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公开(公告)号：US20190048807A1
公开(公告)日：2019-02-14
申请号：US16076755
申请日：2017-01-13
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Naoki YONEYA , Masayuki SARUWATARI , Kazuhiro ORYOJI
Abstract: Because an in-cylinder temperature becomes low immediately after cold starting, it is impossible to take large ignition timing retard to avoid combustion instability and it takes time to activate a catalyst existing downstream of an internal combustion engine.The present invention provides an internal combustion engine control apparatus including an ignition timing control unit to control an ignition timing of an ignition device attached to an internal combustion engine. The internal combustion engine control apparatus includes an in-cylinder temperature raising unit that raises an in-cylinder temperature, the in-cylinder temperature is raised by the in-cylinder temperature raising unit, and a retard amount of the ignition timing of the ignition device is increased by the ignition timing control unit.
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公开(公告)号：US20190145305A1
公开(公告)日：2019-05-16
申请号：US15759517
申请日：2016-07-29
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yuusuke KIHARA , Yoshihiro SUKEGAWA , Kazuhiro ORYOJI , Kenichiro OGATA , Minoru OOSUGA , Masayuki SARUWATARI
Abstract: An object of the invention is to form a highly homogeneous air-fuel mixture which is not influenced by an engine rotation speed. Therefore, the invention provides a fuel injection control device including a cylinder, a first injector disposed at an upper portion of the cylinder in the axial direction and a center portion thereof in the radial direction, an intake valve disposed at an upper portion of the cylinder in the axial direction and an outer portion thereof in the radial direction in relation to the first fuel injection device, and a second injector supplying fuel from an upper portion of the cylinder in the axial direction and at least an outer portion in the radial direction in relation to the intake valve, in which a rotation speed of the engine is high, a fuel supply amount ratio of the first injector with respect to the second injector is controlled to be larger than that of a case where the rotation speed is low.
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公开(公告)号：US20180362044A1
公开(公告)日：2018-12-20
申请号：US15781332
申请日：2017-01-23
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Yoichi IIHOSHI , Toshio HORI , Kazuhiro ORYOJI
IPC: B60W30/18 , F02D41/30 , F02D41/00 , F02D41/04 , B60W10/02 , B60W10/06 , F02P5/04 , B60W20/40 , F02D43/00
Abstract: In a vehicle control device for stopping an internal combustion engine when a vehicle is traveling at a predetermined speed or higher and a stop condition of the internal combustion engine is satisfied, fuel is injected to the engine even when the stop condition is satisfied, when an EGR rate of the internal combustion engine is equal to or higher than a set value. Alternatively, when the EGR rate is equal to or higher than the set value, an EGR valve attached to an EGR pipe of the engine is controlled in a valve closing direction when the stop condition is satisfied. Alternatively, when the EGR rate is equal to or higher than the set value, clutch engagement is maintained for a clutch control device that disconnects torque transmission between an output shaft of the internal combustion engine and a vehicle drive shaft, even when the stop condition is satisfied.
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公开(公告)号：US20200240340A1
公开(公告)日：2020-07-30
申请号：US15761418
申请日：2016-08-08
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Hisayuki ORITA , Masayuki SARUWATARI , Kazuhiro ORYOJI , Motoyuki ABE
Abstract: An object of the present invention is to provide an engine system control device capable of stabilizing a combustion state, while improving fuel economy by performing intake air heating. According to the present invention, there is provided an engine system control device which controls an engine system including an engine configured to combust air-fuel mixture, an intake air path configured to take air to the engine, and an intake air heating mechanism configured to heat the intake air, wherein a heating amount of the intake air is controlled depending on a combustion speed of the air-fuel mixture.
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公开(公告)号：US20190048842A1
公开(公告)日：2019-02-14
申请号：US15763808
申请日：2016-08-02
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Kazuhiro ORYOJI , Masayuki SARUWATARI , Yoshihiro SUKEGAWA
Abstract: The invention provides an internal combustion engine control device capable of performing a stable combustion at a lean combustion limit. In an internal combustion engine control device that controls an internal combustion engine provided with an ignition device igniting an air-fuel mixture formed inside a combustion chamber, an intake side air temperature of the internal combustion engine is controlled in response to a compression ratio of the combustion chamber.
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Patent Agency Ranking
公开(公告)号：US20190024600A1
公开(公告)日：2019-01-24
申请号：US16066807
申请日：2016-11-16
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Yoshihiko AKAGI , Seiji ASANO , Kazuhiro ORYOJI
Abstract: Fuel injection control of an internal combustion engine requires an optimized fuel amount that can be burned completely with oxygen in intake air to be supplied, but the oxygen concentration in the atmospheric air is affected by humidity.By separately calculating a dry air flow rate that directly affects the oxygen amount and a humidity flow rate that is a change factor of the oxygen concentration in the intake air of the internal combustion engine, the fuel can be supplied to the cylinder of the internal combustion engine at an optimized air-fuel ratio. In addition, highly precise control involving EGR for flowback of a part of the exhaust gas flowing in the exhaust pipe to the intake pipe can also be achieved.
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公开(公告)号：US20200001236A1
公开(公告)日：2020-01-02
申请号：US16489008
申请日：2018-02-05
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Eri TAKAHASHI , Masato KANEEDA , Kazuhiro ORYOJI , Naoki YONEYA , Masayuki SARUWATARI
Abstract: An object of the present invention is to provide an exhaust gas purification system which exhibits high exhaust gas purification performance. The present invention provides an exhaust gas purification system including: a carrier containing aluminum oxide; an exhaust gas purification device including a catalyst provided on the carrier and containing gallium, and connected to an internal combustion engine; and a system connected to the exhaust gas purification device for increasing an oxygen concentration. The system for increasing an oxygen concentration provides an oxygen concentration higher than that of a post combusted gas of the internal combustion engine.
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公开(公告)号：US20190226443A1
公开(公告)日：2019-07-25
申请号：US16300439
申请日：2017-03-14
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Naoki YONEYA , Masayuki SARUWATARI , Kazuhiro ORYOJI
Abstract: An object of the present invention is to predict change of a combustion limit due to cycle variation of temperature and an EGR ratio and perform correction every cycle to decrease an amount of combustion consumption. Therefore, in an internal combustion engine control device that controls an internal combustion engine including a cylinder and an exhaust pipe, the internal combustion engine control device includes a control unit configured to perform EGR control of controlling an exhaust gas in the exhaust pipe to return to an inner cylinder of the cylinder, obtain temperature of the gas in the internal cylinder and an EGR ratio in a state where both an intake valve and an exhaust valve are closed in an combustion cycle, and correct a combustion parameter in a same combustion cycle as the combustion cycle on the basis of the obtained gas temperature and the obtained EGR ratio.
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公开(公告)号：US20180273037A1
公开(公告)日：2018-09-27
申请号：US15762404
申请日：2016-07-28
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yuuki OKUDA , Kazuhiro ORYOJI , Masayuki SARUWATARI
Abstract: To provide an internal combustion engine control device provided with a generator driven by an exhaust gas of an internal combustion engine and capable of increasing the power generation opportunity of the generator.The internal combustion engine control device according to the present invention is provided with the generator driven by the exhaust gas of the internal combustion engine, and includes an exhaust amount control unit which increases the amount of the exhaust gas supplied to the generator in a coasting state.
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10.发明申请公开(公告)号：US20200332759A1
公开(公告)日：2020-10-22
申请号：US16959888
申请日：2019-01-31
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Kazuhiro ORYOJI , Yoshihiko AKAGI
Abstract: An internal-combustion-engine control unit and control method are provided that can prevent an excessive ignition-timing retard while occurrences of knocking are suppressed. An internal-combustion-engine control unit that controls an internal-combustion engine, the internal-combustion-engine control unit including: a knock-occurrence-frequency sensing section that senses a knock occurrence-frequency of a cylinder; and a cylinder-wall-temperature computing section that computes a wall temperature of the cylinder on a basis of the knock occurrence-frequency sensed at the knock-occurrence-frequency sensing section.
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