The invention relates to a vehicle speed control method of a hybrid electric vehicle. The method comprises the following steps: establishing a vehicle dynamics model; designing an improved disturbance observer according to the vehicle dynamics model, and obtaining a disturbance estimation value; a speed control law is designed, the speed control law comprises feedforward control and feedback control, and control input of the improved disturbance observer is determined according to the disturbance estimation value and the speed control law; the motor torque is designed based on the control input of the improved disturbance observer, and the motor torque and the engine torque are dynamically adjusted based on a PID controller of a neural network, so that the vehicle speed dynamically approaches the target vehicle speed. The torque of the vehicle is dynamically adjusted through PID control based on the neural network, and the vehicle speed can dynamically approach the target vehicle speed.

    本申请是关于一种混合动力电动汽车的车速控制方法。该方法包括:建立车辆动力学模型;根据车辆动力学模型设计改进的扰动观测器,并得到扰动估计值;设计速度控制律,速度控制律包括前馈控制和反馈控制,并根据扰动估计值和速度控制律,确定改进的扰动观测器的控制输入;基于改进的扰动观测器的控制输入设计电动机转矩,并基于神经网络的PID控制器对电动机转矩和发动机转矩进行动态调整,以使车速动态逼近目标车速。本申请通过基于神经网络的PID控制对车辆的转矩进行动态调整,能够实现车速动态逼近目标车速。


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    Title :

    Vehicle speed control method of hybrid electric vehicle


    Additional title:

    一种混合动力电动汽车的车速控制方法


    Contributors:
    LI YINGGANG (author) / QIU BOZHI (author) / WANG JIANYUAN (author) / HUA WEI (author)

    Publication date :

    2025-03-07


    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



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