WO2018166127A1 - Vehicle socket - Google Patents

Vehicle socket Download PDF

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Publication number
WO2018166127A1
WO2018166127A1 PCT/CN2017/092848 CN2017092848W WO2018166127A1 WO 2018166127 A1 WO2018166127 A1 WO 2018166127A1 CN 2017092848 W CN2017092848 W CN 2017092848W WO 2018166127 A1 WO2018166127 A1 WO 2018166127A1
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Prior art keywords
vehicle
control unit
temperature
socket
charging
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PCT/CN2017/092848
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French (fr)
Chinese (zh)
Inventor
吴绵高
孟凯
官秀文
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宁德时代新能源科技股份有限公司
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Publication of WO2018166127A1 publication Critical patent/WO2018166127A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component

Definitions

  • the invention belongs to the technical field of electric vehicles, and more particularly to a vehicle socket.
  • the realization of the charging function depends on the reliability of the continuous coupling of the charging interface, but the vehicle socket may have poor contact, dust accumulation and oxidation after a long time of use, which will lead to excessive contact resistance, when a large current for a long time
  • the interface may be overheated.
  • the heat is severe, the charging interface or the socket may be damaged, which brings great safety risks to the charging process. Therefore, the temperature of the vehicle socket needs to be monitored.
  • Some vehicle sockets use temperature sensors and on-board control units to achieve temperature monitoring.
  • the position of the temperature sensor is far from the vehicle control unit, and the length of the line is susceptible to signal interference, which causes the vehicle control unit to frequently charge. Abnormal error judgment.
  • the vehicle socket is often integrated in the vehicle end, which is convenient for high-voltage and safe on-off control. Therefore, it is recommended to implement temperature monitoring and over-temperature protection on the vehicle socket to avoid high temperature charging plug and charging socket. Damage, which reduces the safety hazard during charging.
  • the object of the present invention is to overcome the deficiencies of the prior art and provide a vehicle socket, which can be implemented The temperature detection and over-temperature protection functions of the vehicle socket are now available, and the charging state can be accurately judged.
  • the present invention provides a vehicle socket including a socket, an in-vehicle control unit, and a temperature measuring device disposed inside the socket, wherein the temperature measuring device includes a power module, a temperature detecting module, a communication module, and a control
  • the controller MCU is respectively connected to the temperature detecting module, the communication module and the power module, and the temperature measuring device is connected to the vehicle control unit through the communication module.
  • the temperature detecting module detects the temperature of the positive and negative terminals of the vehicle socket charging stand and transmits the real-time temperature data to the in-vehicle control unit through the communication module.
  • the communication module transmits real-time temperature data to the in-vehicle control unit via a CAN/LIN signal.
  • the temperature measuring device is in a sleep state of low power consumption when the vehicle socket is not charged.
  • the onboard control unit when the onboard control unit detects that a charging gun is inserted into the vehicle socket by the CC2 signal voltage change, the onboard control unit inputs the high level signal to bring the temperature measuring device into an active state.
  • the onboard control unit is preset with a high temperature threshold.
  • the on-board control unit when the real-time temperature data received by the on-board control unit is higher than the high temperature threshold, the on-board control unit performs over-temperature protection to stop charging.
  • the in-vehicle control unit performs over-temperature protection by reducing the charging request current.
  • the vehicle power supply of the automobile supplies power to the power module.
  • the vehicle socket of the invention has the following beneficial technical effects:
  • the vehicle socket is temperature-detected and has an over-temperature protection function, which effectively avoids damage to the charging plug and the charging socket due to high temperature, and reduces the safety hazard during charging;
  • FIG. 1 is a schematic structural view of a module of a vehicle socket of the present invention.
  • a vehicle socket of the present invention includes a socket, an in-vehicle control unit, and a temperature measuring device disposed inside the socket, wherein the temperature measuring device includes a power module, a temperature detecting module, a communication module, and a controller MCU, and controls The MCU is respectively connected to the temperature detecting module, the communication module and the power module, and the temperature measuring device is connected to the vehicle control unit through the communication module.
  • the temperature measuring device measures the temperature of the vehicle socket when it is charged.
  • the temperature detecting module detects the temperature at the positive and negative terminals of the vehicle socket charging seat, and then the controller MCU sends the data to the communication module, and the communication module transmits the detected temperature data to the vehicle control unit through the CAN/LIN signal. .
  • the temperature measuring device When not charging, the temperature measuring device is in a low-power sleep state, saving energy.
  • the vehicle control unit detects the change of the CC2 signal voltage, and wakes up the temperature measuring device by outputting a high level signal, so that the temperature measuring device is in working state, and the vehicle socket charging seat is measured online. The temperature at the positive and negative terminals reduces the safety hazard during charging.
  • the vehicle control unit needs Preset has a high temperature threshold; when the temperature detected by the temperature measuring device is higher than At this high temperature threshold, the on-board control unit will reduce the charge request current and stop charging for over-temperature protection.
  • the vehicle's on-board power supply provides power to the power module of the temperature measuring device without the need for an additional power supply.
  • the temperature measuring device In the normal non-charging state, the temperature measuring device is in a low power consumption state of sleep.
  • the charging gun is inserted, and the vehicle control unit detects that there is a charging insertion socket through the CC2 signal voltage change, and the vehicle control unit outputs a high level.
  • the signal wakes up the temperature measuring device, and the temperature measuring device enters the working state after receiving the high level signal.
  • the temperature detecting module performs on-line measurement on the real-time temperature of the positive and negative poles of the vehicle socket charging seat, and transmits the detected real-time temperature data to the vehicle control unit through the communication module using CAN/LIN communication mode, and the vehicle control unit
  • a high temperature threshold is preset. When the real-time temperature data received by the vehicle control unit is higher than the preset high temperature threshold, the vehicle control unit automatically reduces the charging request current, performs over-temperature protection, stops charging, thereby reducing the charging risk. Improve system reliability.
  • the vehicle socket is temperature-detected and has an over-temperature protection function, which effectively avoids damage to the charging plug and the charging socket due to high temperature, and reduces the safety hazard during charging;

