End-of-fill detector for a fluid actuated clutch

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control

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701 67, 701 87, 192 85R, 192109F, G06F 1700, G06F 1900

Patent

active

061156612

ABSTRACT:
In one aspect of this invention, a fluid actuated clutch is disclosed. The fluid actuated clutch is operatively connected to a control valve that is actuated by an electronic controller that receives a signal from an input mechanism, including a value for speed of an engine drive and a value of output speed for a torque converter. The method includes detecting a torque converter ratio which is the output speed of the torque converter divided by the engine drive speed, and detecting if there is at least one torque converter decrease exceeding a predetermined level and preferably detecting if there are at least two consecutive decreases in the torque converter ratio with at least one of the torque converter decreases exceeding a predetermined minimum level. This condition represents the end-of-fill point for the fluid actuated clutch.

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