Diagnostic system and method for an electric power steering system
US9106175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2011 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Jan 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/0241
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A diagnostic system and method for an electric power steering system are provided. The diagnostic system includes a first microprocessor that determines a first relative position value indicating the relative rotational position of the rotatable shaft at the first time based on the signals from first and second position sensors. A second microprocessor determines a second relative position value indicating the relative rotational position of the rotatable shaft at the first time based on the signals from third and fourth position sensors. The first microprocessor determines whether the first relative position value is an acceptable value based on a difference between the first relative position value and the second relative position value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.