DE102011002804A1 - Battery module for battery connected with electric drive motor for driving e.g. hybrid car, has voltage converter with input connected with connection point and another input connected with pole of module - Google Patents
Battery module for battery connected with electric drive motor for driving e.g. hybrid car, has voltage converter with input connected with connection point and another input connected with pole of module Download PDFInfo
- Publication number
- DE102011002804A1 DE102011002804A1 DE102011002804A DE102011002804A DE102011002804A1 DE 102011002804 A1 DE102011002804 A1 DE 102011002804A1 DE 102011002804 A DE102011002804 A DE 102011002804A DE 102011002804 A DE102011002804 A DE 102011002804A DE 102011002804 A1 DE102011002804 A1 DE 102011002804A1
- Authority
- DE
- Germany
- Prior art keywords
- battery
- battery module
- pole
- transistors
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Batteriemodul mit einer Niederspannungsversorgung, eine Batterie mit einer Mehrzahl von in Serie geschalteten Batteriemodulen und ein Kraftfahrzeug mit einer solchen Batterie.The present invention relates to a battery module with a low-voltage power supply, a battery having a plurality of battery modules connected in series, and a motor vehicle having such a battery.
Stand der TechnikState of the art
Es zeichnet sich ab, dass in Zukunft sowohl bei stationären Anwendungen als auch bei Fahrzeugen wie Hybrid- und Elektrofahrzeugen vermehrt Batteriesysteme zum Einsatz kommen werden. Um die für eine jeweilige Anwendung gegebenen Anforderungen an Spannung und zur Verfügung stellbarer Leistung erfüllen zu können, werden eine hohe Zahl von Batteriezellen in Serie geschaltet. Der Ausfall einer Batteriezelle kann wegen der Serienschaltung zum Ausfall der Batterie und dieser wiederum zu einem Ausfall des Gesamtsystems führen, weshalb insbesondere für sicherheitsrelevante Anwendungen hohe Anforderungen an die Zuverlässigkeit der Batterie gestellt werden. Um den Zustand der Batterie und der einzelnen Batteriezellen möglichst genau erfassen und so einen drohenden Ausfall einer Batteriezelle rechtzeitig erkennen zu können, werden neben anderen Parametern der Batterie wie Batterietemperatur und Batteriestrom auch die Spannungen der Batteriezellen regelmäßig gemessen. Für die Parametererfassung werden gewöhnlich elektronische Schaltungselemente wie beispielsweise Sensoren und Mikrocontroller verwendet, die aus einer im Verhältnis zur Batteriespannung niedrigen und insbesondere gegenüber der variablen Batteriespannung stabilen Niederspannungsversorgung versorgt werden sollten. Aufgrund der hohen Sicherheitsanforderungen an die Isolierung sämtlicher unmittelbar mit der Batterie verbundenen Teile von deren Umgebung, ist es wünschenswert, diese Niederspannungsversorgung lokal aus der Batterie zu speisen.It is becoming apparent that in the future, battery systems will increasingly be used in stationary applications as well as in vehicles such as hybrid and electric vehicles. In order to meet the voltage and available power requirements of a particular application, a large number of battery cells are connected in series. The failure of a battery cell can lead to failure of the battery due to the series connection to the failure of the battery and this in turn to a failure of the overall system, which is why high demands are placed on the reliability of the battery especially for safety-related applications. In order to detect the condition of the battery and the individual battery cells as accurately as possible and to detect an imminent failure of a battery cell in good time, the voltages of the battery cells are regularly measured in addition to other parameters of the battery such as battery temperature and battery current. For the parameter detection usually electronic circuit elements such as sensors and micro-controllers are used, which should be supplied from a low in relation to the battery voltage low and in particular to the variable battery voltage low-voltage supply. Due to the high safety requirements for the isolation of all directly connected to the battery parts of their environment, it is desirable to feed this low-voltage power supply locally from the battery.
