Delphi Technologies, Inc.

Aptiv Technologies Ag

Krystian Hirsch

Achim Rosemann

Peter Baur

Volker Heise

Klaus Hold

A system for the monitoring of the state of a battery used in a vehicle and to which electrical elements comprising at least one electrical consumer and/or at least one electrical generator are connected comprises means for the detection of the battery voltage, means for the extraction of voltage frequency components from the detected battery voltage at different frequencies, means for the detection of the current flowing out of or into the battery, means for the extraction of current frequency components from the detected battery current at the same frequencies at which the voltage frequency components were extracted, means for the determination of internal impedances of the battery from the voltage frequency components and current frequency components extracted at a respective frequency, means for the storage of predetermined relationships between the internal impedance and the battery state for each of the respective frequencies and means for the determination of the battery state from the determined internal impedances and the predetermined relationships. In this connection, means are provided for the monitoring of the state of at least some of the electrical elements as well as means in order to select the time for a respective voltage and current detection in dependence on the detected state of the electrical elements and/or to fix the conditions for a respective voltage and current detection.

Battery monitoring system

The invention relates to a connection unit for the connection of electrical and/or electronic components to a pole of a motor vehicle battery comprising a first conductor section that can be connected to a battery pole; a second conductor section originating from the first conductor section and including a main conductor and a bypass conductor, to which the at least one respective electrical and/or electronic component can be connected; an interruption unit, by which an electrical and/or electronic component connected to the main conductor can be electrically isolated from the battery; and at least one sensor for the measurement of a battery current and/or of a battery voltage.

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Wuelfrath, Germany

Krystian Hirsch