The invention relates to the technical field of motor control and particularly relates to a method and a system for eliminating automobile gear engaging jitter based on a motor controller. The methodcomprises the following steps: when a gear engaging signal is detected, a motor output torque is controlled to be gradually increased to a starting torque at a constant change rate within first presettime, then the motor output torque is controlled to be kept in the starting torque state for second preset time, and the motor output torque is controlled to be gradually increased to an idling torque at the constant change rate within third preset time, so that gear engagement is completed. According to the method and the system provided by the embodiment of the invention, under the condition that the equipment cost of the system is not increased, the change of the output torque of the motor is controlled to reduce the impact jitter of the gear during gear engaging starting torque, so that the jitter of the whole vehicle is eliminated, and the comfort of the whole vehicle is improved.

    本发明涉及电机控制技术领域,具体涉及一种基于电机控制器消除汽车挂档抖动的方法和系统,其中方法包括当检测到挂档信号时,控制电机输出转矩在第一预设时间内以恒定的变化率逐渐增大到起步转矩,然后控制电机输出转矩在起步转矩的状态下保持第二预设时间,控制电机输出转矩在第三预设时间内以恒定的变化率逐渐增大到怠速转矩,以完成挂档。通过本实施例的方法和系统,在不增加系统的设备成本情况下,通过控制电机输出转矩的变化以减小挂档起步转矩时齿轮的冲击抖动,从而消除整车抖动,提高整车的舒适性。


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    Title :

    Method and system for eliminating automobile gear engaging jitter based on motor controller


    Additional title:

    一种基于电机控制器消除汽车挂档抖动的方法和系统


    Contributors:
    WEI FUSONG (author) / LIU GANG (author) / PAN WENWU (author)

    Publication date :

    2020-08-21


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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