SE512521C2 - Electricity supply system intended for heating an exhaust catalytic converter - Google Patents

Electricity supply system intended for heating an exhaust catalytic converter

Info

Publication number
SE512521C2
SE512521C2 SE9100444A SE9100444A SE512521C2 SE 512521 C2 SE512521 C2 SE 512521C2 SE 9100444 A SE9100444 A SE 9100444A SE 9100444 A SE9100444 A SE 9100444A SE 512521 C2 SE512521 C2 SE 512521C2
Authority
SE
Sweden
Prior art keywords
accumulator
generator
supply system
power supply
battery
Prior art date
Application number
SE9100444A
Other languages
Swedish (sv)
Other versions
SE9100444D0 (en
SE9100444L (en
Inventor
Urban Kristiansson
Bertil Kry
Zvonko Mlakar
Original Assignee
Volvo Ab
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 Volvo Ab filed Critical Volvo Ab
Priority to SE9100444A priority Critical patent/SE512521C2/en
Publication of SE9100444D0 publication Critical patent/SE9100444D0/en
Priority to PCT/SE1992/000084 priority patent/WO1992014631A1/en
Publication of SE9100444L publication Critical patent/SE9100444L/en
Publication of SE512521C2 publication Critical patent/SE512521C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • 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
    • 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
    • H02J7/1438—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 in combination with power supplies for loads other than 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
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • 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
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Control Of Eletrric Generators (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Control Of Charge By Means Of Generators (AREA)

Abstract

An electrical supply system for a vehicle having a combustion engine. The system comprises a generator (16) and a battery accumulator (10) for respectively generating and storing of electricity together with at least one intermittently-working major load (24) for the electricity. Additionally included is a second battery accumulator (25) placed next to the major load (24) and a switching arrangement (29) which allows the connection of the major load (24) to said second battery accumulator.

Description

W 10 15 20 25 30 5'!2 521 2 ten, så att övriga elförbrukare måste konkurrera om startbatteriets kvarvarande effekt. Det föreligger således uppenbara risker för funktionsstörningar vid extrema användningsförhállanden. W 10 15 20 25 30 5 '! 2 521 2 ten, so that other electricity consumers must compete for the remaining power of the starter battery. There are thus obvious risks of malfunctions in extreme conditions of use.

Det intermittenta effektbehov som skapas av katalysator- uppvärmningen kan kompenseras genom uppgradering av fordonets generator och/eller batteríaccumulator. En tillräckligt stor generator kommer dock att belasta fordonets motor svårt under tomgång, vilket kan leda till att motorn stannar. Dessutom ökar de miljöskadliga emis- sionerna från motorn just under uppvärmningen av motorn, tvärt emot avsikten med användningen av katalysatorns uppvärmningsanordning. Med ett uppgraderat batteri är risken för funktionsstörningar ändå närvarande, eftersom en onorralt låg batteríeffekt kan uppstå genom användning av parkeringsljus och andra elförbrukande organ då motorn inte är igång.The intermittent power demand created by the catalyst heating can be compensated by upgrading the vehicle's generator and / or battery accumulator. However, a sufficiently large generator will load the vehicle's engine at idle, which may cause the engine to stop. In addition, the environmentally harmful emissions from the engine increase just during the heating of the engine, contrary to the intention of using the catalyst heater. With an upgraded battery, the risk of malfunctions is still present, as an abnormally low battery power can occur through the use of parking lights and other electricity-consuming means when the engine is not running.

TEKNISKA PROBLEMET Ett ändamål med uppfinningen är därför att åstadkomma ett elförbrukningssystem för fordon, vilket system klarar att intermittent utsättas för en stor förbrukning.TECHNICAL PROBLEM An object of the invention is therefore to provide an electricity consumption system for vehicles, which system is able to be intermittently exposed to a large consumption.

