EP1396064A1 - Commutateur de securite servant a eviter la decharge involontaire de la batterie d'un vehicule - Google Patents

Commutateur de securite servant a eviter la decharge involontaire de la batterie d'un vehicule

Info

Publication number
EP1396064A1
EP1396064A1 EP02735136A EP02735136A EP1396064A1 EP 1396064 A1 EP1396064 A1 EP 1396064A1 EP 02735136 A EP02735136 A EP 02735136A EP 02735136 A EP02735136 A EP 02735136A EP 1396064 A1 EP1396064 A1 EP 1396064A1
Authority
EP
European Patent Office
Prior art keywords
safety switch
vehicle
battery
semiconductor
vehicle battery
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
Application number
EP02735136A
Other languages
German (de)
English (en)
Inventor
Armin Wagner
Oliver FRÖLICH
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1396064A1 publication Critical patent/EP1396064A1/fr
Ceased 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • 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

Definitions

  • the invention relates to a safety switch for preventing unintentional vehicle battery discharge, for example by external electrical consumers, which are connected to a vehicle socket, such as the socket for the cigarette lighter.
  • US-A-3 395 288 proposes the use of a Zener diode as a switch. However, because of their high power consumption, Zener diodes are also unsuitable for such safety switches.
  • the invention has for its object to provide an improved safety switch to prevent accidental battery discharge. This object is achieved with the features of the claims.
  • the invention is based on the basic idea of using a semiconductor switch as a safety switch which, for example, depending on the elapsed time after the ignition has been switched off or on the current state of charge of the battery, disconnects the vehicle sockets from the vehicle battery.
  • the use of a semiconductor switch is associated with the particular advantage that the semiconductor safety switch according to the invention does not require any quiescent current due to its powerless activation even when it is switched on.
  • Another advantage of the safety switch according to the invention is that the preparation of the relay, which is necessary, for example, for Australia can be omitted in all vehicles. The requirement existing in Australia to disconnect the socket for the cigarette lighter from the power supply via the ignition is then met when using the safety switch according to the invention by programming the electronic control device controlling the safety switch during or after production of the vehicle.
  • the semiconductor safety switch according to the invention is individually programmed for the corresponding The control unit of the vehicle is set to a permanent voltage supply even after the ignition has been switched off (for example for connecting a refrigerator for medication).
  • the preferred embodiment of the responsibility for monitoring the battery status passes to the driver, this rare individual need can be solved with one and the same Safety switches are met, which prevents accidental discharge of the battery in conventional use according to the invention.
  • the use of the semiconductor safety switch according to the invention is associated with the advantage that the same hardware is suitable and adaptable for different needs and such special cases are not already in use Production of the vehicle must be taken into account (for example by installing other hardware components), but also subsequently by reprogramming the control unit for the semiconductor Sic safety switch can be satisfied
  • the semiconductor safety switch according to the invention is used to monitor the fault of the vehicle socket.
  • the current draw via the semiconductor is monitored via the semiconductor, for example by means of a SenseFET semiconductor.
  • the current draw is either too high if, for example, the refrigerator is too large Vehicle socket is connected, or if power is drawn for too long, the semiconductor is controlled accordingly and thus the power supply to the socket is interrupted.
  • the safety switch according to the invention serves to charge the battery of the vehicle, for example via the cigarette lighter, or to maintain the existing charge.
  • a semiconductor switch is used which works with reverse polarity with little polarity reversal.
  • This possibility of external charging of the vehicle battery is, for example In showrooms or at auto shows, this is an advantage if electrical consumers are permanently in operation for a long time (e.g. lighting) or are constantly operated by the public (e.g. power windows, electric seat adjustment, etc.)
  • Semiconductor safety switches allow recharging or trickle charging of the battery in a simple and discreet manner, without a charger having to be connected directly to the terminals of the vehicle battery.
  • Conventional safety switches do not allow such bidirectional current flow (ie current consumption by connected consumers, on the one hand, and charging current, on the other hand).
  • the charging function is activated from the outside via a serial interface of the vehicle, the so-called diagnostic connector the electronic control device controlling the semiconductor switch is reprogrammed accordingly or the "charging" function is activated.
  • there is automatic detection If, for example, there is a voltage at the output of the semiconductor safety switch or the battery that exceeds a predetermined threshold value, the safety switch switches through and allows a current to flow in the opposite direction and thus to charge the battery.
  • the charging function is activated via an additional switch.
  • various alternatives are also provided for ending the “charging” state.
  • Switching according to a first alternative takes place when a certain voltage threshold at the output of the switch or the battery is undershot again.
  • the switching takes place when a certain state of charge is undershot (ie the charger has been removed) or exceeded (ie the battery is full).
  • switching takes place after a predetermined period of time.
  • the additional switch is again in the “OFF” position brought. Finally, there is a switchover if no charging current is detected in the battery.

