Method for controlling a steer-by-wire steering system
US8301339B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2005 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jun 19, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D7/09
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method is aimed at controlling a steer-by-wire steering system of a vehicle having at least one steering axle having at least two steer wheels electronically controlled by a control member. In the case of asymmetric adhesion conditions, the method anticipates steering into the skid for the first steer wheel that is on the surface exhibiting the higher coefficient of adhesion—for example asphalt—so as to counter a moment applied to the Z-axis. At the same time, the second steer wheel which is on the surface having the lower coefficient of adhesion—for example a sheet of black ice—remains in the vehicle direction of travel or is oriented towards the second steer wheel in a snow plough mode. The vehicle stability is vastly improved when the vehicle regains an area of uniform adhesion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.