Electric seat motor absolute sensor diagnostics
US12071045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2021 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Nov 8, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/0268
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for sensor diagnostics in a seat suspension system includes: 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. A second method determines accuracy of an output signal to represent a rotational position of the output shaft in a seat suspension system using the output signal and a motor position signal representing a rotational position of a motor shaft coupled to the output shaft such that rotation of the motor shaft causes rotation of the output shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.