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CN113895518B - Vehicle Steering Ratio Adjustment Method, Device and Storage Medium - Google Patents

Vehicle Steering Ratio Adjustment Method, Device and Storage Medium
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CN113895518B
CN113895518BCN202111271017.7ACN202111271017ACN113895518BCN 113895518 BCN113895518 BCN 113895518BCN 202111271017 ACN202111271017 ACN 202111271017ACN 113895518 BCN113895518 BCN 113895518B
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罗军
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Shanghai Jidu Automobile Co Ltd
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Abstract

Translated fromChinese

本申请公开了一种车辆转向比的调整方法、装置及存储介质,涉及车辆转向技术领域,该方案解决了现有的线控转向系统中需要反复调试转向比的技术问题,从而改善了用户体验。该方法包括:接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值;基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系;在车辆行驶过程中,基于转向比与工况的对应关系,根据车辆的工况调整车辆的转向比。

Figure 202111271017

The application discloses a method, device and storage medium for adjusting the steering ratio of a vehicle, and relates to the technical field of vehicle steering. The solution solves the technical problem of repeatedly adjusting the steering ratio in the existing steering-by-wire system, thereby improving the user experience . The method includes: receiving the driver's steering operation on the steering wheel, and obtaining the first extreme value of the steering wheel angle; based on the first extreme value of the steering wheel angle, combined with the corresponding relationship between the extreme value of the front wheel angle and the working condition, determining the correspondence between the steering ratio and the working condition relationship; during the driving process of the vehicle, based on the corresponding relationship between the steering ratio and the working condition, the steering ratio of the vehicle is adjusted according to the working condition of the vehicle.

Figure 202111271017

Description

Translated fromChinese
车辆转向比的调整方法、装置及存储介质Vehicle Steering Ratio Adjustment Method, Device and Storage Medium

技术领域technical field

本申请实施例涉及车辆转向技术领域,尤其涉及一种车辆转向比的调整方法、装置及存储介质。The embodiments of the present application relate to the technical field of vehicle steering, and in particular, to a method, device and storage medium for adjusting a vehicle steering ratio.

背景技术Background technique

传统的汽车转向系统中,车辆的方向盘与前轮之间为机械连接,驾驶员操纵方向盘时方向盘的转动角度与车辆前轮的转动角度之间的比值(即转向比)为定值。这种固定转向比的转向系统无法满足不同用户的操纵需求。线控转向系统的提出,取消了方向盘与前轮之间的机械连接,使得转向比可以根据用户需求进行调整,从而使得车辆的控制更加灵活。In a traditional automobile steering system, the steering wheel of the vehicle is mechanically connected to the front wheels, and the ratio between the steering wheel's rotation angle and the vehicle's front wheel's rotation angle (ie, the steering ratio) is a constant value when the driver manipulates the steering wheel. This steering system with a fixed steering ratio cannot meet the manipulation demands of different users. The proposal of the steer-by-wire system cancels the mechanical connection between the steering wheel and the front wheels, so that the steering ratio can be adjusted according to user needs, thus making the control of the vehicle more flexible.

现有的线控转向系统中,驾驶员可以在车载显示屏中输入想要设定的转向比,车辆转向比采集装置可以根据用户的输入来调整转向比。然而,现有的线控转向系统中,驾驶员无法直观感受到不同转向比下方向盘的最大转角,需要反复调试转向比才能调整到满足自身需求的转向比,且转向比设定后不能自适应车辆状态和行驶工况的变化,影响了用户体验。In the existing steer-by-wire system, the driver can input the desired steering ratio on the vehicle display screen, and the vehicle steering ratio acquisition device can adjust the steering ratio according to the user's input. However, in the existing steer-by-wire system, the driver cannot intuitively feel the maximum steering angle of the steering wheel under different steering ratios, and the steering ratio needs to be adjusted repeatedly to adjust to the steering ratio that meets his own needs, and the steering ratio cannot be self-adapted after setting Changes in vehicle status and driving conditions affect user experience.

发明内容Contents of the invention

本申请提供一种车辆转向比的调整方法、装置及存储介质,解决了现有的线控转向系统中需要反复调试转向比的技术问题,改善了用户体验。The present application provides a method, device and storage medium for adjusting a steering ratio of a vehicle, which solves the technical problem of repeatedly adjusting the steering ratio in an existing steering-by-wire system and improves user experience.

为达到上述目的,本申请采用如下技术方案:In order to achieve the above object, the application adopts the following technical solutions:

第一方面,本申请提供一种车辆转向比的调整方法,包括:接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值;基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系;在车辆行驶过程中,基于转向比与工况的对应关系,根据车辆的工况调整车辆的转向比。In a first aspect, the present application provides a method for adjusting the steering ratio of a vehicle, including: receiving the driver's steering operation on the steering wheel, and obtaining the first extreme value of the steering wheel angle; based on the first extreme value of the steering wheel angle, combining the extreme value of the front wheel angle with the The corresponding relationship between the working conditions determines the corresponding relationship between the steering ratio and the working conditions; during the driving process of the vehicle, based on the corresponding relationship between the steering ratio and the working conditions, the steering ratio of the vehicle is adjusted according to the working conditions of the vehicle.

本申请提供的技术方案中,驾驶员可以根据自身需求在驾驶前对方向盘进行转向操作,将方向盘转到期望的最大转角(即本申请中的第一方向盘转角极值)。由于转向比即为方向盘转角与前轮转角的比值,所以,根据该第一方向盘转角极值和预先确定的前轮转角极值与工况的对应关系,可以确定出满足驾驶员需求的转向比与工况的对应关系。这样,在车辆行驶过程中,可以根据确定出的转向比与工况的对应关系以及实时工况调整转向比。可以看出,在本申请提供的技术方案中,驾驶员只需在驾驶前将方向盘转到期望的最大转角,无需反复输入转向比进行调试,就可以在驾驶过程中根据实时工况将转向比调整至需求的转向比,极大地改善了用户体验。In the technical solution provided by this application, the driver can perform a steering operation on the steering wheel before driving according to his own needs, and turn the steering wheel to the desired maximum rotation angle (ie, the first extreme value of the steering wheel rotation angle in this application). Since the steering ratio is the ratio of the steering wheel angle to the front wheel angle, the steering ratio that meets the driver’s needs can be determined according to the first extreme value of the steering wheel angle and the predetermined relationship between the extreme value of the front wheel angle and the working conditions. The corresponding relationship with the working conditions. In this way, during the running of the vehicle, the steering ratio can be adjusted according to the determined corresponding relationship between the steering ratio and the working condition and the real-time working condition. It can be seen that in the technical solution provided by this application, the driver only needs to turn the steering wheel to the desired maximum angle before driving, without repeatedly inputting the steering ratio for debugging, and can adjust the steering ratio according to the real-time working conditions during driving. The steering ratio adjusted to the demand greatly improves the user experience.

可选的,在一种可能的设计方式中,上述“接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值”之前,还可以包括:Optionally, in a possible design, before the above "receive the driver's steering operation on the steering wheel and obtain the extreme value of the first steering wheel angle", it may also include:

调用第一数据分析模型,基于驾驶员的用户信息、车辆的车型信息以及车辆在不同工况下的参数信息,确定第二方向盘转角极值;第一数据分析模型根据第一样本数据得到;第一样本数据中至少包括用户信息、车型信息、参数信息和方向盘转角极值的映射关系;Invoking the first data analysis model, based on the driver's user information, the vehicle model information, and the parameter information of the vehicle under different working conditions, to determine the second extreme value of the steering wheel angle; the first data analysis model is obtained according to the first sample data; The first sample data includes at least user information, vehicle model information, parameter information, and a mapping relationship between extreme steering wheel angles;

根据第二方向盘转角极值和第三方向盘转角极值,确定方向盘转角极值区间,第三方向盘转角极值根据车辆的线控转向系统性能极值确定;According to the extreme value of the second steering wheel angle and the extreme value of the third steering wheel angle, the extreme value range of the steering wheel angle is determined, and the extreme value of the third steering wheel angle is determined according to the extreme value of the performance of the steer-by-wire system of the vehicle;

显示方向盘转角极值区间和第一提示信息;第一提示信息用于提示驾驶员基于方向盘转角极值区间进行转向操作。The extreme value interval of the steering wheel angle and the first prompt information are displayed; the first prompt information is used to prompt the driver to perform a steering operation based on the extreme value interval of the steering wheel angle.

可选的,在另一种可能的设计方式中,上述“根据第二方向盘转角极值和第三方向盘转角极值,确定方向盘转角极值区间”可以包括:Optionally, in another possible design manner, the above-mentioned "determining the extreme steering wheel angle interval according to the second extreme value of the steering wheel angle and the third extreme value of the steering wheel angle" may include:

对比第三方向盘转角极值和第二方向盘转角极值的大小,将第二方向盘转角极值和第三方向盘转角极值中数值较小的值确定为方向盘转角极值区间的最大值;并且,将预设方向盘转角确定为方向盘转角极值区间的最小值。Comparing the magnitudes of the third extreme steering wheel angle and the second extreme steering wheel angle, determining the smaller value of the second extreme steering wheel angle and the third extreme steering wheel angle as the maximum value of the extreme range of steering wheel angles; and, The preset steering wheel angle is determined as the minimum value of the extreme value interval of the steering wheel angle.

可选的,在另一种可能的设计方式中,上述“基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系”之前,还可以包括:Optionally, in another possible design mode, before the above-mentioned "based on the first steering wheel extreme value, combined with the corresponding relationship between the front wheel angle extreme value and the working condition, determine the corresponding relationship between the steering ratio and the working condition", there is also Can include:

调用第二数据分析模型,基于车辆的车型信息和车辆在不同工况下的参数信息,确定第一前轮转角极值与工况的对应关系;第二数据分析模型根据第二样本数据得到;第二样本数据中至少包括车型信息、参数信息、工况和前轮转角极值的映射关系;Invoking the second data analysis model, based on the vehicle model information and the parameter information of the vehicle under different working conditions, determining the corresponding relationship between the extreme value of the first front wheel rotation angle and the working conditions; the second data analysis model is obtained according to the second sample data; The second sample data includes at least the mapping relationship between vehicle type information, parameter information, working conditions, and extreme values of front wheel rotation angles;

根据第一前轮转角极值与工况的对应关系,结合第二前轮转角极值与工况的对应关系,确定前轮转角极值与工况的对应关系;第二前轮转角极值与工况的对应关系根据车辆的线控转向系统性能极值确定。According to the corresponding relationship between the first extreme value of the front wheel angle and the working condition, combined with the corresponding relationship between the second extreme value of the front wheel angle and the working condition, determine the corresponding relationship between the extreme value of the front wheel angle and the working condition; the second extreme value of the front wheel angle The corresponding relationship with the working conditions is determined according to the performance extreme value of the steer-by-wire system of the vehicle.

可选的,在另一种可能的设计方式中,上述“根据第一前轮转角极值与工况的对应关系,结合第二前轮转角极值与工况的对应关系,确定前轮转角极值与工况的对应关系”可以包括:Optionally, in another possible design mode, the above "according to the corresponding relationship between the first extreme value of the front wheel angle and the working condition, combined with the corresponding relationship between the second extreme value of the front wheel angle and the working condition, determine the front wheel angle Correspondence between extreme values and operating conditions" may include:

基于第一前轮转角极值与工况的对应关系,以及第二前轮转角极值与工况的对应关系,对比不同工况下第一前轮转角极值和第二前轮转角极值的大小,将不同工况下第一前轮转角极值和第二前轮转角极值中数值较小的值确定为目标前轮转角极值,得到前轮转角极值与工况的对应关系。Based on the corresponding relationship between the first extreme value of the front wheel angle and the working condition, and the corresponding relationship between the second extreme value of the front wheel angle and the working condition, compare the first extreme value of the front wheel angle and the second extreme value of the front wheel angle under different working conditions The size of the first front wheel angle extreme value and the second front wheel angle extreme value under different working conditions is determined as the smaller value of the target front wheel angle extreme value, and the corresponding relationship between the front wheel angle extreme value and the working condition is obtained .

