Patents by Inventor Toshinari Shinohara
Toshinari Shinohara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8707936Abstract: To provide a control system for an internal combustion engine, which is capable of providing a stable intake air amount through reduction of pumping loss and blow-back of combustion gases by appropriately controlling the valve-opening timing of the intake valves, and thereby being capable of securing excellent drivability. In the control system 1, the valve-closing timing of the exhaust valve 9 is changed by an exhaust-side variable valve-operating mechanism 60, whereby the internal EGR amount is controlled, and the valve-opening timing of an intake valve 8 of an internal combustion engine 3 is changed by an intake-side variable valve-operating mechanism 40.Type: GrantFiled: October 15, 2008Date of Patent: April 29, 2014Assignee: Honda Motor Co., Ltd.Inventors: Toru Kitamura, Toshinari Shinohara, Chiho Itoga, Ken Ogawa
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Patent number: 8457866Abstract: An ignition timing control system for an internal combustion engine is provided to ensure stable combustion without causing misfire or knocking, by properly setting ignition timing in the compression stroke injection mode, thereby improving drivability. The ignition timing control system for the engine, that directly injects fuel into the cylinders and that is operated by switching the fuel injection mode between an intake stroke injection mode and a compression stroke injection mode, includes a fuel injection timing-setting device for setting a fuel injection timing according to an engine speed of the engine and a fuel injection amount, a basic value-setting device for setting a basic value of ignition timing according to the engine speed of the engine and the fuel injection timing, and an ignition timing-setting device for setting ignition timing in the compression stroke injection mode by correcting the basic value according to a detected air-fuel ratio.Type: GrantFiled: October 15, 2008Date of Patent: June 4, 2013Assignee: Honda Motor Co., Ltd.Inventors: Chiho Itoga, Toru Kitamura, Toshinari Shinohara
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Patent number: 8428854Abstract: There is provided an internal EGR control system for an internal combustion engine, which is capable of ensuring an excellent combustion state by properly controlling an internal EGR amount.Type: GrantFiled: September 4, 2008Date of Patent: April 23, 2013Assignee: Honda Motor Co., Ltd.Inventors: Toshinari Shinohara, Toru Kitamura, Chiho Itoga
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Publication number: 20100269801Abstract: To provide a control system for an internal combustion engine, which is capable of providing a stable intake air amount through reduction of pumping loss and blow-back of combustion gases by appropriately controlling the valve-opening timing of the intake valves, and thereby being capable of securing excellent drivability. In the control system 1, the valve-closing timing of the exhaust valve 9 is changed by an exhaust-side variable valve-operating mechanism 60, whereby the internal EGR amount is controlled, and the valve-opening timing of an intake valve 8 of an internal combustion engine 3 is changed by an intake-side variable valve-operating mechanism 40.Type: ApplicationFiled: October 15, 2008Publication date: October 28, 2010Applicant: Honda Motor Co., Ltd.Inventors: Toru Kitamura, Toshinari Shinohara, Chiho Itoga, Ken Ogawa
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Publication number: 20100274463Abstract: To provide an ignition timing control system for an internal combustion engine, which is capable of ensuring stable combustion without causing a misfire or knocking, by properly setting ignition timing in the compression stroke injection mode, thereby making it possible to improve drivability.Type: ApplicationFiled: October 15, 2008Publication date: October 28, 2010Inventors: Chiho Itoga, Toru Kitamura, Toshinari Shinohara
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Publication number: 20100242930Abstract: There is provided an internal EGR control system for an internal combustion engine, which is capable of ensuring an excellent combustion state by properly controlling an internal EGR amount.Type: ApplicationFiled: September 4, 2008Publication date: September 30, 2010Inventors: Toshinari Shinohara, Toru Kitamura, Chiho Itoga
