Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1991-03-22
1993-01-19
Lorence, Richard
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
3644241, F16H 5942, F16H 6102
Patent
active
051798751
ABSTRACT:
A control for a torque converter transmission having a pressure-operated torque input clutch that establishes and disestablishes a torque flow path between an engine and torque input elements of a multiple-ratio transmission comprising a solenoid-operated clutch control and an electronic controller and clutch control valve structure whereby the clutch pressure is regulated in a closed loop manner as the controller responds to turbine speed changes to effect a controlled pressure buildup in the clutch when clutch engagement is desired so that the rate of engagement corresponds to an optimum calibrated rate to eliminate harshness in clutch engagement and also to prevent an undesirable transient engine speed increase during start-up.
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Ford Motor Company
Lorence Richard
May Roger L.
McKenzie Frank G.
Ta Khoi Q.
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