Patent · US Expired

Method of steering a road vehicle with front-wheel steering

US5428536A · kind A · utility

10Cited by

6References

5Claims

0Family size

Assignee

Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. · DE

Inventor

Jurgen Ackermann · Bensberg, DE

Key dates

Filing date	Mar 4, 1994
Grant date	Jun 27, 1995
Priority date	—
Expiry date	Mar 4, 2014

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB62D6/00
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A steering system for a road vehicle with front-wheel steering employs microprocessor integrating feedback of the vehicle yaw rate to the front-wheel steering actuator so as to decouple the yaw movement from the lateral movement of the front axle. Sensors measure vehicle speed, yaw rate (by gyroscope), lateral front axle acceleration (by acceleromether at the front axle), and the angle at which the driver holds the steering wheel. The microprocessor controls the front steering actuator according to a formula whose dependent quantities include the sensor outputs, fixed vehicle parameters (such as wheel base), and a preselected time constant. The vehicle's handling changes when the time constant is varied.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.