The invention discloses a torque control method of an electromechanical coupling double-clutch hybrid power system. A vehicle control unit distributes torque required by a driver, and the vehicle control unit controls an engine management system and a motor control unit to achieve control over engine request torque and motor request torque; then a motor request torque is calculated according to the working condition, and when the actual torque of the engine does not reach the engine request torque, partial torque with slow response of the engine is supplemented by the motor; when the automatictransmission control unit requests intervention in engine torque, the engine request torque drops to a certain target value, and the motor supplements part of torque lost by rapid torque drop of theengine. According to the method, the difference value between the driver torque and the actual engine torque serves as the motor request torque value, the problem that the dynamic property is insufficient and weakened due to the fact that the engine torque response is slow is solved, and the dynamic property and smoothness in the torque interaction process are improved.

    一种机电耦合双离合混合动力系统的扭矩控制方法,由整车控制器对驾驶员需求扭矩进行分配,并由整车控制器分别控制发动机管理系统和电机控制单元以实现发动机请求扭矩和电机请求扭矩的控制;然后根据工况计算电机请求扭矩,并当发动机实际扭矩没有达到发动机请求扭矩时,由电机补充发动机响应慢的部分扭矩;当自动变速箱控制单元请求干预发动机扭矩时,发动机请求扭矩下降至某一目标值,由电机补充发动机快速降扭损失的部分扭矩。本发明以驾驶员扭矩与发动机实际扭矩的差值作为电机请求扭矩值,解决了由于发动机扭矩响应慢导致的动力性不足和减弱问题,提高了扭矩交互过程中的动力性和平顺性。


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    Title :

    Torque control method of electromechanical coupling dual-clutch hybrid power system


    Additional title:

    机电耦合双离合混合动力系统的扭矩控制方法


    Contributors:
    LI LIANHUAN (author) / LI YU (author) / TANG YING (author) / LYU JUNLEI (author)

    Publication date :

    2020-07-17


    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



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