Speed change control apparatus of automatic transmission

Details Speed change control apparatus of automatic transmission Speed change control apparatus of automatic transmission

1997-08-25

1999-03-16

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

701 52, F16H 6116

Patent

active

058822771

ABSTRACT:
When a speed ratio is selected manually by an operator of a vehicle, an upshift command is generated if the engine speed exceeds a predetermined maximum value. Further manual upshifts and downshifts are inhibited for a predetermined time period. The time period is a function of at least one of the current engaged gear ratio, engine throttle position, and the amount of time it takes to upshift the transmission.

REFERENCES:
patent: 5009128 (1991-04-01), Seidel et al.
patent: 5070740 (1991-12-01), Giek et al.
patent: 5127288 (1992-07-01), Hojo et al.
patent: 5351570 (1994-10-01), Mizunuma et al.
patent: 5545108 (1996-08-01), Wagner et al.
patent: 5549519 (1996-08-01), Seidel et al.
patent: 5586029 (1996-12-01), Schulz et al.
patent: 5738607 (1998-04-01), Konod et al.

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