US 12,071,045 B2
Electric seat motor absolute sensor diagnostics
Brian G. Maust, Unionville, MI (US); Christopher R. Douglas, Saginaw, MI (US); Stan Schlatter, Linwood, MI (US); and Andrew E. Maschke, Birch Run, MI (US)
Assigned to Steering Solutions IP Holding Corporation, Saginaw, MI (US)
Filed by Steering Solutions IP Holding Corporation, Saginaw, MI (US)
Filed on Oct. 27, 2021, as Appl. No. 17/511,943.
Claims priority of provisional application 63/106,597, filed on Oct. 28, 2020.
Prior Publication US 2022/0126730 A1, Apr. 28, 2022
Int. Cl. G01D 18/00 (2006.01); B60N 2/02 (2006.01); G07C 5/08 (2006.01)
CPC B60N 2/0244 (2013.01) [B60N 2/02246 (2023.08); G01D 18/00 (2013.01); G07C 5/0808 (2013.01); B60N 2/0268 (2023.08)] 15 Claims
OG exemplary drawing
 
1. A method for sensor diagnostics in a seat suspension system, comprising:
generating, by a rotational position sensor, based on a rotational position of an output shaft coupled to a suspension mechanism to move a vehicle seat relative to a vehicle body, an output signal including a sine output and a cosine output;
determining, based on the sine output and the cosine output, a diagnostic indicator value; and
determining, based on the diagnostic indicator value, an accuracy of the output signal to represent the rotational position of the output shaft.