Change gear control device using acceleration and gear ratio as

Details Change gear control device using acceleration and gear ratio as Change gear control device using acceleration and gear ratio as

1994-02-01

1997-07-01

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

477109, 477110, 477102, F16H 6104, F16H 5918, B60K 4108

Patent

active

056431333

ABSTRACT:
A change gear control device is provided for an automatic transmission in a motor vehicle propelled by an internal combustion engine which is operated with an air/fuel mixture having air/fuel ratios ranging from a fuel rich air/fuel ratio to a fuel lean air/fuel ratio depending on driving conditions of the motor vehicle. In this device a first detector detects an engine torque of the internal combustion engine and a second detector detects a vehicle speed of the motor vehicle. A processor processes transmission gear ratios for the automatic transmission. In particular, the processor reads the detected engine torque from the first detector and the detected vehicle speed from the second detector, determines a new transmission gear ratio based upon the engine torque and the vehicle speed, and outputs a signal representing the new transmission gear ratio to the automatic transmission, whereby a gear shifting operation is effected at a timing based on an engine torque variation due to an operating air/fuel ratio change.

REFERENCES:
patent: 4102222 (1978-07-01), Miller et al.
patent: 4625590 (1986-12-01), Muller
patent: 4677880 (1987-07-01), Hattori et al.
patent: 4679145 (1987-07-01), Breck et al.
patent: 4732130 (1988-03-01), Suzuki
patent: 4739483 (1988-04-01), Ina et al.
patent: 4788892 (1988-12-01), Komoda et al.
patent: 4823642 (1989-04-01), Iwaki et al.
patent: 4891759 (1990-01-01), Kato
patent: 4893526 (1990-01-01), Tokero
patent: 4930374 (1990-06-01), Simonyi et al.
patent: 4945483 (1990-07-01), Tokaro
patent: 5025684 (1991-06-01), Stehle et al.
patent: 5035160 (1991-07-01), Morita
patent: 5067374 (1991-11-01), Sakai et al.
patent: 5113721 (1992-05-01), Polly
patent: 5129288 (1992-07-01), Sasaki et al.
patent: 5150635 (1992-09-01), Minowa et al.
patent: 5209218 (1993-05-01), Miyashita et al.
patent: 5231897 (1993-08-01), Morita
patent: 5295416 (1994-03-01), Miyashita et al.
patent: 5309791 (1994-05-01), Takada et al.
patent: 5319555 (1994-06-01), Iwaki et al.
JP-1-21-255 (A), Patents Abstracts of Japan, M-823 May 10, 1989 vol. 13/No. 194.
JP-1-21-256 (A), Patents Abstracts of Japan, M-823 May 10, 1989 vol. 13/No. 194.

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