Patent ID: 9038756
Filing Date: 2015-05-26
Classification: B60K,B60L,B60Y,Y02T,Y10T

Abstract:
1. A propulsion system for a self-propelled vehicle comprising: a single body electric propulsion unit; a clutch coupling located downstream of and mechanically connected to the electric propulsion unit; and a gearbox with discontinuous gear ratios, having an input shaft connected to the clutch coupling and an output shaft coming out to an outside of the motor body; a single ring gear supported by the clutch coupling; a motor body combining together the electric propulsion unit, the clutch coupling, the ring gear and the gearbox; a mechanical drive connecting the output shaft to driving wheels of the vehicle; the electric propulsion unit comprising components of at least two brushless motors, each of the at least two brushless motors including a respective driving shaft including a pinion meshingly coupled to the ring gear in a respective predetermined ratio such that the at least two brushless motors all drive the single ring gear.