LÖSNINGEN Detta ändamål uppnås enligt uppfinningen, genom att elförsörjningssystemet omfattar en andra, invid storför- brukaren placerad batteríaccumulator och en omkopplings- anordning som möjlíggör anslutning av storförbrukaren till nämnda andra batteríaccumulator.THE SOLUTION This object is achieved according to the invention, in that the electricity supply system comprises a second battery accumulator located next to the large consumer and a switching device which enables the large consumer to be connected to said second battery accumulator.

FÖRDELAR Genom uppdelningen av fordonets batterikapacitet; i två enheter, blir det möjligt att hålla det för katalysatorns uppvärmning avsedda batteriet i det närmaste fulladdat. 10 15 20 25 512 521 3 Dessutom kan de båda batterierna placeras pà olika platser i fordonet, närmast respektive förbrukare.BENEFITS By dividing the vehicle's battery capacity; in two units, it becomes possible to keep the battery intended for the heating of the catalyst almost fully charged. 10 15 20 25 512 521 3 In addition, the two batteries can be placed in different places in the vehicle, closest to the respective consumer.

Ytterligare varianter av uppfinningen framgàr av de efterföljande underkraven.Further variants of the invention appear from the following subclaims.

FIGURBESKRIVNING Ett utföringsexempel av uppfinningen kommer nu att be- skrivas mer detaljerat med hänvisning till den bifogade ritningen, vilken schematiskt visar ett strömförsörj- ningssystem enligt uppfinningen.DESCRIPTION OF THE DRAWINGS An embodiment of the invention will now be described in more detail with reference to the accompanying drawing, which schematically shows a power supply system according to the invention.

FÖREDRAGNA' UTFöRINcs FoRMER Figuren visar uppfinningen mycket schematiskt med ett konventionellt startbatteri 10, vars pluspol och minuspol är' ansluten. via ledningspartierna 11, 12 resp. 13, 14 till konventionella förbrukare 15. Dessa omfattar exem- startmotor, tändsystem, belysnings- pelvis fordonets system, klimatsystem med mera.PREFERRED EMBODIMENTS The figure shows the invention very schematically with a conventional starter battery 10, the positive and negative poles of which are connected. via the line sections 11, 12 resp. 13, 14 to conventional consumers 15. These include engine starters, ignition systems, vehicle lighting systems, climate systems and more.

Startbatteriets 10 poler är' dessutom anslutna till en laddningsgenerator 16 via ledningspartierna 11, 17 - 19 samt 13, 20 och 21. En diod 22 är insatt pà plussidan mellan ledningspartierna 17 och 18. Generatorn är försedd med en kombinerad likriktare och laddningsregulator 23.The poles of the starter battery 10 are also connected to a charge generator 16 via the line sections 11, 17 - 19 and 13, 20 and 21. A diode 22 is inserted on the plus side between the line sections 17 and 18. The generator is provided with a combined rectifier and charge regulator 23.

Det hittills beskrivna uppladdningssystemet är i huvudsak konventionellt. Emellertid har i den vänstra delen av uppvärmningsanordning 24 for figuren inkopplats en fordonets katalysator. Uppvärmningsanordningen 24 ar batteris 25 ledningspartierna 26, 27 och nämnda batteris pluspol via ansluten till ett andra minuspol via ledningspartierna 28, 30 samt en mellan dessa placerad omkopplingsanordning 29. 10 15 20 25 30 512 521 Knutpunkterna 20, 21 och 26, 27 är förbundna med varandra via ett ledningsparti 31. Omkopplingsanordningen 29 är förbunden med generatorns plusutgáng via ledningspar- tierna 32, 33 som ansluter till knutpunkten 18, 19 via en diod 34. Díoderna 22 och 34 är insatta för att separera batteriet 25 från det ordinarie elsystemet. Ytterligare en diod 35 är insatt mellan generatorn 16 och likrik- taren/laddningsregulatorn 23. Dioden 35 är inrättad att kompensera för spänningsfallen i dioderna 22, 34, så att laddningsspänningen över batterierna höjs.The charging system described so far is essentially conventional. However, in the left part of the heating device 24 for the figure, a vehicle catalyst is connected. The heating device 24 is the lead terminals 26, 27 of the battery 25 and the positive pole of said battery via connected to a second negative pole via the lead portions 28, 30 and a switching device 29 located therebetween 29. The terminals 20, 21 and 26, 27 are connected to each other via a line section 31. The switching device 29 is connected to the positive output of the generator via the line sections 32, 33 which connect to the node 18, 19 via a diode 34. The diodes 22 and 34 are inserted to separate the battery 25 from the ordinary electrical system. Another diode 35 is inserted between the generator 16 and the rectifier / charge regulator 23. The diode 35 is arranged to compensate for the voltage drops in the diodes 22, 34, so that the charging voltage across the batteries is increased.

