Speed change controller for continuously variable transmission

Details Speed change controller for continuously variable transmission Speed change controller for continuously variable transmission

1997-10-31

1999-11-16

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

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

477 37, 477 43, 477 50, 476 10, 701 65, F16H 6100

Patent

active

059848294

ABSTRACT:
In a continuously variable transmission which varies a speed change ratio based on a target speed change ratio which has been set according to a running condition of a vehicle, a sensor is provided for detecting the temperature of the continuously variable transmission. A shift amount of the speed change ratio due to a thermal expansion difference of parts of the continuously variable transmission is prevented by correcting the target speed change ratio based on the temperature detected by the sensor.

REFERENCES:
patent: 5542890 (1996-08-01), Nakano et al.
patent: 5575732 (1996-11-01), Inoue
patent: 5643132 (1997-07-01), Inoue
patent: 5665021 (1997-09-01), Inoue
patent: 5681236 (1997-10-01), Inoue
patent: 5707313 (1998-01-01), Suzuki
patent: 5711741 (1998-01-01), Inoue
patent: 5807206 (1998-09-01), Okazaki
Nakano et al., "Dynamic Characteristics of Speed Ratio Control of the Halt Toroidal CVT for Passenger Cars" SAE Technical Papers Series pp. 24-32 (1990).

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