DK168171B1 - Method of operating a DC shunt generator connected to an internal combustion engine as starter and device thereto - Google Patents

Method of operating a DC shunt generator connected to an internal combustion engine as starter and device thereto Download PDF

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Publication number
DK168171B1
DK168171B1 DK647589A DK647589A DK168171B1 DK 168171 B1 DK168171 B1 DK 168171B1 DK 647589 A DK647589 A DK 647589A DK 647589 A DK647589 A DK 647589A DK 168171 B1 DK168171 B1 DK 168171B1
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winding
generator
current
combustion engine
starter
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DK647589A
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Danish (da)
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DK647589D0 (en
DK647589A (en
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Erich Kroehling
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Still Gmbh
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/04Starting of engines by means of electric motors the motors being associated with current generators

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)
  • Motor And Converter Starters (AREA)
  • Valve Device For Special Equipments (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Synchronous Machinery (AREA)

Abstract

In order to use a generator 2, which is connected to an internal-combustion engine 1 and drives an electric drive motor 5, as the starter for the internal-combustion engine 1 without providing additional auxiliary windings in the generator 2, it is proposed that current flow through the exciter winding 6 before flowing through the armature winding 8. While the voltage of the starter battery 13 remains essentially constant, it is thereby possible for the exciter field to be built up almost completely before a current flows through the armature winding 8 and produces a torque. A switching arrangement for such a method is also proposed.

Description

DK 168171 B1DK 168171 B1

Opfindelsen angår en fremgangsmåde til drift af en til en forbrændingsmotor tilsluttet jævnstrømsshuntgenerator som starter og indretning dertil.The invention relates to a method for operating a DC shunt generator connected to an internal combustion engine as starter and device thereto.

Til start af forbrændingsmotorer anvendes sæd-5 vanligvis en speciel elektrisk startmotor, som fødes fra et startbatteri, og som via et tandhjul sætter forbrændingsmotorens svinghjul, der har en tandkrans, i omdrejninger. I forbindelse med forbrændingsmotorer, · som driver en kraftig elektrisk generator, som forsyner 10 en elektrisk drivmotor, er det kendt at foretage starten ved hjælp af generatoren, dvs. at anvende generatoren som starter, således at den specielle startmotor og tandkransen kan spares. Til dette formål forsynes generatoren med en speciel hjælpevikling. En sådan frem-15 gangsmåde henholdsvis en sådan indretning er beskrevet i bogen "Elektrls'che Triebfahrzeuge”, bind 2, side 645 af K. Sachs, som angår køretøjer med dieselelektrisk drift; Hjælpeviklingerne er ved dimensioneringen tilpasset til startbatteriet. Anvendes en generator uden 20 hjælpevikling til start og tilsluttes feltviklingen samtidig med ankérviklingen til startbatteriet, så falder startbatteriets spænding kraftigt under indkoblingsforløbet og generatoren bliver kun svagt magneti- * seret. Som følge deraf bliver-det af generatoren afgiv-25 ne drejningsmoment, som er proportionalt med magnetiseringen (den magnetiske fluks) og ankerstrømmen, for ringe til at starte dieselmotoren.In order to start combustion engines, a special electric starter motor is usually used, which is fed from a starter battery and which rotates through the gear of the internal combustion engine having a gear ring. In the case of internal combustion engines, which operate a powerful electric generator, which supplies an electric drive motor, it is known to make the start by means of the generator, ie. to use the generator as starter, so that the special starter motor and the dental crown can be saved. For this purpose, the generator is equipped with a special auxiliary winding. Such a method or device, respectively, is described in the book "Elektrls'che Triebfahrzeuge", volume 2, page 645 by K. Sachs, which relates to vehicles with diesel electric operation; the auxiliary windings are adapted to the starting battery when sizing. 20 auxiliary winding to start and connected to the field winding at the same time as the anchor winding to the starting battery, the voltage of the starting battery drops sharply during the switch-on process and the generator is only slightly magnetized, and as a result the torque emitted by the generator is proportional to the magnetization ( the magnetic flux) and the anchor current, too little to start the diesel engine.