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Patent number: 7735477Abstract: An internal EGR control system for an internal combustion engine, which is capable of controlling the internal EGR amount with accuracy, when controlling the internal EGR by changing both the exhaust cam phase and the exhaust valve lift. An internal EGR control system for an internal combustion engine controls internal EGR in which combustion gases are caused to remain in a cylinder. An ECU sets a target cam phase serving as a target of the exhaust cam phase, and controls a variable exhaust cam phase mechanism such that the exhaust cam phase becomes equal to the target cam phase. ECU 2 sets a target lift of an exhaust valve according to a detected actual cam phase and calculated valve-closing timing, and controls a variable exhaust valve lift mechanism such that the lift of the exhaust valve becomes equal to the target lift.Type: GrantFiled: October 24, 2007Date of Patent: June 15, 2010Assignee: Honda Motor Co., Ltd.Inventors: Toru Kitamura, Ken Ogawa, Toshinari Shinohara, Chiho Itoga
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Patent number: 7721709Abstract: A fuel injection control apparatus and method for an internal combustion engine are provided for appropriately controlling the amounts of fuel supplied from an in-cylinder fuel injection valve and a port fuel injection valve to a cylinder in a simple control approach while satisfactorily reflecting a fuel transport behavior as a whole cylinder. An ECU calculates a required in-cylinder injection amount and a required port injection amount, calculates an in-cylinder injected fuel behavior parameter of a fuel from the in-cylinder fuel injection valve and a port injected fuel behavior parameter of the fuel from the port fuel injection valve, a net in-cylinder injection amount in accordance with the in-cylinder and port injected fuel behavior parameters based on the required in-cylinder injection amount, and a net port injection amount in accordance with the in-cylinder and port injected fuel behavior parameters based on the required port injection amount.Type: GrantFiled: December 27, 2007Date of Patent: May 25, 2010Assignee: Honda Motor Co., Ltd.Inventors: Toshinari Shinohara, Ken Ogawa, Toru Kitamura, Chiho Itoga
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Patent number: 7725244Abstract: A control apparatus and method for an internal combustion engine are provided for ensuring a stable combustion state and improving the fuel efficiency when an air-fuel mixture is burnt with self ignition while auxiliarily using a spark ignition. The control apparatus for an internal combustion engine which is operated in a plurality of modes including a torch self ignition combustion mode comprises an ECU. In the torch self ignition combustion mode, the ECU controls an internal EGR amount, calculates an actual exhaust closing angle, calculates a target exhaust closing angle, calculates a closing angle deviation, calculates a fuel injection amount for forming a homogeneous air-fuel mixture, calculates a correction coefficient in accordance with the closing angle deviation, and corrects a basic value by the correction coefficient to calculate a fuel injection amount for forming a stratified air-fuel mixture.Type: GrantFiled: December 28, 2007Date of Patent: May 25, 2010Assignee: Honda Motor Co., Ltd.Inventors: Chiho Itoga, Ken Ogawa, Toru Kitamura, Toshinari Shinohara
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Patent number: 7706958Abstract: An EGR control apparatus and method for an internal combustion engine which burns an air-fuel mixture with self ignition in addition to a flame propagation combustion, are provided for improving the combustion efficiency, engine output, drivability, and exhaust gas characteristics in an internal combustion engine which involves a self ignition combustion of an air-fuel mixture in addition to a flame propagation combustion.Type: GrantFiled: December 27, 2007Date of Patent: April 27, 2010Assignee: Honda Motor Co., Ltd.Inventors: Chiho Itoga, Ken Ogawa, Toru Kitamura, Toshinari Shinohara
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Patent number: 7574299Abstract: A fuel injection control apparatus and method for an internal combustion engine are provided for appropriately calculating fuel injection times for an in-cylinder fuel injection valve and a port fuel injection valve, thereby accurately controlling the amounts of fuel supplied to the internal combustion engine from the in-cylinder fuel injection valve and the port fuel injection valve, respectively. The fuel injection control apparatus calculates an in-cylinder fuel injection amount which should be injected by the in-cylinder fuel injection valve, and calculates an in-cylinder fuel injection time which is a valve opening time of the in-cylinder fuel injection valve in accordance with the calculated in-cylinder fuel injection amount and an acquired cylinder internal pressure.Type: GrantFiled: December 27, 2007Date of Patent: August 11, 2009Assignee: Honda Motor Co., Ltd.Inventors: Toshinari Shinohara, Ken Ogawa, Toru Kitamura, Chiho Itoga
