Automatic transmission control apparatus
US7384358B2 · kind B2 · utility
5Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2006 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Jan 17, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/062
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Each corresponding one of a plurality of friction arrangements, which is driven in an engaging direction to achieve engagement at time of next gear shift to transmit torque, is selected as a standby friction arrangement that is placed in a standby state for implementing the next gear shift. A standby oil pressure for sliding each corresponding one of the plurality of drive pistons, which drives the corresponding standby friction arrangement, is applied to the corresponding drive piston within a range that does not cause transmission of the torque through the corresponding standby friction arrangement before the next gear shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.