Patent ID: 11953089
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. A transmission system associated with a vehicle, comprising:
a first planetary gear set;
a second planetary gear set;
a third planetary gear set;
a shaft configured to rotate about an axis of rotation, the shaft coupled to the first planetary gear set;
a target wheel coupled to the gear set and configured to rotate with the gear set, the target wheel including at least one void;
a giant magnetoresistance (GMR) sensor spaced apart from the target wheel by a gap, the giant magnetoresistance (GMR) sensor configured to observe the at least one void of the target wheel to determine a rotation speed of the shaft based on a giant magnetoresistance (GMR) effect; and
a rotating shell located in the gap between the target wheel and the giant magnetoresistance (GMR) sensor, wherein the shell is coupled directly to a second planet gear of the second planetary gear set and directly to a third planet gear of the third planetary gear set and is configured to rotate independently of the shaft.