Abstract

Provided is a vehicle socket, comprising a socket, a vehicle-mounted control unit, and a temperature measuring device disposed inside the socket. The temperature measuring device comprises a power supply module, a temperature detection module, a communication module and a controller MCU. The controller MCU is respectively connected with the temperature detection module, the communication module and the power supply module, and the temperature measurement device is connected with the vehicle-mounted control unit through the communication module. The vehicle socket solves the problem of interference due to lengthy wire caused by temperature detection by the vehicle-mounted control unit and can accurately judge the charging status and reduce misjudgment, thereby effectively avoiding the high temperature damage to the charging plug and charging socket and reducing safety hazards in charging.

Description

车辆插座Vehicle socket 技术领域Technical field
本发明属于电动汽车技术领域，更具体地说，本发明涉及一种车辆插座。The invention belongs to the technical field of electric vehicles, and more particularly to a vehicle socket.
背景技术Background technique
伴随着近年来新能源电动汽车的高速发展与普及，市场上逐渐暴露出一些充电安全事故，充电安全技术的提升愈来愈受重视。Along with the rapid development and popularization of new energy electric vehicles in recent years, some charging safety accidents are gradually exposed in the market, and the improvement of charging safety technology is receiving more and more attention.
其中，充电功能的实现依赖于充电接口不断耦合的可靠性，但车辆插座在长时间的使用后会有接触不良、积尘、氧化的隐患，这将导致接触电阻过大，当长时间大电流充电时会引起接口过温，发热严重时甚至会导致充电接口或插座的损坏，给充电过程带来极大的安全风险，因此车辆插座温度需要受到监控。Among them, the realization of the charging function depends on the reliability of the continuous coupling of the charging interface, but the vehicle socket may have poor contact, dust accumulation and oxidation after a long time of use, which will lead to excessive contact resistance, when a large current for a long time When charging, the interface may be overheated. When the heat is severe, the charging interface or the socket may be damaged, which brings great safety risks to the charging process. Therefore, the temperature of the vehicle socket needs to be monitored.
有的车辆插座通过温度传感器和车载控制单元来实现温度的监测，但是这种方式中温度传感器安装的位置距车载控制单元较远，线路长易受信号干扰，导致车载控制单元会经常做出充电异常的错误判断。Some vehicle sockets use temperature sensors and on-board control units to achieve temperature monitoring. However, in this mode, the position of the temperature sensor is far from the vehicle control unit, and the length of the line is susceptible to signal interference, which causes the vehicle control unit to frequently charge. Abnormal error judgment.
目前现有的电动汽车中，车辆插座常集成于整车端，便于实现高压安全的通断控制，所以建议在车辆插座上实现温度监控与过温保护功能，避免高温对充电插头及充电插座的损坏，从而降低充电时的安全隐患。At present, in the existing electric vehicles, the vehicle socket is often integrated in the vehicle end, which is convenient for high-voltage and safe on-off control. Therefore, it is recommended to implement temperature monitoring and over-temperature protection on the vehicle socket to avoid high temperature charging plug and charging socket. Damage, which reduces the safety hazard during charging.
有鉴于此，确有必要提供一种能实现温度检测和过温保护功能且充电状态判断准确的车辆插座。In view of this, it is indeed necessary to provide a vehicle socket that can realize temperature detection and over-temperature protection functions and accurately determine the state of charge.
发明内容Summary of the invention
