System and method of simulating a steering resistance torque on a vehicle steering wheel
US6678595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | May 14, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/008
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention involves a system and method of simulating a steering resistance torque on a vehicle steering wheel of a steer-by-wire system. The steer-by-wire system uses a magnetorheological device and a motor to apply torque on the steering wheel for simulating the steering resistance torque. The method includes sensing an actual angular velocity of the steering wheel, comparing the actual angular velocity with a threshold angular velocity, and calculating a magnetorheological torque signal based on the comparison. The method further includes determining an error signal based on the MR signal and a torque reference signal, and calculating a motor torque signal indicative of motor torque to be applied to the steering wheel. The method further includes applying torque generated by the MR device and the motor on the steering wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.