DE10231089A1 - Device for selecting power supply in on-board electrical system has first, second energy sources connected to load via diode arrangements configured with greater voltage drop across second than first - Google Patents
Device for selecting power supply in on-board electrical system has first, second energy sources connected to load via diode arrangements configured with greater voltage drop across second than first Download PDFInfo
- Publication number
- DE10231089A1 DE10231089A1 DE2002131089 DE10231089A DE10231089A1 DE 10231089 A1 DE10231089 A1 DE 10231089A1 DE 2002131089 DE2002131089 DE 2002131089 DE 10231089 A DE10231089 A DE 10231089A DE 10231089 A1 DE10231089 A1 DE 10231089A1
- Authority
- DE
- Germany
- Prior art keywords
- diode
- voltage drop
- consumers
- electrical system
- energy sources
- 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
- 238000003491 array Methods 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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
- H02J1/10—Parallel operation of DC sources
- H02J1/108—Parallel operation of DC sources using diodes blocking reverse current flow
-
- 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
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft eine Schaltvorrichtung zur Auswahl einer von mehreren Energiequellen in einem elektrischen Bordnetz gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a switching device for Selection of one of several energy sources in one electrical Vehicle electrical system according to the generic term of Claim 1.
Durch die zunehmende Ausstattung von Fahrzeugen mit sicherheitsrelevanten elektrischen Verbrauchern, wie z.B. Steuergeräten für eine ASR (Antriebsschlupfregelung), elektrohydraulischen Bremsen etc., wird die Stabilität und insbesondere die Ausfallsicherheit elektrische Fahrzeug-Bordnetze immer wichtiger.Due to the increasing equipment of vehicles with safety-relevant electrical consumers, such as. ECUs for one ASR (traction control), electro-hydraulic brakes etc., becomes stability and in particular the reliability of electrical vehicle electrical systems is becoming increasingly important.
Moderne Bordnetze umfassen daher
neben einer Haupt-Energiequelle
(Hauptbatterie) eine redundante Energiequelle (Hilfs- bzw. Stützbatterie),
die bei schwacher oder nicht funktionsfähiger Hauptbatterie zugeschaltet
werden kann, um insbesondere sicherheitsrelevante Verbraucher weiterhin
zu versorgen. Eine aus dem Stand der Technik bekannte Schaltvorrichtung,
mit der zwischen einer Hauptbatterie
Bei Normalbetrieb (die Hauptbatterie
Die Schaltvorrichtung
Bei Ausgabe eines Ausgangssignal
wird ein bistabiles Speicherglied
Bekannte Schalvorrichtungen, wie die dargestellte, sind relativ kompliziert aufgebaut und somit relativ teuer.Known formwork devices, such as those shown are of a relatively complicated structure and are therefore relatively expensive.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine wesentlich einfachere Vorrichtung zur Auswahl einer von mehreren Energiequellen zu schaffen.It is therefore the object of the present invention a much simpler device for selecting one of several To create energy sources.
Gelöst wird diese Aufgabe gemäß der Erfindung durch die im Patentanspruch 1 angegebenen Merkmale. Weitere Ausgestaltungen der Erfindung sind Gegenstand von Unteransprüchen.This object is achieved according to the invention by the features specified in claim 1. Other configurations the invention are the subject of dependent claims.
Der wesentliche Gedanke der Erfindung besteht darin, vollständig auf eine Schaltvorrichtung mit einem aktiven Schalter zu verzichten und statt dessen eine Auswählvorrichtung vorzuschlagen, bei der eine erste Energiequelle über eine erste Diodenanordnung mit einem Verbraucher, und eine zweite Energiequelle über eine zweite Diodenanordnung mit dem Verbraucher verbunden ist, wobei die Diodenanordnungen derart ausgelegt sind, daß der Spannungsabfall über die zweite Diodenanordnung größer ist als derjenige über die erste Diodenanordnung. Eine solche Realisierung ermöglich die Versorgung der Verbraucher aus verschiedenen Energiequellen ohne Verwendung aktiver Schalter.The main idea of the invention is complete to dispense with a switching device with an active switch and instead a selector propose a first energy source via a first diode arrangement with one consumer, and a second energy source over one second diode arrangement is connected to the consumer, wherein the diode arrangements are designed such that the voltage drop across the second diode array is larger than the one over the first diode array. Such an implementation enables the Supplying consumers from different energy sources without Use of active switches.
In einem Kfz-Bordnetz ist eine erste Gruppe von Verbrauchern (Komfortverbraucher) vorzugsweise direkt, und eine zweite Gruppe von Verbrauchern (sicherheitsrelevante Verbraucher) indirekt über die erste Diodenanordnung an der ersten Energiequelle angeschlossen. Die sicherheitsrelevanten Verbraucher sind über die zweite Diodenanordnung mit der zweiten Energiequelle verbunden und werden ohne Umschaltvorgang, d.h. automatisch, von der zweiten Energiequelle versorgt, wenn die Spannung der ersten Energiequelle unter einen vorgegebenen Schwellenwert sinkt.In a vehicle electrical system there is a first one Group of consumers (comfort consumers), preferably directly, and a second group of consumers (security-relevant consumers) indirectly via the first diode arrangement is connected to the first energy source. The safety-relevant consumers are via the second diode arrangement connected to the second energy source and are without switching, i.e. automatically, powered by the second energy source when the Voltage of the first energy source below a predetermined threshold sinks.
