Patent ID: 9219393
Filing Date: 2015-12-22
Classification: B60K,B60L,B62D,F16H,H02K,Y02T

Abstract:
1. An electric drive system comprising: an electric motor arranged to rotate a drive shaft; a drive planetary gear configuration being in driving engagement with said drive shaft and an output shaft rotatable relative to said drive shaft; and gear assemblies for providing change in rotational speed of said output shaft, wherein said gear assemblies are disposed on opposite sides of the motor respectively, the output shaft is extended through the drive shaft so as to run inside the drive shaft and connected to the drive planetary gear configuration outside the drive shaft, and said gear assemblies are operable between a first state in which the output shaft rotates with a slower rotational speed than the drive shaft, a second freewheeling state, a third state in which the output shaft and the drive shaft rotate with the same rotational speed, and a fourth fully lockup-state in which drive is prevented.