Up-shift control apparatus to prevent engine racing by increasin

Details Up-shift control apparatus to prevent engine racing by increasin Up-shift control apparatus to prevent engine racing by increasin

1997-07-22

1999-03-02

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477151, 477154, 477155, F16H 6108

Patent

active

058763040

ABSTRACT:
An up-shift control apparatus includes an engine racing detecting means for detecting engine racing during an up-shift and an engine racing preventing means. The up-shift control apparatus is installed to an automatic transmission which executes the up-shift by disengaging a first friction element and by engaging a second friction element. The engine racing preventing means outputs a command signal to a valve actuator to temporally increase an engagement force of the first friction element when the engine racing is detected during the up-shift.

REFERENCES:
patent: 4843922 (1989-07-01), Kashihara
patent: 5018068 (1991-05-01), Aoki et al.
patent: 5125295 (1992-06-01), Iwatsuki et al.
patent: 5128868 (1992-07-01), Imai et al.
patent: 5138906 (1992-08-01), Iwatsuki et al.
patent: 5182970 (1993-02-01), Goto et al.

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