JP6520369B2 - Vgtターボ搭載車のegrガス量制御方法及びその装置 - Google Patents
Vgtターボ搭載車のegrガス量制御方法及びその装置 Download PDFInfo
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- JP6520369B2 JP6520369B2 JP2015097485A JP2015097485A JP6520369B2 JP 6520369 B2 JP6520369 B2 JP 6520369B2 JP 2015097485 A JP2015097485 A JP 2015097485A JP 2015097485 A JP2015097485 A JP 2015097485A JP 6520369 B2 JP6520369 B2 JP 6520369B2
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- 239000000446 fuel Substances 0.000 claims description 34
- 238000002347 injection Methods 0.000 claims description 32
- 239000007924 injection Substances 0.000 claims description 32
- 230000001052 transient Effects 0.000 claims description 12
- 239000007787 solid Substances 0.000 description 18
- 230000001133 acceleration Effects 0.000 description 5
- 229910002089 NOx Inorganic materials 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Images
Classifications
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- 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
- Y02T10/12—Improving ICE efficiencies
Description
22 VGTターボ
33 EGRバルブ
35 VGベーン
45 過渡期VGT−EGR開度マップ
Claims (4)
- エンジンの吸排気系にVGTターボが接続され、燃料噴射量とエンジン回転数に基づいて、目標ブースト圧と目標EGRガス量となるようにVGベーンとEGRバルブを制御するVGTターボ搭載車のEGRガス量制御方法において、運転過渡期のVGベーン開度に対するEGRバルブの開度を設定した過渡期VGT−EGR開度マップを設定し、過渡期に、燃料噴射量とエンジン回転数に基づいて設定されるVGベーン開度を基に前記過渡期VGT−EGR開度マップからEGR開度を制御することを特徴とするVGTターボ搭載車のEGRガス量制御方法。
- 過渡期VGT−EGR開度マップは、VGベーン開度とEGRバルブ開度が比例するように作成され、過渡期に制御されるVGベーン開度を基に、過渡期VGT−EGR開度マップからEGRバルブが制御される請求項1記載のVGTターボ搭載車のEGRガス量制御方法。
- エンジンの吸排気系にVGTターボが接続され、燃料噴射量とエンジン回転数に基づいて、目標ブースト圧と目標EGRガス量となるようにVGベーンとEGRバルブを制御するVGTターボ制御部とEGRバルブ制御部を備えたVGTターボ搭載車のEGRガス量制御装置において、運転過渡期のVGベーン開度に対するEGRバルブの開度を設定した過渡期VGT−EGR開度マップを備え、過渡期に、VGTターボ制御部で制御するVGベーン開度を基に前記過渡期VGT−EGR開度マップからEGR開度を制御することを特徴とするVGTターボ搭載車のEGRガス量制御装置。
- エンジン回転数に基づいて、目標ブースト圧を設定する目標ブースト圧マップと、目標EGR開度を設定する目標EGR開度マップとを備えると共に、エンジン回転数に対して目標VGT開度を設定する目標VGT開度マップを備え、前記過渡期VGT−EGR開度マップは、VGベーン開度とEGRバルブ開度が比例するように設定され、過渡期に、VGTターボ制御部は、目標ブースト圧マップと目標VGT開度マップを基にVGベーン開度を制御し、EGRバルブ制御部は、VGベーン開度を基に前記過渡期VGT−EGR開度マップからEGRバルブの開度を制御する請求項3記載のVGTターボ搭載車のEGRガス量制御装置。
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Family Cites Families (3)
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JP2001193573A (ja) * | 1999-12-28 | 2001-07-17 | Honda Motor Co Ltd | 内燃機関の制御装置 |
JP3733281B2 (ja) * | 2000-07-31 | 2006-01-11 | 株式会社豊田自動織機 | 内燃機関の過給圧制御装置および過給圧制御方法 |
JP2011236878A (ja) * | 2010-05-13 | 2011-11-24 | Toyota Motor Corp | 内燃機関の制御装置 |
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