Accumulator working volume management and adaptation

A dual clutch transmission (DCT) control module includes a pressure determination module that determines a measured pre-charge pressure of an accumulator. A motor control module determines an actual pre-charge pressure based on the measured pre-charge pressure, stored previous pre-charge pressures,...

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Bibliographische Detailangaben
Hauptverfasser:	LYBERG STAFFAN, BERNDTSON TOBIAS, WANG HONGYU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAKES CALCULATING CLUTCHES COMPUTING CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES COUNTING COUPLINGS FOR TRANSMITTING ROTATION ELECTRIC DIGITAL DATA PROCESSING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLETECHNOLOGY LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A dual clutch transmission (DCT) control module includes a pressure determination module that determines a measured pre-charge pressure of an accumulator. A motor control module determines an actual pre-charge pressure based on the measured pre-charge pressure, stored previous pre-charge pressures, and ambient temperature, and controls a pump motor based on the actual pre-charge pressure.