Control system for automatic vehicle transmission

Details Control system for automatic vehicle transmission Control system for automatic vehicle transmission

1997-11-04

1999-06-01

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

F16H 6100

Patent

active

059083697

ABSTRACT:
A control system for an automatic vehicle transmission having an auto-shifting device for determining an auto-shifting gearshift signal indicative of a gear to be shifted to in accordance with predetermined gearshift scheduling characteristics in response to a detected vehicle speed and an engine load, and a manual-shifting device for determining a manual-shifting signal indicative of a gear to be shifted to in response to a manual-shift command. A gearshift is conducted in response to one of the auto-shifting gearshift signal and the manual-shifting gearshift signal. In the system, the manual-shifting command is inhibited from being accepted for a predetermined period since the gearshift device conducted a gearshift in response to the auto-shifting gearshift signal. With this arrangement, it is possible to prevent down shifting from occurring consecutively so as to prevent drivability or driver's comfort from being degraded.

REFERENCES:
patent: 5311794 (1994-05-01), Takada et al.
patent: 5484350 (1996-01-01), Ishikawa et al.
patent: 5658219 (1997-08-01), Kondo et al.
patent: 5738607 (1998-04-01), Kondo et al.

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