The invention provides an electric vehicle range extender rotating speed control method and system and an electric vehicle, a basic range extender rotating speed control system simulation model is built by using a backstepping method, and oil injection timing, air inlet parameters, an ignition advance angle and a load torque are set to enable the rotating speed of a range extender to rise in a step manner; the output rotating speed is recorded and fast Fourier transform is carried out to obtain an engine torque ripple model, and then repetitive controller parameters and an FIR filter are designed, so that the rotating speed fluctuation of the range extender can be reduced to a great extent, the design is simple, the controller design cost is reduced, the problems that the rotating speed fluctuation of the range extender is large and the range extender is difficult to control are solved, and the reliability of the range extender is improved. The method is applied to the range extender rotating speed control field.
本发明提供一种电动汽车增程器转速控制方法、控制系统及电动汽车,利用反步法搭建基础的增程器转速控制系统仿真模型,通过设置喷油正时、进气参数、点火提前角和负载扭矩并使增程器转速阶跃上升,记录输出转速并进行快速傅里叶变换得到发动机转矩纹波模型,再以此设计重复控制器参数以及FIR滤波器,可以很大程度上降低增程器转速波动,且设计简单,降低了控制器设计的成本,解决了增程器转速波动大且较难控制的问题,应用于增程器转速控制领域。
Electric vehicle range extender rotating speed control method and control system and electric vehicle
一种电动汽车增程器转速控制方法、控制系统及电动汽车
2023-07-18
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Range extender control method and range extender control system for extended-range electric vehicle
European Patent Office | 2020
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