可选的,在另一种可能的设计方式中,本申请提供的车辆转向比的调整方法还可以包括:Optionally, in another possible design manner, the method for adjusting the vehicle steering ratio provided by the present application may also include:

在车辆行驶过程中,采集行驶数据;行驶数据至少包括工况和前轮转角极值;During the driving process of the vehicle, collect driving data; the driving data includes at least the operating conditions and the extreme value of the front wheel angle;

在采集到的行驶数据满足预设条件的情况下,以行驶数据更新第二样本数据,并根据更新后的第二样本数据重新得到第二数据分析模型。When the collected driving data satisfies the preset condition, the driving data is used to update the second sample data, and the second data analysis model is re-obtained according to the updated second sample data.

可选的,在另一种可能的设计方式中,上述“接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值”之前,还可以包括:Optionally, in another possible design, before the above "receive the driver's steering operation on the steering wheel, and obtain the first extreme value of the steering wheel angle", it may also include:

显示转向比设置模式,转向比设置模式包括以下至少一项:定转向比模式和自定义转向比模式;Displaying the steering ratio setting mode, the steering ratio setting mode includes at least one of the following: a fixed steering ratio mode and a custom steering ratio mode;

接收驾驶员对自定义转向比模式的触发操作,启动自定义转向比模式。Receive the driver's trigger operation on the custom steering ratio mode, and start the custom steering ratio mode.

可选的,在另一种可能的设计方式中,上述“确定转向比与工况的对应关系”之后,还可以包括:Optionally, in another possible design, after the above "determining the correspondence between the steering ratio and the working condition", it may also include:

接收驾驶员对虚拟驾驶控件的触发操作,启动虚拟驾驶模式;Receive the driver's trigger operation on the virtual driving control and start the virtual driving mode;

在虚拟驾驶过程中,基于转向比与工况的对应关系,根据驾驶员对方向盘的操作显示不同工况下车辆的运动状态;In the virtual driving process, based on the corresponding relationship between the steering ratio and the working conditions, the vehicle's motion state under different working conditions is displayed according to the driver's operation on the steering wheel;

虚拟驾驶结束之后,判断是否接收到驾驶员调整转向比的指令;After the virtual driving is over, it is judged whether an instruction from the driver to adjust the steering ratio is received;

若是,则显示转向比设置模式,重新确定转向比与工况的对应关系;If yes, display the steering ratio setting mode, and re-determine the corresponding relationship between the steering ratio and the working condition;

若否,将转向比与工况的对应关系应用于车辆,并退出转向比设置模式。If not, apply the corresponding relationship between the steering ratio and the working condition to the vehicle, and exit the steering ratio setting mode.

第二方面,本申请提供一种车辆转向比的调整装置,包括获取模块、确定模块和调整模块;In a second aspect, the present application provides a vehicle steering ratio adjustment device, including an acquisition module, a determination module, and an adjustment module;

获取模块,用于接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值;The obtaining module is used to receive the driver's steering operation on the steering wheel, and obtain the first extreme value of the steering wheel angle;

确定模块,用于基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系;A determining module, configured to determine the correspondence between the steering ratio and the working conditions based on the extreme value of the first steering wheel rotation angle and in combination with the corresponding relationship between the extreme value of the front wheel rotation angle and the working condition;

调整模块,用于在车辆行驶过程中,基于转向比与工况的对应关系,根据车辆的工况调整车辆的转向比。The adjustment module is used to adjust the steering ratio of the vehicle according to the working conditions of the vehicle based on the corresponding relationship between the steering ratio and the working conditions during the running of the vehicle.

可选的,在一种可能的设计方式中,本申请提供的车辆转向比的调整装置还包括:显示模块;Optionally, in a possible design, the device for adjusting the steering ratio of the vehicle provided by the present application further includes: a display module;

确定模块还用于,在获取模块获取第一方向盘转角极值之前,调用第一数据分析模型,基于驾驶员的用户信息、车辆的车型信息以及车辆在不同工况下的参数信息,确定第二方向盘转角极值;第一数据分析模型根据第一样本数据得到;第一样本数据中至少包括用户信息、车型信息、参数信息和方向盘转角极值的映射关系;The determination module is also used to call the first data analysis model before the acquisition module obtains the first steering wheel angle extreme value, and determine the second steering wheel angle based on the driver's user information, the vehicle model information and the parameter information of the vehicle under different working conditions. The extreme value of the steering wheel angle; the first data analysis model is obtained according to the first sample data; the first sample data at least includes the mapping relationship between user information, model information, parameter information and the extreme value of the steering wheel angle;

确定模块还用于,根据第二方向盘转角极值和第三方向盘转角极值,确定方向盘转角极值区间,第三方向盘转角极值根据车辆的线控转向系统性能极值确定;The determination module is also used to determine the range of the extreme value of the steering wheel angle according to the second extreme value of the steering wheel angle and the extreme value of the third steering wheel angle, and the extreme value of the third steering wheel angle is determined according to the extreme value of the performance of the steering-by-wire system of the vehicle;

显示模块,用于显示确定模块确定的方向盘转角极值区间和第一提示信息;第一提示信息用于提示驾驶员基于方向盘转角极值区间进行转向操作。The display module is used to display the extreme value interval of the steering wheel angle determined by the determination module and the first prompt information; the first prompt information is used to remind the driver to perform a steering operation based on the extreme value interval of the steering wheel angle.

可选的,在另一种可能的设计方式中,确定模块具体用于:Optionally, in another possible design mode, it is determined that the module is specifically used for:

对比第三方向盘转角极值和第二方向盘转角极值的大小,将第二方向盘转角极值和第三方向盘转角极值中数值较小的值确定为方向盘转角极值区间的最大值;并且,将预设方向盘转角确定为方向盘转角极值区间的最小值。Comparing the magnitudes of the third extreme steering wheel angle and the second extreme steering wheel angle, determining the smaller value of the second extreme steering wheel angle and the third extreme steering wheel angle as the maximum value of the extreme range of steering wheel angles; and, The preset steering wheel angle is determined as the minimum value of the extreme value interval of the steering wheel angle.

可选的,在另一种可能的设计方式中,确定模块还用于:Optionally, in another possible design mode, the determination module is also used for:

在确定转向比与工况的对应关系之前,调用第二数据分析模型,基于车辆的车型信息和车辆在不同工况下的参数信息,确定第一前轮转角极值与工况的对应关系;第二数据分析模型根据第二样本数据得到;第二样本数据中至少包括车型信息、参数信息、工况和前轮转角极值的映射关系;Before determining the corresponding relationship between the steering ratio and the working condition, the second data analysis model is called to determine the corresponding relationship between the extreme value of the first front wheel rotation angle and the working condition based on the vehicle model information and the parameter information of the vehicle under different working conditions; The second data analysis model is obtained according to the second sample data; the second sample data includes at least the mapping relationship between vehicle type information, parameter information, working conditions and extreme values of front wheel rotation angles;

根据第一前轮转角极值与工况的对应关系,结合第二前轮转角极值与工况的对应关系,确定前轮转角极值与工况的对应关系;第二前轮转角极值与工况的对应关系根据车辆的线控转向系统性能极值确定。According to the corresponding relationship between the first extreme value of the front wheel angle and the working condition, combined with the corresponding relationship between the second extreme value of the front wheel angle and the working condition, determine the corresponding relationship between the extreme value of the front wheel angle and the working condition; the second extreme value of the front wheel angle The corresponding relationship with the working conditions is determined according to the performance extreme value of the steer-by-wire system of the vehicle.

可选的,在另一种可能的设计方式中,确定模块具体用于:Optionally, in another possible design mode, it is determined that the module is specifically used for:

基于第一前轮转角极值与工况的对应关系,以及第二前轮转角极值与工况的对应关系,对比不同工况下第一前轮转角极值和第二前轮转角极值的大小,将不同工况下第一前轮转角极值和第二前轮转角极值中数值较小的值确定为目标前轮转角极值,得到前轮转角极值与工况的对应关系。Based on the corresponding relationship between the first extreme value of the front wheel angle and the working condition, and the corresponding relationship between the second extreme value of the front wheel angle and the working condition, compare the first extreme value of the front wheel angle and the second extreme value of the front wheel angle under different working conditions The size of the first front wheel angle extreme value and the second front wheel angle extreme value under different working conditions is determined as the smaller value of the target front wheel angle extreme value, and the corresponding relationship between the front wheel angle extreme value and the working condition is obtained .

可选的,在另一种可能的设计方式中,本申请提供的车辆转向比的调整装置还可以包括更新模块:Optionally, in another possible design, the device for adjusting the steering ratio of the vehicle provided by the present application may also include an update module:

获取模块,还用于在车辆行驶过程中,采集行驶数据;行驶数据至少包括工况和前轮转角极值;The acquisition module is also used to collect driving data during the driving process of the vehicle; the driving data includes at least the working condition and the extreme value of the front wheel angle;

更新模块,用于在采集到的行驶数据满足预设条件的情况下,以行驶数据更新第二样本数据,并根据更新后的第二样本数据重新得到第二数据分析模型。The updating module is used to update the second sample data with the driving data when the collected driving data satisfies the preset condition, and re-obtain the second data analysis model according to the updated second sample data.

可选的,在另一种可能的设计方式中,本申请提供的车辆转向比的调整装置还可以包括显示模块和启动模块:Optionally, in another possible design, the device for adjusting the steering ratio of the vehicle provided by the present application may also include a display module and a start module:

显示模块,用于在获取模块获取第一方向盘转角极值之前,显示转向比设置模式,转向比设置模式包括以下至少一项:定转向比模式和自定义转向比模式;The display module is used to display the steering ratio setting mode before the acquisition module acquires the extreme value of the first steering wheel angle. The steering ratio setting mode includes at least one of the following: a fixed steering ratio mode and a custom steering ratio mode;

启动模块,用于接收驾驶员对自定义转向比模式的触发操作,启动自定义转向比模式。The starting module is configured to receive a driver's trigger operation on the custom steering ratio mode, and start the custom steering ratio mode.

可选的,在另一种可能的设计方式中,本申请提供的车辆转向比的调整装置还可以包括判断模块和启动模块;Optionally, in another possible design, the device for adjusting the steering ratio of the vehicle provided by the present application may also include a judging module and a starting module;

启动模块还用于,接收驾驶员对虚拟驾驶控件的触发操作,启动虚拟驾驶模式;The starting module is also used to receive the driver's trigger operation on the virtual driving control to start the virtual driving mode;

调整模块还用于,在虚拟驾驶过程中,基于转向比与工况的对应关系,根据驾驶员对方向盘的操作显示不同工况下车辆的运动状态;The adjustment module is also used to display the motion state of the vehicle under different working conditions according to the driver's operation on the steering wheel based on the corresponding relationship between the steering ratio and the working conditions during the virtual driving process;

判断模块,用于虚拟驾驶结束之后,判断是否接收到驾驶员调整转向比的指令;若是,则显示转向比设置模式,重新确定转向比与工况的对应关系;若否,将转向比与工况的对应关系应用于车辆,并退出转向比设置模式。The judging module is used to judge whether the driver has received an instruction to adjust the steering ratio after the virtual driving is over; The corresponding relationship to the situation is applied to the vehicle, and the steering ratio setting mode is exited.

第三方面,本申请提供一种车辆转向比的调整装置,包括存储器、处理器、总线和通信接口;存储器用于存储计算机执行指令,处理器与存储器通过总线连接;当车辆转向比的调整装置运行时,处理器执行存储器存储的计算机执行指令,以使车辆转向比的调整装置执行如上述第一方面提供的车辆转向比的调整方法。In a third aspect, the present application provides a vehicle steering ratio adjustment device, including a memory, a processor, a bus and a communication interface; the memory is used to store computer-executed instructions, and the processor and the memory are connected through a bus; when the vehicle steering ratio adjustment device During operation, the processor executes the computer-executed instructions stored in the memory, so that the device for adjusting the steering ratio of the vehicle executes the method for adjusting the steering ratio of the vehicle as provided in the first aspect above.

可选的,该车辆转向比的调整装置还可以包括收发器,该收发器用于在车辆转向比的调整装置的处理器的控制下,执行收发数据、信令或者信息的步骤,例如,获取第一方向盘转角极值。Optionally, the device for adjusting the steering ratio of the vehicle may also include a transceiver, which is used for performing the steps of sending and receiving data, signaling or information under the control of the processor of the device for adjusting the steering ratio of the vehicle, for example, obtaining the first An extreme value of the steering wheel angle.

