DE102005002490A1 - Motor vehicle electrical system switching device, has charging and discharging unit to charge and discharge electrical components of vehicle electrical system and switched before closing or after opening of isolating switch - Google Patents
Motor vehicle electrical system switching device, has charging and discharging unit to charge and discharge electrical components of vehicle electrical system and switched before closing or after opening of isolating switch Download PDFInfo
- Publication number
- DE102005002490A1 DE102005002490A1 DE102005002490A DE102005002490A DE102005002490A1 DE 102005002490 A1 DE102005002490 A1 DE 102005002490A1 DE 102005002490 A DE102005002490 A DE 102005002490A DE 102005002490 A DE102005002490 A DE 102005002490A DE 102005002490 A1 DE102005002490 A1 DE 102005002490A1
- Authority
- DE
- Germany
- Prior art keywords
- switching element
- electrical system
- vehicle electrical
- battery
- motor vehicle
- 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.)
- Ceased
Links
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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/008—Intrinsically safe circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Schließen und Öffnen eines Stromkreises eines Kraftfahrzeugbordnetzes mit einem Batterietrennschalter, der ein mechanisches Schaltelement umfasst.The The invention relates to a device and a method for closing and opening a circuit a motor vehicle electrical system with a battery disconnector, the a mechanical switching element comprises.
Aus
dem Stand der Technik, zum Beispiel aus der Druckschrift mit der
Veröffentlichungsnummer
In der jüngeren Vergangenheit werden zunehmend Starterbatterien mit Spannungen bis zu 42 V eingeführt. Eine Vielzahl der in den Kraftfahrzeugbordnetzen eingesetzten elektrischen Komponenten weisen Kapazitäten auf. Derartige Kapazitäten werden beim Einschalten des Kraftfahrzeugbordnetzes zunächst mit hohen Strömen und geringen Spannungen aufgeladen. Dieses führt dazu, dass nach dem Einschalten ein hoher Strom über den Batterietrennschalter fließt und gleichzeitig eine große Spannung über dem Batterietrennschalter abfällt. Nach dem Einschwingen des Systems ist der über dem Batterietrennschalter fließende Strom reduziert.In the younger ones More and more starter batteries with tensions are becoming a thing of the past introduced to 42V. A variety of electrical used in the motor vehicle electrical systems Components have capacities on. Such capacities are when you turn on the vehicle electrical system with first high currents and low voltages charged. This causes after switching on a high current over the battery disconnect switch flows and at the same time a big one Tension over the battery disconnect switch drops. After the system has settled, it is above the battery disconnect switch flowing Electricity reduced.
Die zunächst hohen Ströme und hohen Spannungen an den Batterietrennschaltern beim Einschalten und ein Prellen der mechanischen Schaltkontakte des Batterietrennschalters führen zu Lichtbögen zwischen den elektrischen Kontakten. Diese Lichtbögen führen zu einem erhöhten Verschleiß der Kontakte. Der Verschleiß ist unerwünscht.The first high currents and high voltages on the battery disconnectors at power up and a bouncing of the mechanical switching contacts of the battery disconnect switch to lead to arcs between the electrical contacts. These arcs lead to an increased Wear of the contacts. The wear is undesirable.
VORTEILE DER ERFINDUNGADVANTAGES OF INVENTION
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art so zu verbessern, dass beim Schließen des Batterietrennschalters keine Lichtbögen entstehen. Diese Aufgabe wird durch eine Vorrichtung nach Anspruch 1 und durch ein Verfahren nach Anspruch 9 gelöst.Of the Invention is therefore based on the object, a device of to improve the type mentioned above so that when closing the Battery disconnector no arcing occur. This task is achieved by a device according to claim 1 and by a method solved according to claim 9.
Eine erfindungsgemäße Vorrichtung der eingangs genannten Art weist parallel geschaltet zu dem Batterietrennschalter ein Mittel zum Laden beziehungsweise Entladen von elektrischen Komponenten des Kraftfahrzeugbordnetzes, insbesondere von Kapazitäten, vor einem Schließen beziehungsweise nach einem Öffnen des Batterietrennschalters auf, um das Entstehen von Lichtbögen am Schaltelement des Batterietrennschalters zu verhindern. Mit diesem Mittel zum Laden beziehungsweise Entladen können vor dem Schließen des Batterietrennschalters die Kapazitäten im Kraftfahrzeugbordnetz aufgeladen werden. Dadurch werden beim Schließen des Batterietrennschalters hohe Ströme und Spannungen am Batterietrennschalter verhindert. Lichtbögen können dort dann nicht mehr entstehen.A inventive device of the type mentioned has in parallel with the battery disconnector a means for charging or discharging electrical components of the Motor vehicle electrical system, in particular of capacities before a closing or after opening the battery disconnect switch to the emergence of arcing on the switching element of the To prevent battery disconnect switch. With this means of loading or unloading before the closing the battery disconnector the capacity in the motor vehicle electrical system to be charged. This will be when closing the battery disconnect switch high currents and prevents voltages at the battery disconnector. Arcs can be there then not arise anymore.
