JPWO2021001669A5 - - Google Patents
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- JPWO2021001669A5 JPWO2021001669A5 JP2021529535A JP2021529535A JPWO2021001669A5 JP WO2021001669 A5 JPWO2021001669 A5 JP WO2021001669A5 JP 2021529535 A JP2021529535 A JP 2021529535A JP 2021529535 A JP2021529535 A JP 2021529535A JP WO2021001669 A5 JPWO2021001669 A5 JP WO2021001669A5
- Authority
- JP
- Japan
- Prior art keywords
- combustion engine
- internal combustion
- egr
- passage
- intake
- 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.)
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- 238000002485 combustion reaction Methods 0.000 claims 24
- 238000000034 method Methods 0.000 claims 8
- 238000011144 upstream manufacturing Methods 0.000 claims 4
- 239000003054 catalyst Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
Claims (5)
前記内燃エンジンの停止後、所定の再始動条件が成立した場合に、
前記吸気通路のうち、ＥＧＲ通路の接続点よりも上流側に備わる吸気シャッタ弁を閉じて、前記吸気通路の有効断面積を縮小させ、
前記ＥＧＲ弁を開いた後、前記内燃エンジンのクランキングを開始させ、
前記クランキングの開始から前記内燃エンジンの回転数が上昇し、前記クランキングの開始前よりも高い所定回転数に達するまでの間、前記クランキングを継続させるとともに、前記吸気シャッタ弁を閉じた状態に維持し、
前記内燃エンジンの回転数が前記所定回転数に達した後、前記吸気シャッタ弁を開いて、筒内への実質的な空気の導入を許容し、前記ＥＧＲ弁を閉じてから所定時間の経過を待って燃焼を再開させる、
内燃エンジンの制御方法。An internal combustion engine control method in which an EGR system is provided in which an EGR valve is provided in which an effective cross-sectional area of the EGR passage is adjustable, and the intake passage is filled with EGR gas when the internal combustion engine is temporarily stopped. And,
When a predetermined restart condition is satisfied after the internal combustion engine is stopped,
Of the intake passages, the intake shutter valve provided on the upstream side of the connection point of the EGR passage is closed to reduce the effective cross-sectional area of the intake passage.
After opening the EGR valve, cranking of the internal combustion engine is started.
A state in which the cranking is continued and the intake shutter valve is closed from the start of the cranking until the rotation speed of the internal combustion engine increases and reaches a predetermined rotation speed higher than that before the start of the cranking. Keep in
After the rotation speed of the internal combustion engine reaches the predetermined rotation speed, the intake shutter valve is opened to allow substantially air to be introduced into the cylinder, and a predetermined time has elapsed since the EGR valve was closed. Wait and restart burning,
Internal combustion engine control method.
前記クランキング中に、前記吸気シャッタ弁を最小開度に維持し、前記ＥＧＲ弁を最大開度に維持する、
内燃エンジンの制御方法。The method for controlling an internal combustion engine according to claim 1.
During the cranking, the intake shutter valve is maintained at the minimum opening and the EGR valve is maintained at the maximum opening.
Internal combustion engine control method.
前記内燃エンジンが、排気通路のうち、前記ＥＧＲ通路の前記排気通路からの分岐点よりも上流側に設置された排気浄化触媒を備える、
内燃エンジンの制御方法。The method for controlling an internal combustion engine according to claim 1 or 2.
The internal combustion engine includes an exhaust purification catalyst installed in the exhaust passage on the upstream side of the branch point of the EGR passage from the exhaust passage.
Internal combustion engine control method.
前記ＥＧＲシステムにより、前記過給機の排気タービン下流の排気通路を流れる排気を、前記過給機の吸気コンプレッサ上流の吸気通路へ、前記ＥＧＲガスとして還流させる、
内燃エンジンの制御方法。The method for controlling an internal combustion engine according to any one of claims 1 to 3, wherein the internal combustion engine includes a supercharger.
By the EGR system, the exhaust gas flowing through the exhaust passage downstream of the exhaust turbine of the turbocharger is recirculated as the EGR gas to the intake passage upstream of the intake compressor of the turbocharger.