Det er hensigtén med opfindelsen at tilvejebringe en omkostningsguiistig fremgangsmåde og en dertil eg-30 net indretning til drift af en til en forbrændingsmotor tilsluttet jævnstrømsshuntgenerator som starter, ved hvilken hjælpeviklinger ikke er nødvendige.It is an object of the invention to provide a cost-effective method and a suitable device for operating a DC shunt generator connected to a combustion engine starting at which auxiliary windings are not required.

Denne hensigt nås ifølge opfindelsen, ved at feltviklingen gennemløbes af strøm tidsmæssigt før an-35 kerviklingen. Der kan følgelig først opbygges et kraftigt magnetfelt,' således at der, straks når ankervik- DK 168171 B1 2 lingen tidsforsinket gennemløbes af strøm, er en tilstrækkelig stor magnetisering til stede til at opnå et tilstrækkeligt drejningsmoment. Det er i den forbindelse fordelagtigt, hvis ankerviklingen først gennemløbes 5 af strøm efter en tid,;der-svarer til to gange tidskonstanten for feltviklingen, idet der så nås mere end 85% af den mulige magnetisering. Denne tid til opbygning af magnetiseringsfeltet .kan udgøre ca. 0,5 til 1 sekund efter at startforløbet 'blev indledt ved betjening af en 10 tændingsnøgle.This object is achieved according to the invention in that the field winding is run through current temporally before the application winding. Consequently, a strong magnetic field can first be built up so that, as soon as the anchor winding is delayed by current, a sufficiently large magnetization is present to obtain a sufficient torque. In this connection, it is advantageous if the anchor winding is first passed through by current after a time, corresponding to twice the time constant of the field winding, since then more than 85% of the possible magnetization is reached. This time to build the magnetization field can amount to approx. 0.5 to 1 second after the start of operation 'started by operating a 10 ignition key.

For at holde den ohmske modstand i ankerkredsen lav-kan ifølge et yderligere skridt ifølge opfindelsen kommuteringsviklingen frakobles ved startforløbet.In order to keep the ohmic resistance in the anchor circuit low, according to a further step according to the invention, the commutation winding can be switched off at the start course.

Ifølge opfindelsen opnås den beskrevne frem-15 gangsmåde ved hjælp af et kredsløbsarrangement, i hvilket der i en ledning, dér forbinder ankerviklingen med en spændingskilde, findes en kontakt, som står i funktionsmæssig forbindelse med et tidsled. Kontakten forbinder spændingskilden og ankerviklingen tidsforsinket, 20 medens feltviklingén straks forbindes med spændingskilden, således at et magnetiseringsfelt uforstyrret kan bygges op. Som spændingskilde anvendes et startbatteri, som er tilstrækkeligt stærkt til uden problemer afføde feltviklingen og opnå et magnetiseringSfélt og ef-25 terfølgende stiller en tilstrækkelig ankerstrøm til rådighed. Først efter at magnetiseringsfeltet er opbygget slutter kontakten, og ankerviklingen gennemløbes af strøm, hvorefter der frembringes et drejningsmoment, og generatorens rotor og den dertil sluttede forbrændings-30 motors krumtapaksel sættes i omdrejninger. Magnetiseringsfeltet svækkes i den forbindelse kun i ringe grad.According to the invention, the described method is obtained by means of a circuit arrangement, in which in a line connecting the anchor winding to a voltage source there is a contact which is in functional connection with a timing link. The contact connects the voltage source and the anchor winding with time delay, while the field winding is immediately connected to the voltage source so that a magnetization field can be built up undisturbed. As a source of voltage, a starting battery is used which is sufficiently strong to effortlessly feed the field winding and obtain a magnetizationSelf and subsequently provides an adequate anchor current. Only after the magnetic field is built up does the contact end and the anchor winding is run through, then a torque is generated and the generator rotor and the crank shaft of the combustion engine connected thereto are rotated. In this regard, the magnetic field is only slightly degraded.

I en fordelagtig videreudvikling af opfindelsen er kontakten forbundet med en kontaktor og tidsleddet er anbragt i en' signalledning, der står i forbindelse 35 med kontaktoren, hvilken signalledning er tilsluttet spændingskilden under startforløbet. Således kan dér 3 DK 168171 B1 dannes et styrestrømskredsløb, som under startforløbet styrer generatoren og kredsløbsteknisk er adskilt fra et hovedstrømskredsløb, som fungerer under generatorens strømgenerering.In an advantageous further development of the invention, the contact is connected to a contactor and the time link is placed in a signal line which is connected to the contactor, which signal line is connected to the voltage source during the start-up process. Thus, there may be formed a control current circuit which during the startup controls the generator and circuitry is separated from a main current circuit which functions during the generator's current generation.