进一步可选的,该车辆转向比的调整装置可以是车辆的车载设备,也可以是与车载设备连接的用户终端。该车辆转向比的调整装置可以实现第一方面中所涉及的功能,例如,接收,发送或处理上述车辆转向比的调整方法中所涉及的数据和/或信息。该车载设备中包括芯片系统,芯片系统可以包括芯片,也可以包括其他分立器件或电路结构。Further optionally, the device for adjusting the steering ratio of the vehicle may be an on-board device of the vehicle, or may be a user terminal connected to the on-board device. The device for adjusting the steering ratio of the vehicle can realize the functions involved in the first aspect, for example, receiving, sending or processing the data and/or information involved in the above method for adjusting the steering ratio of the vehicle. The vehicle-mounted device includes a chip system, and the chip system may include a chip, or may include other discrete devices or circuit structures.

第四方面,本申请提供一种计算机可读存储介质,计算机可读存储介质中存储有指令,当计算机执行指令时,使得计算机执行如第一方面提供的车辆转向比的调整方法。In a fourth aspect, the present application provides a computer-readable storage medium, in which instructions are stored, and when the computer executes the instructions, the computer executes the method for adjusting the vehicle steering ratio as provided in the first aspect.

第五方面,本申请提供一种计算机程序产品,该计算机程序产品包括计算机指令,当计算机指令在计算机上运行时,使得计算机执行如第一方面提供的车辆转向比的调整方法。In a fifth aspect, the present application provides a computer program product, the computer program product includes computer instructions, and when the computer instructions are run on a computer, the computer executes the method for adjusting the steering ratio of a vehicle as provided in the first aspect.

需要说明的是,上述计算机指令可以全部或者部分存储在计算机可读存储介质上。其中,计算机可读存储介质可以与车辆转向比的调整装置的处理器封装在一起的,也可以与车辆转向比的调整装置的处理器单独封装,本申请对此不做限定。It should be noted that all or part of the above computer instructions may be stored on a computer-readable storage medium. Wherein, the computer-readable storage medium may be packaged together with the processor of the vehicle steering ratio adjusting device, or may be packaged separately with the vehicle steering ratio adjusting device's processor, which is not limited in this application.

本申请中第二方面、第三方面、第四方面以及第五方面的描述,可以参考第一方面的详细描述;并且,第二方面、第三方面、第四方面以及第五方面的描述的有益效果,可以参考第一方面的有益效果分析,此处不再赘述。For the description of the second aspect, the third aspect, the fourth aspect and the fifth aspect in this application, you can refer to the detailed description of the first aspect; and, the description of the second aspect, the third aspect, the fourth aspect and the fifth aspect For the beneficial effect, reference may be made to the analysis of the beneficial effect in the first aspect, which will not be repeated here.

在本申请中,上述车辆转向比的调整装置的名字对设备或功能模块本身不构成限定,在实际实现中,这些设备或功能模块可以以其他名称出现。只要各个设备或功能模块的功能和本申请类似,属于本申请权利要求及其等同技术的范围之内。In this application, the names of the above-mentioned vehicle steering ratio adjustment devices do not constitute limitations on the equipment or functional modules themselves, and in actual implementation, these equipment or functional modules may appear with other names. As long as the functions of each device or functional module are similar to those of the present application, they fall within the scope of the claims of the present application and their equivalent technologies.

本申请的这些方面或其他方面在以下的描述中会更加简明易懂。These or other aspects of the present application will be more clearly understood in the following description.

附图说明Description of drawings

图1为本申请实施例提供的一种车辆转向比的调整方法的流程示意图;FIG. 1 is a schematic flowchart of a method for adjusting a steering ratio of a vehicle provided in an embodiment of the present application;

图2为本申请实施例提供的另一种车辆转向比的调整方法的流程示意图;FIG. 2 is a schematic flowchart of another method for adjusting a vehicle steering ratio provided in an embodiment of the present application;

图3为本申请实施例提供的又一种车辆转向比的调整方法的流程示意图;FIG. 3 is a schematic flow chart of another method for adjusting a steering ratio of a vehicle provided in an embodiment of the present application;

图4为本申请实施例提供的又一种车辆转向比的调整方法的流程示意图;FIG. 4 is a schematic flowchart of another method for adjusting the steering ratio of a vehicle provided in the embodiment of the present application;

图5为本申请实施例提供的一种车辆转向比的调整装置的结构示意图;FIG. 5 is a schematic structural diagram of a vehicle steering ratio adjustment device provided by an embodiment of the present application;

图6为本申请实施例提供的另一种车辆转向比的调整装置的结构示意图。FIG. 6 is a schematic structural diagram of another device for adjusting a steering ratio of a vehicle provided by an embodiment of the present application.

具体实施方式Detailed ways

下面结合附图对本申请实施例提供的车辆转向比的调整方法、装置及存储介质进行详细地描述。The method, device and storage medium for adjusting the steering ratio of a vehicle provided by the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

本申请的说明书以及附图中的术语“第一”和“第二”等是用于区别不同的对象,或者用于区别对同一对象的不同处理,而不是用于描述对象的特定顺序。The terms "first" and "second" in the specification and drawings of the present application are used to distinguish different objects, or to distinguish different processes for the same object, rather than to describe a specific sequence of objects.

此外,本申请的描述中所提到的术语“包括”和“具有”以及它们的任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元,而是可选的还包括其他没有列出的步骤或单元,或可选的还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。In addition, the terms "including" and "having" mentioned in the description of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other unlisted steps or units, or may optionally also include Other steps or elements inherent to the process, method, product or apparatus are included.

在本申请的描述中,除非另有说明,“多个”的含义是指两个或两个以上。In the description of the present application, unless otherwise specified, the meaning of "plurality" refers to two or more.

现有的线控转向系统中,驾驶员可以在车载显示屏中输入想要设定的转向比,车辆转向比采集装置可以根据用户的输入来调整转向比。然而,现有的线控转向系统中,驾驶员无法直观感受到不同转向比下方向盘的最大转角,需要反复调试转向比才能调整到满足自身需求的转向比,且转向比设定后不能自适应车辆状态和行驶工况的变化,影响了用户体验。In the existing steer-by-wire system, the driver can input the desired steering ratio on the vehicle display screen, and the vehicle steering ratio acquisition device can adjust the steering ratio according to the user's input. However, in the existing steer-by-wire system, the driver cannot intuitively feel the maximum steering angle of the steering wheel under different steering ratios, and the steering ratio needs to be adjusted repeatedly to adjust to the steering ratio that meets his own needs, and the steering ratio cannot be self-adapted after setting Changes in vehicle status and driving conditions affect user experience.

针对上述现有技术中存在的问题,本申请实施例提供了一种车辆转向比的调整方法,该方法中,驾驶员只需在驾驶前将方向盘转到第一方向盘转角极值,无需反复输入转向比进行调试,就可以在驾驶过程中根据实时工况将转向比调整至与用户习惯自适应的转向比,极大地改善了用户体验。In view of the above-mentioned problems in the prior art, the embodiment of the present application provides a method for adjusting the steering ratio of a vehicle. In this method, the driver only needs to turn the steering wheel to the first extreme value of the steering wheel angle before driving without repeatedly inputting By tuning the steering ratio, the steering ratio can be adjusted to a steering ratio that is adaptive to the user's habits according to real-time working conditions during driving, which greatly improves the user experience.

本申请实施例提供的车辆转向比的调整方法可以应用于车辆转向比的调整方装置,该车辆转向比的调整装置可以是车辆的车载设备,或者,可以是与车载设备连接(比如,蓝牙连接或有线连接等)的用户终端。示例性的,在本申请实施例中,将以车辆转向比的调整装置为车辆的车载设备为例展开说明。The vehicle steering ratio adjustment method provided by the embodiment of the present application can be applied to the vehicle steering ratio adjustment device, and the vehicle steering ratio adjustment device can be a vehicle-mounted device, or can be connected to a vehicle-mounted device (such as a Bluetooth connection) or wired connection, etc.) user terminal. Exemplarily, in the embodiment of the present application, the vehicle steering ratio adjustment device is an on-board equipment of the vehicle as an example to expand the description.

其中,用户终端可以是手机、平板电脑、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer,UMPC)、手持计算机、上网本、个人数字助理(personaldigital assistant,PDA)、可穿戴电子设备以及虚拟现实设备等不同类型的终端。Wherein, the user terminal may be a mobile phone, tablet computer, notebook computer, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), handheld computer, netbook, personal digital assistant (personal digital assistant, PDA), wearable electronic device and virtual reality Different types of terminals such as equipment.

下面对本申请实施例提供的车辆转向比的调整方法进行详细说明。The method for adjusting the steering ratio of the vehicle provided by the embodiment of the present application will be described in detail below.

参照图1,本申请实施例提供的车辆转向比的调整方法包括S101-S103:Referring to Fig. 1, the method for adjusting the vehicle steering ratio provided by the embodiment of the present application includes S101-S103:

S101、接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值。S101. Receive a driver's steering operation on the steering wheel, and acquire a first steering wheel rotation angle extreme value.

本申请实施例中,当驾驶员有车辆转向比的调整需求时,可以在驾驶前通过对方向盘进行转向操作,向车辆转向比的调整装置发送第一方向盘转角极值,该第一方向盘转角极值即为驾驶员在进行转向操作时将方向盘转动的最大转角。In the embodiment of the present application, when the driver needs to adjust the steering ratio of the vehicle, he can perform a steering operation on the steering wheel before driving to send the first steering wheel angle extreme value to the vehicle steering ratio adjustment device. The first steering wheel angle extreme value The value is the maximum angle at which the driver turns the steering wheel when performing a steering operation.

可以理解的是,本申请实施例的描述中涉及的方向盘转角极值以及前轮转角极值,均可以是最大转角。通过本步骤可以使驾驶员直观的感受前轮转角与方向盘转角之间的关系,更易于用户调整转向比。It can be understood that the extreme value of the steering wheel rotation angle and the extreme value of the front wheel rotation angle involved in the description of the embodiment of the present application may both be the maximum rotation angle. Through this step, the driver can intuitively feel the relationship between the front wheel rotation angle and the steering wheel rotation angle, and it is easier for the user to adjust the steering ratio.

S102、基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系。S102. Based on the extreme value of the first steering wheel rotation angle and in combination with the corresponding relationship between the extreme value of the front wheel rotation angle and the working condition, determine the corresponding relationship between the steering ratio and the working condition.

由于转向比=方向盘转角/前轮转角,所以,本申请实施例中可以基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系。Since the steering ratio=steering wheel angle/front wheel angle, in the embodiment of the present application, the correspondence between the steering ratio and the working conditions can be determined based on the first extreme value of the steering wheel angle and in combination with the corresponding relationship between the extreme value of the front wheel angle and the working conditions.

示例性的,在一种可能的实现方式中,前轮转角极值与工况的对应关系可以为前轮转角极值随车速变化的曲线。对应的,转向比与工况的对应关系可以为转向比随车速变化的曲线。比如,前轮转角极值随车速变化的曲线的横坐标可以为车速,纵坐标可以为前轮转角极值,保持前轮转角极值随车速变化的曲线中横坐标(车速)不变,用第一方向盘转角极值除以曲线中纵坐标(前轮转角极值),则可以得到转向比随车速变化的曲线。Exemplarily, in a possible implementation manner, the corresponding relationship between the extreme value of the front wheel rotation angle and the working condition may be a curve of the change of the extreme value of the front wheel rotation angle with the vehicle speed. Correspondingly, the corresponding relationship between the steering ratio and the working condition may be a curve of the steering ratio changing with the vehicle speed. For example, the abscissa of the curve where the extreme value of the front wheel angle changes with the speed of the vehicle can be the vehicle speed, and the ordinate can be the extreme value of the front wheel angle, and the abscissa (vehicle speed) in the curve where the extreme value of the front wheel angle changes with the speed of the vehicle remains unchanged. Dividing the extreme value of the first steering wheel angle by the ordinate in the curve (extreme value of the front wheel angle), the curve of the steering ratio changing with the vehicle speed can be obtained.

