The invention discloses an electric vehicle regenerative braking control method based on brushless doubly-fed motor driving. The method comprises the steps of converting a brake pedal angle signal ofa driver into an electric signal through a sensor, and transmitting the electric signal to a vehicle control unit; converting rotating speed signals of the wheels into electric signals through a sensor and transmitting to a vehicle control unit; converting a battery electric quantity SOC signal of the energy storage battery system into an electric signal and transmitting the electric signal to a vehicle control unit; calculating corresponding braking strength and regenerative braking force according to the obtained data and the current stress condition of the automobile; and selecting different braking schemes according to the calculated braking strength. The control winding of the brushless doubly-fed motor is controlled, the power factor of the stator power winding end of the brushless doubly-fed motor can be adjusted by changing the voltage of the control winding end, the regenerative braking force of the electric automobile is effectively improved by controlling the brushless doubly-fed motor of the electric automobile, the driving range of the electric automobile is increased. The control method is simple and low in difficulty.
本发明公开了一种基于无刷双馈电机驱动的电动汽车再生制动控制方法,包括将驾驶人的制动踏板角度信号通过传感器转换为电信号传送给整车控制器;将车轮的转速信号通过传感器转换为电信号传送给整车控制器;将储能电池系统的电池电量SOC信号转化为电信号传送给整车控制器;根据得到的数据以及汽车当前受力情况计算出对应的制动强度与再生制动力;根据计算得到的制动强度的大小,选择不同的制动方案。本对无刷双馈电机的控制绕组进行控制,通过改变控制绕组端的电压的方式可以调节无刷双馈电机定子功率绕组端的功率因数,通过控制电动汽车无刷双馈电机的方式有效的提高电动汽车再生制动力的大小,提高电动汽车的续驶里程,控制方法简单,难度小。
Electric vehicle regenerative braking control method based on brushless doubly-fed motor driving
一种基于无刷双馈电机驱动的电动汽车再生制动控制方法
2020-11-10
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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