Method and apparatus for controlling upshift on an automatic transmission
US6090012A · kind A · utility
9Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1999 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Apr 1, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/163
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention provides a device for prohibiting upshift on an automatic transmission which has a controller adapted to select a gear ratio of the automatic transmission. The controller receives an output speed signal representative of a speed of the vehicle and throttle signal representative of a throttle position. Based on this information, the controller prohibits the automatic transmission from upshifting when the throttle position changes from a substantially open position to a substantially closed position at a rapid rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.