SI23247A - Power circuit for controlling the flame glowing plug and magnetic valve - Google Patents

Power circuit for controlling the flame glowing plug and magnetic valve Download PDF

Info

Publication number
SI23247A
SI23247A SI200900386A SI200900386A SI23247A SI 23247 A SI23247 A SI 23247A SI 200900386 A SI200900386 A SI 200900386A SI 200900386 A SI200900386 A SI 200900386A SI 23247 A SI23247 A SI 23247A
Authority
SI
Slovenia
Prior art keywords
switches
transistors
ips
plug
flame
Prior art date
Application number
SI200900386A
Other languages
Slovenian (sl)
Inventor
Aleš KRANJC
IÄŚ Peter URĹ
Original Assignee
Hidria AET DruĹľba za proizvodnjo vĹľignih sistemov in elektronike d.o.o.
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 Hidria AET DruĹľba za proizvodnjo vĹľignih sistemov in elektronike d.o.o. filed Critical Hidria AET DruĹľba za proizvodnjo vĹľignih sistemov in elektronike d.o.o.
Priority to SI200900386A priority Critical patent/SI23247A/en
Priority to PCT/SI2010/000059 priority patent/WO2011075089A1/en
Publication of SI23247A publication Critical patent/SI23247A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
    • F02N19/06—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of combustion-air by flame generating means, e.g. flame glow-plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/042—Combustion air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/16—Other apparatus for heating fuel
    • F02M31/163—Preheating by burning an auxiliary mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
    • F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/14—Power supply for engine control systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2300/00—Control related aspects of engine starting
    • F02N2300/10—Control related aspects of engine starting characterised by the control output, i.e. means or parameters used as a control output or target
    • F02N2300/108—Duty cycle control or pulse width modulation [PWM]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P11/00—Safety means for electric spark ignition, not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

The power circuit according to the invention enables a fast, safe and reliable control of the flame glowing plug located in the suction collector and control of a magnetic valve in a system for cold start-up of diesel engines while the system for cold start-up of diesel engines consists of a battery and an alternator as the electric power generator, a controller, an engine computer, a flame glowing plug, an electromagnetic valve, connecting cables and pipes for the supply of fuel under pressure. The circuit includes two transistors (Tr1, Tr2) with intrinsic diode connected in series and two IPS switches (Sw1, Sw2), where the originating terminals (S1, S2) of the transistors (Tr1, Tr2) are interconnected and the drain (D1) of the first transistor (Tr1) is linked to the supply voltage (Ubatt) of the battery or alternator, while the drain (D2) for the flame glowing plug (FGP) and the second switch (Sw2) for the magnetic valve (MV) and both gates (G1, G2) of the transistors (Tr1, Tr2) are interconnected and attached to the signal from the control electronics (CE). In this each of the transistors (Tr1, Tr2) can feature zero, one or several additional transistors connected in parallel, while from the supply point (P1) apart from the IPS switches for the flame glowing plug (FGP) and the magnetic valve (MV) zero, one or several additional IPS switches can be connected in parallel or as additional switches for additional electric loads. The complete circuit enables a disconnection of the electric current in case of a reversed polarity of the battery and in the case of a failure of the IPS switches.

Description

-1Električno močnostno vezje za krmiljenje plamenske čepne svečke in magnetnega ventila-1Electrical power circuit for controlling flame plug and solenoid valve

Predmet izuma je električno močnostno vezje, locirano v krmilniku, ki sodi v področje močnostne elektronike in se uporablja za hitro, varno in zanesljivo krmiljenje plamenske čepne svečke, locirane v sesalnem kolektorju in magnetnega ventila v sistemu za hladen zagon diesel motorjev.The subject of the invention is an electrical power circuit located in a controller that falls within the field of power electronics and is used to quickly, safely and reliably control the flame plug plug located in the intake manifold and the solenoid valve in the cold start system for diesel engines.

Sistem za hladen zagon diesel motorjev se uporablja za omogočanje hladnega zagona, pomoč pri hladnem zagonu diesel motorjev in za redukcijo škodljivih izpušnih plinov med zagonom in delovanjem motorja.The cold start system for diesel engines is used to enable cold start, assist in cold start of diesel engines and to reduce harmful exhaust gases during engine start-up and operation.

Proceduro zagona hladnega diesel motorja krmili program, to je software, ki se izvaja v motornem računalniku ali v krmilniku.The procedure for starting a cold diesel engine is controlled by a program, that is, software running on a motor computer or controller.

Najprej se vklopi svečka in se segreje do delovne temperature. Ob zaganjanju motorja se vklopi magnetni ventil, ki sprosti pretok goriva do plamenske čepne svečke. Ob stiku goriva z vročo površino plamenske čepne svečke in ob prisotnosti zraka se gorivo vžge. Plamen plamenske čepne svečke v sesalnem kolektorju ogreva vsesani zrak in omogoči motorju boljše zgorevanje.First the spark plug comes on and warms up to the operating temperature. When starting the engine, a solenoid valve is activated to release the fuel flow to the spark plug. When the fuel comes in contact with the hot surface of the flame plug and in the presence of air, the fuel ignites. The flame of the plug plug in the intake manifold heats the intake air and allows the engine to burn better.

