CN110667381A - Standby power supply system for realizing multiple protection of parking controller - Google Patents
Standby power supply system for realizing multiple protection of parking controllerDownload PDFInfo
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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Abstract
Description
Translated fromChinese技术领域technical field
本发明涉及电动汽车驻车控制器领域，尤其是涉及到电动汽车驻车控制器控制安全方面。The invention relates to the field of electric vehicle parking controllers, in particular to the control safety aspect of the electric vehicle parking controllers.
背景技术Background technique
驻车控制器作为电动汽车核心的制动部件，对电动汽车的行车安全起着至关重要的作用，如何保证驻车控制器在所有极限条件下都能正常可靠的工作显得尤为重要。当前很多驻车控制器都不具备驻车控制器备用电源功能，一旦供电电池或线束发生故障，没有其他电源来提供电能，驻车控制器将无法正常工作，这就产生极大的安全问题。目前市场对于行车安全提出了更高的要求，为使驻车控制器更安全可靠，需要为驻车控制器增加相应措施，保障驻车控制器功能安全的设计要求。因此，就需要为驻车控制器提供备用电能，保证驻车控制器在特殊情况下能完成驻车，以此来提高汽车的安全性。As the core braking component of an electric vehicle, the parking controller plays a vital role in the driving safety of the electric vehicle. It is particularly important to ensure that the parking controller can work normally and reliably under all extreme conditions. At present, many parking controllers do not have the backup power function of the parking controller. Once the power supply battery or wiring harness fails, there is no other power source to provide power, and the parking controller will not work normally, which will cause great safety problems. At present, the market has put forward higher requirements for driving safety. In order to make the parking controller safer and more reliable, it is necessary to add corresponding measures to the parking controller to ensure the design requirements of the functional safety of the parking controller. Therefore, it is necessary to provide backup power for the parking controller to ensure that the parking controller can complete the parking under special circumstances, thereby improving the safety of the vehicle.
发明内容SUMMARY OF THE INVENTION
鉴于上述问题，本发明提出了一种实现对驻车控制器多重保护的备用电源系统，以便解决或者至少部分解决上述存在的技术问题。In view of the above problems, the present invention proposes a backup power supply system that realizes multiple protections for the parking controller, so as to solve or at least partially solve the above existing technical problems.
为达到上述目的，本发明的技术方案是这样实现的：In order to achieve the above object, the technical scheme of the present invention is achieved in this way:
本发明提供一种实现对驻车控制器多重保护的备用电源系统，包括：变压电路、切换电路和电容模组；所述变压电路、所述切换电路和驻车控制器串联，所述电容模组一端连接在所述变压电路与所述切换电路的连线上，所述电容模组的另一端接地；The invention provides a backup power supply system for realizing multiple protection of a parking controller, comprising: a transformer circuit, a switching circuit and a capacitor module; the transformer circuit, the switching circuit and the parking controller are connected in series, and the One end of the capacitor module is connected to the connection line between the transformer circuit and the switching circuit, and the other end of the capacitor module is grounded;
所述切换电路包括：电压监测装置和开关装置；所述电压监测装置分别与低压电池和开关装置连接，当所述电压监测装置监测到低压电池电压低于设定值时，所述切换电路动作并切换成所述变压电路和所述电容模组给所述驻车控制器供电。The switching circuit includes: a voltage monitoring device and a switching device; the voltage monitoring device is respectively connected with the low-voltage battery and the switching device, and when the voltage monitoring device detects that the voltage of the low-voltage battery is lower than a set value, the switching circuit operates And switch to the transformer circuit and the capacitor module to supply power to the parking controller.
可选的，所述变压电路是高压转低压的反激电源电路。Optionally, the transformer circuit is a high voltage to low voltage flyback power supply circuit.
可选的，所述开关装置为MOS管。Optionally, the switching device is a MOS transistor.
可选的，备用电源系统还包括：充电电路；所述充电电路连接在变压电路的输出端，且所述电容模组的一端连接在所述充电电路与所述切换电路的连线上。Optionally, the backup power supply system further includes: a charging circuit; the charging circuit is connected to the output end of the transformer circuit, and one end of the capacitor module is connected to the connection line between the charging circuit and the switching circuit.
