Clutch pressure control for improved transmission engagements an

Details Clutch pressure control for improved transmission engagements an Clutch pressure control for improved transmission engagements an

1999-01-22

2000-05-30

Zanelli, Michael J.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Clutch control

701 65, 477168, 477174, G06F 1700, F16H 6100

Patent

active

060701196

ABSTRACT:
A method for reducing transmission clutch engagement pressure during conditions when clutch hydraulic fluid is relatively more viscous. A clutch engagement pressure control signal is shaped by a system that has an addition branch (42) for shaping the control signal as the control signal is rising, a subtraction branch (44) for shaping the control signal as the control signal is falling, and a summing junction (46) for algebraically summing the signal outputs of the addition and the subtraction branches.

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