ψ 5 Når der i signalledningen findes en af et relæ styret kontakt, der kan omskiftes i afhængighed af strømretningen, kan generatorens ankervikling automatisk adskilles fra startbatteriet, så snart forbrændingsmotoren er gået i gang og løber selvstændigt, så-10 ledes at en tilsluttet dynamo nu genererer strøm. I den forbindelse er det hensigtsmæssigt, at relæet er tilsluttet en dynamoregulator, som den kendes fra motorkøretøj steknikken.ψ 5 When there is in the signal line a relay controlled switch which can be switched depending on the current direction, the generator's anchor winding can be automatically separated from the starting battery as soon as the internal combustion engine is running and running independently, so that a connected alternator now generates power. In this connection, it is convenient that the relay is connected to a dynamo controller as it is known from the motor vehicle technique.

En yderligere gunstig udførelsesform for opfin-15 delsen, hvor generatoren står i forbindelse med en elektrisk drivmotor, som den under normal drift forsyner, findes der i en ledning, der forbinder generatoren med drivmotoren, en kontakt, som afbryder ledningen under startforløbet. Derved løber der ingen strøm til 20 drivmotoren, således at startbatteriets strøm udelukkende står til rådighed for generatoren, der fungerer som starter.A further advantageous embodiment of the invention, in which the generator is connected to an electric drive motor which it supplies during normal operation, is provided in a line connecting the generator to the drive motor, a switch which disconnects the line during the start-up process. Thereby, no power is supplied to the 20 drive motor, so that the starter battery current is only available to the generator which acts as a starter.

Specielt fordelagtig er anvendelsen af den beskrevne fremgangsmåde og et tilhørende kredsløbsar-25 rangement i et transportkøretøj, specielt en gaffeltruck med en eller flere elektriske drivmotorer, som får deres strømforsyning fra en af en forbrændingsmotor drevet generator.Particularly advantageous is the use of the method described and an associated circuit arrangement in a transport vehicle, in particular a forklift truck with one or more electric drive motors, which receive their power from a combustion engine driven generator.

Opfindelsen forklares nærmere under henvisning 30 til de efterfølgende skematiske figureksempler, hvor fig. 1 viser et diagram over det tidsafhængige forløb af anker- og magnetiseringsstrøm, fig. 2 et hovedstrømskredsløb, og fig. 3 et styrekredsløb til anvendelse af gene-.The invention is explained in greater detail with reference to the following schematic figure examples, in which fig. 1 is a diagram of the time-dependent course of anchor and magnetization current; FIG. 2 is a main current circuit; and FIG. 3 shows a control circuit for the use of gene.

35 ratoren som starter.35 the starter that starts.

På diagrammet i fig. 1 viser abscissen tiden og ordinaten startbatteriets spænding i procent og strøm- DK 168171 B1 4 men i magnetiseringsvikl ingen og ankervikl ingen i procent. Kurven A viser spændingsforløbet for et startbatteri. Kurven B viser forløbet af strømmen i ankerviklingen. Kurven C viser forløbet af strømmen i feltvik-5 lingen. Den punkterede linie D viser den konstante stigning af magnetiseringsstrømmen ved konstant batterispænding.In the diagram of FIG. 1, the abscissa shows the time and ordinate voltage of the starting battery in percent and current, but in magnet winding no and anchor winding no in percent. Curve A shows the voltage sequence of a starting battery. Curve B shows the course of the current in the anchor winding. Curve C shows the flow of current in the field winding. The dashed line D shows the constant increase of the magnetization current at constant battery voltage.

