JP2020097922A - 第1の排ガス浄化コンポーネントと第2の排ガス浄化コンポーネントとを有する内燃機関を作動させる方法および制御装置 - Google Patents
第1の排ガス浄化コンポーネントと第2の排ガス浄化コンポーネントとを有する内燃機関を作動させる方法および制御装置 Download PDFInfo
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- JP2020097922A JP2020097922A JP2019185636A JP2019185636A JP2020097922A JP 2020097922 A JP2020097922 A JP 2020097922A JP 2019185636 A JP2019185636 A JP 2019185636A JP 2019185636 A JP2019185636 A JP 2019185636A JP 2020097922 A JP2020097922 A JP 2020097922A
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- exhaust gas
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- gas purification
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- purification component
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
四元触媒26の充填レベルは直接には測定可能でないため、図1の制御装置16で計算されるべき計算モデル16.1を用いてモデル化される。計算モデル16.1は、制御装置16で実行されるサブプログラムである。
14 排ガス設備
16 制御装置
16.1 コンピュータ可読の媒体
16.2 コンピュータプログラム製品
27 第2の排ガス浄化コンポーネント
31 第1の排ガス浄化コンポーネント
52 連通部
110 出力エミッションモデル
210 入力エミッションモデル
Claims (10)
- 第1の排ガス浄化コンポーネント(31)と、前記第1の排ガス浄化コンポーネント(31)の下流側に第2の排ガス浄化コンポーネント(27)とが配置された排ガス設備(14)を有する内燃機関(10)を作動させる方法であって、前記第2の排ガス浄化コンポーネント(27)は少なくとも1つの排ガス成分のための蓄積器を有している、そのような方法において、前記第1の排ガス浄化コンポーネント(31)の出力部で生じる少なくとも1つの排ガス成分の出力濃度が出力エミッションモデル(110)によって計算され、前記第2の排ガス浄化コンポーネント(27)の入力部で生じる少なくとも1つの排ガス成分の入力濃度が計算された前記出力濃度に依存して決定され、こうして決定された少なくとも1つの排ガス成分の入力濃度に依存して前記内燃機関(10)が作動することを特徴とする方法。
- 前記内燃機関(10)は、前記第2の排ガス浄化コンポーネント(27)の蓄積器の充填レベルの制御のために、前記第1の排ガス浄化コンポーネント(31)の計算された出力濃度と同一になるように決定される前記第2の排ガス浄化コンポーネントの入力濃度に依存して作動することを特徴とする、請求項1に記載の方法。
- 前記内燃機関(10)は、それが前記第1の排ガス浄化コンポーネント(31)と前記第2の排ガス浄化コンポーネント(27)の間に二次空気を排ガス設備(14)へ吹込み可能である連通部(52)が配置された排ガス設備を有している場合、前記第1の排ガス浄化コンポーネント(31)の出力エミッションモデル(110)によって計算される少なくとも1つの排ガス成分および導入された二次空気量の出力濃度に依存して前記第2の排ガス浄化コンポーネント(27)の入力エミッションモデル(210)によって決定される入力濃度に依存して作動することを特徴とする、請求項1に記載の方法。
- 前記内燃機関(10)は、前記第1の排ガス浄化コンポーネント(31)の出力部で生じる少なくとも1つの排ガス成分の濃度について前記出力エミッションモデル(110)が空気過剰率ラムダ<1に相当する値を計算し、前記第2の排ガス浄化コンポーネント(27)の入力部で生じる少なくとも1つの排ガス成分の濃度について前記入力エミッションモデル(210)が1に等しい空気過剰率ラムダに相当する値を計算する程度の量の二次空気が吹き込まれるように作動することを特徴とする、請求項3に記載の方法。
- 前記内燃機関(10)は、前記第1の排ガス浄化コンポーネント(31)の出力部で生じる少なくとも1つの排ガス成分の濃度について前記出力エミッションモデル(110)が0.98<ラムダ1以下が成り立つ空気過剰率ラムダに相当する値を計算し、前記第2の排ガス浄化コンポーネント(27)の入力部で生じる少なくとも1つの排ガス成分の濃度について前記入力エミッションモデル(210)が1よりも大きいラムダ値に相当する値を計算する程度の量の二次空気が吹き込まれるように作動することを特徴とする、請求項3に記載の方法。
- 前記第1の排ガス浄化コンポーネント(31)の出力部で生じる少なくとも1つの排ガス成分の濃度について前記出力エミッションモデル(110)により計算された濃度が前記第2の排ガス浄化コンポーネント(27)のすす負荷のモデル化のために利用されることを特徴とする、請求項1に記載の方法。
- 第1の排ガス浄化コンポーネント(31)と、前記第1の排ガス浄化コンポーネント(31)の下流側に第2の排ガス浄化コンポーネント(27)とが配置された排ガス設備(14)を有する内燃機関(10)のための制御装置(16)であって、前記第2の排ガス浄化コンポーネント(27)は少なくとも1つの排ガス成分のための蓄積器を有している、そのような制御装置において、前記制御装置(16)は、前記第1の排ガス浄化コンポーネント(31)の出力部で生じる少なくとも1つの排ガス成分の出力濃度を出力エミッションモデル(110)によって計算し、前記第2の排ガス浄化コンポーネント(27)の入力部で生じる少なくとも1つの排ガス成分の入力濃度を計算された前記出力濃度に依存して決定し、少なくとも1つの排ガス成分の入力濃度に依存して前記内燃機関(10)を作動させるためにセットアップされることを特徴とする制御装置。
- 請求項2から6までのいずれか1項に記載の方法の進行を制御するためにセットアップされることを特徴とする、請求項7に記載の制御装置(16)。
- 請求項1から6までのいずれか1項に記載の方法の各ステップを実行するように請求項7に記載の制御装置(16)に指図する命令を有しているコンピュータプログラム(16.2)。
- 請求項9の前記コンピュータプログラム製品(16.2)が機械可読の形式で格納されているコンピュータ可読媒体(16.1)。
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