The invention relates to the technical field of automobile braking energy recovery, in particular to an automobile braking energy recovery method. The method comprises the steps that the vehicle speedand the brake master cylinder pressure of a vehicle are obtained; acquiring a required braking torque according to the vehicle speed and the pressure of a braking main cylinder, and judging a brakingstage of the vehicle, wherein the braking stage comprises a braking initial stage, a braking main stage and a braking end stage; when the vehicle is in the initial braking stage, the required brakingtorque is distributed to a motor, and a hydraulic braking system does not participate in braking; when the vehicle is in a main braking stage, the required braking torque is distributed to a hydraulic braking system and a motor; and when the vehicle is in the braking end stage, the required braking torque is distributed to a hydraulic braking system, and a motor does not participate in braking. The method can solve the problems that an existing electric vehicle braking energy recovery method is poor in braking pedal feeling, and the driving feeling is affected.

    本发明涉及汽车制动能量回收技术领域,具体涉及一种汽车制动能量回收方法。该方法包括:获取车辆的车速和制动主缸压力;根据车速和制动主缸压力获取需求制动扭矩并判断所述车辆的制动阶段,所述制动阶段包括制动初始阶段、制动主要阶段和制动结束阶段;当所述车辆处于制动初始阶段时,所述需求制动扭矩分配给电机,液压制动系统不参与制动;当所述车辆处于制动主要阶段时,所述需求制动扭矩分配给液压制动系统和电机;当所述车辆处于制动结束阶段时,所述需求制动扭矩分配给液压制动系统,电机不参与制动。本发明能够解决现有的电动汽车制动能量回收方法制动踏板感不好,影响驾驶感受的问题。


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    Title :

    Automobile braking energy recovery method


    Additional title:

    一种汽车制动能量回收方法


    Contributors:
    DING XUAN (author) / XIAO SONG (author) / XU QIAN (author)

    Publication date :

    2020-06-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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