I det normala driftläget är omkopplingsanordningen 29 så inställd, att batteriet 25 är förbundet med och erhåller laddningsström från generatorn 16.In the normal operating mode, the switching device 29 is set so that the battery 25 is connected to and receives charging current from the generator 16.

Vid en kallstart utnyttjas batteriet 10 för att starta motorn. Ett icke visat, katalysatorns temperatur avkän- nande organ är anslutet till omkopplingsanordningen 29 ställa om till ett driftläge, som innebär att ledningarna 28 och 30 förbinds och påverkar denna att andra med varandra. Energi från batteriet 25 förbrukas nu av uppvärmningsanordningen 24 för uppvärmning av katalys- atorn. Batteriet 25, som är placerat nära katalysatorn, kan erhålla laddning från generatorn 16, utan att batteriet 10 belastas. Det temperaturavkännande organet tillbaka katalysatorns arbetstemperatur nåtts. ställer omkopplingsanordningen 29 när Omkopplingsanordningen 29 är dessutom försedd med ett vilket uppvärmningsanordningen när spänningen i batteriet 25 underspänningsskydd, förhindrar inkoppling av understiger ett visst värde, t.ex. cirka 10 volt.In a cold start, the battery 10 is used to start the engine. A catalyst (not shown), the temperature sensing means is connected to the switching device 29 to switch to an operating position, which means that the lines 28 and 30 are connected and influence it to others with each other. Energy from the battery 25 is now consumed by the heating device 24 for heating the catalyst. The battery 25, which is located near the catalyst, can receive charge from the generator 16, without the battery 10 being charged. The temperature sensing means returned the working temperature of the catalyst reached. sets the switching device 29 when the switching device 29 is additionally provided with which the heating device, when the voltage in the battery 25 is undervoltage protection, prevents switching on below a certain value, e.g. about 10 volts.

Uppfinningen är ej begränsad till det ovan beskrivna ut- föringsexemplet, utan flera varianter är' tänkbara inom ramen för efterföljande krav. Exempelvis kan dioderna 22, 10 512 S21 5 34 och 35 vara placerade tillsammans, antingen inuti eller utanför generatorhöljet. Omkopplingsanordningen 29 kan vara utformad som en likspänningsomvandlare, så att batteriet 25 laddas med en högre spänning och följakt- ligen snabbare än batteriet 10.0mkopplingsanordningen 29 kan även vara försedd med organ för mätning av laddnings- uttaget ur batteriet 25, när uppvärmningsanordningen 24 används. Därefter kan spänningen under àterladdning väljas pá ett sådant sätt att àterladdningen sker pà elsystemets snabbast möjliga sätt, utan att övriga spänning antar för làga värden.The invention is not limited to the exemplary embodiment described above, but several variants are conceivable within the scope of the following claims. For example, diodes 22, 10 512 S21 5 34 and 35 may be located together, either inside or outside the generator housing. The switching device 29 can be designed as a direct voltage converter, so that the battery 25 is charged with a higher voltage and consequently faster than the battery. The switching device 29 can also be provided with means for measuring the charging socket from the battery 25, when the heating device 24 is used. Thereafter, the voltage during recharging can be selected in such a way that the recharging takes place in the fastest possible way of the electrical system, without the other voltage assuming too low values.

