The invention discloses a motor torque control method and device for engine transient working conditions. The method comprises the steps of: detecting whether the air intake pressure of a turbochargerchanges or not when the end of sudden acceleration assistance of a BSG system is monitored, if so, determining a motor required torque according to the air intake pressure variation and the actual motor torque, and determining an engine required torque by utilizing the vehicle required torque and the motor required torque, using the motor required torque for providing rotating power for the motor, using the engine required torque for providing rotating power for the engine, and continuing to execute the process of detecting whether the air intake pressure of the turbocharger changes or not. On the basis of not changing the mechanical structure of the engine and not increasing hardware, the torque of the motor is controlled by using the air intake pressure change of the engine, so that thetorque of the engine is linearly changed, and the problem of vehicle jerking feeling caused by engine power delay due to direct quitting of the torque of the motor after quick acceleration assistanceis finished is solved.

    本发明公开了一种发动机瞬态工况的电机扭矩控制方法及装置,方法包括:在监测到BSG系统急加速助力结束时,检测涡轮增压器的进气压力是否发生变化;若是,则根据进气压力变化量和电机实际扭矩确定电机需求扭矩,利用整车需求扭矩和电机需求扭矩确定发动机需求扭矩;利用电机需求扭矩为电机提供转动动力,利用发动机需求扭矩为发动机提供转动动力,继续执行检测涡轮增压器的进气压力是否发生变化的过程。在不改变发动机机械结构、不增加硬件的基础上,通过使用发动机进气压力变化控制电机扭矩,使发动机扭矩线性变化,解决急加速助力结束电机扭矩直接退出,导致发动机动力延迟造成的车辆顿挫感的问题。


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    Title :

    Motor torque control method and device for engine transient working conditions


    Additional title:

    发动机瞬态工况的电机扭矩控制方法及装置


    Contributors:
    ZHAO XIUMIN (author) / GENG ZONGQI (author) / ZUO LAN (author) / GE NAILIANG (author)

    Publication date :

    2020-04-24


    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 / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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