The invention relates to a voltage control method and device for a vehicle, the vehicle and a storage medium, and the voltage control method comprises the steps that when the vehicle is in a torque mode, a coil signal of a main relay of the vehicle is obtained; determining that the coil of the main relay is in a disconnected state according to the coil signal; controlling the vehicle to enter a voltage control mode to execute the following steps to stabilize the bus voltage of the vehicle within a safe voltage range: acquiring a voltage instruction value, acquiring the bus voltage of the vehicle in real time, and performing closed-loop control according to the voltage instruction value and the bus voltage of the vehicle acquired in real time to obtain a current-limiting torque; in the first preset duration when the vehicle enters the voltage control mode, the motor of the vehicle is controlled to output torque according to the current-limiting torque, overvoltage impact caused by high-voltage load throwing generated by disconnection of a bus is effectively avoided, and pre-protection of a bus capacitor and other nodes connected to a bus high-voltage network is achieved.

    本公开涉及一种用于车辆的电压控制方法、装置、车辆及存储介质,电压控制方法包括:在车辆处于扭矩模式下,获取车辆的主继电器的线圈信号;根据线圈信号,确定主继电器的线圈处于断开状态;控制车辆进入电压控制模式,以执行以下步骤将车辆的母线电压稳定在安全电压范围之内:获取电压指令值和实时获取车辆的母线电压,并根据电压指令值和实时获取的车辆的母线电压进行闭环控制,得到限流扭矩;在车辆进入电压控制模式的第一预设时长内,根据限流扭矩,控制车辆的电机进行扭矩输出,有效避免因母线断开产生的高压抛负载所造成的过压冲击,实现了母线电容和接入母线高压网络的其它节点的预保护。


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    Title :

    Voltage control method and device for vehicle, vehicle and storage medium


    Additional title:

    用于车辆的电压控制方法、装置、车辆及存储介质


    Contributors:
    FANG LIANG (author)

    Publication date :

    2022-11-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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