Patent ID: 11970058
Assignee: FCA US LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A three-speed gearbox assembly for an electric drive vehicle, the gearbox assembly comprising:
a housing;
a first planetary gear set configured to selectively connect to an output of an electric motor;
a second planetary gear set rotationally coupled to an output of the first planetary gear set;
a third planetary gear set rotationally coupled to an output of the second planetary gear set and a first axle shaft of the vehicle;
a fourth planetary gear set rotationally coupled to an output of the third planetary gear set and a second axle shaft of the vehicle;
a first clutch configured to selectively couple the electric motor output to the first planetary gear set;
a second clutch configured to selectively ground a first portion of the first planetary gear set and a portion of the second planetary gear set to the housing; and
a selectable one-way clutch (SOWC) configured to selectively ground a second portion of the first planetary gear set,
wherein the gearbox assembly is selectively switchable between (i) a first gear where the SOWC is engaged and the first and second clutches are disengaged, (ii) a second gear where the second clutch is engaged and the first clutch and the SOWC are disengaged, and (iii) a third gear where the first clutch is engaged and the second clutch and the SOWC are disengaged.