EP1073843B1 - Verfahren und vorrichtung zur phasenerkennung an einem 4-takt ottomotor mit ionenstrommessung - Google Patents

Verfahren und vorrichtung zur phasenerkennung an einem 4-takt ottomotor mit ionenstrommessung Download PDF

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Publication number
EP1073843B1
EP1073843B1 EP99926255A EP99926255A EP1073843B1 EP 1073843 B1 EP1073843 B1 EP 1073843B1 EP 99926255 A EP99926255 A EP 99926255A EP 99926255 A EP99926255 A EP 99926255A EP 1073843 B1 EP1073843 B1 EP 1073843B1
Authority
EP
European Patent Office
Prior art keywords
ignition
spark
cylinder
produced
ion current
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.)
Expired - Lifetime
Application number
EP99926255A
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German (de)
English (en)
French (fr)
Other versions
EP1073843A1 (de
Inventor
Markus Ketterer
Klaus-Jürgen WALD
Achim GÜNTHER
Jüergen FOERSTER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1073843A1 publication Critical patent/EP1073843A1/de
Application granted granted Critical
Publication of EP1073843B1 publication Critical patent/EP1073843B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current
    • 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

  • Modern internal combustion engines are operated by means of an ECU (Electronic Control Unit) regulated and controlled. If the engine Injectors are then operated electrically by the ECU it is necessary to change the phase at the start of the Determine internal combustion engine.
  • the phase detection gives a 4-stroke gasoline engine, whether the piston is in the Upward movement in the compression stroke or in the discharge stroke located.
  • An ignition device is also known from US Pat. No. 5,067,462 known an ion current measurement. Based on the ion current measurement can be determined whether an ignitable in a cylinder Mixture was present or not.
  • EP 9 33 525 A1 describes a device and a method for cylinder detection in an internal combustion engine. There the success or failure of an ignition becomes primary detected.
  • the present invention relates to a method with Phase detection using an ion current measuring circuit performs.
  • the present method is illustrated in FIG. 1 using an exemplary embodiment. It uses the means 3 of the ion current measurement, by means of which the ignition, means 2, is observed. Means 2 usually serve to start the combustion process 1. If a spark arises at the spark plug and if ion current is measured on this spark plug during this time, then the spark current can be detected with the aid of means 3. The detection of an ignition spark can be used to determine the phase. According to the Paschen law, it is known that the higher the pressure between the electrodes, the higher the ignition voltage. If the engine is turned by the starter, the gas in the combustion chamber is compressed every 720 ° KW. This increase in pressure in the compressed gas, into which the fuel has not yet been injected, leads to an increased ignition voltage.
  • the difference between high and low ignition voltage can be determined by the ignition energy. If only enough energy is made available to the system that it is sufficient for ignition in the areas of low pressure, but not in the high pressure, then a distinctive feature can be formed by analyzing the spark current. If no ignition spark has jumped, then only the primary and secondary stray capacitance will be charged and in the next step the energy is fed back into the vehicle electrical system via the freewheeling diode D located in the igniter or externally. One will measure a very short ion current, which is simulated by the spark current.
  • the switch-off current provided with a sufficient signal-to-noise ratio is determined with a series of ignition sparks, so that ignition takes place safely. This adjustment may span 10 iterations. It is possible that some cylinders are currently in a compressed state. In this case the necessary energy level is incorrectly determined. At least half of the cylinders are in a sufficiently uncompressed state, so that there is still sufficient redundancy in this case as well.
  • the phase detection and ignition control is carried out continuously on all cylinders with the help of the ion current measuring circuit. After the ignition has been output, the ascertained feature value is recorded by the ECU as required and it is classified into whether the ignition has taken place or not.
  • the ion current measuring device can in any case detect a part of the spark current, and as a rule is fully controlled thereby. If an attempt is made to ignite according to the adjusted energy level, the ion current is integrated for the duration of an ignition spark, the result is recorded by a sample and hold and made available to the ECU.
  • An alternative possibility of the feature detection is to realize that the measured signal is low-pass filtered and observed with a peak value detection. The peak value is supplied to the ECU, this peak value is then compared with a threshold.
  • FIG. 3 shows an example of the signals occurring on the inductive ignition system. A distinction is made between “no ignition” and “ignition”. The following are shown: the secondary current which flows in L 2 (see FIG. 2); the ion current which is measured with the ion current measuring device and, for example, the low-pass signal of the measured ion current, which is intended to show the formation of features.
  • the ignition energy is introduced into the ignition coil via the primary side by closing the transistor.
  • the ignition transistor T is switched to high resistance and the energy in the coil now drives a current in the primary and secondary windings.
  • the current in the secondary winding is called i sec and can be seen in the first diagram.
  • the entire arrangement behaves like an LC resonant circuit with one coil each on the primary and secondary side.
  • the capacities are formed in each case by spreading and component capacities. On the secondary side, these are coil capacity, cable capacity and candle capacity.
  • the freewheeling diode D begins to conduct on the primary side and feeds the rest of the energy back into the battery. The energy is also withdrawn on the secondary side and the current flow quickly stops. Since the ion currents are very small, the signal level of the ion current measurement i ion is immediately maximally controlled. If the ion current signal i ion is low-pass filtered TP ⁇ i ion ⁇ , then only a low signal level is reached.
  • the low-pass filtered ion current signal TP ⁇ i ion ⁇ reaches a significantly higher level than the signal when the ignition has not occurred. The two cases are easy to distinguish from the ECU.
  • the core of the invention is the use of the ion current measurement for ignition spark observation and the phase detection derived therefrom. If an ion current measurement is available on a vehicle, phase detection can be installed with little additional technical effort. Since the process is based on existing resources, it is extremely cost-effective.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP99926255A 1998-04-20 1999-04-16 Verfahren und vorrichtung zur phasenerkennung an einem 4-takt ottomotor mit ionenstrommessung Expired - Lifetime EP1073843B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19817447A DE19817447A1 (de) 1998-04-20 1998-04-20 Verfahren und Vorrichtung zur Phasenerkennung an einem 4-Takt Ottomotor mit Ionenstrommessung
DE19817447 1998-04-20
PCT/DE1999/001147 WO1999054622A1 (de) 1998-04-20 1999-04-16 Verfahren und vorrichtung zur phasenerkennung an einem 4-takt ottomotor mit ionenstrommessung

Publications (2)

Publication Number Publication Date
EP1073843A1 EP1073843A1 (de) 2001-02-07
EP1073843B1 true EP1073843B1 (de) 2002-08-07

Family

ID=7865103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99926255A Expired - Lifetime EP1073843B1 (de) 1998-04-20 1999-04-16 Verfahren und vorrichtung zur phasenerkennung an einem 4-takt ottomotor mit ionenstrommessung

Country Status (6)

Country Link
US (1) US6584955B1 (ja)
EP (1) EP1073843B1 (ja)
JP (1) JP2002512343A (ja)
KR (1) KR20010042831A (ja)
DE (2) DE19817447A1 (ja)
WO (1) WO1999054622A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012213539A1 (de) * 2012-08-01 2014-02-06 Robert Bosch Gmbh Verfahren zur Bestimmung einer Phasenlage einer verstellbaren Nockenwelle

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817447A1 (de) * 1998-04-20 1999-10-21 Bosch Gmbh Robert Verfahren und Vorrichtung zur Phasenerkennung an einem 4-Takt Ottomotor mit Ionenstrommessung
KR20030041470A (ko) * 2001-11-20 2003-05-27 현대자동차주식회사 내연기관의 기통 판별방법
DE10201164A1 (de) * 2002-01-15 2003-08-14 Bosch Gmbh Robert Verfahren und Vorrichtung zur Erkennung einer Phase eines Viertakt-Ottomotors
DE10208942A1 (de) * 2002-02-28 2003-09-11 Siemens Ag Verfahren zur Bestimmung des Einspritzzeitpunktes sowie System zur Durchführung desselben
US8584650B2 (en) 2007-11-07 2013-11-19 Ford Global Technologies, Llc Ignition energy control for mixed fuel engine
WO2018179244A1 (ja) * 2017-03-30 2018-10-04 マーレエレクトリックドライブズジャパン株式会社 エンジンの点火方法及びエンジン用点火装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1073843A1 (de) * 1998-04-20 2001-02-07 Robert Bosch Gmbh Verfahren und vorrichtung zur phasenerkennung an einem 4-takt ottomotor mit ionenstrommessung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03134247A (ja) * 1989-10-19 1991-06-07 Mitsubishi Electric Corp 内燃機関制御装置及び方法
US5174267A (en) * 1991-07-22 1992-12-29 Ford Motor Company Cylinder identification by spark discharge analysis for internal combustion engines
JP2909345B2 (ja) * 1993-03-23 1999-06-23 三菱電機株式会社 内燃機関制御装置
IT1268605B1 (it) * 1994-09-30 1997-03-06 Marelli Autronica Dispositivo di sincronizzazione per un motore termico senza sensore di posizione camma.
SE508753C2 (sv) * 1995-10-24 1998-11-02 Saab Automobile Förfarande och anordning för att identifiera vilken förbränningskammare hos en förbränningsmotor som befinner sig i kompressionstakt samt förfarande för att starta en förbränningsmotor
US5777216A (en) * 1996-02-01 1998-07-07 Adrenaline Research, Inc. Ignition system with ionization detection
DE19608526C2 (de) * 1996-03-06 2003-05-15 Bremi Auto Elek K Bremicker Gm Verfahren zur Regelung der Mindestzündenergie bei einer Brennkraftmaschine
SE507393C2 (sv) * 1996-11-18 1998-05-25 Mecel Ab Arrangemang och förfarande för kommunikation mellan tändmodul och styrenhet i en förbränningsmotors tändsystem
JPH10252635A (ja) * 1997-03-17 1998-09-22 Hitachi Ltd 故障診断装置付きエンジン燃焼状態検出装置
JPH1113619A (ja) * 1997-06-25 1999-01-19 Denso Corp 内燃機関の燃焼状態検出装置
DE19727004A1 (de) * 1997-06-25 1999-01-07 Bosch Gmbh Robert Verfahren und Vorrichtung zur Erkennung von Zündaussetzern einer Brennkraftmaschine
EP0933525B1 (de) 1998-02-03 2003-10-01 VOGT electronic AG Vorrichtung und Verfahren zur Zylindererkennung in einer Brennkraftmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1073843A1 (de) * 1998-04-20 2001-02-07 Robert Bosch Gmbh Verfahren und vorrichtung zur phasenerkennung an einem 4-takt ottomotor mit ionenstrommessung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012213539A1 (de) * 2012-08-01 2014-02-06 Robert Bosch Gmbh Verfahren zur Bestimmung einer Phasenlage einer verstellbaren Nockenwelle

Also Published As

Publication number Publication date
DE19817447A1 (de) 1999-10-21
WO1999054622A1 (de) 1999-10-28
US6584955B1 (en) 2003-07-01
DE59902273D1 (de) 2002-09-12
KR20010042831A (ko) 2001-05-25
EP1073843A1 (de) 2001-02-07
JP2002512343A (ja) 2002-04-23

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