System and method for managing accumulator effects during engagement of a lockup clutch in a torque converter

A method and system for managing accumulator effects during engagement of a lockup clutch of a torque converter includes selecting a pump speed profile that reduces a rotational speed of a pump of the torque converter from an initial value to a rotation speed of a turbine of the torque converter. A...

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Bibliographische Detailangaben
1. Verfasser:	RUNDE JEFFREY K
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAKES CALCULATING CLUTCHES COMPUTING COUNTING COUPLINGS FOR TRANSMITTING ROTATION ELECTRIC DIGITAL DATA PROCESSING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PHYSICS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A method and system for managing accumulator effects during engagement of a lockup clutch of a torque converter includes selecting a pump speed profile that reduces a rotational speed of a pump of the torque converter from an initial value to a rotation speed of a turbine of the torque converter. A pump acceleration profile is determined based on the pump speed profile. Engagement of the lockup clutch is controlled as a function of an inertia of an engine associated with the torque converter, a torque applied by the engine to the pump, the rotational speed of the turbine, the pump speed profile, and the pump acceleration profile.