可选的,在基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系之前,本申请实施例提供的车辆转向比的调整方法还可以包括,通过如下方式确定前轮转角极值与工况的对应关系:调用第二数据分析模型,基于车辆的车型信息和车辆在不同工况下的参数信息,确定第一前轮转角极值与工况的对应关系;然后,根据第一前轮转角极值与工况的对应关系,结合第二前轮转角极值与工况的对应关系,确定前轮转角极值与工况的对应关系。Optionally, before determining the corresponding relationship between the steering ratio and the working condition based on the first extreme value of the steering wheel angle and in combination with the corresponding relationship between the extreme value of the front wheel rotation angle and the working condition, the method for adjusting the steering ratio of the vehicle provided in the embodiment of the present application further It may include determining the corresponding relationship between the extreme value of the front wheel angle and the working condition in the following manner: calling the second data analysis model, and determining the first extreme value of the front wheel angle based on the model information of the vehicle and the parameter information of the vehicle under different working conditions The corresponding relationship with the working conditions; then, according to the corresponding relationship between the first extreme value of the front wheel angle and the working condition, combined with the corresponding relationship between the second extreme value of the front wheel angle and the working condition, determine the corresponding relationship between the extreme value of the front wheel angle and the working condition relation.

本申请实施例中,可以先调用第二数据分析模型确定出第一前轮转角极值与工况的对应关系,然后参考该第一前轮转角极值与工况的对应关系,确定前轮转角极值与工况的对应关系。其中,第二数据分析模型根据第二样本数据得到;第二样本数据中至少包括车型信息、参数信息、工况和前轮转角极值的映射关系。In the embodiment of the present application, the second data analysis model can be called first to determine the corresponding relationship between the extreme value of the first front wheel angle and the working condition, and then refer to the corresponding relationship between the first extreme value of the front wheel angle and the working condition to determine the The corresponding relationship between the extreme value of the rotation angle and the working condition. Wherein, the second data analysis model is obtained according to the second sample data; the second sample data includes at least the mapping relationship of vehicle type information, parameter information, working conditions and extreme values of front wheel rotation angles.

其中,车型信息可以包括车辆的车型参数,参数信息可以包括不同工况下的车速等信息,不同工况可以为直线、弯道或调头等工况。Wherein, the vehicle type information may include vehicle type parameters, and the parameter information may include information such as vehicle speed under different working conditions, and different working conditions may be working conditions such as straight line, curve or U-turn.

一般的,驾驶员在驾驶不同车型的车辆在不同工况下行驶时,车速不同,车辆的前轮转角极值不同。所以,本申请实施例可以事先获取驾驶员的历史驾驶大数据,然后基于大数据分析算法确定出驾驶员在驾驶不同车型的车辆以不同车速在不同工况下行驶时常用的前轮转角极值,并以此得到第二数据分析模型。在确定第一前轮转角极值与工况的对应关系时,将车辆的车型信息和参数信息输入第二数据分析模型,则可以得到第一前轮转角极值与工况的对应关系。Generally, when a driver drives a vehicle of different models under different working conditions, the vehicle speed is different, and the extreme value of the front wheel rotation angle of the vehicle is different. Therefore, the embodiment of the present application can obtain the driver's historical driving big data in advance, and then determine the extreme value of the front wheel angle commonly used by the driver when driving different types of vehicles at different speeds and under different working conditions based on the big data analysis algorithm , and obtain the second data analysis model. When determining the corresponding relationship between the extreme value of the first front wheel rotation angle and the working condition, the vehicle model information and parameter information are input into the second data analysis model, and then the corresponding relationship between the extreme value of the first front wheel rotation angle and the working condition can be obtained.

可选的,本申请实施例提供的车辆转向比的调整方法还可以包括,在车辆行驶过程中,采集行驶数据,该行驶数据至少包括工况和前轮转角极值;之后,在采集到的行驶数据满足预设条件的情况下,以行驶数据更新第二样本数据,并根据更新后的第二样本数据重新得到第二数据分析模型。Optionally, the method for adjusting the steering ratio of the vehicle provided in the embodiment of the present application may also include, during the driving of the vehicle, collecting driving data, the driving data includes at least the working condition and the extreme value of the front wheel angle; after that, after the collected When the driving data satisfies the preset condition, the driving data is used to update the second sample data, and the second data analysis model is newly obtained according to the updated second sample data.

在当前驾驶员首次驾驶当前车辆的情况下,还未采集到当前驾驶员的行驶数据,此时可以获取不同驾驶员的历史驾驶大数据,然后可以通过大数据分析算法确定出与当前驾驶员的用户信息接近的历史驾驶大数据,提取其中的工况和前轮转角极值,作为第二样本数据。然后,在车辆行驶过程中,可以采集当前驾驶员的行驶数据,在采集到的行驶数据的数据量达到一定数量,或者采集行驶数据的时间达到一定时长的情况下,可以以采集到的行驶数据更新之前的第二样本数据,并根据更新后的第二样本数据重新得到第二数据分析模型。这样,随着第二样本数据的更新,第二样本数据将会越来越能表征当前驾驶员的驾驶习惯,基于第二数据分析模型确定出的第一前轮转角极值与工况的对应关系也越来越接近用户的期望值,从而可以进一步提升用户体验。In the case that the current driver is driving the current vehicle for the first time, and the driving data of the current driver has not been collected, the historical driving big data of different drivers can be obtained at this time, and then the relationship with the current driver can be determined through the big data analysis algorithm. The historical driving big data close to the user information is used to extract the operating conditions and the extreme value of the front wheel angle as the second sample data. Then, during the driving process of the vehicle, the driving data of the current driver can be collected. When the data volume of the collected driving data reaches a certain amount, or the time for collecting the driving data reaches a certain length of time, the collected driving data can be The previous second sample data is updated, and the second data analysis model is re-obtained according to the updated second sample data. In this way, with the update of the second sample data, the second sample data will be more and more able to characterize the driving habits of the current driver. The relationship is also getting closer to the user's expectation, which can further improve the user experience.

S103、在车辆行驶过程中,基于转向比与工况的对应关系,根据车辆的工况调整车辆的转向比。S103. During the running of the vehicle, based on the corresponding relationship between the steering ratio and the working conditions, adjust the steering ratio of the vehicle according to the working conditions of the vehicle.

在当前驾驶员首次驾驶当前车辆的情况下,可以通过触发操作触发车辆启动自定义转向比模式,从而触发车辆转向比的调整装置确定转向比与工况的对应关系。可选的,为了进一步提升用户体验,在当前驾驶员驾驶当前车辆的次数达到一定程度时,车辆转向比的调整装置确定转向比与工况的对应关系已经可以满足用户需求,此时可以将该转向比与工况的对应关系锁定,驾驶员驾驶前无需通过对方向盘的转向操作向车辆转向比的调整装置发送第一方向盘转角极值。在车辆行驶过程中,车辆转向比的调整装置直接可以基于锁定的转向比与工况的对应关系,根据当前车速调整车辆的转向比。When the current driver is driving the current vehicle for the first time, the vehicle can be triggered to start the customized steering ratio mode through a trigger operation, thereby triggering the steering ratio adjustment device of the vehicle to determine the corresponding relationship between the steering ratio and the working conditions. Optionally, in order to further improve the user experience, when the number of times the current driver drives the current vehicle reaches a certain level, the vehicle steering ratio adjustment device determines that the corresponding relationship between the steering ratio and the working condition can meet the needs of the user. The corresponding relationship between the steering ratio and the working condition is locked, and the driver does not need to send the first steering wheel angle extreme value to the vehicle steering ratio adjustment device through the steering operation of the steering wheel before driving. During the running of the vehicle, the vehicle steering ratio adjusting device can directly adjust the steering ratio of the vehicle according to the current vehicle speed based on the corresponding relationship between the locked steering ratio and the working conditions.

另外,以用曲线表示对应关系为例,本申请实施例中前轮转角极值随工况变化的曲线可以基于驾驶数据的散点图得到,在得到转向比随工况变化的曲线之后,可以对采用样条曲线或两点之间求取均值等平滑处理方法对得到的曲线做平滑处理,得到相对平滑的平滑曲线。In addition, taking the use of a curve to represent the corresponding relationship as an example, in the embodiment of the present application, the curve of the extreme value of the front wheel angle changing with the working condition can be obtained based on the scatter diagram of the driving data. After obtaining the curve of the steering ratio changing with the working condition, it can be The obtained curve is smoothed by using smoothing methods such as spline curve or finding the mean value between two points, and a relatively smooth smoothed curve is obtained.

可选的,在确定转向比与工况的对应关系之后,本申请实施例提供的车辆转向比的调整方法还可以包括:接收驾驶员对虚拟驾驶控件的触发操作,启动虚拟驾驶模式;在虚拟驾驶过程中,基于转向比与工况的对应关系,根据驾驶员对方向盘的操作显示不同工况下车辆的运动状态;虚拟驾驶结束之后,判断是否接收到驾驶员调整转向比的指令;若是,则显示转向比设置模式,重新确定转向比与工况的对应关系;若否,将转向比与工况的对应关系应用于车辆,并退出转向比设置模式。Optionally, after determining the corresponding relationship between the steering ratio and the working conditions, the method for adjusting the steering ratio of the vehicle provided in the embodiment of the present application may further include: receiving the driver's trigger operation on the virtual driving control, and starting the virtual driving mode; During the driving process, based on the corresponding relationship between the steering ratio and the working conditions, the motion state of the vehicle under different working conditions is displayed according to the driver's operation on the steering wheel; after the virtual driving is over, it is judged whether the driver has received an instruction to adjust the steering ratio; if so, Then display the steering ratio setting mode, and re-determine the corresponding relationship between the steering ratio and the working condition; if not, apply the corresponding relationship between the steering ratio and the working condition to the vehicle, and exit the steering ratio setting mode.

为了使得确定出的转向比与工况的对应关系更接近用户需求,本申请实施例中,在锁定转向比与工况的对应关系之前,还可以为驾驶员提供虚拟驾驶模式。示例性的,虚拟驾驶模式下,车载设备的显示屏中可以播放虚拟驾驶动画,驾驶员可以根据虚拟驾驶动画中的不同工况下的车速对方向盘进行操作,车载设备可以根据方向盘的转动角度和确定出的转向比与工况的对应关系确定前轮转角,并在显示屏中显示不同工况下车辆的运动状态。驾驶员可以根据虚拟驾驶的体验确定是否重新调整转向比与工况的对应关系。In order to make the determined correspondence between the steering ratio and the working conditions closer to the user's needs, in the embodiment of the present application, before locking the correspondence between the steering ratio and the working conditions, a virtual driving mode may also be provided for the driver. Exemplarily, in the virtual driving mode, a virtual driving animation can be played on the display screen of the vehicle-mounted device. The driver can operate the steering wheel according to the speed of the vehicle under different working conditions in the virtual driving animation. The determined corresponding relationship between the steering ratio and the working conditions determines the front wheel angle, and displays the motion state of the vehicle under different working conditions on the display screen. The driver can determine whether to readjust the corresponding relationship between the steering ratio and the working conditions according to the virtual driving experience.

在一种可能的实现过程中,若驾驶员觉得虚拟驾驶的体验还不能满足自身需求,则可以在虚拟驾驶结束之后重新对方向盘进行转向操作。驾驶员重新对方向盘进行的转向操作可以触发向车辆发送调整转向比的指令。车辆接收到调整转向比的指令后,可以重新获取第一方向盘转角极值,从而重新确定转向比与工况的对应关系。In a possible implementation process, if the driver feels that the virtual driving experience cannot meet his own needs, he can re-steer the steering wheel after the virtual driving ends. A renewed steering operation by the driver on the steering wheel can trigger a command to the vehicle to adjust the steering ratio. After the vehicle receives the command to adjust the steering ratio, it can re-acquire the first extreme value of the steering wheel angle, so as to re-determine the corresponding relationship between the steering ratio and the working condition.

在另一种可能的实现过程中,若驾驶员觉得虚拟驾驶的体验可以满足自身需求,则可以在虚拟驾驶过程结束之后,可以对转向比设置模式的确认控件进行触发操作,触发车辆锁定当前确定的转向比与工况的对应关系,并退出转向比设置模式。In another possible implementation process, if the driver feels that the virtual driving experience can meet his own needs, he can trigger the confirmation control of the steering ratio setting mode after the virtual driving process is over to trigger the vehicle to lock the current confirmation The corresponding relationship between the steering ratio and the operating conditions, and exit the steering ratio setting mode.

