EP0262166A1 - Process for identifying the working cycle of a cylinder in an internal combustion engine. - Google Patents
Process for identifying the working cycle of a cylinder in an internal combustion engine.Info
- Publication number
- EP0262166A1 EP0262166A1 EP19870901383 EP87901383A EP0262166A1 EP 0262166 A1 EP0262166 A1 EP 0262166A1 EP 19870901383 EP19870901383 EP 19870901383 EP 87901383 A EP87901383 A EP 87901383A EP 0262166 A1 EP0262166 A1 EP 0262166A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- internal combustion
- combustion engine
- cylinder
- signals
- 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.)
- Granted
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
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
- F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
- F02P7/0675—Electromagnetic pick-up devices, e.g. providing induced current in a coil with variable reluctance, e.g. depending on the shape of a tooth
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
- F02P7/077—Circuits therefor, e.g. pulse generators
- F02P7/0775—Electronical verniers
-
- 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
- F02D41/009—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 recognizing the operating cycle of a cylinder of an internal combustion engine according to the preamble of the main claim.
- an encoder is usually provided for this purpose, which responds to a mark attached to the camshaft of the internal combustion engine.
- this encoder signal is linked to a signal from a speed encoder that responds to marks on an encoder disk rotating with the crankshaft.
- An electronic ignition system is known from US Pat. No. 3,592,178, in which ignition angle control and cylinder detection an encoder disc rotating synchronously with the distributor finger of the ignition distributor is used.
- One encoder is provided for continuous rotation angle information, another encoder is provided for cylinder detection.
- the present invention is based on the object of finding a method for recognizing the operating cycle of a cylinder of an internal combustion engine, which has the high accuracy of the angular resolution of an encoder system and whose encoder wheel is located directly on the crankshaft of the internal combustion engine.
- the method according to the invention with the characterizing features of the main claim has the particular advantage that it needs only one encoder. This is noticeable on the cost side. Another particular advantage is that the operational reliability of the system is increased, since the number of possible failures is reduced due to the reduced number of system components.
- Figure 1 shows a signal diagram to explain the mode of operation
- Figure 2 shows a circuit diagram of the embodiment.
- FIG. 1 In the first line of FIG. 1, an ignition sequence Z of a running five-cylinder internal combustion engine is shown during two crankshaft revolutions above the elapsed crankshaft angle. The firing order 1-2-4-5-3 of the individual cylinders is also given. It can be seen from this that a distance of two crankshaft revolutions is necessary from one working cycle of a cylinder to the next.
- the illustration in FIG. 1 corresponds almost exactly to the behavior of the internal combustion engine during a quiet idling operation.
- the second line of FIG. 1 shows a signal SK which originates from an encoder which responds to a label attached to an encoder disk which rotates synchronously with the crankshaft.
- the signal SK thus corresponds to a pulse sequence which is formed by a sequence of individual pulses which are triggered every full revolution of the encoder disk.
- the third line of FIG. 1 shows a signal SM which is proportional to the instantaneous speed of the crankshaft.
- the signal SM is composed of a constant component SN, which is superimposed on an oscillation resulting from the combustion processes in the internal combustion engine. During each work cycle of a cylinder, the crankshaft of the internal combustion engine is accelerated, while the other cylinders are in the compression, exhaust or intake cycle and consume power.
- the ripple of the signal SM comes about as a result of the successive change of the individual cylinders in the firing order, which are in a fixed phase relationship to one another via the crankshaft.
- a signal SD is drawn in, which has arisen from a digital comparison of the signal SM with its own direct component SN. That is, the signal SD changes its state each time the modulated signal SM becomes larger or smaller than its own mean value SN.
- FIG. 2 shows an encoder disk 1 which corresponds to an encoder disk on the internal combustion engine that actually rotates with the crankshaft.
- the encoder disc 1 has a reference mark 11 and further angle marks 12.
- the reference mark 11 simply consists of an angle mark 12 which has been divided for reference recognition.
- a transmitter 2 is attached, the output signal of which is fed to a converter amplifier 3.
- the converter amplifier 3 processes the voltage signals induced in the transmitter 2 into signals SM and SK, as shown in FIG. 1.
- the signal SM appears at an output 31 and the signal SK at an output 32 of the converter amplifier 3.
