DE3742312A1 - Exhaustive discharge protection for the starting batteries of motor vehicles, in particular in passenger cars - Google Patents

Exhaustive discharge protection for the starting batteries of motor vehicles, in particular in passenger cars

Info

Publication number
DE3742312A1
DE3742312A1 DE19873742312 DE3742312A DE3742312A1 DE 3742312 A1 DE3742312 A1 DE 3742312A1 DE 19873742312 DE19873742312 DE 19873742312 DE 3742312 A DE3742312 A DE 3742312A DE 3742312 A1 DE3742312 A1 DE 3742312A1
Authority
DE
Germany
Prior art keywords
electrical system
vehicle
battery
discharge protection
deep discharge
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.)
Withdrawn
Application number
DE19873742312
Other languages
German (de)
Inventor
Juergen Wemhoener
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEMHOENER, JUERGEN, 8014 NEUBIBERG, DE
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19873742312 priority Critical patent/DE3742312A1/en
Publication of DE3742312A1 publication Critical patent/DE3742312A1/en
Withdrawn legal-status Critical Current

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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/002—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which a reserve is maintained in an energy source by disconnecting non-critical loads, e.g. maintaining a reserve of charge in a vehicle battery for starting an engine
    • 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

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Discharging of the starting battery by the vehicle's electrical system after the vehicle has been switched off by loads which have been left switched on inadvertently is unavoidable according to the prior art. Despite various warning devices which can be installed as part of series equipment or retrofitted total failure of starting batteries or premature ageing thereof occurs repeatedly. The problem cannot be overcome with warning devices alone. Therefore, the objective must be to provide a protection device for starting batteries which reliably prevents exhaustive discharges by the vehicle's electrical system. The technical object is achieved in that, after the ignition key is withdrawn, the battery voltage is continuously monitored by a new circuit (Fig. 2). If the battery voltage drops below an adjustable limit value, the entire electrical system of the vehicle is disconnected by a bistable relay. The area of application comprises all passenger cars and delivery vans or such motor vehicles which are equipped with a combined starter/electrical system battery. <IMAGE>

Description

In Personenkraftwagen hat die Startbatterie gleichzeitig die Funktion als Bordnetzbatterie zu übernehmen. Dies birgt die Gefahr in sich, daß nach abgestelltem Fahrzeug durch bewußt oder unbewußt eingeschaltet belassene Verbraucher wie Be­ leuchtung oder Zusatzgeräte die Startbatterie tiefentladen wird. Der nächste Fehlstart ist hierdurch vorprogrammiert. Für die Praxis bedeutet dies ein erhebliches Betriebssicher­ heitsrisiko, wie es durch liegengebliebene oder abgeschlepp­ te Fahrzeuge mannigfach belegt ist.The starter battery in passenger cars has the same Take over the function as an on-board electrical system battery. This holds the Danger in itself that after parking the vehicle through conscious or consumers left unconsciously switched on like Be lighting or additional devices, deep discharge the starter battery becomes. The next false start is pre-programmed. In practice, this means considerable operational reliability security risk, such as that caused by broken down or towed vehicles are fully occupied.

Aus der Sicht der Fahrpraxis ist festzustellen, daß der Start­ batterie in ihrer Funktion als Starthilfe Vorrang gegenüber der Bordnetzversorgung zu geben ist. Demzufolge sind Schutz­ maßnahmen notwendig, die ein Tiefentladen durch das Bordnetz zuverlässig verhindern.From the point of view of driving experience it should be noted that the start battery in its function as a jump start over priority is to be given to the electrical system supply. Hence protection Measures necessary that deep discharge through the electrical system reliably prevent.

Es sind zahlreiche Verfahren bekannt, die den Fahrer optisch oder akustisch an versehentlich eingeschaltet belassene Bord­ netzverbraucher erinnern sollen. Hierzu wurden folgende Pa­ tentschriften ermittelt:Numerous methods are known that visually inspect the driver or acoustically to a board that was accidentally left on to remind network consumers. The following pa tent fonts determined:

DE 26 05 114 C2, DE 30 17 277 C2, DE 29 40 283 C2, DE 21 64 553 C3, DE 28 46 751 B2, DE 27 08 711 B2, DE 26 49 348 B2.DE 26 05 114 C2, DE 30 17 277 C2, DE 29 40 283 C2, DE 21 64 553 C3, DE 28 46 751 B2, DE 27 08 711 B2, DE 26 49 348 B2.

