JP2007162496A - 内燃機関の点火時期制御装置 - Google Patents
内燃機関の点火時期制御装置 Download PDFInfo
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- JP2007162496A JP2007162496A JP2005356496A JP2005356496A JP2007162496A JP 2007162496 A JP2007162496 A JP 2007162496A JP 2005356496 A JP2005356496 A JP 2005356496A JP 2005356496 A JP2005356496 A JP 2005356496A JP 2007162496 A JP2007162496 A JP 2007162496A
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- 238000002485 combustion reaction Methods 0.000 title claims description 44
- 238000012937 correction Methods 0.000 claims abstract description 82
- 230000008859 change Effects 0.000 claims description 48
- 238000000034 method Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 12
- 238000001514 detection method Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000010606 normalization Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
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- 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
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1523—Digital data processing dependent on pinking with particular laws of return to advance, e.g. step by step, differing from the laws of retard
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
- G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
- G01L23/225—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines circuit arrangements therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
【解決手段】エンジンECUは、ノッキングの発生頻度に応じて補正される判定値V(KX)の平均値の近似値V(R)と前回算出した近似値V(R−1)との偏差Lが予め定められた値より大きい場合(S306にてNO)、および偏差Lが予め定められた値より小さいと判断された回数が予め定められた回数より少ない場合(S308にてNO)に、判定値V(KX)の補正量をQ倍とするステップ(S310)と、偏差Lが予め定められた値より小さいと判断された回数が予め定められた回数より多い場合(S308にてYES)に、判定値V(KX)の補正量を1/P倍とするステップ(S312)とを含むプログラムを実行する。判定値V(KX)とノック強度とを比較することにより、ノッキングの判定が行なわれ、点火時期の進角や遅角がなされる。
【選択図】図15
Description
Claims (9)
- 内燃機関の点火時期制御装置であって、
前記内燃機関で発生する振動の強度に基づいて、ノッキングに起因する振動の強度に関するノック強度を算出するためのノック強度算出手段と、
前記ノック強度と予め定められた判定値とを比較した結果に基づいて、前記内燃機関の点火時期を制御するための制御手段と、
前記ノッキングの発生頻度に基づいて、前記判定値を補正するための補正手段と、
前記判定値の補正量を、前記判定値の大きさに応じた値に設定するための設定手段とを含む、内燃機関の点火時期制御装置。 - 前記設定手段は、前記判定値が複数回補正されたことによる前記判定値の変化度合に応じた補正量を設定することにより、前記判定値の補正量を前記判定値の大きさに応じた値に設定するための手段を含む、請求項1に記載の内燃機関の点火時期制御装置。
- 前記設定手段は、前記判定値の変化度合が大きい場合は小さい場合に比べて、前記補正量を大きく設定するための手段を含む、請求項2に記載の内燃機関の点火時期制御装置。
- 前記設定手段は、前記判定値の変化度合が予め定められた度合より大きい場合は小さい場合に比べて、前記補正量を大きく設定するための手段を含む、請求項3に記載の内燃機関の点火時期制御装置。
- 前記設定手段は、前記判定値の変化度合が予め定められた度合より小さい場合は大きい場合に比べて、前記補正量を小さく設定するための手段を含む、請求項3または4に記載の内燃機関の点火時期制御装置。
- 前記点火時期制御装置は、
前記判定値の変化度合が予め定められた度合より小さいか否かを判断するための手段をさらに含み、
前記設定手段は、前記判定値の変化度合が予め定められた度合より小さいと判断された回数が予め定められた回数より少ない場合は多い場合に比べて、前記補正量を大きく設定するための手段を含む、請求項2に記載の内燃機関の点火時期制御装置。 - 前記設定手段は、前記判定値の変化度合が予め定められた度合より小さいと判断された回数が予め定められた回数より多い場合は少ない場合に比べて、前記補正量を小さく設定するための手段を含む、請求項6に記載の内燃機関の点火時期制御装置。
- 前記点火時期制御装置は、
第1のタイミングにおいて、前記判定値の平均値に関する第1の値を算出するための手段と、
前記第1のタイミングよりも遅い第2のタイミングにおいて、前記判定値の平均値に関する第2の値を算出するための手段とをさらに含み、
前記判定値の変化度合は、前記第1の値と前記第2の値との差として算出される、請求項2〜7のいずれかに記載の内燃機関の点火時期制御装置。 - 前記補正手段は、前記ノッキングの発生頻度が低い場合は高い場合に比べて、前記判定値をより大きくするように補正するための手段を含む、請求項1〜8のいずれかに記載の内燃機関の点火時期制御装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005356496A JP4314240B2 (ja) | 2005-12-09 | 2005-12-09 | 内燃機関の点火時期制御装置 |
US12/096,390 US8000884B2 (en) | 2005-12-09 | 2006-12-08 | Device and method for controlling ignition timing of internal combustion engine |
DE112006003322.0T DE112006003322B4 (de) | 2005-12-09 | 2006-12-08 | Vorrichtung und Verfahren zum Steuern einer Zündzeitabstimmung einer Brennkraftmaschine |
PCT/JP2006/325007 WO2007066830A1 (ja) | 2005-12-09 | 2006-12-08 | 内燃機関の点火時期制御装置および点火時期制御方法 |
Applications Claiming Priority (1)
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JP2005356496A JP4314240B2 (ja) | 2005-12-09 | 2005-12-09 | 内燃機関の点火時期制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007162496A true JP2007162496A (ja) | 2007-06-28 |
JP4314240B2 JP4314240B2 (ja) | 2009-08-12 |
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JP2005356496A Active JP4314240B2 (ja) | 2005-12-09 | 2005-12-09 | 内燃機関の点火時期制御装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8000884B2 (ja) |
JP (1) | JP4314240B2 (ja) |
DE (1) | DE112006003322B4 (ja) |
WO (1) | WO2007066830A1 (ja) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4314240B2 (ja) * | 2005-12-09 | 2009-08-12 | トヨタ自動車株式会社 | 内燃機関の点火時期制御装置 |
JP4342520B2 (ja) * | 2006-01-27 | 2009-10-14 | トヨタ自動車株式会社 | 内燃機関の点火時期制御装置 |
JP2007211690A (ja) * | 2006-02-09 | 2007-08-23 | Toyota Motor Corp | 内燃機関の点火時期制御装置 |
JP4680248B2 (ja) * | 2007-11-13 | 2011-05-11 | トヨタ自動車株式会社 | 内燃機関の点火時期制御装置および点火時期制御方法 |
US9556810B2 (en) | 2014-12-31 | 2017-01-31 | General Electric Company | System and method for regulating exhaust gas recirculation in an engine |
US9752949B2 (en) | 2014-12-31 | 2017-09-05 | General Electric Company | System and method for locating engine noise |
US9803567B2 (en) | 2015-01-07 | 2017-10-31 | General Electric Company | System and method for detecting reciprocating device abnormalities utilizing standard quality control techniques |
US9874488B2 (en) | 2015-01-29 | 2018-01-23 | General Electric Company | System and method for detecting operating events of an engine |
US9528445B2 (en) | 2015-02-04 | 2016-12-27 | General Electric Company | System and method for model based and map based throttle position derivation and monitoring |
US9903778B2 (en) | 2015-02-09 | 2018-02-27 | General Electric Company | Methods and systems to derive knock sensor conditions |
US9791343B2 (en) | 2015-02-12 | 2017-10-17 | General Electric Company | Methods and systems to derive engine component health using total harmonic distortion in a knock sensor signal |
US10001077B2 (en) | 2015-02-19 | 2018-06-19 | General Electric Company | Method and system to determine location of peak firing pressure |
US9915217B2 (en) | 2015-03-05 | 2018-03-13 | General Electric Company | Methods and systems to derive health of mating cylinder using knock sensors |
US9695761B2 (en) | 2015-03-11 | 2017-07-04 | General Electric Company | Systems and methods to distinguish engine knock from piston slap |
US9435244B1 (en) | 2015-04-14 | 2016-09-06 | General Electric Company | System and method for injection control of urea in selective catalyst reduction |
US9784231B2 (en) | 2015-05-06 | 2017-10-10 | General Electric Company | System and method for determining knock margin for multi-cylinder engines |
US9933334B2 (en) | 2015-06-22 | 2018-04-03 | General Electric Company | Cylinder head acceleration measurement for valve train diagnostics system and method |
US9784635B2 (en) | 2015-06-29 | 2017-10-10 | General Electric Company | Systems and methods for detection of engine component conditions via external sensors |
US10393609B2 (en) | 2015-07-02 | 2019-08-27 | Ai Alpine Us Bidco Inc. | System and method for detection of changes to compression ratio and peak firing pressure of an engine |
US9897021B2 (en) | 2015-08-06 | 2018-02-20 | General Electric Company | System and method for determining location and value of peak firing pressure |
DE102016206054A1 (de) * | 2016-04-12 | 2017-10-12 | Robert Bosch Gmbh | Verfahren und Steuergerät zur Steuerung einer Brennkraftmaschine |
US10371079B2 (en) * | 2016-09-09 | 2019-08-06 | Ford Global Technologies, Llc | Method and system for knock sensor rationality check |
US10760543B2 (en) | 2017-07-12 | 2020-09-01 | Innio Jenbacher Gmbh & Co Og | System and method for valve event detection and control |
US11293395B2 (en) * | 2018-08-02 | 2022-04-05 | Mazda Motor Corporation | Control device for engine |
JP2022157716A (ja) * | 2021-03-31 | 2022-10-14 | 本田技研工業株式会社 | 運転支援装置、運転支援プログラム、運転支援方法 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5841264A (ja) * | 1981-09-07 | 1983-03-10 | Nippon Denso Co Ltd | 内燃機関用点火時期制御装置 |
JPH07113356B2 (ja) * | 1987-06-01 | 1995-12-06 | 日産自動車株式会社 | 内燃機関の点火時期制御装置 |
JPH01196522A (ja) * | 1988-01-30 | 1989-08-08 | Mazda Motor Corp | エンジンのノッキング検出装置 |
JP2730215B2 (ja) * | 1989-10-03 | 1998-03-25 | 株式会社デンソー | エンジン用ノック制御装置 |
JPH0419890A (ja) | 1990-05-11 | 1992-01-23 | Sony Corp | 無線伝送式の音声信号再生装置 |
JPH0472449A (ja) * | 1990-07-10 | 1992-03-06 | Fuji Heavy Ind Ltd | エンジンの失火診断装置 |
JPH04103877A (ja) | 1990-08-24 | 1992-04-06 | Mitsubishi Electric Corp | 内燃機関用ノック制御装置 |
JPH04219465A (ja) * | 1990-12-20 | 1992-08-10 | Nippondenso Co Ltd | 内燃機関のノック制御装置 |
JP3084889B2 (ja) * | 1992-03-12 | 2000-09-04 | 株式会社デンソー | 内燃機関用ノック制御装置 |
JP3357091B2 (ja) * | 1992-07-21 | 2002-12-16 | 富士重工業株式会社 | エンジンの失火検出方法 |
JPH08151951A (ja) * | 1994-11-29 | 1996-06-11 | Toyota Motor Corp | 内燃機関のノッキング制御装置 |
DE19737257A1 (de) * | 1997-08-27 | 1999-03-04 | Bosch Gmbh Robert | Verfahren zur Klopfregelung in Zündanlagen für Brennkraftmaschinen |
DE19755257A1 (de) * | 1997-12-12 | 1999-06-24 | Daimler Chrysler Ag | Verfahren zur Erkennung von klopfender Verbrennung aus einem Ionenstromsignal bei Brennkraftmaschinen |
JP3595217B2 (ja) * | 1999-10-06 | 2004-12-02 | 三菱電機株式会社 | 内燃機関のノック検出装置 |
JP4465928B2 (ja) | 2001-07-04 | 2010-05-26 | 株式会社デンソー | 内燃機関のノック制御装置 |
JP4560241B2 (ja) * | 2001-06-06 | 2010-10-13 | 富士通テン株式会社 | 内燃機関のノッキング判定装置 |
JP3655890B2 (ja) * | 2002-05-17 | 2005-06-02 | 三菱電機株式会社 | 内燃機関のノック制御装置 |
JP4297734B2 (ja) | 2003-05-28 | 2009-07-15 | 株式会社デンソー | 内燃機関のノック制御装置 |
JP4165751B2 (ja) | 2003-07-03 | 2008-10-15 | 株式会社デンソー | 内燃機関のノック検出装置 |
JP4103877B2 (ja) | 2004-09-22 | 2008-06-18 | セイコーエプソン株式会社 | 静電型超音波トランスデューサ及び超音波スピーカ |
JP4452660B2 (ja) * | 2005-06-28 | 2010-04-21 | トヨタ自動車株式会社 | ノッキング状態判定装置 |
JP4538383B2 (ja) * | 2005-06-28 | 2010-09-08 | トヨタ自動車株式会社 | 内燃機関の点火時期制御装置 |
JP4314240B2 (ja) * | 2005-12-09 | 2009-08-12 | トヨタ自動車株式会社 | 内燃機関の点火時期制御装置 |
JP4342520B2 (ja) * | 2006-01-27 | 2009-10-14 | トヨタ自動車株式会社 | 内燃機関の点火時期制御装置 |
JP4422693B2 (ja) * | 2006-03-20 | 2010-02-24 | トヨタ自動車株式会社 | 内燃機関の点火時期制御装置 |
-
2005
- 2005-12-09 JP JP2005356496A patent/JP4314240B2/ja active Active
-
2006
- 2006-12-08 US US12/096,390 patent/US8000884B2/en active Active
- 2006-12-08 DE DE112006003322.0T patent/DE112006003322B4/de not_active Expired - Fee Related
- 2006-12-08 WO PCT/JP2006/325007 patent/WO2007066830A1/ja active Application Filing
Also Published As
Publication number | Publication date |
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WO2007066830A1 (ja) | 2007-06-14 |
DE112006003322B4 (de) | 2017-12-07 |
US20090165746A1 (en) | 2009-07-02 |
DE112006003322T5 (de) | 2008-10-23 |
JP4314240B2 (ja) | 2009-08-12 |
US8000884B2 (en) | 2011-08-16 |
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