Invention Grant
US08676515B2 System and method for detecting clutch-related faults in an automatic transmission
有权
用于检测自动变速器中离合器相关故障的系统和方法
- Patent Title: System and method for detecting clutch-related faults in an automatic transmission
- Patent Title (中): 用于检测自动变速器中离合器相关故障的系统和方法
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Application No.: US12957872Application Date: 2010-12-01
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Publication No.: US08676515B2Publication Date: 2014-03-18
- Inventor: Charles F. Long , Darren J. Weber , John William Edward Fuller
- Applicant: Charles F. Long , Darren J. Weber , John William Edward Fuller
- 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: G01B5/28
- IPC: G01B5/28 ; F16H31/00 ; G06F7/00
Abstract:
A fault diagnostic method for an automatic transmission may include monitoring an operating state of a trim system configured to selectively supply clutch engagement pressure and exhaust to at least one clutch control valve, determining an expected operating state of the trim system based on current operating conditions of the transmission, and generating a fault signal if the monitored operating state of the trim system is different from the expected operating state of the trim system.
Public/Granted literature
- US20110144925A1 System and Method for Detecting Clutch-Related Faults in an Automatic Transmission Public/Granted day:2011-06-16
Information query