Da sistem deluje učinkovito, mora plamenska čepna svečka ob priklopu na napajalno napetost akumulatorja delovati na zgornji meji svojih zmogljivosti. Ko motor steče, se v električni sistem vklopi altemator, zato se napetost akumulatorja dvigne. Da svečka ne bi bila preobremenjena, je potrebno povišano napajalno napetost reducirati. Najbolj primeren način redukcije višine efektivne napetosti je krmiljenje svečke v načinu pulzno širinske modulacije, v nadaljevanju PWM.For the system to function effectively, the flame plug plug must operate at the upper limit of its capacity when connected to the battery supply voltage. When the engine starts, the alternator is switched on to the electrical system and the battery voltage rises. In order not to overload the spark plug, the increased supply voltage must be reduced. The most suitable way of reducing the effective voltage is to control the spark plug in pulse width modulation mode, hereinafter referred to as PWM.

Za nižanje efektivne napetosti na plamenski čepni svečki se zaradi velikih tokov uporablja mehanski rele s predimenzioniranimi kontakti. Delovni cikel ali razmerje signal / pavza in frekvenco definira program v krmilniku ali motornemu računalniku glede na trenutno napajalno napetost. Frekvenca je nizka, običajno znaša pod 2 Hz in je nespremenljiva.Due to high currents, a mechanical relay with oversized contacts is used to reduce the effective voltage on the flame plug. The duty cycle or the signal / pause / frequency ratio defines the program in the controller or the motor computer according to the current supply voltage. The frequency is low, typically below 2 Hz and is fixed.

-2Da bi kontakti releja zdržali skozi življenjsko dobo vozila, mora biti frekvenca PWM signala dovolj nizka, okoli 1 Hz ali manj. Zaradi visokega pulzirajočega toka skozi plamensko čepno svečko napetost na vozilu niha, kar občutijo drugi električni porabniki. Lahko se opazi nihanje svetilnosti žarnic.-2 For the relay contacts to last through the life of the vehicle, the frequency of the PWM signal must be low enough, about 1 Hz or less. Due to the high pulsating current, the voltage on the vehicle fluctuates through the flame plug, which is felt by other electrical consumers. Fluctuations in the luminance of lamps may be observed.

Kontakti releja se lahko zvarijo skupaj. V tem primeru ostane svečka stalno vklopljena, tudi ko je napetost previsoka in tudi ko je vozilo ustavljeno. Kljub okvari teče čez varovalko nazivni tok, zato varovalka ne pregori. Zaradi previsoke napetosti lahko pregori krmiljena plamenska čepna svečka.The relay contacts can be welded together. In this case, the spark plug stays on constantly, even when the voltage is too high and even when the vehicle is stopped. Despite the fault, the nominal current flows over the fuse, so the fuse does not blow. Controlled flame plugs can burn out due to excessive voltage.

Tehnični problem, ki ni zadovoljivo rešen, je uporaba mehanskega releja kot stikalne komponente krmilnika sistema za hladen zagon diesel motorjev v PWM načinu delovanja. Takšen sistem zaradi možnosti zvaritve kontaktov releja ni zanesljiv, hkrati pa nizka dovoljena frekvenca PWM signala opazno neenakomerno obremenjuje napetostne vire na vozilu.A technical problem that is not satisfactorily solved is the use of a mechanical relay as a switch component of the controller for the cold start of diesel engines in PWM mode. Such a system is not reliable due to the possibility of welding the relay contacts, but at the same time the low PWM signal frequency noticeably imbalances the voltage sources on the vehicle.

Naloga in cilj izuma je konstrukcija električnega močnostnega vezja v krmilniku sistema za hladni zagon diesel motorja, ki omogoča višjo frekvenco PWM signala in zanesljivo delovanje z vso robustnostjo, ki jo omogoča sistem z mehanskim relejem.The object and object of the invention is to construct an electrical power circuit in the controller of a cold start diesel engine, which enables a higher frequency of PWM signal and reliable operation with all the robustness provided by a system with a mechanical relay.

Po izumu je naloga rešena z električnim močnostnim vezjem za krmiljenje plamenske čepne svečke in magnetnega ventila, ki omogoča visoko frekvenco PWM signala ter zanesljivo delovanje.According to the invention, the problem is solved by an electrical power circuit for controlling the flame plug and a solenoid valve, which allows for a high frequency of PWM signal and reliable operation.

