Road surface friction coefficient estimating device and road surface friction coefficient estimating method
US8682599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2009 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Jun 26, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2540/18
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A road surface friction coefficient estimating device includes a lateral force detecting section for detecting the lateral force of a wheel during traveling, a slip angle detecting section for detecting the slip angle of the wheel during traveling, and a road surface μ calculating section for estimating the relationship between the detected lateral force and the detected slip angle on the basis of the ratio between the detected lateral force and the detected slip angle, the correlation between the lateral force and the slip angle in the case of the reference road surface, and at least either the detected lateral force or the detected slip angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.