Gm Global Technolgoy Operations, Inc.

Angela M Hutcheon

Joel H Gunderson

Roman Shestakov

A transmission system associated with a vehicle includes a shaft to rotate about an axis of rotation. The shaft is coupled to a gear set. The transmission system includes a target wheel to be coupled to the gear set and to rotate with the gear set. The target wheel includes at least one void. The transmission system includes a giant magnetoresistance (GMR) sensor spaced apart from the target wheel by a gap. The giant magnetoresistance (GMR) sensor is 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. The transmission system further includes a rotating shell located in the gap between the target wheel and the giant magnetoresistance (GMR) sensor.

Shaft rotation speed and direction sensing

A transmission system associated with a vehicle includes a shaft to rotate about an axis of rotation. The shaft is coupled to a gear set. The transmission system includes a sensor target to be coupled to the gear set and to rotate with the gear set. The sensor target includes at least one target. The transmission system includes a sensor spaced apart from the sensor target by a gap. The sensor is configured to observe the at least one target of the sensor target to determine a rotation speed of the shaft.

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Shelby Township, MI, United States of America

Angela M Hutcheon