Alle Verfahren dienen demselben Ziel, Tiefentladungen der Startbatterie durch das Bordnetz zu verhindern. Diese Verfah­ ren, durchweg als Warneinrichtungen bezeichnet, sind zwar als nützliche Zusatzeinrichtungen zu bewerten, bieten jedoch nur begrenzten Schutz, da ihre Wirkung effektiv von der Aufmerk­ samkeit des Fahrers abhängt. Außerdem erfassen diese Warn­ einrichtungen jeweils nur einen Stromkreis. Mit zunehmender Anzahl der zu überwachenden Stromkreise müssen unterschied­ liche akustische und optische Signale erzeugt werden. Auch hierzu sind Verfahren bekannt, die jedoch der Übersicht und Wirtschaftlichkeit entgegenwirken.All processes serve the same goal, deep discharges To prevent the starting battery from being connected to the vehicle electrical system. This procedure ren, consistently referred to as warning devices, are as To evaluate useful additional facilities, however, only offer limited protection, since its effect is effective from the attention  driver's dependability. They also capture warnings facilities only one circuit at a time. With increasing The number of circuits to be monitored must differ Liche acoustic and optical signals are generated. Also methods are known for this purpose, but the overview and Counter economy.

Zusammenfassend ist festzustellen, daß Warneinrichtungen allein Tiefentladungen der Startbatterie aus dem Bordnetz nicht verhindern können.In summary, it should be noted that warning devices only deep discharges of the starter battery from the vehicle electrical system cannot prevent.

Erfindungsgemäß liegt deshalb die Aufgabe zugrunde, ein neues umfassendes Schutzsystem für Pkw- Startbatterien zu schaffen, welches folgende praxisorientier­ te Bedingungen erfüllt:According to the invention, therefore Task based on a new comprehensive protection system for passenger car To create starter batteries, which is the following practice-oriented conditions met:

Uneingeschränkte Benutzbarkeit aller nach abgezogenem Zünd­ schlüssel einschaltbarer Bordnetzverbraucher und Zusatzgerä­ te wie z. B. Funkanlage, Autotelefon (Fig. 1).Unrestricted usability of all on-board electrical system consumers and additional devices such as B. radio, car phone ( Fig. 1).

Alle wesentlich eingeschaltet belassene Verbraucher dür­ fen nicht zur Tiefentladung der Startbatterie führen.All consumers left essentially switched on may Do not lead to deep discharge of the starter battery.

Sicherstellung von stets ausreichender Startenergie durch ex­ akt definierte Begrenzung der Stromentnahme.Ensuring sufficient starting energy at all times through ex Current defined limitation of the current draw.

Die Aufgabe wird dadurch gelöst, daß nach abgezogenem Zünd­ schlüssel automatisch eine Batteriespannungsmessung aktiviert wird. Bei Unterschreitung einer gewissen Spannungsgrenze wird das gesamte Bordnetz über ein Lastrelais abgetrennt (Fig. 1). Der Abschaltpunkt ist so gewählt, daß einerseits eine mög­ lichst lange Stromentnahme durch das Bordnetz gegeben ist, andererseits für den nächsten Start noch ausreichende Ener­ giereserven sichergestellt sind. Den praktischen Erforder­ nissen nach unbedenklichem Bordnetzverbrauch bei gleichzei­ tiger Sicherstellung ausreichender Startenergie wird hier­ durch voll entsprochen.The object is achieved in that a battery voltage measurement is automatically activated after the ignition key has been removed. If the voltage falls below a certain limit, the entire on-board electrical system is disconnected via a load relay ( Fig. 1). The switch-off point is selected so that on the one hand the longest possible current drain through the vehicle electrical system is given, on the other hand sufficient energy reserves are ensured for the next start. The practical requirements for safe on-board electrical system consumption while ensuring sufficient starting energy are fully met here.

