Steering force controller for power steering device
US4781263A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Jan 8, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/065
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steering force controller for an automobile power steering device includes a solenoid-operated valve openable and closable by a current applied to a solenoid thereof for controlling a fluid supplied under pressure to a power cylinder for operating steerable wheels, an automobile speed sensor for detecting a speed of travel of the automobile, a steering angle sensor for detecting a steering angle of the steering wheel and issuing a signal indicative of the detected steering angle, a discriminator for determining a running mode of the automobile from a variance of steering angle signals, and a control unit responsive to an output from the discriminator for controlling the current fed to the solenoid dependent on an input signal indicating the automobile speed, according to a respective one of different control patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.