JP2008175140A - 内燃機関の吸気系の異常判定装置 - Google Patents
内燃機関の吸気系の異常判定装置 Download PDFInfo
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- G01M15/00—Testing of engines
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- G01M15/09—Testing internal-combustion engines by monitoring pressure in fluid ducts, e.g. in lubrication or cooling parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/107—Safety-related aspects
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- 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
- F02D41/0002—Controlling intake air
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- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
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- 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
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
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- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
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- 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
- F02D41/0002—Controlling intake air
- F02D2041/001—Controlling intake air for engines with variable valve actuation
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- 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
- F02D41/0002—Controlling intake air
- F02D2041/002—Controlling intake air by simultaneous control of throttle and variable valve actuation
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- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1418—Several control loops, either as alternatives or simultaneous
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- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
- F02D2041/225—Leakage detection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
- F02D2200/0408—Estimation of intake manifold pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/41—Control to generate negative pressure in the intake manifold, e.g. for fuel vapor purging or brake booster
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- 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
- F02D41/08—Introducing corrections for particular operating conditions for idling
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- 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
- Y02T10/12—Improving ICE efficiencies
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- 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
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Abstract
【解決手段】本発明の提供する内燃機関の吸気系の異常を判定する装置は、現在の吸入空気量に基づいてスロットル開口面積を求める手段と、吸気管内のゲージ圧が目標ゲージ圧になるようにスロットル開口面積の補正量を求め、この補正量をスロットル開口面積に加算してスロットル開口面積をフィードバック補正する手段と、排気管に設置される空燃比検出手段の検出値に基づいて空燃比の補正量を求めることにより空燃比をフィードバック制御する手段と、アイドル運転中に、スロットル開口面積の補正量および空燃比の補正量に基づいて吸気系の異常を判定する手段と、を有する。
【選択図】図2
Description
ここで、θはモデルパラメータであり、次式のように表される。
ここで、Pは同定ゲインであり、例えば0.01である。eは次式のように表される。
このように導出された有効吸入空気量Qeは、実吸入空気量Qまたは目標吸入空気量Qdに基づいてスロットル開度を制御する際のそれぞれの長所を両立することができる。実吸入空気量Qは、スロットル46の上流に設置されたエアフローメータ50によって検出されるので、2次エアの流入の影響を受けることなく必要なスロットル開度を精度良く推定できるという長所があるが、スロットルの変動に応じてその値も変動するので、推定されるスロットル開度が安定しないという短所がある。目標吸入空気量Qdは、スロットル開度を導出パラメータとして用いないので、スロットル変動の干渉を受けないという長所があるが、2次エア流入時にはスロットルを通過する空気量が正確にわからなくなるので、スロットル開度の推定精度が低下するという短所がある。有効吸入空気量Qeに基づいてスロットル開度を制御することにより、2次エア流入時に制御の精度を維持することと、スロットルとの干渉を回避することが同時に実現できる。
E=PBGA―PBGA_d (10)
次に、以下に示す切り替え関数を用いて、切り替え関数値σを算出する。
σ=E(今回値)+pole×E(前回値) (11)
ここで、poleは偏差Eの収束速度を規定するパラメータである。パラメータpoleは、フィードバック開始後カウンタに応じて設定される。例えば、パラメータpoleは、時間経過に伴い大きな値をとるよう設定することにより、偏差の収束速度を段階的に速くすることができる。
14 吸気バルブ
40 可変動弁機構
42 可変リフト機構
46 スロットル弁
52 吸気管内圧力センサ
54 吸気温度センサ
56 大気圧センサ
62 有効吸入空気量算出部
64 基準スロットル開口面積算出部
66 スロットル開口面積補正部
68 フィードバック補正部
69 空燃比制御部
70 スロットル開度算出部
71 異常判定部
Claims (4)
- 少なくとも吸気バルブのリフト量を連続的に調節して吸入空気量を制御する可変動弁機構と、吸気管内のゲージ圧を所定の目標ゲージ圧に保持するためのスロットル弁と、を備える内燃機関の吸気系の異常を判定する装置であって、
現在の吸入空気量に基づいてスロットル開口面積を求める手段と、
前記吸気管内のゲージ圧が前記目標ゲージ圧になるように前記スロットル開口面積の補正量を求め、該補正量を前記求められたスロットル開口面積に加算して、前記スロットル開口面積をフィードバック補正する手段と、
排気管に設置される空燃比検出手段の検出値に基づいて空燃比の補正量を求めることにより空燃比をフィードバック制御する手段と、
アイドル運転中に、前記スロットル開口面積の補正量および前記空燃比の補正量に基づいて吸気系の異常を判定する手段と、
を有する装置。 - 前記異常を判定する手段は、前記スロットル開口面積の補正量が第1の判定値より大きく、前記空燃比の補正量が第2の判定値以下のとき、前記スロットル弁に異常があると判定する、請求項1に記載の装置。
- 前記異常を判定する手段は、前記スロットル開口面積の補正量が第1の判定値より大きく、前記空燃比の補正量が第2の判定値より大きいとき、吸気管内圧力の計測手段に異常があると判定する、請求項1に記載の装置。
- 前記異常を判定する手段は、前記スロットル開口面積の補正量が第1の判定値以下であり、前記空燃比の補正量が第2の判定値以下であり、前記内燃機関の回転数、吸気管内圧力、および前記リフト量から導出される推定吸入空気量と、吸入空気量検出手段によって検出される実吸入空気量との偏差が第3の判定値より大きいとき、吸気二次エアが生じていると判定する、請求項1に記載の装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007009445A JP4303757B2 (ja) | 2007-01-18 | 2007-01-18 | 内燃機関の吸気系の異常判定装置 |
