Invention Grant
- Patent Title: Electronically controlled range valve for multi-speed planetary transmission
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Application No.: US14514022Application Date: 2014-10-14
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Publication No.: US09765877B2Publication Date: 2017-09-19
- Inventor: Charles F. Long , Charles T. Taylor
- Applicant: Allison Transmission, Inc.
- Applicant Address: US IN Indianapolis
- Assignee: Allison Transmission, Inc.
- Current Assignee: Allison Transmission, Inc.
- Current Assignee Address: US IN Indianapolis
- Agency: Barnes & Thornburg LLP
- Main IPC: F16H61/12
- IPC: F16H61/12 ; F16H59/04 ; F16H61/02 ; F16H59/08 ; F16H61/686
Abstract:
A shift by wire control for a multi-speed vehicle transmission is provided. The control includes a shift by wire shift valve in fluid communication with other shift valves and clutch trim valves to provide double blocking features in the neutral range and a reverse range. The shift by wire valve is configured with multiple differential areas to provide failure modes for all forward ranges.
Public/Granted literature
- US20150027259A1 ELECTRONICALLY CONTROLLED RANGE VALVE FOR MULTI-SPEED PLANETARY TRANSMISSION Public/Granted day:2015-01-29
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