The invention provides an engine torque calibration method and device and a vehicle controller, and belongs to the field of vehicle control, and the method comprises the steps that the engine target torque and the generator signal torque of a hybrid vehicle are obtained; calculating the torque deviation of the hybrid vehicle according to the engine target torque and the generator signal torque; and calculating the engine demand torque of the hybrid vehicle based on torque deviation self-learning, and calibrating the engine signal torque based on the engine demand torque, so that the engine signal torque, the generator signal torque and the engine target torque of the hybrid vehicle are consistent. According to the embodiment of the invention, the problems of poor oil consumption performance and poor drivability under low-temperature limit working conditions caused by too large real torque of the engine are solved, the problem of unbalanced electric quantity in the emission cycle test process caused by too small real torque of the engine is solved, the oil consumption performance of the vehicle is improved by improving the torque precision, and the reliability of the vehicle is improved. The low-temperature drivability of the vehicle is improved, and the electric quantity is easier to balance.

    本发明提供了一种发动机扭矩的校准方法及装置、车辆控制器,属于车辆控制领域,其中,该方法包括:获取混动车辆的发动机目标扭矩和发电机信号扭矩;根据发动机目标扭矩和发电机信号扭矩计算混动车辆的扭矩偏差;基于扭矩偏差自学习计算混动车辆的发动机需求扭矩,并基于发动机需求扭矩校准发动机信号扭矩,以使混动车辆的发动机信号扭矩、发电机信号扭矩、发动机目标扭矩一致。通过本发明实施例,解决了发动机真实扭矩偏大导致油耗性能不佳,以及低温极限工况驾驶性差的问题,解决了发动机真实扭矩偏小,导致排放循环测试过程电量不平衡的问题,通过提高扭矩精度改善了车辆油耗性能,提高了车辆低温驾驶性能,电量更容易实现平衡。


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    Titel :

    Calibration method and device for engine torque and vehicle controller


    Weitere Titelangaben:

    发动机扭矩的校准方法及装置、车辆控制器


    Beteiligte:
    YANG FANGZI (Autor:in) / NIE XIANGHONG (Autor:in) / WEN WENWU (Autor:in) / YANG ZHENGJUN (Autor:in)

    Erscheinungsdatum :

    2023-09-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / 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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