可选的，所述充电电路包括：充电电阻、P-MOS管和控制电路；所述P-MOS管与充电电阻并联，所述控制电路分别与P-MOS管和电容模组连接。Optionally, the charging circuit includes: a charging resistor, a P-MOS tube and a control circuit; the P-MOS tube is connected in parallel with the charging resistor, and the control circuit is respectively connected to the P-MOS tube and the capacitor module.
可选的，所述电容模组包括：若干个串联的电容单体；各所述电容单体并联一个均压电阻。Optionally, the capacitor module includes: several capacitor cells connected in series; each capacitor cell is connected in parallel with a voltage equalizing resistor.
可选的，所述电容单体的数量为10个，所述电容单体规格为3V/3F。Optionally, the number of the capacitor cells is 10, and the specification of the capacitor cells is 3V/3F.
可选的，所述电容模组还包括一个电压和温度监测装置，所述电压和温度监测装置的信号输出端与MCU连接。Optionally, the capacitor module further includes a voltage and temperature monitoring device, and the signal output end of the voltage and temperature monitoring device is connected to the MCU.
可选的，所述变压电路的输入端连接汽车动力电池。Optionally, the input end of the transformer circuit is connected to the vehicle power battery.
可选的，所述变压电路、所述充电电路、所述切换电路和所述驻车控制器设置在同一个壳体内，所述电容模组独立设置在所述壳体之外。Optionally, the transformer circuit, the charging circuit, the switching circuit and the parking controller are arranged in the same housing, and the capacitor module is independently arranged outside the housing.
采用上述实现对驻车控制器多重保护的备用电源系统具有以下优点：The backup power system that adopts the above-mentioned realization of multiple protection of the parking controller has the following advantages:
本发明提出的能对驻车控制器多重保护的备用电源系统，通过监测驻车控制器的输入电压，当输入电压低于设定值时，切换电路将切换为此驻车控制器备用电源供电，由于此备用电源配备有变压电路和电容模组，即便发生某些特定的极端条件，此备用电源还能依靠储存在电容模组中的电能来给驻车控制器供电，让驻车控制器能完成最后一次驻车，本驻车控制器备用电源系统简单、实用、安全可靠，能满足市场上对于驻车控制器安全可靠工作的更高要求。The backup power supply system that can provide multiple protections to the parking controller proposed by the present invention monitors the input voltage of the parking controller. When the input voltage is lower than the set value, the switching circuit will switch to the backup power supply for the parking controller. , Since this backup power supply is equipped with a transformer circuit and a capacitor module, even if some specific extreme conditions occur, this backup power supply can rely on the electric energy stored in the capacitor module to supply power to the parking controller, allowing the parking control The parking controller can complete the last parking. The backup power system of the parking controller is simple, practical, safe and reliable, and can meet the higher requirements of the safe and reliable operation of the parking controller in the market.
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂，以下特举本发明的具体实施方式。The above description is only an overview of the technical solutions of the present invention, in order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand , the following specific embodiments of the present invention are given.
附图说明Description of drawings
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。在附图中：Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. In the attached image:
图1是本发明的实施原理框图。FIG. 1 is a block diagram of the implementation principle of the present invention.
具体实施方式Detailed ways
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.
