Shift control system for automatic transmission

Details Shift control system for automatic transmission Shift control system for automatic transmission

1989-06-05

1991-07-09

Gruber, Felix D.

Boots, shoes, and leggings

74866, B60K 4118, G05D 1702

Patent

active

050311000

ABSTRACT:
A shift control system for an automatic transmission of a vehicle includes a vehicle speed sensor, a throttle opening sensor, and a controller which determines a desired speed ratio in accordance with the vehicle speed and throttle opening by using a shift pattern, and controls the automatic transmission to achieve the desired speed ratio. There are further provided an input device which permits the driver to appraise the shifting performance, and to produce a complaint signal against each unsatisfying shift, and a modifying means for altering the shift pattern in accordance with the driver's complaint.

REFERENCES:
patent: 4523281 (1985-06-01), Noda et al.
patent: 4584906 (1986-04-01), Nagaoka et al.
patent: 4742733 (1988-05-01), Schreiner
patent: 4862363 (1989-08-01), Krisher et al.
patent: 4889015 (1989-12-01), Kondo
patent: 4897790 (1990-01-01), Bieber

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