Electronic unit and method for detecting a polarity inversion of the onboard power supply voltage in motor vehicles

An electronic unit in a motor vehicle has a connection for the negative onboard power supply voltage and a connection for the positive onboard power supply voltage, as well as an internal electric supply unit that can be used independently of the polarity of the onboard power supply voltage and inde...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	WAGNER ARMIN, SEIDEL CHRISTINA, LUTHE CHRISTOPH, STAHL HANS-ULRICH
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An electronic unit in a motor vehicle has a connection for the negative onboard power supply voltage and a connection for the positive onboard power supply voltage, as well as an internal electric supply unit that can be used independently of the polarity of the onboard power supply voltage and independently of the onboard power supply voltage. The unit includes a function block which compares the actual voltage at the connection for the negative onboard power supply voltage with the actual voltage at the connection for the positive onboard power supply voltage. A polarity inversion of the onboard power supply voltage is detected (and a storage of the polarity inversion detection data is caused) if the actual voltage at the connection for the negative onboard power supply voltage is higher than the actual voltage at the connection for the positive power supply voltage, or if the respective actual voltages exceed preset reference values.