The invention provides a dual-motor power system and an electric vehicle, the dual-motor power system comprises a first motor and a second motor, one of the first motor and the second motor is a hollow motor, the two motors are coaxially arranged side by side, and a motor shaft of the other motor penetrates out of the hollow motor; the dual-motor power system also includes an output shaft; the first motor and the second motor are in transmission connection with the output shaft; or a gear shifting mechanism is arranged between at least one of the first motor and the second motor and the output shaft, and the gear shifting mechanism is used for achieving power separation and power transmission of more than one gear between the corresponding motor and the output shaft; the output shaft is arranged on one side of the motor shaft in an offset mode, so that the output shaft and the motor shaft have overlapped portions in the axial direction of the input shaft, the length of the dual-motor power system in the axial direction of the input shaft is reduced, the space occupied by the dual-motor power system in the axial direction of the input shaft is small, so that overall arrangement of the electric automobile is better facilitated.
本发明提供了一种双电机动力系统及电动车辆,其中,双电机动力系统包括第一电机、第二电机,第一电机和第二电机中的一个为中空电机,两电机同轴并排布置,另一个电机的电机轴从中空电机中穿出;还包括输出轴,第一电机和第二电机均与输出轴传动连接;或者,第一电机和第二电机中的至少一个与输出轴之间设有换挡机构,其中,换挡机构用于实现对应电机与输出轴之间的动力分离和一挡以上动力传递;输出轴偏置于电机轴的一侧,使输出轴与电机轴在输入轴的轴向方向上具有重叠部分,减小了双电机动力系统在输入轴的轴向方向的长度,使双电机动力系统在输入轴轴向方向上占用的空间较小,从而更加有利于电动汽车的整体布置。
Dual-motor power system and electric vehicle
一种双电机动力系统及电动车辆
2021-05-18
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |