EP1138899A2 - Method for detecting the working stroke of a single-cylinder four-cycle engine - Google Patents
Method for detecting the working stroke of a single-cylinder four-cycle engine Download PDFInfo
- Publication number
- EP1138899A2 EP1138899A2 EP01102656A EP01102656A EP1138899A2 EP 1138899 A2 EP1138899 A2 EP 1138899A2 EP 01102656 A EP01102656 A EP 01102656A EP 01102656 A EP01102656 A EP 01102656A EP 1138899 A2 EP1138899 A2 EP 1138899A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- crankshaft
- period
- measured
- engine
- dead center
- 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.)
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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
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
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- 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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
-
- 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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- 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
- F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
Definitions
- the invention relates to a method for detecting the combustion cycle in a single-cylinder four-stroke engine, in which the position and the angular velocity the crankshaft is determined.
- the invention has for its object a method of the aforementioned Way of creating it without using a the position of the camshaft determining sensor enables that of two successive To determine revolutions of the crankshaft in which the combustion cycle takes place.
- this object is achieved in that the period measured from top dead center to a certain angle of rotation of the crankshaft and that the measured period of two successive Revolutions of the crankshaft is compared, the combustion stroke in the Revolution of the crankshaft takes place with the shorter period.
- the invention is based on the knowledge that the angular velocity of the Crankshaft of a single-cylinder four-stroke engine is non-uniform.
- an accelerating force acts on the crankshaft, while in the exhaust, Intake and compression stroke via the piston and the connecting rod to the crankshaft acts a braking force.
- the crankshaft is the period, i.e. H. those for the twist the crankshaft by a certain angle of rotation in two successive Revolutions of the same required time period of different lengths.
- the period is preferably from top dead center to bottom Dead center of the crankshaft measured, because in this area the greatest differences the angular velocity of the crankshaft occur.
- the difference in measured period of two successive revolutions of the crankshaft is therefore particularly large and clear.
- the method according to the invention provides the advantage that the service life the spark plug is doubled because only half the number of ignition sparks is left is produced. Due to the reduced energy requirement of the ignition coil, the generator can turn out smaller and cheaper. Furthermore, the raw emissions are lower, since the fuel is injected in the correct phase, so that a cheaper (coating) Catalyst can be used. This will be done without using a Position of the camshaft determining sensor reached by that revolution the crankshaft is determined in which the combustion cycle takes place.
- the position of the crankshaft is first determined, and fuel is injected every revolution. As soon as the engine independently runs and because of the accelerating from the piston via the connecting rod or braking forces has a non-uniform angular velocity be clearly determined in which of two successive revolutions the crankshaft the combustion cycle takes place. Starting from this revolution can then be injected and a fuel every second revolution Spark are generated.
- the crankshaft is accelerated by the combustion. This acceleration takes place during the following intake stroke (360 ° later) not instead.
- the period is used to calculate this acceleration measured from top dead center (TDC) to bottom dead center (TDC) of the crankshaft.
- TDC top dead center
- TDC bottom dead center
- the measurement of the period is filtered in a suitable manner, where a different filter time constant is used during the start process is considered in normal engine operation. This will influence the starter's influence on the Measurement of the period duration minimized.
- To determine the combustion cycle the difference in the period of two successive revolutions as a percentage calculated. The sign of this percentage is a measure of each slower or faster rotation.
- the combustion stroke is recognized and the injection pulses and the ignitions can be correctly output at the combustion stroke.
- the detection of the threshold value is temperature-dependent in the start area of the engine executed to the different friction losses in warm and cold engine to compensate. The detection takes place during normal operation of the engine of the threshold value in a load and speed range (map) in order at every operating point of the engine to ensure reliable detection of the combustion cycle.
- a diagnostic function monitors the correct detection.
- the skilled person is familiar with the formation of a device for determining the position, d. H. the angle of rotation of the crankshaft and to determine the duration of a certain period of the crankshaft known, so that a more detailed explanation is unnecessary.
- the determined measurement results are in an engine control processed to ensure that fuel in the right amount and for is injected into the cylinder at the right time and the Ignition takes place.
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- 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)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Erkennung des Verbrennungstaktes bei einem Einzylinder-Viertaktmotor, bei dem die Position und die Winkelgeschwindigkeit der Kurbelwelle ermittelt wird.The invention relates to a method for detecting the combustion cycle in a single-cylinder four-stroke engine, in which the position and the angular velocity the crankshaft is determined.
Bei einem Viertaktmotor finden der Ansaug- und der Verdichtungstakt einerseits und der Arbeits- oder der Verbrennungstakt und der Auspufftakt andererseits in zwei aufeinanderfolgenden Umdrehungen der Kurbelwelle statt. Bei einem Vergasermotor wird der Brennstoff im Ansaugtakt zusammen mit der Verbrennungsluft zugeführt, sobald das von der Nockenwelle gesteuerte Einlaßventil öffnet. Bei einem Einspritzmotor hingegen wird der Kraftstoff kurz vor Beginn des Arbeitstaktes in den Zylinder eingespritzt, d. h. kurz bevor der Kolben den oberen Totpunkt erreicht. Dabei stellt die Erkennung des richtigen Zeitpunkts zum Einspritzen des Kraftstoffs ein gewisses Problem dar. Durch Messen der Position und der Winkelgeschwindigkeit der Kurbelwelle läßt sich zwar der richtige Zeitpunkt für die Einspritzung des Kraftstoffs vor Ausführung des Verbrennungstaktes bestimmten, es läßt sich aber nicht bestimmten, ob die Kurbelwelle gerade diejenige Umdrehung ausführt, in welcher der Verbrennungstakt stattfindet. Es sind Viertaktmotoren bekannt, bei denen bei jeder Umdrehung der Kurbelwelle Kraftstoff in den Zylinder eingespritzt wird, kurz bevor der Kolben den oberen Totpunkt erreicht, und die Zündkerze wird bei jeder Umdrehung der Kurbelwelle einmal gezündet. Das bedeutet, daß bei jeder zweiten Umdrehung der Kurbelwelle Kraftstoff zum falschen Zeitpunkt eingespritzt und ein Zündfunke erzeugt wird, nämlich in derjenigen Umdrehung der Kurbelwelle, in welcher der Ansaugtakt stattfindet. Eine solche Vorgehensweise führt zu einem verstärkten Abbrand der Zündkerze und zu einem höheren Stromverbrauch, was zu Problemen hinsichtlich der Ladebilanz führen kann. Noch schwerwiegender ist aber der Nachteil, daß sich sehr schlechte Abgaswerte ergeben, weil der Vorlagerungswinkel der Einspritzimpulse nicht taktsynchron ausgegeben werden kann. Da die Nockenwelle mit der halben Winkelgeschwindigkeit der Kurbelwelle rotiert, könnte leicht festgestellt werden, in welcher von zwei aufeinanderfolgenden Umdrehungen der Kurbelwelle der Verbrennungstakt stattfindet. Hierzu müßte aber der Nockenwelle ein zusätzlicher Sensor zugeordnet sein, der deren Position ermittelt. Dies ist aber einerseits mit zusätzlichen Kosten verbunden, und andererseits ist die Unterbringung des Geberrades auf der Nockenwelle und des zugehörigen Sensors wegen des zur Verfügung stehenden beengten Raumes problematisch.With a four-stroke engine, the intake and the compression stroke take place on the one hand and the working or the combustion stroke and the exhaust stroke on the other hand in two successive revolutions of the crankshaft. With a carburetor engine the fuel is supplied together with the combustion air in the intake stroke, as soon as the intake valve controlled by the camshaft opens. At a Injection engine, on the other hand, is fuel shortly before the start of the work cycle Injected cylinder, d. H. just before the piston reaches top dead center. there sets the detection of the correct time to inject the fuel certain problem. By measuring the position and angular velocity The right time for the injection of the fuel can indeed be given to the crankshaft determine before execution of the combustion stroke, but it can not determined whether the crankshaft is currently making the rotation in which the combustion cycle takes place. Four-stroke engines are known, in which every revolution of the crankshaft fuel is injected into the cylinder, short before the piston reaches top dead center, and the spark plug turns on at each Revolution of the crankshaft fired once. That means that every second Rotation of the crankshaft fuel injected at the wrong time and on Ignition spark is generated, namely in that revolution of the crankshaft in which the intake stroke takes place. Such an approach leads to an increased The spark plug burned up and led to higher power consumption, too Problems with the load balance. But is even more serious the disadvantage that very poor exhaust gas values result because of the pre-storage angle the injection pulses cannot be output isochronously. Since the The camshaft could rotate at half the angular speed of the crankshaft be easily determined in which of two successive revolutions the crankshaft the combustion cycle takes place. For this, however, the camshaft would have to an additional sensor can be assigned, which determines their position. This is but on the one hand comes with additional costs, and on the other hand is the accommodation the encoder wheel on the camshaft and the associated sensor of the available confined space is problematic.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, das es ohne Verwendung eines die Position der Nockenwelle ermittelnden Sensors ermöglicht, diejenige von zwei aufeinanderfolgenden Umdrehungen der Kurbelwelle zu ermitteln, in welcher der Verbrennungstakt stattfindet.The invention has for its object a method of the aforementioned Way of creating it without using a the position of the camshaft determining sensor enables that of two successive To determine revolutions of the crankshaft in which the combustion cycle takes place.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Periodendauer vom oberen Totpunkt bis zu einem bestimmten Drehwinkel der Kurbelwelle gemessen wird, und daß die gemessene Periodendauer zweier aufeinanderfolgender Umdrehungen der Kurbelwelle verglichen wird, wobei der Verbrennungstakt in der Umdrehung der Kurbelwelle mit der kürzeren Periodendauer stattfindet.According to the invention, this object is achieved in that the period measured from top dead center to a certain angle of rotation of the crankshaft and that the measured period of two successive Revolutions of the crankshaft is compared, the combustion stroke in the Revolution of the crankshaft takes place with the shorter period.
Die Erfindung beruht auf der Erkenntnis, daß die Winkelgeschwindigkeit der Kurbelwelle eines Einzylinder-Viertaktmotors ungleichförmig ist. Im Verbrennungstakt wirkt auf die Kurbelwelle eine beschleunigende Kraft, während im Auspuff-, Ansaug- und Verdichtungstakt über den Kolben und die Pleuelstange auf die Kurbelwelle eine bremsende Kraft einwirkt. Aufgrund dieser unterschiedlichen Winkelgeschwindigkeit der Kurbelwelle ist die Periodendauer, d. h. die für die Verdrehung der Kurbelwelle um einen bestimmten Drehwinkel in zwei aufeinanderfolgenden Umdrehungen derselben erforderliche Zeitdauer verschieden lang. Durch Messen und Vergleichen der Periodendauer zweier aufeinanderfolgender Umdrehungen der Kurbelwelle kann daher zweifelsfrei ermittelt werden, in welcher der beiden Umdrehungen der Kurbelwelle der Verbrennungstakt stattfindet.The invention is based on the knowledge that the angular velocity of the Crankshaft of a single-cylinder four-stroke engine is non-uniform. In the combustion cycle an accelerating force acts on the crankshaft, while in the exhaust, Intake and compression stroke via the piston and the connecting rod to the crankshaft acts a braking force. Because of this different angular velocity the crankshaft is the period, i.e. H. those for the twist the crankshaft by a certain angle of rotation in two successive Revolutions of the same required time period of different lengths. By measuring and comparing the period of two successive revolutions of the The crankshaft can therefore be determined with no doubt in which of the two revolutions the crankshaft the combustion cycle takes place.
Vorzugsweise wird die Periodendauer vom oberen Totpunkt bis zum unteren Totpunkt der Kurbelwelle gemessen, weil in diesem Bereich die größten Unterschiede der Winkelgeschwindigkeit der Kurbelwelle auftreten. Der Unterschied der gemessenen Periodendauer zweier aufeinanderfolgender Umdrehungen der Kurbelwelle ist daher besonders groß und deutlich.The period is preferably from top dead center to bottom Dead center of the crankshaft measured, because in this area the greatest differences the angular velocity of the crankshaft occur. The difference in measured period of two successive revolutions of the crankshaft is therefore particularly large and clear.
Da bei der Messung der Periodendauer Störgrößen überlagert werden, wird die Messung der Periodendauer zweckmäßigerweise gefiltert. Dabei wird während des Startvorgangs eine andere Filterzeitkonstante verwendet als im Normalbetrieb des Motors.Since disturbance variables are superimposed when measuring the period duration the measurement of the period is expediently filtered. It will be during used a different filter time constant than in normal operation of the motor.
Im Vergleich zu einem herkömmlichen Viertakt-Einspritzmotor, bei dem bei jeder Umdrehung der Kurbelwelle Kraftstoff eingespritzt und ein Zündfunke erzeugt wird, erbringt das erfindungsgemäße Verfahren den Vorteil, daß die Lebensdauer der Zündkerze verdoppelt wird, da nur noch die halbe Anzahl von Zündfunken erzeugt wird. Durch den verminderten Energiebedarf der Zündspule kann der Generator kleiner und preiswerter ausfallen. Ferner werden die Rohemissionen geringer, da der Kraftstoff phasenrichtig eingespritzt wird, so daß ein preiswerterer (Beschichtung) Katalysator eingesetzt werden kann. Dies wird ohne Verwendung eines die Position der Nockenwelle ermittelnden Sensors erreicht, indem diejenige Umdrehung der Kurbelwelle ermittelt wird, in welcher der Verbrennungstakt stattfindet. Compared to a conventional four-stroke injection engine, in which Every revolution of the crankshaft, fuel is injected and an ignition spark is generated the method according to the invention provides the advantage that the service life the spark plug is doubled because only half the number of ignition sparks is left is produced. Due to the reduced energy requirement of the ignition coil, the generator can turn out smaller and cheaper. Furthermore, the raw emissions are lower, since the fuel is injected in the correct phase, so that a cheaper (coating) Catalyst can be used. This will be done without using a Position of the camshaft determining sensor reached by that revolution the crankshaft is determined in which the combustion cycle takes place.
Beim Anlassen des Motors wird zunächst die Position der Kurbelwelle ermittelt, und es wird bei jeder Umdrehung Kraftstoff eingespritzt. Sobald der Motor selbständig läuft und wegen der vom Kolben über die Pleuelstange beschleunigenden bzw. bremsenden Kräfte eine ungleichförmige Winkelgeschwindigkeit aufweist, kann eindeutig festgestellt werden, in welcher von zwei aufeinanderfolgenden Umdrehungen der Kurbelwelle der Verbrennungstakt stattfindet. Von dieser Umdrehung ausgehend kann dann bei jeder zweiten Umdrehung Kraftstoff eingespritzt und ein Zündfunke erzeugt werden.When starting the engine, the position of the crankshaft is first determined, and fuel is injected every revolution. As soon as the engine independently runs and because of the accelerating from the piston via the connecting rod or braking forces has a non-uniform angular velocity be clearly determined in which of two successive revolutions the crankshaft the combustion cycle takes place. Starting from this revolution can then be injected and a fuel every second revolution Spark are generated.
Beim Verbrennungstakt wird die Kurbelwelle durch die Verbrennung beschleunigt. Beim nachfolgenden Ansaugtakt (360° später) findet diese Beschleunigung nicht statt. Zur Berechnung dieser Beschleunigung wird die Periodendauer vom oberen Totpunkt (OT) bis zum unteren Totpunkt (UT) der Kurbelwelle gemessen. Durch Vergleich der Periodendauer von jeweils aufeinanderfolgenden Umdrehungen wird erkannt, in welcher Umdrehung der Verbrennungstakt bzw. der Ansaugtakt stattfindet. Die Messung der Periodendauer wird in geeigneter Weise gefiltert, wobei während des Startvorgangs eine andere Filterzeitkonstante verwendet wird als im normalen Motorbetrieb. Dadurch wird der Einfluß des Anlassers auf die Messung der Periodendauer minimiert. Zur Ermittlung des Verbrennungstaktes wird die Differenz der Periodendauer von zwei aufeinanderfolgenden Umdrehungen prozentual errechnet. Das Vorzeichen dieses Prozentwertes ist ein Maß für die jeweils langsamere oder schnellere Umdrehung. Übersteigt der Absolutwert der prozentualen Differenz einen im Datenbereich eines entsprechenden Steuergerätes abgelegten Schwellwert, so gilt der Verbrennungstakt als erkannt, und die Einspritzimpulse sowie die Zündungen können korrekt zum Verbrennungstakt ausgegeben werden. Die Erkennung des Schwellwertes wird im Startbereich des Motors temperaturabhängig ausgeführt, um die unterschiedlichen Reibungsverluste bei warmem und kaltem Motor zu kompensieren. Im Normalbetrieb des Motors erfolgt die Erkennung des Schwellwertes in einem Last- und Drehzahlraum (Kennfeld), um in jedem Betriebspunkt des Motors eine sichere Erkennung des Verbrennungstaktes zu gewährleisten. Dabei überwacht eine Diagnosefunktion die korrekte Erkennung. During the combustion cycle, the crankshaft is accelerated by the combustion. This acceleration takes place during the following intake stroke (360 ° later) not instead. The period is used to calculate this acceleration measured from top dead center (TDC) to bottom dead center (TDC) of the crankshaft. By comparing the period of successive revolutions the revolution in which the combustion cycle or the intake cycle is recognized takes place. The measurement of the period is filtered in a suitable manner, where a different filter time constant is used during the start process is considered in normal engine operation. This will influence the starter's influence on the Measurement of the period duration minimized. To determine the combustion cycle the difference in the period of two successive revolutions as a percentage calculated. The sign of this percentage is a measure of each slower or faster rotation. If the absolute value exceeds the percentage Difference one stored in the data area of a corresponding control unit Threshold value, then the combustion stroke is recognized and the injection pulses and the ignitions can be correctly output at the combustion stroke. The detection of the threshold value is temperature-dependent in the start area of the engine executed to the different friction losses in warm and cold engine to compensate. The detection takes place during normal operation of the engine of the threshold value in a load and speed range (map) in order at every operating point of the engine to ensure reliable detection of the combustion cycle. A diagnostic function monitors the correct detection.
Dem Fachmann ist die Ausbildung einer Einrichtung zur Ermittlung der Position, d. h. des Drehwinkels der Kurbelwelle und zur Ermittlung der Dauer einer bestimmten Periode der Kurbelwelle bekannt, so daß eine nähere Erläuterung entbehrlich ist. Die ermittelten Meßergebnisse werden in einer Motorsteuerung verarbeitet, um zu gewährleisten, daß Brennstoff in der richtigen Menge und zum richtigen Zeitpunkt in den Zylinder eingespritzt wird und im richtigen Zeitpunkt die Zündung erfolgt.The skilled person is familiar with the formation of a device for determining the position, d. H. the angle of rotation of the crankshaft and to determine the duration of a certain period of the crankshaft known, so that a more detailed explanation is unnecessary. The determined measurement results are in an engine control processed to ensure that fuel in the right amount and for is injected into the cylinder at the right time and the Ignition takes place.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10015595 | 2000-03-29 | ||
| DE10015595A DE10015595A1 (en) | 2000-03-29 | 2000-03-29 | Method to recognize combustion stroke in single-cylinder four-stroke engine measures and compares periods of two subsequent crankshaft rotations, with combustion stroke during shorter period |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1138899A2 true EP1138899A2 (en) | 2001-10-04 |
| EP1138899A3 EP1138899A3 (en) | 2003-07-23 |
Family
ID=7636822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01102656A Withdrawn EP1138899A3 (en) | 2000-03-29 | 2001-02-07 | Method for detecting the working stroke of a single-cylinder four-cycle engine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6550452B2 (en) |
| EP (1) | EP1138899A3 (en) |
| JP (1) | JP2001289109A (en) |
| DE (1) | DE10015595A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137688A1 (en) * | 2018-01-15 | 2019-07-18 | Robert Bosch Gmbh | Method for determining a position of an internal combustion engine |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4061951B2 (en) * | 2001-05-16 | 2008-03-19 | 国産電機株式会社 | 4-stroke internal combustion engine stroke determination method and apparatus |
| DE10201164A1 (en) * | 2002-01-15 | 2003-08-14 | Bosch Gmbh Robert | Method and device for recognizing a phase of a four-stroke gasoline engine |
| US7225793B2 (en) * | 2003-08-14 | 2007-06-05 | Electrojet, Inc. | Engine timing control with intake air pressure sensor |
| US7350602B2 (en) * | 2004-07-19 | 2008-04-01 | Ford Global Technologies, Llc | System and method for engine start detection for hybrid vehicles |
| EP1710421A1 (en) * | 2005-04-06 | 2006-10-11 | Scania CV AB (publ) | Method and system for internal combustion engine |
| JP4539562B2 (en) * | 2006-01-06 | 2010-09-08 | 株式会社デンソー | Control device for single-cylinder four-cycle engine |
| JP4801184B2 (en) * | 2009-04-20 | 2011-10-26 | 本田技研工業株式会社 | Ignition control device for general-purpose internal combustion engine |
| US8186331B2 (en) * | 2009-09-25 | 2012-05-29 | Cummins Power Generation Ip, Inc. | Spark suppression for a genset |
| JP5552148B2 (en) * | 2012-09-28 | 2014-07-16 | 富士重工業株式会社 | Engine stroke discrimination device |
| FR3072125A1 (en) * | 2017-10-09 | 2019-04-12 | Continental Automotive France | METHOD AND SYSTEM FOR VALIDATING THE PHASE OF A VEHICLE ENGINE |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4870587A (en) * | 1986-11-28 | 1989-09-26 | Honda Giken Kogyo Kabushiki Kaisha | Method of discriminating a stroke of a 4-cycle internal combustion engine |
| US4889094A (en) * | 1986-04-04 | 1989-12-26 | Robert Bosch Gmbh | Method for recognizing the power stroke of a cylinder of an internal combustion engine |
| US5562082A (en) * | 1995-03-20 | 1996-10-08 | Delco Electronics Corp. | Engine cycle identification from engine speed |
| GB2337123A (en) * | 1998-05-09 | 1999-11-10 | Rover Group | Calculation of crankshaft angle in a four stroke engine having an odd number of cylinders |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4418577A1 (en) * | 1994-05-27 | 1995-11-30 | Bosch Gmbh Robert | Device for regulating an internal combustion engine |
| JP3441812B2 (en) | 1994-09-08 | 2003-09-02 | 本田技研工業株式会社 | Device for detecting combustion state of internal combustion engine |
| DE19540675C1 (en) * | 1995-10-31 | 1997-04-30 | Siemens Ag | Torque estimation method using evaluation of internal combustion engine revolution rate for engine control |
| DE19810214B4 (en) * | 1998-03-10 | 2009-09-17 | Robert Bosch Gmbh | Method for synchronizing a multi-cylinder internal combustion engine |
| DE19844910A1 (en) * | 1998-09-30 | 2000-04-06 | Bosch Gmbh Robert | Phase detection device |
| JP4093682B2 (en) * | 1999-05-28 | 2008-06-04 | 本田技研工業株式会社 | 4-cycle engine stroke discrimination device |
-
2000
- 2000-03-29 DE DE10015595A patent/DE10015595A1/en not_active Withdrawn
-
2001
- 2001-02-07 EP EP01102656A patent/EP1138899A3/en not_active Withdrawn
- 2001-03-19 JP JP2001078958A patent/JP2001289109A/en active Pending
- 2001-03-29 US US09/820,317 patent/US6550452B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889094A (en) * | 1986-04-04 | 1989-12-26 | Robert Bosch Gmbh | Method for recognizing the power stroke of a cylinder of an internal combustion engine |
| US4870587A (en) * | 1986-11-28 | 1989-09-26 | Honda Giken Kogyo Kabushiki Kaisha | Method of discriminating a stroke of a 4-cycle internal combustion engine |
| US5562082A (en) * | 1995-03-20 | 1996-10-08 | Delco Electronics Corp. | Engine cycle identification from engine speed |
| GB2337123A (en) * | 1998-05-09 | 1999-11-10 | Rover Group | Calculation of crankshaft angle in a four stroke engine having an odd number of cylinders |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137688A1 (en) * | 2018-01-15 | 2019-07-18 | Robert Bosch Gmbh | Method for determining a position of an internal combustion engine |
| CN111601960A (en) * | 2018-01-15 | 2020-08-28 | 罗伯特·博世有限公司 | Method for determining the position of an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| US6550452B2 (en) | 2003-04-22 |
| US20010025625A1 (en) | 2001-10-04 |
| EP1138899A3 (en) | 2003-07-23 |
| JP2001289109A (en) | 2001-10-19 |
| DE10015595A1 (en) | 2001-10-04 |
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