The invention relates to the technical field of electric vehicle manufacturing, and discloses an electric vehicle torque slope multi-section type control method which comprises the following steps that 1, a vehicle control unit rapidly completes forward unloading of a torque instruction; 2, the motor controller quickly responds to the load reduction slope of the vehicle control unit in Q1 to Q2; 3, the driving motor system keeps Q2 value output; 4, judging whether the target torque of the vehicle control unit has a zero-crossing demand or not, if not, keeping Q2 value output, and if not, executing the step 5; 5, reducing the output torque to a Q3 value; 6, reversely jumping the output torque into-Q4; 7, the driving motor system completes switching and attaching of the transmission gear meshing faces; and 8, the output torque of the driving motor system is output along with a whole vehicle control instruction. According to the technical scheme, when the output torque of the driving motor system is reversed, mechanical impact and noise can be reduced, the reliability of a transmission system is improved, and the service life of the transmission system is prolonged.

    本发明涉及电动车制造技术领域,公开了一种电动车扭矩斜率多段式控制方法,包括以下步骤:步骤1:整车控制器快速完成扭矩指令的正向卸载;步骤2:电机控制器在Q1到Q2内快速响应整车控制器降载斜率;步骤3:驱动电机系统保持Q2值输出;步骤4:判断整车控制器的目标扭矩是否有过零需求,若否,则保持Q2值输出,否则,按步骤5执行;步骤5:输出扭矩降低至Q3值;步骤6:输出扭矩反向跳变为‑Q4;步骤7:驱动电机系统完成传动齿轮啮合面的切换与贴靠;步骤8:驱动电机系统输出扭矩跟随整车控制的指令输出。本发明的技术方案使得驱动电机系统输出扭矩在换向时,能降低机械冲击和噪音,提升传动系统的可靠性和使用寿命。


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    Title :

    Multi-section type control method for torque slope of electric vehicle


    Additional title:

    一种电动车扭矩斜率多段式控制方法


    Contributors:
    HAN MING (author) / PENG XI (author) / DENG JIAFEI (author)

    Publication date :

    2023-10-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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