192 clutches and power-stop control – Transmission control and clutch control – Common control
Reexamination Certificate
2008-05-27
2008-05-27
Lorence, Richard M (Department: 3681)
192 clutches and power-stop control
Transmission control and clutch control
Common control
C192S003630, C192S03000R
Reexamination Certificate
active
10545958
ABSTRACT:
The invention relates to a method for determining a point of application of the clutch of an automatic gearbox without a synchronised reverse action. The aim of said invention is to improve the determination of the point of application avoiding the use of sensorial information on an engine. For this purpose, the point of application is determined as each point of the clutch releasing where a torque transmitted by the gearbox is sufficiently important for releasing the teeth (3) of a sliding sleeve (1) in a tooth-to-tooth position against the teeth (4) of the clutch body (2) of the reverse gear toothed wheel.
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patent: 6769523 (2004-08-01), Muetzel et al.
patent: 2002/0038747 (2002-04-01), Huschka et al.
patent: 2002/0137596 (2002-09-01), Markyvech
patent: 2003/0148852 (2003-08-01), Amendt et al.
patent: 100 34 744 (2001-03-01), None
patent: 0512727 (1992-11-01), None
Davis & Bujold & Daniels, P.L.L.C.
Lorence Richard M
ZF Friedrichshafen AG
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