Opis izumaDescription of the invention

Izum bo opisan s pomočjo izvedbenega primera in slike, ki prikazuje:The invention will be described by way of an embodiment and an illustration showing:

Slika 1: Shema električnega močnostnega vezjaFigure 1: Schematic of the electrical power circuit

Sistem za hladni zagon diesel motorjev je sestavljen iz akumulatorja in altematorja kot generatorja električne energije, krmilnika, motornega računalnika, plamenske čepne svečke, elektromagnetnega ventila, povezovalnih kablov ter cevk za dovod goriva pod tlakom.The diesel engine cold start system consists of a battery and an alternator as a power generator, controller, motor computer, flame plug, solenoid valve, connecting cables and pressurized fuel lines.

-3Naloga tega sistema je, da omogoči ali olajša hladni zagon diesel motorja ter da omogoči manjši izpust škodljivih plinov pri hladnem ali vročem motorju.-3 The purpose of this system is to enable or facilitate the cold start of a diesel engine and to allow a lower emission of harmful gases in a cold or hot engine.

Cilj sistema je po potrebi s plamenom ogreti vsesani zrak v sesalnem kolektorju diesel motorja. Ob vklopu sistema se najprej segreje plamenska čepna svečka na delovno temperaturo, nato vklopi magnetni ventil, ki sprosti pretok goriva v plamensko čepno svečko. Ob stiku goriva z vročo površino grelca plamenske čepne svečke in ob prisotnosti zraka se pojavi plamen, ki direktno segreva vsesani zrak.The aim of the system is to heat the intake air in the intake manifold of the diesel engine, if necessary. When the system is switched on, the flame plug plug is first heated to operating temperature, then the solenoid valve is activated, which releases the fuel flow into the flame plug plug. When the fuel comes in contact with the hot surface of the plug plug heater and in the presence of air, a flame appears which directly heats the intake air.

Program v motornem računalniku nadzira delovanje sistema za hladen zagon. Program določa, kdaj, za koliko časa in s kakšnim signalom morata biti napajana plamenska čepna svečka in magnetni ventil. Program se odloča na podlagi signalov, ki jih dobi s senzorjev na motorju.The program on the motor computer controls the operation of the cold start system. The program determines when, for how long, and with what signal the flame plug plugs and the solenoid valve must be powered. The program is decided based on the signals it receives from the sensors on the motor.

Program se lahko izvaja tudi v krmilniku. V tem primeru mora krmilnik imeti na razpolago vse signale, potrebne za pravilno določitev pri krmiljenju plamenske čepne svečke in magnetnega ventila ter primeren mikrokontroler.The program can also be run in the controller. In this case, the controller must have at its disposal all the signals necessary to correctly determine when controlling the flame plug and the solenoid valve and a suitable microcontroller.

Na začetku procedure se krmilnik napaja iz akumulatorja in vklopi svečko. Za hiter zagon hladnega motorja se mora plamenska čepna svečka čim prej segreti na temperaturo, primemo za vžig goriva. Dimenzionirana je tako, da deluje optimalno pri nazivni napetosti akumulatorja. Povišana napetost plamensko čepno svečko lahko poškoduje ali uniči.At the beginning of the procedure, the controller is powered from the battery and the spark plug is turned on. To start the cold engine quickly, the flame plug must be heated to the temperature as soon as possible, suitable for starting the fuel. It is designed to work optimally at rated battery voltage. Increased voltage may damage or destroy the flame plug.

Ko se motor zažene, nalogo vira napajanja prevzame altemator. Napetost altematorja je višja od napetosti akumulatorja, zato da se akumulator sploh lahko polni.When the engine starts, the alternator takes over the task of the power source. The alternator voltage is higher than the battery voltage so the battery can be charged at all.

Da se svečka ob povišani napetosti ne poškoduje, se mora efektivna napetost na svečki znižati na nazivno napetost svečke. To se naredi s pulzno širinsko modulacijo PWM napajanja plamenske čepne svečke. Drugi izhodi so lahko s PWM signalom krmiljeni z enakim ali drugačnim namenom. S PWM krmiljenjem magnetnega ventila lahko posredno krmilimo dotok goriva v plamensko čepno svečko.In order not to damage the spark plug when the voltage is increased, the effective spark plug voltage must be reduced to the rated spark plug voltage. This is done by pulse width modulation of the PWM power of the flame plug. Other outputs can be controlled by PWM signal for the same or different purpose. PWM solenoid valve control can indirectly control the flow of fuel into the flame plug.

PWM signal je pogosto uporabljen v elektrotehniki. Definirata ga frekvenca in delovni cikel signala. Signal ima le dve stabilni legi, ko je vklopljen in ko je izklopljen. Frekvenca signalaPWM signal is widely used in electrical engineering. It is defined by the frequency and duty cycle of the signal. The signal has only two stable positions when it is on and off. Signal frequency

-4nam pove, kolikokrat se perioda signala ponovi v sekundi, delovni cikel pa nam pove, kolikšen del periode je signal aktiven, izraženo v procentih.-4 tells us how many times the signal period repeats per second, and the duty cycle tells us how much of the signal period is active, expressed as a percentage.

Ker PWM signal ne preklopi iz enega končnega stanja v drugega v hipu, ampak za to porabi nek čas, se med preklopom na IPS-ju trošijo velike trenutne moči. Inteligentna močnostna stikala - v nadaljevanju IPS-ji (ang.: Intelligent Power Switch) omogočajo frekvence do 1 kHz, vendar zaradi preklopnih izgub želimo uporabiti čim nižjo frekvenco. V avtomobilski industriji se v podobne namene uporablja frekvenca okoli 32 Hz. Ta frekvenca je dovolj visoka, da človeško oko ne zazna utripanja žarnice, priklopljene na isti izvor napetosti kot sistem za hladen zagon diesel motorjev, hkrati pa je dovolj nizka, da so preklopne izgube minimalne.Since the PWM signal does not switch from one end state to another in an instant, but does take some time, large instantaneous power is consumed during switching on the IPS. Intelligent Power Switches - Hereinafter referred to as IPSs (Intelligent Power Switch) allow frequencies up to 1 kHz, but because of switching losses we want to use the lowest frequency possible. In the automotive industry, a frequency of about 32 Hz is used for similar purposes. This frequency is high enough that the human eye does not detect the flickering of a lamp connected to the same voltage source as the diesel engine cold start system, but is low enough that the switching losses are minimal.

Preklopni časi trajajo približno od 50 ps do približno 500 ps. Ne smejo biti prehitri, ker bi v nasprotnem primeru povzročili preveč izsevanih elektromagnetnih motenj.Switching times range from about 50 ps to about 500 ps. They should not be too fast, otherwise they would cause too much electromagnetic interference.

Podobne naprave v avtomobilski industriji uporabljajo delovne cikle od 5% do 95%. Dovoljena je tudi uporaba 0% delovnega cikla, ko je signal izklopljen, in 100% delovnega cikla, ko je signal stalno vklopljen. Vrednosti med 0% in 5% ter med 95% in 100% se navadno ne uporabljajo zaradi preklopnih časov.Similar devices in the automotive industry use duty cycles of 5% to 95%. It is also allowed to use 0% duty cycle when the signal is off and 100% duty cycle when the signal is constantly on. Values between 0% and 5% and between 95% and 100% are not normally used due to switching times.

Na bremenu pomeni izklopljen PWM signal napetost 0V, vklopljen PWM signal pa pomeni napetost sistema, zmanjšano za padce napetosti na povezovalnih kablih, padec napetosti zaradi notranje upornosti napetostnega vira ter padcev napetosti na obravnavanem električnem močnostnem vezju.On the load, the PWM signal means 0V, and the PWM signal means system voltage less the voltage drops on the connecting cables, the voltage drop due to the internal resistance of the voltage source, and the voltage drops on the considered power circuit.

Bistvo izuma je električno močnostno vezje, locirano v krmilniku, ki omogoča PWM napajanje plamenske čepne svečke in magnetnega ventila, hkrati pa je odporno na obrnjeno polariteto akumulatorja, kratkotrajno prenapetost in ima možnost sekundarnega izklopa bremen v primeru okvare.The essence of the invention is an electrical power circuit, located in the controller, which enables the PWM to supply the flame plug and the solenoid valve, while being resistant to reversed battery polarity, short-term overvoltage and having the possibility of secondary switching off of loads in case of failure.

Električno močnostno vezje po izumu je vezje, sestavljeno iz močnostnih komponent in omogoča napajanje bremen s PWM signalom, izklop vezja ob obrnjeni polariteti akumulatorja ter sekundami izklop.An electrical power circuit according to the invention is a circuit consisting of power components and enables the charging of loads with a PWM signal, switching off the circuit at reverse polarity of the battery and switching off for seconds.

-5Glavno nalogo prevzema inteligentno močnostno stikalo IPS. To je komponenta, preko katere krmilimo na maso priključeno breme. Omogoča merjenje toka, hkrati pa omogoča temperaturno zaščito, zaščito pred kratkim stikom, zaščito pred previsokim tokom in zaščito pred previsoko napetostjo. IPS za krmiljenje plamenske čepne svečke označimo s Swl, IPS za magnetni ventil pa s Sw2. Če imamo več izhodov, uporabimo več IPS-jev, ki jih priključimo na enak način kot Swl in Sw2. Ponavadi je napajanje IPS-jev vezano neposredno na napajalno napetost Ubatt·-5The IPS intelligent power switch is the main task. This is the component through which the load connected to the mass is controlled. It provides current measurement while providing temperature protection, short circuit protection, overcurrent protection and overvoltage protection. We designate the IPS for controlling the flame plug as Swl and the IPS for the solenoid valve as Sw2. If we have multiple outputs, we use multiple IPSs, which we connect in the same way as Swl and Sw2. Usually, the IPSs supply is directly connected to the Ubatt supply voltage ·

Ob obrnjeni polariteti akumulatorja ali ob poškodbi IPS-ja, IPS stalno prevaja električni tok brez možnosti izklopa. Zato je potrebno električno močnostno vezje izboljšati z uporabo dveh ali več tranzistorjev, ki omogočijo izklop električnega toka neodvisno od polaritete akumulatorja.When the battery polarity is reversed or the IPS is damaged, the IPS continuously conducts electrical current without the possibility of switching off. Therefore, it is necessary to improve the electrical power circuit by using two or more transistors that allow the power to be turned off regardless of the polarity of the battery.