Gemäß einer bevorzugten Ausführungsform der Erfindung umfaßt die zweite Diodenanordnung wenigstens zwei Dioden. Die Dioden der ersten und zweiten Diodenanordnung sind vorzugsweise identisch aufgebaut. Somit läßt sich die Auswählvorrichtung in einfacher Weise auch ohne zusätzliche Bauelemente, wie z.B. Widerstände, realisieren.According to a preferred embodiment of the Invention includes the second diode arrangement has at least two diodes. The diodes of the The first and second diode arrangement are preferably constructed identically. So you can the selector in a simple way without additional Components such as resistors, realize.
Die Diodenanordnungen sind vorzugsweise derart realisiert, daß die Differenz des Spannungsabfalls über die erste Diodenanordnung und demjenigen über die zweite Diodenanordnung einen Wert aufweist, der einer Verringerung des Ladezustands der ersten Energiequelle um wenigstens 50% entspricht. Dadurch wird erreicht, daß bei einem Leistungsabfall der ersten Energiequelle um mehr als 50% die Versorgung der sicherheitsrelevanten Verbraucher im wesentlichen durch die zweite Energiequelle erfolgt.The diode arrangements are preferably implemented in such a way that the difference between the voltage drop across the first diode arrangement and that across the second diode arrangement has a value which corresponds to a reduction in the state of charge of the first energy source by at least 50%. It is thereby achieved that in the event of a power drop in the first energy source by more than 50% of the security-relevant consumers are essentially supplied by the second energy source.
Die Erfindung wird nachstehend anhand der beigefügten Zeichnungen beispielhaft näher erläutert. Es zeigen:The invention is illustrated below the attached Exemplary drawings closer explained. Show it:
Bezüglich der Erläuterung
von
Eine erste Gruppe von Verbrauchern,
die hier als ein Verbraucher
Die Auswählvorrichtung
Die in der zweiten Diodenanordnung
Wie erwähnt, ist die Schwelle, ab der
die Energieversorgung von der ersten Batterie
- 11
- Hauptbatteriemain battery
- 22
- Stützbatteriebackup battery
- 33
- Erste DiodenanordnungFirst diode array
- 44
- Zweite DiodenanordnungSecond diode array
- 55
- Schalterswitch
- 66
- Registerregister
- 77
- Komparatorcomparator
- 88th
- Widerstandresistance
- 99
- Widerstandresistance
- 1010
- Widerstandresistance
- 1111
- ZenerdiodeZener diode
- 1212
- Sicherheitsrelevante Verbrauchersafety related consumer
- 1313
- Komfortverbrauchercomfort consumers
- 14–1614-16
- Diodendiodes
- 1717
- Auswählvorrichtungselector
- 1818
- Mikrocontrollermicrocontroller
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002131089 DE10231089A1 (en) | 2002-07-10 | 2002-07-10 | Device for selecting power supply in on-board electrical system has first, second energy sources connected to load via diode arrangements configured with greater voltage drop across second than first |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002131089 DE10231089A1 (en) | 2002-07-10 | 2002-07-10 | Device for selecting power supply in on-board electrical system has first, second energy sources connected to load via diode arrangements configured with greater voltage drop across second than first |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10231089A1 true DE10231089A1 (en) | 2004-01-22 |
Family
ID=29761830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2002131089 Ceased DE10231089A1 (en) | 2002-07-10 | 2002-07-10 | Device for selecting power supply in on-board electrical system has first, second energy sources connected to load via diode arrangements configured with greater voltage drop across second than first |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10231089A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014198378A1 (en) * | 2013-06-12 | 2014-12-18 | Audi Ag | Motor vehicle having two vehicle electrical systems with different vehicle-electrical-system voltages |
| CN104354660A (en) * | 2014-10-24 | 2015-02-18 | 华晨汽车集团控股有限公司 | Electric energy distribution circuit for automobile |
| DE102017203104A1 (en) | 2017-02-27 | 2018-08-30 | Bayerische Motoren Werke Aktiengesellschaft | DC power distribution, system and method for measuring parameters of a motor vehicle |
| DE102006048765B4 (en) | 2006-10-16 | 2022-09-15 | Volkswagen Ag | Device and method for controlling a device for a vehicle |
-
2002
- 2002-07-10 DE DE2002131089 patent/DE10231089A1/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006048765B4 (en) | 2006-10-16 | 2022-09-15 | Volkswagen Ag | Device and method for controlling a device for a vehicle |
| WO2014198378A1 (en) * | 2013-06-12 | 2014-12-18 | Audi Ag | Motor vehicle having two vehicle electrical systems with different vehicle-electrical-system voltages |
| US9845063B2 (en) | 2013-06-12 | 2017-12-19 | Audi Ag | Motor vehicle having two vehicle electrical systems with different vehicle-electrical-system voltages |
| CN104354660A (en) * | 2014-10-24 | 2015-02-18 | 华晨汽车集团控股有限公司 | Electric energy distribution circuit for automobile |
| DE102017203104A1 (en) | 2017-02-27 | 2018-08-30 | Bayerische Motoren Werke Aktiengesellschaft | DC power distribution, system and method for measuring parameters of a motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| R002 | Refusal decision in examination/registration proceedings | ||
| R003 | Refusal decision now final |