WO2006084660A1 - Procede pour controler le demarrage d’un moteur a combustion interne - Google Patents
Procede pour controler le demarrage d’un moteur a combustion interne Download PDFInfo
- Publication number
- WO2006084660A1 WO2006084660A1 PCT/EP2006/001052 EP2006001052W WO2006084660A1 WO 2006084660 A1 WO2006084660 A1 WO 2006084660A1 EP 2006001052 W EP2006001052 W EP 2006001052W WO 2006084660 A1 WO2006084660 A1 WO 2006084660A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinders
- crankshaft
- cylinder
- engine
- group
- Prior art date
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
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
-
- 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
- F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
-
- 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
- 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
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/36—Controlling fuel injection of the low pressure type with means for controlling distribution
-
- 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
- F02D2041/0092—Synchronisation of the cylinders at engine start
Definitions
- the invention relates to a method for controlling the starting of an indirect injection internal combustion engine.
- the invention is particularly intended for vehicles equipped with such an engine and will be described more specifically in connection with this application.
- the position of the engine and more precisely the crankshaft is generally not known, at least precisely. However, it is necessary to know this position to operate the engine properly.
- various processes consisting essentially of running the engine, injecting fuel at different times, to record various parameters by means of sensors and to deduce the position of the engine.
- the invention aims to reduce the time required to know the position of the engine and run the engine satisfactorily, without generating pollution.
- an engine comprising: a plurality of cylinders in each of which slides a piston between a bottom dead center and a top dead center,
- crankshaft whose rotational movement is linked to the sliding of the pistons
- Injectors each associated with a cylinder for injecting fuel into the intake duct associated with said cylinder
- Ignition means each associated with a cylinder for igniting the fuel contained in said cylinder, using a sensor comprising a fixed part and a target linked to the crankshaft, said target comprising a reference index detectable by the fixed part,
- the reference index is detected less than half a turn of the crankshaft before the piston associated with it reaches the top dead center, from a position of departure of the engine, it controls the rotation of the crankshaft, the rotation of the crankshaft is detected,
- the injectors associated with the cylinders of the selected group of cylinders are commanded to inject fuel in the intake ducts associated with the cylinders of the selected group of cylinders,
- the ignition means associated with the cylinders of the group of selected cylinders are controlled at a given instant as a function of the detection of the reference index and substantially corresponding to the arrival at the top dead center of the pistons associated with the cylinders of the group of selected cylinders.
- the injectors associated with the selected group of cylinders are stopped before the crankshaft has rotated 75 degrees relative to the position starting motor.
- the engine stops substantially in the middle, between two consecutive top dead spots, that a top dead center is reached every 180 degrees of rotation of the crankshaft on a four-cylinder engine and that for each of the cylinders the closure the intake valve closes slightly less than 180 degrees before the top dead center. Therefore, given the uncertainty in the stopping position of the engine, fuel injection is thus stopped before the intake valve which was open in the starting position is closed again.
- the target of the sensor is provided with a plurality of marks detectable by the fixed part and the rotation of the motor is detected by the detection of a certain number of marks consecutively. It is thus detected that the rotation of the engine is effective, unlike a sensor placed on a starter control button and it is also ensured that it is not a simple jolt of the engine.
- the target of the sensor is provided with at least thirty markers detectable by the fixed part and the rotation of the motor is detected by the detection of 3 to 10 marks consecutively.
- fuel injection is stopped in the inlet ducts associated with the cylinders of the selected group of cylinders before at least one of the intake valves associated with the cylinders of the group of selected cylinders moves from the closed position to the open position.
- FIG. 1 is a schematic representation of a device for implementing a method according to the invention
- FIG. 2A, 2B, 2C, 2D show a method according to the invention from four different start positions.
- FIG. 1 illustrates a device 1 essentially comprising a motor 28, a sensor 2 and a control unit 22.
- the engine 28 here comprises four cylinders 12 (only one has been shown).
- the engine comprises a piston 14, an intake valve 16, an exhaust valve 18, an intake duct 20, an exhaust duct 38, a spark plug 24, an injector 26 and a combustion chamber 40.
- Each piston 14 slides between a bottom dead center 30 and a top dead center 32 each shown in phantom in the cylinder 12 corresponding thereto.
- Each exhaust valve 18 is movable between a closed position and an open position. In the closed position, the exhaust valve is resting on its seat 36 and prevents any communication between the combustion chamber 40 and the exhaust duct 38. On the other hand, when it is in the open position, the valve exhaust 18 is away from its seat 36, the combustion chamber 40 then communicates with the exhaust duct 38.
- each intake valve 16 is movable between a closed position and an open position. In the closed position, the intake valve bears on its seat 34 and prevents any communication between the combustion chamber 40 and the intake duct 20. On the other hand, when it is in the open position, the intake valve 16 is away from its seat 34, the inlet duct 20 then communicates with the combustion chamber 40.
- Each of the spark plugs 24 is placed in the combustion chamber 40 of the corresponding cylinder and each injector 26 is placed in the intake duct.
- the engine is thus of the "indirect" injection type because the injection is not done directly in the combustion chamber.
- the spark plugs 24 and the injectors 26 are controlled by the control unit 22.
- the sensor 2 comprises a target 6 of 60 teeth 8 regularly distributed integral with the crankshaft and a fixed portion 4 detecting the teeth 8 of the target 6.
- the teeth 8 are markers arranged every 6 degrees and separated by recesses.
- Target 6 more precisely 58 teeth, two consecutive teeth have indeed been removed, to form a reference index 10 to know the position of the crankshaft.
- the fixed part 4 of the sensor 2 is connected to the control unit 22, which counts the number of teeth 8 detected by the sensor 2.
- FIGS. 2A, 2B, 2C, 2D illustrate the teeth 8 detected by the sensor 2 during the rotation of the motor, above which is indicated the number of teeth 8 counted by the control unit 22.
- FIGS. 2A, 2B, 2C, 2D illustrate the teeth 8 detected by the sensor 2 during the rotation of the motor, above which is indicated the number of teeth 8 counted by the control unit 22.
- the engine having four cylinders, it comprises substantially four starting positions P 1 , P 2 , P 3 , P 4 each positioned substantially in the middle between a bottom dead center and the top dead center which follows and vice versa. These starting positions are those in which the engine naturally has a tendency to stop. There is some uncertainty of some teeth around these starting positions.
- the motor is rotated by a starter (not shown).
- the engine control unit 22 After the detection of five teeth 8 consecutively, in other words in a relatively short period of time such as 100 milliseconds, the engine control unit 22 considers that the engine is running in order to start it.
- the unit engine control 22 then controls the injector 26 corresponding to the cylinder 12 considered in Figure 2A. Between the beginning 26a and the end 26b of the fuel injection, the sensor 2 detects six teeth 8.
- the fuel injection stops after a 66 degree rotation of the crankshaft from the starting position P 1 and generally before the opening 16a of the intake valve 16, despite the uncertainty of the starting position.
- the opening 16a of the intake valve 16 comes after the detection by the sensor 2 of two other teeth 8 is 78 degrees from the starting position Pi.
- the fuel injected into the intake duct 20 enters as soon as possible. when in the combustion chamber 40.
- the piston 14 reaches the top dead center 32 after rotation of the crankshaft of two other teeth 8, 12 degrees. Then, after rotation of the crankshaft still two teeth 8, the closure 18b of the exhaust valve 18 occurs.
- the position of the crankshaft is not yet known to the control unit 22.
- the crankshaft continues to rotate, the piston 14 reaches the bottom dead center 30, then after detection of three teeth 8, the reference index 10 is detected by the sensor 2.
- the engine control unit 22 then knows the position of the crankshaft and can control the excitation of the spark plug 24 after the detection of twenty four teeth 8 by the sensor 2. Meanwhile (three teeth 8 after the arrival of the piston 14 at the bottom dead center 30), the closure 16b of the inlet valve 16 has intervened.
- the combustion of the fuel in the combustion chamber 40 therefore starts a tooth 8 (6 degrees) before the arrival of the piston 14 at the top dead center 32 and approximately VA turn of the crankshaft after the starting position P 1 .
- FIG. 2B illustrates the starting of the engine from the starting position P 2 , shifted by one half turn of the crankshaft relative to the starting position P 1 .
- the motor is rotated by a starter.
- the engine control unit 22 controls the injector 26 corresponding to the cylinder 12 considered in FIGS. 2A, 2B, 2C, 2D.
- the injection 26 of fuel into the intake duct 20 continues while the crankshaft rotates six teeth 8.
- the fuel injection 26 occurs entirely while the exhaust valve 18 is closed and the intake valve 16 is open.
- the injected fuel then enters directly into the combustion chamber 40.
- the admission valve 16 is closed and the control unit 22 controls the spark plug 24.
- FIG. 2C illustrates the starting of the engine from the starting position P 3 , shifted by one crankshaft revolution with respect to the starting position P 1 .
- the motor control unit 22 controls the injector 26 corresponding to the cylinder 12 considered in Figures 2A, 2B, 2C, 2D.
- the fuel injection 26 occurs entirely while the exhaust valve 18 and the intake valve 16 are closed. Then, the piston 14 reaches the top dead center 32, the opening 18a of the exhaust valve 18 occurs, the piston 14 reaches the bottom dead center 30, the reference index
- the opening 16a of the intake valve 16 intervenes and the fuel enters the combustion chamber 40, the piston 14 reaches the top dead center 32, the closure 18b of the exhaust valve 18 occurs, the piston reaches the bottom dead center 30, the reference index 10 is detected a second time (after detection of fifty eight teeth 8), the closure 16b of the intake valve 16 intervenes and finally the excitation of the candle d ignition 24 is controlled by the control unit 22.
- FIG. 2D illustrates the starting of the engine from the starting position P 4 , offset by one crankshaft revolution with respect to the starting position P 2 .
- the engine control unit 22 controls the injector 26 corresponding to the cylinder 12 considered in Figures 2A, 2B, 2C, 2D.
- the injection 26 of fuel occurs entirely while the inlet valve 16 is closed and the combustion of the fuel in the combustion chamber 40 is substantially 1% turn of the crankshaft after the starting position P 4 .
- fuel is injected simultaneously into the inlet duct of a cylinder whose starting position is the position P 1 and in the intake duct.
- Fuel injections into the intake duct of the other two cylinders can be shifted one-half turn of the crankshaft to ensure combustion at each engine cycle.
- the first combustion always occurs either 3 A crankshaft revolution after the starting position, or 1 VA crankshaft revolution after the starting position.
- the invention is not limited to the embodiment which has just been described by way of non-limiting example.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800043674A CN101115918B (zh) | 2005-02-09 | 2006-02-07 | 控制内燃机启动的方法 |
US11/815,888 US7661412B2 (en) | 2005-02-09 | 2006-02-07 | Method of controlling the start-up of an internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0501286A FR2881796B1 (fr) | 2005-02-09 | 2005-02-09 | Procede pour controler le demarrage d'un moteur a combustion interne |
FR0501286 | 2005-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006084660A1 true WO2006084660A1 (fr) | 2006-08-17 |
Family
ID=35056878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/001052 WO2006084660A1 (fr) | 2005-02-09 | 2006-02-07 | Procede pour controler le demarrage d’un moteur a combustion interne |
Country Status (5)
Country | Link |
---|---|
US (1) | US7661412B2 (fr) |
KR (1) | KR20070110866A (fr) |
CN (1) | CN101115918B (fr) |
FR (1) | FR2881796B1 (fr) |
WO (1) | WO2006084660A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2950393B1 (fr) * | 2009-09-24 | 2012-02-24 | Peugeot Citroen Automobiles Sa | Procede de determination du cycle d'un moteur a cylindres impair |
AU2011200837B2 (en) * | 2010-02-26 | 2014-12-18 | Clean Air Power, Inc. | Modification of engine control signal timing by emulation of engine position sensors |
CN104564478A (zh) * | 2014-12-25 | 2015-04-29 | 潍柴动力股份有限公司 | 一种发动机及其冷启动系统、方法 |
AT518694B1 (de) * | 2016-05-31 | 2019-08-15 | Avl List Gmbh | Hubkolbenmaschine sowie Verfahren und Vorrichtung zur Diagnose und/oder Steuerung einer Hubkolbenmaschine |
AT518268B1 (de) | 2016-05-31 | 2017-09-15 | Avl List Gmbh | Verfahren und System zur Diagnose und/oder Steuerung einer Hubkolbenmaschine mit einem variablen Verdichtungsverhältnis |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4732122A (en) * | 1985-06-04 | 1988-03-22 | Weber S.P.A. | Starting fuel supply system for an internal combustion engine, comprising an electronic injection system |
US4998522A (en) * | 1988-11-28 | 1991-03-12 | Siemens Aktiengesellschaft | Method for injecting fuel into an internal-combustion engine |
US6230687B1 (en) * | 1997-07-07 | 2001-05-15 | Siemens Automotive S.A. | Method for fuel injection for starting an internal combustion engine |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5749026A (en) * | 1980-09-09 | 1982-03-20 | Nissan Motor Co Ltd | Crank position signal adjusting device |
US5156125A (en) * | 1990-10-11 | 1992-10-20 | Mitsubishi Denki Kabushiki Kaisha | Engine control apparatus |
US5184590A (en) * | 1991-02-12 | 1993-02-09 | Mitsubishi Denki Kabushiki Kaisha | Engine timing control apparatus |
JP3325155B2 (ja) * | 1995-04-21 | 2002-09-17 | 三菱電機株式会社 | 内燃機関制御装置 |
JP3223802B2 (ja) * | 1996-08-09 | 2001-10-29 | 三菱自動車工業株式会社 | 内燃機関の燃料制御装置 |
ES2191734T3 (es) * | 1996-12-03 | 2003-09-16 | Fiat Ricerche | Un metodo para sincronizar un motor de combustion interna sin un sensor de posicion de levas. |
JP3828221B2 (ja) * | 1997-01-16 | 2006-10-04 | 三菱電機株式会社 | 内燃機関の筒内噴射式燃料制御装置及び方法 |
DE19735720A1 (de) * | 1997-08-18 | 1999-02-25 | Bayerische Motoren Werke Ag | Verfahren zur Erkennung des Verbrennungstaktes eines bestimmten Zylinders beim Start einer Brennkraftmaschine |
US6131547A (en) * | 1998-02-27 | 2000-10-17 | Cummins Engine Company, Inc. | Electronic engine speed and position apparatus for camshaft gear applications |
US6560528B1 (en) * | 2000-03-24 | 2003-05-06 | Internal Combustion Technologies, Inc. | Programmable internal combustion engine controller |
DE10120799A1 (de) * | 2001-04-27 | 2002-11-21 | Bosch Gmbh Robert | Verfahren zur Synchronisation einer Verbrennungskraftmaschine anhand der Winkellage eines rotierenden Teils |
AT4801U3 (de) * | 2001-08-22 | 2002-06-25 | Avl List Gmbh | Verfahren und vorrichtung zum bereitstellen eines kurbelwinkelbasierten signalverlaufes |
TWI221880B (en) * | 2001-10-24 | 2004-10-11 | Yamaha Motor Co Ltd | Engine control device |
KR100527440B1 (ko) * | 2002-04-12 | 2005-11-09 | 현대자동차주식회사 | 차량의 엔진 점화시기 제어방법 |
JP4120520B2 (ja) * | 2003-07-28 | 2008-07-16 | 株式会社デンソー | 内燃機関の制御装置 |
US7000598B2 (en) * | 2004-05-27 | 2006-02-21 | General Electric Company | Bumpless crankshift position sensing |
US7185628B1 (en) * | 2005-10-31 | 2007-03-06 | General Motors Corporation | Continuous engine reverse rotation detection system |
US7373928B2 (en) * | 2006-05-31 | 2008-05-20 | Joseph Thomas | Method for starting a direct injection engine |
-
2005
- 2005-02-09 FR FR0501286A patent/FR2881796B1/fr not_active Expired - Fee Related
-
2006
- 2006-02-07 US US11/815,888 patent/US7661412B2/en active Active
- 2006-02-07 KR KR1020077020707A patent/KR20070110866A/ko not_active Application Discontinuation
- 2006-02-07 WO PCT/EP2006/001052 patent/WO2006084660A1/fr not_active Application Discontinuation
- 2006-02-07 CN CN2006800043674A patent/CN101115918B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4732122A (en) * | 1985-06-04 | 1988-03-22 | Weber S.P.A. | Starting fuel supply system for an internal combustion engine, comprising an electronic injection system |
US4998522A (en) * | 1988-11-28 | 1991-03-12 | Siemens Aktiengesellschaft | Method for injecting fuel into an internal-combustion engine |
US6230687B1 (en) * | 1997-07-07 | 2001-05-15 | Siemens Automotive S.A. | Method for fuel injection for starting an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
FR2881796A1 (fr) | 2006-08-11 |
US20080196697A1 (en) | 2008-08-21 |
US7661412B2 (en) | 2010-02-16 |
KR20070110866A (ko) | 2007-11-20 |
CN101115918B (zh) | 2012-09-05 |
CN101115918A (zh) | 2008-01-30 |
FR2881796B1 (fr) | 2007-05-04 |
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