Power steering apparatus
US6883636B2 · kind B2 · utility
1Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Feb 20, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A power steering apparatus for assisting steering by conferring a steering assisting force according to a steering manipulation to a steering mechanism. The apparatus includes an electric motor being driven under control according to the steering manipulation, and a deteriorated condition judging factor storage portion for storing a factor used for judging a deteriorated condition of the electric motor. The factor used for judging the deteriorated condition of the electric motor includes, for example, an accumulated value of load exerted on the electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.