Method for improving a drive-to-park shift

Details Method for improving a drive-to-park shift Method for improving a drive-to-park shift

2007-12-25

2007-12-25

Le, David D. (Department: 3681)

Interrelated power delivery controls, including engine control

Brake control

Plural diverse brake means

C192S219500

Reexamination Certificate

active

11137829

ABSTRACT:
According to a preferred embodiment of the present invention, a clutch is applied when the vehicle comes to a stop. The application of this clutch locks the output shaft with energy stored therein. When the shift selector is then moved to the park position, the clutch releases the stored energy in a controlled manner by slipping the clutch plates. The controlled slipping reduces the noise as the park pawl tooth contracts an output gear tooth.

REFERENCES:
patent: 5211079 (1993-05-01), Runde et al.
patent: 6619460 (2003-09-01), Carlsson et al.
patent: 6631796 (2003-10-01), Yanaka et al.
patent: 6802571 (2004-10-01), Ishimaru et al.
patent: 6878096 (2005-04-01), Winner et al.
patent: 7204785 (2007-04-01), Berger et al.
patent: 2004/0226768 (2004-11-01), DeLuca et al.
patent: 2005/0257632 (2005-11-01), Runde et al.

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