Shift control system for automatic transmission

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

1989-06-30

1991-07-30

Wright, Dirk

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

B60K 4118

Patent

active

050351591

ABSTRACT:
A shift control system for an automatic transmission is disclosed, in which the servo activating pressure modulating means, modulating the servo activating pressure during a period of shifting in response to signal from the signal generating means, sets the shift feel in accordance with a command to the shift feel modulating means manually made by a driver. Further, the shift feel can also be set in accordance with the driver's command by modulating output torque of the engine during a period of shifting in response to the signal. Furthermore, upon modulating the shift feel, more remarkable modulation thereof is obtained by also modulating a shift point of the automatic transmission by the shift point modulating means.

REFERENCES:
patent: 3693479 (1972-09-01), Toyoda et al.
patent: 4215596 (1980-08-01), Long
patent: 4271728 (1981-06-01), Wakamatsu
patent: 4523281 (1985-06-01), Noda et al.
patent: 4569255 (1986-02-01), Holmes
patent: 4669335 (1987-06-01), Matsuoka et al.
patent: 4680992 (1987-07-01), Hayasaki et al.
patent: 4693225 (1987-09-01), Abe et al.
patent: 4790215 (1988-12-01), Hamano
patent: 4807497 (1989-02-01), Yasue et al.
"Maintenance Manual for RE4R01A Type Automatic Transmission", (A261C07), Published by Nissan Motor Company, Mar. 1987.

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