CN201559616U - vehicle anti-theft system - Google Patents

Abstract

Translated fromChinese

本实用新型提供了一种车辆防盗系统，包括车身控制模块、发动机控制模块、启动按钮以及无钥匙控制模块；车身控制模块根据启动按钮的启动信号驱动无钥匙控制模块探测智能钥匙；发动机控制模块在上电后向无钥匙控制模块发送验证码，在收到无钥匙控制模块反馈的验证码后进行对码，根据对码的结果解除或保持发动机防盗状态；无钥匙控制模块在收到发动机控制模块发出的验证码后判断上电时是否探测到了合法的智能钥匙，在探测到合法的智能钥匙的情况下，对发动机控制模块发送的验证码进行验证，并反馈无钥匙控制模块自己的验证码。本实用新型的车辆防盗系统安全性高，降低了车辆被盗的风险。

The utility model provides a vehicle anti-theft system, comprising a vehicle body control module, an engine control module, a start button and a keyless control module; the vehicle body control module drives the keyless control module to detect an intelligent key according to the start signal of the start button; After power-on, send a verification code to the keyless control module, perform code verification after receiving the verification code fed back by the keyless control module, and release or maintain the engine anti-theft status according to the result of the code verification; the keyless control module receives the engine control module After the verification code is sent, it is judged whether a legal smart key is detected when the power is turned on. If a legal smart key is detected, the verification code sent by the engine control module is verified, and the verification code of the keyless control module is fed back. The vehicle anti-theft system of the utility model has high safety and reduces the risk of the vehicle being stolen.

Description

Translated fromChinese

车辆防盗系统vehicle anti-theft system

技术领域technical field

本实用新型涉及一种车辆防盗系统。The utility model relates to a vehicle anti-theft system.

背景技术Background technique

随着人们对车辆安全性要求的提高，车辆防盗技术应运而生。具有防盗功能的车辆，即使能够进入车辆内，没有取得合法验证，也无法将车辆启动。这样大大提高了车辆安全性，降低被盗的风险。目前的车辆防盗系统通常设置有车身控制模块、发动机控制模块、无钥匙控制模块以及与其对应的起动按钮，按下起动按钮，起动按钮向车身控制模块发出起动信号，车身控制模块根据起动信号向无钥匙控制模块发出身份验证请求，以进行智能钥匙的身份验证；如果智能钥匙合法，则车身控制模块向发动机控制模块发送起动确认请求，并根据发动机控制模块发出的允许起动信号启动起动机运行，当发动机转速达到起动要求时，发动机控制模块就会控制发动机喷油点火，发动机就会被起动。上述的车辆防盗系统中，当发动机转速达到起动要求时，发动机控制模块就会控制发动机喷油点火，一些专业小偷只需要通过某些方法使起动机上电即可完成发动机的起动，因此此防盗系统安全性较低。With the improvement of people's requirements for vehicle safety, vehicle anti-theft technology has emerged as the times require. Even if a vehicle with anti-theft function can enter the vehicle, it cannot be started without legal verification. This greatly improves vehicle security and reduces the risk of theft. The current vehicle anti-theft system is usually provided with a vehicle body control module, an engine control module, a keyless control module and a start button corresponding thereto. The key control module sends an identity verification request to verify the identity of the smart key; if the smart key is legal, the body control module sends a start confirmation request to the engine control module, and starts the starter to run according to the permission start signal sent by the engine control module. When the engine speed reaches the starting requirement, the engine control module will control the fuel injection and ignition of the engine, and the engine will be started. In the vehicle anti-theft system mentioned above, when the engine speed reaches the starting requirement, the engine control module will control the fuel injection and ignition of the engine. Some professional thieves only need to power on the starter through some methods to complete the engine start. Therefore, the anti-theft system Less security.

实用新型内容Utility model content

本实用新型所要解决的技术问题是提供一种安全性较高的车辆防盗系统，该车辆防盗系统的发动机控制模块与无钥匙控制模块之间需要对码成功后才能解除发动机的防盗状态。The technical problem to be solved by the utility model is to provide a vehicle anti-theft system with high security. The engine control module and the keyless control module of the vehicle anti-theft system need to be coded successfully before the anti-theft state of the engine can be released.

