Electro-hydraulic clutch actuation system for manual transmissio

Details Electro-hydraulic clutch actuation system for manual transmissio Electro-hydraulic clutch actuation system for manual transmissio

1997-10-16

1999-07-27

Bonck, Rodney H.

Interrelated power delivery controls, including engine control

Transmission control

With clutch control

192 358, 192 362, B60K 4128, B60K 4102

Patent

active

059281065

ABSTRACT:
An electro-hydraulic clutch actuation system for a manual transmission comprises a slave cylinder engaged to a transmission clutch fork member, the cylinder being operated to cause clutch disengagement by actuation of a push-button on a gear shift lever of the transmission, such cylinder effectively producing a manual transmission which does not require clutch pedal actuation during shifting of the transmission. Further, the system eliminates the need for transmission synchronizers by using sensed speed of tailshaft rotation to determine the point of synchronization for such shifting, and, in an automatic mode of operation, the system indicates to an operator not only that the synchronization point has been achieved, but also prompts an upshift or downshift, as required, to minimize load. The cylinder is operated using oil under high pressure which is supplied thereto from a high pressure engine oil rail.

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