The invention discloses a power system control method of a series-parallel hybrid electric vehicle. The method comprises the following steps that: a VCU receives a man-machine interaction instruction,and a driver inputs a driving demand signal into a power system through an EGS, an accelerator pedal and a brake pedal; after receiving the signal input by the EGS, the VCU judges the willingness ofthe driver, converts the willingness into a control instruction, and sends a torque demand to the PCU and the EMS in combination with an accelerator pedal instruction; and the PCU and the EMS controlthe drive motor and the engine to output torque, power is transmitted to the wheel ends through a gear mechanism of the hybrid power gearbox, and the vehicle is driven to run. By the adoption of the technical scheme, the vehicle can be smooth and high in power during mode switching and power distribution, and energy consumption is low; the power system is simpler and safer to control; the oil consumption is effectively reduced, the drivability and fuel economy of the whole vehicle are improved, and the environment-friendly power system control method is more beneficial to energy conservation.

    本发明公开了一种混联式混合动力汽车的动力系统控制方法,VCU接收人机交互指令,驾驶人员通过EGS、加速踏板、制动踏板将行驶需求信号输入动力系统;VCU接收到EGS输入的信号后,判断驾驶人员的意愿,并转化为控制指令,结合加速踏板指令,向PCU、EMS发送扭矩需求;PCU及EMS控制驱动电机及发动机输出扭矩,通过混合动力变速箱的齿轮机构将动力传递到车轮端,驱动车辆行驶。采用上述技术方案,使得车辆在模式切换,动力分配时可以做到平顺且动力强劲,而且能耗低;动力系统的控制更简单、更安全;有效降低油耗,提升整车的驾驶性和燃油经济性,环境的友好型的动力系统控制方法更有利于能源的节约。


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    Title :

    Power system control method of series-parallel hybrid electric vehicle


    Additional title:

    一种混联式混合动力汽车的动力系统控制方法


    Contributors:
    YAN ZHENJIANG (author) / LIU ZHAOCAI (author) / HAO WEI (author) / HE ZENGXIN (author) / RAN KESU (author) / ZHANG CHAO (author)

    Publication date :

    2021-03-26


    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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