Control system for changing the time period at which torque is increased as a function of the time period at which a clutch is disengaged
US5839987A · kind A · utility
20Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1997 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Apr 28, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0488
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control system for an internal combustion engine for an automotive vehicle increases the output torque of the engine during an upshift of the automatic transmission so as to reduce a shock generated during the upshift. Time periods are measured over which respective speed clutches of the automatic transmission have been disengaged. The timing of increasing the output torque of the engine during the upshift of the automatic transmission is changed, based on one of the time periods measured over which one of the speed clutches of the automatic transmission to be selected for the upshift has been disengaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.