The invention relates to an electric vehicle brake control method and circuit and an electric vehicle, and the electric vehicle brake control method comprises the steps that whether the electric vehicle receives a brake signal or not is judged, and if yes, brake feedback energy generated by brake is absorbed through a brake resistor arranged in the electric vehicle; and when the characteristic value of the braking signal exceeds a preset threshold value and the braking force of the electric vehicle does not reach a preset braking force standard, the braking feedback energy generated by braking is absorbed through a power battery arranged in the electric vehicle, or the braking feedback energy generated by braking is absorbed through a braking resistor and the power battery arranged in the electric vehicle. Resistance energy consumption braking is used as a priority braking mode, loss of a power battery caused by energy feedback battery braking in a traditional braking mode is reduced, the service life of the power battery is prolonged, further, braking feedback energy generated by braking is absorbed through an energy storage device and used for supplying power to a motor, and the energy utilization rate can be further increased.

    本申请涉及一种电动汽车制动控制方法、电路及电动汽车,电动汽车制动控制方法包括判断电动汽车是否接收到制动信号,若是,通过电动汽车中设置的制动电阻吸收制动产生的制动回馈能量;在制动信号的特征值超出预设阈值,且,电动汽车的制动力未达到预设制动力标准时,通过电动汽车中设置的动力电池吸收制动产生的制动回馈能量,或,通过电动汽车中设置的制动电阻和动力电池吸收制动产生的制动回馈能量。本申请通过电阻能耗制动为优先制动方式,减少传统制动方式以能量回馈电池制动对动力电池的损耗,延长动力电池使用寿命,进一步的,通过储能装置吸收制动产生的制动回馈能量,并用于为电机供电,可以进一步提高能量利用率。


    Access

    Download


    Export, share and cite



    Title :

    Electric automobile brake control method and circuit and electric automobile


    Additional title:

    电动汽车制动控制方法、电路及电动汽车


    Contributors:

    Publication date :

    2022-07-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



    Electric automobile brake control method and electric automobile

    ZHANG WEI | European Patent Office | 2020

    Free access

    Brake control method of electric automobile and electric automobile

    DING DING / HUANG KUN / XIA TIANXING et al. | European Patent Office | 2023

    Free access

    Automobile electric brake device and automobile

    JIANG YINGHAO / ZHU XING | European Patent Office | 2021

    Free access

    ELECTRIC AUTOMOBILE BRAKE CONTROL APPARATUS

    SHIMIZU AKIRA / HANDA KAZUNARI / IKOMA NORIHIKO et al. | European Patent Office | 2017

    Free access

    Electric automobile brake control system

    HAN FEI | European Patent Office | 2024

    Free access