Method for determining the angular position of the steering wheel of an automobile vehicle electric power-assisted steering system
US7555402B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Feb 13, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D15/0235
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The method consists in: determining in which actually sector the booster motor is located, a sector of the booster motor being defied by two successive poles; determining a relative angle position of the steering wheel in relation to the booster motor; identifying a sector, known as neutral, in which the booster motor is located when the rotation speeds of the rear wheels, i.e. right and left of the vehicle, are equal; determining an angle offset of the steering wheel corresponding to a neutral angle position of the steering wheel; determining an absolute angle position of the steering wheel which is equal to the difference between the relative angle position of the steering wheel and the offset angle thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.