Zur Lösung der gestellten Aufgabe ist eine spezielle Schal­ tung erforderlich, die in einem Ausführungsbeispiel folgend näher beschrieben wird (Fig. 2).To solve the task, a special scarf device is required, which is described in more detail in an embodiment below ( Fig. 2).

Nach erfolgtem Start und Erreichen der Nenndrehzahl der Licht­ maschine wird Relais K 1 erregt. Über seinen Arbeitskontakt und die RC-Kombination R 9/C 1 erhält das bistabile Kipprelais K 2 seinen Einschaltwischimpuls. Das Bordnetz ist hiermit an die Stromversorgung angekoppelt (Fahrbetrieb). Nach ab­ gezogenem Zündschlüssel verbleibt Relais K 2 zunächst in seiner Fahrbetrieb-Stellung. Relais K 1 fällt ab und akti­ viert über einen Ruhekontakt die Batteriespannungsmessung. Der als Komparator geschaltete Verstärker V 1 vergleicht nun fortlaufend die Batteriespannung (Istspannung) mit der durch R 1 einstellbaren Sollspannung (Abschaltpunkt). Der Abschaltpunkt sollte im Interesse hoher Startreserve nicht tiefer als 1,7 V/Zelle eingestellt werden. Wird der Sollwert bzw. Abschaltpunkt durch die Batteriespannung unterschrit­ ten, gibt V 1 einen negativen Spannungsimpuls ab. Durch die unsymmetrische Spannungsversorgung von V 1 verbleibt am Aus­ gang eine Restspannung. Diese wird von der Zenerdiode Z 1 unterdrückt. Der Transistor T 1 invertiert seinen Steuerim­ puls und koppelt ihn über Transistor T 2 aus. Das Lastrelais K 2 kippt nun in seine zweite stabile Lage und trennt das Bordnetz über seinen Kontakt ab. Erst beim nächsten Start, wenn die Lichtmaschine Nenndrehzahl erreicht hat, kippt Re­ lais K 2 wieder in seine Normal- bzw. Fahrbetriebstellung. Das Lastrelais K 2 ist bewußt als bistabiles Kipprelais ge­ wählt, um den bei normalen Lastrelais erforderlichen Hal­ testrom zu vermeiden. Der Strom während der Batteriespan­ nungs-Meßphase liegt im Ausführungsbeispiel bei 25 mA.After successful start and reaching the nominal speed of the alternator, relay K 1 is energized. The bistable toggle relay K 2 receives its wiping pulse via its make contact and the RC combination R 9 / C 1 . The vehicle electrical system is hereby coupled to the power supply (driving operation). After the ignition key has been removed, relay K 2 initially remains in its driving position. Relay K 1 drops out and activates the battery voltage measurement via a normally closed contact. The amplifier V 1 connected as a comparator now continuously compares the battery voltage (actual voltage) with the target voltage that can be set by R 1 (switch-off point). In the interest of a high starting reserve, the switch-off point should not be set lower than 1.7 V / cell. If the setpoint or switch-off point is undercut by the battery voltage, V 1 emits a negative voltage pulse. Due to the unbalanced voltage supply of V 1 , a residual voltage remains at the output. This is suppressed by the Zener diode Z 1 . The transistor T 1 inverts its Steuerim pulse and couples it out via transistor T 2 . The K 2 load relay now tips into its second stable position and disconnects the vehicle electrical system via its contact. Only at the next start, when the alternator has reached the nominal speed, does relay K 2 switch back to its normal or driving position. The load relay K 2 is deliberately chosen as a bistable flip-flop relay to avoid the current required for normal load relays. The current during the battery voltage measurement phase is 25 mA in the exemplary embodiment.

