Invention Grant
- Patent Title: Electronically controlled range valve for multi-speed planetary transmission
- Patent Title (中): 用于多速行星传动的电子控制范围阀
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Application No.: US12510487Application Date: 2009-07-28
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Publication No.: US08371988B2Publication Date: 2013-02-12
- Inventor: Charles F. Long , Charles T. Taylor
- Applicant: Charles F. Long , Charles T. Taylor
- 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: F16H61/26
- IPC: F16H61/26
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
- US20110028270A1 ELECTRONICALLY CONTROLLED RANGE VALVE FOR MULTI-SPEED PLANETARY TRANSMISSION Public/Granted day:2011-02-03
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