Fault-handling system for electric power steering system
US7276873B2 · kind B2 · utility
1Cited by
23References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Mar 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fault-handling system for a 2-phase motor. When an electric motor is used for power assist in a steering system in a vehicle, malfunctions can cause loss of assist, and detectable vibration. The invention utilizes a 2-phase motor in such an application, and implements alternate modes of operation when certain malfunctions occur, thereby maintaining the assist function in situations wherein the function would otherwise be lost or reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.