Apparatus for controlling change ratio of stepless transmission

Details Apparatus for controlling change ratio of stepless transmission Apparatus for controlling change ratio of stepless transmission

1993-12-29

1994-11-29

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

477 48, F16H 6102

Patent

active

053685300

ABSTRACT:
A change ratio control apparatus is arranged to set the lower limit of the change ratio to values included in a range in which transmission efficiency does not deteriorate due to the reduction in the change ratio if the transmission efficiency of the driving force in the transmission deteriorates in a low load region in which the change ratio is low. Therefore, deterioration in the transmission efficiency can be prevented and the fuel consumption rate can thereby be improved.

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