Steering control system for wheeled vehicle
US4679809A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1985 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Sep 9, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D7/159
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control system for steering front wheels and rear wheels of a controlled vehicle has a processing unit such as a microcomputer which determines a desired value of at least one of dynamical variables such as yaw rate, yaw acceleration, and lateral acceleration from sensed steering input and sensed vehicle speed by solving equations of motion of a vehicle in which parameters inherent to the vehicle are set equal to desired values so determined as to provide desired cornering characteristics. From the desired value of the dynamical variable, the processing unit determines desired values of front and rear steering angles of the front and rear wheels required to achieve the desired value of the dynamical variable in the controlled vehicle. The control system further has a front wheel steering actuator for steering the front wheels in accordance with the desired value of the front steering angle, and a rear wheel steering actuator for steering the rear wheels in accordance with the desired value of the rear steering angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.