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Patent number: 7444999Abstract: A control system for an internal combustion engine, which is capable of positively preventing a misfire or knocking during a compression ignition combustion mode by switching from the compression ignition combustion mode to a spark ignition combustion mode in appropriate timing. The engine is operated while switching between the compression ignition and spark ignition combustion modes. The control system (ECU) sets a target operating gas temperature to which the temperature of operating gases in a combustion chamber is to be controlled in the compression ignition combustion mode, sets a target internal EGR amount to which the internal EGR amount is to be controlled, such that the temperature of operating gases in the combustion chamber becomes equal to the target operating gas temperature, and switches the combustion mode to the spark ignition combustion mode depending on the target internal EGR amount.Type: GrantFiled: October 31, 2007Date of Patent: November 4, 2008Assignee: Honda Motor Co., Ltd.Inventors: Toru Kitamura, Ken Ogawa, Toshinari Shinohara, Chiho Itoga
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Publication number: 20080162015Abstract: A fuel injection control apparatus and method for an internal combustion engine are provided for appropriately controlling the amounts of fuel supplied from an in-cylinder fuel injection valve and a port fuel injection valve to a cylinder in a simple control approach while satisfactorily reflecting a fuel transport behavior as a whole cylinder. An ECU calculates a required in-cylinder injection amount and a required port injection amount, calculates an in-cylinder injected fuel behavior parameter of a fuel from the in-cylinder fuel injection valve and a port injected fuel behavior parameter of the fuel from the port fuel injection valve, a net in-cylinder injection amount in accordance with the in-cylinder and port injected fuel behavior parameters based on the required in-cylinder injection amount, and a net port injection amount in accordance with the in-cylinder and port injected fuel behavior parameters based on the required port injection amount.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Inventors: Toshinari Shinohara, Ken Ogawa, Toru Kitamura, Chiho Itoga
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Publication number: 20080162020Abstract: An EGR control apparatus and method for an internal combustion engine which burns an air-fuel mixture with self ignition in addition to a flame propagation combustion, are provided for improving the combustion efficiency, engine output, drivability, and exhaust gas characteristics in an internal combustion engine which involves a self ignition combustion of an air-fuel mixture in addition to a flame propagation combustion.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Applicant: Honda Motor Co., Ltd.Inventors: Chiho Itoga, Ken Ogawa, Toru Kitamura, Toshinari Shinohara
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Publication number: 20080162021Abstract: A control apparatus and method for an internal combustion engine are provided for ensuring a stable combustion state and improving the fuel efficiency when an air-fuel mixture is burnt with self ignition while auxiliarily using a spark ignition. The control apparatus for an internal combustion engine which is operated in a plurality of modes including a torch self ignition combustion mode comprises an ECU. In the torch self ignition combustion mode, the ECU controls an internal EGR amount, calculates an actual exhaust closing angle, calculates a target exhaust closing angle, calculates a closing angle deviation, calculates a fuel injection amount for forming a homogeneous air-fuel mixture, calculates a correction coefficient in accordance with the closing angle deviation, and corrects a basic value by the correction coefficient to calculate a fuel injection amount for forming a stratified air-fuel mixture.Type: ApplicationFiled: December 28, 2007Publication date: July 3, 2008Applicant: Honda Motor Co., Ltd.Inventors: Chiho Itoga, Ken Ogawa, Toru Kitamura, Toshinari Shinohara
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Publication number: 20080162014Abstract: A fuel injection control apparatus and method for an internal combustion engine are provided for appropriately calculating fuel injection times for an in-cylinder fuel injection valve and a port fuel injection valve, thereby accurately controlling the amounts of fuel supplied to the internal combustion engine from the in-cylinder fuel injection valve and the port fuel injection valve, respectively. The fuel injection control apparatus calculates an in-cylinder fuel injection amount which should be injected by the in-cylinder fuel injection valve, and calculates an in-cylinder fuel injection time which is a valve opening time of the in-cylinder fuel injection valve in accordance with the calculated in-cylinder fuel injection amount and an acquired cylinder internal pressure.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Inventors: Toshinari Shinohara, Ken Ogawa, Toru Kitamura, Chiho Itoga
