Control apparatus for hydraulically operated vehicular transmiss

Details Control apparatus for hydraulically operated vehicular transmiss Control apparatus for hydraulically operated vehicular transmiss

1997-09-23

1999-09-07

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477 55, 74336R, F16H 6106

Patent

active

059478640

ABSTRACT:
Manual speed changing is performed in a shorter time without giving rise to shocks. For that purpose, at the time of manual speed changing, a hydraulic pressure QUPON of a hydraulic engaging element on the engaging side is corrected by boosting. A correction value QUPONX before starting of an inertia phase and a correction value QUPONY after starting of the inertia phase are separately set. By making QUPONX>QUPONY, the time required for manual speed changing as well as the shocks at the time of speed changing are reduced.

REFERENCES:
patent: 4724723 (1988-02-01), Lockhart et al.
patent: 5188005 (1993-02-01), Sankpal et al.
patent: 5393275 (1995-02-01), Okada et al.
patent: 5415056 (1995-05-01), Tabata et al.
patent: 5527236 (1996-06-01), Kimura et al.

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