Batterispændingen udgør ved begyndelsen af startforløbet 100%. Begyndelsen af startforløbet er på 10 abscissen betegnet med 0. Når der nu samtidig løber en , strøm gennem feltviklingen og ankerviklingen, stiger strømstyrken i ankerviklingen meget hurtigt. En tilstrækkelig drejebevægelse kan dog endnu ikke opnås, eftersom magnetiseringsfeltet endnu ikke er opbygget. Som 15 følge af det høje strømforbrug ved samtidig forsyning af felt- og ankervikling, bryder batterispændingen sammen og falder f.eks. til 50%. Som følge deraf stiger magnetiseringsstrømmen kun ganske langsomt og ankerstrømmen falder igen. Ganske vist stiger batterispæn-20 dingen ligeledes igen langsomt men uden at nå det oprindelige niveau igen. Også magnetiseringsstrømmen og dermed magnetiseringsfeltet når langt fra sit maksimum.The battery voltage at the beginning of the start-up cycle is 100%. The beginning of the start course is at 10 abscissa denoted by 0. When, at the same time, one flows through the field winding and the anchor winding, the current in the anchor winding increases very rapidly. However, a sufficient turning motion cannot yet be achieved since the magnetization field is not yet built up. As a result of the high power consumption of simultaneous supply of field and anchor winding, the battery voltage breaks down and e.g. to 50%. As a result, the magnetization current only increases quite slowly and the anchor current decreases again. Admittedly, the battery voltage also rises again slowly but without reaching the original level again. Also the magnetization current and thus the magnetization field reach far from its maximum.

Som følge af manglende magnetisering forbliver således også det over ankeret afgivne drejningsmoment lille.Thus, due to a lack of magnetization, the torque delivered over the armature also remains small.

25 Den punkterede linie D viser stigningen af-mag-, netiseringsstrømmen for tilfældet konstant batterispænding, som kun opnås ved meget stor batterikapacitet men ikke véd et startbatteri, som anvendes til de sædvanligvis anvendte startmotorer. Startbatteriet er dimen-30 sioneret tilstrækkeligt til en startmotor, fordi startmotoren via et tandhjul virker på et fortandet svinghjul på forbrændingsmotorens krumtapaksel, og der på grund af det store omsætningsforhold sker en tilsvarende forøgelse af drejningsmomentet. Benyttes et sådant 35 startbatteri til at forsyne en generator, der ikke er indrettet som starter og som ikke har nogen hjælpeviklinger, så bryder batterispændingen som omtalt sammen.The dashed line D shows the increase of the mag- netizing current for the case of constant battery voltage, which is obtained only at very large battery capacity but not by a starter battery used for the commonly used starter motors. The starter battery is dimensioned sufficiently for a starter motor because the starter motor acts via a gear on a toothed flywheel on the crankshaft of the internal combustion engine and due to the high turnover ratio, a corresponding increase in torque occurs. If such a starter battery is used to supply a generator which is not designed as a starter and which has no auxiliary windings, then the battery voltage breaks down as mentioned.

5 DK 168171 B15 DK 168171 B1

Dette problem løses ved, at magnetiseringsstrømmen løber tidsmæssigt før ankerstrømmen ifølge kurve E.This problem is solved by the magnetization current running temporally before the anchor current according to curve E.

Til tidspunktet 0, altså ved begyndelsen af startforløbet, kan så f.eks. allerede mere end 85% af magnetise-5 ringsstrømmen løbe, således at magnetiseringsfeltet er tilsvarende opbygget, når strømmen løber i ankerviklingen. Magnetiseringsstrømmen vil så ganske vist igen falde, hvilket ikke er vist i diagrammet, men eftersom magnetiseringsfeltet på det tidspunkt, hvor ankerstrøm-10 men frigives, allerede er til stede og har en vis træghed, kan der straks afgives et tilstrækkeligt drejningsmoment over ankeret.At time 0, that is, at the beginning of the start course, then e.g. already more than 85% of the magnetization current is running, so that the magnetization field is similarly constructed when the current is running in the anchor winding. Although the magnetization current will again decrease, which is not shown in the diagram, but since the magnetization field at the time the anchor current is released is already present and has some inertia, a sufficient torque can be delivered immediately over the anchor.

