System and method for controlling an automatic transmission in a vehicle
US7014592B2 · kind B2 · utility
13Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2003 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Jan 10, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/186
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method for controlling an automatic transmission in a vehicle is provided. The method selectively provides automatic engine braking for the vehicle. When it is determined that automatic engine braking is desired, the upshift schedule is increased, such that a higher vehicle speed is required to upshift for any given accelerator pedal position. The transmission is automatically downshifted to a lower gear to provide engine braking for the vehicle, when a vehicle acceleration threshold is exceeded. The automatic downshifting of the transmission can occur when the brake pedal is engaged, and when the brake pedal is disengaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.