Vehicle steering control without mechanical connection between the steering wheel and the steered wheels
US8036793B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2006 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Feb 5, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D7/159
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steering control system is provided for a vehicle with a steered wheel. The vehicle includes a control member that maneuvers within a range between leftward and rightward stops, and that delivers a requested steering signal. The steering control system includes: an actuator that acts on a steering angle of a steered wheel, and a controller that determines a control angle for controlling the actuator to steer the vehicle. The controller includes: a first unit that determines, according to the vehicle's speed and a parameter characteristic of the vehicle's equilibrium, a maximum steering angle on a steered wheel of an equivalent bicycle model of the vehicle, a second unit that determines a gearing-down ratio according to the range of the control member and the maximum steering angle, and a third unit that determines a steering angle according to the gearing-down ratio and the requested steering signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.