Das Mittel zum Laden beziehungsweise Entladen kann vorteilhaft zumindest ein Element zum Begrenzen eines elektrischen Stroms, insbesondere einen ohmschen Widerstand, und ein Halbleiterschaltelement umfassen. Das Halbleiterschaltelement und das Element zum Begrenzen des elektrischen Stroms sind vorzugsweise in Serie parallel zum Batterietrennschalter geschaltet. Sofern ein Kraftfahrzeugbordnetz in Betrieb genommen werden soll, kann das Halbleiterschaltelement geschlossen werden, um den Batterietrennschalter zu überbrücken. Der dann durch das Halbleiterschaltelement fließende elektrische Strom wird durch das Element zum Begrenzen des elektrischen Stroms begrenzt. Dadurch wird verhindert, dass das Halbleiterschaltelement durch zu hohe Einschaltströme zum Aufladen der Kapazitäten Schaden nimmt. Sind die Kapazitäten in dem Kraftfahrzeugbordnetz auf ein gewisses Maß aufgeladen, kann der Batterietrennschalter geschlossen werden, ohne das hohe Einschaltströme entstehen, da die Kapazitäten zumindest teilweise bereits aufgeladen sind. Lichtbögen entstehen daher beim Zuschalten der Batterietrennschalter nicht.The Means for loading or unloading can advantageously at least an element for limiting an electric current, in particular a ohmic resistance, and a semiconductor switching element include. The Semiconductor switching element and the element for limiting the electrical Currents are preferably in series parallel to the battery disconnect switch connected. If a motor vehicle electrical system put into operation is to be, the semiconductor switching element can be closed, to bypass the battery disconnect switch. Of the then flowing through the semiconductor switching element electrical current limited by the element for limiting the electric current. Thereby prevents the semiconductor switching element by too high inrush to charge the capacities Takes damage. Are the capacities charged to a certain extent in the vehicle electrical system, the battery disconnect switch be closed, without the high inrush currents arise because the capacity at least partially charged already. Arcs therefore occur when connecting the battery disconnect switch is not.
Das Halbleiterschaltelement eines Mittels zum Laden beziehungsweise Entladen einer erfindungsgemäßen Vorrichtung kann ein Transistor sein. Bei dem Transistor kann es sich um einen Feldeffekttransistor, insbesondere um einen IGFET handeln.The Semiconductor switching element of a means for loading or Unloading a device according to the invention can be a transistor. The transistor may be a Field effect transistor, in particular to act an IGFET.
Eine erfindungsgemäße Vorrichtung kann einen Spannungssensor zum Messen der über der Vorrichtung abfallenden elektrischen Spannung aufweisen.A inventive device may include a voltage sensor for measuring the voltage drop across the device have electrical voltage.
Ferner weist eine erfindungsgemäße Vorrichtung vorteilhaft ein Steuermittel auf, welches das Öffnen beziehungsweise Schließen des Batterietrennschalters und des Halbleiterschaltelements steuert.Further has a device according to the invention Advantageously, a control means, which the opening or closing of the Battery isolation switch and the semiconductor switching element controls.
Eine derartige erfindungsgemäße Vorrichtung kann so betrieben werden, dass zum Schließen des Kraftfahrzeugbordnetzes zunächst das Halbleiterschaltelement geschlossen wird, anschließend nach einer Mindesteinschaltzeit (in welcher die Kapazitäten aufgeladen werden können) und/oder nach Unterschreiten einer Maximalspannung über der Vorrichtung der Batterietrennschalter geschlossen wird und dann das Halbleiterschaltelement wieder geöffnet wird. Ein solches erfindungsgemäßes Verfahren kann ferner so ablaufen, dass das Halbleiterschaltelement nur dann geöffnet wird, wenn nach der Mindesteinschaltzeit die Maximalspannung unterschritten wird. Wird die Maximalspannung nicht unterschritten, wird das Halbleiterschaltelement geöffnet, ohne dass der Batterietrennschalter geschlossen wird. Die Maximalspannung ist so gering, dass beim Schließen des Batterietrennschalters keine Lichtbögen entstehen.Such a device according to the invention can be operated so that the semiconductor switching element is first closed to close the motor vehicle electrical system, then after a Mindesteinschaltzeit (in which the capacity can be charged) and / or after Falling below a maximum voltage across the device of the battery disconnector is closed and then the semiconductor switching element is opened again. Such a method according to the invention can furthermore proceed in such a way that the semiconductor switching element is only opened if the maximum voltage is undershot after the minimum on-time. If the maximum voltage is not undershot, the semiconductor switching element is opened without the battery disconnect switch is closed. The maximum voltage is so low that no arcing occurs when the battery disconnect switch is closed.
