JP6686863B2 - 内燃機関の制御装置 - Google Patents
内燃機関の制御装置 Download PDFInfo
- Publication number
- JP6686863B2 JP6686863B2 JP2016244806A JP2016244806A JP6686863B2 JP 6686863 B2 JP6686863 B2 JP 6686863B2 JP 2016244806 A JP2016244806 A JP 2016244806A JP 2016244806 A JP2016244806 A JP 2016244806A JP 6686863 B2 JP6686863 B2 JP 6686863B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- cylinder
- catalyst temperature
- threshold value
- 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.)
- Expired - Fee Related
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- 238000002485 combustion reaction Methods 0.000 title claims description 67
- 239000000446 fuel Substances 0.000 claims description 95
- 239000003054 catalyst Substances 0.000 claims description 61
- 238000002347 injection Methods 0.000 description 12
- 239000007924 injection Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
31 触媒
50 ECU(内燃機関の制御装置)
Claims (1)
- 内燃機関の複数の気筒のうち、任意の気筒で筒内における燃焼時の空燃比が理論空燃比よりも小さいリッチ燃焼を実行させ、他の気筒で筒内における燃焼時の空燃比が理論空燃比よりも大きいリーン燃焼を実行させ、前記複数の気筒からの排気を浄化する触媒を昇温する触媒昇温制御を実行する実行部と、
前記内燃機関の回転変動量を算出する変動量算出部と、
前記回転変動量が第1閾値よりも大きい場合に、失火が発生していると判定する失火判定部と、
前記触媒昇温制御の実行中に、前記回転変動量が前記第1閾値よりも小さな第2閾値を超えた場合、前記触媒昇温制御時における前記リッチ燃焼を実行する気筒における空燃比と前記リーン燃焼を実行する気筒における空燃比との差分を、前記回転変動量が前記第2閾値未満の場合の前記差分よりも小さくする制御部と、
を備え、
前記第2閾値は、前記触媒昇温制御に起因して、前記回転変動量が前記触媒昇温制御を実行していない場合よりも大きくなることによって、前記失火の判定精度が低下しないよう、前記触媒昇温制御が実行されている間設定される閾値である、
内燃機関の制御装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016244806A JP6686863B2 (ja) | 2016-12-16 | 2016-12-16 | 内燃機関の制御装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016244806A JP6686863B2 (ja) | 2016-12-16 | 2016-12-16 | 内燃機関の制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018096355A JP2018096355A (ja) | 2018-06-21 |
JP6686863B2 true JP6686863B2 (ja) | 2020-04-22 |
Family
ID=62633675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016244806A Expired - Fee Related JP6686863B2 (ja) | 2016-12-16 | 2016-12-16 | 内燃機関の制御装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6686863B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019039308A (ja) * | 2017-08-22 | 2019-03-14 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3915335B2 (ja) * | 1999-08-30 | 2007-05-16 | 株式会社デンソー | ハイブリッド車両の制御装置 |
JP4490721B2 (ja) * | 2004-04-12 | 2010-06-30 | 三菱自動車工業株式会社 | エンジンの失火検出装置及びエンジンの燃焼制御装置 |
JP2006233800A (ja) * | 2005-02-23 | 2006-09-07 | Toyota Motor Corp | 内燃機関の失火判定装置および失火判定方法 |
JP2012057492A (ja) * | 2010-09-06 | 2012-03-22 | Denso Corp | 触媒暖機制御装置 |
JP6309474B2 (ja) * | 2015-02-20 | 2018-04-11 | 日立オートモティブシステムズ株式会社 | 内燃機関の空燃比制御装置 |
-
2016
- 2016-12-16 JP JP2016244806A patent/JP6686863B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2018096355A (ja) | 2018-06-21 |
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