Robert Boschgmbh

The Foxboro Company

Sma Solar Technology Ag

Werner Schiemann

Lin Zhang

Rasmus Rettig

Joachim Joos

Franziska Kalb

Reiner Schnitzer

Fabian Henrici

Axel Wenzler

Berthold Elbracht

Thomas Lang

Thomas Jacke

Marc Eschenhagen

Martin Haug

Michael Merkle

Martin Pohlmann

Michael Lochner

Michael Luchner

Ralph Weinmann

A battery system for a motor vehicle. The battery system includes an actuating unit, a main control unit, multiple sub-control units, and multiple battery cells. The actuating unit is in signal communication with the sub-control units for data acquisition from the sub-control units. Each sub-control unit is in signal communication with a battery cell for data acquisition from the assigned battery cell. The main control unit is electrically connected to the sub-control units supplying power to the sub-control units. A method for operating a battery system is also described.

Battery system and method for operating a battery system

The invention relates to a fuse system for at least one load of a vehicle, the fuse system having a fuse apparatus that has at least one electronic fuse for the at least one load and an evaluation and control circuit that evaluates a load current through the at least one electronic fuse and compares the load current with at least one prescribed disconnection criterion of a first parameter set, wherein the evaluation and control circuit initiates a trip process that trips the at least one electronic fuse and disconnects the load current to the corresponding load if the at least one prescribed disconnection criterion is satisfied.

Fuse system for at least one load of a vehicle

A battery sensor data transmission unit is described as including a data transmission unit, which is designed to output a sensor signal, which represents a physical variable in or at the battery cell to an evaluation device, using a battery housing wall and/or a wall of a battery cell as the transmission medium.

Battery sensor data transmission unit and a method for transmitting battery sensor data

An overload monitoring device for an electrical system including a measuring device for current and/or voltage, a time measuring device and an evaluation device connected to the measuring device and the time measuring device being provided, the evaluation device being designed for generating parameters from measured values of the measuring device and/or for detecting an overload situation based on the measured values and/or the parameters using time data of the time measuring device. A method for overload monitoring of an electrical system is also described, measured values being determined for a current and/or a voltage of the electrical system; time data being determined; parameters based on the measured values being generated; and an overload situation being detected based on the measured values and/or the parameters using the time data.

Overload monitoring device and method for overload monitoring

A device for current sensing of a power transistor system having a power transistor, a first series circuit which includes a first transistor and a first resistance, the first resistance disposed in a load circuit of the first transistor, a second series circuit which has a second transistor and a second resistance disposed in a load circuit of the second transistor, the first series circuit, the second series circuit and the power transistor situated in parallel with one another, the first resistance connected to the first transistor in an electrically conductive manner when the first transistor is switched on, and the second resistance connected to the second transistor in an electrically conductive manner when the second transistor is switched on, and a gate terminal of the first transistor is connected in an electrically conductive manner to a gate terminal of the power transistor when the power transistor is switched on.

Method and device for current sensing of small currents

A battery sensor data transmission unit is described as including a connection state ascertainment unit for ascertaining a series connection state in which a battery cell is connected in series to one other battery cell with the aid of a power transmission line and/or for determining a bypassing state in which at least one pole of the battery cell is decoupled from at least one other battery cell. Furthermore, the battery sensor data transmission unit includes a data transmission unit designed for outputting a sensor signal, which represents a physical variable in or at the battery cell, in the series connection state to an evaluation device using the power transmission line and/or outputting the sensor signal in the bypassing state to the evaluation device using a battery housing wall as the transmission medium.

A control for an electrical consumer includes a first switching device for connecting an output for the consumer to a first potential, a second switching device for connecting the output to a second potential, a control device for activating the switching devices, a first scanning device for providing a first signal as a function of a switching state of the first switching device, a second scanning device for providing a second signal as a function of a switching state of the second switching device, and a comparator device for determining a difference in the switch-on times of the switching devices on the basis of the determined signals.

Control of a half-bridge

A multiphase DC voltage converter and a method for controlling a multiphase DC voltage converter, having at least two parallel coils which are controlled in a time-shifted manner, at least one control unit for activating the coils, and at least one magnetically sensitive sensor element for detecting a magnetic field generated by the current flow through the coils. The control unit controls the current flow through the coils as a function of an output signal of the at least one sensor element.

Multiphase DC voltage converter and method for controlling a multiphase DC voltage converter

A method for maintaining a predetermined voltage in a battery-supported vehicle electrical system during the operation of an electrical starter includes steps of operating the electrical starter on the vehicle electrical system during a first time phase in series with a limiting resistor, in order to limit the current flowing through the starter, and operating the electrical starter on the vehicle electrical system during a second time phase with a reduced limiting resistance, in order to increase a power converted by the starter. A transition from the first time phase to the second time phase is controlled on the basis of electrical parameters sampled during the first time phase at the limiting resistor.

Voltage control in a vehicle electrical system

A method and a circuit system for operating an electric machine are presented. The method is carried out in particular in a starting phase, a current being limited using a controllable resistor, the controllable resistor being implemented by at least one semiconductor switch, which is controlled using a clocked signal, and the signal being set in such a way that in shutdown phases, the at least one semiconductor switch is not completely shut down.

Method for operating an electric machine

An integrated circuit for information transfer, having a substrate, at least one Hall element which is integrated into the substrate or situated on the substrate, a first coil which is situated essentially concentrically with respect to the Hall element and at a distance from the Hall element in the vertical direction and galvanically separated therefrom, and at least one second coil which is situated essentially concentrically with respect to the Hall element and galvanically separated therefrom and situated at a distance from the Hall element and the first coil in the vertical direction. The first coil and the second coil are electrically connected in series so that a current flow in the same direction results in the coils.

Integrated circuit for information transfer

A current conversion circuit having multiple voltage levels with CMOS gates that switch the output capacitors so as to be coupled to the input of another voltage level to move the charge from one voltage level to another voltage level and thus increase the output current while decreasing the output voltage.

Charge pump for dividing input voltage and multiplying output current

A continuously controlled current increasing charge pump having n series-connected input capacitors coupled to a voltage/current source for developing a constant output voltage of at least ##EQU1## and an output current I.sub.o =nI.sub.in. Regulating circuits are also disclosed to regulate the output voltage. The charge pump consists of plural input switches that switch alternately the positive and negative sides of a like plurality of series-connected capacitors onto at least one output switch and output capacitor. The output switch is synchronized with the input switches and alternates between the negative and the positive output side of each capacitor.

Growing community of inventors

Fellbach, Germany

Werner Schiemann