DE102010041519B3 - Method for stoppage of diesel internal combustion engine, involves stopping multiple intake valves or exhaust valves after deactivation request and during phasing out of diesel internal combustion engine - Google Patents
Method for stoppage of diesel internal combustion engine, involves stopping multiple intake valves or exhaust valves after deactivation request and during phasing out of diesel internal combustion engine Download PDFInfo
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- DE102010041519B3 DE102010041519B3 DE102010041519A DE102010041519A DE102010041519B3 DE 102010041519 B3 DE102010041519 B3 DE 102010041519B3 DE 102010041519 A DE102010041519 A DE 102010041519A DE 102010041519 A DE102010041519 A DE 102010041519A DE 102010041519 B3 DE102010041519 B3 DE 102010041519B3
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- cylinder
- internal combustion
- combustion engine
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- 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
- F02N19/005—Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/08—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing for rendering engine inoperative or idling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/02—Cutting-out
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- 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
- F02D41/0002—Controlling intake air
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- 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
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
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- 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
- F02D41/0002—Controlling intake air
- F02D2041/001—Controlling intake air for engines with variable valve actuation
-
- 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
- F02D41/008—Controlling each cylinder individually
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- 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
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Abstellen einer Dieselbrennkraftmaschine mit wenigstens zwei Zylindern und eine Recheneinheit, die zur Durchführung eines solchen Verfahrens ist.The present invention relates to a method for stopping a diesel internal combustion engine having at least two cylinders and a computing unit, which is for carrying out such a method.
Stand der TechnikState of the art
Dieselbrennkraftmaschinen werden herkömmlicherweise mittels des sogenannten Anlassers oder Starters angelassen, der dabei die Dieselbrennkraftmaschine eine oder mehrere Umdrehungen antreibt, bis die Selbstzündung einsetzt. Es sind auch sogenannte Start/Stopp-Betriebsarten bekannt, bei denen die Brennkraftmaschine in bestimmten Situationen abgestellt und relativ zeitnah und insbesondere schnell wieder angelassen werden soll. In diesem Zusammenhang ist es bekannt, die Brennkraftmaschine bei Stillstand des Fahrzeugs, beispielsweise an einer Ampel, abzustellen und bei Betätigung der Kupplung oder des Gaspedals wieder anzulassen. Es ist wünschenswert, diesen Wiederanlassvorgang schnell und ohne langwierige Mitwirkung des Starters durchzuführen, um diesen zu schonen, die Betriebssicherheit des Fahrzeugs zu erhöhen und störende Geräusche zu vermeiden. Aus diesem Grund ist es wünschenswert, einen geeigneten Zylinder möglichst früh, d. h. beim ersten Erreichen des oberen Totpunkts (ZOT – Zündung oberer Totpunkt), zu zünden und den sog. Startwinkel, d. h. den Kurbelwellenwinkel, den dieser Zylinder zwischen Stillstandsposition und erster Zündung zurücklegen muss, möglichst gering zu halten.Diesel engines are conventionally started by means of the so-called starter or starter, which drives the diesel engine one or more revolutions until self-ignition commences. There are also so-called start / stop modes are known in which the engine is parked in certain situations and should be started relatively quickly and in particular quickly. In this context, it is known to stop the engine when the vehicle is at a standstill, for example at a traffic light, and to start it again when the clutch or accelerator pedal is actuated. It is desirable to perform this restarting process quickly and without lengthy involvement of the starter in order to protect it, to increase the operational safety of the vehicle and to avoid disturbing noises. For this reason, it is desirable to have a suitable cylinder as early as possible, d. H. at the first reaching the top dead center (ZOT - ignition top dead center), to ignite and the so-called. Starting angle, d. H. To keep the crankshaft angle that this cylinder must cover between standstill position and the first ignition, as low as possible.
Es ist bspw. aus der
Die
Insbesondere Dieselmotoren stellen wegen der Selbstzündung besondere Anforderungen an den Start, da möglicher Zündzeitpunkt und Startwinkel von der Synchronisation zwischen Nocken- und Kurbelwelle, einer Raildruckfreigabe (Mindestdruck im Rail, um ein sicheres Öffnen und Schließen des Injektors zu gewährleisten) und auch von den thermodynamischen Randbedingungen Druck und Temperatur im Brennraum abhängen. Die thermodynamischen Randbedingungen für eine Selbstzündung werden nur erreicht, wenn die Füllung im Zylinder zum Zeitpunkt des Wiederstarts ausreichend hoch ist und der Kolben schnell genug beschleunigt wird.In particular, diesel engines make special demands on the start because of the auto-ignition, since possible ignition timing and starting angle of the synchronization between cam and crankshaft, a rail pressure release (minimum pressure in the rail to ensure a safe opening and closing of the injector) and also of the thermodynamic boundary conditions Depend on pressure and temperature in the combustion chamber. The thermodynamic boundary conditions for autoignition are only achieved if the charge in the cylinder at the time of restarting is sufficiently high and the piston is accelerated quickly enough.
Es ist daher wünschenswert und Aufgabe der vorliegenden Erfindung, eine Möglichkeit anzugeben, um eine Dieselbrennkraftmaschine so abzustellen, dass ein schnelles und trotzdem sicheres und zuverlässiges Wiederanlassen möglich ist.It is therefore desirable and object of the present invention to provide a way to turn off a diesel engine so that a quick, yet safe and reliable restart is possible.
Offenbarung der ErfindungDisclosure of the invention
Erfindungsgemäß wird ein Verfahren zum Abstellen einer Dieselbrennkraftmaschine mit den Merkmalen des Patentanspruchs 1 und eine Recheneinheit, die zur Durchführung eines solchen Verfahrens eingerichtet ist, vorgeschlagen. Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche sowie der nachfolgenden Beschreibung.According to the invention, a method for switching off a diesel internal combustion engine having the features of patent claim 1 and a computing unit that is set up to carry out such a method is proposed. Advantageous embodiments are the subject of the dependent claims and the following description.
Vorteile der ErfindungAdvantages of the invention
Die Erfindung nutzt insbesondere die Erkenntnis, dass die Stillstandsposition der Brennkraftmaschine im Wesentlichen von dem Kräftegleichgewicht an der Kurbelwelle abhängt. Maßgeblich sind dabei die Gasfederkräfte im arbeitenden und verdichtenden Zylinder, da hier die Ventile geschlossen sind. Erfindungsgemäß besitzt nun der arbeitende Zylinder eine, vorzugsweise deutlich, kleinere Füllung (hier im Wesentlichen Luftmasse, da üblicherweise nach einer Stoppanforderung kein Kraftstoff mehr eingespritzt wird) als der verdichtende Zylinder, so dass ein Kräftegleichgewicht bereits bei wenigen Grad Kurbelwellenwinkel (°KW) nach dem oberen Totpunkt (ZOT) des arbeitenden Zylinders erreicht wird. In der Folge befindet sich der verdichtende Zylinder nahe seinem unteren Totpunkt (UT) noch am Anfang der Verdichtungsphase. Er verliert während der Stillstandsphase nur einen geringen Teil seiner Füllung, da der Zylinderdruck nur geringfügig höher als der Umgebungsdruck ist, und erreicht daher beim Wiederstart den erforderlichen Druck und die erforderliche Temperatur, um bereits beim ersten Durchlauf nahe seinem ZOT zu zünden. Die Erfindung ermöglicht ein Wiederanlassen mit einer sehr kurzen Startzeit. Die Belastung des Anlassers wird verringert, der Komfort für den Fahrer erhöht. Eine Minimierung der Startzeit bedeutet auch einen Sicherheitsgewinn, da es durch einen verzögerten Wiederstart bspw. zum Rückrollen des Fahrzeuges kommen kann.In particular, the invention uses the knowledge that the standstill position of the internal combustion engine essentially depends on the equilibrium of forces on the crankshaft. Decisive are the gas spring forces in the working and compressing cylinder, since here the valves are closed. According to the invention, the working cylinder now has a, preferably clearly, smaller charge (in this case essentially air mass, since usually no fuel is injected after a stop request) than the compressing cylinder, so that an equilibrium of forces already at a few degrees crankshaft angle (° CA) after the top dead center (ZOT) of the working cylinder is reached. As a result, the compression cylinder near its bottom dead center (UT) is still at the beginning of the compression phase. It loses only a small part of its charge during the stoppage phase, since the cylinder pressure is only slightly higher than the ambient pressure, and therefore reaches the required pressure and the temperature at the start again to ignite near its ZOT already at the first pass. The invention allows a restart with a very short start time. The load of the starter is reduced, which increases comfort for the driver. A minimization of the start time also means a gain in safety, since it can come to a roll-back of the vehicle by a delayed restart, for example.
Eine Prädiktion der Zylinderstellung im Stillstand, d. h. insbesondere, welcher Zylinder sich in welchem Takt befinden wird, kann bspw. softwaretechnisch mittels Modellberechnungen durchgeführt werden. Dazu sind im Stand der Technik Methoden bekannt. Besitzt die Brennkraftmaschine weniger Zylinder als Takte, kann durch eine bevorzugte entsprechende Ansteuerung der Brennkraftmaschine, wie bspw. in der
Vorzugsweise wird die Brennkraftmaschine so abgestellt, dass ein Startwinkel von 120°KW bis 180°KW zur Verfügung steht. Es hat sich nämlich gezeigt, dass eine Abweichung der Kolbenposition von bis zu 60°KW nach UT für den verdichtenden Zylinder noch akzeptabel ist, um eine Zündung auf den 1. ZOT beim Wiederstart zu gewährleisten.Preferably, the internal combustion engine is turned off so that a starting angle of 120 ° CA to 180 ° CA is available. It has been shown that a deviation of the piston position of up to 60 ° CA after UT is still acceptable for the compressing cylinder to ensure ignition on the 1st ZOT when restarting.
Die Erfindung lässt sich besonders vorteilhaft mit bekannten Abschaltverfahren von Dieselbrennkraftmaschinen verbinden. Es ist bekannt, beim Abschalten eine sog. ”Soff Shut-Off”-Funktion zu verwenden. Diese sorgt für einen sanften Motorauslauf, indem durch Schließen der Drosselklappe (bei Diesel auch Regelklappe genannt) eine möglichst geringe Zylinderfüllung erzielt wird. Dadurch verringern sich die Kompressions- und Entspannungskräfte und der Motor läuft gleichmäßiger aus. Bei einer Dieselbrennkraftmaschine mit (voll)variablem Ventiltrieb übernehmen die Einlassventile die Aufgabe der Drosselklappe. Die Einlassventile werden hier nur kurz geöffnet, um eine möglichst geringe Füllung des Zylinders zu erreichen. In Kombination mit der erfindungsgemäßen Lösung wird nun insbesondere die letzte Zylinderfüllung vor dem Motorstillstand beeinflusst. Bei dem Zylinder, der sich im Stillstand im Verdichtungstakt befinden wird, sollte die letzte Zylinderfüllung im Gegensatz zu den vorherigen Zylinderfüllungen möglichst hoch sein. Dies wird vorzugsweise durch möglichst lange Einlassventilöffnungszeiten erzielt und ist bspw. mit Hilfe der Motorsteuerung umsetzbar. Eine hohe Zylinderfüllung bewirkt einen schnellen Zylinderdruckanstieg während der Kompressionsphase. Der Zylinderdruck im komprimierenden Zylinder erreicht daher schon nach wenigen °KW den gleichen Wert wie der Zylinderdruck des sich gerade entspannenden Zylinders mit der kleinen Füllung. Daher bleibt der Motor nicht mittig, sondern sehr nahe am UT des beim Wiederstart ersten verdichtenden Zylinders stehen. Dieser Zylinder hat demnach einen passenden Startwinkel sowie eine ausreichende Luftfüllung, um bereits im ersten Arbeitstakt zu zünden. Eine Einspritzung von Kraftstoff erfolgt dabei zu einem passenden Zeitpunkt, insbesondere während der Verdichtung.The invention can be combined particularly advantageously with known shutdown methods of diesel internal combustion engines. It is known to use a so-called "soft shut-off" function when switching off. This ensures a smooth engine run-out by minimizing cylinder filling by closing the throttle valve (also called butterfly valve in the case of Diesel). This reduces the compression and expansion forces and keeps the engine running smoother. In a diesel engine with (fully) variable valve train intake valves take over the task of the throttle. The inlet valves are opened only briefly to achieve the lowest possible filling of the cylinder. In combination with the solution according to the invention, in particular the last cylinder filling is then influenced before the engine stoppage. For the cylinder, which will be at standstill in the compression stroke, the last cylinder filling should be as high as possible, in contrast to the previous cylinder fillings. This is preferably achieved by the longest possible intake valve opening times and can be implemented, for example, with the aid of the engine control. A high cylinder filling causes a rapid cylinder pressure increase during the compression phase. The cylinder pressure in the compressing cylinder therefore reaches the same value as the cylinder pressure of the currently relaxing cylinder with the small filling after just a few ° CA. Therefore, the engine is not centered, but very close to the UT of the first compressing cylinder when restarting. This cylinder therefore has a suitable starting angle and sufficient air filling to ignite already in the first cycle. An injection of fuel takes place at an appropriate time, in particular during the compression.
Eine erfindungsgemäße Recheneinheit, z. B. ein Steuergerät eines Kraftfahrzeugs, ist, insbesondere programmtechnisch, dazu eingerichtet, ein erfindungsgemäßes Verfahren durchzuführen.An arithmetic unit according to the invention, for. As a control device of a motor vehicle is, in particular programmatically, adapted to perform a method according to the invention.
Auch die Implementierung des Verfahrens in Form von Software ist vorteilhaft, da dies besonders geringe Kosten verursacht, insbesondere wenn ein ausführendes Steuergerät noch für weitere Aufgaben genutzt wird und daher ohnehin vorhanden ist. Geeignete Datenträger zur Bereitstellung des Computerprogramms sind insbesondere Disketten, Festplatten, Flash-Speicher, EEPROMs, CD-ROMs, DVDs u. a. m. Auch ein Download eines Programms über Computernetze (Internet, Intranet usw.) ist möglich.The implementation of the method in the form of software is also advantageous, since this causes particularly low costs, in particular if an executing control device is still used for further tasks and therefore exists anyway. Suitable data carriers for the provision of the computer program are in particular floppy disks, hard disks, flash memories, EEPROMs, CD-ROMs, DVDs and the like. a. m. It is also possible to download a program via computer networks (Internet, intranet, etc.).
Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich aus der Beschreibung und der beiliegenden Zeichnung.Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.
Die Erfindung ist anhand eines Ausführungsbeispiels in der Zeichnung schematisch dargestellt und wird im Folgenden unter Bezugnahme auf die Zeichnung ausführlich beschrieben.The invention is illustrated schematically with reference to an embodiment in the drawing and will be described in detail below with reference to the drawing.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Ausführungsform(en) der ErfindungEmbodiment (s) of the invention
In
Die Brennkraftmaschine
In dem in
In
Während des Auslaufens wird in einem Schritt
Gleichzeitig wird in einem Schritt
Dieses Prädiktionsergebnis wird in einem Schritt
Mit der erfindungsgemäßen Lösung kann wenigstens ein Zylinder, hier der Zylinder
Claims (9)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041519A DE102010041519B3 (en) | 2010-09-28 | 2010-09-28 | Method for stoppage of diesel internal combustion engine, involves stopping multiple intake valves or exhaust valves after deactivation request and during phasing out of diesel internal combustion engine |
CN201110310790XA CN102418618A (en) | 2010-09-28 | 2011-09-28 | Method for shutting down a diesel engine having at least two cylinders |
FR1158688A FR2965303A1 (en) | 2010-09-28 | 2011-09-28 | METHOD FOR STOPPING A DIESEL ENGINE HAVING AT LEAST TWO CYLINDERS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041519A DE102010041519B3 (en) | 2010-09-28 | 2010-09-28 | Method for stoppage of diesel internal combustion engine, involves stopping multiple intake valves or exhaust valves after deactivation request and during phasing out of diesel internal combustion engine |
Publications (1)
Publication Number | Publication Date |
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DE102010041519B3 true DE102010041519B3 (en) | 2011-12-22 |
Family
ID=45091445
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DE102010041519A Expired - Fee Related DE102010041519B3 (en) | 2010-09-28 | 2010-09-28 | Method for stoppage of diesel internal combustion engine, involves stopping multiple intake valves or exhaust valves after deactivation request and during phasing out of diesel internal combustion engine |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN102418618A (en) |
DE (1) | DE102010041519B3 (en) |
FR (1) | FR2965303A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104512246A (en) * | 2013-09-30 | 2015-04-15 | 鄂志阳 | Device for saving energy and reducing emission by utilizing inertia force of motor vehicle |
WO2019110048A1 (en) * | 2017-12-04 | 2019-06-13 | Schaeffler Technologies AG & Co. KG | Method for controlling an internal combustion engine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2521428B (en) | 2013-12-19 | 2018-08-15 | Jaguar Land Rover Ltd | Improvements to engine shutdown |
DE102015225607A1 (en) * | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Method for restarting a multi-cylinder internal combustion engine with intake manifold injection without externally supplied torque |
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DE10301695A1 (en) * | 2003-01-17 | 2004-08-05 | Siemens Ag | Process for the controlled shutdown of an internal combustion engine |
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DE102004032918B4 (en) * | 2004-07-08 | 2016-06-02 | Robert Bosch Gmbh | Device and method for starting an internal combustion engine having a plurality of cylinders |
DE102004043528B4 (en) * | 2004-09-08 | 2010-07-15 | Continental Automotive France | A method for optimizing an internal direct start of a spark-ignition variable compression ratio internal combustion engine |
EP1657420A1 (en) * | 2004-11-16 | 2006-05-17 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Internal combustion engine and method for controlled shut down of an engine |
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JP4849040B2 (en) * | 2007-09-10 | 2011-12-28 | マツダ株式会社 | Diesel engine control device |
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JP2010185312A (en) * | 2009-02-10 | 2010-08-26 | Denso Corp | Control device of diesel engine |
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2010
- 2010-09-28 DE DE102010041519A patent/DE102010041519B3/en not_active Expired - Fee Related
-
2011
- 2011-09-28 FR FR1158688A patent/FR2965303A1/en active Pending
- 2011-09-28 CN CN201110310790XA patent/CN102418618A/en active Pending
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DE19817497A1 (en) * | 1998-04-20 | 1999-10-28 | Isad Electronic Sys Gmbh & Co | Method for starting motor vehicle IC engine |
DE10255149A1 (en) * | 2002-11-27 | 2004-06-17 | Robert Bosch Gmbh | Combustion engine operation method, especially with direct starter, involves determining three desired sets of control and/or regulating values for use in initializing, turn-off and final oscillation phases |
DE10258872A1 (en) * | 2002-12-17 | 2004-07-08 | Robert Bosch Gmbh | Variable compression ratio operation of an internal combustion engine for a motor vehicle, uses inputs from camshaft and crankshaft angle |
DE10301695A1 (en) * | 2003-01-17 | 2004-08-05 | Siemens Ag | Process for the controlled shutdown of an internal combustion engine |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104512246A (en) * | 2013-09-30 | 2015-04-15 | 鄂志阳 | Device for saving energy and reducing emission by utilizing inertia force of motor vehicle |
WO2019110048A1 (en) * | 2017-12-04 | 2019-06-13 | Schaeffler Technologies AG & Co. KG | Method for controlling an internal combustion engine |
CN111433098A (en) * | 2017-12-04 | 2020-07-17 | 舍弗勒技术股份两合公司 | Method for controlling an internal combustion engine |
US11207964B2 (en) | 2017-12-04 | 2021-12-28 | Schaeffler Technologies AG & Co. KG | Method for controlling an internal combustion engine |
US11458828B2 (en) | 2017-12-04 | 2022-10-04 | Schaeffler Technologies AG & Co. KG | Method for controlling an internal combustion engine of a hybrid powertrain |
CN111433098B (en) * | 2017-12-04 | 2023-12-29 | 舍弗勒技术股份两合公司 | Method for controlling an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
FR2965303A1 (en) | 2012-03-30 |
CN102418618A (en) | 2012-04-18 |
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