To improve exhaust emission from an internal combustion engine including a catalyst capable of occluding oxygen.SOLUTION: An exhaust emission control device for the internal combustion engine includes a catalyst 61 arranged in an exhaust passage of an internal combustion engine 10 (10') and capable of occluding oxygen, an occlusion amount calculation part 81 for calculating the oxygen occlusion amount of the catalyst, a poisoning amount calculation part 82 for calculating the poisoning amount of the catalyst, and an oxygen amount control part 83 for controlling an oxygen amount to be supplied to the catalyst on the basis of the oxygen occlusion amount and the poisoning amount.SELECTED DRAWING: Figure 1
【課題】酸素を吸蔵可能な触媒を備える内燃機関において、排気エミッションを改善する。【解決手段】内燃機関の排気浄化装置は、内燃機関10、10’の排気通路に配置されると共に酸素を吸蔵可能な触媒61と、触媒の酸素吸蔵量を算出する吸蔵量算出部81と、触媒の被毒量を算出する被毒量算出部82と、酸素吸蔵量及び被毒量に基づいて、触媒に供給される酸素量を制御する酸素量制御部83とを備える。【選択図】図1
EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
内燃機関の排気浄化装置
2020-07-09
Patent
Electronic Resource
Japanese
IPC: | F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
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