Vehicle steering control without mechanical connection between steering wheel and steered wheels
US8046132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2006 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jan 4, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/003
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle steering control system includes a controller for determining control angles for actuators used for steering the vehicle based on at least a speed of the vehicle and a steering signal. The controller includes a unit, a module, and a block. The unit determines an equivalent steering angle of a steered wheel of an equivalent bicycle model according to the steering signal, and also determines a transverse coordinate of an instantaneous center of rotation of the vehicle. The module controls a steering behaviour of the vehicle to enable a longitudinal coordinate of the instantaneous center of rotation of the vehicle to be determined from the speed of the vehicle and a maximum transverse acceleration parameter of the vehicle. The block determines the control angles from the longitudinal coordinate and the transverse coordinate. The maximum transverse acceleration parameter of the vehicle is fixed for the vehicle or is variable based on conditions of operation of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.