Robert Boschgmbh

Samsung Sdi Co., Inc.

Chrysanthos Tzivanopoulos

Sven Bergmann

Johannes Swoboda

Thomas Schaedlich

Stefan Butzmann

Jochen Weber

Lisa Lorenz

Dirk Hasenkopf

Patrick Kaupp

Thomas Barabas

Mathis Wolf

Andreas Heyl

Andreas Ruehle

Berengar Krieg

Clemens Schroff

Juergen Seidel

Frank Schindler

Joerg Schneider

Thomas Kaiser

Eduard Reimer

Karsten Thoelmann

Kuen Cheuk Leung

Keonyeol Hwang

Isaias Miguel Alejandro Santucho

The invention relates to a monitoring assembly for an electrical component, a semiconductor switch assembly having a monitoring function, and an energy system. An analysis unit () of the semiconductor switch assembly is configured to determine on the basis of a first voltage divider (), a second voltage divider (), and a measuring device (), a short circuit and/or a deviation from desired switched states in a first semiconductor switch () having a first inverse diode and a second semiconductor switch () having a second inverse diode, the semiconductor switches () being connected in series between an input terminal () and an output terminal () of the semiconductor switch assembly, in such a way that the inverse diodes thereof are arranged anti-serially. In addition, the semiconductor switch assembly is configured to determine, on the basis of a first switch (S) and a second switch (S), a corrective factor for establishing a balance between the first voltage divider () and the second voltage divider ().

Monitoring assembly for an electrical component, semiconductor switch assembly having a monitoring function, and energy system

A diagnostic circuit () for diagnosing a battery disconnect unit () for disconnecting a battery system () from an electrical system (). The battery disconnect unit () includes a first switching element (S) and a second switching element (S). A first connection of the first switching element (S) is connected to a first node point (), and a second connection of the first switching element (S) is connected to the first terminal (). A first connection of the second switching element (S) is connected to the first node point (), and a second connection of the second switching element (S) is connected to the second terminal (). The diagnostic circuit () includes a first voltage divider () and a second voltage divider ().

Diagnostic circuit for a battery disconnect unit, method for diagnosing a battery disconnect unit, battery disconnect unit

A voltage measurement method for an on-board power supply system () of a vehicle, wherein the on-board power supply system () comprises a battery pack () with a plurality of battery cells () and at least one sub-grid () which can be coupled to the battery pack () via contactors (SH+, SH−, SL+, SL−). According to the invention, the voltage measurement method comprises the following method steps: In an initial calibration mode with open contactors (SH+, SH−, SL+, SL−):

Voltage measurement method and operating method for a vehicle on-board power supply system

A battery system having a battery pack with a negative pole, a positive pole and a battery cell, a coupling network having a first negative terminal and a first positive terminal, a pack voltage divider, and a coupling voltage divider. The first positive terminal is connectable to the positive pole via a switch. Optionally, the first negative terminal is connectable to the negative pole via a switch. The pack voltage divider includes a two resistors connected between the positive pole and a first reference point. A negative pack measurement resistor and a negative sub-pack measurement resistor are dis-connectable from the negative pole or the first reference point via a switch. A positive coupling measurement resistor and a positive sub-coupling measurement resistor are connected between the first positive terminal and the first reference point. Two resistors are connected between the first negative terminal and the first reference point.

Battery system, method for diagnosing a battery system, and motor vehicle

A switching element () that comprises a switching unit (), a first and a second coil unit () for closing and opening the switching unit (), wherein the first coil unit () comprises a first coil () and wherein the second coil unit () comprises a second coil (). According to the invention, the first coil unit () comprises a first controllable delay circuit () that is connected in series with the first coil (). The invention further relates to a switching device () that comprises a switching element () according to the invention. The invention further relates to a first and a second method for the operation of the switching device () according to the invention.

Switching element, switching device and method for the operation of the switching device

The invention relates to a shunt resistor () for detecting the status of an electrical energy storage unit (), wherein the shunt resistor () comprises a first layer (), a second layer () and a third layer (). According to the invention, the layers () are arranged in a layered manner in a stacking direction (V), wherein the second layer () is arranged between the first layer () and the third layer (), and wherein the layers () are in physical contact with one another at one of the sides having the greatest respective surface area, and wherein the layers () are arranged at least partially overlapping.

Shunt resistor for detecting the status of an electrical energy storage unit

A method for detecting an internal short circuit in a first electrical energy storage unit of an electrical energy storage device is described, wherein the electrical energy storage device comprises at least two electrical energy storage units including a first electrical energy storage unit and a second electrical energy storage unit electrically connected in parallel in the electrical energy storage device, the method including recording an electric current flowing into or out of the first electrical energy storage unit, recording an electric current flowing into or out of the second electrical energy storage unit, determining a short-circuit current in the first electrical energy storage unit based on the at least two recorded electric currents, and detecting an internal short circuit when the magnitude of the short-circuit current exceeding a predefined short-circuit current threshold.

Method for detecting an internal short circuit in a first electrical energy storage unit of an electrical energy storage device

The invention relates to a current sensor comprising an electric conductor (), through which a first current (I) can flow parallel to a first direction (R) and which comprises three regions () immediately following on from each other in the first direction (R). A middle region () of the three regions () comprises a conductor cross-sectional area that is smaller than a conductor cross-sectional area of each of the two outer regions () of the three regions (). A voltage sensor of the current sensor is designed to measure a first voltage between the two terminals () thereof. The first voltage is the same as a voltage applied to a measuring region () at least partially coinciding with the middle region (). An evaluation unit of the current sensor is designed to determine an existing current value of the first current (I) in accordance with an existing voltage value of the first voltage and a pre-defined resistance value of a first resistance of the measuring region ().

Current sensor and battery comprising such a current sensor

Electrical energy storage system (), comprising at least two strings (STR, STR, STR) interconnected in parallel connection, wherein the strings each have at least two electrical energy storage units () interconnected in series connection, characterized in that at least one first electrically conductive cross-connection () between electrical energy storage units () at an identical first electrical potential in the strings (STR, STR, STR) interconnected in parallel connection is electrically conductively connected via at least one diode () to a means for detecting an electric current () and a controllable electrical energy source (), wherein the diode () is not incorporated into the first electrically conductive cross-connection ().

Electrical energy storage system comprising a cross-connection of a plurality of parallel energy storage strings that is electrically conductively connected to a current detection means via a diode, and method for detecting a conduction fault

The present invention relates to a circuit arrangement for switching a high-voltage MOSFET () for precharging an intermediate circuit capacitance of a high-voltage on-board network with a first circuit assembly (), by means of which the switching times of a high-voltage MOSFET used for charging the intermediate circuit capacitance can be reduced.

Circuit arrangement for precharging an intermediate circuit capacitance of a high-voltage on-board network

A communications system for a battery-management system of a battery includes coupling networks that are each connected or connectable via two input-side connections to a transmission channel, and via two output-side connections to a respective one of a plurality of communications users. The transmission channel can be used for the transmission of communications signals at a transmission frequency and that are to be transmitted and/or received by the communications users during a communications process between the communications users. At least one of the coupling networks has a first and second operating state, in which an input impedance that occurs between the two input-side connections of the respective predefined coupling network at the transmission frequency has two different impedance amounts. A communications user allocated to a predefined coupling network can set the allocated predefined coupling network to each of its two operating states once or multiple times during the communications process.

Communication system for a battery-management system for a battery, and method for operating at least one predefined coupling network of such a communications system

The invention relates to a method for measuring an electric current of a battery () with multiple battery modules (), having the step of measuring a temperature related to the battery module (). According to the method, the temperature of a connector is first determined for at least one battery module () using the measured temperature and a temperature model, and the electric resistance of the connector is determined using a resistance model and the temperature of the connector. The electric voltage which drops at the connector is then measured, and the electric current flowing through the connector is calculated from the voltage. The invention additionally relates to a corresponding device and to a battery comprising such a device.

Method and device for measuring the electric current of a battery with multiple battery modules

Electromechanical adapter having at least one controller, wherein the adapter comprises at least a first interface for communication with at least one monitoring unit at the battery, a second interface for communication with a monitoring unit that is superordinate to the monitoring unit at the battery, and a third interface for the connection of at least one sensor and/or actuator, wherein the controller converts signals between the first and second interfaces.

Electromechanical adapter for communicating between interfaces

A circuit arrangement for charging a DC link capacitor with electrical energy from a charging battery includes a first switching element. The first switching element can optionally electrically connect a first connection contact of the circuit arrangement for the charging battery to a second connection contact of the circuit arrangement for the DC link capacitor. The circuit arrangement also includes an electrical pre-charging resistor that can connect in parallel with the first switching element. The circuit arrangement also includes two second switching elements that can be connected in series with the pre-charging resistor and in parallel with the first switching element.

Circuit arrangement and a method for charging a dc link capacitor, as well as a battery and motor vehicle comprising such a circuit arrangement

The invention relates to a battery system () with a battery (), which is designed to supply a high voltage network () with electric energy, and a measuring device () for measuring at least one insulation resistance provided between the battery () and a housing of the battery (). The measuring device () is equipped with two measuring paths (), each of which is paired with one of two high-voltage connections () of the battery (), each of which comprises a series circuit that comprises a first resistor () and a relay (), and each of which is connected between the paired high-voltage connection () and a point () that has a housing potential. Furthermore, each series circuit has a semiconductor switch (). The measuring device () also has two functional modes in which the relays () of the measuring paths () are closed. When switched to a passive functional mode of the two functional modes, the measuring device () is designed to open each semiconductor switch () or to keep the semiconductor switch in an open state. When switched to an active functional mode of the two functional modes, the measuring device () is additionally designed to alternately open and close the semiconductor switches (), to measure a first voltage which drops over the first resistor () of each measuring path () when the semiconductor switch () of the corresponding measuring path () is closed, and to determine a corresponding insulation resistance of the battery () using each measured first voltage.

Battery system with a battery, which is designed to supply a high-voltage network with electric energy, and a measuring device for measuring at least one insulation resistance of the battery

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Remseck am Neckar, Germany

Chrysanthos Tzivanopoulos