Dazu ist es bekannt, einen Linearregler aus der Batterie zu versorgen, also eingangsseitig mit den Plus- und Minuspolen der Batterie zu verbinden, wobei der Linearregler eine geregelte niedrige Versorgungsspannung für die weiteren Schaltungselemente ausgibt. Ein Beispiel hierfür zeigt die
Offenbarung der ErfindungDisclosure of the invention
Erfindungsgemäß wird daher ein Batteriemodul mit einer Mehrzahl von in Serie geschalteten Batteriezellen eingeführt. Die Batteriezellen unterteilen sich dabei in eine zwischen einen ersten Pol des Batteriemoduls und einen Verbindungspunkt geschaltete erste Anzahl von ersten Batteriezellen und in eine zwischen den Verbindungspunkt und einen zweiten Pol des Batteriemoduls geschaltete zweite Anzahl von zweiten Batteriezellen. Das Batteriemodul weist außerdem eine Betriebsparametermesseinheit, welche ausgebildet ist, wenigstens einen Betriebsparameter des Batteriemoduls zu messen und an einen Mikrocontroller zu übermitteln, und eine Niederspannungsversorgung auf, welche ausgebildet ist, den Mikrocontroller mit einer Betriebsspannung zu versorgen. Erfindungsgemäß umfasst die Niederspannungsversorgung einen Spannungskonverter, der einen mit dem Verbindungspunkt verbundenen ersten Eingang, einen mit dem zweiten Pol des Batteriemoduls verbundenen zweiten Eingang und einen mit einem Eingang für die Betriebsspannung des Mikrocontrollers verbundenen Ausgang aufweist. Der Spannungskonverter kann beispielsweise ein Linearregler oder auch ein DC/DC-Umsetzer sein.According to the invention, therefore, a battery module is introduced with a plurality of battery cells connected in series. The battery cells are subdivided into a first number of first battery cells connected between a first pole of the battery module and a connection point and a second number of second battery cells connected between the connection point and a second pole of the battery module. The battery module also has an operating parameter measuring unit, which is designed to measure at least one operating parameter of the battery module and to transmit it to a microcontroller, and a low-voltage supply, which is designed to supply the microcontroller with an operating voltage. According to the invention, the low-voltage supply comprises a voltage converter which has a first input connected to the connection point, a second input connected to the second pole of the battery module and an output connected to an input for the operating voltage of the microcontroller. The voltage converter may be, for example, a linear regulator or a DC / DC converter.
Die Erfindung bietet den Vorteil, dass die Eingangsspannung des Spannungskonverters unabhängig von der Spannung des Batteriemoduls wird, wodurch das Problem der steigenden Verlustleistung des Spannungskonverters gelöst wird. Beispiele für zu messende Betriebsparameter des Batteriemoduls sind die Temperatur, die Batteriemodulspannung, der Ausgangsstrom und die Zellspannungen der Batteriezellen des Batteriemoduls.The invention offers the advantage that the input voltage of the voltage converter becomes independent of the voltage of the battery module, whereby the problem of increasing power loss of the voltage converter is solved. Examples of operating parameters of the battery module to be measured are the temperature, the battery module voltage, the output current and the cell voltages of the battery cells of the battery module.
Besonders bevorzugt beträgt dabei die zweite Anzahl der zwischen den Verbindungspunkt und den zweiten Pol des Batteriemoduls geschalteten Batteriezellen drei oder vier. Insbesondere bei Verwendung von Lithium-Ionen-Batteriezellen ergibt sich eine Eingangsspannung für den Spannungskonverter, die eine niedrige Verlustleistung im Spannungskonverter bedingt, aber auch bei bereits relativ stark entladenen Batteriezellen ausreichend hoch ist und genügend Leistung für die Niederspannungsversorgung bereitstellen kann.Particularly preferably, the second number of battery cells connected between the connection point and the second pole of the battery module is three or four. In particular, when using lithium-ion battery cells results in an input voltage for the voltage converter, which has a low power loss in Voltage converter conditionally, but even with already relatively heavily discharged battery cells is sufficiently high and can provide enough power for the low-voltage supply.
