The invention discloses a driving control method and system for an electric vehicle, and the method comprises the steps: inputting a torque error and a flux linkage error of a motor and a capacitor voltage of a three-level inverter into a hysteresis controller, outputting a vector switch table selection signal, and controlling the motor through a vector switch table. Compared with a traditional vector control scheme, the control method is simpler, and complex coordinate transformation does not need to be carried out on a motor model to carry out comparison, equivalence and conversion on an alternating-current motor and a direct-current motor. Meanwhile, a mathematical model of the motor does not need to be simplified for decoupling. The control structure is simple, the physical concept of control signal processing is clear, the torque response of the system is rapid and free of overshoot, the alternating current speed regulation control mode with high static and dynamic performance is achieved, the requirements of the electric automobile on the aspects of acceleration, deceleration, braking and the like can be met, and the performance and driving experience of the electric automobile are improved.
本发明公开了一种电动汽车驱动控制方法及系统,通过利用电机的转矩误差、磁链误差和三电平逆变器的电容电压输入至滞环控制器输出矢量开关表选择信号,通过矢量开关表控制电机,本发明控制方法相比于传统矢量控制方案更加简单,不需要对电机模型进行复杂的坐标变换来将交流电动机与直流电动机进行比较、等效、转化。同时,也不需要为解耦而简化电机的数学模型。其控制结构简单、控制信号处理的物理概念明确、系统的转矩响应迅速且无超调,是一种具有高静、动态性能的交流调速控制方式,可以满足电动汽车在加速、减速和制动等方面的要求,提高了电动汽车的性能和驾驶体验。
Electric vehicle driving control method and system
一种电动汽车驱动控制方法及系统
02.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Electric driving system control method, electric driving system and vehicle
Europäisches Patentamt | 2023
|Electric driving system, electric vehicle and control method
Europäisches Patentamt | 2023
|Electric vehicle driving force control device and electric vehicle driving force control method
Europäisches Patentamt | 2015
|Electric vehicle driving control system and control method
Europäisches Patentamt | 2023
|