本发明的目的在于：克服现有技术的不足，提供一种车辆插座，其可以实 现车辆插座的温度检测和过温保护功能，并能对充电状态进行准确的判断。The object of the present invention is to overcome the deficiencies of the prior art and provide a vehicle socket, which can be implemented The temperature detection and over-temperature protection functions of the vehicle socket are now available, and the charging state can be accurately judged.
为了实现上述目的，本发明提供了一种车辆插座，其包括插座、车载控制单元和设置于插座内部的测温装置，其中，所述测温装置包括电源模块、温度检测模块、通信模块和控制器MCU，所述控制器MCU分别与温度检测模块、通信模块和电源模块连接，所述测温装置通过通信模块与车载控制单元连接。In order to achieve the above object, the present invention provides a vehicle socket including a socket, an in-vehicle control unit, and a temperature measuring device disposed inside the socket, wherein the temperature measuring device includes a power module, a temperature detecting module, a communication module, and a control The controller MCU is respectively connected to the temperature detecting module, the communication module and the power module, and the temperature measuring device is connected to the vehicle control unit through the communication module.
作为本发明车辆插座的一种改进，所述温度检测模块检测车辆插座充电座正负极的温度并通过所述通信模块将实时温度数据发送给车载控制单元。As an improvement of the vehicle socket of the present invention, the temperature detecting module detects the temperature of the positive and negative terminals of the vehicle socket charging stand and transmits the real-time temperature data to the in-vehicle control unit through the communication module.
作为本发明车辆插座的一种改进，所述通信模块通过CAN/LIN信号向车载控制单元发送实时温度数据。As an improvement of the vehicle socket of the present invention, the communication module transmits real-time temperature data to the in-vehicle control unit via a CAN/LIN signal.
作为本发明车辆插座的一种改进，所述测温装置在车辆插座不充电时处于低功耗的休眠状态。As an improvement of the vehicle socket of the present invention, the temperature measuring device is in a sleep state of low power consumption when the vehicle socket is not charged.
作为本发明车辆插座的一种改进，所述车载控制单元通过CC2信号电压变化检测到有充电枪插入车辆插座时，车载控制单元通过输出高电平信号使测温装置进入工作状态。As an improvement of the vehicle socket of the present invention, when the onboard control unit detects that a charging gun is inserted into the vehicle socket by the CC2 signal voltage change, the onboard control unit inputs the high level signal to bring the temperature measuring device into an active state.
作为本发明车辆插座的一种改进，所述车载控制单元预设有一高温阈值。As an improvement of the vehicle socket of the present invention, the onboard control unit is preset with a high temperature threshold.
作为本发明车辆插座的一种改进，所述车载控制单元接收到的实时温度数据高于所述高温阈值时，车载控制单元进行过温保护，停止充电。As an improvement of the vehicle socket of the present invention, when the real-time temperature data received by the on-board control unit is higher than the high temperature threshold, the on-board control unit performs over-temperature protection to stop charging.
作为本发明车辆插座的一种改进，所述车载控制单元通过减小充电请求电流的方式来进行过温保护。As an improvement of the vehicle socket of the present invention, the in-vehicle control unit performs over-temperature protection by reducing the charging request current.
作为本发明车辆插座的一种改进，汽车的车载供电为所述电源模块提供电能。As an improvement of the vehicle socket of the present invention, the vehicle power supply of the automobile supplies power to the power module.
相对于现有技术，本发明车辆插座具有以下有益技术效果：Compared with the prior art, the vehicle socket of the invention has the following beneficial technical effects:
1)充电过程中对车辆插座进行温度检测并具有过温保护功能，有效地避免了高温对充电插头及充电插座的损坏，降低了充电时的安全隐患；1) During the charging process, the vehicle socket is temperature-detected and has an over-temperature protection function, which effectively avoids damage to the charging plug and the charging socket due to high temperature, and reduces the safety hazard during charging;