Das Batteriemodul kann eine mit den Batteriezellen verbundene Cell-Balancing-Einheit aufweisen, welche ausgebildet ist, Ladungszustände der Batteriezellen einander anzugleichen. Die Cell-Balancing-Einheit wird dabei bevorzugt aus der Niederspannungsversorgung versorgt. Die Cell-Balancing-Einheit bietet den Vorteil, dass die aufgrund des Spannungskonverters größere Belastung der zweiten Batteriezellen durch das Cell-Balancing, also durch den Ladungsausgleich zwischen den Batteriezellen, ausgeglichen werden kann.The battery module may have a cell-balancing unit connected to the battery cells, which is designed to equalize charge states of the battery cells. The cell-balancing unit is preferably supplied from the low-voltage supply. The cell-balancing unit has the advantage that the greater stress on the second battery cells due to the voltage converter can be compensated for by the cell balancing, that is to say by the charge balance between the battery cells.
Das Batteriemodul besitzt bevorzugt eine Kaskoden-Schaltung, welche eine dritte Anzahl von Transistoren enthält. Die dritte Anzahl der Transistoren entspricht dabei der ersten Anzahl von Batteriezellen. Eine Steuerelektrode jedes der Transistoren ist mit einem zweiten Pol einer jeweiligen zugeordneten ersten Batteriezelle verbunden. Die Transistoren sind dabei zwischen den ersten Pol des Batteriemoduls und den ersten Eingang des Spannungskonverters in Serie geschaltet.The battery module preferably has a cascode circuit which contains a third number of transistors. The third number of transistors corresponds to the first number of battery cells. A control electrode of each of the transistors is connected to a second pole of a respective associated first battery cell. The transistors are connected in series between the first pole of the battery module and the first input of the voltage converter.
Bei dieser Ausführungsform der Erfindung ist der erste Eingang des Spannungskonverters nur mittelbar über einen untersten der Transistoren mit dem Verbindungspunkt zwischen den ersten und zweiten Batteriezellen verbunden. Die Kaskode bietet zwei große Vorteile: einerseits wird die Verlustleistung bei der Bereitstellung einer Niederspannungsversorgung auf mehrere Schaltungselemente, namentlich den Spannungskonverter und die Transistoren der Kaskode, aufgeteilt, andererseits wird auch die Belastung des Batteriemoduls durch den Spannungskonverter gleichmäßig auf alle Batteriezellen verteilt.In this embodiment of the invention, the first input of the voltage converter is connected only indirectly via a lowermost of the transistors to the connection point between the first and second battery cells. The cascode offers two major advantages: on the one hand, the power loss in the provision of a low-voltage power supply to several circuit elements, namely the voltage converter and the transistors of the cascode divided, on the other hand, the load of the battery module is evenly distributed by the voltage converter to all battery cells.
Die Steuerelektrode eines untersten Transistors der Mehrzahl von Transistoren ist dabei bevorzugt mit dem Verbindungspunkt und der Emitter oder die Source des untersten Transistors mit dem ersten Anschluss des Spannungskonverters verbunden. Außerdem kann der Kollektor oder die Drain eines obersten Transistors der Mehrzahl von Transistoren mit dem ersten Pol des Batteriemoduls verbunden sein.The control electrode of a lowermost transistor of the plurality of transistors is preferably connected to the connection point and the emitter or the source of the lowermost transistor to the first terminal of the voltage converter. In addition, the collector or the drain of an uppermost transistor of the plurality of transistors may be connected to the first pole of the battery module.
Bevorzugt ist dabei der Emitter oder die Source eines jeweiligen verbleibenden Transistors der Mehrzahl von Transistoren mit dem Kollektor oder der Drain eines benachbarten verbleibenden Transistors oder des untersten Transistors verbunden. Außerdem ist bei dieser Ausführungsform bevorzugt der Kollektor oder die Drain eines jeweiligen verbleibenden Transistors der Mehrzahl von Transistoren mit dem Emitter oder der Source eines benachbarten verbleibenden Transistors oder des obersten Transistors verbunden.Preferably, the emitter or the source of a respective remaining transistor of the plurality of transistors is connected to the collector or the drain of an adjacent remaining transistor or the lowermost transistor. In addition, in this embodiment, preferably, the collector or the drain of a respective remaining transistor of the plurality of transistors is connected to the emitter or the source of an adjacent remaining transistor or the uppermost transistor.
