JP4582058B2 - 排気浄化装置の温度検出装置 - Google Patents
排気浄化装置の温度検出装置 Download PDFInfo
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- JP4582058B2 JP4582058B2 JP2006172321A JP2006172321A JP4582058B2 JP 4582058 B2 JP4582058 B2 JP 4582058B2 JP 2006172321 A JP2006172321 A JP 2006172321A JP 2006172321 A JP2006172321 A JP 2006172321A JP 4582058 B2 JP4582058 B2 JP 4582058B2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
- F02D41/029—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a particulate filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/05—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a particulate sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/07—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas flow rate or velocity meter or sensor, intake flow meters only when exclusively used to determine exhaust gas parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1602—Temperature of exhaust gas apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
-
- 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
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0812—Particle filter loading
-
- 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
- F02D41/1446—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 exhaust temperatures
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- Y02T10/12—Improving ICE efficiencies
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
以下、本発明に係る排気浄化装置の温度検出装置を具体化した第1の実施形態を図面を参照しつつ説明する。なお、本実施形態においては、用途の一例として、車両ディーゼルエンジンのコモンレールシステムにおける排気浄化装置について本発明を具体化している。
次に、本発明に係る排気浄化装置の温度検出装置を具体化した第2の実施形態について図面を参照しつつ説明する。なお、本実施形態に係る装置も、例えば先の図1に示したような車両制御システムに適用される。そして、そのシステムの構成は、本実施形態でも基本的には先の第1の実施形態で説明したものと同様のものになるため、ここではシステムの構成についての説明を割愛する。以下、本実施形態に係る排気浄化装置の温度検出処理について第1の実施形態との相違点を中心に説明する。
・上記各実施形態では、図2又は図6の処理を逐次実行することによりDPF11の温度を逐次検出するようにしたが、これらの処理を逐次実行することは必須の構成ではない。例えばこうした温度の検出をユーザの任意のタイミングで実行するようにしてもよい。
Claims (8)
- エンジンの排気通路に配設された排気浄化装置の近傍にて排気温度を検出する排気温度検出手段を備えて、該排気温度検出手段により検出される排気温度に基づいて前記排気浄化装置の温度を検出する排気浄化装置の温度検出装置において、
前記排気浄化装置の温度検出を行う際に前記排気浄化装置の中心から排気の流れに直交する外周方向へ向かうにつれて低温になる温度勾配に起因した検出温度の低下分を補償する温度補償手段を備え、
前記排気温度検出手段は、
前記排気浄化装置の近傍上流側にて排気温度を検出する第1の排気温度検出手段と、
前記排気浄化装置の近傍下流側にて排気温度を検出する第2の排気温度検出手段と、
によって構成され、
前記温度補償手段は、これら第1及び第2の排気温度検出手段により検出される上流側排気温度と下流側排気温度との排気温度差に基づいて前記補償を行うものであることを特徴とする排気浄化装置の温度検出装置。 - エンジンの排気通路に配設された排気浄化装置の近傍にて排気温度を検出する排気温度検出手段を備えて、該排気温度検出手段により検出される排気温度に基づいて前記排気浄化装置の温度を検出する排気浄化装置の温度検出装置において、
前記排気浄化装置の温度検出を行う際に、前記排気浄化装置と前記排気温度検出手段との隙間での放熱による検出温度の低下分、及び、前記排気浄化装置の中心から排気の流れに直交する外周方向へ向かうにつれて低温になる温度勾配に起因した検出温度の低下分を、両方とも補償する温度補償手段を備え、
前記排気温度検出手段は、
前記排気浄化装置の近傍上流側にて排気温度を検出する第1の排気温度検出手段と、
前記排気浄化装置の近傍下流側にて排気温度を検出する第2の排気温度検出手段と、
によって構成され、
前記温度補償手段は、これら第1及び第2の排気温度検出手段により検出される上流側排気温度と下流側排気温度との排気温度差に基づいて前記補償を行うものであることを特徴とする排気浄化装置の温度検出装置。 - 前記排気温度差と前記補償の対象になる検出温度の低下分とを対応付ける排気温度差対応付け手段を備え、
前記温度補償手段は、該排気温度差対応付け手段による対応関係に基づいて前記補償を行うものである請求項1又は2に記載の排気浄化装置の温度検出装置。 - 前記排気浄化装置を通過した排気流量を検出する排気流量検出手段を備え、
前記温度補償手段は、該排気流量検出手段により検出された排気流量に基づいて前記補償を行うものである請求項1〜3のいずれか一項に記載の排気浄化装置の温度検出装置。 - 前記排気流量検出手段は、前記エンジンへの新気量を検出するエアフロメータからなる請求項4に記載の排気浄化装置の温度検出装置。
- 前記排気流量と前記補償の対象になる検出温度の低下分とを対応付ける排気流量対応付け手段を備え、
前記温度補償手段は、該排気流量対応付け手段による対応関係に基づいて前記補償を行うものである請求項4又は5に記載の排気浄化装置の温度検出装置。 - 前記排気温度検出手段は、前記排気浄化装置の近傍下流側にて前記排気温度の検出を行うものである請求項1〜6のいずれか一項に記載の排気浄化装置の温度検出装置。
- 前記排気浄化装置は、酸化触媒、NOx触媒、三元触媒、及びPM除去用フィルタ、の
少なくとも1つを有して構成されるものである請求項1〜7のいずれか一項に記載の排気浄化装置の温度検出装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006172321A JP4582058B2 (ja) | 2006-06-22 | 2006-06-22 | 排気浄化装置の温度検出装置 |
DE102007000342A DE102007000342B4 (de) | 2006-06-22 | 2007-06-21 | Temperaturerfassungsvorrichtung für ein Abgasreinigungsgerät |
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JP2006172321A JP4582058B2 (ja) | 2006-06-22 | 2006-06-22 | 排気浄化装置の温度検出装置 |
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JP2008002349A JP2008002349A (ja) | 2008-01-10 |
JP4582058B2 true JP4582058B2 (ja) | 2010-11-17 |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009036177A (ja) | 2007-08-03 | 2009-02-19 | Denso Corp | 内燃機関の排気浄化装置 |
US8146351B2 (en) * | 2009-06-05 | 2012-04-03 | GM Global Technology Operations LLC | Regeneration systems and methods for particulate filters using virtual brick temperature sensors |
US8283930B2 (en) | 2009-09-29 | 2012-10-09 | General Electric Company | Method and system for compensating for variation in attenuation measurements caused by changes in ambient temperature |
JP5240269B2 (ja) * | 2010-10-01 | 2013-07-17 | 三菱自動車工業株式会社 | 排気浄化装置 |
FR3006709B1 (fr) * | 2013-06-11 | 2015-06-19 | Peugeot Citroen Automobiles Sa | Procede de limitation du vieillissement d' un catalyseur dans une ligne d' echappement de vehicule automobile |
DE102013221598A1 (de) * | 2013-10-24 | 2015-05-13 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Überwachung eines Partikelfilters |
CN114991920B (zh) * | 2022-05-23 | 2023-06-20 | 重庆文理学院 | 一种用于柴油机汽车尾气氮氧化物的处理系统 |
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JP2003336538A (ja) * | 2002-05-20 | 2003-11-28 | Denso Corp | 内燃機関の排出ガス浄化装置 |
JP2005226633A (ja) * | 2004-01-13 | 2005-08-25 | Denso Corp | 内燃機関の排気浄化装置 |
JP2006118418A (ja) * | 2004-10-21 | 2006-05-11 | Nippon Soken Inc | 内燃機関のフィルタまたは排気浄化触媒の温度推定方法 |
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JP3969273B2 (ja) * | 2002-10-03 | 2007-09-05 | 株式会社デンソー | 内燃機関の排気浄化装置 |
DE602004004221T2 (de) * | 2003-09-19 | 2007-05-03 | Nissan Motor Co., Ltd., Yokohama | Regenerationssteuerung eines Filters |
JP4507737B2 (ja) * | 2004-07-23 | 2010-07-21 | 日産自動車株式会社 | 排気ガス浄化装置 |
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JP2003336538A (ja) * | 2002-05-20 | 2003-11-28 | Denso Corp | 内燃機関の排出ガス浄化装置 |
JP2005226633A (ja) * | 2004-01-13 | 2005-08-25 | Denso Corp | 内燃機関の排気浄化装置 |
JP2006118418A (ja) * | 2004-10-21 | 2006-05-11 | Nippon Soken Inc | 内燃機関のフィルタまたは排気浄化触媒の温度推定方法 |
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JP2008002349A (ja) | 2008-01-10 |
DE102007000342A1 (de) | 2008-01-17 |
DE102007000342B4 (de) | 2011-07-14 |
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