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1. WO2011070687 - DEVICE FOR DETECTING SULFUR COMPONENT

Publication Number WO/2011/070687
Publication Date 16.06.2011
International Application No. PCT/JP2009/070934
International Filing Date 09.12.2009
IPC
G01N 27/12 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
02by investigating impedance
04by investigating resistance
12of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid
G01N 33/00 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
CPC
F02D 2200/0818
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
2200Input parameters for engine control
02the parameters being related to the engine
08Exhaust gas treatment apparatus parameters
0818SOx storage amount, e.g. for SOx trap or NOx trap
F02D 41/028
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
02Circuit arrangements for generating control signals
021Introducing corrections for particular conditions exterior to the engine
0235in relation with the state of the exhaust gas treating apparatus
027to purge or regenerate the exhaust gas treating apparatus
0275the exhaust gas treating apparatus being a NOx trap or adsorbent
028Desulfurisation of NOx traps or adsorbent
F02D 41/1444
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
02Circuit arrangements for generating control signals
14Introducing closed-loop corrections
1438using means for determining characteristics of the combustion gases; Sensors therefor
1444characterised by the characteristics of the combustion gases
G01N 25/4873
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
25Investigating or analyzing materials by the use of thermal means
20by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
48on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
4873for a flowing, e.g. gas sample
G01N 33/0042
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
0004Gaseous mixtures, e.g. polluted air
0009General constructional details of gas analysers, e.g. portable test equipment
0027concerning the detector
0036Specially adapted to detect a particular component
0042for SO2, SO3
Y02A 50/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
50in human health protection, e.g. against extreme weather
20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Applicants
  • トヨタ自動車株式会社 TOYOTA JIDOSHA KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 西岡寛真 NISHIOKA, Hiromasa [JP]/[JP] (UsOnly)
  • 塚本佳久 TSUKAMOTO, Yoshihisa [JP]/[JP] (UsOnly)
  • 押川克彦 OSHIKAWA, Katsuhiko [JP]/[JP] (UsOnly)
  • 大月寛 OTSUKI, Hiroshi [JP]/[JP] (UsOnly)
  • 松尾潤一 MATSUO, Junichi [JP]/[JP] (UsOnly)
Inventors
  • 西岡寛真 NISHIOKA, Hiromasa
  • 塚本佳久 TSUKAMOTO, Yoshihisa
  • 押川克彦 OSHIKAWA, Katsuhiko
  • 大月寛 OTSUKI, Hiroshi
  • 松尾潤一 MATSUO, Junichi
Agents
  • 青木篤 AOKI, Atsushi
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) DEVICE FOR DETECTING SULFUR COMPONENT
(FR) DISPOSITIF DE DÉTECTION D'UN COMPOSÉ SULFURÉ
(JA) 硫黄成分検出装置
Abstract
(EN)
Disclosed is a device for detecting a sulfur component provided with a holding part for holding SOX and NOX in an exhaust gas passing through an exhaust gas channel, the NOX holding capability of which decreases with an increase in the SOX holding capability thereof, whereby the amount of held SOX is estimated based on the amount of NOX held in the holding part so that the integrated amount of SOX having passed said exhaust gas channel within a definite period of time or a value based on the integrated amount is detected. In this device for detecting a sulfur component, when NOX is not held in the holding part at such an NOX level that can be held at the present time, the estimation (step (105)) of the amount of held SOX based on the integrated amount of SOX or a value based on the integrated amount is inhibited (step (102)).
(FR)
L'invention concerne un dispositif de détection d'un composé sulfuré, comportant une partie de rétention conçue pour retenir les SOX et les NOX présents dans un gaz d'échappement traversant un passage de gaz d'échappement, et dont la capacité de rétention des NOX diminue lorsque sa capacité de rétention des SOX augmente. La quantité de SOX retenus est estimée en fonction de la quantité de NOX retenus dans la partie de rétention pour détecter ainsi la quantité cumulée de SOX, ou une valeur fonction de celle-ci, qui a traversé le passage de gaz d'échappement au sein d'un intervalle de temps défini. Si la quantité de NOX retenue dans la partie de rétention n'atteint pas un niveau susceptible d'être retenu à ce moment, l'estimation (étape (105)) de la quantité de SOX retenus compte tenu de la quantité cumulée de SOX ou d'une valeur fonction de celle-ci est alors inhibée (étape (102)).
(JA)
本硫黄成分検出装置は、排気ガス通路を通過する排気ガス中のSOX及びNOXを保持し、SOX保持量が増加するほどNOX保持可能量が減少する保持部を具備し、保持部に保持されたNOX保持量に基づきSOX保持量を推定し、一定期間の間に前記排気ガス通路を通過したSOXの積算量又は積算量に基づく値を検出する硫黄成分検出装置において、SOXの積算量又は積算量に基づく値を検出するためのSOX保持量の推定(ステップ105)は、保持部に現在のNOX保持可能量のNOXが保持されていない時は禁止される(ステップ102)。
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