| 摘要 |
PURPOSE: A vehicle transmission system including a sub motor is provided to control the sub motor according to necessary torque, thereby smoothly shifting a gear of an electric vehicle. CONSTITUTION: A vehicle transmission system including a sub motor(700) includes a main motor (200), a connection gear and a control unit. The connection gear connects the main motor with the sub motor. A planetary gear is connected to a shaft of the main motor, and a worm gear (350) is connected to a shaft of the sub motor. The control unit controls the sub motor according to necessary torque. |