2)简化了现有技术中车载控制单元进行温度检测带来的线长易干扰问题， 并能对充电状态作出准确的判断，减少误判。2) Simplified the problem of long line interference caused by temperature detection of the vehicle control unit in the prior art, And can make an accurate judgment on the state of charge, reducing false positives.
附图说明DRAWINGS
下面结合附图和具体实施方式，对本发明车辆插座进行详细说明，其中：The vehicle socket of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, wherein:
图1为本发明车辆插座的模块结构示意图。1 is a schematic structural view of a module of a vehicle socket of the present invention.
具体实施方式detailed description
为了使本发明的目的、技术方案及其技术效果更加清晰，以下结合附图和具体实施方式，对本发明进行进一步详细说明。应当理解的是，本说明书中描述的具体实施方式仅仅是为了解释本发明，并非为了限定本发明。The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The specific embodiments described in the specification are to be construed as illustrative only and not limiting.
请参照图1所示，本发明车辆插座，其包括插座、车载控制单元和设置于插座内部的测温装置，其中，测温装置包括电源模块、温度检测模块、通信模块和控制器MCU，控制器MCU分别与温度检测模块、通信模块和电源模块连接，测温装置通过通信模块与车载控制单元连接。Referring to FIG. 1 , a vehicle socket of the present invention includes a socket, an in-vehicle control unit, and a temperature measuring device disposed inside the socket, wherein the temperature measuring device includes a power module, a temperature detecting module, a communication module, and a controller MCU, and controls The MCU is respectively connected to the temperature detecting module, the communication module and the power module, and the temperature measuring device is connected to the vehicle control unit through the communication module.
测温装置对车辆插座充电时的温度进行在线测量。充电过程中，温度检测模块对车辆插座充电座正负极处的温度进行检测，然后控制器MCU将数据发送至通信模块，通信模块通过CAN/LIN信号将检测到的温度数据发送给车载控制单元。The temperature measuring device measures the temperature of the vehicle socket when it is charged. During the charging process, the temperature detecting module detects the temperature at the positive and negative terminals of the vehicle socket charging seat, and then the controller MCU sends the data to the communication module, and the communication module transmits the detected temperature data to the vehicle control unit through the CAN/LIN signal. .
在不充电时，测温装置处于低功耗的休眠状态，节约能源。当需要充电时，充电枪插入车辆插座内时，车载控制单元检测到CC2信号电压的变化，则通过输出高电平信号唤醒测温装置，使测温装置处于工作状态，在线测量车辆插座充电座正负极处的温度，减低充电时的安全隐患。When not charging, the temperature measuring device is in a low-power sleep state, saving energy. When charging is required, when the charging gun is inserted into the vehicle socket, the vehicle control unit detects the change of the CC2 signal voltage, and wakes up the temperature measuring device by outputting a high level signal, so that the temperature measuring device is in working state, and the vehicle socket charging seat is measured online. The temperature at the positive and negative terminals reduces the safety hazard during charging.
当测温装置在线检测过程中，车辆插座的接触不良、积尘、氧化或其他情况可能会导致车辆插座充电过温，高温会对充电插头和车辆插座产生较大的损坏，因此车载控制单元需要预设有一高温阈值；当测温装置检测到的温度高于 这一高温阈值时，车载控制单元会减小充电请求电流，停止充电进行过温保护。During the on-line detection of the temperature measuring device, poor contact, dust, oxidation or other conditions of the vehicle socket may cause the vehicle socket to be overheated, and the high temperature may cause great damage to the charging plug and the vehicle socket, so the vehicle control unit needs Preset has a high temperature threshold; when the temperature detected by the temperature measuring device is higher than At this high temperature threshold, the on-board control unit will reduce the charge request current and stop charging for over-temperature protection.
