The invention provides an idling speed control method and system for a hybrid power vehicle. The method comprises the steps: a whole vehicle controller starts an engine; a first rotating speed value of the engine is calculated according to the air conditioner power, whether the engine management system executes engine idling speed control or not is judged according to the current temperature valueand the SOC value of the power battery, and if yes, a first rotating speed control request signal is generated; when the engine is successfully started, the electromechanical coupling system outputszero torque to the engine; and the engine management system calculates a second rotating speed value of the engine according to the inherent load power of the engine, takes the maximum value of the first rotating speed value and the second rotating speed value of the engine as an idling target rotating speed value of the engine, and controls the engine to perform idling rotation according to the first rotating speed control request signal. The engine can be started in a low-temperature environment, so that the heating requirement of the vehicle air conditioner is met, and the service life of the power battery is not damaged.

    本发明提供一种混合动力车辆的怠速转速控制方法及系统,该方法包括步骤:整车控制器启动发动机;根据空调功率计算发动机第一转速值,并根据动力电池的当前温度值和SOC值,判断是否由发动机管理系统执行发动机怠速转速控制,若是,则生成第一转速控制请求信号;当发动机启动成功时,机电耦合系统对发动机输出零扭矩;发动机管理系统根据发动机的固有负载功率,计算发动机第二转速值,还将发动机第一转速值和发动机第二转速值中的最大值作为发动机怠速目标转速值,且根据第一转速控制请求信号控制发动机进行怠速转动。本发明在低温环境下可以启动发动机,以满足车辆空调的采暖需求,而且还不会损害动力电池的使用寿命。


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    Titel :

    Idling speed control method and system for hybrid power vehicle


    Weitere Titelangaben:

    一种混合动力车辆的怠速转速控制方法及系统


    Beteiligte:
    XIE ZHAOYI (Autor:in) / SUN RUIXUE (Autor:in) / WU DAN (Autor:in) / WANG DEZHENG (Autor:in) / ZHANG XINYU (Autor:in) / GAO HONG (Autor:in)

    Erscheinungsdatum :

    2020-04-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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