DE102006025920A1 - Internal-combustion engine`s fuel system controlling method, involves operating internal-combustion engine of vehicle with alcohol/petrol mixing fuels from fuel system, and using gaseous fuel as starting fuel during cold start of engine - Google Patents
Internal-combustion engine`s fuel system controlling method, involves operating internal-combustion engine of vehicle with alcohol/petrol mixing fuels from fuel system, and using gaseous fuel as starting fuel during cold start of engine Download PDFInfo
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- DE102006025920A1 DE102006025920A1 DE102006025920A DE102006025920A DE102006025920A1 DE 102006025920 A1 DE102006025920 A1 DE 102006025920A1 DE 102006025920 A DE102006025920 A DE 102006025920A DE 102006025920 A DE102006025920 A DE 102006025920A DE 102006025920 A1 DE102006025920 A1 DE 102006025920A1
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- fuel
- combustion engine
- alcohol
- internal combustion
- starting
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Classifications
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
- F02D19/0628—Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position
- F02D19/0631—Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position by estimation, i.e. without using direct measurements of a corresponding sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0697—Arrangement of fuel supply systems on engines or vehicle bodies; Components of the fuel supply system being combined with another device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
- F02D19/084—Blends of gasoline and alcohols, e.g. E85
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
- F02D19/085—Control based on the fuel type or composition
- F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- 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
- F02N19/001—Arrangements thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/026—Measuring or estimating parameters related to the fuel supply system
- F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Steuern des Kraftstoffsystems einer mit Alkohol oder Alkoholmischkraftstoffen betreibbaren Brennkraftmaschine gemäß dem Oberbegriff des Patentanspruches 1.The The invention relates to a method and a device for controlling of the fuel system one with alcohol or alcohol blended fuels operable internal combustion engine according to the preamble of claim 1.
Es sind Fahrzeuge bekannt, welche mit Alkohol oder Alkoholmischkraftstoffen, d.h. mit Kraftstoffen mit variablen Alkoholgehalten sowie mit Benzin betrieben werden können. Der Alkohol, z.B. Ethanol oder Methanol im Kraftstoff kann dabei in unterschiedlichen Anteilen im Bereich von 0 bis 100 % vorhanden sein. Solche Kraftstoffe bezeichnet man auch als "Flex Fuel" oder "Flexibel Fuel" (FF) und die damit betreibbaren Kraftfahrzeuge als Flexibel Fuel Vehicle (FFV). Gebräuchliche Alkoholmischungen sind beispielsweise M85, d.h. 85 % Methanol im Kraftstoff und E85, d.h. 85 % Ethanol im Kraftstoff, bei welchen der Benzinanteil folglich jeweils etwa 15 % beträgt.It vehicles are known which are mixed with alcohol or mixed alcohol fuels, i.e. operated with fuels with variable alcohol contents as well as gasoline can be. The alcohol, e.g. Ethanol or methanol in the fuel can do this present in varying proportions in the range of 0 to 100% be. Such fuels are also referred to as "flex fuel" or "flexible fuel" (FF) and the operable with it Motor vehicles as a flexible fuel vehicle (FFV). common Alcohol mixtures are for example M85, i. 85% methanol in Fuel and E85, i. 85% ethanol in the fuel, in which the Gasoline is therefore each about 15%.