Posledično IPS-i niso vezani direktno na napajalno napetost Ubatt, ampak v napajalno točko Pl. Med napajalnim priključkom Ubatt in napajalno točko Pl sta v serijo vezana dva diskretna, visoko tokovna, navadno N-kanalna MOSFET tranzistorja Tri in Tr2 z vgrajeno intrinsično diodo kot posledico proizvodnega procesa. Za tranzistorje za visoke tokove intrinsične diode s sedanjimi proizvodnimi postopki še ne moremo eliminirati. Poleg tranzistorjev Tri in Tr2 vsebujejo intrinsično diodo tudi IPS-i Swl in Sw2 in vsi nadaljnji IPS-i.As a result, IPSs are not connected directly to the Ubatt supply voltage, but to the supply point Pl. There are two discrete, high-current, usually N-channel MOSFETs transistors Three and Tr2 with a built-in intrinsic diode as a consequence of the production process, connected between the Ubatt power connector and the Pl power point. For high current transistors, intrinsic diodes with current production processes cannot be eliminated. In addition to the transistors Tri and Tr2, the intrinsic diode also contains Swl and Sw2 IPSs and all subsequent IPSs.

Tranzistorja Tri in Tr2 ter IPS stikala Swl in Sw2 lahko na vezju nastopajo v samostojnih ohišjih. Posamezne komponente lahko poljubno združujemo v posamezna ohišja. Tranzistor Tr2 je lahko vgrajen v IPS.Three and Tr2 transistors and IPS Swl and Sw2 switches can be used in standalone enclosures. Individual components can be arbitrarily combined into individual housings. The Tr2 transistor can be integrated into the IPS.

Da tranzistorja Tri in Tr2 lahko izklopita tok v obeh smereh, morata biti vezana tako, da imata izvore Sl in S2 povezane skupaj. Tako sta intrinsični diodi vezani v obratnih smereh glede na tok in se medsebojno izključujeta.In order for the transistors Tri and Tr2 to be able to switch off current in both directions, they must be connected so that the sources Sl and S2 are connected together. Thus, the intrinsic diodes are coupled in reverse directions with respect to current and are mutually exclusive.

Tranzistor Tri je vezan med napajalno napetost in Tr2. Krmilni elektroniki CE omogoča izklop izhoda v primeru okvare IPS-jev Swl ali Sw2. Tranzistor Tri nam omogoča sekundami izklop v primeru okvare enega ali več izhodov.Transistor Three is coupled between the supply voltage and Tr2. The CE control electronics enable the output to be switched off in the event of a failure of Swl or Sw2 IPSs. Transistor Three allows us to turn off seconds in the event of one or more outputs failing.

Tranzistor Tr2 je vezan med tranzistorjem Tri in napajalno točko Pl. Namenjen je izklopu izhodov v primeru obrnjene polaritete akumulatorja. Zaradi intrinsične diode mora bitiTransistor Tr2 is coupled between transistor Three and supply point Pl. It is intended to switch off the outputs in the case of reversed battery polarity. Due to the intrinsic diode it must be

-6orientiran tako, da ob normalnem delovanju tok v tranzistorju T2 teče v obratni smeri od nazivne. Ob normalnem delovanju je tranzistor Tr2 stalno vklopljen, da se minimizira izguba moči na njem.-6 oriented in such a way that in normal operation the current in transistor T2 flows in the opposite direction from the nominal one. In normal operation, the Tr2 transistor is constantly switched on to minimize the loss of power on it.

Oboja vrata Gl in G2 tranzistorjev Tri in Tr2 sta zvezana skupaj in sta priklopljena na signal iz krmilne elektronike CE. V primeru okvare izhoda ali obrnjene polaritete akumulatorja krmilna elektronika CE izklopi oba tranzistorja. Dejansko izklopi le eden, ker bo v drugem tranzistorju prevajala intrinsična dioda.Both the Gl and G2 ports of the transistors Tri and Tr2 are connected together and are connected to a signal from the CE control electronics. In the event of a fault in the output or reversed battery polarity, the CE control electronics will shut off both transistors. In fact, only one switches off, because an intrinsic diode will conduct in the other transistor.

Možna je tudi orientacija tranzistorjev tako, da imata skupaj povezane ponoma priključka Dl in D2 tranzistorjev Tri in Tr2. Ob tem je funkcija tranzistorjev medsebojno zamenjana. Ta orientacija je mogoča, vendar zahteva bolj komplicirano krmiljenje vrat tranzistorjev Tri in Tr2, obenem pa povzroča višje preklopne izgube na Tri in Tr2.It is also possible to orient the transistors so that the terminals D1 and D2 of the transistors Tri and Tr2 are connected together. The function of the transistors is interchangeable. This orientation is possible but requires more complicated control of the Tri and Tr2 transistor ports, while causing higher switching losses on the Tri and Tr2.

