The invention provides a dynamic torque limiting method for an engine with a vehicle body controller, and belongs to the technical field of engine torque control, and the method comprises the following steps that S1, the vehicle body controller collects real-time vehicle signals in the vehicle running process; s2, an entering condition and an exiting condition are set for an automobile power mode, an empty mode, a high-gear torque limiting mode and a normal mode respectively in advance according to automobile signals; and S3, the vehicle body controller sequentially judges whether the vehicle needs to be switched to a power mode, an empty mode, a high-gear torque limiting mode and a normal mode or not according to the real-time vehicle signals, and after the vehicle is switched to the corresponding mode, the engine ignition curve control chart of the corresponding mode is called to control the engine. According to the method, automatic control of different priorities among the modes is carried out through the collected vehicle signals, the method is accurate and reliable, the dynamic property of the vehicle carrying goods during uphill can be guaranteed, and the driving economical efficiency of the no-load vehicle can also be guaranteed.

    本发明提供一种带车身控制器的发动机动态扭矩限制方法,属于发动机扭矩控制技术领域,所述方法步骤如下:S1.车身控制器采集车辆行驶过程中实时的车辆信号;S2.预先根据车辆信号为汽车动力模式、空车模式、高挡限扭模式以及正常模式分别设定进入条件和退出条件;S3.车身控制器根据实时车辆信号依次判断车辆是否需要切换至动力模式、空车模式、高挡限扭模式以及正常模式,并在切换至对应模式后,调用对应模式的发动机点火曲线控制图对发动机进行控制。本发明通过采集的车辆信号进行各模式间不同优先级的自动控制,准确可靠,既能保证载有货物的车辆上坡时的动力性,又能保证空载车辆的行驶经济性。


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    Title :

    Dynamic torque limiting method for engine with vehicle body controller


    Additional title:

    一种带车身控制器的发动机动态扭矩限制方法


    Contributors:
    ZHANG JING (author) / REN XIAOYU (author) / LIU ZHAOYANG (author) / LI WENCHAO (author)

    Publication date :

    2023-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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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