DE10323787A1 - Engine control system - Google Patents
Engine control system Download PDFInfo
- Publication number
- DE10323787A1 DE10323787A1 DE10323787A DE10323787A DE10323787A1 DE 10323787 A1 DE10323787 A1 DE 10323787A1 DE 10323787 A DE10323787 A DE 10323787A DE 10323787 A DE10323787 A DE 10323787A DE 10323787 A1 DE10323787 A1 DE 10323787A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- control system
- engine control
- sensor
- alcohol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2409—Addressing techniques specially adapted therefor
- F02D41/2422—Selective use of one or more tables
-
- 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
- F02D19/088—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels 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
- 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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2409—Addressing techniques specially adapted therefor
- F02D41/2416—Interpolation techniques
-
- 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
- F02B2201/00—Fuels
- F02B2201/06—Dual fuel applications
- F02B2201/062—Liquid and liquid
-
- 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
- F02D19/066—Retrofit of secondary fuel supply systems; Conversion of engines to operate on multiple fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0611—Fuel type, fuel composition or fuel quality
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Die Erfindung bezieht sich auf ein Motorsteuersystem für die Automobilindustrie, entwickelt, um den Fahrzeugmotor schnell an die Art des zugeführten Brennstoffs anzupassen: DOLLAR A Benzin/Benzin plus Alkoholmischung/Alkohol. DOLLAR A Das System enthält ein konventionelles Motorsteuersystem (1), einen Softwarelogik-Sensor (100), auf welchem das konventionelle Motorsteuersystem basiert und das in der Lage ist, den Alkoholanteil in der in dem Fahrzeug verwendeten Brennstoffmischung einzubringen, und zwar von einem Benzingehalt mit 0% Alkohol bis 100 hydriertem und anhydriertem Alkohol, und das das Verhalten des konventionellen Motorsteuersystems (1) im Hinblick auf die festgestellte Brennstoffzusammensetzung schnell einstellen kann, und eine Lambda-Sonde (31), in Beziehung zu dem konventionellen Motorsteuersystem (1), die den Abgaskreis (39) der von der Sauerstoffverbrennung auftretenden Gase überwacht, um die Mischungsschwankung zu schlussfolgern, und zwar durch den Softwarelogik-Sensor (100) durch Bestimmung des prozentualen Alkoholgehalts in der Mischung.The invention relates to an engine control system for the automotive industry designed to quickly adapt the vehicle engine to the type of fuel supplied: DOLLAR A gasoline / gasoline plus alcohol mixture / alcohol. DOLLAR A The system contains a conventional engine control system (1), a software logic sensor (100) on which the conventional engine control system is based and which is able to incorporate the alcohol content in the fuel mixture used in the vehicle, with a gasoline content 0% alcohol to 100 hydrogenated and anhydrous alcohol, and which can quickly adjust the behavior of the conventional engine control system (1) in view of the fuel composition found, and a lambda probe (31), in relation to the conventional engine control system (1), which monitors the exhaust circuit (39) of the gases from the oxygen combustion to infer the mixture variation by the software logic sensor (100) by determining the percentage alcohol in the mixture.
Description
Die Erfindung bezieht sich auf ein Motorsteuersystem im Bereich der Automobilindustrie und wurde entwickelt, um einen Fahrzeugmotor mit unmittelbarer Einstellung auf die Art des zugeführten Brennstoffs zu schaffen, nämlich ob Benzin oder Alkohol oder eine Mischung beider vorliegt.The invention relates to a Engine control system in the automotive industry and was developed a vehicle engine with an immediate adjustment to Art of the fed To create fuel, namely whether gasoline or alcohol or a mixture of both is present.
Die zur Zeit benutzten Brennstoffeinspritzsysteme bei Fahrzeugmotoren stellen elektronische Systeme dar und sind gewöhnlich für den Betrieb von Motoren mit Alkohol oder Benzin vorgesehen.The fuel injection systems currently in use in vehicle engines are electronic systems and are usually operational provided by engines with alcohol or petrol.
Aus vielerlei Gründen wie Preis und/oder Vertrieb und/oder andere, den Brennstoff (Alkohol oder Benzin) betreffende Gründe wurde die Wahl zwischen einem oder dem anderen Brennstoffsystem empfohlen.For many reasons such as price and / or sales and / or others related to fuel (alcohol or gasoline) reasons became the choice between one or the other fuel system recommended.
Trotzdem wurde eine überall geeignete Lösung hinsichtlich dieser neuen Anforderung an zugeführten Brennstoff für automobile Fahrzeuge noch nicht entwickelt.Nevertheless, it became a suitable one everywhere solution regarding this new requirement for supplied fuel for automobiles Vehicles not yet developed.
Deshalb bezweckt die Erfindung, ein Motorsteuersystem zu schaffen, das in der Lage ist, die Mischung von Brennstoffen in dem Tank zu identifizieren, die Betriebsparameter an verschiedenen Punkten der Fahrzeugmechanik festzustellen, unmittelbar den Betrieb im Hinblick auf den Brennstoff und die Parameter einzustellen, den guten Betrieb des Fahrzeugs aufrechtzuerhalten und von der Anwendung eines zusätzlichen physikalischen Sensors sowie von Modifikationen in dem Einspritzsystem für gewöhnliche Brennstoffe abzusehen.Therefore, the invention aims to To create engine control system that is able to mix the Fuels in the tank to identify the operating parameters immediately at various points in vehicle mechanics discontinue operation in terms of fuel and parameters, Maintain good vehicle operation and use an additional physical sensor as well as modifications in the injection system for ordinary Foreseen fuels.
Basierend auf diese Situation und in Hinblick auf deren Überwindung sowie Erfüllung der angegebenen Zwecke wurde deshalb ein Motorsteuersystem entwickelt, deren Ausbildung, Betrieb und Vorteile nachfolgend anhand der beigefügten Zeichnungen beschrieben werden.Based on this situation and in terms of overcoming them as well as fulfillment An engine control system was therefore developed for the stated purposes, their training, operation and advantages below with reference to the accompanying drawings to be discribed.
Dabei zeigt:It shows:
Gemäß den in den Figuren dargestellten Illustrationen dient das Motorsteuersystem zur Feststellung der Brennstoffmischung (Benzin/Benzin + Alkohol/Alkohol) in dem Fahrzeugtank.According to those shown in the figures The engine control system is used to determine the illustrations Fuel mixture (petrol / petrol + alcohol / alcohol) in the vehicle tank.
Die Betriebsbedingungen des Motors werden festgestellt: Geschwindigkeit, absoluter Druck, Drosselventilstellung, Zündphase, Lufttemperatur, Drehzahl, Klopfen, Wassertemperatur und andere Parameter, wie sie von Sensoren geliefert werden, welche die verschiedenen Stellen der Fahrzeugmechanik überwachen. Das System ist ferner dafür gebaut, die richtige Brennstoffinjektion zu liefern, basierend auf der Art des Brennstoffes und den von den Sensoren gelieferten Betriebsparametern, so dass das Betriebsverhalten des Fahrzeugs auch mit einem anderen Brennstoff aufrechterhalten werden kann, wobei die von den Sensoren gelieferten Betriebsparameter berücksichtigt werden. Das System soll ferner derartige Funktionen ausführen, ohne Anwendung eines zusätzliche physikalischen Sensors in einem konventionellen elektronischen Einspritzsystem.The operating conditions of the engine are determined: speed, absolute pressure, throttle valve position, ignition phase, Air temperature, speed, knock, water temperature and other parameters, as they are delivered by sensors which the different Monitor locations of vehicle mechanics. The System is also for it built to deliver the right fuel injection based on the type of fuel and the operating parameters provided by the sensors, so the operating behavior of the vehicle even with a different fuel can be maintained, with those provided by the sensors Operating parameters taken into account become. The system is also intended to perform such functions without application an additional physical sensor in a conventional electronic injection system.
Das Motorsteuersystem besteht deshalb
basismäßig aus
einem konventionellen Motorsteuersystem
Das Motorsteuersystem umfasst zusätzlich einen
logischen Software-Sensor SFS
Software, die
hauptsächlich
eine Routine zur Auswahl des Kennfeldes des Motorbetriebs umfasst,
das für
die Brennstoffmischung in dem Tank am besten geeignet ist, und zwar
basierend auf einer geeigneten Interpretation der von der Lambda-Sonde
dabei setzt der Sensor SFS
Software primarily comprising a routine for selecting the engine operating map that best suits the fuel mixture in the tank based on an appropriate interpretation of that from the lambda probe
the SFS sensor sets
Zusammenfassend arbeitet das konventionelle
Motorsteuersystem
Der logische Software-Sensor SFS
- 1. Empfang der Information hinsichtlich des
variierenden Alkoholanteils, basierend auf der Brennstoffverbrennung,
wie durch die Lambda-Sondo
31 geliefert, ferner Information über die Motorbetriebsparameter (Geschwindigkeit, absoluter Druck, Drosselventilstellung, Zündphase, Lufttemperatur, Drehzahl, Klopfen, Wassertemperatur) wie durch die Sensoren geliefert. - 2. Verarbeitung der Information über die Änderung des Alkoholanteils in der Mischung basierend auf dem Prinzip, dass Alkohol ein stoichiometrisches Verhältnis A/F unterschiedlich von dem von Benzin aufweist und der Information über die Motorbetriebsparameter.
- 3. Basierend auf solcher Verarbeitung, Wahl der geeignetsten Kennlinienfelder für die Mischung und Interpolation solcher Information mit der Information über die Motorbetriebsparameter, wie von den Sensoren geliefert.
- 4. Bestimmung der Einspritzzeit Tj basierend auf der Brennstoffmischung und der Information über die Betriebsparameter, wie von den Sensoren geliefert, und zwar im Hinblick auf Aufrechterhaltung eines optimalen Betriebs des Fahrzeugs.
- 1. Receiving the information regarding the varying alcohol content based on the fuel combustion as by the Lambda-Sondo
31 supplied, further information about the engine operating parameters (speed, absolute pressure, throttle valve position, ignition phase, air temperature, speed, knock, water temperature) as supplied by the sensors. - 2. Processing the information on the change in the alcohol content in the mixture based on the principle that alcohol has a stoichiometric ratio A / F different from that of gasoline and the information on the engine operating parameters.
- 3. Based on such processing, selection of the most suitable characteristic fields for the mixing and interpolation of such information with the information about the engine operating parameters, as supplied by the sensors.
- 4. Determination of the injection time Tj based on the fuel mixture and the information about the operating parameters as supplied by the sensors, with a view to maintaining optimal operation of the vehicle.
Die Lambda-Sonde
Das Blockdiagramm der beigefügten
Gleichungenequations
Einspritzzeit-Gleichungen Injection time equations
SFS Algorithmus SFS algorithm
A/F Kalkulation A / F calculation
Zündungvorverstellung Zündungvorverstellung
Gemäß der obigen grundlegenden Konzeption wird der beansprucht, dass das Steuersystem Modifikationen hinsichtlich Material, Abmessungen und Ausbildungsdetails aufweisen kann, ohne den Schutzbereich der Erfindung zu verlassen.According to the basic above Conceptualization is claimed that the control system modifications with regard to material, dimensions and training details can without departing from the scope of the invention.
- 11
- Blockdiagrammblock diagram
- 22
- RPMRPM
- 33
- MAP (Kennwerte)MAP (Characteristic values)
- 44
- Modell der Ansaugungmodel the suction
- 55
- QacQac
- 66
- QcombQcomb
- 77
- Modell der Einspritzungmodel the injection
- 88th
- TinjTinj
- 99
- A/F (der Verhältnis von Alkohol zu Brennstoff)A / F (the ratio from alcohol to fuel)
- 1010
- A/F der MischungA / F the mixture
- 1111
- A/F (der Verhältnis von Alkohol zu Brennstoff)A / F (the ratio from alcohol to fuel)
- 1212
- RPMRPM
- 1313
- MAP (Kennwerte)MAP (Characteristic values)
- 1414
- Vorverstellen-BasisVorverstellen base
- 1515
- VorverstellenVorverstellen
- 1616
- Motorengine
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0202226-5A BR0202226C1 (en) | 2002-05-24 | 2002-05-24 | Engine control system |
BR0202226-5 | 2002-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10323787A1 true DE10323787A1 (en) | 2004-02-12 |
Family
ID=29408930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10323787A Withdrawn DE10323787A1 (en) | 2002-05-24 | 2003-05-23 | Engine control system |
Country Status (3)
Country | Link |
---|---|
BR (1) | BR0202226C1 (en) |
DE (1) | DE10323787A1 (en) |
FR (1) | FR2840028A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0501038A (en) * | 2005-03-28 | 2006-11-28 | Magneti Marelli Controle Motor | system to detect fuel evaporated by the crankcase (blow-by) |
FR2892769B1 (en) * | 2005-11-03 | 2007-12-14 | Renault Sas | STRATEGY FOR RECOGNIZING EXOTIC FUEL RATES IN THE MAIN TANK |
DE102008043697A1 (en) * | 2008-01-25 | 2009-07-30 | Robert Bosch Gmbh | Method and device for determining the composition of a fuel mixture |
-
2002
- 2002-05-24 BR BR0202226-5A patent/BR0202226C1/en active IP Right Grant
-
2003
- 2003-05-23 DE DE10323787A patent/DE10323787A1/en not_active Withdrawn
- 2003-05-26 FR FR0306310A patent/FR2840028A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
BR0202226C1 (en) | 2005-10-11 |
FR2840028A1 (en) | 2003-11-28 |
BR0202226A (en) | 2004-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |