Speed change control method for an automotive automatic transmission
US5655995A · kind A · utility
27Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Oct 20, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S477/904
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A degree of sporty driving, or degree of load on tires of a vehicle, is detected based on a usage degree of tire performance. A horizontal force exerted on a tire is calculated and estimated based on longitudinal acceleration and lateral acceleration. Then a ratio, of the horizontal force to a maximum limit gripping force of the tire, is determined to enable detection of the load on a tire at all times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.