System for vehicle body roll control detecting and compensating for rapid rate of change of steering angle as during emergency steering
US4807128A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1987 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Feb 20, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In this system for vehicle roll control, one actuator assembly is provided corresponding to each vehicle wheel and resiliently suspends it from the vehicle body. Each of these actuator assemblies is adapted to increase or decrease the vehicle height at its vehicle wheel as a result of a control signal being supplied. Control means are provided corresponding to the actuator assemblies and serve to supply control signals to them. A vehicle speed detecting means senses road speed, a steering angle detecting means senses steering angle, a means senses the rate of change of steering angle, and a means detects the actual roll angle .phi..sub.t of the vehicle body. A computing and control means computes a steady state roll angle .phi..sub..infin. of the vehicle body from the vehicle speed and the steering angle, advances the phase of a signal representative of the steady state roll angle .phi..sub..infin. to thereby compute a compensating value .PHI..sub..infin. of roll angle, computes an amendment value .phi..sub.x of roll angle in accordance with the rate of change of steering angle, computes the difference .phi. based upon the desired roll angle .phi..sub.a of the vehicle body, the com…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.