Claims (9)

10 15 20 25 30 PATENTKRAV10 15 20 25 30 PATENT REQUIREMENTS 1. Elförsörjningssystem för ett med förbrännings- motor utrustat fordon, omfattande generator (16) och batteriaccumulator (10) för alstring respektive lagring av elektricitet samt åtminstone en ibland verksam elektrisk anordning (24) för uppvärmning av en avgaskata- lysator, k ä n n e t e c k n a t av en andra, invid uppvärmningsanordningen (24) placerad batteriaccumulator (25) och en omkopplingsanordning (29) som möjliggör anslutning' av uppvärmningsanordningen (24) till nämnda andra batteriaccumulator.A power supply system for a vehicle equipped with an internal combustion engine, comprising a generator (16) and a battery accumulator (10) for generating and storing electricity, respectively, and at least one sometimes active electrical device (24) for heating an exhaust catalyst, characterized by a second battery accumulator (25) located next to the heating device (24) and a switching device (29) which enables connection of the heating device (24) to said second battery accumulator. 2. Elförsörjningssystem enligt kravet 1, k ä n n e t e c k n a t därav, att omkopplingsanordning- en (29) omfattar organ för avkänning av underspänning i den andra batteriaccumulatorn (25), vilka organ är inrättade att förhindra anslutningen av uppvärmnings- anordningen (24) när accumulatorspänningen understiger ett visst förutbestämt värde.Power supply system according to claim 1, characterized in that the switching device (29) comprises means for sensing undervoltage in the second battery accumulator (25), which means are arranged to prevent the connection of the heating device (24) when the accumulator voltage falls below a certain predetermined value. 3. Elförsörjningssystem enligt kravet 1 eller 2, k ä n n e t e c k n a t därav, att den andra batteri- accumulatorn (25) är förbunden med resterande del av systemet via en första diod (34), för att förhindra att ström flyter i riktning mot den första accumulatorn eller någon av de ordinarie strömförbrukarna (15) i systemet, och att en andra diod (22) är insatt mellan generatorn (16) och den första accumulatorn (10), för att förhindra att ström flyter från denna accumulator (10) i riktning mot uppvärmningsanordningen (24) eller den andra accumulatorn (25).Power supply system according to claim 1 or 2, characterized in that the second battery accumulator (25) is connected to the remaining part of the system via a first diode (34), in order to prevent current from flowing in the direction of the first accumulator. or any of the ordinary power consumers (15) in the system, and that a second diode (22) is inserted between the generator (16) and the first accumulator (10), in order to prevent current from flowing from this accumulator (10) in the direction of the heating device (24) or the second accumulator (25). 4. Elförsörjningssystem enligt kravet 3, k ä n n e- t e c k n a t därav, att omkopplingsanordningen (29) är inrättad att vid omkoppling från ett normalläge, vid vilket den andra accumulatorn (25) är förbunden med 10 15 20 25 30 (fl N! UI 'x ...: 7 generatorn (16), bryta förbindelsen med generatorn och upprätta förbindelsen med uppvärmningsanordningen (24), så att generatorn kan leverera sin effekt till den övriga delen av systemet.Power supply system according to claim 3, characterized in that the switching device (29) is arranged that when switching from a normal position, at which the second accumulator (25) is connected to 10 15 20 25 30 (fl N! UI 'x ...: 7 the generator (16), break the connection with the generator and establish the connection with the heating device (24), so that the generator can supply its power to the rest of the system. 5. Elförsörjningssystem enligt något av kraven 1-4, k ä n n e t e c k n a t därav, att en tredje diod (35) är monterad vid generatorn (16), för att höja laddnings- spänningen över batterierna (10, 25).5. A power supply system according to any one of claims 1-4, characterized in that a third diode (35) is mounted to the generator (16), in order to raise the charging voltage across the batteries (10, 25). 