Audi Ag

Berthold Hellenthal

Michael Hinterberger

André Blum

Peter Pilgram

Markus Fest

Andre Hainzlmaier

Heinz-Willi Vassen

Christian Allmann

Tamas Gyulai

Uwe Opitz

Joshua Smith

Matthias Illg

A battery, particularly for a motor vehicle, including at least two battery cells, wherein at least one circuit branch is connected to a respective positive pole and negative pole of the respective battery cell, which includes a heating unit, which can be connected in parallel to the respective battery cell by a switching element of the circuit branch; and a control device, which is configured to switch the switching elements of the respective circuit branch between an electrically conductive and an electrically blocking state in order to heat the battery cells, perform active balancing of the battery cells, and/or discharge the battery cells. The invention furthermore relates to a method for operating a battery.

Battery, particularly for a motor vehicle, and method for operating a battery

The disclosure relates to an electrical energy supply device having usage units, wherein each usage unit is designed to generate or to buffer electrical energy. The disclosure proposes that the energy supply device carries out an energy exchange through a busbar assembly, wherein busbars of the busbar assembly form a busbar matrix, and in the energy supply device the usage units are divided up into strands and in each strand the usage units are hooked up in a series circuit and the series circuit is connected across a DC voltage converter to one strand end of the strand and each strand end of the strand is connected across a respective galvanically separable switching unit.

Electric energy supply device comprising a busbar matrix, and method for operating the energy supply device

An electrical energy supply device having a plurality of usage units, each usage unit being adapted to generate or to buffer electrical energy. The usage units in the energy supply device are divided up into strands and each strand is adapted to generate a summed voltage by a series circuit of the usage units, and each strand end is connected across a respective switching unit to a busbar assembly and within each strand a bridging circuit is provided for each usage unit and a control device is adapted to identify a defective usage unit in one of the strands and to then galvanically separate the strand by its switching units from the busbar assembly.

Electric energy supply device comprising a plurality of exchangeable usage units, and method for operating such an energy supply device

The disclosure relates to an electrical energy supply device having a plurality of usage units, each of which is adapted to generate or to buffer electrical energy. The disclosure proposes that the energy supply device carries out an energy exchange with multiple external components at the same time through a busbar assembly and in the energy supply device the usage units are divided up into strands and each strand end of the strand is connected across a respective galvanically separable switching unit.

The present disclosure relates to a method for providing a vehicle having a context-dependent configuration, in which a vehicle is selected, configured and used for transporting the user on the basis of information relating to a context of a user, which was transmitted to a server, and wherein the context of the user is determined on the basis of control commands provided by the user with the aid of a program executed on a processing unit.

Method for providing a vehicle having a context-dependent configuration

A battery system, including multiple battery cells, each of which have respective battery cell housings with electrical terminals via which the multiple battery cells are electrically connected to one another, wherein a cell branch connecting the electrical terminals to a galvanic cell and a bypass branch for bridging the galvanic cell are arranged in each of the respective battery cell housings, each cell branch having a switching element for opening and closing the cell branch and each bypass branch having a bridging switching element for opening and closing the bypass branch.

Battery system and method for operating a battery system

The disclosure relates to an electrical energy-supply device including several usage units, wherein each usage unit is adapted to generate or temporarily store electrical energy, and wherein a control means is adapted to control an exchange of power (E) between the energy-supply device and at least one device, The invention provides that the usage units of the energy-supply device are divided into strands and the usage units of each strand are connected to a series connection and the series connection is connected via a DC converter and at least one galvanically isolable switching unit is connected to a busbar arrangement.

Electric energy supply device comprising a plurality of usage units which are connected in order to form strands, and method for operating such an energy supply device

A battery for a motor vehicle, having multiple battery cells which include respective battery cell housings with electric terminals via which the battery cells are electrically connected to one another. In the battery cell housings, in each case a cell branch connecting the terminals, with a galvanic cell, is arranged, and in each case several of the battery cells are connected to one another in parallel connection to form respective cell blocks. Each cell branch includes a switching element for opening and closing the cell branch; the battery has a control device which is configured in order to actuate the switching elements of the cell branches for opening or closing the switching elements as a function of a performance requirement of an electric drive of the motor vehicle.