Landscapes

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

Abstract

L'invention concerne un commutateur de sécurité servant à éviter que la batterie d'un véhicule ne se décharge involontairement, par exemple à cause de consommateurs électriques externes reliés à une prise de courant dans le véhicule, tels que la prise de l'allume-cigares. Selon l'invention, un commutateur statique est utilisé comme commutateur de sécurité, ce commutateur séparant les prises de courant du véhicule de la batterie, par exemple, en fonction du temps écoulé après arrêt de l'allumage ou bien en fonction de l'état de charge momentané de la batterie.
EP02735136A 2001-06-09 2002-03-16 Commutateur de securite servant a eviter la decharge involontaire de la batterie d'un vehicule Ceased EP1396064A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10128136 2001-06-09
DE10128136A DE10128136A1 (de) 2001-06-09 2001-06-09 Sicherheitsschalter zum Verhindern einer unbeabsichtigten Fahrzeugbatterie-Entladung
PCT/EP2002/002946 WO2002101903A1 (fr) 2001-06-09 2002-03-16 Commutateur de securite servant a eviter la decharge involontaire de la batterie d'un vehicule

Publications (1)

Publication Number Publication Date
EP1396064A1 true EP1396064A1 (fr) 2004-03-10

Family

ID=7687820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02735136A Ceased EP1396064A1 (fr) 2001-06-09 2002-03-16 Commutateur de securite servant a eviter la decharge involontaire de la batterie d'un vehicule

Country Status (4)

Country Link
US (1) US7129598B2 (fr)
EP (1) EP1396064A1 (fr)
DE (1) DE10128136A1 (fr)
WO (1) WO2002101903A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524749A3 (fr) * 2003-10-14 2007-05-16 KIM, Sunchae Controleur d'alimentation de puissance électrique d'un dispositif électronique alimenté avec puissance électrique à partir d'une battérie de véhicule
JP4479768B2 (ja) * 2007-09-10 2010-06-09 トヨタ自動車株式会社 自動車および自動車の充電方法
DE102007045899A1 (de) 2007-09-26 2009-04-09 Volkswagen Ag Entladeschutzvorrichtung und Verfahren zum Verhindern der Entladung einer Fahrzeugbatterie
US20090201145A1 (en) * 2008-02-06 2009-08-13 Hector Mario Vasquez Safety socket
US8188704B2 (en) * 2009-04-28 2012-05-29 At&T Intellectual Property I, L. P. Methods, systems and products for managing energy consumption
DE102012205161A1 (de) * 2011-03-29 2012-10-04 Continental Teves Ag & Co. Ohg Stromsensor
DE102012218503A1 (de) * 2012-10-11 2014-04-17 Bayerische Motoren Werke Aktiengesellschaft Bordspannungssteckdose
US9008907B2 (en) 2013-05-31 2015-04-14 Hugh D Copeland Intelligent vehicle power control system and method
US9643548B2 (en) * 2013-06-05 2017-05-09 Honda Motor Co., Ltd. System and method for detecting and providing power to an accessory in a vehicle
US9651280B2 (en) * 2014-08-19 2017-05-16 Christian G. Hill Energy attachment for a helmet
DE102015002357A1 (de) 2015-02-25 2016-08-25 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Kraftfahrzeug-Bordnetz und Batteriebaugruppe dafür
US10168364B2 (en) 2016-11-29 2019-01-01 Wipro Limited Battery monitoring system for a vehicle and a method thereof
US10343538B2 (en) * 2017-04-06 2019-07-09 Ford Global Technologies, Llc Controlling charge levels of vehicle batteries based on battery charge states and vehicle operating modes

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US4218717A (en) * 1978-08-21 1980-08-19 Harry Shuster Electric control system for motor vehicle
US5332958A (en) * 1986-12-12 1994-07-26 Sloan Jeffrey M Battery disconnect device
GB8821167D0 (en) * 1988-09-09 1988-10-12 Jaguar Cars Electrical supply control system for motor vehicle
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
JPH03248941A (ja) * 1990-02-27 1991-11-06 Aisin Seiki Co Ltd 車載用無線機器の給電装置
US5200877A (en) * 1990-04-04 1993-04-06 Baton Labs, Inc. Battery protection system
US5272386A (en) * 1992-02-14 1993-12-21 Kephart David A Programmable timer power switch unit with emergency override reset
DE4241012A1 (de) * 1992-12-05 1994-06-09 Blaupunkt Werke Gmbh Anordnung zum automatischen Abschalten eines in einem Kfz betriebenen Autoradio
DE19548612B4 (de) * 1995-12-23 2005-10-06 Robert Bosch Gmbh Mehrkreisiges Fahrzeugbordnetz mit einem elektronischen Analogschalter
DE29607780U1 (de) * 1996-04-30 1996-06-13 Trautmann Kg Calira Apparateba Schaltung zum Schutz einer Batterie vor Tiefentladung
DE19706946C2 (de) * 1997-02-21 2000-06-21 Daimler Chrysler Ag Battierüberwachungseinheit
DE29907587U1 (de) * 1999-04-29 1999-09-23 Riedl Heinrich Automatische Abschaltung und Meldung von Stromverbrauchern in Kfz
DE19957477A1 (de) * 1999-11-23 2001-05-31 Volkswagen Ag Kraftfahrzeug-Bordnetz
US6646845B1 (en) * 2000-09-21 2003-11-11 Delphi Technologies, Inc. Battery protection system and method

Non-Patent Citations (1)

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Title
See references of WO02101903A1 *

Also Published As

Publication number Publication date
US7129598B2 (en) 2006-10-31
US20040169419A1 (en) 2004-09-02
DE10128136A1 (de) 2002-12-12
WO2002101903A1 (fr) 2002-12-19

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