Vehicle steering apparatus
US7508148B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2003 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Oct 14, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/008
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A current sensor 8a detects a motor current of a steering motor 5 which supplies a steering mechanism 1 with steering force corresponding to the steering amount applied to a steering wheel 2. A main controller 4 extracts component within a predetermined frequency range out of a motor current detected by the current sensor 8a, amplifies the extracted component and drives a reaction force motor 3 in a controlled manner so as to supply the steering wheel 2 with steering reaction force corresponding to the steering amount applied to the steering wheel 2 and steering reaction force corresponding to a current of the component, which has been extracted and amplified. The vehicle steering apparatus constructed as above can supply steering means with steering reaction force corresponding to component within a predetermined frequency range of a motor current of the steering motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.