Celotno električno močnostno vezje nadzira krmilna elektronika CE, ki glede na ukaze programa in stanja obravnavanega električnega močnostnega vezja in bremen krmili močnostne komponente električnega močnostnega vezja. Krmilna elektronika CE krmili oboja vrata Gl in G2 tranzistorjev Tri in Tr2 skupaj ter vsak IPS posebej.The entire electrical power circuit is controlled by the control electronics CE, which controls the power components of the electrical power circuit according to the program commands and status of the electrical power circuit and loads under consideration. The CE control electronics controls both the Gl and G2 ports of the Tri and Tr2 transistors together and each IPS separately.

Krmilna elektronika CE poskrbi, da signal na vratih Gl in G2 tranzistorjev Tri in Tr2 ni prisoten ob obrnjeni polariteti akumulatorja ali ob okvari posameznega IPS-ja Swl ali Sw2 ali obeh. Ko je krmilnik izklopljen, je lahko izklopljen tudi signal na vratih Gl in G2 tranzistorjev Tri in Tr2, da čimbolj zmanjšamo mirovni tok. IPS-a Swl in Sw2 sta lahko krmiljena le, ko sta vklopljena tudi tranzistorja Tri in Tr2.The CE control electronics ensure that the signal at the gate Gl and G2 of the transistors Tri and Tr2 is not present when the battery polarity is reversed or if a single IPS Swl or Sw2 is defective or both. When the controller is switched off, the signal on the ports Gl and G2 of transistors Tri and Tr2 can also be switched off to minimize the resting current. Swl and Sw2 IPS can only be controlled when Tri and Tr2 transistors are switched on.

Za vklop tranzistorjev Tri in Tr2 potrebujemo signal, katerega najvišja napetost je višja od napajalne napetosti. V ta namen uporabimo charge-pump up vezje ali pa vezje, ki deluje na principu LED diode in foto celice, lahko uporabimo tudi kakšen drug zanesljiv vir napetosti za signal. Če uporabimo vezje s charge-pump up ali drug zanesljiv vir krmilne napetosti, rabimo še del vezja, ki poskrbi za hiter preklop tranzistorjev Tri in Tr2.To turn on the transistors Three and Tr2, we need a signal whose peak voltage is higher than the supply voltage. For this purpose we use a charge-pump up circuit or a circuit that operates on the principle of LEDs and photo cells, we can also use some other reliable source of voltage for the signal. If we use a charge-pump up circuit or other reliable source of control voltage, we also need a portion of the circuit to provide fast switching of the Tri and Tr2 transistors.

Krmilna napetost tranzistorjev Tri in Tr2 je omejena z zener diodo DZ. Tako zaščitimo IPS-je Swl in Sw2, plamensko čepno svečko in magnetni ventil pred kratkotrajno prenapetostjo.The control voltage of transistors Three and Tr2 is limited by the zener diode DZ. This protects IPSs Swl and Sw2, the flame plug and the solenoid valve against short-term overvoltage.

-7Napetost v napajalni točki Pl ne more biti višja od krmilne napetosti, ker ob previsoki napajalni napetosti tranzistor Tri deluje kot emitorski sledilnik.-7The voltage at the supply point Pl cannot be higher than the control voltage because, when the supply voltage is too high, transistor Three acts as an emitter follower.