本申请实施例提供的车辆转向比的调整方法中,驾驶员可以根据自身需求在驾驶前对方向盘进行转向操作,将方向盘转到期望的最大转角(即本申请中的第一方向盘转角极值)。由于转向比即为方向盘转角与前轮转角的比值,所以,根据该第一方向盘转角极值和预先确定的前轮转角极值与工况的对应关系,可以确定出满足驾驶员需求的转向比与工况的对应关系。这样,在车辆行驶过程中,可以根据确定出的转向比与工况的对应关系以及实时工况调整转向比。可以看出,在本申请实施例提供的技术方案中,驾驶员只需在驾驶前将方向盘转到期望的最大转角,无需反复输入转向比进行调试,就可以在驾驶过程中根据实时工况将转向比调整至需求的转向比,极大地改善了用户体验。In the method for adjusting the vehicle steering ratio provided in the embodiment of the present application, the driver can perform steering operations on the steering wheel before driving according to his own needs, and turn the steering wheel to the desired maximum rotation angle (that is, the first extreme value of the steering wheel rotation angle in this application) . Since the steering ratio is the ratio of the steering wheel angle to the front wheel angle, the steering ratio that meets the driver’s needs can be determined according to the first extreme value of the steering wheel angle and the predetermined relationship between the extreme value of the front wheel angle and the working conditions. The corresponding relationship with the working conditions. In this way, during the running of the vehicle, the steering ratio can be adjusted according to the determined corresponding relationship between the steering ratio and the working condition and the real-time working condition. It can be seen that in the technical solution provided by the embodiment of the present application, the driver only needs to turn the steering wheel to the desired maximum angle before driving, without repeatedly inputting the steering ratio for debugging, and can adjust the steering wheel according to the real-time working conditions during the driving process. The steering ratio is adjusted to the required steering ratio, which greatly improves the user experience.

可选的,如图2所示,在图1的步骤S101之前,本申请实施例提供的车辆转向比的调整方法还可以包括:Optionally, as shown in FIG. 2, before step S101 in FIG. 1, the method for adjusting the vehicle steering ratio provided in the embodiment of the present application may further include:

S1001、显示转向比设置模式。S1001, displaying the steering ratio setting mode.

S1002、接收驾驶员对自定义转向比模式的触发操作,启动自定义转向比模式。S1002, receiving a driver's trigger operation on the custom steering ratio mode, and starting the custom steering ratio mode.

其中,转向比设置模式包括以下至少一项:定转向比模式和自定义转向比模式;Wherein, the steering ratio setting mode includes at least one of the following: fixed steering ratio mode and custom steering ratio mode;

为了进一步提升用户体验,本申请实施例提供的车辆转向比的调整方法可以根据用户的需求选择是否在驾驶前对车辆转向比进行调整。具体的,本申请可以提供给驾驶员定转向比模式和自定义转向比模式中的至少一种转向比设置模式。当不需要对车辆转向比进行调整时,驾驶员可以选择定转向比模式,需要对车辆转向比进行调整时,驾驶员可以选择自定义转向比模式。In order to further improve the user experience, the method for adjusting the steering ratio of the vehicle provided in the embodiment of the present application can choose whether to adjust the steering ratio of the vehicle before driving according to the needs of the user. Specifically, the present application may provide the driver with at least one steering ratio setting mode among the fixed steering ratio mode and the user-defined steering ratio mode. When the steering ratio of the vehicle does not need to be adjusted, the driver can choose the fixed steering ratio mode, and when the steering ratio of the vehicle needs to be adjusted, the driver can choose the custom steering ratio mode.

示例性的,在一种可能的实现方式中,车辆启动后,车载设备的显示屏可以显示定转向比模式的选择区域和自定义转向比模式的选择区域。在另一种可能的实现方式中,驾驶员可以对车载设备的显示屏中的转向比模式控件进行点击、触摸或长按等触发操作,触发车载设备显示定转向比模式的选择区域和自定义转向比模式的选择区域。之后,驾驶员可以对定转向比模式的选择区域进行点击、触摸或长按等触发操作,车辆转向比的调整装置可以响应于该触发操作启动定转向比模式;或者,驾驶员可以对自定义转向比模式的选择区域进行点击、触摸或长按等触发操作,车辆转向比的调整装置可以响应于该触发操作启动自定义转向比模式。Exemplarily, in a possible implementation manner, after the vehicle is started, the display screen of the vehicle-mounted device may display a selection area for a fixed steering ratio mode and a selection area for a custom steering ratio mode. In another possible implementation, the driver can click, touch, or press and hold the steering ratio mode control on the display screen of the vehicle-mounted device to trigger the vehicle-mounted device to display the selection area of the fixed steering ratio mode and customize the steering ratio mode control. Selection area for steering ratio mode. After that, the driver can click, touch or press and hold the selection area of the fixed steering ratio mode to trigger operations such as, and the vehicle steering ratio adjustment device can start the fixed steering ratio mode in response to the trigger operation; The selection area of the steering ratio mode is triggered by clicking, touching or long pressing, and the steering ratio adjustment device of the vehicle can start the custom steering ratio mode in response to the triggering operation.

图2中的步骤S101至S103与前文描述相同,在此不再赘述。Steps S101 to S103 in FIG. 2 are the same as those described above and will not be repeated here.

通过本实施例,用户可以根据需求选择转向比设置模式。可以选择定转向比模式,也可以选择自定义转向比模式,从而可以在自定义转向比模式下根据自己的需求调整转向比与工况的对应关系。Through this embodiment, the user can select the steering ratio setting mode according to the requirement. You can choose the fixed steering ratio mode or the custom steering ratio mode, so that you can adjust the corresponding relationship between the steering ratio and the working conditions according to your own needs in the custom steering ratio mode.

可选的,如图3所示,在图1的步骤S101之前,本申请实施例提供的车辆转向比的调整方法还可以包括:Optionally, as shown in FIG. 3 , before step S101 in FIG. 1 , the method for adjusting the vehicle steering ratio provided in the embodiment of the present application may further include:

S1003、调用第一数据分析模型,基于驾驶员的用户信息、车辆的车型信息以及车辆在不同工况下的参数信息,确定第二方向盘转角极值。S1003. Invoke the first data analysis model, and determine the second extreme value of the steering wheel angle based on the user information of the driver, the model information of the vehicle, and the parameter information of the vehicle under different working conditions.

S1004、根据第二方向盘转角极值和第三方向盘转角极值,确定方向盘转角极值区间。S1004. According to the second extreme value of the steering wheel angle and the third extreme value of the steering wheel angle, determine the interval of the extreme value of the steering wheel angle.

S1005、显示方向盘转角极值区间和第一提示信息。S1005. Displaying the extreme value interval of the steering wheel rotation angle and the first prompt information.

其中,第一提示信息用于提示驾驶员基于方向盘转角极值区间进行转向操作。Wherein, the first prompt information is used to prompt the driver to perform a steering operation based on the extreme value interval of the steering wheel angle.

为了进一步提升用户体验,本申请实施例提供的车辆转向比的调整方法还可以向用户推荐方向盘转角极值区间,供用户在进行转向操作时参考。示例性的,车载设备在启动自定义转向比模式后,可以确定出方向盘转角极值区间并显示,驾驶员可以参考方向盘转角极值区间,将方向盘转至第一方向盘转角极值。In order to further improve the user experience, the method for adjusting the steering ratio of the vehicle provided in the embodiment of the present application may also recommend the extreme value range of the steering wheel angle to the user for reference when the user performs the steering operation. Exemplarily, after the in-vehicle device starts the custom steering ratio mode, it can determine and display the extreme value range of the steering wheel angle, and the driver can refer to the extreme value range of the steering wheel angle to turn the steering wheel to the first extreme value of the steering wheel angle.

在确定方向盘转角极值区间时,可以调用第一数据分析模型确定第二方向盘转角极值,然后根据参考该第二方向盘转角极值确定方向盘转角极值区间。其中,第一数据分析模型根据第一样本数据得到,第一样本数据中至少包括用户信息、车型信息、参数信息和方向盘转角极值的映射关系。When determining the extreme value interval of the steering wheel angle, the first data analysis model may be invoked to determine the second extreme value of the steering wheel angle, and then the extreme value interval of the steering wheel angle may be determined according to the second extreme value of the steering wheel angle. Wherein, the first data analysis model is obtained according to the first sample data, and the first sample data includes at least the mapping relationship between user information, vehicle type information, parameter information and extreme value of steering wheel angle.

用户信息可以包括身高、臂长以及性别等信息。User information may include information such as height, arm length, and gender.

由于不同身高、不同臂长以及不同性别的人期望的方向盘最大转角一般不同,比如,臂长较长的人期望的方向盘最大转角比臂长较短的人期望的方向盘最大转角相对较大。并且,驾驶员在驾驶不同车型的车辆时,期望的方向盘最大转角一般也不相同。另外,驾驶员在不同工况下驾驶时,期望的方向盘最大转角一般也不相同。所以,本申请实施例可以事先获取不同驾驶员的历史驾驶大数据,然后基于大数据分析算法确定出不同身高、不同臂长以及不同性别的驾驶员在驾驶不同车型的车辆行驶在不同工况下时常用的方向盘转角极值,并以此得到第一数据分析模型。在确定方向盘转角极值区间时,可以将当前驾驶员的身高、臂长以及性别等用户信息以及当前车辆的车型信息和在不同工况下的参数信息输入第一数据分析模型中,确定出第二方向盘转角极值。Because people with different heights, different arm lengths, and different genders generally have different maximum steering wheel angles, for example, the maximum steering wheel angle expected by people with longer arm lengths is relatively larger than that expected by people with shorter arm lengths. Moreover, when a driver drives a vehicle of different models, the desired maximum steering wheel angle is generally different. In addition, when the driver drives under different working conditions, the expected maximum steering wheel angle is generally different. Therefore, in the embodiment of the present application, the historical driving big data of different drivers can be obtained in advance, and then based on the big data analysis algorithm, it can be determined that drivers of different heights, arm lengths, and genders are driving different types of vehicles under different working conditions. The extreme value of the steering wheel angle that is often used is used to obtain the first data analysis model. When determining the extreme value range of the steering wheel angle, user information such as the current driver's height, arm length, and gender, as well as the current vehicle model information and parameter information under different working conditions can be input into the first data analysis model to determine the first data analysis model. 2. Extreme value of steering wheel angle.

另外,为了避免驾驶员在进行转向操作时转向的第一方向盘转角极值超出当前车辆的线控转向系统的能力,在确定方向盘转角极值区间时,还需参考第三方向盘转角极值,该第三方向盘转角极值根据车辆的线控转向系统性能极值确定。示例性的,当第一方向盘转角极值过小,比如为100°,若方向盘从0°转至100°约为0.5秒,则对应的需要车辆的前轮在0.5秒内从0°转至30°,此时转向的执行电机需要较大的输出才能完成这个转向过程克服路面的摩擦力,很多车辆的线控系统的能力将无法满足。所以,在确定方向盘转角极值区间时,需同时参考第三方向盘转角极值和第二方向盘转角极值。In addition, in order to prevent the first extreme value of the steering wheel angle of the driver from exceeding the capability of the steering wheel steering system of the current vehicle during the steering operation, it is necessary to refer to the third extreme value of the steering wheel angle when determining the range of the extreme value of the steering wheel angle. The extreme value of the third steering wheel angle is determined according to the extreme value of the performance of the steer-by-wire system of the vehicle. Exemplarily, when the extreme value of the first steering wheel angle is too small, such as 100°, if the steering wheel turns from 0° to 100° for about 0.5 seconds, then the corresponding front wheels of the vehicle need to turn from 0° to 0° within 0.5 seconds. 30°, at this time, the executive motor of the steering needs a larger output to complete the steering process and overcome the friction of the road surface, and the ability of the wire control system of many vehicles will not be satisfied. Therefore, when determining the extreme value range of the steering wheel angle, it is necessary to refer to the third extreme value of the steering wheel angle and the second extreme value of the steering wheel angle at the same time.

可选的,在一种可能的实现方式中,可以对比第三方向盘转角极值和第二方向盘转角极值的大小,将第二方向盘转角极值和第三方向盘转角极值中数值较小的值确定为方向盘转角极值区间的最大值;并且,将预设方向盘转角确定为方向盘转角极值区间的最小值。Optionally, in a possible implementation manner, the magnitude of the third extreme steering wheel angle and the second extreme steering wheel angle may be compared, and the smaller value of the second extreme steering wheel angle and the third extreme steering wheel angle may be selected. The value is determined as the maximum value of the extreme value interval of the steering wheel angle; and, the preset steering wheel angle is determined as the minimum value of the extreme value interval of the steering wheel angle.

