The invention discloses a hybrid electric vehicle engine starting control method, a vehicle control unit, a control system and a hybrid electric vehicle. According to the scheme, in the engine shutdown state of the hybrid electric vehicle, whether the electric quantity of a power battery is reduced to be below a first electric quantity threshold value or not is monitored; if yes, further determining whether the hybrid electric vehicle runs in the preset lane at the current moment, if yes, further obtaining a traffic light state of the preset lane where the hybrid electric vehicle is located at the current moment, and if the traffic light state is a red light state, keeping the engine in a shutdown state; suddenly starting of the engine under the condition of short-time parking or deceleration preparation for short-time parking is avoided, the duration time of the red light state is generally short, and the power failure risk cannot be caused; and when the traffic light is in a non-red-light state, the engine is started to prevent the power failure risk of the power battery due to too low electric quantity. On the premise that the emission requirement is met and the power failure risk does not occur, the overall quality of NVH of the hybrid electric vehicle is improved.

    本申请揭示一种混合动力汽车发动机启动控制方法、整车控制器、控制系统及混合动力汽车,该方案在混合动力汽车的发动机停机状态下,监测动力电池电量是否下降至第一电量阈值以下,若是,则进一步确定混合动力汽车当前时刻是否在预设车道行驶,若是,进一步获取混合动力汽车当前时刻所在预设车道的红绿灯状态,若红绿灯状态为红灯状态,保持发动机为停机状态,避免在短时停车或减速准备短时停车的情况下发动机突然启动,且红灯状态通常持续时间较短,不会导致发生掉电风险;当红绿灯状态为非红灯状态,则启动发动机,防止动力电池由于电量过低发生掉电风险。本申请实现了在满足排放要求和不发生掉电风险的前提下,改善混合动力汽车NVH的整体品质。


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    Title :

    Engine starting control method, controller, control system and hybrid electric vehicle


    Additional title:

    发动机启动控制方法、控制器、控制系统及混合动力汽车


    Contributors:
    ZOU JIAYUAN (author) / ZHU YONGMING (author) / ZHONG ZHENYUAN (author) / ZHANG CHEN (author) / PAUL ZENG (author)

    Publication date :

    2023-09-22


    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 / G06V



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