The invention discloses an automatic gear shifting rear axle assembly which comprises a multi-gear main reducing gear, a differential mechanism, a left axle pipe and a right axle pipe. A left half axle and a right half axle of the differential mechanism are in rotary fit with the left axle pipe and the right axle pipe in a corresponding supporting manner respectively, and power is output to a left wheel axle and a right wheel axle of a vehicle. The multi-gear main reducing gear is provided with an engagement sleeve used for gear shifting, a shifting fork assembly used for driving the engagement sleeve to move in the axial direction, a power assembly used for driving the shifting fork assembly to do reciprocating motion for gear shifting and a shifting fork position detection device, and the shifting fork position detection device is used for detecting the position of the shifting fork assembly, and therefore the power assembly is controlled to move. The automatic gear shifting rear axle assembly has few gear shifting elements, is fast in gear shifting response and meanwhile has high gear shifting precision, and therefore the situation that gear shifting is not in place is avoided.
Automatic gear shifting rear axle assembly
2015-11-25
Patent
Electronic Resource
English
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 |