Battery for a motor vehicle and method for operating a battery

A protective device for shutting down at least one battery cell in a battery system of a motor vehicle in case of an electrical short circuit. The protective device is configured to conduct an electric current, which flows through the at least one battery cell, through a measurement element, in which the current generates an electrical measurement voltage in dependence on its amperage and/or its amperage gradient. The measurement element is coupled to an analog monitoring circuit, in which a comparison unit is configured to trigger a triggering signal for the case that the amperage rises at least by a predetermined delta value within a predetermined duration, and a switching unit is configured to receive the triggering signal and to interrupt the current upon receiving the triggering signal by switching at least one switching element.

Protective device and method for shutting down at least one battery cell in a battery system in case of an electrical short circuit, and also motor vehicle, battery system, and battery cell having the protective device

A method for discharging a battery module, having at least two battery cells, of a battery having at least two battery modules, wherein the battery cells of each of the battery modules are arranged next to one another and are mechanically and electrically connected to one another, wherein, in each of the battery modules, the respective battery cells are individually activated and deactivated in terms of an energy storage function by a cell switch unit, wherein the battery cells of the battery module to be discharged are selectively electrically coupled successively to a discharge device by the cell switch unit and starting from one predefined battery cell, in order to individually successively electrically discharge the battery cells in order to discharge the battery module.

Discharging a battery module, having at least two battery cells, of a battery having at least two battery modules

A protective device for switching off a battery cell of a motor vehicle battery in the event of an electrical short-circuit. The battery cell has two cell terminals and an energy storage unit for storing energy. The energy storage unit is connected to the cell terminals in an electrically conductive manner in order to provide cell voltage to the cell terminals. The protective device detects the short-circuit as a function of at least the cell voltage affecting the battery cell. In this case, the battery cell has the protective device and at least one switching device, which is arranged between the energy storage unit and at least one of the cell terminals. The protective device isolates the energy storage unit from the at least one of the cell terminals in order to switch off the battery cell by the switching device.

Protective device, battery, motor vehicle, and method for switching off a battery cell

A method for operating an electric energy supply device with a plurality of usage units. Each usage unit is designed to generate or buffer electric energy. A control device is designed to control an exchange of energy between the energy supply device on the one hand and at least one device that is connected to the energy supply device on the other hand. For each usage unit it sets a respective setpoint value for at least one electric operating parameter.

Method for operating a plurality of usage units for a wear compensation in an energy supply device, and energy supply device

A dynamically disconnectable battery system for a motor vehicle, including a plurality of battery cells, having a respective battery cell housing with electrical connections by which the battery cells are electrically interconnected. In the battery cell housings there is arranged a respective cell branch connecting the connections to a galvanic cell. Each cell branch includes a switching element for opening and closing the cell branch; the battery system includes a control device, which is configured to actuate all the switching elements of the cell branches for the opening of the switching elements when the control device has received a danger signal from at least one sensor.

Dynamically disconnectable battery system for a motor vehicle and method for operating a dynamically disconnectable battery system

A battery and a method for operating a battery, in particular for a motor vehicle, including multiple battery cells, which have respective battery cell housings with electric terminals via which the battery cells are electrically interconnected, wherein a respective cell branch connecting the terminals and having a galvanic cell is arranged in the battery cell housings, a respective bypass branch for bypassing the respective galvanic cell is arranged in the battery cell housings; each cell branch has a first switching element for opening and closing the cell branch, and each bypass branch has a second switching element for opening and closing the bypass branch.

Battery and method of operating a battery

Electrical battery device having at least one module string, in which multiple module units each including at least one battery module are electrically interconnected one after another in a series, wherein one end of the series is electrically connected to a respective battery terminal of the battery device. A respective bridging circuit is provided in the at least one module string in each case for each of its module units, which is configured to alternately bridge the respective module unit and interrupt the bridging again in dependence on a switching signal, wherein a control unit is configured to bridge at least some of the module units in chronological succession and chronologically thereafter to interrupt the bridgings again by setting the switching signal in periodically successive switching sequences.

Battery device having at least one module string, in which module string module units are interconnected one after the other in a row, and motor vehicle and operating method for the battery device

Growing community of inventors

Schwanstetten, Germany

Berthold Hellenthal