Method for downshifting of automatic transmission with discrimin

Details Method for downshifting of automatic transmission with discrimin Method for downshifting of automatic transmission with discrimin

1991-11-15

1994-06-14

Braun, Leslie A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

3644241, 477144, 477905, B60K 4116

Patent

active

053199987

ABSTRACT:
In a method for downshifting of an automatic transmission of a vehicle according to an increase of throttle opening, a delay time between a judgement of a requirement of downshifting of the transmission and the execution of the downshifting is determined to base upon change rate of the throttle opening, and when the delay time was counted up, a requirement of downshifting of the transmission is again judged before the execution of any downshifting.

REFERENCES:
patent: 4495576 (1985-01-01), Ito
patent: 4658676 (1987-04-01), Furusawa et al.
patent: 4730519 (1988-03-01), Nakamura et al.
patent: 4733580 (1988-03-01), Kubo et al.
patent: 5016495 (1991-05-01), Takizawa
patent: 5038287 (1991-08-01), Taniguchi et al.
patent: 5161432 (1992-11-01), Matsumoto et al.

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