汽车的车载供电为测温装置的电源模块提供电能，无需另外的电源供电。The vehicle's on-board power supply provides power to the power module of the temperature measuring device without the need for an additional power supply.
参照图1所示详细叙述本发明车辆插座的原理和实施过程。The principle and implementation of the vehicle socket of the present invention will be described in detail with reference to FIG.
正常不充电状态下，测温装置处于休眠的低功耗状态，当需要进行充电时，插入充电枪，车载控制单元通过CC2信号电压变化检测到有充电插入插座后，车载控制单元输出高电平信号唤醒测温装置，测温装置接收到高电平信号后，进入工作状态。在整个充电过程中，温度检测模块对车辆插座充电座正负极的实时温度进行在线测量，并通过通信模块采用CAN/LIN通信方式向车载控制单元发送所检测到的实时温度数据，车载控制单元预设有一个高温阈值，当车载控制单元接收到的实时温度数据高于预设的高温阈值时，车载控制单元会自动减小充电请求电流，进行过温保护，停止充电，从而降低充电风险，提高系统可靠性。In the normal non-charging state, the temperature measuring device is in a low power consumption state of sleep. When charging is required, the charging gun is inserted, and the vehicle control unit detects that there is a charging insertion socket through the CC2 signal voltage change, and the vehicle control unit outputs a high level. The signal wakes up the temperature measuring device, and the temperature measuring device enters the working state after receiving the high level signal. During the whole charging process, the temperature detecting module performs on-line measurement on the real-time temperature of the positive and negative poles of the vehicle socket charging seat, and transmits the detected real-time temperature data to the vehicle control unit through the communication module using CAN/LIN communication mode, and the vehicle control unit A high temperature threshold is preset. When the real-time temperature data received by the vehicle control unit is higher than the preset high temperature threshold, the vehicle control unit automatically reduces the charging request current, performs over-temperature protection, stops charging, thereby reducing the charging risk. Improve system reliability.
结合以上对本发明的详细描述可以看出，相对于现有技术，本发明至少具有以下有益技术效果：In combination with the above detailed description of the present invention, it can be seen that the present invention has at least the following beneficial technical effects with respect to the prior art:
1)充电过程中对车辆插座进行温度检测并具有过温保护功能，有效地避免了高温对充电插头及充电插座的损坏，降低了充电时的安全隐患；1) During the charging process, the vehicle socket is temperature-detected and has an over-temperature protection function, which effectively avoids damage to the charging plug and the charging socket due to high temperature, and reduces the safety hazard during charging;
2)简化了现有技术中车载控制单元进行温度检测带来的线长易干扰问题，并能对充电状态作出准确的判断，减少误判。2) Simplified the problem of easy line interference caused by temperature detection of the vehicle control unit in the prior art, and can accurately judge the state of charge and reduce misjudgment.
根据上述原理，本发明还可以对上述实施方式进行适当的变更和修改。因此，本发明并不局限于上面揭示和描述的具体实施方式，对本发明的一些修改和变更也应当落入本发明的权利要求的保护范围内。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本发明构成任何限制。 According to the above principle, the present invention can also be appropriately modified and modified as described above. Therefore, the invention is not limited to the specific embodiments disclosed and described herein, and the modifications and variations of the invention are intended to fall within the scope of the appended claims. In addition, although specific terms are used in the specification, these terms are merely for convenience of description and do not limit the invention.