本实用新型通过以下技术方案实现：一种车辆防盗系统，包括控制为整车电子零部件供电的车身控制模块、控制发动机喷油点火的发动机控制模块、与车身控制模块相连的启动按钮以及验证智能钥匙合法性的无钥匙控制模块；所述车身控制模块，根据启动按钮的启动信号驱动无钥匙控制模块探测智能钥匙，并控制为整车电子零部件供电；所述发动机控制模块，在上电后向无钥匙控制模块发送验证码，等待无钥匙控制模块反馈验证码，并且在收到无钥匙控制模块反馈的验证码后，进行对码，并根据对码的结果解除或保持发动机防盗状态；所述无钥匙控制模块，在收到发动机控制模块发出的验证码后，则判断上电时是否探测到了合法的智能钥匙，若探测到了合法的智能钥匙，则对发动机控制模块发送的验证码进行验证，并反馈无钥匙控制模块自己的验证码给发动机控制模块；若上电时无钥匙控制模块未探测到合法的智能钥匙，则无钥匙控制模块不对发动机控制模块发送的验证码进行验证，且不会反馈无钥匙控制模块自己的验证码。The utility model is realized through the following technical proposals: a vehicle anti-theft system, including a vehicle body control module that controls power supply for electronic components of the vehicle, an engine control module that controls engine fuel injection and ignition, a start button connected to the vehicle body control module, and a verification intelligence key legality keyless control module; the body control module drives the keyless control module to detect the smart key according to the start signal of the start button, and controls the power supply for the electronic parts of the vehicle; the engine control module, after power-on Send a verification code to the keyless control module, wait for the feedback of the verification code from the keyless control module, and perform code verification after receiving the verification code fed back from the keyless control module, and release or maintain the engine anti-theft status according to the result of the code verification; The above-mentioned keyless control module, after receiving the verification code sent by the engine control module, then judges whether a legal smart key has been detected when the power is turned on, and if a legal smart key is detected, then verify the verification code sent by the engine control module , and feed back the verification code of the keyless control module to the engine control module; if the keyless control module does not detect a legal smart key when the power is turned on, the keyless control It will feed back the verification code of the keyless control module.

根据本实用新型的车辆防盗系统，即使发动机转速达到启动要求，当发动机控制模块与无钥匙控制模块之间对码不成功时依然无法解除发动机的防盗状态，发动机不会喷油点火，因此无法启动发动机，大大降低了车辆被盗的风险。According to the vehicle anti-theft system of the present invention, even if the engine speed reaches the starting requirement, when the code matching between the engine control module and the keyless control module fails, the anti-theft state of the engine cannot be released, and the engine will not inject fuel and ignite, so it cannot be started engine, greatly reducing the risk of vehicle theft.

附图说明Description of drawings

图1是本实用新型一个实施例提供的车辆防盗系统的示意图。Fig. 1 is a schematic diagram of a vehicle anti-theft system provided by an embodiment of the present invention.

具体实施方式Detailed ways

为了使本实用新型所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

如图1所示，根据本实用新型的车辆防盗系统包括控制为整车电子零部件供电的车身控制模块1、控制发动机喷油点火的发动机控制模块2、与车身控制模块1相连的启动按钮3以及验证智能钥匙4合法性的无钥匙控制模块5。As shown in Figure 1, the vehicle anti-theft system according to the present invention includes a vehicle body control module 1 that controls the power supply for the electronic components of the vehicle, an engine control module 2 that controls engine fuel injection and ignition, and a start button 3 that is connected to the vehicle body control module 1 And a keyless control module 5 for verifying the legitimacy of the smart key 4 .

所述车身控制模块1，根据启动按钮3的启动信号驱动无钥匙控制模块5探测智能钥匙，并控制为整车电子零部件供电。The vehicle body control module 1 drives the keyless control module 5 to detect the smart key according to the start signal of the start button 3, and controls to supply power to the electronic components of the vehicle.

所述发动机控制模块2，在上电后向无钥匙控制模块5发送验证码，等待无钥匙控制模块5反馈验证码，并且在收到无钥匙控制模块5反馈的验证码后，进行对码，并根据对码的结果解除或保持发动机防盗状态；本实施例中，所述发动机控制模块2本身有发动机防盗和非发动机防盗两种状态，当发动机控制模块2处于非发动机防盗状态时，如果发动机转速达到启动要求，则发动机控制模块2控制发动机喷油点火，这时发动机即可启动；当发动机控制模块2处于发动机防盗状态时，即使发动机转速达到启动要求，发动机控制模块2也不会控制发动机喷油点火，发动机不会启动。The engine control module 2 sends a verification code to the keyless control module 5 after being powered on, waits for the feedback verification code from the keyless control module 5, and performs code matching after receiving the verification code fed back by the keyless control module 5, And release or keep the engine anti-theft state according to the result of the code; in the present embodiment, the engine control module 2 itself has two states of engine anti-theft and non-engine anti-theft, when the engine control module 2 is in the non-engine anti-theft state, if the engine When the speed reaches the starting requirement, the engine control module 2 controls the fuel injection and ignition of the engine, and the engine can start; when the engine control module 2 is in the engine anti-theft state, even if the engine speed reaches the starting requirement, the engine control module 2 will not control the The fuel injection ignites, the engine will not start.

