Shift control device of automatic transmission
US7473208B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Jul 9, 2004 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jan 17, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2312/022
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shift control device of an automatic transmission comprising detection means for detecting a shift from a non-drive to a drive position; output means for outputting a command to execute an engine output lowering; detection means for detecting a transmission input revolution number and control means for engaging the friction engagement element by direct pressure control in response to a detection of said transmission input revolution number having been decreased to a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.