The invention relates to a two-gear coaxial electric drive axle, which is arranged between a motor and wheels on a power transmission path, is used for transmitting power of the motor to the wheels, and comprises a first planet row, a second planet row, a third planet row and a fourth planet row, the axis of the first planet row is the same as the rotation axis of the wheel; the brake is used for selectively connecting the first planet carrier with a fixed part; and the clutch is used for selectively connecting the first planet carrier with the first sun gear. The planetary gear train is used, a coaxial structure is adopted, the overall size is reduced, a larger arrangement space is brought to the chassis arrangement of the whole vehicle, and the energy density of the whole vehicle is higher due to the fact that the planetary gear trains are connected in series. Meanwhile, due to the application of a wet clutch and a brake gear shifting mechanism, gear shifting without power interruption can be achieved, and the comfort and the driving control performance of the whole vehicle are further improved.
本发明涉及一种两挡同轴电驱动桥,在动力传递路径上设置于电机和车轮之间,用于将电机的动力传递至所述车轮,两挡同轴电驱动桥包括:第一行星排,第一行星排包括第一太阳轮、第一行星架、第一齿圈,第一行星排的轴线与车轮的旋转轴线相同;制动器,制动器用于选择性地将所述第一行星架与固定部件连接;离合器,离合器用于选择性地将所述第一行星架与第一太阳轮连接。本发明使用行星齿轮系且采用同轴结构,缩小了整体尺寸,为整车底盘布置带来了更大的布置空间,整机由于使用了行星齿轮系串联,因此能量密度也更高。同时湿式离合器和制动器换挡机构的应用,可以实现无动力中断换挡,整车的舒适性与驾控性也得到了进一步的提升。
Two-gear coaxial electric drive axle and vehicle
一种两挡同轴电驱动桥及车辆
2024-08-30
Patent
Electronic Resource
Chinese