Vehicle braking apparatus having understeer correction with axle selection
US6481806B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Oct 31, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2260/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle brake control providing understeer correction through an increase in differential brake pressure favoring the inside wheel applies the increase, in the absence of anti-lock braking activity, across the rear wheels unless one or more sensors indicates a likely low traction condition on the inside rear wheel, in which case the increase is applied to the front pair of wheels. Preferred sensors include a suspension position sensor for the inside rear wheel or other sensor derived information from a suspension control system that indicates large body roll in a turn together with forward body pitch. In the absence of a suspension control system, preferred sensors include vehicle lateral and longitudinal accelerometers indicating vehicle roll and pitch together with a steer angle sensor indicating a significant turn. An indication could also be derived from a normal force sensor on the wheel or normal force information derived from other sensors such as a tire pressure sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.