Vehicle transmission comprising a parking brake and method...

Details Vehicle transmission comprising a parking brake and method... Vehicle transmission comprising a parking brake and method...

2005-07-13

2010-10-12

Bonck, Rodney H (Department: 3655)

192 clutches and power-stop control

Transmission and brake

Motor vehicle

C701S070000

Reexamination Certificate

active

07810626

ABSTRACT:
A vehicle transmission having shifting elements (A-E) and a parking brake for locking a drive train output and a method for controlling the transmission. Activation of the parking brake depends on a driver's control action. Deactivating the parking brake, when the vehicle is on a slope greater or lesser than a preset value and depending on the slope, a combination of shifting elements (A, D) or (B, D) frictionally slip, such that the output rotates against the strain on a parking brake locking element, caused by the slope, to partially eliminate this strain. Next, one of shifting elements (C, A or B) engages locking the output. The parking brake is then released and finally, the engaged shifting element (C or A or B) is disengaged in a regulated manner, such that the output can be driven according to the driver's control action.

REFERENCES:
patent: 5964335 (1999-10-01), Taniguchi et al.
patent: 6354422 (2002-03-01), Kim
patent: 6736754 (2004-05-01), Davids et al.
patent: 100 40 127 (2002-02-01), None
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patent: 2001-289317 (2001-10-01), None
patent: 2001-295922 (2001-10-01), None
patent: 2002-295657 (2002-10-01), None
patent: 2003-207039 (2003-07-01), None

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