The invention discloses a stepped overcharge suppression control method for a hybrid electric vehicle and the hybrid electric vehicle. The method combines the current state of the vehicle, the SOC state of a battery, the allowable charging and discharging capacity of the battery, an engine, a generator, a driving motor, a cooling fan and a direct-current PTC heater/electric air conditioner AC. Whether the current battery SOC of the vehicle exceeds a set battery efficient available interval and the actual allowable charging power value of the current battery or not is judged, the battery SOC exceeding the high limit value of the efficient available interval and the battery allowable charging power are segmented, all actuators actively discharge according to a certain priority in a stepped control mode, and it is ensured that the battery SOC cannot continuously rise; according to the method, the battery overcharge danger caused by the actuator deviation under some special working conditions can be avoided, the power deviation of the power system can be balanced, and the service life of the battery is effectively protected.

    本发明公开了一种混合动力汽车阶梯式过充抑制控制方法及混合动力汽车,该方法结合车辆当前状态、电池SOC状态、电池允许充放电能力、发动机、发电机、驱动电机、散热风扇、直流PTC加热器/电动空调AC,判断车辆当前电池SOC是否超过设定的电池高效可用区间及当前电池实际的允许充电功率值,将超过高效可用区间高限值的电池SOC和电池允许充电功率分段,运用阶梯控制方式让各执行器按照一定优先级主动放电,确保电池SOC不会持续攀升;该方法既可以规避执行器偏差导致的某些特殊工况下的电池过充危险,又能平衡动力系统的功率偏差,有效保护电池使用寿命。


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    Title :

    Stepped overcharge suppression control method for hybrid electric vehicle and hybrid electric vehicle


    Additional title:

    混合动力汽车阶梯式过充抑制控制方法及混合动力汽车


    Contributors:
    LI HAIBO (author) / ZHAO TIANFANG (author) / XU FEI (author) / ZHAO JIANHUA (author) / WANG KAI (author)

    Publication date :

    2022-07-08


    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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