Vehicle transmission shift inhibit method and apparatus

Details Vehicle transmission shift inhibit method and apparatus Vehicle transmission shift inhibit method and apparatus

2011-06-07

2011-06-07

Tran, Khoi (Department: 3664)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C701S022000, C701S051000, C701S087000

Reexamination Certificate

active

07957873

ABSTRACT:
A control method is provided including detecting transmission output speed and a forward and reverse shift request, and executing inhibit limits when the detected speed exceeds a predetermined threshold speed. The inhibit limits slow the output speed to zero upon detection of a shift request at output speeds above the threshold, with a pedal progression map executed upon reaching zero output speed. The limits approach zero output torque as vehicle speed increases, reaching zero at a relatively high speed and simulating a neutral transmission upon a detected shift request at high speed. A vehicle is also provided having a transmission, a sensor for detecting transmission output speed, a sensor for detecting a shift request, and a PCM having an algorithm and a threshold transmission output speed. The algorithm inhibits a shift event in the direction opposite that of vehicle travel upon detection when vehicle speed is greater than the threshold.

REFERENCES:
patent: 4638690 (1987-01-01), Hattori et al.
patent: 4955257 (1990-09-01), Terayama et al.
patent: 5390566 (1995-02-01), Kimura et al.
patent: 5647819 (1997-07-01), Fujita et al.
patent: 5893894 (1999-04-01), Moroto et al.
patent: 6049750 (2000-04-01), Adachi et al.
patent: 6052639 (2000-04-01), Ashizawa et al.
patent: 6246940 (2001-06-01), Ochiai et al.
patent: 6259984 (2001-07-01), Kanzaki et al.
patent: 6447417 (2002-09-01), Kanehisa
patent: 6873895 (2005-03-01), Nagano
patent: 7749130 (2010-07-01), Muta et al.
patent: 2003/0109969 (2003-06-01), Yamaguchi et al.
patent: 2004/0229726 (2004-11-01), Wilde et al.
patent: 2005/0077877 (2005-04-01), Cawthorne
patent: 2005/0080523 (2005-04-01), Bennett et al.
patent: 2005/0080537 (2005-04-01), Cawthorne et al.
patent: 2005/0080538 (2005-04-01), Hubbard et al.

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