Machine element or mechanism – Gearing – Interchangeably locked
Reexamination Certificate
2008-05-13
2008-05-13
Wright, Dirk (Department: 3681)
Machine element or mechanism
Gearing
Interchangeably locked
Reexamination Certificate
active
10563417
ABSTRACT:
A method for the control and regulation of a transmission brake in an automatic transmission with a countershaft. The transmission brake arrests a transmission input shaft or a countershaft during an upshifting procedure. The speed of rotation (1) of these shafts at the engagement point in time corresponds to the synchronous speed of rotation already established by the transmission output speed of rotation and the ratio of the selected gear stage or approaches this value up to a predetermined tolerance of deviation. The disengagement point in time for the transmission brake is calculated with the aid of the brake rate of change of the countershaft, i.e., the transmission input speed of rotation as well as with the rate of change of the transmission output shaft speed of rotation. The transmission brake is further provided with disengagement, given consideration of lead time, before the calculated disengagement point in time.
REFERENCES:
patent: 3834499 (1974-09-01), Candellero et al.
patent: 4727764 (1988-03-01), Klaue
patent: 5425689 (1995-06-01), Genise
patent: 5620392 (1997-04-01), Genise
patent: 5822708 (1998-10-01), Wagner et al.
patent: 5910069 (1999-06-01), Markyvech
patent: 5984831 (1999-11-01), Wadas et al.
patent: 6503171 (2003-01-01), Böckmann et al.
patent: 6785598 (2004-08-01), Schiele
patent: 6885928 (2005-04-01), Berglund et al.
patent: 195 44 516 (1997-06-01), None
patent: 196 52 916 (1998-06-01), None
patent: 100 23 053 (2001-12-01), None
patent: 103 05 254 (2004-08-01), None
patent: 0 947 741 (1999-10-01), None
patent: 1 092 582 (2001-04-01), None
patent: WO-85/05427 (1985-12-01), None
Bachmann Volker
Kalthoff Rudolf
Sayman Anthony Robert
Steinborn Mario
Davis & Bujold & Daniels, P.L.L.C.
Wright Dirk
ZF Friedrichshafen AG
LandOfFree
Method for controlling and regulating a transmission brake... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for controlling and regulating a transmission brake..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling and regulating a transmission brake... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3944838