Internal combustion engine control method.
前記吸気通路のうち、前記ＥＧＲ通路の接続点よりも上流側に設置された、前記吸気通路の有効断面積を調整可能な吸気シャッタ弁と、を備える内燃エンジンを制御する、内燃エンジンの制御装置であって、
前記内燃エンジンの一時的な停止時に、前記吸気通路をＥＧＲガスで充填させ、
前記内燃エンジンの停止後、所定の再始動条件が成立した場合に、
前記吸気シャッタ弁を閉じて、前記吸気通路の有効断面積を縮小させ、
前記ＥＧＲ弁を開いた後、前記内燃エンジンのクランキングを開始させ、
前記クランキングの開始から前記内燃エンジンの回転数が所定回転数に達するまでの間、前記クランキングを継続させるとともに、前記吸気シャッタ弁を閉じた状態に維持し、
前記内燃エンジンの回転数が前記所定回転数に達した後、前記吸気シャッタ弁を開いて、筒内への実質的な空気の導入を許容し、前記ＥＧＲ弁を閉じてから所定時間の経過を待って燃焼を再開させる、
内燃エンジンの制御装置。The EGR passage is provided with an EGR valve interspersed so that the effective cross-sectional area of the EGR passage can be adjusted, and the intake passage and the exhaust passage are connected to each other via the EGR passage so as to be fluid communicable, and the EGR passage is used. , EGR system that recirculates the exhaust after combustion as EGR gas into the cylinder,
A control device for an internal combustion engine that controls an internal combustion engine including an intake shutter valve that is installed on the upstream side of the connection point of the EGR passage and is capable of adjusting the effective cross-sectional area of the intake passage. And
When the internal combustion engine is temporarily stopped, the intake passage is filled with EGR gas.
When a predetermined restart condition is satisfied after the internal combustion engine is stopped,
The intake shutter valve is closed to reduce the effective cross-sectional area of the intake passage.
After opening the EGR valve, cranking of the internal combustion engine is started.
From the start of the cranking until the rotation speed of the internal combustion engine reaches a predetermined rotation speed, the cranking is continued and the intake shutter valve is kept closed.
After the rotation speed of the internal combustion engine reaches the predetermined rotation speed, the intake shutter valve is opened to allow substantially air to be introduced into the cylinder, and a predetermined time has elapsed since the EGR valve was closed. Wait and restart burning,
Internal combustion engine control device.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2019/000645 WO2021001669A1 (en) | 2019-07-04 | 2019-07-04 | Method and device for controlling internal combustion engine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021001669A1 JPWO2021001669A1 (en) | 2021-01-07 |
| JPWO2021001669A5 true JPWO2021001669A5 (en) | 2022-05-16 |
| JP7287464B2 JP7287464B2 (en) | 2023-06-06 |
Family
ID=74101158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021529535A Active JP7287464B2 (en) | 2019-07-04 | 2019-07-04 | Control method and control device for internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7287464B2 (en) |
| WO (1) | WO2021001669A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7521678B2 (en) | 2021-02-19 | 2024-07-24 | 日産自動車株式会社 | Method and device for controlling series hybrid vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008215257A (en) * | 2007-03-06 | 2008-09-18 | Toyota Motor Corp | Starting device for internal combustion engine |
| JP2010281286A (en) * | 2009-06-05 | 2010-12-16 | Toyota Motor Corp | Start control device for internal combustion engine |
| JP2011247166A (en) * | 2010-05-26 | 2011-12-08 | Denso Corp | Engine control device |
| JP6447027B2 (en) * | 2014-11-10 | 2019-01-09 | 日産自動車株式会社 | EGR control device for engine |
| JP2019027296A (en) * | 2017-07-26 | 2019-02-21 | 愛三工業株式会社 | Engine system |
-
2019
- 2019-07-04 JP JP2021529535A patent/JP7287464B2/en active Active
- 2019-07-04 WO PCT/IB2019/000645 patent/WO2021001669A1/en active Application Filing
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