Electro-hydraulic control system and method for a dual clutch transmission
US8738257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic control system for a dual clutch transmission includes a plurality of pressure and flow control devices and logic valve assemblies in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.