Apparatus for controlling a continuously variable transmission

Details Apparatus for controlling a continuously variable transmission Apparatus for controlling a continuously variable transmission

1990-12-27

1992-11-10

Bonck, Rodney H.

Machine element or mechanism

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

Preselected indexed position

3644241, 474 18, B60K 4112

Patent

active

051614332

ABSTRACT:
Disclosed is an apparatus for controlling a continuously variable transmission for controlling a speed-change ratio so as to set an input number of revolutions of the continuously variable transmission mounted on a vehicle to a predetermined targeted value on the basis of engine performance at a predetermined throttle opening. The apparatus has a device for imparting an initial value of a range of the targeted value when a change in the throttle opening ceases and a device for changing the range of the targeted value when there is no change in the throttle opening. A range between the upper and lower limits of a targeted engine speed is rendered variable depending on the driver's requirements and the running state, making it possible to properly determine which of the characteristics is to be strengthened among the power performance, fuel consumption performance, control stability, and transmission efficiency.

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