Vehicle control device
US6085137A · kind A · utility
52Cited by
1References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1998 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Jun 25, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0096
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
There is disclosed a vehicle control system that controls an automatic transmission by utilizing road information stored in a navigation system unit. In response to the road information stored in a data memory, the upper-limit of a shiftable gear ratio range is determined, thereby allowing change of the gear ratio only within the restricted range. The actual downshift is carried out in response to initiation of a decelerating operation by the driver, such as release of the accelerator pedal, which prevents unnecessary upshift and provides favorable transmission control in conformity with the driver's intention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.