The invention relates to the technical field of vehicles, in particular to a torque distribution method and device of a hybrid electric vehicle, the vehicle and a storage medium, the hybrid electric vehicle comprises a battery, an engine and a motor, and the method comprises the steps that the current state of charge SOC of the battery and the current rotating speed of the engine in a parallel connection mode are obtained; determining the power generation demand torque of the motor according to the current SOC and the current rotating speed, and determining the first distribution torque of the engine according to the actual demand torque, the optimal working interval of the engine and/or the power generation demand torque; and determining a second distribution torque of the motor according to the first distribution torque and the actual demand torque, and correcting the power generation demand torque by using the second distribution torque, or controlling the motor to output the second distribution torque. Therefore, the problems that the electric quantity of the battery is too low, the vehicle driving performance and the driving safety are reduced and the like due to the fact that the torque in the parallel mode is generally distributed based on the steady-state demand torque of the engine and the SOC of the battery is ignored in the related technology are solved.

    本申请涉及车辆技术领域,特别涉及一种混合动力汽车的扭矩分配方法、装置、汽车及存储介质,其中,混合动力汽车包括电池、发动机和电机,其中,方法包括:获取并联模式下电池的当前荷电状态SOC和发动机的当前转速;根据当前SOC和当前转速确定电机的发电需求扭矩,根据实际需求扭矩和发动机的最佳工作区间、以及和/或发电需求扭矩确定发动机的第一分配扭矩;根据第一分配扭矩和实际需求扭矩确定电机的第二分配扭矩,利用第二分配扭矩修正发电需求扭矩,或者,控制电机输出第二分配扭矩。由此,解决了相关技术中通常基于发动机稳态需求扭矩分配并联模式下的扭矩,忽略电池SOC的情况,容易导致电池电量过低、降低车辆行驶性能及行车安全性等问题。


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    Title :

    Torque distribution method and device of hybrid electric vehicle, vehicle and storage medium


    Additional title:

    混合动力汽车的扭矩分配方法、装置、汽车及存储介质


    Contributors:
    ZHAO ZHEN (author) / ZHAO PENG (author) / YING XIANG (author) / BAI YAJING (author)

    Publication date :

    2023-09-01


    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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