The invention provides a brake control method, a brake control device and an electric automobile, the brake control method is applied to the brake control device, and the brake control method comprises the following steps: in a single pedal mode, acquiring a voltage signal of an accelerator pedal and a corresponding voltage change characteristic, and calculating a brake torque demand according to the voltage signal and the corresponding voltage change characteristic; according to the braking torque requirement, first torque arbitration is conducted, and the target electric braking torque is determined; and according to the relation between the target electric braking torque and the motor torque limit value and/or the motor state, a corresponding braking mode is adopted for braking. According to the relation between the target electric braking torque and the motor torque limit value and/or the motor state, the corresponding braking mode can be adopted for braking, a new braking compensation method is provided for the situation that the motor torque limit value is lower than the target electric braking torque and/or the abnormal states such as battery full charge, overheat protection and motor faults, and the braking effect is improved. And the driving braking safety is ensured.

    本申请提供一种制动控制方法、制动控制装置及电动汽车,所述制动控制方法应用于制动控制装置,包括:在单踏板模式下,获取加速踏板的电压信号及对应的电压变化特征,并根据电压信号及对应的电压变化特征计算制动扭矩需求;根据制动扭矩需求,进行第一扭矩仲裁并确定目标电制动扭矩;根据目标电制动扭矩与电机扭矩限值的关系,和/或电机状态,采用对应的制动方式进行制动。本申请能根据目标电制动扭矩与电机扭矩限值的关系,和/或电机状态,采用对应的制动方式进行制动,为电机扭矩限值低于目标电制动扭矩的情况,和/或电池满电、过热保护、电机故障等异常状态,提供一种新的制动补偿方法,保证行车制动安全。


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    Title :

    Brake control method, brake control device and electric vehicle


    Additional title:

    一种制动控制方法、制动控制装置及电动汽车


    Contributors:
    LI WEIQIANG (author) / DU HANBIN (author) / XU HUA (author) / HAN MINGJIA (author) / YANG MINGYU (author)

    Publication date :

    2023-09-12


    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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