Electric power steering apparatus
US6260655A · kind A · utility
17Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1998 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Aug 7, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0481
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric power steering apparatus includes a motor condition detector for detecting a stationary, i.e., zero-rotating-speed condition of an electric motor, and a motor resistance calculating section for, when the motor is at the zero rotating speed, executing a division of a voltage supplied to the motor and a current flowing through the motor to thereby calculate a winding resistance value of the motor. Thus, the apparatus can determine an actual winding resistance value of the motor at the zero rotating speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.