ZEICHNUNGENDRAWINGS
Ein Ausführungsbeispiel für eine erfindungsgemäße Anordnung und Beispiele für erfindungsgemäße Verfahren sind in den Zeichnungen näher dargestellt. Es zeigtOne embodiment for one inventive arrangement and examples of inventive method are closer in the drawings shown. It shows
BESCHREIBUNG DER AUSFÜHRUNGSBEISPIELEDESCRIPTION THE EMBODIMENTS
Die
in der
Die
erfindungsgemäße Vorrichtung
Parallel
zu dem Batterietrennschalter
Soll
der Stromkreis des Kraftfahrzeugbordnetzes über den Batterietrennschalter
Das
Mittel
Die
Anode der Diode
Nach
dem in
Das
Verfahren, wie es in
Ist
dagegen nach der Vorladezeit xx die Maximalspannung Umax nicht
erreicht, liegt ein Fehler vor. Bei diesem Fehler kann es sich beispielsweise um
einen Kurzschluss im Kraftfahrzeugbordnetz handeln der ein Absinken
der Spannung über
der erfindungsgemäßen Vorrichtung
verhindert. Daraufhin wird das Halbleiterschalelement
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005002490A DE102005002490A1 (en) | 2005-01-19 | 2005-01-19 | Motor vehicle electrical system switching device, has charging and discharging unit to charge and discharge electrical components of vehicle electrical system and switched before closing or after opening of isolating switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005002490A DE102005002490A1 (en) | 2005-01-19 | 2005-01-19 | Motor vehicle electrical system switching device, has charging and discharging unit to charge and discharge electrical components of vehicle electrical system and switched before closing or after opening of isolating switch |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005002490A1 true DE102005002490A1 (en) | 2006-07-27 |
Family
ID=36650458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005002490A Ceased DE102005002490A1 (en) | 2005-01-19 | 2005-01-19 | Motor vehicle electrical system switching device, has charging and discharging unit to charge and discharge electrical components of vehicle electrical system and switched before closing or after opening of isolating switch |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005002490A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010151393A1 (en) | 2009-06-22 | 2010-12-29 | Motorola, Inc. | Method and apparatus for intrinsically safe operation of a communication device |
KR101740242B1 (en) | 2015-07-09 | 2017-05-26 | 공주대학교 산학협력단 | Protection circuit module for high voltage level battery pack and energy storage system using the same |
DE102012210600B4 (en) | 2012-06-22 | 2023-03-02 | Robert Bosch Gmbh | Charging and/or disconnecting device for a battery system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3701838A1 (en) * | 1987-01-23 | 1988-08-04 | Hella Kg Hueck & Co | DEVICE FOR PROTECTING RELAY CONTACTS |
DE4012470A1 (en) * | 1990-04-19 | 1991-10-24 | Hella Kg Hueck & Co | Relay contact protector in car network - is for relay with break and make contacts, conductively coupled to consumer appliance |
DE4244119C1 (en) * | 1992-12-24 | 1994-03-24 | Hella Kg Hueck & Co | Protecting relay contacts against overloading - using controlled switch with switching path in parallel with contacts and monitoring elements for load current circuit |
DE10020304A1 (en) * | 2000-04-17 | 2001-10-25 | Volkswagen Ag | On-board electrical system has generator and battery each with associated isolating switch, whereby generator and battery can be connected to electrical loads via both switches |
-
2005
- 2005-01-19 DE DE102005002490A patent/DE102005002490A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3701838A1 (en) * | 1987-01-23 | 1988-08-04 | Hella Kg Hueck & Co | DEVICE FOR PROTECTING RELAY CONTACTS |
DE4012470A1 (en) * | 1990-04-19 | 1991-10-24 | Hella Kg Hueck & Co | Relay contact protector in car network - is for relay with break and make contacts, conductively coupled to consumer appliance |
DE4244119C1 (en) * | 1992-12-24 | 1994-03-24 | Hella Kg Hueck & Co | Protecting relay contacts against overloading - using controlled switch with switching path in parallel with contacts and monitoring elements for load current circuit |
DE10020304A1 (en) * | 2000-04-17 | 2001-10-25 | Volkswagen Ag | On-board electrical system has generator and battery each with associated isolating switch, whereby generator and battery can be connected to electrical loads via both switches |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010151393A1 (en) | 2009-06-22 | 2010-12-29 | Motorola, Inc. | Method and apparatus for intrinsically safe operation of a communication device |
US8805455B2 (en) | 2009-06-22 | 2014-08-12 | Motorola Solutions, Inc. | Method and apparatus for intrinsically safe operation of a communication device |
DE102012210600B4 (en) | 2012-06-22 | 2023-03-02 | Robert Bosch Gmbh | Charging and/or disconnecting device for a battery system |
KR101740242B1 (en) | 2015-07-09 | 2017-05-26 | 공주대학교 산학협력단 | Protection circuit module for high voltage level battery pack and energy storage system using the same |
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