所述无钥匙控制模块5，在收到发动机控制模块2发出的验证码后，则判断上电时是否探测到了合法的智能钥匙4，若探测到了合法的智能钥匙4，则对发动机控制模块2发送的验证码进行验证，并反馈无钥匙控制模块5自己的验证码给发动机控制模块1；若上电时无钥匙控制模块5未探测到合法的智能钥匙4，则无钥匙控制模块5不对发动机控制模块2发送的验证码进行验证，且不会反馈无钥匙控制模块5自己的验证码。The keyless control module 5, after receiving the verification code sent by the engine control module 2, then judges whether a legal smart key 4 has been detected during power-on, and if a legal smart key 4 has been detected, then the engine control module 2 The verification code sent is verified, and the verification code of the keyless control module 5 is fed back to the engine control module 1; The verification code sent by the control module 2 is verified, and the verification code of the keyless control module 5 will not be fed back.

上述的车身控制模块1、发动机控制模块2及无钥匙控制模块之间通过CAN网络6通信。The above-mentioned vehicle body control module 1 , engine control module 2 and keyless control module communicate through the CAN network 6 .

在本实施例中，所述发动机控制模块2，在上电后将自身存储的密码经过加密运算生成验证码发送给无钥匙控制模块5，并等待无钥匙控制模块5反馈验证码，并且对无钥匙控制模块5反馈的验证码进行相应的解密运算，将解密结果即无钥匙控制模块5中的密码与自己的密码进行对比，并根据对比的结果解除或保持发动机防盗状态；本实施例中，所述发动机控制模块2本身有发动机防盗和非发动机防盗两种状态，当发动机控制模块2处于非发动机防盗状态时，如果发动机转速达到启动要求，则发动机控制模块2控制发动机喷油点火，这时发动机即可启动；当发动机控制模块2处于发动机防盗状态时，即使发动机转速达到启动要求，发动机控制模块2也不会控制发动机喷油点火，发动机不会启动。In this embodiment, the engine control module 2, after being powered on, encrypts the password stored by itself to generate a verification code and sends it to the keyless control module 5, and waits for the keyless control module 5 to feed back the verification code, and sends the verification code to the keyless control module 5. The verification code fed back by the key control module 5 performs a corresponding decryption operation, compares the decryption result, that is, the password in the keyless control module 5, with its own password, and removes or maintains the engine anti-theft state according to the result of the comparison; in this embodiment, The engine control module 2 itself has two states of engine anti-theft and non-engine anti-theft. When the engine control module 2 is in the non-engine anti-theft state, if the engine speed reaches the starting requirement, the engine control module 2 controls the engine fuel injection and ignition. At this time The engine can be started; when the engine control module 2 is in the engine anti-theft state, even if the engine speed reaches the starting requirement, the engine control module 2 will not control the fuel injection and ignition of the engine, and the engine will not start.

所述无钥匙控制模块5，在收到发动机控制模块2发出的验证码后，则判断上电时是否探测到了合法的智能钥匙4，若探测到了合法的智能钥匙4，则对发动机控制模块2发送的验证码进行验证，并将自身存储的密码经过相同的加密运算生成验证码反馈给发动机控制模块2；若上电时无钥匙控制模块5未探测到合法的智能钥匙4，则无钥匙控制模块5不对发动机控制模块发送的验证码进行验证，不对自身存储的密码进行加密运算，不生成验证码。此时发动机无法启动。The keyless control module 5, after receiving the verification code sent by the engine control module 2, then judges whether a legal smart key 4 has been detected during power-on, and if a legal smart key 4 has been detected, then the engine control module 2 The verification code sent is verified, and the password stored by itself is generated through the same encryption operation to generate a verification code and fed back to the engine control module 2; if the keyless control module 5 does not detect a legal smart key 4 when powered on, the keyless control Module 5 does not verify the verification code sent by the engine control module, does not encrypt the password stored by itself, and does not generate a verification code. At this time the engine cannot be started.