Električno močnostno vezje za krmiljenje plamenske čepne svečke in magnetnega ventila v sistemu za hladen zagon diesel motorjev po izumu je torej značilno po tem, da vezje vsebuje dva tranzistorja (Tri, Tr2) z intrinsično diodo, vezana v serijo in dve IPS stikali (Swl, Sw2), pri čemer sta izvorna priključka (Sl, S2) tranzistorjev (Tri, Tr2) povezana skupaj, ponor (Dl) prvega tranzistorja (Tri) je vezan na napajalno napetost (Ubatt) akumulatorja ali altematorja, ponor (D2) drugega tranzistorja (Tr2) služi kot napajalna točka (Pl) prvega stikala (Swl) za plamensko čepno svečko (FGP) in drugega stikala (Sw2) za magnetni ventil (MV), ter je oboje vrat (Gl, G2) tranzistorjev (Tri, Tr2) vezanih skupaj in so priklopljena na signal iz krmilne elektronike (CE). Vezju je lahko vsakemu od tranzistorjev (Tri, Tr2) vezano nič, eden ali več dodatnih tranzistorjev vzporedno, iz napajalne točke (Pl) pa je lahko poleg stikal IPS za plamensko čepno svečko (FGP) in magnetni ventil (MV) vezano še nič, eden ali več dodatnih stikal IPS vzporedno ali kot dodatna stikala za dodatna električna bremena. Posamezni tranzistorji in stikala IPS so lahko združeni v posamezna ohišja ali pa so vgrajeni vsak v svoje ohišje. Celotno vezje omogoča izklop električnega toka v primeru obrnjene polaritete akumulatorja in v primeru okvare stikal IPS.The electrical power circuit for controlling the flame plug and the solenoid valve in the cold start system of diesel engines according to the invention is therefore characterized in that the circuit contains two transistors (Three, Tr2) with an intrinsic diode, connected in series and two IPS switches (Swl, Sw2), where the source terminals (Sl, S2) of the transistors (Three, Tr2) are connected together, the sink (Dl) of the first transistor (Three) is connected to the supply voltage (Ubatt) of the battery or the alternator, the sink (D2) of the second transistor ( Tr2) serves as the power point (Pl) of the first switch (Swl) for the flame plug (FGP) and the second switch (Sw2) for the solenoid valve (MV), and is connected to both the gate (Gl, G2) of the transistors (Three, Tr2) together and are connected to a signal from the control electronics (CE). Each transistor (Three, Tr2) may be connected to the circuit, one or more additional transistors in parallel, and from the supply point (Pl), in addition to the IPS switches, a flame plug (FGP) and a solenoid valve (MV) may be connected. one or more additional IPS switches in parallel or as additional switches for additional electrical loads. Individual transistors and IPS switches can be integrated into individual enclosures or incorporated into their respective enclosures. The entire circuit allows the power to be switched off in the event of a reverse polarity of the battery and in the event of a failure of the IPS switches.

Claims (4)

Patentni zahtevki:Claims: 1. Električno močnostno vezje za krmiljenje plamenske čepne svečke in magnetnega ventila v sistemu za hladen zagon diesel motorjev, pri čemer je sistem za hladni zagon diesel motorjev sestavljen iz akumulatorja in altematorja kot generatorja električne energije, krmilnika, motornega računalnika, plamenske čepne svečke, elektromagnetnega ventila, povezovalnih kablov ter cevk za dovod goriva pod tlakom, označeno s tem, da vezje vsebuje dva tranzistorja (Tri, Tr2) z intrinsično diodo, vezana v serijo in dve IPS stikali (Swl, Sw2), pri čemer sta izvorna priključka (Sl, S2) tranzistorjev (Tri, Tr2) povezana skupaj, ponor (Dl) prvega tranzistorja (Tri) je vezan na napajalno napetost (Ubatt) akumulatorja ali altematorja, ponor (D2) drugega tranzistorja (Tr2) služi kot napajalna točka (Pl) prvega stikala (Swl) za plamensko čepno svečko (FGP) in drugega stikala (Sw2) za magnetni ventil (MV), ter je oboje vrat (Gl, G2) tranzistorjev (Tri, Tr2) vezanih skupaj in so priklopljena na signal iz krmilne elektronike (CE).1. An electrical power circuit for controlling the flame plug and solenoid valve in a cold start diesel engine system, wherein the cold start diesel engine system consists of a battery and an alternator as an electricity generator, controller, motor computer, flame plug spark plug, electromagnetic valves, connecting cables and pressurized fuel lines, characterized in that the circuit contains two transistors (Three, Tr2) with an intrinsic diode, connected in series and two IPS switches (Swl, Sw2), with the source terminals (Sl , S2) of transistors (Three, Tr2) connected together, the sink (Dl) of the first transistor (Three) is connected to the supply voltage (Ubatt) of the battery or alternator, the sink (D2) of the second transistor (Tr2) serves as the supply point (Pl) of the first switches (Swl) for flame plug (FGP) and other switches (Sw2) for solenoid valve (MV), and both ports (Gl, G2) of transistors (Three, Tr2) are tied together and connected to a signal from control electronics (CE). 2. Vezje po zahtevku 1, označeno s tem, da lahko vsakemu od tranzistorjev (Tri, Tr2) vezano nič, eden ali več dodatnih tranzistorjev vzporedno, iz napajalne točke (Pl) pa je lahko poleg stikal IPS za plamensko čepno svečko (FGP) in magnetni ventil (MV) vezano še nič, eden ali več dodatnih stikal IPS vzporedno ali kot dodatna stikala za dodatna električna bremena.Circuit according to claim 1, characterized in that zero, one or more additional transistors can be connected in parallel to each of the transistors (Tri, Tr2), and from the power point (Pl) may be in addition to the flame plug plug (FGP) IPS switches and a solenoid valve (MV) tied to zero, one or more additional IPS switches in parallel or as additional switches for additional electrical loads. 3. Vezje po zahtevkih 1 in 2, označeno s tem, da so lahko posamezni tranzistorji in stikala IPS združeni v posamezna ohišja ali pa so vgrajeni vsak v svoje ohišje.A circuit according to claims 1 and 2, characterized in that the individual transistors and IPS switches can be integrated into individual housings or incorporated into each of their housings. 4. Vezje po predhodnih zahtevkih, označeno s tem, da celotno vezje pa omogoča izklop električnega toka v primeru obrnjene polaritete akumulatorja in v primeru okvare stikal IPS.Circuit according to the preceding claims, characterized in that the entire circuit allows the power to be switched off in the case of reversed battery polarity and in the event of a failure of the IPS switches.
SI200900386A 2009-12-18 2009-12-18 Power circuit for controlling the flame glowing plug and magnetic valve SI23247A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200900386A SI23247A (en) 2009-12-18 2009-12-18 Power circuit for controlling the flame glowing plug and magnetic valve
PCT/SI2010/000059 WO2011075089A1 (en) 2009-12-18 2010-10-25 Electrical power circuit for controlling the flame glow plug and the magnetic valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI200900386A SI23247A (en) 2009-12-18 2009-12-18 Power circuit for controlling the flame glowing plug and magnetic valve

