Shifting control system for automotive automatic power transmission with enhanced variable shift pattern selection depending upon a resistance based upon vehicle acceleration and an engine parameter
US5231582A · kind A · utility
37Cited by
24References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Sep 1, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H59/74
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shift control system detects a traveling resistance as a factor influencing the vehicular driving performance. The shift control system varies preset shift pattern according to the detected traveling resistance of the vehicle for optimizing selection of the shift pattern. The shift control system thus controls the speed ratio of an automatic power transmission depending upon the control parameters, such as an engine load and a vehicle acceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.