Pig. 2 viser en forbrændingsmotor 1, der er koblet med en generator 2, som via ledninger 3 og 4 15 står i forbindelse med en elektrisk drivmotor 5, og forsyner denne med strøm, når forbrændingsmotoren· kører. Generatoren 2 har en feltvikling 6, en kommu-teringsvikling 7 og en ankervikling 8. Motoren 5 har en feltvikling 6a. Generatoren 2’s feltvikling 6 20 forsynes med strøm via et udgangstrin 9. Styringen af udgangstrinnet 9 sker under startforløbet via en startstyring 10 og under generatordriften via en driftsstyring 11. Ved hjælp af en i dette eksempel som dobbeltkontakt udformet kontakt 12 kan startbatteriet 25 13 via ledninger 14 og 15 forbindes med ledningerne 3 og 4. I ledningen 2 er en kontakt 16, med hvilken drivmotoren 5 kan skilles fra generatoren 2.Pig. 2 shows an internal combustion engine 1 coupled with a generator 2, which is connected via wires 3 and 4 15 to an electric drive motor 5, and supplies it with power when the internal combustion engine · is running. The generator 2 has a field winding 6, a commutation winding 7 and an anchor winding 8. The motor 5 has a field winding 6a. The field winding 6 20 of the generator 2 is supplied with power via an output stage 9. The control of the output stage 9 takes place during the start-up process via a start control 10 and during the generator operation via an operating control 11. By means of a contact 12 formed in this example as double contact 12, the starting battery 25 13 can be supplied via wires. 14 and 15 are connected to wires 3 and 4. In line 2 is a contact 16 with which the drive motor 5 can be separated from the generator 2.

Pig. 3 viser den principielle opbygning af drivstyringen 11. Via ledninger 17 og 18 og en signal-30 ledning 19 er en kontaktor 20 tilsluttet batteriet 13, hvilken kontaktor efter behov forsyner ankerviklin- ‘ gen 8 med strøm via kontakten 12, altså indkobler generatoren. Et tidsled 21 er anbragt i serie med kontaktoren 20. Ligeledes i serie med kontaktoren 20 35 er der i signalledningen 19 en kontakt 22, som styres af et relæ 23, som befinder sig i en ledning 24a, DK 168171 B1 6 der forbinder en dynamo regulator 24 med ledningen 17. Dynamoregulatoren 24 er via en dynamo 25, som er indrettet til at lade startbatteriet 13 og til forsyning af lysnettet, og via en ledning 24b, adskilt fra 5 ledningen 24a, atter forbundet med ledningen 17 og, via en ledning 24c, med ledningen 18. I ledningen 24a findes en kontakt 26, som styres af et relæ 27, · som er koblet i en ledning 19a. Ledningen 19a er tilsluttet ledningen 18 og via en ledning 17a for-10 bundet til ledningen 17 og dermed koblet parallelt med ledningen 19. Ligeledes tilsluttet ledningerne 17a og 18 og dermed koblet parallelt med ledningerne 19 og 19a er en ledning 19b, i hvilken der er en kon-taktor 28, som forsyner feltviklingen 6, via en kon-15 takt 28a og over udgangstrinnet 9, med strøm. Desuden er en ledning 19c tilsluttet ledningen 18 og via en ledning 17b tilsluttet ledningen 17, altså parallelkoblet med ledningerne 19, 19a og 19b. I ledningen 19c er anbragt en kontaktor 29, som står i forbindelse med 20 kontakten 16. De hidtil beskrevne kontakter, kontakto-rer og relæer er i normalstillingeii åbne, dvs. de afbryder den pågældende ledning.Pig. 3 shows the basic structure of the drive control 11. Via wires 17 and 18 and a signal line 19, a contactor 20 is connected to the battery 13, which contactor supplies the anchor winding 8 with power via the switch 12, thus switching on the generator. A timing line 21 is arranged in series with the contactor 20. Also in series with the contactor 20, in the signal line 19 there is a contact 22 which is controlled by a relay 23 which is in a line 24a, which connects a alternator regulator 24 with wire 17. Alternator regulator 24 is connected via line dynamo 25 which is adapted to charge the starting battery 13 and to supply the mains, and via a line 24b, separated from line 24a, to the line 17 and, via a line 24c, with conduit 18. In conduit 24a, there is a contact 26 which is controlled by a relay 27, which is coupled in a conduit 19a. The conduit 19a is connected to the conduit 18 and connected to the conduit 17 via a conduit 17a and thus connected in parallel to the conduit 19. Also connected to the conduits 17a and 18 and thus connected in parallel to the conduits 19 and 19a is a conduit 19b in which a contactor 28, which supplies the field winding 6, via a contactor 28a and above the output stage 9, with current. In addition, a conduit 19c is connected to conduit 18 and via conduit 17b to conduit 17, that is, connected in parallel with conduits 19, 19a and 19b. In the conduit 19c is placed a contactor 29 which is in contact with the contact 16. The contacts, contacts and relays described so far are open in normal position, ie. they disconnect that wire.