如图1所示，本发明实施例公开了一种实现对驻车控制器多重保护的备用电源系统，包括：变压电路，电容模组和切换电路；变压电路、切换电路和驻车控制器串联，电容模组一端连接在变压电路与切换电路的连线上，电容模组的另一端接地；As shown in FIG. 1 , an embodiment of the present invention discloses a backup power supply system that realizes multiple protections for a parking controller, including: a transformer circuit, a capacitor module and a switching circuit; a transformer circuit, a switching circuit and a parking control circuit The capacitor module is connected in series, one end of the capacitor module is connected to the connection line between the transformer circuit and the switching circuit, and the other end of the capacitor module is grounded;
本发明该实施例中的切换电路包括：一个电压监测装置和开关装置；电压监测装置分别与低压电池和开关装置连接，当电压监测装置监测到低压电池电压低于设定值时，切换电路动作并切换成变压电路和电容模组给驻车控制器供电。变压电路通过充电电路给电容模组充电，并通过切换电路连接到驻车控制器，电压监测装置将监测整车低压电池电压，在正常工作时，驻车控制器由整车低压电池供电，当低压电池电压低于设定值或断开为零值时，电压监测装置就会输出一个开关信号到切换电路，切换电路将切换为备用电源给驻车控制器供电，此时，高压电池中的电能经过变压电路的降压后，通过切换电路为驻车控制器供电。在整车低压电池或者和低压电池连接的线束出现问题时，为车辆能正常停车并完成驻车提供第一重保障；如果整车高压电池和低压电池供电同时出现问题时，此备用电源系统还能依靠储存在电容模组中的电能来给驻车控制器供电，为车辆能正常停车并完成驻车提供第二重保障。The switching circuit in this embodiment of the present invention includes: a voltage monitoring device and a switching device; the voltage monitoring device is respectively connected to the low-voltage battery and the switching device, and when the voltage monitoring device detects that the voltage of the low-voltage battery is lower than the set value, the switching circuit operates And switch into a transformer circuit and a capacitor module to supply power to the parking controller. The transformer circuit charges the capacitor module through the charging circuit, and is connected to the parking controller through the switching circuit. The voltage monitoring device will monitor the voltage of the low-voltage battery of the vehicle. During normal operation, the parking controller is powered by the low-voltage battery of the vehicle. When the voltage of the low-voltage battery is lower than the set value or disconnected to zero, the voltage monitoring device will output a switch signal to the switching circuit, and the switching circuit will switch to the backup power supply to supply power to the parking controller. After the electric energy is stepped down by the transformer circuit, it supplies power to the parking controller through the switching circuit. When there is a problem with the low-voltage battery of the vehicle or the wiring harness connected to the low-voltage battery, it provides the first guarantee for the vehicle to stop normally and complete the parking. It can rely on the electric energy stored in the capacitor module to supply power to the parking controller, providing a second guarantee for the vehicle to park normally and complete the parking.
在一个实施例中，变压电路为反激电源电路。此反激电源电路的输入为电动汽车的动力电池，输出为15V，最大功率为15W，在正常工作条件下，只要动力电池的高压存在，此反激电源电路就开始工作并输出恒定的15V，供给后面的充电电路和电容模组，此反激电源电路的功能是将高压转换为低压，保证驻车控制器实际接收的电压与其适用电压匹配。In one embodiment, the transformer circuit is a flyback power supply circuit. The input of this flyback power supply circuit is the power battery of the electric vehicle, the output is 15V, and the maximum power is 15W. Under normal working conditions, as long as the high voltage of the power battery exists, the flyback power supply circuit starts to work and outputs a constant 15V, The function of this flyback power supply circuit is to convert the high voltage to low voltage to ensure that the voltage actually received by the parking controller matches its applicable voltage.
进一步地，开关装置为MOS管。当切换电路检测到低压电池的电压低于设定值时，就会通过控制MOS管的开通和关断来启用备用电源系统。Further, the switching device is a MOS transistor. When the switching circuit detects that the voltage of the low-voltage battery is lower than the set value, it will enable the backup power system by controlling the turn-on and turn-off of the MOS transistor.
在一个优选实施例中，驻车控制器多重保护的备用电源系统还包括：充电电路；充电电路的输入端与变压电路的输出端连接，充电电路的输出端分别与电容模组和切换电路相接，并最终通过切换电路连接到驻车控制器。高压电池里的电能流经反激电源降压，然后通过充电电路为电容模组里面的超级电容进行充电，使电容模组正常情况下都处于充满电状态。In a preferred embodiment, the backup power supply system for multiple protection of the parking controller further includes: a charging circuit; the input end of the charging circuit is connected to the output end of the transformer circuit, and the output end of the charging circuit is respectively connected to the capacitor module and the switching circuit connected and finally connected to the parking controller through the switching circuit. The electric energy in the high-voltage battery flows through the flyback power supply to reduce the voltage, and then charges the supercapacitor in the capacitor module through the charging circuit, so that the capacitor module is normally fully charged.
进一步地，充电电路包括：充电电阻、P-MOS管和控制电路；P-MOS管与充电电阻并联，控制电路分别与P-MOS管和电容模组连接，充电电路的作用是限制电容的充电电流，充电电路中的充电电阻串联在电路上，可以降低电路中的电流。在反激电源上电时，反激电源的输出电压会经过充电电阻再给电容模组充电，当控制电路检测到电容模组的电压上升到接近比如15V时，控制电路会输出一个电平来开启P-MOS管，当P-MOS管导通时会短路充电电阻，避免充电电阻长时间工作带来电能的损耗。Further, the charging circuit includes: a charging resistor, a P-MOS tube and a control circuit; the P-MOS tube is connected in parallel with the charging resistor, the control circuit is respectively connected with the P-MOS tube and the capacitor module, and the function of the charging circuit is to limit the charging of the capacitor. Current, the charging resistor in the charging circuit is connected in series with the circuit, which can reduce the current in the circuit. When the flyback power supply is powered on, the output voltage of the flyback power supply will pass through the charging resistor to charge the capacitor module. When the control circuit detects that the voltage of the capacitor module rises to close to, for example, 15V, the control circuit will output a level to When the P-MOS tube is turned on, the charging resistor will be short-circuited when the P-MOS tube is turned on, so as to avoid the power loss caused by the charging resistor working for a long time.
在一个实施例中，电容模组包括：若干个串联的电容单体；每个电容单体上都并联一个均压电阻。均压电阻的主要作用是利用分压原理保证使各个电容上面电压均等，因为电容单体之间存在差异，各个电容端电压容易发生不等，进而容易导致电容被击穿，并联的均压电阻能有效防止各个电容端电压不等情况的发生。In one embodiment, the capacitor module includes: several capacitor cells connected in series; each capacitor cell is connected in parallel with a voltage equalizing resistor. The main function of the voltage equalizing resistor is to use the voltage division principle to ensure that the voltages on each capacitor are equalized. Because of the differences between the capacitors, the voltages at the terminals of each capacitor are prone to vary, which in turn easily leads to the breakdown of the capacitors. It can effectively prevent the occurrence of unequal voltage of each capacitor terminal.
优选的，电容单体的数量为10个，电容单体为3V/3F的超级电容单体，10个电容单体串联连接，每个电容单体在正常工作时承受的电压是1.5V，在反激电源正常上电时，通过充电电路给电容模组充电，充满电后，电容模组的电压会稳定在15V，当发生驻车控制器供电故障时，电容模组上储存的电能可以供驻车控制器应急使用。Preferably, the number of capacitor cells is 10, the capacitor cells are 3V/3F supercapacitor cells, 10 capacitor cells are connected in series, and the voltage that each capacitor cell withstands during normal operation is 1.5V. When the flyback power supply is powered on normally, the capacitor module is charged through the charging circuit. After fully charged, the voltage of the capacitor module will be stable at 15V. Emergency use of the parking controller.
在一个实施例中，电容模组还包括一个电压和温度监测装置，电压和温度监测装置的信号输出端与MCU连接。电压和温度监测电路是对电容模组的电压和温度进行随时监测，并把监测到的电压和温度信号传给MCU，通过MCU就可以随时掌握电容模组的状态信息，确保电容模组处于正常工作状态。In one embodiment, the capacitor module further includes a voltage and temperature monitoring device, and the signal output end of the voltage and temperature monitoring device is connected to the MCU. The voltage and temperature monitoring circuit monitors the voltage and temperature of the capacitor module at any time, and transmits the monitored voltage and temperature signals to the MCU. Through the MCU, the status information of the capacitor module can be grasped at any time to ensure that the capacitor module is in normal condition. working status.
