The invention belongs to the technical field of new energy vehicles, and particularly relates to a hybrid electric vehicle and a driving method thereof. The driving method of the hybrid electric vehicle comprises the steps that when the hybrid electric vehicle accelerates, the target rotating speed of an engine is determined according to the battery charge state of a power battery, and the target rotating speed is lower than the maximum rotating speed of the engine; when the rotating speed of the engine reaches the target rotating speed, the rotating speed of the engine is kept unchanged, and the torque of the engine is adjusted according to the required power of a driving motor; and when the driving mode switching condition is met, the driving mode of the hybrid electric vehicle is switched from a range extending mode independently driven by the driving motor to a series-parallel mode jointly driven by the driving motor and the engine. The switching speed of the driving modes of the hybrid electric vehicle can be increased.

    本申请属于新能源汽车技术领域,具体涉及一种混合动力汽车及其驱动方法。该混合动力汽车的驱动方法包括:当混合动力汽车加速时,根据动力电池的电池荷电状态确定发动机的目标转速,所述目标转速低于所述发动机的最大转速;当所述发动机的转速达到所述目标转速时,维持所述发动机的转速不变,并根据驱动电机的需求功率调整所述发动机的扭矩;当满足驱动模式切换条件时,将所述混合动力汽车的驱动模式由所述驱动电机单独驱动的增程模式切换至由所述驱动电机和所述发动机共同驱动的混联模式。本申请可以提高混合动力汽车的驱动模式的切换速度。


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    Title :

    Hybrid electric vehicle and driving method thereof


    Additional title:

    混合动力汽车及其驱动方法


    Contributors:
    RAO JUNWEI (author) / ZHANG ANWEI (author) / ZHOU WENTAI (author) / ZHANG LIANG (author) / ZHENG ZHIWEI (author) / ZHANG XUAN (author)

    Publication date :

    2024-03-19


    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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