The invention provides a bridge driving system and a vehicle. The electric bridge driving system comprises two electric bridge driving units which are coaxially arranged. Each bridge driving unit comprises a motor and a transmission which are coaxially arranged. Further, the transmission comprises two planet rows, and at least one part of the transmission is overlapped with the motor in the axial direction of the bridge driving system. Therefore, the overall axial size of the bridge driving system can be reduced, the space occupied by the whole bridge driving system is saved, and the structural layout of the vehicle comprising the bridge driving system is facilitated. Besides, the power source of the transmission in each bridge driving unit transmits torque to the outside through the two planet rows, so that a torque transmission path with a large transmission ratio can be realized by a relatively compact structure, the torque demand on the motor is reduced, and the cost of the motor can be correspondingly saved.
本申请提供了一种电桥驱动系统及车辆。在本申请的电桥驱动系统中包括同轴布置的两个电桥驱动单元。在每个电桥驱动单元中包括同轴布置的电机和变速器。进一步地,变速器包括两个行星排,并且变速器的至少一部分与电机在电桥驱动系统的轴向上重叠。这样,能够减小电桥驱动系统整体的轴向尺寸,节省整个电桥驱动系统所占用的空间,有利于包括该电桥驱动系统的车辆的结构布局。另外,由于各电桥驱动单元中变速器的动力源经由两个行星排朝向外部传递扭矩,因而能够以相对紧凑的构造实现具有较大传动比的扭矩传递路径,进而减小对电机的扭矩需求,能够相应地节省电机的成本。
Bridge driving system and vehicle
电桥驱动系统及车辆
2025-02-14
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 |