The invention relates to a double-motor parallel shaft transmission system of an electric vehicle, which comprises a first motor, wherein the first motor is connected with a first gear through a firstshaft, a second motor is connected with a second gear through a second shaft, the transmission ratio of the first gear to a third gear is n1, the transmission ratio of the second gear to the third gear is n2, the two ends of an intermediate shaft are connected with the third gear and the fourth gear respectively, the transmission ratio of the fourth gear to a fifth gear is n3, and the fifth geartransmits torque to wheels through a main speed reducer shaft. The invention further discloses a dynamic control strategy for mode switching of the double-motor parallel shaft transmission system of the electric vehicle. The dynamic control strategy is provided to achieve ideal mode switching of the double-motor parallel shaft transmission system, the ideal vehicle speed expected by a driver and the ideal torque provided by an energy management strategy are tracked, and the two motors are controlled to achieve mode switching without power interruption.
本发明涉及一种电动汽车双电机并轴传动系统,包括第一电机,第一电机通过第一轴与第一齿轮连接,第二电机通过第二轴与第二齿轮连接,第一齿轮与第三齿轮的传动比为n,第二齿轮与第三齿轮的传动比为n,中间轴的两端分别连接第三齿轮和第四齿轮,第四齿轮与第五齿轮的传动比为n,第五齿轮通过主减速器轴将扭矩传递给车轮。本发明还公开了一种电动汽车双电机并轴传动系统的模式切换动态控制策略。本发明提出动态控制策略实现双电机并联轴传动系统的理想模式切换,实现跟踪驾驶员所期望的理想车速和能量管理策略提供的理想扭矩,控制两个电动机以实现无动力中断的模式转换。
Double-motor parallel shaft transmission system of electric vehicle and dynamic control strategy for mode switching
电动汽车双电机并轴传动系统及其模式切换动态控制策略
2020-09-04
Patent
Electronic Resource
Chinese
Optimization of control strategy for a single-shaft parallel hybrid electric vehicle
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