The invention belongs to the technical field of mode switching control strategies of parallel P2 architecture hybrid vehicles, and particularly provides a parallel P2 architecture mode switching control method and device, and the method comprises the following steps: carrying out energy optimal calculation in a normal pure electric mode and a normal hybrid mode to obtain an energy optimal switching sign; a vehicle speed threshold value and an SOC threshold value in mode switching are calculated based on the gradient, the accelerator and the brake; mode switching conditions are calculated according to the energy optimal switching sign, the vehicle speed threshold value, the SOC threshold value and the actual states of an accelerator, a brake and a clutch; according to the calculated mode switching conditions, mode state switching, clutch control and shifting forbidding mark calculation are achieved, and then mode switching control is conducted. A switching threshold value calculation module is used for calculating a calibration threshold value, and the calibration workload of a vehicle speed threshold value and an SOC threshold value can be reduced while all conditions are covered; the invention relates to clutch control, gear shifting prohibition during vehicle safety and improvement of vehicle safety.

    本发明属于并联P2架构混合动力车的模式切换控制策略技术领域,具体提供一种并联P2架构模式切换控制方法、装置,所述方法包括如下步骤:在正常纯电模式及正常混动模式下进行能量最优计算得到能量最优切换标志;基于坡度、油门、刹车计算模式切换中车速阈值、SOC阈值;根据能量最优切换标志、车速阈值、SOC阈值、油门、刹车、离合器实际状态来进行模式切换条件计算;根据计算的模式切换条件实现模式状态切换、离合器控制及禁止换挡标志计算进而进行模式切换控制。使用切换阈值计算模块计算标定阈值,能在覆盖所有情况同时能减少车速阈值、SOC阈值标定工作量;涉及离合器控制及车辆安全时禁止换挡,提高车辆安全性。


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    Title :

    Parallel P2 architecture mode switching control method and device


    Additional title:

    一种并联P2架构模式切换控制方法、装置


    Contributors:
    LI YANHONG (author) / ZHAI XIAOYAN (author) / FU GUANGLONG (author) / SUN GUANGDI (author) / ZHOU ZAIFANG (author) / WANG YINGXU (author)

    Publication date :

    2023-03-28


    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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