METHOD AND CONTROL DEVICE FOR CHARGING OR DISCHARGING A PIEZO-ELECTRIC ACTUATOR

METHOD AND CONTROL DEVICE FOR CHARGING OR DISCHARGING A PIEZO-ELECTRIC ACTUATOR

The invention relates to a method for charging or discharging a piezo-electric actuator (100), in particular of an injection valve of an internal combustion engine, wherein a first terminal (102) of the actuator (100) is set to a first reference potential (PB1) at least temporarily using a transfer...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KRIEG, MARKUS, OSTENDORF, BORIS, GRAF, MARCO, BARTH, JENS-HOLGER
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ELECTRICITY
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:The invention relates to a method for charging or discharging a piezo-electric actuator (100), in particular of an injection valve of an internal combustion engine, wherein a first terminal (102) of the actuator (100) is set to a first reference potential (PB1) at least temporarily using a transfer inductance (L). The invention is characterized in that the actuator (100) is controlled dependent on a potential difference between the first reference potential (PB1) and a potential (P102) at the first terminal (102) of the actuator (100).