The invention discloses an electronic lock unlocking method during alternating current charging of an electric vehicle. A PEPS ECU detects the relative position between an intelligent key and each low-frequency antenna; the identity of the intelligent key is identified through the low-frequency antennas; the low-frequency antennas transmit the measured key coordinates to the PEPS ECU; the PEPS ECUsends a corresponding electronic lock unlocking operation instruction to a BMS through a CAN bus; after the BMS receives an unlocking operation instruction of the PEPS ECU, the BMS sends a charging current to an OBC through the CAN bus to reduce the charging current to be lower than a safety set value; and the OBC receives the instruction and reduces the output current to below a safety set valueaccording to the request of the BMS, and then an electronic lock is unlocked. By the adoption of the technical scheme, the electronic lock can be intelligently unlocked in the alternating current charging process, the electronic lock is reasonable in structure and stable and reliable in operation, and the problem that the electronic lock is not liable to plug or unsafely and randomly plugged is effectively solved.

    本发明公开了一种电动车交流充电时的电子锁解锁方法,PEPS ECU探测智能钥匙与各低频天线间的相对位置;通过低频天线对智能钥匙身份进行识别;低频天线将测得的钥匙坐标传送给PEPS ECU;PEPS ECU通过CAN总线将相应的电子锁解锁操作指令发送给BMS;BMS接收到PEPS ECU的解锁操作指令后,通过CAN总线向OBC发出将充电电流降到安全设定值以下;OBC接收指令并根据BMS的请求降低输出电流至安全设定值以下,再将电子锁解锁。采用上述技术方案,在交流充电过程中电子锁能够实现智能解锁;其结构合理,运行稳定可靠,有效解决电子锁不易插拔或不安全随便插拔的问题。


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    Title :

    Electronic lock unlocking method during alternating current charging of electric vehicle


    Additional title:

    一种电动车交流充电时的电子锁解锁方法


    Contributors:
    XIE YUMEI (author) / YUAN ZHONG (author) / LI WU (author)

    Publication date :

    2020-09-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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