在一个实施例中，变压电路的输入端连接汽车动力电池。汽车动力电池中的电能经过变压电路进行变压后，进入备用电源系统，一方面给电容模组充电，另一方面作为驻车控制器的备用电能。In one embodiment, the input end of the transformer circuit is connected to the vehicle power battery. The electric energy in the car power battery is transformed by the transformer circuit and then enters the backup power supply system, which charges the capacitor module on the one hand, and serves as the backup power for the parking controller on the other hand.
在一个优选的实施例中，变压电路、充电电路、切换电路和驻车控制器设置在同一个壳体内，防止发生车祸等意外情况时，驻车控制器没有损坏，但低压电池和备用电源都无法供电，无法完成驻车。将备用电源和驻车控制器放在同一个壳体内，除非备用电源和驻车控制器都发生损坏，否则备用电源都可以实现供电。电容模组独立设置在壳体之外，便于电容模组的散热，防止电容模组温度过高而损坏。In a preferred embodiment, the transformer circuit, the charging circuit, the switching circuit and the parking controller are arranged in the same housing to prevent the parking controller from being damaged in the event of an accident such as a car accident, but the low-voltage battery and the backup power supply are not damaged. There is no power supply, and the parking cannot be completed. Put the backup power supply and the parking controller in the same housing, and unless both the backup power supply and the parking controller are damaged, the backup power supply can supply power. The capacitor module is independently arranged outside the casing, which facilitates the heat dissipation of the capacitor module and prevents the capacitor module from being damaged due to excessive temperature.
综上，本发明公开了一种实现对车辆驻车控制器多重保护的备用电源系统，包括：变压电路、切换电路和电容模组；变压电路、切换电路和驻车控制器串联，电容模组一端连接在变压电路与切换电路的连线上，电容模组的另一端接地；切换电路包括：电压监测装置和开关装置；电压监测装置分别与低压电池和开关装置连接，当电压监测装置监测到低压电池电压低于设定值时，切换电路动作并切换成变压电路和电容模组给驻车控制器供电。本发明公开的备用电源系统在整车低压供电出现故障，无法确保驻车控制器正常工作时，切换电路将检测到故障，通过启动备用电源系统来让汽车动力电池给驻车控制器提供能量，当整车低压供电和高压供电都出现故障时，备用电源系统内电容模组上储存的电能也能让驻车控制器完成最后一次驻车，确保驻车控制器在极限工况下能顺利完成驻车等功能，使整车制动性能更加安全、可靠。To sum up, the present invention discloses a backup power supply system for realizing multiple protection of the vehicle parking controller, including: a transformer circuit, a switching circuit and a capacitor module; the transformer circuit, the switching circuit and the parking controller are connected in series, and the capacitor One end of the module is connected to the connection line between the transformer circuit and the switching circuit, and the other end of the capacitor module is grounded; the switching circuit includes: a voltage monitoring device and a switching device; the voltage monitoring device is respectively connected with the low-voltage battery and the switching device. When the device detects that the voltage of the low-voltage battery is lower than the set value, the switching circuit acts and switches into a transformer circuit and a capacitor module to supply power to the parking controller. In the backup power supply system disclosed by the invention, when the low-voltage power supply of the whole vehicle fails and the normal operation of the parking controller cannot be ensured, the switching circuit will detect the failure and start the backup power supply system to allow the power battery of the vehicle to provide energy to the parking controller. When both the low-voltage power supply and the high-voltage power supply of the whole vehicle fail, the electric energy stored on the capacitor module in the backup power supply system can also allow the parking controller to complete the last parking, ensuring that the parking controller can successfully complete the operation under extreme conditions. Parking and other functions make the braking performance of the whole vehicle safer and more reliable.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
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| CN201910925209.1ACN110667381A (en) | 2019-09-27 | 2019-09-27 | Standby power supply system for realizing multiple protection of parking controller |
| PCT/CN2020/113390WO2021057437A1 (en) | 2019-09-27 | 2020-09-04 | Standby power supply system for realizing multiple types of protection for parking controller |
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