Publications (1)

Publication Number Publication Date
SI23247A true SI23247A (en) 2011-06-30

Family

ID=43971297

Family Applications (1)

Application Number Title Priority Date Filing Date
SI200900386A SI23247A (en) 2009-12-18 2009-12-18 Power circuit for controlling the flame glowing plug and magnetic valve

Country Status (2)

Country Link
SI (1) SI23247A (en)
WO (1) WO2011075089A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6738847B2 (en) * 2018-03-13 2020-08-12 矢崎総業株式会社 Vehicle power supply system
CN109723594B (en) * 2018-12-27 2021-08-10 湖北超能农业装备有限公司 Engine cold start control circuit, control method, device and storage medium

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3835662A1 (en) * 1988-10-20 1990-04-26 Daimler Benz Ag Device for actuating inductive loads in a motor vehicle
DE4243959A1 (en) * 1992-12-23 1994-06-30 Beru Werk Ruprecht Gmbh Co A Flame start system for a combustion device
DE4432957C1 (en) * 1994-09-16 1996-04-04 Bosch Gmbh Robert Switching means
DE19548612B4 (en) * 1995-12-23 2005-10-06 Robert Bosch Gmbh Multi-circuit vehicle electrical system with an electronic analogue switch
DE19629928A1 (en) * 1996-07-24 1998-01-29 Beru Werk Ruprecht Gmbh Co A Method for operating a flame start system for an internal combustion engine and flame start system for an internal combustion engine
DE102005003682A1 (en) * 2005-01-26 2006-08-24 Siemens Ag Protection circuit in a power supply input of an electrical device and use of a protection circuit
US8003922B2 (en) * 2006-02-17 2011-08-23 Phillips & Temro Industries Inc. Solid state switch with over-temperature and over-current protection
DE102008001114A1 (en) * 2008-04-10 2009-10-15 Robert Bosch Gmbh Control circuit for heater plugs of vehicle for protection against polarity reversal, has switching unit provided for activating FET, so that current flow is released in directions of current path that corresponds to polarity of glow plug
DE102008052309A1 (en) * 2008-10-18 2010-04-22 Man Nutzfahrzeuge Aktiengesellschaft Flame start system and method for its control

Also Published As

Publication number Publication date
WO2011075089A1 (en) 2011-06-23

Similar Documents

Publication Publication Date Title
CN102047368B (en) Relay controller
CN102217078B (en) Solar module
CN102132479B (en) Power supply device and lighting device
JP4884089B2 (en) Power supply for vehicle
CN105705773B (en) Method and apparatus for the multiple-spark discharge ignition system for controlling internal combustion engine
WO2016104282A1 (en) Light source lighting circuit and turn signal lamp
US20100188051A1 (en) Secondary battery charging circuit
CN101790829A (en) Charging circuit, and battery pack and charging system equipped with same
CN105531156B (en) Supply unit
EP1959537A3 (en) Cogeneration system
KR20200053376A (en) Relay Switch device for turning on / off the large current of the battery pack
SI23247A (en) Power circuit for controlling the flame glowing plug and magnetic valve
CN107018594B (en) LED load protection method
JP2010213439A (en) System-cooperative inverter device
KR20200020920A (en) Ignition
CN104847560B (en) A kind of electronic relay, the starter with defencive function and its control method
CN109643737A (en) Solar energy module and electricity generation system
JP6569608B2 (en) Reverse connection protection circuit and fault detection method in reverse connection protection circuit
CN210111594U (en) Electrode reverse connection prevention circuit for vehicle storage battery
JP5764680B2 (en) Inrush current prevention device
CN202189110U (en) Air condition controller detecting device having reverse polarity protection circuit
CN201717841U (en) Novel electronic power switch of automobile starter
US20150116890A1 (en) Internal combustion engine ignition device
CN216795333U (en) Gas cogeneration of heat and power emergency lighting system
JP2015094269A (en) Dc/dc converter for ignition coil and on-vehicle ignition system

Legal Events

Date Code Title Description
OO00 Grant of patent

Effective date: 20110722

KO00 Lapse of patent

Effective date: 20170818