Shift control method and system for automatic transmission
US5397284A · kind A · utility
14Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1993 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Aug 31, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0466
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An automobile automatic transmission shift control system, for causing a specific gear shift by unlocking a first frictional element with a simultaneously with locking a second frictional element, discharges locking pressure from the first frictional element in such a way that the locking pressure is throttled after it has dropped below a specified level of pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.