Speed shifting time control device of automatic transmission

Details Speed shifting time control device of automatic transmission Speed shifting time control device of automatic transmission

1990-08-15

1991-07-09

Wright, Dirk

Machine element or mechanism

Rotary driven device adjustable during operation relative to...

Screw and nut adjusting means

74851, B60K 4118

Patent

active

050294920

ABSTRACT:
The device of the present invention changes the target value of speed shifting time in an automatic transmission according to the oil temperature of line pressure. According to this device, in the case where the oil temperature of line pressure is high, the quantity of heat generation due to sliding of friction elements can be reduced by shortening the speed shifting time, with the result of improvement of friction elements in durability to heat and reliability.

REFERENCES:
patent: 4283970 (1981-08-01), Vukovich

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