Electronically controlled continuously variable transmission

Details Electronically controlled continuously variable transmission Electronically controlled continuously variable transmission

1991-03-28

1994-08-16

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

25112907, F16H 6100

Patent

active

053376285

ABSTRACT:
An electronically controlled continuously variable transmission system is provided with a driving belt trained over a primary and secondary pulley. The primary pulley is provided on a primary shaft and the secondary pulley is provided on a secondary shaft. Each pulley has corresponding spaced, conical pulley halves and at least one of the corresponding pulley halves is axially movable by respective primary and secondary moving devices. The transmission further includes a primary electronic control system for controlling the transmission ratio and a secondary electronic control system for controlling the belt tension. The primary electronic control system permits the operator to select from fuel economy, sporting, and maximum comfort performance modes. The primary electronic control means controls the transmission ratio in accordance with the performance mode selected. The moving devices include standby operating valves to permit continued operation of the transmission in case of power failure.

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