The invention relates to the technical field of vehicle engineering, in particular to a torque control method and device for a hybrid electric vehicle, and the method comprises the steps that after an adjustment request of a clutch of the vehicle is received, a first working mode of the vehicle is switched into a transmission mode of the vehicle; in the process of switching the first working mode to the transmission mode, the rotating speed torque of the vehicle is adjusted to be the rotating speed control torque of the transmission mode, and the vehicle is controlled through the rotating speed control torque in the transmission mode; when the rotating speed difference between the rotating speeds of the two ends of the clutch is not larger than a rotating speed difference threshold value, the transmission mode is switched into a second working mode of the vehicle; and in the second working mode, the rotating speed torque of the vehicle is controlled through the engine. According to the method, in the working mode switching process of the power source of the hybrid electric vehicle, the rotating speed torque of the vehicle is controlled to conduct smooth transition, the loading torque on an engine during switching is reduced, and therefore the control stability of the vehicle is enhanced.

    本发明涉及车辆工程技术领域,尤其涉及一种混合动力汽车的扭矩控制方法及装置,该方法包括:在接受到车辆的离合器的调整请求后,将车辆的第一工作模式切换为车辆的传动模式;在将第一工作模式切换为传动模式的过程中,将车辆的转速扭矩调整为传动模式的转速控制扭矩,并在传动模式中以转速控制扭矩控制车辆;当离合器的两端的转速之间的转速差不大于转速差阈值时,将传动模式切换为车辆的第二工作模式;在第二工作模式中,通过发动机控制车辆的转速扭矩。该方法在混合动力汽车的动力源的工作模式切换过程中,控制车辆的转速扭矩进行平滑过渡,减少切换时对发动机的加载扭矩,以增强车辆的控制稳定性。


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    Title :

    Torque control method and device for hybrid electric vehicle


    Additional title:

    一种混合动力汽车的扭矩控制方法及装置


    Contributors:
    ZHANG SHUN (author) / TANG XIONGWEI (author) / WANG DAWEI (author) / XIE CHENG (author) / PENG YONGJIN (author)

    Publication date :

    2022-02-11


    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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