Claims (4)

1. Tiefentladeschutz für Kfz-Startbatterien, insbesondere bei Personenkraftwagen, dadurch gekennzeichnet, daß nach abgezogenem Zündschlüssel eine Tiefentladung der Startbatterie durch versehentlich oder bewußt eingeschaltet belassene Bordnetzverbraucher zu­ verlässig verhindert ist.1. Deep discharge protection for motor vehicle starter batteries, particularly in passenger cars, characterized in that after the ignition key has been removed, a deep discharge of the starter battery is prevented reliably by on-board power supply consumers left on accidentally or deliberately. 2. Tiefentladeschutz nach Anspruch 1, dadurch gekennzeichnet, daß eine neue Schaltung (Fig. 2) die Entladung der Startbatterie durch Bordnetzverbraucher der­ art begrenzt, daß stets eine ausreichende Startenergie si­ chergestellt ist.2. Deep discharge protection according to claim 1, characterized in that a new circuit ( Fig. 2) limits the discharge of the starter battery by electrical system consumers of the kind that sufficient starting energy is always ensured. 3. Tiefentladeschutz nach Anspruch 2, dadurch gekennzeichnet, daß die neue Schaltung jeweils nach abgezogenem Zündschlüssel die Startbatterie auf ihren Span­ nungswert überwacht, das Bordnetz bei Unterschreitung einer einstellbaren Spannungsgrenze über ein bistabiles Kippre­ lais von der Startbatterie abtrennt und erst beim nächsten Start bei Nenndrehzahl der Lichtmaschine wieder zuschaltet.3. deep discharge protection according to claim 2, characterized in that the new circuit after each removed ignition key the starter battery on their chip monitored value, the vehicle electrical system when falling below a adjustable voltage limit via a bistable flip-flop disconnect the relay from the starter battery and only at the next one Start at the nominal speed of the alternator again. 4. Tiefentladeschutz nach Anspruch 3, dadurch gekennzeichnet, daß die Schaltung in der Meßphase einen Strom von 30 mA aufnimmt.4. deep discharge protection according to claim 3, characterized in that the circuit in the measuring phase draws a current of 30 mA.
DE19873742312 1987-12-14 1987-12-14 Exhaustive discharge protection for the starting batteries of motor vehicles, in particular in passenger cars Withdrawn DE3742312A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873742312 DE3742312A1 (en) 1987-12-14 1987-12-14 Exhaustive discharge protection for the starting batteries of motor vehicles, in particular in passenger cars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873742312 DE3742312A1 (en) 1987-12-14 1987-12-14 Exhaustive discharge protection for the starting batteries of motor vehicles, in particular in passenger cars

Publications (1)

Publication Number Publication Date
DE3742312A1 true DE3742312A1 (en) 1989-06-22

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Application Number Title Priority Date Filing Date
DE19873742312 Withdrawn DE3742312A1 (en) 1987-12-14 1987-12-14 Exhaustive discharge protection for the starting batteries of motor vehicles, in particular in passenger cars

