Shift control apparatus for an automatic transmission

Details Shift control apparatus for an automatic transmission Shift control apparatus for an automatic transmission

1996-01-03

1997-12-16

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Control by sensed ambient condition, pattern indicia,...

477120, 477124, 477133, 475123, 475125, 475129, F16H 6108

Patent

active

056978642

ABSTRACT:
A shift control apparatus for an automatic transmission includes a first transmission gear unit equipped with a clutch to clutch shift mechanism and a second transmission gear unit which is operatively connected in series with the first transmission gear unit and which is equipped with a clutch to one-way clutch shift mechanism. A clutch controller controls the clutch-to-clutch shift mechanism and the clutch to one-way clutch shift mechanism in such a manner that rotational synchronization of the clutch to one-way clutch shift mechanism is caused to take place earlier than or at the same time as rotational synchronization of the clutch to clutch shift mechanism when gear shifting is effected over the first and second transmission gear units.

REFERENCES:
patent: 4367528 (1983-01-01), Kawamoto
patent: 4718310 (1988-01-01), Shindo et al.
patent: 5201251 (1993-04-01), Kitagawa et al.
patent: 5281190 (1994-01-01), Koivunen
patent: 5304102 (1994-04-01), Narita et al.
patent: 5421791 (1995-06-01), Futawatari
patent: 5425284 (1995-06-01), Davis
patent: 5454763 (1995-10-01), Ikebuchi et al.
Toyota Crown New Model Car Maintenance Manual (Oct., 1991) Nissan SE-AT Maintenance Manual.

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