Electric power steering controller
US6246197A · kind A · utility
23Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1998 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Mar 19, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/046
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
To estimate the rotation speed of the motor for assisting a steering torque regardless of the running state of a vehicle with accuracy, an application voltage estimation value obtained by subtracting a correction voltage obtained based on a detection current value detected by current detection means from the inter-terminal voltage measurement value of the motor is output and the rotation speed of the motor is estimated based on this application voltage estimation value and the detection current value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.