| EP08000175A EP1947313B1 (en) | 2007-01-16 | 2008-01-07 | Determination of abnormality of an intake air system of an internal combustion engine |
| DE200860006613 DE602008006613D1 (de) | 2007-01-16 | 2008-01-07 | Bestimmung der Anomalität eines Luftansaugsystems eines Verbrennungsmotors |
| US12/007,962 US7953529B2 (en) | 2007-01-18 | 2008-01-17 | Determination of abnormality of an intake air system of an internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007009445A JP4303757B2 (ja) | 2007-01-18 | 2007-01-18 | 内燃機関の吸気系の異常判定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008175140A true JP2008175140A (ja) | 2008-07-31 |
| JP4303757B2 JP4303757B2 (ja) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007009445A Expired - Fee Related JP4303757B2 (ja) | 2007-01-16 | 2007-01-18 | 内燃機関の吸気系の異常判定装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7953529B2 (ja) |
| EP (1) | EP1947313B1 (ja) |
| JP (1) | JP4303757B2 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544184A (zh) * | 2022-02-25 | 2022-05-27 | 湖南道依茨动力有限公司 | 故障诊断方法、装置、电子设备、存储介质及发动机 |
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|---|---|---|---|---|
| DE102009026931A1 (de) * | 2009-06-15 | 2010-12-16 | Robert Bosch Gmbh | Kombisensor |
| US9222453B2 (en) * | 2012-02-06 | 2015-12-29 | Ford Global Technologies, Llc | Method for restarting an engine |
| FR2986565B1 (fr) * | 2012-02-06 | 2014-01-24 | Renault Sa | Procede et systeme de diagnostic de l'admission d'air dans un moteur a combustion interne d'un vehicule automobile. |
| US10233859B2 (en) * | 2014-08-21 | 2019-03-19 | Nissan Motor Co., Ltd. | Fuel injection control device and fuel injection control method for internal combustion engine |
| KR101628488B1 (ko) * | 2014-09-25 | 2016-06-08 | 현대자동차주식회사 | 카본 퇴적량이 변경된 etc의 제어 방법 |
| JP6450587B2 (ja) * | 2014-12-25 | 2019-01-09 | ダイハツ工業株式会社 | 内燃機関の制御装置 |
| JP6147289B2 (ja) * | 2015-04-08 | 2017-06-14 | 三菱電機株式会社 | 自動二輪車の吸入空気量推定装置 |
| JP6328201B2 (ja) * | 2016-10-05 | 2018-05-23 | 三菱電機株式会社 | 内燃機関の制御装置 |
| CN106427973B (zh) * | 2016-11-28 | 2020-06-02 | 中车长春轨道客车股份有限公司 | 一种crh380系列动车组中继阀的筛查方法 |
| JP2023131994A (ja) * | 2022-03-10 | 2023-09-22 | 本田技研工業株式会社 | 内燃機関の制御装置 |
| CN118857753B (zh) * | 2024-06-26 | 2025-09-23 | 东风汽车集团股份有限公司 | 发动机充气量标定方法、装置、设备及存储介质 |
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| JPS6390449A (ja) * | 1986-10-04 | 1988-04-21 | Toyota Motor Corp | 車両駆動系の制御装置 |
| JP3784563B2 (ja) | 1999-02-05 | 2006-06-14 | 本田技研工業株式会社 | 内燃機関の動弁制御装置 |
| DE19946874A1 (de) * | 1999-09-30 | 2001-04-05 | Bosch Gmbh Robert | Diagnose von Stellgliedern und Sensoren in Verbindung mit der Gemischbildung bei Brennkraftmaschinen |
| JP4104848B2 (ja) | 2001-11-16 | 2008-06-18 | 株式会社日立製作所 | 内燃機関の吸気系故障診断装置およびフェールセーフ装置 |
| JP4057855B2 (ja) | 2002-07-05 | 2008-03-05 | 本田技研工業株式会社 | 内燃機関の動弁装置 |
| JP4078932B2 (ja) | 2002-09-26 | 2008-04-23 | トヨタ自動車株式会社 | 可変動弁系を有する内燃機関の制御方法 |
| DE10360481A1 (de) * | 2002-12-24 | 2004-09-02 | Denso Corp., Kariya | Sekundärluftzufuhr-Anormalitätserfassungssystem |
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| JP4023440B2 (ja) * | 2003-12-02 | 2007-12-19 | トヨタ自動車株式会社 | 内燃機関の空燃比制御装置 |
| US7273046B2 (en) * | 2004-07-09 | 2007-09-25 | Denso Corporation | Air-fuel ratio controller for internal combustion engine and diagnosis apparatus for intake sensors |
| DE102005019807B4 (de) * | 2005-04-28 | 2014-01-23 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Lokalisation von fehlerbehafteten Komponenten oder Leckagen im Ansaugtrakt einer Brennkraftmaschine |
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2007
- 2007-01-18 JP JP2007009445A patent/JP4303757B2/ja not_active Expired - Fee Related
-
2008
- 2008-01-07 EP EP08000175A patent/EP1947313B1/en not_active Ceased
- 2008-01-17 US US12/007,962 patent/US7953529B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544184A (zh) * | 2022-02-25 | 2022-05-27 | 湖南道依茨动力有限公司 | 故障诊断方法、装置、电子设备、存储介质及发动机 |
| CN114544184B (zh) * | 2022-02-25 | 2024-06-04 | 湖南道依茨动力有限公司 | 故障诊断方法、装置、电子设备、存储介质及发动机 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1947313A1 (en) | 2008-07-23 |
| US7953529B2 (en) | 2011-05-31 |
| EP1947313B1 (en) | 2011-05-04 |
| JP4303757B2 (ja) | 2009-07-29 |
| US20080189007A1 (en) | 2008-08-07 |
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