Der Einsatz von solchen Mischkraftstoffen mit hohem Alkoholgehalt hat den Nachteil, dass sich das Fahrzeug bei niedrigen Temperaturen nur schwer starten lässt, da Alkohol bei niedrigen Temperaturen sehr schlecht verdampft. Bei Fahrzeugen, die mit 100 % Ethanol betankt wurden, ist deshalb ein Start unter 0°C beinahe nicht mehr möglich. Da somit ohne besondere Vorkehrungen Kaltstartprobleme auftreten, werden bei Fahrzeugen, die einen Betrieb mit 100 % Alkohol als Kraftstoff zulassen, kleine, fest eingebaute Kraftstoffzusatzbehälter mitgeführt, die eine geringe Menge an Startkraftstoff, z.B. Benzin beinhalten. Zum Starten des Fahrzeuges unterhalb bestimmter Außentemperaturen wird dann das Benzin als Startkraftstoff benutzt oder zusätzlich zu dem Alkohol eingespritzt, damit ein brennbares Gemisch entsteht. Das Problem hierbei besteht allerdings darin, dass bei einem Kaltstart immer nur sehr ge ringe Mengen von Kraftstoff dem zusätzlichen, den Startkraftstoff enthaltenden Behälter entnommen werden und im Laufe der Zeit dieser Startkraftstoff immer schlechter wird. Unter "schlechter" versteht man in diesem Zusammenhang, dass die leicht flüchtigen Kohlenwasserstoffanteile wie Propan und Butan, durch die hohen Temperaturen im Motorraum während des Betriebes der Brennkraftmaschine und damit des Fahrzeugs, sowie durch das starke Schütteln des Fahrzeugs im Betrieb leicht verdampfen und aus dem Zusatzbehälter entweichen. Die für einen Kaltstart notwendigen Bestandteile sind dann verloren oder zumindest erheblich reduziert. Unter Umständen kann dann kein Kaltstart mehr durchgeführt werden.Of the Use of such mixed fuels with high alcohol content the disadvantage that the vehicle is at low temperatures difficult to start, because alcohol evaporates very poorly at low temperatures. at Vehicles refueled with 100% ethanol are therefore a start below 0 ° C almost impossible. Since thus cold start problems occur without special precautions, be used on vehicles that operate with 100% alcohol as fuel allow small, built-in fuel additive container carried, the one small amount of starting fuel, e.g. Include gasoline. To start of the vehicle below certain outside temperatures then becomes the Gasoline used as starting fuel or injected in addition to the alcohol, so that a combustible mixture is formed. The problem here is However, the fact that in a cold start always very small amounts of fuel the additional, taken from the starting fuel containing container and in Over time, this starting fuel gets worse and worse. By "bad" one understands in this Related to that, the volatile hydrocarbon content like propane and butane, due to the high temperatures in the engine compartment while the operation of the internal combustion engine and thus of the vehicle, as well by the strong shaking of the Evaporate the vehicle slightly during operation and escape from the auxiliary reservoir. The for A cold start necessary components are then lost or at least significantly reduced. Under certain circumstances, then no cold start more performed become.
In
den Druckschriften
In
der
Aus der DE-OS 25 36 432 ist eine Brennkraftmaschine bekannt, die mit Alkohol und Alkohol-Mischkraftstoffen betreibbar ist und bei welcher in einem eine Hauptgemischbildungseinrichtung umgehenden Nebenansaugkanal eine Kaltstarteinrichtung mit einer elektrisch betriebenen Heizvorrichtung vorgesehen ist. Die nötige Luft für das Kaltstartgemisch wird vom Hauptluftansaugkanal abgezweigt, wobei die Strömungsverbindung durch eine Absperrvorrichtung unterbrochen werden kann. Durch die Aufwärmung des Kraftstoff-Luft-Gemisches wird die Startfreudigkeit der Brennkraftmaschine bei niedrigen Umgebungstemperaturen verbessert.Out DE-OS 25 36 432 an internal combustion engine is known which with Alcohol and alcohol blending fuels is operable and in which in a secondary intake passage bypassing a main mixing means a cold start device with an electrically operated heater is provided. The necessary Air for the cold start mixture is diverted from the main air intake duct, wherein the flow connection can be interrupted by a shut-off device. By the warming the fuel-air mixture is the starting ability of the internal combustion engine improved at low ambient temperatures.
