The invention relates to a gear shifting control method and device for a hybrid electric vehicle, and the method comprises the steps that a first rotating speed and the vehicle speed of the hybrid electric vehicle are obtained, and the first rotating speed is the rotating speed of a driving motor when an actuator is shifted into a neutral gear from a current gear; calculating a target rotating speed of the driving motor according to the first rotating speed and the vehicle speed; the driving motor is controlled so that the speed of the driving motor can be adjusted to the target rotating speed; and the actuator is controlled so that the actuator can be shifted into the target gear from the neutral gear. Therefore, the cost of the gearbox can be reduced; in addition, even if an output shaft rotating speed sensor arranged in the gearbox breaks down, the target driving motor rotating speed can still be accurately calculated, and therefore the gear shifting quality can be ensured. In addition, calculation errors caused by the fact that the rotating speed of the target driving motor is calculated only based on the vehicle speed can be effectively avoided, and therefore the gear shifting quality can be improved.

    本公开涉及混合动力汽车的换档控制方法及装置,该方法包括:获取第一转速和所述混合动力汽车的车速,所述第一转速是所述驱动电机在执行器自当前档位挂入空档时的转速;根据所述第一转速和所述车速来计算所述驱动电机的目标转速;对所述驱动电机进行控制,以使所述驱动电机被调速至所述目标转速;对所述执行器进行控制,以使所述执行器自空档挂入目标档位。由此,可降低变速箱的成本;另外,即使在变速箱中所设置的输出轴转速传感器发生故障的情况下,仍然能够准确地计算出目标驱动电机转速从而能够确保换档质量;此外,可有效避免由于仅基于车速来计算目标驱动电机转速所导致的计算误差,从而能够改善换档质量。


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    Title :

    Gear shifting control method and device of hybrid electric vehicle


    Additional title:

    混合动力汽车的换档控制方法及装置


    Contributors:
    LUO PINKUI (author) / LI WENZHI (author)

    Publication date :

    2022-11-15


    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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