Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Reexamination Certificate
2007-02-14
2010-06-15
Pang, Roger (Department: 3655)
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
C477S906000, C074S335000, C192S003540
Reexamination Certificate
active
07736269
ABSTRACT:
An electro-hydraulic control system is provided for a transmission, which is preferably a countershaft transmission, that has a three-position dog clutch actuator valve to control the position of a three-position dog clutch. At least one of the positions of the dog clutch actuator valve is established by pressurized fluid directed to the dog clutch actuator valve by two logic valves, both of which are controlled to direct pressurized fluid elsewhere in the hydraulic control system, as well.
REFERENCES:
patent: 4495839 (1985-01-01), Morscheck
patent: 4766774 (1988-08-01), Tamai
patent: 4805750 (1989-02-01), Nitz
patent: 5054369 (1991-10-01), Wardle et al.
patent: 5329826 (1994-07-01), Graves et al.
patent: 5588327 (1996-12-01), Downs et al.
patent: 5851164 (1998-12-01), Habuchi et al.
patent: 6343520 (2002-02-01), Ohashi et al.
patent: 6520881 (2003-02-01), Long et al.
patent: 6585617 (2003-07-01), Moorman et al.
patent: 6883394 (2005-04-01), Koenig et al.
patent: 7140993 (2006-11-01), Long et al.
patent: 7285066 (2007-10-01), Long et al.
patent: 7288039 (2007-10-01), Foster et al.
patent: 7322899 (2008-01-01), Long et al.
patent: 7395837 (2008-07-01), Foster et al.
patent: 7510496 (2009-03-01), Long et al.
patent: 2007/0117671 (2007-05-01), Long et al.
patent: 2008/0176700 (2008-07-01), Long et al.
patent: 2008/0182719 (2008-07-01), Long et al.
patent: 2009/0075772 (2009-03-01), Ellis et al.
Hagelskamp Bryan H.
Long Charles F.
GM Global Technology Operations Inc.
Pang Roger
Quinn Law Group PLLC
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