其中,预设方向盘转角极值可以是事先确定的方向盘最大转角。示例性的,预设方向盘转角极值可以为180°,若用A表示第二方向盘转角极值,B表示第三方向盘转角极值,则方向盘转角极值区间可以为(180°,min(A,B))。这样,就可以在满足车辆的线控转向系统的能力的条件下,确定出更符合当前驾驶员需求的方向盘转角极值区间,从而可以进一步提升用户体验。Wherein, the preset extreme steering wheel angle may be a maximum steering wheel angle determined in advance. Exemplarily, the preset extreme value of the steering wheel angle can be 180°, if A represents the second extreme value of the steering wheel angle, and B represents the third extreme value of the steering wheel angle, then the range of the extreme value of the steering wheel angle can be (180°, min(A , B)). In this way, under the condition of satisfying the capability of the steering-by-wire system of the vehicle, an extreme range of the steering wheel angle that is more in line with the current driver's needs can be determined, thereby further improving the user experience.

图3中的步骤S101至S103与前文描述相同,在此不再赘述。Steps S101 to S103 in FIG. 3 are the same as those described above and will not be repeated here.

通过本实施例,可以向用户推荐方向盘转角极值区间,供用户在进行转向操作时参考。该方向盘转角极值区间基于第二方向盘转角极值和第三方向盘转角极值确定。由于第二方向盘转角极值是基于当前驾驶员的身高、臂长以及性别等用户信息以及当前车辆的车型信息和在不同工况下的参数信息确定的,所以,本申请实施例推荐的方向盘转角极值区间更接近用户的实际需求,从而可以进一步提升用户体验。Through this embodiment, the extreme value range of the steering wheel angle can be recommended to the user for reference when the user performs a steering operation. The extreme steering wheel angle interval is determined based on the second extreme steering wheel angle and the third extreme steering wheel angle. Since the second extreme value of the steering wheel angle is determined based on user information such as the current driver's height, arm length, and gender, as well as the current vehicle model information and parameter information under different working conditions, the steering wheel angle recommended by the embodiment of the present application The extreme value interval is closer to the actual needs of users, which can further improve user experience.

可选的,如图4所示,在图1的步骤S102之前,本申请实施例提供的车辆转向比的调整方法还可以包括:Optionally, as shown in FIG. 4 , before step S102 in FIG. 1 , the method for adjusting the vehicle steering ratio provided in the embodiment of the present application may further include:

S1020、基于第一前轮转角极值与工况的对应关系,以及第二前轮转角极值与工况的对应关系,对比不同工况下第一前轮转角极值和第二前轮转角极值的大小,将不同工况下第一前轮转角极值和第二前轮转角极值中数值较小的一个确定为目标前轮转角极值,然后根据不同工况下的目标前轮转角极值得到前轮转角极值与工况的对应关系。S1020. Based on the corresponding relationship between the first extreme value of the front wheel angle and the working condition, and the corresponding relationship between the second extreme value of the front wheel angle and the working condition, compare the first extreme value of the front wheel angle and the second extreme value of the front wheel angle under different working conditions The size of the extreme value, the smaller one of the first front wheel angle extreme value and the second front wheel angle extreme value under different working conditions is determined as the target front wheel angle extreme value, and then according to the target front wheel angle extreme value under different working conditions The extreme value of the rotation angle obtains the corresponding relationship between the extreme value of the front wheel rotation angle and the working condition.

在本申请实施例中,在根据用户需求调整好车辆的转向比后,在车辆行驶过程中,车辆转向比的调整装置将以该转向比为基准,根据驾驶员实时操纵的方向盘转角控制前轮转角。为了避免车辆行驶过程中前轮转角超出当前车辆的线控转向系统的能力,在确定前轮转角极值与工况的对应关系时,还需参考第二前轮转角极值与工况的对应关系。In the embodiment of this application, after the steering ratio of the vehicle is adjusted according to the user's needs, the vehicle steering ratio adjustment device will use the steering ratio as a reference to control the front wheels according to the steering wheel angle manipulated by the driver in real time while the vehicle is running. corner. In order to prevent the front wheel angle from exceeding the capability of the current vehicle's steer-by-wire system when the vehicle is running, when determining the correspondence between the extreme value of the front wheel angle and the working condition, it is also necessary to refer to the correspondence between the second extreme value of the front wheel angle and the working condition relation.

示例性的,第一前轮转角极值与工况的对应关系可以为第一前轮转角极值随车速变化的曲线,横坐标为车速,纵坐标为第一前轮转角极值。第二前轮转角极值与工况的对应关系可以为第二前轮转角极值随车速变化的曲线,横坐标为车速,纵坐标为第二前轮转角极值。可以对齐两个曲线的横坐标,然后将同一横坐标处对应的两个纵坐标中较小的一个确定为目标前轮转角极值,并以该目标前轮转角极值作为新的纵坐标,保持原横坐标不变,得到前轮转角极值随车速的变化的曲线。Exemplarily, the corresponding relationship between the extreme value of the first front wheel rotation angle and the working condition may be a curve of the variation of the first extreme value of the front wheel rotation angle with the vehicle speed, the abscissa is the vehicle speed, and the ordinate is the first extreme value of the front wheel rotation angle. The corresponding relationship between the second extreme value of the front wheel rotation angle and the working condition may be a curve of the variation of the second extreme value of the front wheel rotation angle with the vehicle speed, the abscissa is the vehicle speed, and the ordinate is the second extreme value of the front wheel rotation angle. The abscissas of the two curves can be aligned, and then the smaller one of the two ordinates corresponding to the same abscissa is determined as the extreme value of the target front wheel angle, and the target extreme value of the front wheel angle is used as the new ordinate, Keeping the original abscissa constant, the curve of the extreme value of the front wheel rotation angle changing with the speed of the vehicle is obtained.

其中,不同车速下的第二前轮转角极值可以根据车辆的线控转向系统性能极值得到。但是在实际应用中,由于系统各部件安装时存在安装误差,实际的第二前轮转角极值与线控转向系统的能力给出的参考值之间也存在误差。所以,在实际应用中,可以实测前轮左右转动至最大幅度时的最大转角,将该值作为第二前轮转角极值。另外,长时间的使用会导致系统各部件之间存在磨损,所以可以每隔一段时间实测一次第二前轮转角极值。这样,能够进一步避免车辆行驶过程中前轮转角超出当前车辆的线控系统的能力。Wherein, the extreme value of the second front wheel rotation angle at different vehicle speeds can be obtained according to the extreme value of the performance of the steer-by-wire system of the vehicle. However, in practical applications, due to installation errors in the installation of various components of the system, there is also an error between the actual extreme value of the second front wheel rotation angle and the reference value given by the capability of the steer-by-wire system. Therefore, in practical applications, the maximum rotation angle when the front wheels rotate left and right to the maximum amplitude can be actually measured, and this value can be used as the second extreme value of the front wheel rotation angle. In addition, long-term use will cause wear and tear between the various components of the system, so the extreme value of the second front wheel rotation angle can be measured every once in a while. In this way, it can be further avoided that the front wheel rotation angle exceeds the capability of the current vehicle's control-by-wire system during vehicle running.

图4中的步骤S101至S103与前文描述相同,在此不再赘述。Steps S101 to S103 in FIG. 4 are the same as those described above and will not be repeated here.

本实施例中,由于在确定前轮转角极值与工况的对应关系时,参考了调用第二数据分析模型确定出的第一前轮转角极值与工况的对应关系,所以该前轮转角极值与工况的对应关系接近于用户的实际需求。并且,参考第一前轮转角极值与工况的对应关系,能够确保车辆行驶过程中前轮转角不会超出当前车辆的线控转向系统的能力。In this embodiment, since the corresponding relationship between the extreme value of the front wheel angle and the working condition is determined, the corresponding relationship between the first extreme value of the front wheel angle determined by calling the second data analysis model and the working condition is referred to, so the front wheel The corresponding relationship between the extreme value of the rotation angle and the working condition is close to the actual demand of the user. In addition, referring to the corresponding relationship between the extreme value of the first front wheel angle and the working condition, it can be ensured that the front wheel angle will not exceed the capability of the steering-by-wire system of the current vehicle during driving.

如图5所示,本申请实施例还提供了一种车辆转向比的调整装置,该装置可以包括:获取模块11、确定模块12和调整模块13。As shown in FIG. 5 , the embodiment of the present application also provides a vehicle steering ratio adjustment device, which may include: anacquisition module 11 , adetermination module 12 and anadjustment module 13 .

其中,获取模块11执行上述方法实施例中的S101,确定模块12执行上述方法实施例中的S102,调整模块13执行上述方法实施例中的S103。Wherein, theacquisition module 11 executes S101 in the above method embodiment, thedetermination module 12 executes S102 in the above method embodiment, and theadjustment module 13 executes S103 in the above method embodiment.

具体地,获取模块11用于接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值;Specifically, the obtainingmodule 11 is used to receive the driver's steering operation on the steering wheel, and obtain the first extreme value of the steering wheel angle;

确定模块12,用于基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系;A determiningmodule 12, configured to determine the correspondence between the steering ratio and the working conditions based on the first steering wheel extreme value and in combination with the corresponding relationship between the front wheel extreme value and the working condition;

调整模块13,用于在车辆行驶过程中,基于转向比与工况的对应关系,根据车辆的工况调整车辆的转向比。Theadjustment module 13 is configured to adjust the steering ratio of the vehicle according to the working conditions of the vehicle based on the corresponding relationship between the steering ratio and the working conditions during the running of the vehicle.

可选的,在一种可能的设计方式中,本申请提供的车辆转向比的调整装置还包括:显示模块;Optionally, in a possible design, the device for adjusting the steering ratio of the vehicle provided by the present application further includes: a display module;

确定模块12还用于,在获取模块11获取第一方向盘转角极值之前,调用第一数据分析模型,基于驾驶员的用户信息、车辆的车型信息以及车辆在不同工况下的参数信息,确定第二方向盘转角极值;第一数据分析模型根据第一样本数据得到;第一样本数据中至少包括用户信息、车型信息、参数信息和方向盘转角极值的映射关系;Thedetermination module 12 is also used to call the first data analysis model before theacquisition module 11 acquires the first steering wheel angle extreme value, based on the driver's user information, the vehicle model information and the parameter information of the vehicle under different working conditions to determine The second extreme value of the steering wheel angle; the first data analysis model is obtained according to the first sample data; the first sample data at least includes the mapping relationship between user information, vehicle type information, parameter information and the extreme value of the steering wheel angle;

确定模块12还用于,根据第二方向盘转角极值和第三方向盘转角极值,确定方向盘转角极值区间,第三方向盘转角极值根据车辆的线控转向系统性能极值确定;Thedetermination module 12 is also used to determine the extreme steering wheel angle interval according to the second extreme value of the steering wheel angle and the third extreme value of the steering wheel angle, and the third extreme value of the steering wheel angle is determined according to the extreme value of the performance of the steer-by-wire system of the vehicle;

显示模块,用于显示确定模块12确定的方向盘转角极值区间和第一提示信息;第一提示信息用于提示驾驶员基于方向盘转角极值区间进行转向操作。The display module is configured to display the extreme value interval of the steering wheel angle determined by thedetermination module 12 and the first prompt information; the first prompt information is used to prompt the driver to perform a steering operation based on the extreme value interval of the steering wheel angle.

可选的,在另一种可能的设计方式中,确定模块12具体用于:Optionally, in another possible design manner, thedetermination module 12 is specifically used for:

对比第三方向盘转角极值和第二方向盘转角极值的大小,将第二方向盘转角极值和第三方向盘转角极值中数值较小的值确定为方向盘转角极值区间的最大值;并且,将预设方向盘转角确定为方向盘转角极值区间的最小值。Comparing the magnitudes of the third extreme steering wheel angle and the second extreme steering wheel angle, determining the smaller value of the second extreme steering wheel angle and the third extreme steering wheel angle as the maximum value of the extreme range of steering wheel angles; and, The preset steering wheel angle is determined as the minimum value of the extreme value interval of the steering wheel angle.

