US 12,472,812 B1
Electric motor disconnect system
Lucien Duplessis, Auburn Hills, MI (US); and Mark Levine, Auburn Hills, MI (US)
Assigned to FCA US LLC, Auburn Hills, MI (US)
Filed by FCA US LLC, Auburn Hills, MI (US)
Filed on Oct. 24, 2024, as Appl. No. 18/925,648.
Int. Cl. B60K 1/02 (2006.01); B60K 6/387 (2007.10); B60K 6/46 (2007.10); B60K 17/04 (2006.01); B60K 17/12 (2006.01); B60K 17/16 (2006.01); F16H 48/19 (2012.01); B60K 6/543 (2007.10); B60K 7/00 (2006.01); F16H 48/06 (2006.01); F16H 48/12 (2012.01)
CPC B60K 17/12 (2013.01) [B60K 1/02 (2013.01); B60K 17/046 (2013.01); B60K 17/165 (2013.01); B60K 6/387 (2013.01); B60K 6/46 (2013.01); B60K 6/543 (2013.01); B60K 2007/003 (2013.01); F16H 48/06 (2013.01); F16H 48/12 (2013.01); F16H 48/19 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An electric drive system for an electrified vehicle, the electric drive system comprising:
a driveline including a first drive shaft that drives a first drive wheel and a second drive shaft that drives a second drive wheel;
a first axial flux motor having a first primary output shaft;
a second axial flux motor having a second primary output shaft;
a third axial flux motor positioned between the first and second axial flux motors, the third axial flux motor having a first output shaft that provides a first torque input to the first motor and a second output shaft that provides a second torque input to the second motor;
a differential disposed in the third axial flux motor, the differential providing selective speed differentiation between the first and second output shafts; and
an electric motor disconnect system including a controller, an actuator, a first collar and a second collar, wherein the first collar is movable between:
a connected position that couples (i) the first output shaft and the first primary output shaft for concurrent rotation; and (ii) the second output shaft and the second primary output shaft for concurrent rotation, wherein all of the first, second and third axial flux motors provide rotational drive torque input to the first and second drive wheels in the connected position; and
a disconnected position that decouples (i) the first output shaft and the first primary output shaft; and (ii) the second output shaft and the second primary output shaft.