System and method for improved double transition shift operations for automatic transmissions
US8862352B2 · kind B2 · utility
1Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2306/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control system for an automatic transmission includes a double transition shift detection module and first and second clutch control modules. The double transition shift detection module detects whether a double transition shift operation is requested. The first clutch control module controls two of four transitioning clutches of the transmission during an inertia phase of the double transition shift operation. The second clutch control module controls each of the four transitioning clutches of the transmission during a torque phase of the double transition shift operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.