US 11,754,173 B2
Systems for shaft speed sensing
Angela M Hutcheon, Shelby Township, MI (US); Joel H Gunderson, Canton, MI (US); and Roman Shestakov, Waterford, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Feb. 14, 2022, as Appl. No. 17/650,930.
Prior Publication US 2023/0258262 A1, Aug. 17, 2023
Int. Cl. G01P 3/44 (2006.01); F16H 59/12 (2006.01)
CPC F16H 59/12 (2013.01) [G01P 3/44 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vehicle, comprising:
a transmission system including a shaft configured to rotate about an axis of rotation, the shaft coupled to a gear set, and a non-ferrous housing configured to rotate independently of the shaft;
a shaft sensing system configured to observe a rotation of the shaft about the axis of rotation, the shaft sensing system including:
a sensor target to be coupled to the gear set and configured to rotate with the gear set, the sensor target including at least one target; and
a sensor spaced apart from the sensor target by a gap, the non-ferrous housing positioned within the gap between the sensor and the sensor target, and the sensor is configured to observe the at least one target of the sensor target to determine a rotation speed of the shaft.