可选的,在另一种可能的设计方式中,确定模块12还用于:Optionally, in another possible design manner, the determiningmodule 12 is also used for:

在确定转向比与工况的对应关系之前,调用第二数据分析模型,基于车辆的车型信息和车辆在不同工况下的参数信息,确定第一前轮转角极值与工况的对应关系;第二数据分析模型根据第二样本数据得到;第二样本数据中至少包括车型信息、参数信息、工况和前轮转角极值的映射关系;Before determining the corresponding relationship between the steering ratio and the working condition, the second data analysis model is called to determine the corresponding relationship between the extreme value of the first front wheel rotation angle and the working condition based on the vehicle model information and the parameter information of the vehicle under different working conditions; The second data analysis model is obtained according to the second sample data; the second sample data includes at least the mapping relationship between vehicle type information, parameter information, working conditions and extreme values of front wheel rotation angles;

根据第一前轮转角极值与工况的对应关系,结合第二前轮转角极值与工况的对应关系,确定前轮转角极值与工况的对应关系;第二前轮转角极值与工况的对应关系根据车辆的线控转向系统性能极值确定。According to the corresponding relationship between the first extreme value of the front wheel angle and the working condition, combined with the corresponding relationship between the second extreme value of the front wheel angle and the working condition, determine the corresponding relationship between the extreme value of the front wheel angle and the working condition; the second extreme value of the front wheel angle The corresponding relationship with the working conditions is determined according to the performance extreme value of the steer-by-wire system of the vehicle.

可选的,在另一种可能的设计方式中,确定模块12具体用于:Optionally, in another possible design manner, thedetermination module 12 is specifically used for:

基于第一前轮转角极值与工况的对应关系,以及第二前轮转角极值与工况的对应关系,对比不同工况下第一前轮转角极值和第二前轮转角极值的大小,将不同工况下第一前轮转角极值和第二前轮转角极值中数值较小的值确定为目标前轮转角极值,得到前轮转角极值与工况的对应关系。Based on the corresponding relationship between the first extreme value of the front wheel angle and the working condition, and the corresponding relationship between the second extreme value of the front wheel angle and the working condition, compare the first extreme value of the front wheel angle and the second extreme value of the front wheel angle under different working conditions The size of the first front wheel angle extreme value and the second front wheel angle extreme value under different working conditions is determined as the smaller value of the target front wheel angle extreme value, and the corresponding relationship between the front wheel angle extreme value and the working condition is obtained .

可选的,在另一种可能的设计方式中,本申请提供的车辆转向比的调整装置还可以包括更新模块:Optionally, in another possible design, the device for adjusting the steering ratio of the vehicle provided by the present application may also include an update module:

获取模块11,还用于在车辆行驶过程中,采集行驶数据;行驶数据至少包括工况和前轮转角极值;Theacquisition module 11 is also used to collect driving data during the driving process of the vehicle; the driving data includes at least the operating conditions and the extreme value of the front wheel angle;

更新模块,用于在采集到的行驶数据满足预设条件的情况下,以行驶数据更新第二样本数据,并根据更新后的第二样本数据重新得到第二数据分析模型。The updating module is used to update the second sample data with the driving data when the collected driving data satisfies the preset condition, and re-obtain the second data analysis model according to the updated second sample data.

可选的,在另一种可能的设计方式中,本申请提供的车辆转向比的调整装置还可以包括显示模块和启动模块:Optionally, in another possible design, the device for adjusting the steering ratio of the vehicle provided by the present application may also include a display module and a start module:

显示模块,用于在获取模块11获取第一方向盘转角极值之前,显示转向比设置模式,转向比设置模式包括以下至少一项:定转向比模式和自定义转向比模式;The display module is used to display the steering ratio setting mode before theacquisition module 11 acquires the extreme value of the first steering wheel angle, and the steering ratio setting mode includes at least one of the following: a fixed steering ratio mode and a custom steering ratio mode;

启动模块,用于接收驾驶员对自定义转向比模式的触发操作,启动自定义转向比模式。The starting module is configured to receive a driver's trigger operation on the custom steering ratio mode, and start the custom steering ratio mode.

可选的,在另一种可能的设计方式中,本申请提供的车辆转向比的调整装置还可以包括判断模块和启动模块;Optionally, in another possible design, the device for adjusting the steering ratio of the vehicle provided by the present application may also include a judging module and a starting module;

启动模块还用于,接收驾驶员对虚拟驾驶控件的触发操作,启动虚拟驾驶模式;The starting module is also used to receive the driver's trigger operation on the virtual driving control to start the virtual driving mode;

调整模块13还用于,在虚拟驾驶过程中,基于转向比与工况的对应关系,根据驾驶员对方向盘的操作显示不同工况下车辆的运动状态;Theadjustment module 13 is also used to display the motion state of the vehicle under different working conditions according to the driver's operation on the steering wheel based on the corresponding relationship between the steering ratio and the working conditions during the virtual driving process;

判断模块,用于虚拟驾驶结束之后,判断是否接收到驾驶员调整转向比的指令;若是,则显示转向比设置模式,重新确定转向比与工况的对应关系;若否,将转向比与工况的对应关系应用于车辆,并退出转向比设置模式。The judging module is used to judge whether the driver has received an instruction to adjust the steering ratio after the virtual driving is over; The corresponding relationship to the situation is applied to the vehicle, and the steering ratio setting mode is exited.

可选的,车辆转向比的调整装置还可以包括存储模块,存储模块用于存储该车辆转向比的调整装置的程序代码等。Optionally, the device for adjusting the steering ratio of the vehicle may further include a storage module, and the storage module is used for storing program codes of the device for adjusting the steering ratio of the vehicle.

如图6所示,本申请实施例还提供一种车辆转向比的调整装置,包括存储器41、处理器42(42-1和42-2)、总线43和通信接口44;存储器41用于存储计算机执行指令,处理器42与存储器41通过总线43连接;当车辆转向比的调整装置运行时,处理器42执行存储器41存储的计算机执行指令,以使车辆转向比的调整装置执行如上述实施例提供的车辆转向比的调整方法。As shown in Figure 6, the embodiment of the present application also provides a vehicle steering ratio adjustment device, including amemory 41, a processor 42 (42-1 and 42-2), abus 43 and acommunication interface 44; thememory 41 is used to store The computer executes the instructions, and the processor 42 is connected to thememory 41 through thebus 43; when the vehicle steering ratio adjustment device is running, the processor 42 executes the computer execution instructions stored in thememory 41, so that the vehicle steering ratio adjustment device performs as in the above-mentioned embodiment. A method for adjusting the steering ratio of the vehicle is provided.

在具体的实现中,作为一种实施例,处理器42可以包括一个或多个中央处理器(central processing unit,CPU),例如图6中所示的CPU0和CPU1。且作为一种实施例,车辆转向比的调整装置可以包括多个处理器42,例如图6中所示的处理器42-1和处理器42-2。这些处理器42中的每一个CPU可以是一个单核处理器(single-CPU),也可以是一个多核处理器(multi-CPU)。这里的处理器42可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。In a specific implementation, as an embodiment, the processor 42 may include one or more central processing units (central processing unit, CPU), such as CPU0 and CPU1 shown in FIG. 6 . And as an embodiment, the device for adjusting the steering ratio of the vehicle may include multiple processors 42, such as the processor 42-1 and the processor 42-2 shown in FIG. 6 . Each CPU in these processors 42 may be a single-core processor (single-CPU), or a multi-core processor (multi-CPU). Processor 42 herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

存储器41可以是只读存储器41(read-only memory,ROM)或可存储静态信息和指令的其他类型的静态存储设备,随机存取存储器(random access memory,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory,EEPROM)、只读光盘(compactdisc read-only memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器41可以是独立存在,通过总线43与处理器42相连接。存储器41也可以和处理器42集成在一起。Memory 41 can be read-only memory 41 (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM) or other types that can store information and instructions Type of dynamic storage device, also can be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), read-only disc (compactdisc read-only memory, CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be programmed by a computer Any other medium accessed, but not limited to. Thememory 41 may exist independently, and is connected to the processor 42 through thebus 43 . Thememory 41 can also be integrated with the processor 42 .

在具体的实现中,存储器41,用于存储本申请中的数据和执行本申请的软件程序对应的计算机执行指令。处理器42可以通过运行或执行存储在存储器41内的软件程序,以及调用存储在存储器41内的数据,车辆转向比的调整装置的各种功能。In a specific implementation, thememory 41 is used to store the data in this application and the computer-executed instructions corresponding to executing the software program of this application. The processor 42 can run or execute the software program stored in thememory 41 and call the data stored in thememory 41 to perform various functions of the vehicle steering ratio adjusting device.

通信接口44,使用任何收发器一类的装置,用于与其他设备或通信网络通信,如控制系统、无线接入网(radio access network,RAN),无线局域网(wireless local areanetworks,WLAN)等。通信接口44可以包括接收单元实现接收功能,以及发送单元实现发送功能。Thecommunication interface 44 uses any device such as a transceiver for communicating with other devices or communication networks, such as control systems, radio access networks (radio access network, RAN), wireless local area networks (wireless local area networks, WLAN) and so on. Thecommunication interface 44 may include a receiving unit to implement a receiving function, and a sending unit to implement a sending function.

总线43,可以是工业标准体系结构(industry standard architecture,ISA)总线、外部设备互连(peripheral component interconnect,PCI)总线或扩展工业标准体系结构(extended industry standard architecture,EISA)总线等。该总线43可以分为地址总线、数据总线、控制总线等。为便于表示,图6中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。Thebus 43 may be an industry standard architecture (industry standard architecture, ISA) bus, a peripheral component interconnect (PCI) bus, or an extended industry standard architecture (extended industry standard architecture, EISA) bus, etc. Thebus 43 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 6 , but it does not mean that there is only one bus or one type of bus.

作为一个示例,结合图5,车辆转向比的调整装置中的获取模块实现的功能与图6中的接收单元实现的功能相同,车辆转向比的调整装置中的确定模块实现的功能与图6中的处理器实现的功能相同,车辆转向比的调整装置中的存储模块实现的功能与图6中的存储器实现的功能相同。As an example, with reference to Fig. 5, the functions realized by the acquisition module in the vehicle steering ratio adjustment device are the same as those realized by the receiving unit in Fig. 6, and the functions realized by the determination module in the vehicle steering ratio adjustment device are the same as those in Fig. 6 The functions realized by the processor are the same, and the functions realized by the memory module in the vehicle steering ratio adjustment device are the same as those realized by the memory in FIG. 6 .

本实施例中相关内容的解释可参考上述方法实施例,此处不再赘述。For the explanation of relevant content in this embodiment, reference may be made to the foregoing method embodiment, and details are not repeated here.

通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated according to needs It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the above-described system, device, and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not repeated here.

本申请实施例还提供一种计算机可读存储介质,计算机可读存储介质中存储有指令,当计算机执行该指令时,使得计算机执行上述实施例提供的车辆转向比的调整方法。The embodiment of the present application also provides a computer-readable storage medium, and instructions are stored in the computer-readable storage medium. When the computer executes the instructions, the computer executes the method for adjusting the steering ratio of the vehicle provided in the above-mentioned embodiments.

其中,计算机可读存储介质,例如可以是但不限于电、磁、光、电磁、红外线、或半导体的系统、装置或器件,或者任意以上的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括:具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、RAM、ROM、可擦式可编程只读存储器(erasable programmable read only memory,EPROM)、寄存器、硬盘、光纤、CD-ROM、光存储器件、磁存储器件、或者上述的任意合适的组合、或者本领域熟知的任何其它形式的计算机可读存储介质。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于特定用途集成电路(application specificintegrated circuit,ASIC)中。在本申请实施例中,计算机可读存储介质可以是任何包含或存储程序的有形介质,该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。Wherein, the computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more conductors, portable computer disks, hard disks, RAM, ROM, erasable programmable read-only memory (erasable programmable read-only memory) read only memory, EPROM), register, hard disk, optical fiber, CD-ROM, optical storage device, magnetic storage device, or any suitable combination of the above, or any other form of computer-readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may be located in an application specific integrated circuit (ASIC). In the embodiments of the present application, a computer-readable storage medium may be any tangible medium containing or storing a program, and the program may be used by or in combination with an instruction execution system, device or device.