Ledningerne 17a og 18 er endelig også forbundet via en ledning 19d, som er koblet parallelt med 25 ledningerne 19a til c. I ledningen 19d findes et relæ 30, som styrer en kontakt 31, som befinder sig i ledningen 19c i serie med kontaktoren 29. Kontakten 31 er sluttet, dvs. ledningen 19c er ikke afbrudt, i normalstillingen, dvs. når kontaktoren 29 er strømløs.Finally, the wires 17a and 18 are also connected via a line 19d which is connected in parallel with the 25 lines 19a to c. In the line 19d there is a relay 30 which controls a contact 31 which is in the line 19c in series with the contactor 29. Switch 31 is closed, i.e. line 19c is not disconnected, in the normal position, ie. when the contactor 29 is powerless.

30 Ledningerne 17a og 17b kan via en startkontakt 32 forbindes med hinanden og ledningen 17. Startkontakten 3-2 har tre stillinger. Den første stilling I er hvilestillingen, i hvilken ledningerne 17a dg 17b ikke er forbundet med ledningen 17 og således løber 35 ingen strøm. I den ånden stilling II er ledningen 17 forbundet med ledningen 17b, hvorved denne er tilslut- DK 168171 B1 7 tet startbatteriet 13. Den tredie stilling III for kontakten 32 forbinder samtidigt ledningen 17 med ledningerne 17a og 17b og gør dem således strømførende. Stillingerne I og II er stabile stillinger. Stil-5 ling III skal fastholdes under startforløbet. Når kontakten 32 frigøres, springer denne selvstændigt tilbage til stilling II.The wires 17a and 17b can be connected to each other via a starter switch 32 and the wire 17. The starter switch 3-2 has three positions. The first position I is the resting position in which the lines 17a and 17b are not connected to the line 17 and thus no current flows. In that spirit position II, the conduit 17 is connected to the conduit 17b, whereby it is connected to the starting battery 13. The third position III of the contact 32 simultaneously connects the conduit 17 to the conduits 17a and 17b and thus energizes them. Positions I and II are stable positions. Position III must be maintained during the starting process. When switch 32 is released, it automatically returns to position II.

Ved start trykkes kontakten 32 til stilling III. Derved trækker relæerne 27 og 30, hvilket bevir-10 ker slutning af kontakten 26 og åbning af kontakten 31. Kontakten 31 fraskiller dermed ledningen 17b, således at kontaktoren 29 forbliver strømløs, og kontakten 16 afbryder ledningen 3 mellem generatoren' 2 og den elektriske drivmotor 5.At start, push the switch 32 to position III. Thereby, relays 27 and 30 pull, causing closure of switch 26 and opening of switch 31. Switch 31 thus separates line 17b so that contactor 29 remains powerless and switch 16 disconnects line 3 between generator 2 and electric drive motor 5th

15 Yderligere indkobles kontaktoren 28 uforsin- ket, således at der kan løbe strøm til feltviklingen.15 Further, the contactor 28 is switched on without delay, so that current can be applied to the field winding.

Slutningen af kontakten 26 bevirker, at der via relæet 23 og kontakten 22 lægges spænding på kontaktoren 20 og tidsleddet 21. Kontaktoren 20 20 tilkobler følgelig tidsforsinket generatoren 2 henholdsvis dens ankervikling 8 til startbatteriet 13, således at der frembringes et drejningsmoment, som sætter forbrændingsmotoren l's krumtapaksel i omdrejninger, indtil denne går igang og løber op i omdrejninger.The end of the switch 26 causes the relay 23 and switch 22 to apply voltage to the contactor 20 and the timing 21. The contactor 20 20 consequently switches the time delay generator 2 and its anchor winding 8, respectively, to the starting battery 13, thus producing a torque which sets the combustion engine 1's. crankshaft in revolutions until it starts and runs up in revolutions.

