Abstract: A warning system for detecting a battery fire in a battery of an electric or hybrid vehicle includes a battery management system. The electric or hybrid vehicle is parked at or in a building to carry out a battery charging operation. The battery management system is connected to a building network installed in the building during the charging operation either via a direct connection or via a wireless connection. The battery management system triggers or activates protective measures if a fire is detected.

Abstract: The present disclosure relates to a battery including a voltage-measuring apparatus, at least one reversible disconnection apparatus, and a circuit of electronic components. The voltage-measuring apparatus is configured to determine a battery voltage. The at least one reversible disconnection apparatus is configured to electrically disconnect the battery from an electrical supply system, such that the disconnection can be cancelled again, for charging or discharging the battery. The circuit of electronic components is a circuit configured to open the disconnection apparatus in the event of an undervoltage and/or an overvoltage of the battery.

Abstract: The present disclosure relates to a method for monitoring the voltage on electrical storage units, to a battery and to a motor vehicle having such a battery that are configured to be used particularly for improved establishment of overvoltages and/or undervoltages on modules of the electrical storage unit. To this end, a method for monitoring the voltage on at least one electrical storage unit includes extracting an idle voltage U_OCV on the at least one electrical storage unit from a voltage U_measured that is measured on the at least one electrical storage unit.

Abstract: The disclosure relates to a method for determining a charge state of a battery having a battery management unit. In a first operating state of the battery management unit, a battery current is regularly detected by the battery management unit. The battery management unit switches to a second operating state when the battery current exceeds a predetermined current threshold value. In the second operating state, information about the charge state of the battery is collected. Furthermore, a battery having a battery management unit is described, which is configured to carry out the method according to the disclosure.

Abstract: A method is described for monitoring a charging process of a battery, in which cell voltages of a plurality of battery cells are measured at regular time intervals, and loading of the battery by a process of switching on an additional electrical load is prevented if the measured cell voltage of one battery cell exceeds a predetermined cell voltage threshold value. A motor vehicle is also described, which is configured to carry out the method according to the disclosure during a battery charging process. In addition, a battery system is described, in which a controller is configured to determine an estimated value as a function of measured battery parameters during a charging process of the battery. The estimated value corresponds to the maximum temperature in the battery if the charging process is continued without interruption.

Abstract: The invention relates to a battery system having an output voltage of more than 60 V direct current voltage. In the invention, at least two voltage sources having an output voltage of less than 60 V each, each having at least one contact, via which the at least two voltage sources can be connected in series by at least one conductive connection. A battery housing is provided in which the at least two voltage sources are arranged. According to the invention, at least one reversible, interruptible, conductive connection is functionally designed such that a series circuit of the at least two voltage sources can be created by the conductive connection when the battery housing is closed and upon opening the battery housing, a series circuit of the at least two voltage sources is reversibly interruptible. The invention further relates to a motor vehicle having the battery system.

Abstract: A method, a device, a computer program and a computer program product are described for controlling a lighting system of a motor vehicle, in particular a headlight system of a motor vehicle involved in road traffic. The control process involves performing the operations of detecting a current traffic situation having at least detecting a motor vehicle speed and detecting a state of the lighting system and adjusting the state of the lighting system as a function of the detected traffic situation, the detection of the current traffic situation furthermore including the operation of detecting an obstacle, in order to adjust the lighting system as a function of the traffic situation thus determined.