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310284A2 (en) * 1987-09-29 1989-04-05 Kabushiki Kaisha Toshiba Automobile telephone device
DE3841769C1 (en) * 1988-12-12 1990-06-07 Juergen 8014 Neubiberg De Wemhoener Circuit for ensuring the provision of starting energy in motor vehicles with internal combustion engines
DE4101614A1 (en) * 1990-06-21 1992-01-09 Pioneer Electronic Corp BATTERY PROTECTION DEVICE IN AN AUTOSTEREO SYSTEM
DE4040405A1 (en) * 1990-12-17 1992-07-02 Daimler Benz Ag Vehicle battery discharge prevention circuit - uses interlocking relays and external master switch to cut off current supplied to loads when vehicle is locked
DE4217650C1 (en) * 1992-05-28 1993-07-15 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE4207155A1 (en) * 1992-03-06 1993-09-16 Bayerische Motoren Werke Ag Current-saving central locking circuit for motor vehicle doors - carries out selective isolation of electrical loads subject to signals from door lock irrespective of battery condition
EP0636520A1 (en) * 1993-07-29 1995-02-01 FIAT AUTO S.p.A. An electronic protection device to counter excessive battery discharge while a motor vehicle is stationary
DE4337273A1 (en) * 1993-11-02 1995-05-04 Bayerische Motoren Werke Ag Circuit arrangement for reducing the closed-circuit current in parked motor vehicles
DE4337274A1 (en) * 1993-11-02 1995-05-04 Bayerische Motoren Werke Ag Switching arrangement for reducing the quiescent current consumption when the motor vehicles are parked
WO1999050097A1 (en) * 1998-03-27 1999-10-07 Smartswitch Limited Battery management device for a motor vehicle
DE10037958A1 (en) * 2000-07-27 2002-02-07 Volkswagen Ag Unit for preventing deep-discharge of vehicle battery, has sensing circuit and switch disconnecting inessential consumers when battery voltage dips sufficiently
DE10056795A1 (en) * 2000-11-13 2002-05-23 Volkswagen Ag Circuit for preventing deep discharge of battery in motor vehicle on-board electrical system has charge state detector automatically decoupled from battery after opening isolating element
EP1213816A2 (en) * 2000-12-07 2002-06-12 Delphi Technologies, Inc. Discharge protection device
EP1231696A2 (en) 2001-02-10 2002-08-14 Audi Ag Device and method forfor reducing the static current consumption in a parked motor vehicle
DE102005018434A1 (en) * 2005-04-21 2006-10-26 Continental Aktiengesellschaft Motor vehicle with a pneumatic level control system
DE102007045899A1 (en) 2007-09-26 2009-04-09 Volkswagen Ag Discharge protection device for use in vehicle i.e. car, battery, has control device with detection device for detecting indication parameter that indicates that engine is stopped and component is switched-off by changing value
EP2097916A1 (en) * 2006-12-22 2009-09-09 Scania CV AB (publ) Method and system at a vehicle
DE102008037190A1 (en) * 2008-08-11 2010-02-18 Behr Gmbh & Co. Kg Power supply device for standstill air-conditioning device in e.g. lorry, has electrical energy stores switched into two permanent operating conditions and serially and parallely connected in respective continuous operating conditions
DE102011087488A1 (en) * 2011-11-30 2013-06-06 Bayerische Motoren Werke Aktiengesellschaft Circuit arrangement and method for avoiding deep discharges of an energy storage in a motor vehicle electrical system
DE10155003B4 (en) * 2000-11-13 2014-01-16 Volkswagen Ag Device for avoiding the deep discharge of a battery in a motor vehicle electrical system
DE102015012527A1 (en) 2015-09-26 2016-04-14 Daimler Ag Method for monitoring a state of charge of a high-voltage battery and device
DE102016215997A1 (en) 2016-08-25 2018-03-01 Airbus Defence and Space GmbH High voltage battery and method of operation
DE102018131746A1 (en) * 2018-12-11 2020-06-18 Bayerische Motoren Werke Aktiengesellschaft Switching arrangement for adapting the load current

