The invention discloses a vehicle charging compatibility control method and system, and belongs to the technical field of new energy vehicles, and the method comprises a driving discharging process control step S1 and a vehicle discharging process control step S2; the driving discharging process control step S1 specifically comprises the steps that a VCU receives a key signal and sends a high-voltage request to a BMS; after the BMS receives the high-voltage request, a pre-charging relay and a main loop positive relay are closed to start the pre-charging process, and a main loop negative relay is closed and controlled according to the voltage difference between the rear-end voltage and the voltage of the battery pack; and the PDU control board executes state detection of the fast-charging positive relay and the fast-charging negative relay. During charging, the BMS sets a strategy for delaying interaction with the charging pile, the fault detection process of the charging relay is ensured, the charging relay is adapted to charging piles of different brands, and the charging compatibility of the piles of different brands is improved.

    本发明公开了一种车辆的充电兼容性控制方法及系统,属于新能源车辆技术领域,方法包括行车放电过程控制步骤S1以及车辆放电过程控制步骤S2;其中,行车放电过程控制步骤S1具体包括:VCU接收钥匙信号,并向BMS发送高压请求;BMS在接收到高压请求后,闭合预充继电器和主回路正继电器以开始预充过程,并根据后端电压与电池组电压的电压差闭合控制主回路负继电器;PDU控制板执行快充正继电器、快充负继电器的状态检测。充电时,BMS设定一种延迟与充电桩交互策略,保证充电继电器故障检测过程,适配不同品牌充电桩,提升不同品牌桩的充电兼容性。


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    Title :

    Charging compatibility control method and system of vehicle


    Additional title:

    一种车辆的充电兼容性控制方法及系统


    Contributors:
    SU SONGLIN (author) / YAN YIFEI (author) / WU ZHAOLIANG (author) / ZHU YONGCHANG (author) / CHEN CHONG (author) / GUO FENG (author)

    Publication date :

    2024-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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