25 Når forbrændingsmotoren 1 løber af sig selv, afgiver dynamoen 25 spænding, således at strømretningen for strømmen i ledningen 24a vendes og relæet 23, som skifter afhængigt af strømretningen, åbner kontakten 22 i signalledningen 19. Derefter er kontaktoren 20 30 strømløs, hvorved kontakten 12 åbner og generatoren 2 atter adskilles fra startbatteriet 13.25 As the internal combustion engine 1 runs on its own, the alternator 25 emits voltage so that the current direction of the current in the line 24a is reversed and the relay 23 which changes depending on the current direction opens the contact 22 in the signal line 19. Thereafter, the contactor 30 is powerless, whereby the switch 12 opens and the generator 2 is again separated from the starting battery 13.

Ved efterfølgende frigørelse af kontakten 32 springer denne af sig selv tilbage i stilling II, hvorved relæet 27 er strømløst og kontakten 26 åb-35 nes. Kontaktoren 28 adskilles ligeledes fra startbatteriet 13, således at der ikke længere løber strøm fra DK 168171 B1 8 startbatteriet 13 til feltviklingen 6. Magnetiseringsstrømmen frembringes nu af dynamoen 25 selv, og den kontrolleres af driftsstyringen 11. Endelig er også relæet 30 strømløst, hvilket bevirker slutning* 5 af kontakten 31 og derefter trækning af kontaktoren 29, således at kontakten 16 atter forbinder den afbrudte ledning 3, og generatorstrømmen kan løbe til den elektriske drivmotor 5.Upon subsequent release of the switch 32, the latter by itself reverts to position II, whereby the relay 27 is energized and the contact 26 is opened. The contactor 28 is also separated from the starting battery 13 so that current no longer runs from the starting battery 13 to the field winding 6. The magnetization current is now generated by the alternator 25 itself and it is controlled by the operating control 11. Finally, the relay 30 is also powerless, which causes closing * 5 of switch 31 and then pulling of contactor 29 so that switch 16 reconnects the disconnected wire 3 and the generator current can flow to the electric drive motor 5.

Claims (9)

9 DK 168171 B19 DK 168171 B1 1. Fremgangsmåde til drift af en til en forbrændingsmotor tilsluttet jævnstrømsshuntgenerator som starter, kendetegnet ved, at feltviklingen (6) gennemløbes af strøm tidsmæssigt før ankerviklingen 5 (8).A method of operating a DC shunt generator connected to a combustion engine starting, characterized in that the field winding (6) passes through current in time before the anchor winding 5 (8). 2. Fremgangsmåde ifølge krav 1, k e n d e -tegnet ved, at ankerviklingen (8) gennemløbes af strøm efter en tid, der svarer til to gange tidskonstanten for feltviklingen (6).A method according to claim 1, characterized in that the anchor winding (8) is passed through current after a time corresponding to twice the time constant of the field winding (6). 3. Fremgangsmåde ifølge et af kravene 1 eller 2, for en generator med kommuteringsvikling, kendetegnet ved, at kommuteringsviklingen (7) frakobles ved start af forbrændingsmotoren (1).Method according to one of the claims 1 or 2, for a generator with commutation winding, characterized in that the commutation winding (7) is switched off at the start of the combustion engine (1). 4. Kredsløbsarrangement til en' fremgangsmåde 15 ifølge et eller flere af de foregående krav, kendetegnet ved, at der i en ledning (14), der forbinder ankerviklingen (8) med en spændingskilde (13), findes en kontakt (12), som står i funktionsmæssig forbindelse med et tidsled (21).Circuit arrangement for a method 15 according to one or more of the preceding claims, characterized in that a contact (12) is provided in a line (14) connecting the anchor winding (8) to a voltage source (13). is functionally connected to a time link (21). 5. Kredsløbsarrangement ifølge krav 4, ken detegnet ved, at kontakten (12) er forbundet, med en kontaktor (20) og tidsleddet (21) er anbragt i en signalledning (19), der står i forbindelse med kon-taktoren (20), hvilken signalledning (19) er tilsluttet 25 spændingskilden (13) under startforløbet.Circuit arrangement according to claim 4, characterized in that the switch (12) is connected to a contactor (20) and the timing link (21) is arranged in a signal line (19) which is connected to the contactor (20). which signal line (19) is connected to the voltage source (13) during the start-up. 6. Kredsløbs arrangement ifølge krav 5, kendetegnet ved, at der i signalledningen (19) findes en kontakt (22), styret af et relæ (23), idet relæet (23) kan omskiftes i afhængighed af strømretnin- 3. gen.Circuit arrangement according to claim 5, characterized in that in the signal line (19) there is a contact (22) controlled by a relay (23), the relay (23) being switchable depending on the current direction. 7. Kredsløbsarrangement ifølge krav 6, kendetegnet ved, at relæet (23) er tilsluttet en dynamoregulator (24). DK 168171 B1 10Circuit arrangement according to claim 6, characterized in that the relay (23) is connected to a dynamo controller (24). DK 168171 B1 10 8. Kredsløbsarrangement ifølge et eller flere af kravene 4 til 7, hvor generatoren står i forbindelse med en elektrisk drivmotor, kendetegnet ved, at der i en ledning (3), der forbinder generatoren (2) 5 med drivmotoren (5), findes en kontakt (16), som afbryder ledningen (3) under startforløbet.Circuit arrangement according to one or more of claims 4 to 7, wherein the generator is connected to an electric drive motor, characterized in that a line (3) connecting the generator (2) 5 with the drive motor (5) is provided. switch (16) which disconnects cable (3) during the start-up process. 9. Anvendelse af en fremgangsmåde ifølge et eller flere af kravene 1 til 3, og et kredsløbsarrangement ifølge et eller flere af kravene 4 til 8 i et 10 transportkøretøj, specielt en gaffeltruck.Use of a method according to one or more of claims 1 to 3, and a circuit arrangement according to one or more of claims 4 to 8 in a transport vehicle, in particular a forklift truck.
DK647589A 1988-12-20 1989-12-19 Method of operating a DC shunt generator connected to an internal combustion engine as starter and device thereto DK168171B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3842834A DE3842834A1 (en) 1988-12-20 1988-12-20 METHOD FOR OPERATING A DC-CIRCUIT GENERATOR CONNECTED TO AN INTERNAL COMBUSTION ENGINE AS A STARTER AND DEVICE THEREFOR
DE3842834 1988-12-20