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310284A2 (en) * 1987-09-29 1989-04-05 Kabushiki Kaisha Toshiba Automobile telephone device
EP0310284A3 (en) * 1987-09-29 1990-06-13 Kabushiki Kaisha Toshiba Automobile telephone device
DE3841769C1 (en) * 1988-12-12 1990-06-07 Juergen 8014 Neubiberg De Wemhoener Circuit for ensuring the provision of starting energy in motor vehicles with internal combustion engines
DE4101614A1 (en) * 1990-06-21 1992-01-09 Pioneer Electronic Corp BATTERY PROTECTION DEVICE IN AN AUTOSTEREO SYSTEM
DE4040405A1 (en) * 1990-12-17 1992-07-02 Daimler Benz Ag Vehicle battery discharge prevention circuit - uses interlocking relays and external master switch to cut off current supplied to loads when vehicle is locked
DE4207155A1 (en) * 1992-03-06 1993-09-16 Bayerische Motoren Werke Ag Current-saving central locking circuit for motor vehicle doors - carries out selective isolation of electrical loads subject to signals from door lock irrespective of battery condition
DE4217650C1 (en) * 1992-05-28 1993-07-15 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
EP0636520A1 (en) * 1993-07-29 1995-02-01 FIAT AUTO S.p.A. An electronic protection device to counter excessive battery discharge while a motor vehicle is stationary
DE4337273A1 (en) * 1993-11-02 1995-05-04 Bayerische Motoren Werke Ag Circuit arrangement for reducing the closed-circuit current in parked motor vehicles
DE4337274A1 (en) * 1993-11-02 1995-05-04 Bayerische Motoren Werke Ag Switching arrangement for reducing the quiescent current consumption when the motor vehicles are parked
US5576686A (en) * 1993-11-02 1996-11-19 Bayerische Motoren Werke Ag Switch arrangement for reducing the closed circuit current when motor vehicles are parked
DE4337273C2 (en) * 1993-11-02 1998-08-06 Bayerische Motoren Werke Ag Switching arrangement for reducing the quiescent current when the motor vehicles are parked
WO1999050097A1 (en) * 1998-03-27 1999-10-07 Smartswitch Limited Battery management device for a motor vehicle
GB2350499A (en) * 1998-03-27 2000-11-29 Smartswitch Ltd Battery management device for a motor vehicle
GB2350499B (en) * 1998-03-27 2001-08-08 Smartswitch Ltd Battery management device for a motor vehicle
DE10037958A1 (en) * 2000-07-27 2002-02-07 Volkswagen Ag Unit for preventing deep-discharge of vehicle battery, has sensing circuit and switch disconnecting inessential consumers when battery voltage dips sufficiently
DE10056795A1 (en) * 2000-11-13 2002-05-23 Volkswagen Ag Circuit for preventing deep discharge of battery in motor vehicle on-board electrical system has charge state detector automatically decoupled from battery after opening isolating element
DE10155003B4 (en) * 2000-11-13 2014-01-16 Volkswagen Ag Device for avoiding the deep discharge of a battery in a motor vehicle electrical system
DE10060873A1 (en) * 2000-12-07 2002-06-13 Delphi Tech Inc Entladeschutzvorrichtung
EP1213816A2 (en) * 2000-12-07 2002-06-12 Delphi Technologies, Inc. Discharge protection device
EP1213816A3 (en) * 2000-12-07 2005-12-07 Delphi Technologies, Inc. Discharge protection device
DE10106239A1 (en) * 2001-02-10 2002-09-19 Audi Ag Device and method for reducing the quiescent current consumption in a parked vehicle
DE10106239C2 (en) * 2001-02-10 2003-08-28 Audi Ag Device and method for reducing the quiescent current consumption in a parked vehicle
EP1231696A3 (en) * 2001-02-10 2005-10-05 Audi Ag Device and method forfor reducing the static current consumption in a parked motor vehicle
EP1231696A2 (en) 2001-02-10 2002-08-14 Audi Ag Device and method forfor reducing the static current consumption in a parked motor vehicle
DE102005018434A1 (en) * 2005-04-21 2006-10-26 Continental Aktiengesellschaft Motor vehicle with a pneumatic level control system
EP2097916A1 (en) * 2006-12-22 2009-09-09 Scania CV AB (publ) Method and system at a vehicle
EP2097916A4 (en) * 2006-12-22 2011-02-02 Scania Cv Abp Method and system at a vehicle
DE102007045899A1 (en) 2007-09-26 2009-04-09 Volkswagen Ag Discharge protection device for use in vehicle i.e. car, battery, has control device with detection device for detecting indication parameter that indicates that engine is stopped and component is switched-off by changing value
DE102008037190A1 (en) * 2008-08-11 2010-02-18 Behr Gmbh & Co. Kg Power supply device for standstill air-conditioning device in e.g. lorry, has electrical energy stores switched into two permanent operating conditions and serially and parallely connected in respective continuous operating conditions
DE102008037190B4 (en) * 2008-08-11 2019-01-31 Mahle International Gmbh Energy supply device, motor vehicle and method for supplying such a motor vehicle
DE102011087488A1 (en) * 2011-11-30 2013-06-06 Bayerische Motoren Werke Aktiengesellschaft Circuit arrangement and method for avoiding deep discharges of an energy storage in a motor vehicle electrical system
DE102015012527A1 (en) 2015-09-26 2016-04-14 Daimler Ag Method for monitoring a state of charge of a high-voltage battery and device
DE102016215997A1 (en) 2016-08-25 2018-03-01 Airbus Defence and Space GmbH High voltage battery and method of operation
DE102016215997B4 (en) * 2016-08-25 2019-06-27 Airbus Defence and Space GmbH High voltage battery and method of operation
DE102018131746A1 (en) * 2018-12-11 2020-06-18 Bayerische Motoren Werke Aktiengesellschaft Switching arrangement for adapting the load current

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8127 New person/name/address of the applicant

Owner name: WEMHOENER, JUERGEN, 8014 NEUBIBERG, DE

8139 Disposal/non-payment of the annual fee