Hydraulic control system for an automatic transmission
US8932167B2 · kind B2 · utility
9Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2013 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Aug 9, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20024
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic control system for a transmission of a motor vehicle includes a source of pressurized hydraulic fluid that communicates with an analog electronic transmission range selection (ETRS) subsystem or a manual valve. The ETRS subsystem includes an ETRS valve, a park servo, a park mechanism, a mode valve, and a plurality of solenoids. The ETRS and manual valve communicate with a clutch actuator subsystem that engages a one-way clutch and six clutches/brakes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.