Transmission control device responsive to road information
US6278928A · kind A · utility
75Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1997 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Dec 9, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/666
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle control device 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 transmission speed range is determined, thereby allowing shift-change only within the restricted transmission range. The actual down-shift is carried out after confirming a decelerating operation by the driver, such as release of the accelerator pedal, thereby providing favorable transmission control in conformity with the driver's intention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.