Besonders bevorzugt sind die Batteriezellen Lithium-Ionen-Batteriezellen. Lithium-Ionen-Batteriezellen besitzen eine verhältnismäßig hohe Zellspannung, so dass das Problem der erhöhten Verlustleistung in dem Spannungskonverter bei Verwendung solcher Batteriezellen besonders ausgeprägt ist.Particularly preferably, the battery cells are lithium-ion battery cells. Lithium-ion battery cells have a relatively high cell voltage, so that the problem of increased power dissipation in the voltage converter when using such battery cells is particularly pronounced.
Ein zweiter Aspekt der Erfindung führt eine Batterie mit einer Mehrzahl von in Serie geschalteten Batteriemodulen gemäß dem ersten Erfindungsaspekt ein, bei dem die Mikrocontroller jedes der Batteriemodule über einen Kommunikationsbus miteinander verbunden und ausgebildet sind, die von der Betriebsparametermesseinheit des jeweiligen Batteriemoduls gemessenen Betriebsparameter des Batteriemoduls über den Kommunikationsbus zu senden.A second aspect of the invention introduces a battery having a plurality of battery modules connected in series according to the first aspect of the invention, in which the microcontrollers of each of the battery modules are connected and configured via a communication bus, the operating parameters of the battery module measured by the operating parameter measuring unit of the respective battery module to send the communication bus.
Ein dritter Erfindungsaspekt betrifft ein Kraftfahrzeug mit einem elektrischen Antriebsmotor zum Antreiben des Kraftfahrzeuges und einer mit dem elektrischen Antriebsmotor verbundenen Batterie gemäß dem vorhergehenden Erfindungsaspekt.A third aspect of the invention relates to a motor vehicle having an electric drive motor for driving the motor vehicle and a battery connected to the electric drive motor according to the preceding aspect of the invention.
Zeichnungendrawings
Ausführungsbeispiele der Erfindung werden anhand der Zeichnungen und der nachfolgenden Beschreibung näher erläutert, wobei gleiche Bezugszeichen gleiche oder funktional gleichartige Komponenten bezeichnen. Es zeigen:Embodiments of the invention will be explained in more detail with reference to the drawings and the description below, wherein like reference numerals designate like or functionally similar components. Show it:
Ausführungsformen der ErfindungEmbodiments of the invention
Beispielhaft für vom Spannungskonverter
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011002804A DE102011002804A1 (en) | 2011-01-18 | 2011-01-18 | Battery module for battery connected with electric drive motor for driving e.g. hybrid car, has voltage converter with input connected with connection point and another input connected with pole of module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011002804A DE102011002804A1 (en) | 2011-01-18 | 2011-01-18 | Battery module for battery connected with electric drive motor for driving e.g. hybrid car, has voltage converter with input connected with connection point and another input connected with pole of module |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011002804A1 true DE102011002804A1 (en) | 2012-07-19 |
Family
ID=46510171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011002804A Pending DE102011002804A1 (en) | 2011-01-18 | 2011-01-18 | Battery module for battery connected with electric drive motor for driving e.g. hybrid car, has voltage converter with input connected with connection point and another input connected with pole of module |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102011002804A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10220939A1 (en) * | 2001-05-11 | 2002-11-14 | Denso Corp | Vehicle power supply device and method for controlling the same |
DE102007046033A1 (en) * | 2006-09-30 | 2008-05-08 | Sanyo Electric Co., Ltd., Moriguchi | Power supply device for motor vehicles |
DE102009000396A1 (en) * | 2009-01-23 | 2010-07-29 | Robert Bosch Gmbh | Voltage detection of battery cells |
-
2011
- 2011-01-18 DE DE102011002804A patent/DE102011002804A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10220939A1 (en) * | 2001-05-11 | 2002-11-14 | Denso Corp | Vehicle power supply device and method for controlling the same |
DE102007046033A1 (en) * | 2006-09-30 | 2008-05-08 | Sanyo Electric Co., Ltd., Moriguchi | Power supply device for motor vehicles |