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Publication number: 20080110422Abstract: A control system for an internal combustion engine, which is capable of positively preventing a misfire or knocking during a compression ignition combustion mode by switching from the compression ignition combustion mode to a spark ignition combustion mode in appropriate timing. The engine is operated while switching between the compression ignition and spark ignition combustion modes. The control system (ECU) sets a target operating gas temperature to which the temperature of operating gases in a combustion chamber is to be controlled in the compression ignition combustion mode, sets a target internal EGR amount to which the internal EGR amount is to be controlled, such that the temperature of operating gases in the combustion chamber becomes equal to the target operating gas temperature, and switches the combustion mode to the spark ignition combustion mode depending on the target internal EGR amount.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Applicant: Honda Motor Co., Ltd.Inventors: Toru Kitamura, Ken Ogawa, Toshinari Shinohara, Chiho Itoga
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Patent number: 7363906Abstract: A control system for an internal combustion engine, which can determine just enough amounts of demanded combustion fuel and auxiliary fuel during execution of auxiliary fuel supply, for improvement of fuel economy and drivability and the emission-reducing capability of a catalyst. The control system carries out auxiliary fuel supply for a cylinder during a predetermined time period within the expansion and exhaust strokes, to control the catalyst to a predetermined state for its emission-reducing capability. The control system calculates a whole demanded fuel amount to make oxygen concentration in exhaust gases equal to a predetermined value for controlling the catalyst to the state during auxiliary fuel supply, determines the amount of demanded combustion fuel to be supplied to obtain engine output, and determines the auxiliary fuel amount based on the difference between the whole demanded fuel amount and the demanded combustion fuel amount.Type: GrantFiled: September 26, 2006Date of Patent: April 29, 2008Assignee: Honda Motor Co., Ltd.Inventors: Ken Ogawa, Toshinari Shinohara, Tetsuaki Nakano
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Publication number: 20080092862Abstract: An internal EGR control system for an internal combustion engine, which is capable of controlling the internal EGR amount with accuracy, when controlling the internal EGR by changing both the exhaust cam phase and the exhaust valve lift. An internal EGR control system for an internal combustion engine controls internal EGR in which combustion gases are caused to remain in a cylinder. An ECU sets a target cam phase serving as a target of the exhaust cam phase, and controls a variable exhaust cam phase mechanism such that the exhaust cam phase becomes equal to the target cam phase. ECU 2 sets a target lift of an exhaust valve according to a detected actual cam phase and calculated valve-closing timing, and controls a variable exhaust valve lift mechanism such that the lift of the exhaust valve becomes equal to the target lift.Type: ApplicationFiled: October 24, 2007Publication date: April 24, 2008Applicant: Honda Motor Co., Ltd.Inventors: Toru Kitamura, Ken Ogawa, Toshinari Shinohara, Chiho Itoga
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Patent number: 7314041Abstract: An EGR control system that is capable of controlling the amount of recirculation of high-temperature and low-temperature recirculated gases, with high accuracy, to thereby improve the control accuracy of in-cylinder temperature. An ECU of an ERG control system calculates a fresh intake air ratio, and sets a target value of the fresh intake air ratio. The ECU calculates a feedback correction coefficient for converging the fresh intake air ratio to the target value, with an I-PD control algorithm, and sets an external EGR ratio and an internal EGR ratio. The ECU controls the EGR amount whose ratio is the larger, according to the larger one of the two ratios and the feedback correction coefficient, and controls the EGR amount whose ratio is the smaller, according to the smaller of the ratios and the learned value thereof.Type: GrantFiled: September 20, 2006Date of Patent: January 1, 2008Assignee: Honda Motor Co., Ltd.Inventors: Ken Ogawa, Toru Kitamura, Atsushi Umemoto, Toshinari Shinohara, Mitsuru Sugimoto, Tetsuaki Nakano