The invention provides a braking energy recovery method, device and equipment and a medium, which are applied to a vehicle control unit, and when a vehicle works in a braking working condition, the maximum negative torque of the vehicle is determined according to the maximum negative torque of a motor and the maximum charging power of a battery; determining a first torque limit value according to the maximum negative torque of the vehicle, and sending the first torque limit value to a chassis controller; receiving a target torque sent by the chassis controller, wherein the target torque is determined by the chassis controller according to the first torque limit value; judging whether the target torque is greater than a first torque limit value; if yes, the motor output torque is determined to be a first torque limit value for braking energy recovery, otherwise, the motor output torque is determined to be a target torque for braking energy recovery, the target torque value and the first torque limit value are compared, the proper motor output torque is determined, and normal operation of the motor is protected. Energy can be recovered as much as possible under different conditions, the energy consumption of the whole vehicle is reduced, and the economical performance and the driving and riding comfort are improved.

    本申请提供一种制动能量回收方法、装置、设备及介质,应用于整车控制器,在车辆工作在制动工况时,根据电机最大负扭矩和电池最大充电功率,确定车辆最大负扭矩;根据车辆最大负扭矩确定第一扭矩限值,并向底盘控制器发送第一扭矩限值;接收底盘控制器发送的目标扭矩,目标扭矩为底盘控制器根据第一扭矩限值确定得到;判断目标扭矩是否大于第一扭矩限值;若是,则确定电机输出扭矩为第一扭矩限值进行制动能量回收,否则,则确定电机输出扭矩为目标扭矩进行制动能量回收,比较目标扭矩值和第一扭矩限值的大小,确定合适的电机输出扭矩,保护电机正常运行,能够在不同情况下尽量多的进行能量回收,降低整车能耗,提升经济性表现和驾乘舒适性。


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    Title :

    Braking energy recovery method, device, equipment and medium


    Additional title:

    一种制动能量回收方法、装置、设备及介质


    Contributors:
    ZHANG HONGYU (author) / WU DI (author) / ZHU RUI (author) / ZHANG YAO (author)

    Publication date :

    2025-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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