Shift control system for manually shiftable automatic transmissi

Details Shift control system for manually shiftable automatic transmissi Shift control system for manually shiftable automatic transmissi

1993-04-26

1995-02-28

Look, Edward K.

Interrelated power delivery controls, including engine control

Transmission control

With clutch control

74335, 3644241, F16H 5904

Patent

active

053932757

ABSTRACT:
A shift control system for an automatic transmission, includes: a plurality of frictional engagement elements adapted to be hydraulically engaged for setting a plurality of gear stages; and a shift lever for switching between an automatic mode, in which a gear stage is set on the basis of the running state of a vehicle, and a manual mode in which a gear stage is selected by manipulating the shift lever. A shift detector detects that a gear stage should be selected for the shift in the manual mode state and a shift start timing adjuster, if the shift in the manual mode state is detected, the switching rate of the frictional engagement elements which are switched for executing the detected shift.

REFERENCES:
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patent: 4987792 (1991-01-01), Mueller et al.
patent: 5009128 (1991-04-01), Seidel et al.
patent: 5044220 (1991-09-01), Raff et al.
patent: 5056376 (1991-10-01), Moroto et al.
patent: 5062314 (1991-11-01), Maier et al.
patent: 5070740 (1991-12-01), Giek et al.
patent: 5127288 (1992-07-01), Hojo et al.
Patent Abstracts of Japan, vol. 12, No. 083 (M-667), Mar. 16, 1988, JP-A-62 224 764, Oct. 2, 1987.

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