6. Elförsörjningssystem enligt kravet 5, k ä n n e- 't e c }< n a t därav, att dioderna (22, 34, 35) är monterade inuti en för generatorn anordnad likriktare/ laddningsregulator (23).6. A power supply system according to claim 5, characterized in that the diodes (22, 34, 35) are mounted inside a rectifier / charge regulator (23) arranged for the generator. 7. Elförsörjningssystem enligt kravet 5, k ä n n e- t e c 1< n a t därav, att dioderna (22, 34, 35) är monterade på utsidan av en för generatorn anordnad lik- riktare/laddningsregulator (23).7. A power supply system according to claim 5, characterized in that the diodes (22, 34, 35) are mounted on the outside of a rectifier / charge regulator (23) arranged for the generator. 8. Elförsörjningssystem enligt något av kraven 1-7, k ä n ru e t e c k ru a t därav, att omkopplingsanord- ningen (29) omfattar en likspänningsomvandlare, vilken är inrättad att transformera upp spänningen från generatorn (16) till en högre spänning, så att uppladdning av den andra accumulatorn (25) påskyndas.8. A power supply system according to any one of claims 1-7, characterized in that the switching device (29) comprises a direct voltage converter, which is arranged to transform up the voltage from the generator (16) to a higher voltage, so that charging of the second accumulator (25) is accelerated. 9. Elförsörjningssystem enligt kravet 8, k ä n n e- t e c Jc n a t därav, att omkopplingsanordningen (29) omfattar organ för registrering av laddningsuttaget vid användningen av uppvärmningsanordningen (24) och organ för styrning av återuppladdningen, så att motsvarande laddningsmängd återladdas accumulatorn (25) på snabbast möjliga sätt utan att övriga elsystemets spänning antar för låga värden, och utan att accumulatorn (25) skadas.9. A power supply system according to claim 8, characterized in that the switching device (29) comprises means for detecting the charging socket when using the heating device (24) and means for controlling the recharging, so that the corresponding amount of charge is recharged to the accumulator (25). ) in the fastest possible way without the other electrical system voltage assuming too low values, and without damaging the accumulator (25).
SE9100444A 1991-02-14 1991-02-14 Electricity supply system intended for heating an exhaust catalytic converter SE512521C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9100444A SE512521C2 (en) 1991-02-14 1991-02-14 Electricity supply system intended for heating an exhaust catalytic converter
PCT/SE1992/000084 WO1992014631A1 (en) 1991-02-14 1992-02-12 Vehicle battery charging system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9100444A SE512521C2 (en) 1991-02-14 1991-02-14 Electricity supply system intended for heating an exhaust catalytic converter

Publications (3)

Publication Number Publication Date
SE9100444D0 SE9100444D0 (en) 1991-02-14
SE9100444L SE9100444L (en) 1992-08-15
SE512521C2 true SE512521C2 (en) 2000-03-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
SE9100444A SE512521C2 (en) 1991-02-14 1991-02-14 Electricity supply system intended for heating an exhaust catalytic converter

Country Status (2)

Country Link
SE (1) SE512521C2 (en)
WO (1) WO1992014631A1 (en)

Families Citing this family (8)

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US5481175A (en) * 1993-12-20 1996-01-02 Motorola, Inc. System and method for charging auxiliary batteries
DE4422256A1 (en) * 1994-06-24 1996-01-04 Bayerische Motoren Werke Ag Electrical on-board network for vehicle
DE4422198C2 (en) * 1994-06-24 1997-08-28 Audi Ag Method for controlling the electrical heating of a catalytic converter
EP0753925A3 (en) * 1995-07-13 1997-07-02 Renault Electrical supply device for a motor vehicle and methods for control of such a device
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SE9100444D0 (en) 1991-02-14
SE9100444L (en) 1992-08-15

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