DE102007035061A1 - Power supply system for motor vehicle, has controller controlling switching conditions of switching units of change-over switch and switches, and on-board power supply units operated with different high voltages and loads - Google Patents
Power supply system for motor vehicle, has controller controlling switching conditions of switching units of change-over switch and switches, and on-board power supply units operated with different high voltages and loads Download PDFInfo
- Publication number
- DE102007035061A1 DE102007035061A1 DE102007035061A DE102007035061A DE102007035061A1 DE 102007035061 A1 DE102007035061 A1 DE 102007035061A1 DE 102007035061 A DE102007035061 A DE 102007035061A DE 102007035061 A DE102007035061 A DE 102007035061A DE 102007035061 A1 DE102007035061 A1 DE 102007035061A1
- Authority
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- Germany
- Prior art keywords
- batteries
- power supply
- switch
- supply system
- consumers
- 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.)
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Classifications
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
- H02J1/082—Plural DC voltage, e.g. DC supply voltage with at least two different DC voltage levels
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft ein Energieversorgungssystem für ein Kraftfahrzeug nach dem Oberbegriff des Anspruchs 1 und ein Verfahren für dessen Steuerung nach dem Oberbegriff des Anspruchs 12. Ein Energieversorgungssystem für ein Kraftfahrzeug umfasst in der Regel mindestens eine Batterie für die Speicherung von elektrischer Energie. Die Batterie wird von einem häufig auch als Lichtmaschine bezeichneten Generator geladen, der von dem Motor des Kraftfahrzeugs angetrieben wird und mechanische Energie in elektrische Energie für die Versorgung des Bordnetzes des Kraftfahrzeugs umwandelt. Während früher für Kraftfahrzeuganwendungen Bordnetze mit 6 V und später mit 12 V Gleichspannung gebräuchlich waren, werden in Zukunft auch Bordnetze mit höherer Spannung, insbesondere 24 V oder auch 48 Volt zum Einsatz kommen, da die zahlreichen elektrischen Verbraucher in modernen Fahrzeugen immer mehr Energie benötigen. Aus Kostengründen kann es dabei sinnvoll sein, herkömmliche bewährte und für eine niedrige Bordnetzspannung entwickelte Verbraucher weiterhin an einer niedrigen Spannung und andere Verbraucher mit einer höheren Spannung zu betreiben. Das Energieversorgungssystem des Kraftfahrzeugs kann dazu beispielsweise 2 in Serie geschaltete 12 V Batterien umfassen, die von einem für 24 V Ladespannung ausgelegten Generator geladen werden.The The invention relates to a power supply system for a Motor vehicle according to the preamble of claim 1 and a method for its control according to the preamble of the claim 12. An energy supply system for a motor vehicle comprises usually at least one battery for storage of electrical energy. The battery is being used by one frequently Also called alternator loaded, the of the Motor of the motor vehicle is driven and mechanical energy in electrical energy for the supply of the electrical system of the motor vehicle converts. While earlier for Automotive applications Bordnetze with 6 V and later with 12 V DC were in use in the future also Bordnetze with higher voltage, in particular 24 V or also 48 volts are used, since the numerous electrical Consumers in modern vehicles need more and more energy. For cost reasons, it may be useful, conventional proven and for a low vehicle electrical system developed consumer continue to be at a low voltage and other consumers with to operate at a higher voltage. The energy supply system of the motor vehicle, for example, 2 connected in series 12V batteries include one for 24V charging voltage designed generator to be loaded.
Aus
Offenbarung der ErfindungDisclosure of the invention
Technische AufgabeTechnical task
Der Erfindung liegt die Aufgabe zugrunde, ein Energieversorgungssystem für ein Kraftfahrzeug mit verbesserten Eigenschaften und geringeren Herstellungskosten anzugeben.Of the Invention is based on the object, a power supply system for a motor vehicle with improved properties and specify lower production costs.
Technische LösungTechnical solution
Ausgehend von einem Energieversorgungssystem der gattungsgemäßen Art wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst. Eine Verbesserung der Eigenschaften des Energieversorgungssystems ergibt sich erfindungsgemäß insbesondere dadurch, dass die in dem mindestens zwei Bordnetze mit unterschiedlich hohen Spannungswerten aufweisenden Energieversorgungssystem vorgesehenen mindestens zwei Batterien möglichst gleichmäßig belastet werden. Durch die gleichmäßigere Belastung kann die Betriebssicherheit des Fahrzeugs erhöht werden. Eine Kosteneinsparung im Vergleich zu herkömmlichen Lösungen ergibt sich insbesondere dadurch, dass für die wechselweise Verbindung eines Verbrauchers oder einer Verbrauchergruppe mit einer der Batterien vergleichsweise preiswerte Schaltmittel vorgesehen sind.outgoing from an energy supply system of the generic type This object is achieved by the features mentioned in claim 1 solved. An improvement of the characteristics of the power supply system results according to the invention in particular by that in the at least two electrical systems with different levels Provided with voltage supply having energy supply system at least two batteries as evenly as possible be charged. Due to the more uniform load the operational safety of the vehicle can be increased. A cost saving compared to conventional solutions arises in particular by the fact that for the alternate connection a consumer or consumer group with one of the batteries comparatively inexpensive switching means are provided.