Publications (3)

Publication Number Publication Date
DK647589D0 DK647589D0 (en) 1989-12-19
DK647589A DK647589A (en) 1990-06-21
DK168171B1 true DK168171B1 (en) 1994-02-21

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Application Number Title Priority Date Filing Date
DK647589A DK168171B1 (en) 1988-12-20 1989-12-19 Method of operating a DC shunt generator connected to an internal combustion engine as starter and device thereto

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EP (1) EP0374584B1 (en)
JP (1) JPH02246799A (en)
KR (1) KR900010220A (en)
AT (1) ATE74405T1 (en)
BG (1) BG50506A3 (en)
DE (2) DE3842834A1 (en)
DK (1) DK168171B1 (en)
ES (1) ES2031678T3 (en)
GR (1) GR3004703T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07119594A (en) * 1993-09-02 1995-05-09 Nippondenso Co Ltd Internal engine starter for vehicle
JP2012228017A (en) 2011-04-18 2012-11-15 Mitsubishi Electric Corp Controller of generator-motor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR518235A (en) * 1916-01-29 1921-05-21 Siemens Schuckertwerke Gmbh Starting system for direct current shunt motors
US3175095A (en) * 1960-02-10 1965-03-23 Bendix Corp Outboard marine starter-generator dynamo
JPS5577381A (en) * 1978-12-04 1980-06-11 Toyo Umpanki Co Ltd Starter for shunt-wound dc motor
JP2617936B2 (en) * 1987-05-09 1997-06-11 三菱電機株式会社 Engine start charging device

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DE3842834A1 (en) 1990-06-21
ES2031678T3 (en) 1992-12-16
BG50506A3 (en) 1992-08-14
DK647589D0 (en) 1989-12-19
GR3004703T3 (en) 1993-04-28
EP0374584A1 (en) 1990-06-27
EP0374584B1 (en) 1992-04-01
KR900010220A (en) 1990-07-06
DE58901089D1 (en) 1992-05-07
JPH02246799A (en) 1990-10-02
ATE74405T1 (en) 1992-04-15
DK647589A (en) 1990-06-21

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Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed