EP1138899A2 - Verfahren zur Erkennung des Verbrennungstaktes bei einem Einzylinder-Viertaktmotor - Google Patents
Verfahren zur Erkennung des Verbrennungstaktes bei einem Einzylinder-Viertaktmotor 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
- engine
- measured
- stroke
- 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- Withdrawn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
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
-
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims (5)
- Verfahren zur Erkennung des Verbrennungstaktes bei einem Einzylinder-Viertaktmotor, bei dem die Position und die Winkelgeschwindigkeit der Kurbelwelle ermittelt wird, dadurch gekennzeichnet, 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.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Periodendauer vom oberen bis zum unteren Totpunkt der Kurbelwelle gemessen wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Messung der Periodendauer gefiltert wird, wobei während des Startvorgangs eine andere Filterzeitkonstante verwendet wird als im Normalbetrieb des Motors.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schwellwert zur Erkennung der prozentualen Periodendauerdifferenz im Normalbetrieb des Motors betriebspunktabhängig ausgeführt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Erkennung des Verbrennungstaktes durch eine Diagnosefunktion permanent überwacht wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10015595 | 2000-03-29 | ||
| DE10015595A DE10015595A1 (de) | 2000-03-29 | 2000-03-29 | Verfahren zur Erkennung des Verbrennungstaktes bei einem Einzylinder-Viertaktmotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1138899A2 true EP1138899A2 (de) | 2001-10-04 |
| EP1138899A3 EP1138899A3 (de) | 2003-07-23 |
Family
ID=7636822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01102656A Withdrawn EP1138899A3 (de) | 2000-03-29 | 2001-02-07 | Verfahren zur Erkennung des Verbrennungstaktes bei einem Einzylinder-Viertaktmotor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6550452B2 (de) |
| EP (1) | EP1138899A3 (de) |
| JP (1) | JP2001289109A (de) |
| DE (1) | DE10015595A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137688A1 (de) * | 2018-01-15 | 2019-07-18 | Robert Bosch Gmbh | Verfahren zur bestimmung einer position einer verbrennungskraftmaschine |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4061951B2 (ja) * | 2001-05-16 | 2008-03-19 | 国産電機株式会社 | 4サイクル内燃機関の行程判定方法及び装置 |
| DE10201164A1 (de) * | 2002-01-15 | 2003-08-14 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Erkennung einer Phase eines Viertakt-Ottomotors |
| 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 (de) * | 2005-04-06 | 2006-10-11 | Scania CV AB (publ) | Verfahren und System für eine Brennkraftmaschine |
| JP4539562B2 (ja) * | 2006-01-06 | 2010-09-08 | 株式会社デンソー | 単気筒4サイクルエンジンの制御装置 |
| JP4801184B2 (ja) * | 2009-04-20 | 2011-10-26 | 本田技研工業株式会社 | 汎用内燃機関の点火制御装置 |
| US8186331B2 (en) * | 2009-09-25 | 2012-05-29 | Cummins Power Generation Ip, Inc. | Spark suppression for a genset |
| JP5552148B2 (ja) * | 2012-09-28 | 2014-07-16 | 富士重工業株式会社 | エンジンの行程判別装置 |
| FR3072125A1 (fr) * | 2017-10-09 | 2019-04-12 | Continental Automotive France | Procede et systeme de validation de la phase d'un moteur de vehicule |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3611262A1 (de) * | 1986-04-04 | 1987-10-08 | Bosch Gmbh Robert | Verfahren zur erkennung des arbeitstaktes eines zylinders einer brennkraftmaschine |
| JP2541949B2 (ja) * | 1986-11-28 | 1996-10-09 | 本田技研工業株式会社 | 4サイクル内燃機関の点火時期制御装置 |
| DE4418577A1 (de) * | 1994-05-27 | 1995-11-30 | Bosch Gmbh Robert | Einrichtung zur Regelung einer Brennkraftmaschine |
| JP3441812B2 (ja) | 1994-09-08 | 2003-09-02 | 本田技研工業株式会社 | 内燃エンジンの燃焼状態検出装置 |
| US5562082A (en) * | 1995-03-20 | 1996-10-08 | Delco Electronics Corp. | Engine cycle identification from engine speed |
| DE19540675C1 (de) * | 1995-10-31 | 1997-04-30 | Siemens Ag | Verfahren zur Momentenschätzung mittels Drehzahlauswertung an der Kurbelwelle einer Brennkraftmaschine |
| DE19810214B4 (de) * | 1998-03-10 | 2009-09-17 | Robert Bosch Gmbh | Verfahren zur Synchronisation einer mehrzylindrigen Brennkraftmaschine |
| 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 |
| DE19844910A1 (de) * | 1998-09-30 | 2000-04-06 | Bosch Gmbh Robert | Einrichtung zur Phasenerkennung |
| JP4093682B2 (ja) * | 1999-05-28 | 2008-06-04 | 本田技研工業株式会社 | 4サイクルエンジンの行程判別装置 |
-
2000
- 2000-03-29 DE DE10015595A patent/DE10015595A1/de not_active Withdrawn
-
2001
- 2001-02-07 EP EP01102656A patent/EP1138899A3/de not_active Withdrawn
- 2001-03-19 JP JP2001078958A patent/JP2001289109A/ja active Pending
- 2001-03-29 US US09/820,317 patent/US6550452B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137688A1 (de) * | 2018-01-15 | 2019-07-18 | Robert Bosch Gmbh | Verfahren zur bestimmung einer position einer verbrennungskraftmaschine |
| CN111601960A (zh) * | 2018-01-15 | 2020-08-28 | 罗伯特·博世有限公司 | 用于确定内燃机的位置的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001289109A (ja) | 2001-10-19 |
| EP1138899A3 (de) | 2003-07-23 |
| DE10015595A1 (de) | 2001-10-04 |
| US6550452B2 (en) | 2003-04-22 |
| US20010025625A1 (en) | 2001-10-04 |
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| RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7F 02D 41/34 B Ipc: 7F 02D 41/22 B Ipc: 7F 02B 75/16 B Ipc: 7F 02D 41/06 A |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20030903 |