Claims (9)

  1. 一种车辆插座，其包括插座、车载控制单元和设置于插座内部的测温装置，其特征在于：所述测温装置包括电源模块、温度检测模块、通信模块和控制器MCU，所述控制器MCU分别与温度检测模块、通信模块和电源模块连接，所述测温装置通过通信模块与车载控制单元连接。A vehicle socket includes a socket, an in-vehicle control unit and a temperature measuring device disposed inside the socket, wherein the temperature measuring device comprises a power module, a temperature detecting module, a communication module and a controller MCU, and the controller The MCU is respectively connected to the temperature detecting module, the communication module and the power module, and the temperature measuring device is connected to the vehicle control unit through the communication module.
  2. 根据权利要求1所述的车辆插座，其特征在于：所述温度检测模块在线检测车辆插座充电座正负极处的温度并通过所述通信模块将实时温度数据发送给车载控制单元。The vehicle socket according to claim 1, wherein the temperature detecting module detects the temperature at the positive and negative terminals of the vehicle socket charging stand on-line and transmits the real-time temperature data to the in-vehicle control unit through the communication module.
  3. 根据权利要求2所述的车辆插座，其特征在于：所述通信模块通过CAN/LIN信号向车载控制单元发送实时温度数据。The vehicle socket according to claim 2, wherein said communication module transmits real-time temperature data to the in-vehicle control unit via the CAN/LIN signal.
  4. 根据权利要求1所述的车辆插座，其特征在于：所述测温装置在车辆插座不充电时处于低功耗的休眠状态。The vehicle socket of claim 1 wherein said temperature measuring device is in a low power sleep state when the vehicle socket is not charging.
  5. 根据权利要求1所述的车辆插座，其特征在于：所述车载控制单元通过CC2信号电压变化检测到有充电枪插入车辆插座时，车载控制单元通过输出高电平信号使测温装置进入工作状态。The vehicle socket according to claim 1, wherein the onboard control unit detects that a charging gun is inserted into the vehicle socket through a CC2 signal voltage change, and the onboard control unit inputs the high level signal to bring the temperature measuring device into a working state. .
  6. 根据权利要求1所述的车辆插座，其特征在于：所述车载控制单元预设有一高温阈值。The vehicle socket of claim 1 wherein said onboard control unit is preset with a high temperature threshold.
  7. 根据权利要求6所述的车辆插座，其特征在于：所述车载控制单元接收到的实时温度数据高于所述高温阈值时，车载控制单元进行过温保护，停止充电。The vehicle socket according to claim 6, wherein when the real-time temperature data received by the onboard control unit is higher than the high temperature threshold, the onboard control unit performs over temperature protection to stop charging.
  8. 根据权利要求7所述的车辆插座，其特征在于：所述车载控制单元通过减小充电请求电流的方式来进行过温保护。The vehicle socket according to claim 7, wherein said in-vehicle control unit performs over-temperature protection by reducing a charging request current.
  9. 根据权利要求1所述的车辆插座，其特征在于：汽车的车载供电为所述电源模块提供电能。 The vehicle socket of claim 1 wherein the vehicle power supply of the vehicle provides electrical energy to the power module.
PCT/CN2017/092848 2017-03-14 2017-07-13 Vehicle socket WO2018166127A1 (en)

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CN106347156A (en) * 2016-09-18 2017-01-25 深圳市科列技术股份有限公司 Vehicle-mounted charging control management module, system and method

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CN102795118A (en) * 2012-09-12 2012-11-28 北京普莱德新能源电池科技有限公司 Power battery system for electric vehicle
EP2995496A1 (en) * 2014-09-15 2016-03-16 LSIS Co., Ltd. Electric vehicle charging apparatus
CN104410138A (en) * 2014-11-24 2015-03-11 重庆长安汽车股份有限公司 Automobile charging and discharging control system and method
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