VORRICHTUNG UND VERFAHREN ZUM ANSTEUERN EINES KAPAZITIVEN STELLGLIEDES

Translated title of the contribution: PROCESS AND DEVICE FOR DRIVING A CAPACITIVE ACTUATOR

Christian Hoffmann (Inventor), Hellmut Freudenberg (Inventor), Hartmut Gerken (Inventor), Georg Brasseur (Inventor), Richard Pirkl (Inventor)

Research output: Patent

Abstract

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.

Translated title of the contributionPROCESS AND DEVICE FOR DRIVING A CAPACITIVE ACTUATOR
Original languageGerman
Patent numberEP0944925
IPCH02N 2/ 06 A I
Priority date5/08/97
Publication statusPublished - 29 Sep 1999

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