JPH0317118U - - Google Patents
Info
- Publication number
- JPH0317118U JPH0317118U JP7583889U JP7583889U JPH0317118U JP H0317118 U JPH0317118 U JP H0317118U JP 7583889 U JP7583889 U JP 7583889U JP 7583889 U JP7583889 U JP 7583889U JP H0317118 U JPH0317118 U JP H0317118U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- engine
- calculation unit
- burnup
- flow rate
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 15
- 239000007789 gas Substances 0.000 claims 7
- 239000003638 chemical reducing agent Substances 0.000 claims 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004905 short-term response Effects 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図はこの考案の一実施例によるエンジン排
ガスの脱硝制御装置を適用した脱硝装置の全体構
成を示すブロツク図、第２図は上記脱硝制御装置
の構成を示すブロツク図である。
１……デイーゼルエンジン、４……アンモニア
噴霧器、６……反応器、９……流量制御弁、１０
……流量計、２０……脱硝制御装置、２１……Ｎ
Ｏｘ濃度推定演算部、２２……排ガス流量推定演
算部、２３，２４……乗算器（補正部）、２５…
…ＮＯｘモル数推定演算部、２６……脱硝ＮＯｘ
量演算部、２７……アンモニア流量演算部、２８
……ＰＩＤ制御部、３１……経年変化データ部、
３２……燃焼度推定演算部、３３……短期応答デ
ータ部。
FIG. 1 is a block diagram showing the overall structure of a denitrification device to which an engine exhaust gas denitrification control device according to an embodiment of the present invention is applied, and FIG. 2 is a block diagram showing the structure of the denitrification control device. DESCRIPTION OF SYMBOLS 1... Diesel engine, 4... Ammonia sprayer, 6... Reactor, 9... Flow rate control valve, 10
...flow meter, 20 ... denitrification control device, 21 ...N
Ox concentration estimation calculation unit, 22... Exhaust gas flow rate estimation calculation unit, 23, 24... Multiplier (correction unit), 25...
...NOx mole number estimation calculation unit, 26...Denitrification NOx
Amount calculation section, 27...Ammonia flow rate calculation section, 28
... PID control section, 31 ... secular change data section,
32... Burnup estimation calculation section, 33... Short-term response data section.
Claims (1)
窒素酸化物を還元剤によつて還元し、該窒素酸化
物の排出量を軽減するようにしたエンジン排ガス
の脱硝装置において、 エンジン関連量から窒素酸化物の濃度を推定演
算する窒素酸化物濃度推定演算部と、 エンジン関連量から排ガス流量を推定演算する
排ガス流量推定演算部と、 エンジン関連量から燃焼度を推定演算する燃焼
度推定演算部と、 該燃焼度推定演算部から出力される燃焼度関連
量によつて、前記窒素酸化物濃度と排ガス流量の
各推定値を補正する補正部と、 補正後の窒素酸化物濃度と排ガス流量に基づい
て前記還元剤の量を制御する制御部と を具備することを特徴とするエンジン排ガスの
脱硝制御装置。 (2) 前記燃焼度推定演算部は、エンジン関連量
にフアジイ推論を施して前記各推定値を補正する
補正係数を出力することを特徴とする請求項１記
載のエンジン排ガスの脱硝制御装置。[Scope of Claim for Utility Model Registration] (1) An engine exhaust gas denitrification device that reduces nitrogen oxides contained in exhaust gas emitted from an engine using a reducing agent to reduce the amount of nitrogen oxides emitted. , a nitrogen oxide concentration estimation calculation unit that estimates and calculates the concentration of nitrogen oxides from engine-related quantities; an exhaust gas flow rate estimation and calculation unit that estimates and calculates exhaust gas flow rate from engine-related quantities; and an estimation and calculation unit that estimates burnup from engine-related quantities. a burnup estimation calculation unit that corrects the estimated values of the nitrogen oxide concentration and the exhaust gas flow rate based on the burnup related quantities output from the burnup estimation calculation unit; A control unit for controlling the amount of the reducing agent based on the concentration of the reducing agent and the flow rate of the exhaust gas. (2) The engine exhaust gas denitrification control device according to claim 1, wherein the burnup estimation calculation unit outputs a correction coefficient for correcting each of the estimated values by performing fuzzy inference on engine-related quantities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7583889U JPH0521615Y2 (en) | 1989-06-28 | 1989-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7583889U JPH0521615Y2 (en) | 1989-06-28 | 1989-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0317118U true JPH0317118U (en) | 1991-02-20 |
| JPH0521615Y2 JPH0521615Y2 (en) | 1993-06-03 |
Family
ID=31616770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7583889U Expired - Lifetime JPH0521615Y2 (en) | 1989-06-28 | 1989-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521615Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006157332A (en) * | 2004-11-29 | 2006-06-15 | Audio Technica Corp | Condenser microphone unit |
| JP2006274845A (en) * | 2005-03-28 | 2006-10-12 | Mitsubishi Fuso Truck & Bus Corp | NOx EMISSION CALCULATION DEVICE OF INTERNAL COMBUSTION ENGINE |
| JP2007312279A (en) * | 2006-05-22 | 2007-11-29 | Audio Technica Corp | Condenser microphone unit |
| JP2012007593A (en) * | 2010-06-28 | 2012-01-12 | Honda Motor Co Ltd | Control device of plant |
| WO2014192846A1 (en) * | 2013-05-30 | 2014-12-04 | トヨタ自動車株式会社 | Error diagnostic device for exhaust purification device |
-
1989
- 1989-06-28 JP JP7583889U patent/JPH0521615Y2/ja not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006157332A (en) * | 2004-11-29 | 2006-06-15 | Audio Technica Corp | Condenser microphone unit |
| JP4615972B2 (en) * | 2004-11-29 | 2011-01-19 | 株式会社オーディオテクニカ | Condenser microphone unit |
| JP2006274845A (en) * | 2005-03-28 | 2006-10-12 | Mitsubishi Fuso Truck & Bus Corp | NOx EMISSION CALCULATION DEVICE OF INTERNAL COMBUSTION ENGINE |
| JP2007312279A (en) * | 2006-05-22 | 2007-11-29 | Audio Technica Corp | Condenser microphone unit |
| JP2012007593A (en) * | 2010-06-28 | 2012-01-12 | Honda Motor Co Ltd | Control device of plant |
| WO2014192846A1 (en) * | 2013-05-30 | 2014-12-04 | トヨタ自動車株式会社 | Error diagnostic device for exhaust purification device |
| JP6015855B2 (en) * | 2013-05-30 | 2016-10-26 | トヨタ自動車株式会社 | Exhaust gas purification device abnormality diagnosis device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0521615Y2 (en) | 1993-06-03 |
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