The invention provides a control method and device for braking energy recovery of a rear axle drive pure electric vehicle, and the control method comprises the steps: obtaining a brake pedal opening value and an accelerator pedal opening value of the vehicle in response to the condition that a charge state value and a running speed value of the vehicle meet preset conditions, and determining an energy recovery mode of the vehicle; determining a first energy recovery torque of the drive motor using a regenerative braking table based on the traveling speed value in response to the determination of the slip energy recovery mode; or in response to the braking energy recovery mode, whether the braking strength corresponding to the opening value of the braking pedal belongs to the braking strength interval or not is judged; and if yes, determining a second energy recovery torque of the driving motor based on a control strategy corresponding to the braking strength interval, so that the driving motor performs braking control on the vehicle according to the energy recovery torque. By means of the method, the energy recovery efficiency and the running smoothness of the rear-axle-driven pure electric vehicle are improved, and then the running safety of the vehicle is improved.

    本申请提供了一种后轴驱动纯电车辆制动能量回收的控制方法及装置,所述控制方法包括:响应于车辆的荷电状态值和行驶速度值均满足预设条件,获取车辆的制动踏板开度值和加速踏板开度值,确定车辆的能量回收模式;响应于确定为滑动能量回收模式,基于行驶速度值,利用再生制动表确定驱动电机的第一能量回收转矩;或,响应于确定为制动能量回收模式,判断制动踏板开度值对应的制动强度是否所属于制动强度区间;若所属于,则基于制动强度区间对应的控制策略,确定驱动电机的第二能量回收转矩,以使驱动电机按照能量回收转矩对所述车辆进行制动控制。通过上述方法,提高了后轴驱动纯电车辆的能量回收效率和行驶平顺性,进而提高了车辆行驶的安全性。


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    Title :

    Control method and device for braking energy recovery of rear-axle-driven pure electric vehicle


    Additional title:

    一种后轴驱动纯电车辆制动能量回收的控制方法及装置


    Contributors:
    LIN HUI (author) / ZHAO XUEZHAN (author) / TIAN JIAHAO (author)

    Publication date :

    2025-03-28


    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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