DE102009000396A1 (en) * | 2009-01-23 | 2010-07-29 | Robert Bosch Gmbh | Voltage detection of battery cells |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2661786B1 (en) | Battery with autonomous cell balancing | |
EP2499506B1 (en) | Architecture of a battery and control device | |
DE102014222676B4 (en) | MONITORING THE VOLTAGE OF A BATTERY PACK IN AN ELECTRIC VEHICLE | |
EP2616267B1 (en) | Battery having cell voltage and battery current detection and comprising only one electrical isolation device | |
DE102012222749A1 (en) | Battery- sensor and/or monitoring device for monitoring e.g. power of high voltage direct current battery in hybrid vehicle, has control device detecting difference between accepted- and actual-values of resistor when current values differ | |
EP2389597B1 (en) | Detecting the voltage in battery cells | |
DE102011079292A1 (en) | Battery management system and associated method for determining a state of charge of a battery, battery with battery management system and motor vehicle with battery management system | |
WO2011128133A1 (en) | Battery comprising a freely selectable number of battery cells | |
DE102014206694A1 (en) | Precharge circuit arrangement, power supply arrangement and method for connecting a consumer to a DC high voltage source | |
DE102017214302A1 (en) | Switch-off device for an electrical supply network | |
EP2619844A1 (en) | Battery system and method for determining battery module voltages | |
EP2640593B1 (en) | Autonomous battery balancing | |
EP2572208A2 (en) | Arrangement for measuring a single cell in a rechargeable battery pack and rechargeable battery pack comprising such an arrangement | |
DE102009045519A1 (en) | Battery system and method for balancing the battery cells of a battery system | |
DE102011004980A1 (en) | Battery module and battery with redundant cell voltage detection | |
WO2012025280A2 (en) | Battery system having a dc/dc converter in the high-voltage network for supplying a microcontroller | |
DE102016220329A1 (en) | Voltage Detection Circuit and Voltage Detection Method | |
EP2798361B1 (en) | Device and method for measuring a minimum cell voltage | |
DE102011002618A1 (en) | Battery cell module of battery for motor vehicle e.g. hybrid car, has electronics unit that detects battery cell voltage, and compares detected voltage with preset voltage so as to allow discharge current to flow from battery cell | |
DE102011002804A1 (en) | Battery module for battery connected with electric drive motor for driving e.g. hybrid car, has voltage converter with input connected with connection point and another input connected with pole of module | |
DE102021130379A1 (en) | DUAL SUPPLY VEHICLE ELECTRICAL SYSTEM WITH PROTECTION OF MOTION CONTROL COMPONENTS | |
DE102017108872B4 (en) | High-side switching device and manufacturing method for such | |
DE102012209177B4 (en) | Battery system with separately connected determination circuit as well as battery and motor vehicle with battery system | |
EP4202452A1 (en) | Device and method for calibrating a battery emulator | |
DE102013020673A1 (en) | Fuel cell system and vehicle with a fuel cell system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R081 | Change of applicant/patentee |
Owner name: SAMSUNG SDI CO., LTD., YONGIN-SI, KR Free format text: FORMER OWNER: SB LIMOTIVE COMPANY LTD., SB LIMOTIVE GERMANY GMBH, , KR Effective date: 20130425 Owner name: SAMSUNG SDI CO., LTD., YONGIN-SI, KR Free format text: FORMER OWNERS: SB LIMOTIVE COMPANY LTD., SUWON, KYONGGI, KR; SB LIMOTIVE GERMANY GMBH, 70469 STUTTGART, DE Effective date: 20130425 Owner name: ROBERT BOSCH GMBH, DE Free format text: FORMER OWNERS: SB LIMOTIVE COMPANY LTD., SUWON, KYONGGI, KR; SB LIMOTIVE GERMANY GMBH, 70469 STUTTGART, DE Effective date: 20130425 Owner name: ROBERT BOSCH GMBH, DE Free format text: FORMER OWNER: SB LIMOTIVE COMPANY LTD., SB LIMOTIVE GERMANY GMBH, , KR Effective date: 20130425 Owner name: SAMSUNG SDI CO., LTD., KR Free format text: FORMER OWNER: SB LIMOTIVE COMPANY LTD., SB LIMOTIVE GERMANY GMBH, , KR Effective date: 20130425 |
|
R082 | Change of representative |
Representative=s name: GULDE & PARTNER PATENT- UND RECHTSANWALTSKANZL, DE Effective date: 20130425 Representative=s name: GULDE HENGELHAUPT ZIEBIG & SCHNEIDER, DE Effective date: 20130425 |
|
R012 | Request for examination validly filed |