Power steering device
US5954152A · kind A · utility
8Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1996 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/065
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power steering device has a hydraulic actuator that generates steering assistance power by using hydraulic fluid fed from a pump driven by a brushless electric motor. The device controls the motor's rotation speed to have a preset steering assistance speed in a steering assistance mode, and a preset standby speed in a steering assistance release mode. The motor rotation speed is set to the steering assistance speed after being set to a maximum speed that exceeds the steering assistance speed in the steering assistance mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.