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公开(公告)号：US11326508B2
公开(公告)日：2022-05-10
申请号：US17051636
申请日：2019-04-23
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
摘要： An engine control apparatus includes an ignition control section and an injection control section. When the partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of a expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. The energy of the preceding ignition is set to be higher when the in-cylinder pressure specified by the in-cylinder pressure specification section is high than when the in-cylinder pressure is low.
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公开(公告)号：US11313269B2
公开(公告)日：2022-04-26
申请号：US17051511
申请日：2019-04-17
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
摘要： The invention is provided with an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Timing of the preceding ignition is set to be more retarded when an engine speed is high than when the engine speed is low.
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公开(公告)号：US11220971B2
公开(公告)日：2022-01-11
申请号：US17051606
申请日：2019-04-23
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
摘要： An engine apparatus includes an ignition control section and an injection control section. When the partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Energy of the preceding ignition is set to be lower when a swirl flow is gentle than when the swirl flow is intense.
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公开(公告)号：US11111871B2
公开(公告)日：2021-09-07
申请号：US17051627
申请日：2019-04-17
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
摘要： Provided is an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Ignition timing of the preceding ignition is set to be more advanced when an in-cylinder temperature specified by an in-cylinder temperature specification section is high than when the in-cylinder temperature is low.
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公开(公告)号：US11203969B2
公开(公告)日：2021-12-21
申请号：US17051700
申请日：2019-04-23
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
IPC分类号： F02B11/00 , F02D41/30 , F02B31/04 , F02D41/00 , F02D41/40 , F02P5/06 , F02D13/02 , F02D41/38
摘要： An engine control apparatus includes an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Energy of the preceding ignition is set to be higher when an engine speed is high than when the engine speed is low.
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公开(公告)号：US11199152B2
公开(公告)日：2021-12-14
申请号：US17051649
申请日：2019-04-17
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
摘要： Provided is an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Ignition timing of the preceding ignition is set to be more retarded when an in-cylinder pressure specified by an in-cylinder pressure specification section is high than when the in-cylinder pressure is low.
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公开(公告)号：US11220972B2
公开(公告)日：2022-01-11
申请号：US17051692
申请日：2019-04-23
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
摘要： An engine control apparatus includes an ignition control section and an injection control section. When the partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of a expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. The energy of the preceding ignition is set to be higher when fuel concentration specified by a fuel concentration specification section is low than when the fuel concentration is high.
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公开(公告)号：US11187179B2
公开(公告)日：2021-11-30
申请号：US17051535
申请日：2019-04-19
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
摘要： A control apparatus for a compression-ignition type engine is applied to an engine capable of carrying out partial compression ignition combustion. When the partial compression ignition combustion is carried out, an ignition control section of the control apparatus causes an ignition plug to carry out: main ignition in which a spark is generated to initiate the SI combustion; and preceding ignition in which the spark is generated at an earlier time point than the main ignition. An injection control section causes the ignition plug to inject fuel in an intake stroke. The ignition control section sets energy of the preceding ignition to be lower than energy of the main ignition and causes the ignition plug to carry out the preceding ignition after the fuel injection in the intake stroke or an early period or a middle period of a compression stroke.
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公开(公告)号：US11448156B2
公开(公告)日：2022-09-20
申请号：US17051596
申请日：2019-04-23
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
摘要： An engine control apparatus includes an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of a expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Energy of the preceding ignition is set to be lower when an in-cylinder temperature specified by an in-cylinder temperature specification section is high than when the in-cylinder temperature is low.
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公开(公告)号：US11326543B2
公开(公告)日：2022-05-10
申请号：US17051522
申请日：2019-04-17
发明人： Kota Matsumoto , Tomonori Urushihara , Keiji Maruyama , Masanari Sueoka , Ryohei Ono , Yuji Harada , Toru Miyamoto , Atsushi Inoue , Tatsuhiro Tokunaga , Takuya Ohura , Yusuke Kawai , Tomohiro Nishida , Keita Arai , Yodai Yamaguchi
IPC分类号： F02D41/30 , F02B5/00 , F02B9/02 , F02B31/06 , F02D13/02 , F02D41/40 , F02P5/04 , F02P5/15 , F02D41/38
摘要： The invention is provided with an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Timing of the preceding ignition is more advanced when a swirl flow is gentle than when the swirl flow is strong.
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