METHOD AND DEVICE FOR MONITORING A PIEZO ACTUATOR

The invention describes a device and a method for monitoring a piezoelectric actuator. It is checked whether a discharge time assumes an inadmissible value, whether the voltage at the piezoelectric actuator assumes an inadmissible value and whether a fault signal is present. A short circuit of a bat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SPP STEFAN, ZU YANQI, DANIC MICHAEL, BITZER MATTHIAS
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The invention describes a device and a method for monitoring a piezoelectric actuator. It is checked whether a discharge time assumes an inadmissible value, whether the voltage at the piezoelectric actuator assumes an inadmissible value and whether a fault signal is present. A short circuit of a battery switch is detected if the three conditions are met.