The invention relates to the technical field of hybrid vehicle control, in particular to a hybrid vehicle engine torque control method and device, a medium and a vehicle control unit. The method includes: acquiring engine demand torque; the engine demand torque serves as a control target, and the target output torque of the engine is calculated through a closed-loop control algorithm; and comparing the target output torque of the engine with the engine torque boundary range to determine the current actual output torque of the engine. Compared with currently adopted torque open-loop control, the method has the advantages that an HCU torque distribution strategy and an EMS torque implementation strategy do not need to be changed, and the torque response speed and precision of the engine can be improved only by performing a small amount of calculation processing at a torque interaction interface. From the actual measurement effect, the torque response time is shortened, and the response precision is improved, especially for the driving working conditions of starting acceleration, braking deceleration and dynamic variable working conditions.

    本发明涉及混动汽车控制技术领域,特别涉及一种混动汽车发动机扭矩控制方法、装置、介质及整车控制器。包括:获取发动机需求扭矩;以发动机需求扭矩为控制目标,采用闭环控制算法计算发动机目标输出扭矩;比较发动机目标输出扭矩与发动机扭矩边界范围,确定当前发动机实际输出扭矩。与当前采用的扭矩开环控制相比,本发明不需要改变HCU扭矩分配策略和EMS扭矩实现策略,只需要在扭矩交互接口处做少量计算处理,即可实现发动机扭矩响应速度和精度的提升。从实测效果来看,扭矩响应时间缩短,响应精度提升,尤其是针对起步加速和制动减速和动态变工况的行驶工况。


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    Title :

    Hybrid vehicle engine torque control method and device, medium and vehicle control unit


    Additional title:

    一种混动汽车发动机扭矩控制方法、装置、介质及整车控制器


    Contributors:
    LIU YANG (author)

    Publication date :

    2024-06-14


    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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