Speed change control method for an automotive automatic transmis

Details Speed change control method for an automotive automatic transmis Speed change control method for an automotive automatic transmis

1994-07-19

1997-04-08

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477 94, 477144, 477901, F16H 6102

Patent

active

056182430

ABSTRACT:
A control section for controlling a gearshift position changeover mechanism of an automatic transmission includes a downshift determination section for determining whether or not a downshift on descending roads is required, and a downshift command section for outputting a downshift command signal when it is determined that downshift is necessary. The downshift determination section is provided with a learning correction section for effecting a learning correction of a determination reference based on a manipulation characteristic of a driver immediately after completion of downshift each time a downshift takes place.

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patent: 5054336 (1991-10-01), Takizawa
patent: 5231897 (1993-08-01), Morita
patent: 5289740 (1994-03-01), Milunas et al.
patent: 5389050 (1995-02-01), Sakai et al.
patent: 5410477 (1995-05-01), Ishii et al.
patent: 5428531 (1995-06-01), Hayafune

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