Aus der JP-A-52 665/1982 ist eine Heizeinrichtung zum Erwärmen einer Einlassleitung bekannt, wobei die Heizeinrichtung nach Maßgabe des Ausgangs eines Alkoholkonzentrationssensors gesteuert wird und bei der die Wärmeerzeugungsmenge der Heizeinrichtung größer wird, wenn die Alkoholkonzentration einen Bezugswert einnimmt oder größer als dieser ist.Out JP-A-52 665/1982 is a heater for heating a Inlet line known, the heater according to the output an alcohol concentration sensor is controlled and in which the Heat generation amount the heater gets bigger, if the alcohol concentration is a reference or greater than This is.
Die Aufgabe der Erfindung liegt darin, ein Verfahren und eine Vorrichtung zum Steuern des Kraftstoffsystems einer mit Alkohol oder Alkoholmischkraftstoffen betreibbaren Brennkraftmaschine anzugeben, das auch bei sehr hohen Alkoholanteilen einen Start bei niedrigen Temperaturen sicherstellt.The object of the invention is a method and a device for controlling the fuel system of an operable with alcohol or alcohol blended fuels internal combustion engine indicate that even at very high alcohol content ensures a start at low temperatures.
Diese Aufgabe wird gemäß den Merkmalen der unabhängigen Patentansprüche gelöst. Vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.These Task is performed according to the characteristics of independent claims solved. Advantageous developments and refinements of the invention are in the subclaims characterized.
Die Erfindung zeichnet sich aus durch ein Verfahren und eine entsprechende Vorrichtung zum Steuern des Kraftstoffsystems einer mit Alkohol oder Alkohol/Benzinmischkraftstoffen betreibbaren Brennkraftmaschine mit einem Vorratsbehälter für den Alkohol oder Alkohol/Benzinmischkraftstoff und einem Vorratsbehälter für einen Startkraftstoff, welcher eine hinreichende Entzündlichkeit aufweist, um bei Kaltstarts der Brennkraftmaschine eingesetzt zu werden. Als Startkraftstoff wird dabei gasförmiger Brennstoff verwendet. Dies hat den Vorteil, dass ein Start der Brennkraftmaschine auch bei sehr hohen Alkoholanteilen im Hauptkraftstoff und gleichzeitig niedrigen Außentemperaturen ein sicherer Start der Brennkraftmaschine gewährleistet ist.The Invention is characterized by a method and a corresponding Device for controlling the fuel system one with alcohol or alcohol / gasoline mixed fuel operable internal combustion engine with a storage container for the Alcohol or alcohol / gasoline mixed fuel and a reservoir for one Starting fuel, which has a sufficient flammability to at Cold starts the internal combustion engine to be used. As a starting fuel becomes more gaseous Used fuel. This has the advantage that a start of the internal combustion engine even with very high alcohol contents in the main fuel and at the same time low outside temperatures a safe start of the internal combustion engine is guaranteed.
Besonders vorteilhaft ist es, wenn als gasförmiger Brennstoff Butan, Propan oder ein Propan/Butangemisch verwendet wird, der in handelsüblichen, austauschbaren, metallischen Einweg-Gaskartuschen gespeichert ist, da diese überall im Handel kostengünstig erhältlich sind und darüber hinaus eine klar definierte Spezifikation aufweisen.Especially It is advantageous if, as the gaseous fuel, butane, propane or a propane / butane mixture used in commercial, interchangeable, disposable metal gas cartridges is stored, since these everywhere inexpensive in trade available are and above have a clearly defined specification.
Des Weiteren hat die Verwendung von solchen herkömmlichen Gaskartuschen als Vorratsbehälter für den Startkraftstoff den Vorteil, dass sie bei Bedarf leicht ausgewechselt werden können.Of Further, the use of such conventional gas cartridges as reservoir for the Starting fuel the advantage that they easily replaced if necessary can be.
Über die Spezifikation des gasförmigen Brennstoffes, des Rohrleitungssystems zwischen der Gaskartusche und der Einblasestelle im Saugrohr und dem Querschnitt der Einblasedüse lässt sich die benötigte Kraftstoffmenge leicht dosieren.About the Specification of gaseous fuel, the piping system between the gas cartridge and the Einblasestelle In the intake manifold and the cross section of the injection nozzle can be the required amount of fuel easy to dose.
Die Zumessung des gasförmigen Brennstoffes lässt sich auf einfache Weise durch Öffnen eines über Signale einer Steuerungseinrichtung elektrisch betätigten Absperrventils erreichen.The Metering of the gaseous Fuel leaves in a simple way by opening one over Signals of a control device electrically operated shut-off valve to reach.
Eine leichte Auswechselbarkeit des Vorratsbehälters ergibt sich, wenn dieser an einer für den Fahrer des mit der Brenn kraftmaschine ausgestatteten Fahrzeuges leicht zugänglichen Stelle im Fahrzeug innerhalb einer Aufnahmevorrichtung angeordnet und mittels einer Befestigungsvorrichtung arretiert ist.A easy replaceability of the reservoir results when this at one for the driver of the equipped with the internal combustion engine vehicle easily accessible Position arranged in the vehicle within a recording device and locked by means of a fastening device.
Besonders vorteilhaft ist es, wenn die Aufnahmevorrichtung einen Adapter aufweist, der zum Anschluss von Schraubkartuschen, Ventilkartuschen oder Stechkartuschen ausgebildet ist. Damit lassen sich Gaskartuschen mit unterschiedlichen Anschlussmechanismen verwenden.Especially It is advantageous if the receiving device has an adapter, for connecting screw cartridges, valve cartridges or piercing cartridges is trained. This allows gas cartridges with different Use connection mechanisms.
Durch Vorsehen einer, der crashsicheren Aufnahmevorrichtung zugeordneten Sicherheitsarmatur, welche ein mechanisches Überdruckventil und eine Schmelzsicherung aufweist und die im Falle einer Gefahr den Brennstoff zu einer sicheren Stelle im Fahrzeug leitet ist gewährleistet, dass auch bei unvorhergesehenen Ereignissen wie Unfällen oder Bränden kein Schaden entstehen kann.By Providing a, the crash-safe recording device associated Safety fitting, which is a mechanical pressure relief valve and a fuse and, in the event of a hazard, make the fuel a safe fuel Heading in the vehicle is guaranteed that even in the event of unforeseen circumstances Events like accidents or fires no damage can occur.
Durch die Verwendung einer einfachen Gaszuführleitung welche von dem Adapter zu dem Ansaugtrakt der Brennkraftmaschine führt und an deren Ende eine Gaseinblasedüse mit konstantem Öffnungsquerschnitt angeordnet ist und in die ein elektrisch steuerbares Absperrventil zum Dosieren des Brennstoffes geschaltet ist, ergibt sich eine einfache, nur wenige Bauteile umfassende Anordnung, die darüber hinaus wenig bis gar keine Wartung beansprucht.By the use of a simple gas supply line which from the adapter leads to the intake of the engine and at the end of a Gaseinblasedüse with constant opening cross section is arranged and in the an electrically controllable shut-off valve connected to dosing the fuel, there is a simple, only few component comprehensive arrangement, which in addition little to none Maintenance claimed.
Ein Ausführungsbeispiel der Erfindung wird im Folgenden anhand der schematischen Zeichnung näher erläutert.One embodiment The invention is explained in more detail below with reference to the schematic drawing.
Die
einzige Figur zeigt in schematischer Darstellung eine für sowohl
mit Benzin oder mit Alkohol als auch mit beliebigen Mischungsverhältnis dieser Kraftstoffe
betreibbare Brennkraftmaschine
Der
Brennkraftmaschine
Der
Ansaugtrakt
Nach
der Verbrennung strömt
das Abgas über
den Abgastrakt
Um
einen Start der Brennkraftmaschine
Hierzu
ist im Fahrzeug eine, vom Fahrer des Fahrzeuges leicht zugängliche,
crashsichere Aufnahmevorrichtung
Als
Startkraftstoff, auch als Hilfskraftstoff zum Starten bezeichnet,
dient gasförmiger
Brennstoff, der in handelsüblichen
und austauschbaren metallischen Einweg-Gaskartuschen gespeichert
ist und die in der Regel zum Betrieb von tragbaren Geräten dienen,
insbesondere im Camping Bereich. Solche Gaskartuschen für Flüssiggas
können
entweder Butan, Propan oder ein Propan/Butanmix enthalten und sind
beispielsweise nach der DIN EN 417 genormt. Solche herkömmlichen
Gaskartuschen weisen eine Gasmenge von 190, 370, 500 oder 900 gr. auf.
Zum Anschluss der Gaskartuschen ist an der Aufnahmevorrichtung
Bei
Stechkartuschen wird die Gasversorgung erreicht durch Anstechen
der Kartusche mittels einer besonderen Vorrichtung, die Teil des
Adapters
Die
Gaszuführleitung
Zwischen
Adapter
Um
zu entscheiden, ob ein Kaltstart der Brennkraftmaschine
Der
Druck in der Gaskartusche ist stark von der Temperatur des Gases
abhängig.
Da die Temperatur bei einem Kaltstart der Brennkraftmaschine nach
langer Abstellzeit annähernd
der Temperatur der Brennkraftmaschine entspricht, lässt sich
damit der Druck in der Gaskartusche mit genügend großer Genauigkeit abschätzen. Damit
aber lässt
sich bei konstantem Querschnitt der Gaseinblasedüse
Eine
weitere Möglichkeit
zur Bestimmung des Gasstromes besteht darin, den Druck mit Hilfe
eines Sensors
Zum
Steuern und Regeln der Brennkraftmaschine
Die
Sensoren sind beispielsweise der Temperatursensor
Die
Stellglieder sind beispielsweise die Drosselklappe
Die
Steuerungseinrichtung
Unter
anderem ermittelt die Steuerungseinrichtung
Soll
die Brennkraftmaschine
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102006025920A DE102006025920A1 (en) | 2006-06-02 | 2006-06-02 | Internal-combustion engine`s fuel system controlling method, involves operating internal-combustion engine of vehicle with alcohol/petrol mixing fuels from fuel system, and using gaseous fuel as starting fuel during cold start of engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006025920A DE102006025920A1 (en) | 2006-06-02 | 2006-06-02 | Internal-combustion engine`s fuel system controlling method, involves operating internal-combustion engine of vehicle with alcohol/petrol mixing fuels from fuel system, and using gaseous fuel as starting fuel during cold start of engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006025920A1 true DE102006025920A1 (en) | 2007-12-06 |
Family
ID=38650510
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DE102006025920A Ceased DE102006025920A1 (en) | 2006-06-02 | 2006-06-02 | Internal-combustion engine`s fuel system controlling method, involves operating internal-combustion engine of vehicle with alcohol/petrol mixing fuels from fuel system, and using gaseous fuel as starting fuel during cold start of engine |
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Country | Link |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2930297A1 (en) * | 2008-04-18 | 2009-10-23 | Gennaro Antoine Di | DEVICE FOR GAS SUPPLYING A VEHICLE LIQUEFIED PETROLEUM GAS RESERVOIR FOR USE ON STARTING THE ENGINE. |
FR2937381A1 (en) * | 2008-10-22 | 2010-04-23 | Peugeot Citroen Automobiles Sa | METHOD FOR STARTING A COMBUSTION ENGINE SUPPLIED BY A FUEL CONTAINING ETHANOL |
DE102009037294A1 (en) | 2009-08-14 | 2011-02-17 | Fev Motorentechnik Gmbh | Method for starting multi-cylinder direct injecting internal combustion engine with group-wise independently controllable injection valves in the cylinders, involves providing fuel from injection pump through fuel rail |
FR2965860A1 (en) * | 2010-10-11 | 2012-04-13 | Peugeot Citroen Automobiles Sa | Method for operating heat engine of motor vehicle according to set of adjustments, involves determining adjustment of engine according to temperature values relating to temperature of outer air and temperature of coolant |
ITBO20110027A1 (en) * | 2011-01-27 | 2012-07-28 | Marco Ciaccini | POWER SUPPLY SYSTEM FOR ENDOTHERMIC MOTORS USING LIQUEFIED PETROLEUM GAS (LPG) |
FR3001769A3 (en) * | 2013-02-05 | 2014-08-08 | Renault Sa | Fuel supply device for internal combustion engine, has cold start system to feed input of principal distribution slope with fuel that is of different nature from main fuel i.e. petrol, so as to form mixture between main fuel and fuel |
CN104074658A (en) * | 2013-03-28 | 2014-10-01 | 比亚迪股份有限公司 | Automobile and start control method and start control system of automobile engine |
WO2016062554A1 (en) | 2014-10-21 | 2016-04-28 | Fev Gmbh | Method for operating a spark-ignition, direct-injection internal combustion engine |
DE102008042514B4 (en) | 2008-09-30 | 2019-08-14 | Robert Bosch Gmbh | Method and control device for starting an internal combustion engine |
DE102022125529A1 (en) | 2022-10-04 | 2024-04-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method and injection system for reducing raw exhaust emissions during a cold start of an internal combustion engine |
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Cited By (13)
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WO2009141512A1 (en) * | 2008-04-18 | 2009-11-26 | Antoine Di Gennaro | Device for bleeding gas from a vehicle liquefied petroleum gas tank to use it to start the engine |
FR2930297A1 (en) * | 2008-04-18 | 2009-10-23 | Gennaro Antoine Di | DEVICE FOR GAS SUPPLYING A VEHICLE LIQUEFIED PETROLEUM GAS RESERVOIR FOR USE ON STARTING THE ENGINE. |
DE102008042514B4 (en) | 2008-09-30 | 2019-08-14 | Robert Bosch Gmbh | Method and control device for starting an internal combustion engine |
FR2937381A1 (en) * | 2008-10-22 | 2010-04-23 | Peugeot Citroen Automobiles Sa | METHOD FOR STARTING A COMBUSTION ENGINE SUPPLIED BY A FUEL CONTAINING ETHANOL |
WO2010046574A1 (en) * | 2008-10-22 | 2010-04-29 | Peugeot Citroën Automobiles SA | Method for starting a combustion engine supplied with a fuel containing ethanol |
DE102009037294A1 (en) | 2009-08-14 | 2011-02-17 | Fev Motorentechnik Gmbh | Method for starting multi-cylinder direct injecting internal combustion engine with group-wise independently controllable injection valves in the cylinders, involves providing fuel from injection pump through fuel rail |
FR2965860A1 (en) * | 2010-10-11 | 2012-04-13 | Peugeot Citroen Automobiles Sa | Method for operating heat engine of motor vehicle according to set of adjustments, involves determining adjustment of engine according to temperature values relating to temperature of outer air and temperature of coolant |
ITBO20110027A1 (en) * | 2011-01-27 | 2012-07-28 | Marco Ciaccini | POWER SUPPLY SYSTEM FOR ENDOTHERMIC MOTORS USING LIQUEFIED PETROLEUM GAS (LPG) |
WO2012101596A1 (en) * | 2011-01-27 | 2012-08-02 | Brum S.R.L. | System for the supply of internal combustion engines by means of liquified petroleum gas |
FR3001769A3 (en) * | 2013-02-05 | 2014-08-08 | Renault Sa | Fuel supply device for internal combustion engine, has cold start system to feed input of principal distribution slope with fuel that is of different nature from main fuel i.e. petrol, so as to form mixture between main fuel and fuel |
CN104074658A (en) * | 2013-03-28 | 2014-10-01 | 比亚迪股份有限公司 | Automobile and start control method and start control system of automobile engine |
WO2016062554A1 (en) | 2014-10-21 | 2016-04-28 | Fev Gmbh | Method for operating a spark-ignition, direct-injection internal combustion engine |
DE102022125529A1 (en) | 2022-10-04 | 2024-04-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method and injection system for reducing raw exhaust emissions during a cold start of an internal combustion engine |
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