- the signal SM is passed on the one hand to a low-pass filter 4 and on the other hand to the inverting input of a comparator 5.
- the comparator 5 has a low hysteresis, ie it represents a Schmitt trigger.
- the low-pass filter 4 forms the direct component SN of the signal SM at its output in accordance with the representations in FIG. 1.
- the logic stage 6 thus represents an AND stage with an inverting input.
- the signals SE and SN can be tapped at two signal terminals 7, 8 for further processing, which is not shown for reasons of simplification.
- the circuit shown in FIG. 2 can also be implemented in the software of a microcomputer. Last but not least, this solution is also available This is because the output signals of the encoder 2 are already in a form that is well suited for digital processing.
- the signals of an increment system are used for cylinder detection according to the invention.
- Pressure signals in the intake tract, in the combustion chamber or in an exhaust pipe are particularly suitable.
- battery voltage, temperature and mechanical vibrations of the motor are also suitable physical quantities.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Measuring Fluid Pressure (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Dans le procédé ci-décrit, la comparaison d'un signal synchronisé avec l'angle du vilebrequin et d'un signal modulé par les processus de combustion du moteur à combustion interne permet de déterminer si un cylindre se trouve exactement dans le temps moteur.In the method described above, the comparison of a signal synchronized with the angle of the crankshaft and a signal modulated by the combustion processes of the internal combustion engine makes it possible to determine whether a cylinder is exactly in engine time.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863611262 DE3611262A1 (en) | 1986-04-04 | 1986-04-04 | METHOD FOR DETECTING THE WORKING STATE OF A CYLINDER OF AN INTERNAL COMBUSTION ENGINE |
DE3611262 | 1986-04-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0262166A1 true EP0262166A1 (en) | 1988-04-06 |
EP0262166B1 EP0262166B1 (en) | 1992-06-10 |
Family
ID=6297892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87901383A Expired - Lifetime EP0262166B1 (en) | 1986-04-04 | 1987-03-06 | Process for identifying the working cycle of a cylinder in an internal combustion engine |
Country Status (5)
Country | Link |
---|---|
US (1) | US4889094A (en) |
EP (1) | EP0262166B1 (en) |
JP (1) | JPH086633B2 (en) |
DE (2) | DE3611262A1 (en) |
WO (1) | WO1987005971A1 (en) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5402675A (en) * | 1990-01-26 | 1995-04-04 | Robert Bosch Gmbh | Method for recognizing the power stroke of a four-stroke engine |
DE4002228C2 (en) * | 1990-01-26 | 1995-07-27 | Bosch Gmbh Robert | Process for recognizing the working stroke in a four-stroke engine |
US5027785A (en) * | 1990-04-19 | 1991-07-02 | Motorola, Inc. | Simplified ignition system for multi-cylinder engines |
US5370099A (en) * | 1990-08-24 | 1994-12-06 | Robert Bosch Gmbh | Ignition system for internal combustion engines |
US5165271A (en) * | 1991-03-29 | 1992-11-24 | Cummins Electronics | Single sensor apparatus and method for determining engine speed and position |
DE4114797C2 (en) * | 1991-05-07 | 2003-08-28 | Bosch Gmbh Robert | Method and device for working cycle detection in a four-stroke engine |
US5174267A (en) * | 1991-07-22 | 1992-12-29 | Ford Motor Company | Cylinder identification by spark discharge analysis for internal combustion engines |
DE4129344C2 (en) * | 1991-09-04 | 2001-08-16 | Bosch Gmbh Robert | Device for detecting the angle of rotation of two rotating parts |
JPH05163997A (en) * | 1991-12-10 | 1993-06-29 | Mitsubishi Electric Corp | Device and mehtod for controlling internal combustion engine |
US5493496A (en) * | 1992-12-15 | 1996-02-20 | Ford Motor Company | Cylinder number identification on a distributorless ignition system engine lacking CID |
US5613473A (en) * | 1993-08-26 | 1997-03-25 | Siemens Aktiengesellschaft | Method of identifying the stroke positions in an internal combustion engine upon startup |
JP3186545B2 (en) * | 1995-10-06 | 2001-07-11 | 三菱電機株式会社 | 4-cycle internal combustion engine controller |
DE19638010A1 (en) * | 1996-09-18 | 1998-03-19 | Bosch Gmbh Robert | Method for determining the phase position in a 4-stroke internal combustion engine |
DE69626122T2 (en) * | 1996-12-03 | 2003-08-21 | C.R.F. S.C.P.A., Orbassano | Method for synchronizing an internal combustion engine without a camshaft position sensor |
DE19652896B4 (en) * | 1996-12-19 | 2004-01-29 | Vogt Electronic Aktiengesellschaft | Device and method for cylinder recognition in an internal combustion engine |
JP3839119B2 (en) * | 1997-02-13 | 2006-11-01 | 本田技研工業株式会社 | 4-cycle engine stroke discrimination device |
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 |
EP1050676A3 (en) * | 1999-05-05 | 2002-06-05 | Delphi Technologies, Inc. | Engine position sensing |
JP4093682B2 (en) * | 1999-05-28 | 2008-06-04 | 本田技研工業株式会社 | 4-cycle engine stroke discrimination device |
DE10015595A1 (en) * | 2000-03-29 | 2001-10-04 | Bayerische Motoren Werke Ag | 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 |
SE518102C2 (en) * | 2000-04-14 | 2002-08-27 | Scania Cv Ab | Methods and apparatus for determining where in their duty cycles an internal combustion engine cylinders are located |
DE10036436C2 (en) * | 2000-07-26 | 2002-06-13 | Siemens Ag | Method for synchronizing an internal combustion engine |
EP1197656B1 (en) * | 2000-10-12 | 2008-02-20 | Kabushiki Kaisha Moric | Engine control method and apparatus |
US6542798B2 (en) * | 2000-12-06 | 2003-04-01 | Ford Global Technologies, Inc. | Engine ready signal using peak engine cylinder pressure detection |
FR2821887B1 (en) * | 2001-03-07 | 2003-08-15 | Siemens Automotive Sa | METHOD FOR DETECTING THE CYCLE PHASE OF AN INTERNAL COMBUSTION ENGINE WITH NUMBER OF ODD CYLINDERS |
DE10113194A1 (en) * | 2001-03-19 | 2002-09-26 | Volkswagen Ag | Detecting working cycle of internal combustion engine cylinder involves detecting pressure variation in cylinder, differentiating, identifying compression cycle if differential has null crossing |
DE10116485B4 (en) * | 2001-04-03 | 2007-01-11 | Bayerische Motoren Werke Ag | Device and method for determining the engine speed of an internal combustion engine |
JP2006037944A (en) * | 2004-06-24 | 2006-02-09 | Yamaha Motor Co Ltd | Stroke discrimination device of four-stroke cycle engine |
JP4420348B2 (en) * | 2005-03-29 | 2010-02-24 | 本田技研工業株式会社 | 4-cycle engine stroke discrimination device |
JP4825783B2 (en) * | 2007-12-07 | 2011-11-30 | 本田技研工業株式会社 | Engine control method |
JP2009236036A (en) * | 2008-03-27 | 2009-10-15 | Aisin Seiki Co Ltd | Single cylinder four cycle engine |
JP5359932B2 (en) | 2010-02-26 | 2013-12-04 | 日産自動車株式会社 | 4-stroke cycle internal combustion engine and cylinder discrimination method thereof |
DE102011086124B3 (en) * | 2011-11-10 | 2013-01-31 | Continental Automotive Gmbh | Method for cylinder detection in an internal combustion engine and control unit |
CN102678362A (en) * | 2012-05-16 | 2012-09-19 | 联合汽车电子有限公司 | System of phase-free sensor for identifying one cylinder compression TDC (Top Dead Center) of three-cylinder engine |
WO2014010164A1 (en) * | 2012-07-09 | 2014-01-16 | Yamaha Hatsudoki Kabushiki Kaisha | Synchronisation system for an internal combustion engine with a toothed wheel with more than two reference positions |
DE102014206182A1 (en) * | 2014-04-01 | 2015-10-01 | Robert Bosch Gmbh | Method for determining a crankshaft position of an internal combustion engine |
US9617935B2 (en) * | 2014-06-18 | 2017-04-11 | Startec Ltd. | Small engine control system and method for enabling the use of traditional crankshaft |
US9500175B2 (en) * | 2014-06-18 | 2016-11-22 | Startec Ltd. | Motorcycle engine control system and method for enabling the use of traditional crankshaft |
DE102018200521A1 (en) * | 2018-01-15 | 2019-07-18 | Robert Bosch Gmbh | Method for determining a position of an internal combustion engine |
DE102018200527A1 (en) * | 2018-01-15 | 2019-07-18 | Robert Bosch Gmbh | Method for determining a position of an internal combustion engine |
DE102018200526A1 (en) * | 2018-01-15 | 2019-07-18 | Robert Bosch Gmbh | Method for detecting a starting mode of an internal combustion engine |
FR3083572A1 (en) * | 2018-07-06 | 2020-01-10 | Continental Automotive France | CRANKSHAFT TARGET WITH NUT TOOTH AND METHOD FOR SYNCHRONIZING AN INTERNAL COMBUSTION ENGINE |
EP4219925A3 (en) | 2022-01-31 | 2023-08-09 | BRP-Rotax GmbH & Co. KG | Method for managing start up of a four-stroke engine |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7215676A (en) * | 1971-12-04 | 1973-06-06 | ||
DE2357061C2 (en) * | 1973-11-15 | 1985-02-14 | Robert Bosch Gmbh, 7000 Stuttgart | Device for the delivery of uniform pulses at certain angular positions of a rotatable shaft and for the formation of at least one reference signal |
FR2374528A1 (en) * | 1976-12-17 | 1978-07-13 | Cii | ELECTRONIC IGNITION SYSTEM AND INTERNAL COMBUSTION ENGINE EQUIPPED WITH SUCH A SYSTEM |
JPS5436961A (en) * | 1977-08-29 | 1979-03-19 | Nissan Motor | Angleeoffrotation detector |
JPS6027363B2 (en) * | 1978-03-01 | 1985-06-28 | 株式会社日立製作所 | Rotation angle detection device |
FR2428152B1 (en) * | 1978-06-07 | 1987-04-10 | Bosch Gmbh Robert | DEVICE FOR CONTROLLING FUNCTIONAL PROCESSES OF REPETITIVE PARAMETERS FOR INTERNAL COMBUSTION ENGINES |
DE2842998C2 (en) * | 1978-10-03 | 1986-09-25 | Robert Bosch Gmbh, 7000 Stuttgart | Device for generating speed-dependent control signals, in particular for ignition systems with a dwell angle control device for internal combustion engines |
DE2927538C2 (en) * | 1979-07-07 | 1984-08-23 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Device for generating a reference signal corresponding to a specific working state of a four-stroke internal combustion engine |
US4429365A (en) * | 1981-08-10 | 1984-01-31 | General Motors Corporation | Spark timing control system |
JPS6073059A (en) * | 1983-09-28 | 1985-04-25 | Mitsubishi Electric Corp | Igniter for internal-combustion engine |
JPS60148909U (en) * | 1984-03-14 | 1985-10-03 | 日産自動車株式会社 | Crank angle detection device |
IT8467667A0 (en) * | 1984-06-29 | 1984-06-29 | Marelli Autronica | SENSOR TO DETECT THE PASSAGE OF A PISTON OR A GROUP OF PISTONS OF AN INTERNAL COMBUSTION ENGINE INTO THE TOP DEAD CENTER POSITION |
-
1986
- 1986-04-04 DE DE19863611262 patent/DE3611262A1/en not_active Withdrawn
-
1987
- 1987-03-06 JP JP62501670A patent/JPH086633B2/en not_active Expired - Fee Related
- 1987-03-06 EP EP87901383A patent/EP0262166B1/en not_active Expired - Lifetime
- 1987-03-06 WO PCT/DE1987/000100 patent/WO1987005971A1/en active IP Right Grant
- 1987-03-06 DE DE8787901383T patent/DE3779713D1/en not_active Expired - Lifetime
- 1987-03-06 US US07/138,845 patent/US4889094A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO8705971A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0262166B1 (en) | 1992-06-10 |
US4889094A (en) | 1989-12-26 |
DE3779713D1 (en) | 1992-07-16 |
WO1987005971A1 (en) | 1987-10-08 |
DE3611262A1 (en) | 1987-10-08 |
JPS63502844A (en) | 1988-10-20 |
JPH086633B2 (en) | 1996-01-29 |
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