Vorrichtung und Verfahren zum Ansteuern wenigstens eines kapazitiven Stellgliedes

Christian Hoffmann (Inventor), Hellmut Freudenberg (Inventor), Hartmut Gerken (Inventor), Georg Brasseur (Inventor), Patrick Komaromi (Inventor)

Research output: Patent


A process and device are disclosed for driving at least one capacitive actuator (P), in particular a piezoelectrically driven fuel injection valve of an internal combustion engine, by means of a microprocessor-controlled control circuit (ST) with a charging capacitor (C) which can be recharged by an energy source (V), which charges the at least one actuator through switches (X1 to X4) controlled by the control circuit, and into which said actuator is again discharged.

Original languageGerman
Patent numberDE19632872
IPCH02N 2/ 06 A I
Priority date14/08/96
Publication statusPublished - 12 Feb 1998
Externally publishedYes

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