BRPI0006680B8 - método para estimar a temperatura de gases de exaustão a montante de um pré-catalisador disposto ao longo de um duto de exaustão de um motor de combustão interna - Google Patents

método para estimar a temperatura de gases de exaustão a montante de um pré-catalisador disposto ao longo de um duto de exaustão de um motor de combustão interna

Info

Publication number
BRPI0006680B8
BRPI0006680B8 BRPI0006680A BR0006680A BRPI0006680B8 BR PI0006680 B8 BRPI0006680 B8 BR PI0006680B8 BR PI0006680 A BRPI0006680 A BR PI0006680A BR 0006680 A BR0006680 A BR 0006680A BR PI0006680 B8 BRPI0006680 B8 BR PI0006680B8
Authority
BR
Brazil
Prior art keywords
exhaust gas
estimating
exhaust duct
catalyst
gas temperature
Prior art date
Application number
BRPI0006680A
Other languages
English (en)
Other versions
BR0006680A (pt
BR0006680B1 (pt
Inventor
Ceccarini Daniele
Poggio Luca
Original Assignee
Magneti Marelli Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Magneti Marelli Spa filed Critical Magneti Marelli Spa
Publication of BR0006680A publication Critical patent/BR0006680A/pt
Publication of BR0006680B1 publication Critical patent/BR0006680B1/pt
Publication of BRPI0006680B8 publication Critical patent/BRPI0006680B8/pt

Links

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
    • F02D41/02—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
    • 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
    • F02D41/1493—Details
    • F02D41/1494—Control of sensor heater
    • 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
    • F02D41/1456—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 with sensor output signal being linear or quasi-linear with the concentration of oxygen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

<b>método para estimar a temperatura de gases de exaustão a montante de um pré-catalisador disposto ao longo de um duto de exaustão de um motor de combustão interna"<d>, o método sendo descrito para estimar a temperatura de gases de exaustão a montante de um pré-catalisador 2 disposto ao longo de um duto de exaustão de um motor 20, o qual é provido com um sistema 1 para controlar a composição dos gases de exaustão, compreendendo um sensor de oxigênio 10, o qual é disposto ao longo do duto de exaustão 7, a montante do pré-catalisador 3, um aquecedor 11, o qual é associado com o sensor de oxigênio 10, e uma unidade de controle 4, a qual, interalia, serve para o propósito de controlar o aquecedor 11. o método compreende as etapas de: determinar uma quantidade operativa v~ pepp~, a qual é correlacionada com uma potência elétrica w~ e~ fornecida ao aquecedor 11, de maneira a manter a temperatura operativa ts do sensor de oxigênio 10 próxima a temperatura objetivo t^ 0^ ; e determinar a temperatura tg dos gases de exaustão a montante do pré-catalisador 2, conforme a dita quantidade operativa v~ pepp~.
BRPI0006680A 1999-10-06 2000-10-05 método para estimar a temperatura de gases de exaustão a montante de um pré-catalisador disposto ao longo de um duto de exaustão de um motor de combustão interna BRPI0006680B8 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1999BO000535A IT1310507B1 (it) 1999-10-06 1999-10-06 Metodo di stima della temperatura dei gas di scarico a monte di unprecatalizzatore disposto lungo un condotto di scarico di un motore a

Publications (3)

Publication Number Publication Date
BR0006680A BR0006680A (pt) 2001-08-21
BR0006680B1 BR0006680B1 (pt) 2012-08-07
BRPI0006680B8 true BRPI0006680B8 (pt) 2017-03-07

Family

ID=11344265

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0006680A BRPI0006680B8 (pt) 1999-10-06 2000-10-05 método para estimar a temperatura de gases de exaustão a montante de um pré-catalisador disposto ao longo de um duto de exaustão de um motor de combustão interna

Country Status (4)

Country Link
US (1) US6422000B1 (pt)
EP (1) EP1091108A1 (pt)
BR (1) BRPI0006680B8 (pt)
IT (1) IT1310507B1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1311110B1 (it) 1999-10-26 2002-02-28 Magneti Marelli Spa Metodo per la diagnosi di un sistema di abbattimento dei gas discarico per un motore a combustione interna.
US6712054B2 (en) * 2000-05-17 2004-03-30 Unisia Jecs Corporation Device and method for measuring element temperature of air-fuel ratio sensor, and device and method for controlling heater of air-fuel ratio sensor
US6381953B1 (en) * 2000-12-07 2002-05-07 Ford Global Technologies, Inc. Exhaust gas oxygen sensor temperature control for a variable displacement engine
DE10248842A1 (de) * 2002-10-19 2004-04-29 Daimlerchrysler Ag Vorrichtung und Verfahren zur Bestimmung des Alterungszustands eines Abgaskatalysators
JP4424182B2 (ja) * 2004-12-06 2010-03-03 株式会社デンソー 内燃機関の排気温度推定装置
DE102006009241A1 (de) * 2006-02-28 2007-09-06 Siemens Ag Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine
DE102008001213A1 (de) * 2008-04-16 2009-10-22 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose der Dynamik eines Abgassensors
GB2483512A (en) * 2010-09-13 2012-03-14 Gm Global Tech Operations Inc Estimating exhaust gas temperature using a NOx sensor
CN106968763B (zh) * 2017-03-31 2019-07-09 凯晟动力技术（嘉兴）有限公司 一种用于前氧传感器的加热器的加热功率修正方法及系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0633810A (ja) * 1992-07-16 1994-02-08 Mazda Motor Corp エンジンの排気系保護制御方法およびその装置
JP2860866B2 (ja) * 1993-11-02 1999-02-24 株式会社ユニシアジェックス 車両の触媒温度検出装置
JP3487009B2 (ja) * 1994-08-05 2004-01-13 株式会社デンソー 酸素センサのヒータ制御装置
JPH08128989A (ja) * 1994-10-31 1996-05-21 Nippondenso Co Ltd 酸素濃度検出装置
US5605040A (en) 1995-03-29 1997-02-25 Ford Motor Company Inferring temperature of a heated exhaust gas oxygen sensor
US5901553A (en) 1995-03-29 1999-05-11 Ford Global Technologies, Inc. Method and system for estimating temperature of a heated exhaust gas oxygen sensor in an exhaust system having a variable length pipe
JP3692618B2 (ja) * 1995-08-29 2005-09-07 株式会社デンソー 内燃機関の空燃比制御装置
JPH10148152A (ja) * 1996-11-19 1998-06-02 Unisia Jecs Corp エンジンにおける酸素センサの温度推定装置
JP3796927B2 (ja) * 1997-10-31 2006-07-12 トヨタ自動車株式会社 内燃機関の還元剤供給制御装置
FR2771815B1 (fr) 1997-12-02 2000-02-18 Renault Procede d'estimation de la temperature des gaz d'echappement d'un moteur

Also Published As

Publication number Publication date
IT1310507B1 (it) 2002-02-18
BR0006680A (pt) 2001-08-21
ITBO990535A0 (it) 1999-10-06
US6422000B1 (en) 2002-07-23
BR0006680B1 (pt) 2012-08-07
EP1091108A1 (en) 2001-04-11
ITBO990535A1 (it) 2001-04-06

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 07/08/2012, OBSERVADAS AS CONDICOES LEGAIS.

B09X Republication of the decision to grant [chapter 9.1.3 patent gazette]
B16C Correction of notification of the grant [chapter 16.3 patent gazette]
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 20A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2599 DE 27-10-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.