Weitere Vorteile ergeben sich aus der Beschreibung, der Zeichnung und den Unteransprüchen.Further Benefits result from the description, the drawing and the Dependent claims.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Ausführungsformen der Erfindung werden nachfolgend unter Bezug auf die Zeichnung näher erläutert. Dabei zeigt:embodiments The invention will be described in more detail below with reference to the drawing explained. Showing:
Ausführungsformen der ErfindungEmbodiments of the invention
Zunächst
werden kurz aus dem Stand der Technik bekannte Lösungen
beschrieben, ehe auf die erfindungsgemäße Lösung
eingegangen wird. Es wurden schon Schaltungsanordnungen vorgeschlagen,
um einen für eine Bordnetzspannung von 12 V ausgelegten
Verbraucher, zum Beispiel die Heizung eines Tanks für die
Aufnahme eines für eine selektive katalytische Reaktion
(SCR) vorgesehenen Zusatzmittels, in einem Bordnetz mit 24 V Spannung
zu betreiben. Eine solche bekannte Schaltungsanordnung eines Energieversorgungssystems
Bei
einer in
Beide bekannten Lösungen verwenden fehleranfällige Bauelemente der Leistungselektronik. Bei typischen Anwendungen in einem Fahrzeug entstehen vergleichsweise hohe Zusatzkosten.Both known solutions use error-prone components the power electronics. In typical applications in a vehicle arise comparatively high additional costs.
Anhand
des in
Im
Folgenden wird die Funktionsweise des in
Beziehungsweise bzw. diskret für die Zeit t,
in der die Batterie
Dafür,
dass diese Beziehung erfüllt ist, sorgt das Steuergerät
Bei
einer vorteilhaften Ausführungsvariante der Erfindung wird
die Restkapazität der Batterien
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10014243 A1 [0002] - DE 10014243 A1 [0002]
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007035061A DE102007035061A1 (en) | 2007-07-26 | 2007-07-26 | Power supply system for motor vehicle, has controller controlling switching conditions of switching units of change-over switch and switches, and on-board power supply units operated with different high voltages and loads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007035061A DE102007035061A1 (en) | 2007-07-26 | 2007-07-26 | Power supply system for motor vehicle, has controller controlling switching conditions of switching units of change-over switch and switches, and on-board power supply units operated with different high voltages and loads |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007035061A1 true DE102007035061A1 (en) | 2009-01-29 |
Family
ID=40157260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007035061A Withdrawn DE102007035061A1 (en) | 2007-07-26 | 2007-07-26 | Power supply system for motor vehicle, has controller controlling switching conditions of switching units of change-over switch and switches, and on-board power supply units operated with different high voltages and loads |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007035061A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009002279A1 (en) * | 2009-04-08 | 2010-10-14 | Robert Bosch Gmbh | Electricity supply arrangement for e.g. passenger car, has network provided with network points, where arrangement provides voltage of x volts at one network point and voltage of addition of x and y volts at other network point |
DE102011003032A1 (en) | 2011-01-24 | 2012-07-26 | Robert Bosch Gmbh | Method for controlling the power of consumers |
DE102014207390A1 (en) * | 2014-04-17 | 2015-10-22 | Robert Bosch Gmbh | On-board network and method for operating a vehicle electrical system |
DE102016002668A1 (en) * | 2016-03-04 | 2017-09-07 | Audi Ag | Accumulator for the reversible electrochemical storage of electrical charge by means of a plurality of galvanic cells |
WO2023110202A1 (en) * | 2021-12-16 | 2023-06-22 | Robert Bosch Gmbh | Supply circuit having a computer device for diagnosing a connecting circuit, in particular for power electronics in a vehicle, and method for operating a supply circuit having a computer device for diagnosing a connecting circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10014243A1 (en) | 2000-03-22 | 2001-10-04 | Volkswagen Ag | Dual-battery system has switch feeding current from supply battery to starter battery or from starter battery to starting-related loads depending on operating state |
-
2007
- 2007-07-26 DE DE102007035061A patent/DE102007035061A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10014243A1 (en) | 2000-03-22 | 2001-10-04 | Volkswagen Ag | Dual-battery system has switch feeding current from supply battery to starter battery or from starter battery to starting-related loads depending on operating state |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009002279A1 (en) * | 2009-04-08 | 2010-10-14 | Robert Bosch Gmbh | Electricity supply arrangement for e.g. passenger car, has network provided with network points, where arrangement provides voltage of x volts at one network point and voltage of addition of x and y volts at other network point |
DE102011003032A1 (en) | 2011-01-24 | 2012-07-26 | Robert Bosch Gmbh | Method for controlling the power of consumers |
WO2012100892A2 (en) | 2011-01-24 | 2012-08-02 | Robert Bosch Gmbh | Method for power control of consumers |
RU2606630C2 (en) * | 2011-01-24 | 2017-01-10 | Роберт Бош Гмбх | Method of controlling power of consumers |
DE102014207390A1 (en) * | 2014-04-17 | 2015-10-22 | Robert Bosch Gmbh | On-board network and method for operating a vehicle electrical system |
DE102016002668A1 (en) * | 2016-03-04 | 2017-09-07 | Audi Ag | Accumulator for the reversible electrochemical storage of electrical charge by means of a plurality of galvanic cells |
WO2023110202A1 (en) * | 2021-12-16 | 2023-06-22 | Robert Bosch Gmbh | Supply circuit having a computer device for diagnosing a connecting circuit, in particular for power electronics in a vehicle, and method for operating a supply circuit having a computer device for diagnosing a connecting circuit |
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Legal Events
Date | Code | Title | Description |
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R012 | Request for examination validly filed |
Effective date: 20131031 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |