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1. WO2015016305 - 排気系の状態検出装置

公開番号 WO/2015/016305
公開日 05.02.2015
国際出願番号 PCT/JP2014/070198
国際出願日 31.07.2014
IPC
F02D 45/00 2006.01
F機械工学;照明;加熱;武器;爆破
02燃焼機関;熱ガスまたは燃焼生成物を利用する機関設備
D燃焼機関の制御
45グループF02D41/00~F02D43/00に分類されない電気的制御
F02D 21/08 2006.01
F機械工学;照明;加熱;武器;爆破
02燃焼機関;熱ガスまたは燃焼生成物を利用する機関設備
D燃焼機関の制御
21空気中のものでない酸素またはその他の燃料でない気体が供給されることを特徴とする機関の制御
06燃焼空気に他の燃料でない気体が添加される機関に特有のもの
08機関の排気ガスが添加されるもの
F02M 25/07 2006.01
F機械工学;照明;加熱;武器;爆破
02燃焼機関;熱ガスまたは燃焼生成物を利用する機関設備
M一般の燃焼機関への可燃混合物またはその成分の供給
25燃焼空気,主燃料または燃料-空気混合気に非燃料物質または少量の2次燃料を加える機関に適切な装置
06潤滑剤の蒸気を加えるもの
07排気ガスを加えるもの
CPC
F02D 2041/1433
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
1401characterised by the control or regulation method
1433using a model or simulation of the system
F02D 21/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
21Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
06peculiar to engines having other non-fuel gas added to combustion air
08the other gas being the exhaust gas of engine
F02D 2200/0618
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
06Fuel or fuel supply system parameters
0618Actual fuel injection timing or delay, e.g. determined from fuel pressure drop
F02D 41/144
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
1439characterised by the position of the sensor
144Sensor in intake manifold
F02D 41/1447
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
1446the characteristics being exhaust temperatures
1447with determination means using an estimation
F02D 41/1456
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
1454the characteristics being an oxygen content or concentration or the air-fuel ratio
1456with sensor output signal being linear or quasi-linear with the concentration of oxygen
出願人
  • いすゞ自動車株式会社 ISUZU MOTORS LIMITED [JP/JP]; 東京都品川区南大井6丁目26番1号 26-1, Minami-Ohi 6-chome, Shinagawa-ku, Tokyo 1408722, JP
  • 株式会社トランストロン TRANSTRON INC. [JP/JP]; 神奈川県横浜市港北区新横浜2丁目15番16号 15-16, Shin-Yokohama 2-chome, Kouhoku-ku, Yokohama-shi, Kanagawa 2220033, JP
発明者
  • 塙 哲史 HANAWA Satoshi; JP
  • 伊海 佳昭 IKAI Yoshiaki; JP
代理人
  • 絹谷 信雄 KINUTANI Nobuo; JP
優先権情報
2013-15919131.07.2013JP
公開言語 (言語コード) 日本語 (JA)
出願言語 (言語コード) 日本語 (JA)
指定国 (国コード)
発明の名称
(EN) EXHAUST SYSTEM STATE DETECTION DEVICE
(FR) DISPOSITIF DE DÉTECTION D'ÉTAT DE SYSTÈME D'ÉCHAPPEMENT
(JA) 排気系の状態検出装置
要約
(EN)
In order to provide an exhaust system state detection device with which the exhaust temperature can be detected effectively using a simple configuration, an exhaust system state detection device according to the present invention is equipped with: an intake air oxygen concentration sensor (32) that detects the intake air oxygen concentration in an engine (10); an engine rotation sensor (30) and an acceleration position sensor (31) that detect the operating state; an indicated thermal efficiency calculation unit (42) that calculates the amount of change in the indicated thermal efficiency of the engine (10) on the basis of the intake air concentration, the fuel injection start timing, and a previously stored first model equation defining the relationship between the intake air concentration, the injection start timing, and the amount of change in the indicated thermal efficiency; and an exhaust temperature calculation unit (43) that calculates the exhaust temperature of the engine (10) on the basis of the amount of change in the indicated thermal efficiency and a previously stored second model equation defining the relationship between the exhaust temperature and the amount of change in the indicated thermal efficiency.
(FR)
L'invention concerne un dispositif de détection d'état de système d'échappement grâce auquel la température d'échappement peut être détectée efficacement à l'aide d'une configuration simple, ledit dispositif selon l'invention étant pourvu : d'un capteur de concentration en oxygène d'air d'admission (32) qui détecte la concentration en oxygène d'air d'admission dans un moteur (10); d'un capteur de rotation de moteur (30) et d'un capteur de position d'accélération (31) qui détectent l'état de fonctionnement; d'une unité de calcul de rendement thermique indiqué (42) qui calcule la quantité de changement dans le rendement thermique indiqué du moteur (10) sur la base de la concentration d'air d'admission, du calage du début d'injection de carburant, et d'une première équation de modèle, stockée au préalable, définissant la relation entre la concentration d'air d'admission, le calage du début d'injection et la quantité de changement dans le rendement thermique indiqué; d'une unité de calcul de température d'air d'échappement (43) qui calcule la température d'échappement du moteur (10) sur la base de la quantité de changement dans le rendement thermique indiqué et d'une seconde équation de modèle, stockée au préalable, définissant la relation entre la température d'échappement et la quantité de changement dans le rendement thermique indiqué.
(JA)
排気系の状態検出装置に関し、簡素な構成で、排気温度を効果的に検出する。 エンジン(10)の吸気酸素濃度を検出する吸気酸素濃度センサ(32)と、運転状態を検出するエンジン回転センサ(30)、アクセル開度センサ(31)と、吸気酸素濃度、燃料の噴射開始時期及び、予め記憶した吸気酸素濃度と噴射開始時期と図示熱効率変化量との関係を規定する第1モデル式に基づいて、エンジン(10)の図示熱効率変化量を演算する図示熱効率演算部(42)と、図示熱効率変化量及び、予め記憶した排気温度と図示熱効率変化量との関係を規定した第2モデル式に基づいて、エンジン(10)の排気温度を演算する排気温度演算部(43)とを備えた。
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