The invention discloses a torque distribution method for a hybrid electric vehicle, which comprises the following steps of: S1, acquiring current driving working condition parameters, and determining a current vehicle demand torque comprising a target engine torque and a target motor torque according to the current driving working condition parameters and a torque characteristic diagram; s2, the current cooling liquid temperature is obtained, and the execution torque of a motor and the execution torque of an engine are determined; if the current cooling liquid temperature is smaller than or equal to the first temperature threshold value or larger than or equal to the second temperature threshold value, the execution torque of the motor and the execution torque of the engine are the target motor torque and the target engine torque correspondingly; if the current cooling liquid temperature is larger than the first temperature threshold value and smaller than the second temperature threshold value, a torque correction coefficient is determined according to the current cooling liquid temperature and a preset torque correction diagram, the target motor torque and the target engine torque are corrected according to the torque correction coefficient, and the execution torque of the motor is the corrected motor torque; and the execution torque of the engine is the corrected engine torque, so that the energy consumption of the whole vehicle can be reduced.

    本发明公开了一种混合动力汽车的扭矩分配方法,包括:S1:获取当前行驶工况参数,根据当前行驶工况参数和扭矩特性图确定包括目标发动机扭矩和目标电机扭矩的当前整车需求扭矩;S2:获取当前冷却液温度,确定电机的执行扭矩和发动机的执行扭矩;若当前冷却液温度小于或等于第一温度阈值,或大于或等于第二温度阈值时,电机和发动机的执行扭矩分别为目标电机扭矩和目标发动机扭矩;若当前冷却液温度大于第一温度阈值且小于第二温度阈值,根据当前冷却液温度和预设的扭矩修正图确定扭矩修正系数,根据扭矩修正系数修正目标电机扭矩和目标发动机扭矩,电机的执行扭矩为修正后的电机扭矩,发动机的执行扭矩为修正后的发动机扭矩,能够降低整车能耗。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Torque distribution method of hybrid electric vehicle


    Weitere Titelangaben:

    混合动力汽车的扭矩分配方法


    Beteiligte:
    WANG XIAOHONG (Autor:in) / WU FAN (Autor:in) / JIANG YINING (Autor:in) / JIANG TAO (Autor:in) / TIAN YUNQI (Autor:in) / JIANG FENGFENG (Autor:in) / LIU TAO (Autor:in) / PAN LEYAN (Autor:in)

    Erscheinungsdatum :

    2023-05-16


    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



    Torque distribution method of hybrid electric vehicle

    ZHANG LONGCONG / ZHOU ZHIGUANG / WANG HAILONG et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    Torque distribution method and torque distribution device for hybrid electric vehicle

    GUO SIYANG / JIANG BO / YANG CHAOQUN et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    POWER GENERATION TORQUE DISTRIBUTION METHOD FOR HYBRID ELECTRIC VEHICLE, AND HYBRID ELECTRIC VEHICLE

    WU QINGLONG / ZHANG TIANQIANG / YANG FANG et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Torque distribution method and system for hybrid electric vehicle

    HOU YAO / NAN FUQIAN / YU DONGQING et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Hybrid electric vehicle and torque distribution method and device thereof

    TANG YAMIN / CHEN XINLI | Europäisches Patentamt | 2021

    Freier Zugriff