KR980002678A - Self-diagnosis device of exhaust purification stationary of internal combustion engine - Google Patents

Self-diagnosis device of exhaust purification stationary of internal combustion engine Download PDF

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Publication number
KR980002678A
KR980002678A KR1019970024587A KR19970024587A KR980002678A KR 980002678 A KR980002678 A KR 980002678A KR 1019970024587 A KR1019970024587 A KR 1019970024587A KR 19970024587 A KR19970024587 A KR 19970024587A KR 980002678 A KR980002678 A KR 980002678A
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South Korea
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combustion engine
internal combustion
electrically heated
self
resistance value
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KR1019970024587A
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KR100216103B1 (en
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다다시 노무라
다쿠 야마다
기미요시 니시자와
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하나와 요시카즈
닛샨 지도샤 가부시키가이샤
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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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • 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)
  • Exhaust Gas After Treatment (AREA)

Abstract

촉매 효율을 저하시키지 않고서 EHC(1)의 자기 진단을 행한다.예를 들면 냉간 시동시에 EHC(1)로 통전할 때는 스위치(7)를 EHC(1)측으로 전환하고, EHC(1)를 발전기(6)에 직결한다. 스위치(7)가 배터리(3)측으로 전환되었을 때, 스위치(9)를 닫고 저항(10)에 의한 강하 전압(V)을 전압 센서(11)로써 검출한다. 그리고, 식(1)에 따라 EHC(1)의 저항값(R)을 산출한다. R=(V/V-1)×R이 저항값(R)이 소정 범위 밖이 되었을 때, EHC(1)의 기능이 저하하였다고 판정한다.The self-diagnosis of the EHC 1 is performed without degrading the catalyst efficiency. For example, when energizing the EHC 1 during cold start, the switch 7 is switched to the EHC 1 side, and the EHC 1 is generator. Directly connected to (6). When the switch 7 is switched to the battery 3 side, the switch 9 is closed and the drop voltage V by the resistor 10 is closed. ) Is detected by the voltage sensor 11. Then, the resistance value R of the EHC 1 is calculated according to the formula (1). R = (V / V -1) × R When the resistance value R falls outside the predetermined range, it is determined that the function of the EHC 1 is reduced.

Description

내연기관의 배기 정화 장치의 자기 진단 장치Self-diagnosis device for exhaust purification device of internal combustion engine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (4)

내연 기관의 배기 통로에 장착되어 배기중의 소정 성분을 정화하는 동시에, 금속제의 담체를 가지며, 해당 담체로의 통전에 의해 발열하는 전기 가열식 촉매와, 내연 기관으로 구동되어 발전하는 발전 수단을 구비하며, 상기 전기 가열식 촉매로의 통전 조건이 되었을 때에 상기 발전 수단으로부터 전기 가열식 촉매에 통전하도록 구성된 내연 기관의 배기 정화 장치의 자기진단 장치에 있어서, 직류 전원과, 발전 수단으로부터 전기가열식 촉매에 통전되어 있지 않을 때에, 해당 직유전원과 전기 가열식 촉매와의 사이에 전류검출 저항을 끼워 장착하여 전기 가열식 촉매에 통전하는 통전 수단과, 끼워 장착된 전류 검출 저항 양단의 강하 전압을 검출하는 강하 전압 검출수단과, 검출된 전류 검출 저항 양단의 강하 전압에 근거하여 전기 가열식 촉매의 저항값을 산출하는 저항값 산출 수단과, 산출된 전기 가열식 촉매의 저항값이 소정 범위 밖으로 되었을 때는 전기 가열식 촉매의 기능 저하라고 판정하는 기능 판정 수단을 구비한 것을 특징으로 하는 내연 기관의 배기 정화 장치의 자기 진단 장치.Equipped with an exhaust passage of the internal combustion engine to purify a predetermined component in the exhaust, and has a metal carrier, the electric heating catalyst to generate heat by energizing the carrier, and a power generation means driven by the internal combustion engine to generate power; In the self-diagnosis apparatus of the exhaust purification apparatus of an internal combustion engine configured to conduct electricity from said power generation means to an electrically heated catalyst when the electricity supply condition to said electrically heated catalyst is reached, it is energized by a DC power supply and an electrically heated catalyst from a power generation means. When not, a current-carrying means is inserted between the oil supply power source and the electric heating catalyst to energize the electric heating catalyst, a dropping voltage detecting means for detecting a drop voltage across the fitted current detecting resistor; Based on the voltage drop across the detected current sense resistor A resistance value calculating means for calculating a term value and a function determining means for determining that the function value of the electrically heated catalyst is deteriorated when the calculated resistance value of the electrically heated catalyst falls outside a predetermined range, Self diagnostic device. 제1항에 있어서, 상기 저항값 산출 수단은 식(1)에 의거하여 전기 가열식 촉매의 저항값을 산출하도록 구성된 것을 특징으로 하는 내연 기관의 배기 정화 장치의 자기 진단 장치.2. The self-diagnosis apparatus of the exhaust purification apparatus of an internal combustion engine according to claim 1, wherein said resistance value calculating means is configured to calculate a resistance value of an electrically heated catalyst based on equation (1). R=(V/V-1)×R R = (V / V -1) × R 단, R : 전기 가열식 촉매의 저항값, V직류 전원의 단자 전압, V전류 검출 저항에 의한 강하 전압, R1; 전류 검출 저항의 저항값.However, R is the resistance value of the electrically heated catalyst, V Terminal voltage of DC power supply, V The drop voltage due to the current detection resistor, R1; Resistance value of the current sense resistor. 내연 기관의 배기 통로에 끼워 장착되어 배기중의 소정 성분을 정화하는 동시에, 금속제의 담체를 가지며, 해당 담체로의 통전에 의해 발열하는 전기 가열식 촉매와, 내연 기관에 구동되어 발전하는 발전 수단과, 해당 발전 수단의 출력 전압을 현재의 제어량을 보정하면서 소정 전압으로 제어하는 정전압 제어 수단과, 상기 전기 가열식 촉매로의 통전 조건이 되었을 때에, 상기 발전 수단으로부터 전기 가열식 촉매에 통전하는 통전수단을 구비한 내연 기관의 배기 정화 장치의 자기진단 장치에 있어서, 상기 정전압 제어 수단이 현재의 제어량을 보정한 보정량을 검출하는 보정량 검출 수단과, 해당 검출된 보정량이 소정 보정량 이상으로 될 때, 상기촉매 컨버터의 기능 저하라고 판정하는 기능 판정 수단을 구비한 것을 특징으로 하는 내연 기관의 배기 정화장치의 자기 진단 장치.An electric heating catalyst which is fitted into an exhaust passage of an internal combustion engine, purifies a predetermined component in exhaust gas, and has a metal carrier and generates heat by energizing the carrier, power generation means driven by the internal combustion engine and generating power; And a constant voltage control means for controlling the output voltage of the power generation means to a predetermined voltage while correcting the current control amount, and a power supply means for supplying electricity to the electrically heated catalyst from the power generation means when the current is supplied to the electrically heated catalyst. A self-diagnostic apparatus for an exhaust gas purification apparatus of an internal combustion engine, comprising: correction amount detecting means for detecting a correction amount for which the constant voltage control means corrects a current control amount, and a function of the catalytic converter when the detected correction amount becomes equal to or larger than a predetermined correction amount. The ship of the internal combustion engine characterized by including the function determination means which judges that it is a fall. Self-diagnosis device for purifying device. 제3항에 있어서, 상기 기능 판정 수단은 보정량이 소정 보정량을 초과한 후 소정 시간 경과하였을 때에 전기 가열식 촉매의 기능 저하라고 판장하도록 구성된 것을 특징으로 하는 내연기관의 배기 정화 장치의 자기진단 장치.4. The self-diagnosis apparatus of the exhaust gas purification apparatus of an internal combustion engine according to claim 3, wherein said function determining means is configured to judge that the function of the electric heating catalyst is deteriorated when a predetermined time elapses after the correction amount exceeds a predetermined correction amount. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019970024587A 1996-06-14 1997-06-13 Self diagnosis unit for engine exhaust purification device Expired - Fee Related KR100216103B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8153920A JPH102215A (en) 1996-06-14 1996-06-14 Self-diagnosis device for exhaust emission controller of internal combustion engine
JP96-153920 1996-06-14

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KR980002678A true KR980002678A (en) 1998-03-30
KR100216103B1 KR100216103B1 (en) 1999-08-16

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US4898014A (en) * 1988-12-23 1990-02-06 United Engineering, Inc. Roll shifting system for rolling mills
JP5125576B2 (en) * 2008-02-13 2013-01-23 トヨタ自動車株式会社 Abnormality judgment system for electrically heated catalyst device
JP4900410B2 (en) 2009-03-25 2012-03-21 トヨタ自動車株式会社 Vehicle control device
US8839605B2 (en) 2011-03-30 2014-09-23 GM Global Technology Operations LLC Exhaust methane control systems and methods
WO2013166267A1 (en) * 2012-05-02 2013-11-07 Remy Technologies, Llc Alternator with lockout mode
JP5626309B2 (en) 2012-10-23 2014-11-19 トヨタ自動車株式会社 Hybrid vehicle
CN104395574B (en) 2012-10-23 2017-03-15 丰田自动车株式会社 Vehicle and control method for vehicle
EP4296753A3 (en) 2017-09-21 2024-06-12 Magic Leap, Inc. Augmented reality display with waveguide configured to capture images of eye and/or environment
JP7234953B2 (en) * 2020-01-22 2023-03-08 株式会社豊田自動織機 Exhaust purification device

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JPH102215A (en) 1998-01-06

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