本实施例中，对码过程具体如下：在给发动机控制模块2供电后，发动机控制模块2检测到上电后将自身存储的密码经过加密运算生成验证码发送给无钥匙控制模块5，无钥匙控制模块5收到该验证码后，则判断上电时是否探测到了合法的智能钥匙4，若探测到了合法的智能钥匙4，则对发动机控制模块2发送的验证码进行验证，并将自身存储的密码经过相同的加密运算生成验证码反馈给发动机控制模块2，发动机控制模块2收到该验证码后通过对其进行相应的解密运算，将解密结果即无钥匙控制模块2中的密码与自己的密码进行对比，如果相同则对码成功，发动机控制模块2解除发动机防盗状态，并停止发送验证码，此时若发动机的转速达到启动要求，则发动机控制模块2控制发动机喷油点火，发动机启动成功；如果发动机控制模块2没有收到无钥匙控制模块5发出的验证码或收到后没有对码成功，则发动机控制模块2不会解除发动机防盗状态，此时即使发动机的转速达到启动要求，发动机控制模块2也不会控制发动机喷油点火，发动机不启动。In this embodiment, the code matching process is specifically as follows: after power is supplied to the engine control module 2, the engine control module 2 detects that the password stored by itself is encrypted and generated to generate a verification code and sent to the keyless control module 5 after the engine control module 2 is powered on. After the control module 5 receives the verification code, it judges whether a legal smart key 4 has been detected when the power is turned on. If a legal smart key 4 is detected, the verification code sent by the engine control module 2 is verified and stored in itself. The password generated by the same encryption operation is fed back to the engine control module 2 to generate a verification code. After the engine control module 2 receives the verification code, it performs a corresponding decryption operation on it, and the decryption result is the password in the keyless control module 2. If the codes are the same, the code matching is successful, the engine control module 2 releases the engine anti-theft state, and stops sending the verification code. At this time, if the engine speed meets the start requirement, the engine control module 2 controls the engine fuel injection and ignition, and the engine starts Success; if the engine control module 2 does not receive the verification code sent by the keyless control module 5 or does not successfully match the code after receiving it, the engine control module 2 will not release the engine anti-theft state. Even if the engine speed reaches the start requirement, The engine control module 2 also does not control the fuel injection and ignition of the engine, and the engine does not start.

以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型的保护范围之内。The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (4)

1. Vehicle Anti-Theft System, it is characterized in that, comprise the no key control module of the Body control module that is controlled to be the power supply of finished vehicle electronic parts, the engine control module of control driving engine oil spout igniting, the start button that links to each other with Body control module and checking Intelligent key legitimacy;

Described Body control module is surveyed Intelligent key according to the no key control module of actuation signal driving of start button, and is controlled to be the power supply of finished vehicle electronic parts;

Described engine control module, send identifying code in the back that powers on to no key control module, wait for no key control module feedback identifying code, and behind the identifying code of receiving no key control module feedback, carry out sign indicating number, and remove or maintenance engine anti-theft state according to result to sign indicating number;

Described no key control module, after receiving the identifying code that engine control module is sent, then judge and whether detected legal Intelligent key when powering on, if detected legal Intelligent key, then the identifying code that engine control module is sent is verified, and the identifying code of feedback no key control module oneself is given engine control module; Do not have the key control module during if power on and do not detect legal Intelligent key, then do not have the key control module and the identifying code that engine control module sends is not verified, and can not feed back the identifying code of no key control module oneself.

2. Vehicle Anti-Theft System as claimed in claim 1, it is characterized in that, described engine control module has engine anti-theft and non-engine anti-theft two states, when engine control module is in non-engine anti-theft state, if engine speed reaches the startup requirement, then engine control module control driving engine oil spout igniting, at this moment driving engine can start; When engine control module was in the engine anti-theft state, even engine speed reaches the startup requirement, engine control module can not controlled driving engine oil spout igniting yet, and driving engine can not start.

3. Vehicle Anti-Theft System as claimed in claim 1 or 2 is characterized in that, described engine control module identical password with no key control module stored, and two above-mentioned passwords adopt identical encryption and decryption algorithm.

4. Vehicle Anti-Theft System as claimed in claim 3, it is characterized in that, described engine control module, after powering on, the password of self storing is generated identifying code through cryptographic calculation and send to no key control module, wait for no key control module feedback identifying code, and the identifying code to no key control module feedback carries out corresponding decrypt operation, the password that decrypted result is not promptly had in the key control module compares with own password, and removes or maintenance engine anti-theft state according to the result of contrast;

Described no key control module, after receiving the identifying code that engine control module is sent, then judge and whether detected legal Intelligent key when powering on, if detected legal Intelligent key, then the identifying code that engine control module is sent is verified, and the password of self storing is fed back to engine control module through identical cryptographic calculation generation identifying code; Do not have the key control module during if power on and do not detect legal Intelligent key, then do not have the key control module and the identifying code that engine control module sends is not verified, the password of self storing is not carried out cryptographic calculation, do not generate identifying code.