以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应该以权利要求的保护范围为准。The above is only a specific implementation of the application, but the protection scope of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application should be covered within the protection scope of the application . Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (11)

Translated fromChinese
1.一种车辆转向比的调整方法,其特征在于,包括:1. A method for adjusting the steering ratio of a vehicle, comprising:显示方向盘转角极值区间和第一提示信息;所述第一提示信息用于提示驾驶员基于所述方向盘转角极值区间进行转向操作;所述方向盘转角极值区间根据第二方向盘转角极值和第三方向盘转角极值确定;所述第二方向盘转角极值根据所述驾驶员的用户信息、车辆的车型信息以及所述车辆在不同工况下的参数信息确定;所述第三方向盘转角极值根据所述车辆的线控转向系统性能极值确定;Displaying the extreme value interval of the steering wheel angle and the first prompt information; the first prompt information is used to prompt the driver to perform a steering operation based on the extreme value interval of the steering wheel angle; the extreme value interval of the steering wheel angle is based on the second extreme value of the steering wheel angle and The third extreme value of the steering wheel angle is determined; the second extreme value of the steering wheel angle is determined according to the user information of the driver, the model information of the vehicle, and the parameter information of the vehicle under different working conditions; the third extreme value of the steering wheel angle is determined. The value is determined according to the extreme value of the steer-by-wire system performance of the vehicle;接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值;Receive the driver's steering operation on the steering wheel, and obtain the extreme value of the first steering wheel angle;基于所述第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系;Based on the extreme value of the first steering wheel angle, combined with the corresponding relationship between the extreme value of the front wheel angle and the working condition, determine the corresponding relationship between the steering ratio and the working condition;在车辆行驶过程中,基于所述转向比与工况的对应关系,根据所述车辆的工况调整所述车辆的转向比。During the running of the vehicle, the steering ratio of the vehicle is adjusted according to the working condition of the vehicle based on the corresponding relationship between the steering ratio and the working condition.2.根据权利要求1所述的车辆转向比的调整方法,其特征在于,所述显示方向盘转角极值区间和第一提示信息之前,所述方法还包括:2. The method for adjusting the vehicle steering ratio according to claim 1, characterized in that, before the display of the steering wheel angle extreme value interval and the first prompt information, the method further comprises:调用第一数据分析模型,基于所述驾驶员的用户信息、所述车辆的车型信息以及所述车辆在不同工况下的参数信息,确定所述第二方向盘转角极值;所述第一数据分析模型根据第一样本数据得到;所述第一样本数据中至少包括用户信息、车型信息、参数信息和方向盘转角极值的映射关系;Invoking the first data analysis model, based on the user information of the driver, the vehicle model information and the parameter information of the vehicle under different working conditions, determine the second extreme value of the steering wheel angle; the first data The analysis model is obtained according to the first sample data; the first sample data includes at least the mapping relationship between user information, vehicle type information, parameter information and extreme value of steering wheel angle;根据所述第二方向盘转角极值和所述第三方向盘转角极值,确定所述方向盘转角极值区间。The range of extreme steering wheel angles is determined according to the second extreme value of steering wheel angle and the third extreme value of steering wheel angle.3.根据权利要求2所述的车辆转向比的调整方法,其特征在于,所述根据所述第二方向盘转角极值和所述第三方向盘转角极值,确定所述方向盘转角极值区间,包括:3. The method for adjusting the steering ratio of a vehicle according to claim 2, characterized in that, according to the second extreme value of the steering wheel angle and the third extreme value of the steering wheel angle, the interval of the extreme value of the steering wheel angle is determined, include:对比所述第三方向盘转角极值和所述第二方向盘转角极值的大小,将所述第二方向盘转角极值和所述第三方向盘转角极值中数值较小的值确定为所述方向盘转角极值区间的最大值;并且,将预设方向盘转角确定为所述方向盘转角极值区间的最小值。Comparing the third extreme value of steering wheel angle with the second extreme value of steering wheel angle, determining the smaller value of the second extreme value of steering wheel angle and the third extreme value of steering wheel angle as the value of the steering wheel The maximum value of the extreme value interval of the steering wheel; and, determining the preset steering wheel angle as the minimum value of the extreme value interval of the steering wheel angle.4.根据权利要求1所述的车辆转向比的调整方法,其特征在于,所述基于所述第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系之前,所述方法还包括:4. The method for adjusting the steering ratio of a vehicle according to claim 1, characterized in that, based on the extreme value of the first steering wheel angle and in combination with the corresponding relationship between the extreme value of the front wheel angle and the working condition, the steering ratio and the working condition are determined. Before the corresponding relationship of the situation, the method also includes:调用第二数据分析模型,基于所述车辆的车型信息和所述车辆在不同工况下的参数信息,确定第一前轮转角极值与工况的对应关系;所述第二数据分析模型根据第二样本数据得到;所述第二样本数据中至少包括车型信息、参数信息、工况和前轮转角极值的映射关系;calling the second data analysis model, based on the vehicle model information and the parameter information of the vehicle under different working conditions, to determine the corresponding relationship between the first front wheel angle extremum and the working conditions; the second data analysis model according to Obtaining the second sample data; the second sample data includes at least the mapping relationship of vehicle type information, parameter information, working conditions and extreme values of front wheel rotation angles;根据所述第一前轮转角极值与工况的对应关系,结合第二前轮转角极值与工况的对应关系,确定所述前轮转角极值与工况的对应关系;所述第二前轮转角极值与工况的对应关系根据所述车辆的线控转向系统性能极值确定。According to the corresponding relationship between the first extreme value of the front wheel angle and the working condition, combined with the corresponding relationship between the second extreme value of the front wheel angle and the working condition, determine the corresponding relationship between the extreme value of the front wheel angle and the working condition; The corresponding relationship between the extreme values of the two front wheel rotation angles and the working conditions is determined according to the extreme values of the performance of the steer-by-wire system of the vehicle.5.根据权利要求4所述的车辆转向比的调整方法,其特征在于,所述根据所述第一前轮转角极值与工况的对应关系,结合第二前轮转角极值与工况的对应关系,确定所述前轮转角极值与工况的对应关系,包括:5. The method for adjusting the steering ratio of a vehicle according to claim 4, characterized in that, according to the corresponding relationship between the first extreme value of the front wheel angle and the working condition, combining the second extreme value of the front wheel angle with the working condition The corresponding relationship between the extreme value of the front wheel angle and the working condition is determined, including:基于所述第一前轮转角极值与工况的对应关系,以及所述第二前轮转角极值与工况的对应关系,对比不同工况下所述第一前轮转角极值和所述第二前轮转角极值的大小,将不同工况下所述第一前轮转角极值和所述第二前轮转角极值中数值较小的值确定为目标前轮转角极值,得到所述前轮转角极值与工况的对应关系。Based on the corresponding relationship between the first extreme value of the front wheel angle and the working condition, and the corresponding relationship between the second extreme value of the front wheel angle and the working condition, compare the first extreme value of the front wheel angle and the corresponding relationship under different working conditions. The size of the second extreme value of front wheel angle, the smaller value of the first extreme value of front wheel angle and the second extreme value of front wheel angle under different working conditions is determined as the target extreme value of front wheel angle, The corresponding relationship between the extreme value of the front wheel rotation angle and the working condition is obtained.6.根据权利要求4所述的车辆转向比的调整方法,其特征在于,所述方法还包括:6. The method for adjusting the vehicle steering ratio according to claim 4, characterized in that the method further comprises:在车辆行驶过程中,采集行驶数据;所述行驶数据至少包括工况和前轮转角极值;During the running of the vehicle, collect driving data; the driving data includes at least working conditions and front wheel angle extreme values;在采集到的所述行驶数据满足预设条件的情况下,以所述行驶数据更新所述第二样本数据,并根据更新后的所述第二样本数据重新得到第二数据分析模型。In a case where the collected driving data satisfies a preset condition, the driving data is used to update the second sample data, and a second data analysis model is newly obtained according to the updated second sample data.7.根据权利要求1所述的车辆转向比的调整方法,其特征在于,所述接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值之前,所述方法还包括:7. The method for adjusting the steering ratio of a vehicle according to claim 1, wherein the method further comprises:显示转向比设置模式,所述转向比设置模式包括以下至少一项:定转向比模式和自定义转向比模式;Displaying a steering ratio setting mode, the steering ratio setting mode includes at least one of the following: a fixed steering ratio mode and a custom steering ratio mode;接收所述驾驶员对自定义转向比模式的触发操作,启动自定义转向比模式。The driver's trigger operation on the customized steering ratio mode is received, and the customized steering ratio mode is started.8.根据权利要求1-7任意一项所述的车辆转向比的调整方法,其特征在于,所述确定转向比与工况的对应关系之后,所述方法还包括:8. The method for adjusting the steering ratio of a vehicle according to any one of claims 1-7, characterized in that, after determining the correspondence between the steering ratio and the working conditions, the method further comprises:接收所述驾驶员对虚拟驾驶控件的触发操作,启动虚拟驾驶模式;receiving the driver's trigger operation on the virtual driving control, and starting the virtual driving mode;在虚拟驾驶过程中,基于所述转向比与工况的对应关系,根据所述驾驶员对方向盘的操作显示不同工况下所述车辆的运动状态;During the virtual driving process, based on the corresponding relationship between the steering ratio and the working conditions, the motion state of the vehicle under different working conditions is displayed according to the driver's operation on the steering wheel;虚拟驾驶结束之后,判断是否接收到所述驾驶员调整所述转向比的指令;After the virtual driving ends, it is judged whether an instruction from the driver to adjust the steering ratio is received;若是,则显示转向比设置模式,重新确定转向比与工况的对应关系;If yes, display the steering ratio setting mode, and re-determine the corresponding relationship between the steering ratio and the working condition;若否,将所述转向比与工况的对应关系应用于所述车辆,并退出所述转向比设置模式。If not, apply the corresponding relationship between the steering ratio and the working condition to the vehicle, and exit the steering ratio setting mode.9.一种车辆转向比的调整装置,其特征在于,包括:9. A vehicle steering ratio adjustment device, characterized in that it comprises:显示模块,用于显示方向盘转角极值区间和第一提示信息;所述第一提示信息用于提示驾驶员基于所述方向盘转角极值区间进行转向操作;所述方向盘转角极值区间根据第二方向盘转角极值和第三方向盘转角极值确定;所述第二方向盘转角极值根据所述驾驶员的用户信息、车辆的车型信息以及所述车辆在不同工况下的参数信息确定;所述第三方向盘转角极值根据所述车辆的线控转向系统性能极值确定;The display module is used to display the extreme value interval of the steering wheel angle and the first prompt information; the first prompt information is used to prompt the driver to perform a steering operation based on the extreme value interval of the steering wheel angle; the extreme value interval of the steering wheel angle is based on the second The extreme value of steering wheel angle and the third extreme value of steering wheel angle are determined; the second extreme value of steering wheel angle is determined according to the user information of the driver, the vehicle model information and the parameter information of the vehicle under different working conditions; the The extreme value of the third steering wheel angle is determined according to the extreme value of the performance of the steer-by-wire system of the vehicle;接收模块,用于接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值;The receiving module is configured to receive the driver's steering operation on the steering wheel, and obtain the first extreme value of the steering wheel angle;确定模块,用于基于所述第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系;A determining module, configured to determine the correspondence between the steering ratio and the working conditions based on the first extreme value of the steering wheel angle and in combination with the corresponding relationship between the extreme value of the front wheel rotation angle and the working condition;调整模块,用于在车辆行驶过程中,基于所述转向比与工况的对应关系,根据所述车辆的工况调整所述车辆的转向比。An adjustment module, configured to adjust the steering ratio of the vehicle according to the working conditions of the vehicle based on the corresponding relationship between the steering ratio and the working conditions during the running of the vehicle.10.一种车辆转向比的调整装置,其特征在于,包括存储器、处理器、总线和通信接口;所述存储器用于存储计算机执行指令,所述处理器与所述存储器通过所述总线连接;10. A vehicle steering ratio adjustment device, characterized in that it includes a memory, a processor, a bus and a communication interface; the memory is used to store computer-executable instructions, and the processor and the memory are connected through the bus;当所述车辆转向比的调整装置运行时,处理器执行所述存储器存储的所述计算机执行指令,以使所述车辆转向比的调整装置执行如权利要求1-8任意一项所述的车辆转向比的调整方法。When the device for adjusting the steering ratio of the vehicle is running, the processor executes the computer-executed instructions stored in the memory, so that the device for adjusting the steering ratio of the vehicle executes the vehicle according to any one of claims 1-8. How to adjust the steering ratio.11.一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有指令,当计算机执行所述指令时,使得所述计算机执行如权利要求1-8任意一项所述的车辆转向比的调整方法。11. A computer-readable storage medium, characterized in that instructions are stored in the computer-readable storage medium, and when the computer executes the instructions, the computer executes the computer according to any one of claims 1-8. The adjustment method of vehicle steering ratio.
CN202111271017.7A2021-10-292021-10-29 Vehicle Steering Ratio Adjustment Method, Device and Storage MediumActiveCN113895518B (en)

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