The invention provides a hybrid electric vehicle gear shifting control method and system and a hybrid electric vehicle, the hybrid electric vehicle adopts a P4 framework of a front/rear driving motor, the control method is used for obtaining a target rotating speed of the driving motor during gear shifting, and the control method comprises the steps that when the whole vehicle starts to move, the target rotating speed of the driving motor is obtained; acquiring a wheel speed pulse signal and a wheel speed of a wheel driven by the driving motor through an ESP, calculating a rolling radius R of the wheel according to the wheel speed and the wheel speed pulse signal, and storing the rolling radius R; and during gear shifting, the target rotating speed is calculated according to the stored rolling radius, the wheel speed obtained through the ESP and the transmission ratio between the driving motor and the wheels. According to the hybrid electric vehicle gear shifting control method, through calculation of the rolling radius of the wheels, the method can be used for obtaining the gear shifting target rotating speed under tires of different specifications, and the limitation on obtaining of the target rotating speed due to the different specifications of the tires can be overcome.

    本发明提供了一种混合动力汽车换挡控制方法及系统和混合动力汽车,所述混合动力汽车采用前置/后置驱动电机的P4架构,所述控制方法用于换挡时获取所述驱动电机的目标转速,且包括整车开始移动时,通过ESP获取由所述驱动电机驱动的车轮的轮速脉冲信号和轮速,且根据所述轮速和轮速脉冲信号计算所述车轮的滚动半径R,并存储;以及,换挡时,根据存储的所述滚动半径,通过ESP获取的所述轮速,以及所述驱动电机与所述车轮之间的传动比,计算所述目标转速。本发明所述的混合动力汽车换挡控制方法通过车轮滚动半径的计算,能够用于不同规格轮胎下的换挡目标转速的获取,能够克服因轮胎规格不同而对目标转速获取带来的限制。


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    Titel :

    Hybrid electric vehicle gear shifting control method and system and hybrid electric vehicle


    Weitere Titelangaben:

    混合动力汽车换挡控制方法及系统和混合动力汽车


    Beteiligte:
    ZHANG QINGZHU (Autor:in)

    Erscheinungsdatum :

    05.07.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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