The invention relates to a starting torque distribution method and device of a hybrid electric vehicle, the vehicle and a medium, and the method comprises the steps that under the condition that the vehicle is in a low-temperature starting working condition, a first initial distribution target torque of an engine of the vehicle and a second initial distribution target torque of a motor of the vehicle are determined based on current state parameters of the vehicle, the engine and the motor are respectively controlled to lift the output torque; determining a dynamic torque demand and a power generation torque demand of the vehicle based on the current state parameter, and obtaining a first final target torque of the engine and a second final target torque of the motor according to the dynamic torque demand, the power generation torque demand, the actual torque of the engine and the maximum limit discharge power of the motor under the low-temperature starting working condition, and the starting torque is distributed. Therefore, the technical problems that in the related technology, when a P2-configuration hybrid vehicle is controlled through a starting clutch in the starting process, it is difficult to guarantee the control precision of the clutch combining process in the low-temperature environment, the smoothness of the vehicle starting process is poor, and the driving experience of a user is affected are solved.

    本申请涉及一种混合动力汽车的起步扭矩分配方法、装置、车辆及介质,其中,方法包括:在车辆处于低温起步工况的情况下,基于车辆的当前状态参数确定车辆的发动机的第一初始分配目标扭矩和电机的第二初始分配目标扭矩,以分别控制发动机和电机提升输出扭矩;基于当前状态参数确定车辆的动力性扭矩需求和发电扭矩需求,并根据动力性扭矩需求、发电扭矩需求、发动机的实际扭矩和电机在低温起步工况下的最大限制放电功率得到发动机的第一最终目标扭矩和电机的第二最终目标扭矩,以进行起步扭矩分配。由此,解决了相关技术中,P2构型的混动车辆在起步过程中使用起步离合器进行控制,难以在低温环境下保证离合器结合过程的控制精度,使得车辆起步过程的平顺性较差,影响用户的驾驶体验的技术问题。


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    Title :

    Starting torque distribution method and device of hybrid electric vehicle, vehicle and medium


    Additional title:

    混合动力汽车的起步扭矩分配方法、装置、车辆及介质


    Contributors:
    WANG XIAOFENG (author) / ZHANG XUEFENG (author) / LI YAN (author) / YANG YUNBO (author) / YU BOYUAN (author)

    Publication date :

    2025-01-10


    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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