JP5056895B2 - 触媒温度算出装置 - Google Patents
触媒温度算出装置 Download PDFInfo
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- JP5056895B2 JP5056895B2 JP2010103574A JP2010103574A JP5056895B2 JP 5056895 B2 JP5056895 B2 JP 5056895B2 JP 2010103574 A JP2010103574 A JP 2010103574A JP 2010103574 A JP2010103574 A JP 2010103574A JP 5056895 B2 JP5056895 B2 JP 5056895B2
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- temperature
- catalyst
- learning
- resistance value
- catalyst temperature
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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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
- F01N3/2026—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
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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
-
- 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
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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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
請求項6記載の発明では、前記温度推定手段が推定に用いる前記物理量とは、排気温度センサによる検出値であることを特徴とする。
本発明は上記実施形態の記載内容に限定されず、以下のように変更して実施してもよい。また、各実施形態の特徴的構成をそれぞれ任意に組み合わせるようにしてもよい。
Claims (8)
- 内燃機関の排気を浄化する触媒のうち、通電されて発熱する電気加熱式の触媒に適用され、
前記触媒への通電を停止している通電停止期間中の前記触媒の温度を、前記触媒の電気抵抗値とは別の物理量に基づき学習用温度として推定する温度推定手段と、
前記温度推定手段による推定時に前記触媒へ瞬時通電させ、その時に検出された前記触媒の電気抵抗値を学習用抵抗値として取得する抵抗取得手段と、
通電して発熱させている時の前記触媒の電気抵抗値を検出し、その検出値と、前記学習用温度及び前記学習用抵抗値とに基づき、通電発熱時の触媒温度を算出する触媒温度算出手段と、
を備えることを特徴とする触媒温度算出装置。 - 前記温度推定手段は、前記通電停止期間中のうち前記内燃機関を停止させている時の触媒温度を前記学習用温度の1つとして推定することを特徴とする請求項1に記載の触媒温度算出装置。
- 前記温度推定手段は、前記通電停止期間中のうち前記内燃機関を定常運転させている時の触媒温度を前記学習用温度の1つとして推定することを特徴とする請求項1又は2に記載の触媒温度算出装置。
- 前記温度推定手段は、前記内燃機関を定常運転させている時の触媒温度を推定するにあたり、前記触媒にて排気を浄化させる時に生じる反応熱による触媒温度上昇分を加味して推定することを特徴とする請求項3に記載の触媒温度算出装置。
- 前記温度推定手段が推定に用いる前記物理量とは、外気温度センサ、機関冷却水温度センサ、吸気温度センサ、及び排気温度センサによる検出値の少なくとも1つであることを特徴とする請求項2に記載の触媒温度算出装置。
- 前記温度推定手段が推定に用いる前記物理量とは、排気温度センサによる検出値であることを特徴とする請求項3又は4に記載の触媒温度算出装置。
- 前記触媒には、導電性のセラミック触媒が適用されていることを特徴とする請求項1〜6のいずれか1つに記載の触媒温度算出装置。
- 前記セラミック触媒は、温度が上昇するほど電気抵抗値が低下する特性を有するものであることを特徴とする請求項7に記載の触媒温度算出装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010103574A JP5056895B2 (ja) | 2010-04-28 | 2010-04-28 | 触媒温度算出装置 |
DE102011017675A DE102011017675A1 (de) | 2010-04-28 | 2011-04-28 | Gerät zur Berechnung einer Temperatur eines leitfähigen Trägers einer Katalysatorvorrichtung |
US13/096,284 US8751187B2 (en) | 2010-04-28 | 2011-04-28 | Apparatus for calculating temperature of conductive carrier of catalyst converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010103574A JP5056895B2 (ja) | 2010-04-28 | 2010-04-28 | 触媒温度算出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011231709A JP2011231709A (ja) | 2011-11-17 |
JP5056895B2 true JP5056895B2 (ja) | 2012-10-24 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2010103574A Active JP5056895B2 (ja) | 2010-04-28 | 2010-04-28 | 触媒温度算出装置 |
Country Status (3)
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US (1) | US8751187B2 (ja) |
JP (1) | JP5056895B2 (ja) |
DE (1) | DE102011017675A1 (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2512042A (en) | 2012-12-31 | 2014-09-24 | Continental Automotive Systems | Resistance determination with increased sensitivity for temperature control of heated automotive component |
GB2512041A (en) | 2012-12-31 | 2014-09-24 | Continental Automotive Systems | Resistance determination for temperature control of heated automotive components |
GB2512039A (en) | 2012-12-31 | 2014-09-24 | Continental Automotive Systems | Using resistance equivalent to estimate temperature of a fuel-njector heater |
GB2512040A (en) * | 2012-12-31 | 2014-09-24 | Continental Automotive Systems | Using resistance equivalent to estimate heater temperature of an exhaust gas after-treatment component |
JP6432411B2 (ja) * | 2015-03-25 | 2018-12-05 | いすゞ自動車株式会社 | 排気浄化システム |
JP6519306B2 (ja) * | 2015-05-11 | 2019-05-29 | 株式会社デンソー | 内燃機関の制御装置 |
US10637993B1 (en) * | 2016-09-26 | 2020-04-28 | Aquantia Corp. | High-bandwidth home network over phone line |
CN106762040A (zh) * | 2017-01-03 | 2017-05-31 | 宁波吉利罗佑发动机零部件有限公司 | 一种应用于汽油发动机的排放后处理***及处理方法 |
DE102018110382A1 (de) | 2018-04-30 | 2019-10-31 | Volkswagen Aktiengesellschaft | Verfahren zur Temperaturermittlung eines elektrisch beheizbaren Katalysators |
JP2020002936A (ja) | 2018-07-02 | 2020-01-09 | 株式会社デンソー | 触媒温度算出装置 |
JP2020063712A (ja) | 2018-10-18 | 2020-04-23 | 株式会社デンソー | 触媒温度算出装置 |
JP7234916B2 (ja) * | 2019-12-24 | 2023-03-08 | トヨタ自動車株式会社 | 車両の制御装置 |
JP7207337B2 (ja) * | 2020-01-17 | 2023-01-18 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
WO2021260999A1 (ja) * | 2020-06-24 | 2021-12-30 | 日立Astemo株式会社 | 電子制御装置 |
US11624333B2 (en) | 2021-04-20 | 2023-04-11 | Kohler Co. | Exhaust safety system for an engine |
FR3129978A1 (fr) * | 2021-12-06 | 2023-06-09 | Faurecia Systemes D'echappement | Elément chauffant autorégulant |
WO2023188424A1 (ja) * | 2022-04-01 | 2023-10-05 | 株式会社オートネットワーク技術研究所 | 車載用の温度制御装置 |
DE102022205330A1 (de) | 2022-05-30 | 2023-11-30 | Psa Automobiles Sa | Verfahren zur Temperaturermittlung eines elektrisch beheizbaren Katalysators einer Abgasanlage eines Verbrennungsmotors eines Fahrzeugs |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH051526A (ja) * | 1991-06-25 | 1993-01-08 | Nippondenso Co Ltd | 金属担体触媒の制御装置 |
JP3602614B2 (ja) | 1995-07-04 | 2004-12-15 | 本田技研工業株式会社 | 内燃機関の排気ガス浄化装置 |
JP3322098B2 (ja) * | 1995-11-06 | 2002-09-09 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP4255224B2 (ja) * | 2001-07-26 | 2009-04-15 | 三菱自動車工業株式会社 | 内燃機関 |
DE10258278A1 (de) * | 2002-12-13 | 2004-06-24 | Robert Bosch Gmbh | Katalysatortemperatur-Modellierung bei exothermem Betrieb |
JP2004211577A (ja) * | 2002-12-27 | 2004-07-29 | Robert Bosch Gmbh | 電気加熱式の触媒の操作方法および排気ガスの後処理装置 |
JP4464613B2 (ja) | 2003-02-28 | 2010-05-19 | 三菱自動車工業株式会社 | 触媒温度推定装置及び触媒温度推定方法 |
JP2005194935A (ja) * | 2004-01-07 | 2005-07-21 | Isuzu Motors Ltd | 排気ガス浄化装置 |
JP4395120B2 (ja) * | 2005-10-19 | 2010-01-06 | トヨタ自動車株式会社 | 内燃機関の排気ガス浄化装置 |
KR100691632B1 (ko) | 2006-05-16 | 2007-03-12 | 삼성전기주식회사 | 반도체칩, 반도체칩의 제조방법 및 반도체칩 패키지 |
US8209970B2 (en) * | 2007-05-15 | 2012-07-03 | GM Global Technology Operations LLC | Hybrid cold start strategy using electrically heated catalyst |
US7572054B2 (en) * | 2007-07-19 | 2009-08-11 | Cummins Filtration Ip, Inc | Apparatus, system, and method for determining a time-temperature history of an aftertreatment device |
US7841769B2 (en) * | 2007-09-11 | 2010-11-30 | Gm Global Technology Operations, Inc. | Method and apparatus for determining temperature in a gas feedstream |
JP5125576B2 (ja) * | 2008-02-13 | 2013-01-23 | トヨタ自動車株式会社 | 通電加熱式触媒装置の異常判定システム |
JP2010058746A (ja) * | 2008-09-05 | 2010-03-18 | Toyota Motor Corp | ハイブリッド車両の制御装置および制御方法 |
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2010
- 2010-04-28 JP JP2010103574A patent/JP5056895B2/ja active Active
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2011
- 2011-04-28 US US13/096,284 patent/US8751187B2/en active Active
- 2011-04-28 DE DE102011017675A patent/DE102011017675A1/de not_active Withdrawn
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Publication number | Publication date |
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US8751187B2 (en) | 2014-06-10 |
DE102011017675A1 (de) | 2011-11-10 |
US20110270568A1 (en) | 2011-11-03 |
JP2011231709A (ja) | 2011-11-17 |
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