Disable control for four wheel steer vehicle
US6488113B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2001 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Jun 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D7/159
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A disable control system for a four-wheel steer vehicle disables rear-wheel steer capability when desired. The rear-wheel steer mechanism is responsive to, and at a fractional proportion of, the front wheel steering as a function of vehicle speed. The disable function operates in the dual, i.e. both front and rear steering mode only. The vehicle also includes a normal user selectable single steering mode, wherein only the front wheels are capable of being steered. Upon disablement of the rear wheel steering response, the control system automatically switches to the single steering mode, thus returning the rear wheels to a centered, zero steer angle, position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.