Patents by Inventor Kouichi Mori
Kouichi Mori 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: 10619614Abstract: A vehicle engine automatic control device has a brake pedal operation amount detecting unit that detects an amount of brake pedal operation by a driver, a negative pressure-based force multiplying unit that multiplies a force, with which a brake is operated, using an intake negative pressure of an engine, a negative pressure detecting unit that detects a negative pressure of the negative pressure-based force multiplying unit, and a coast stop control unit that stops the engine when the amount of brake pedal operation that is detected is equal to or greater than a first operation amount threshold during coast drive, and re-starts the engine when the negative pressure that is detected falls below a first negative pressure threshold after the engine stops.Type: GrantFiled: November 16, 2012Date of Patent: April 14, 2020Assignee: Nissan Motor Co., Ltd.Inventors: Kouichi Mori, Motoyuki Hattori
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Patent number: 9759139Abstract: A vehicle engine automatic control device has a brake operation amount detecting unit that detects an amount of brake operation by a driver, an engine stopping/re-starting unit that, during coast drive, stops an engine based on the amount of brake operation that is detected, and, after the engine stops, re-starts the engine when the amount of brake operation that is detected falls below a first threshold, and a first threshold setting unit that sets the first threshold smaller as vehicle speed becomes lower.Type: GrantFiled: October 23, 2012Date of Patent: September 12, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Kouichi Mori, Motoyuki Hattori
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Patent number: 9751526Abstract: A torque assist using a motor generator mechanically coupled to an output shaft of an engine via a belt is prohibited during a lock-up transition from a state where a lock-up clutch is released to a state where the lock-up clutch is engaged, and the torque assist using the motor generator is permitted when a condition for the execution of the torque assist is satisfied except during the lock-up transition.Type: GrantFiled: April 30, 2013Date of Patent: September 5, 2017Assignees: NISSAN MOTOR CO., LTD., JATCO LTDInventors: Kouichi Mori, Shigeru Tomoda
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Patent number: 9562480Abstract: An automatic engine-stop control device for a vehicle has a coast stop controlling section that stops an engine during a running of the vehicle when a predetermined condition is satisfied, a deceleration detecting section that detects a deceleration level of the vehicle, and an engine-stop time limiting section that limits a time length for which the coast stop controlling section keeps the engine in a stopped state if the deceleration level is smaller than or equal to a predetermined value.Type: GrantFiled: October 16, 2012Date of Patent: February 7, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Masahiro Hirano, Kouichi Mori
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Patent number: 9470156Abstract: A vehicle engine automatic control device has a brake operation amount detecting unit that detects an amount of brake operation by a driver, an engine stopping/re-starting unit that stops an engine when the amount of brake operation that is detected exceeds a first threshold during coast drive, and re-starts the engine when the amount of brake operation that is detected becomes equal to or lower than the first threshold after the engine stops, and a threshold setting unit that sets the first threshold smaller as a deceleration becomes lower.Type: GrantFiled: November 16, 2012Date of Patent: October 18, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Kouichi Mori, Motoyuki Hattori
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Patent number: 9376998Abstract: A device for controlling a vehicle is configured to determine whether or not a relay is fixedly closed before a vehicle travels and after a driver operates an ignition, and the driving of a starter motor and an SSG motor is inhibited when the relay is determined to be fixedly closed.Type: GrantFiled: February 25, 2013Date of Patent: June 28, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Kouichi Mori, Hironobu Takahashi
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Patent number: 9365110Abstract: While a vehicle speed is between a first certain vehicle speed and a second certain vehicle speed lower than the first certain vehicle speed, it is determined whether to perform vehicle control in accordance with conditions excluding a condition based on the estimated road surface slope.Type: GrantFiled: March 12, 2013Date of Patent: June 14, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Takashi Matsuda, Shouta Hamane, Motoyuki Hattori, Kouichi Mori
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Publication number: 20150300308Abstract: A device for controlling a vehicle is configured to determine whether or not a relay is fixedly closed before a vehicle travels and after a driver operates an ignition, and the driving of a starter motor and an SSG motor is inhibited when the relay is determined to be fixedly closed.Type: ApplicationFiled: February 25, 2013Publication date: October 22, 2015Inventors: Kouichi MORI, Hironobu TAKAHASHI
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Publication number: 20150148190Abstract: A torque assist using a motor generator mechanically coupled to an output shaft of an engine via a belt is prohibited during a lock-up transition from a state where a lock-up clutch is released to a state where the lock-up clutch is engaged, and the torque assist using the motor generator is permitted when a condition for the execution of the torque assist is satisfied except during the lock-up transition.Type: ApplicationFiled: April 30, 2013Publication date: May 28, 2015Applicants: NISSAN MOTOR CO., LTD., JATCO LtdInventors: Kouichi Mori, Shigeru Tomoda
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Publication number: 20140358406Abstract: A vehicle engine automatic control device has a brake operation amount detecting unit that detects an amount of brake operation by a driver, an engine stopping/re-starting unit that, during coast drive, stops an engine based on the amount of brake operation that is detected, and, after the engine stops, re-starts the engine when the amount of brake operation that is detected falls below a first threshold, and a first threshold setting unit that sets the first threshold smaller as vehicle speed becomes lower.Type: ApplicationFiled: October 23, 2012Publication date: December 4, 2014Applicant: NISSAN MOTOR CO., LTD.Inventors: Kouichi Mori, Motoyuki Hattori
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Publication number: 20140336908Abstract: A vehicle engine automatic control device has a brake operation amount detecting unit that detects an amount of brake operation by a driver, an engine stopping/re-starting unit that stops an engine when the amount of brake operation that is detected exceeds a first threshold during coast drive, and re-starts the engine when the amount of brake operation that is detected becomes equal to or lower than the first threshold after the engine stops, and a threshold setting unit that sets the first threshold smaller as a deceleration becomes lower.Type: ApplicationFiled: November 16, 2012Publication date: November 13, 2014Applicant: NISSAN MOTOR CO., LTD.Inventors: Kouichi Mori, Motoyuki Hattori
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Publication number: 20140336907Abstract: A vehicle engine automatic control device has a brake pedal operation amount detecting unit that detects an amount of brake pedal operation by a driver, a negative pressure-based force multiplying unit that multiplies a force, with which a brake is operated, using an intake negative pressure of an engine, a negative pressure detecting unit that detects a negative pressure of the negative pressure-based force multiplying unit, and a coast stop control unit that stops the engine when the amount of brake pedal operation that is detected is equal to or greater than a first operation amount threshold during coast drive, and re-starts the engine when the negative pressure that is detected falls below a first negative pressure threshold after the engine stops.Type: ApplicationFiled: November 16, 2012Publication date: November 13, 2014Inventors: Kouichi Mori, Motoyuki Hattori
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Publication number: 20140309912Abstract: An automatic engine-stop control device for a vehicle has a coast stop controlling section that stops an engine during a running of the vehicle when a predetermined condition is satisfied, a deceleration detecting section that detects a deceleration level of the vehicle, and an engine-stop time limiting section that limits a time length for which the coast stop controlling section keeps the engine in a stopped state if the deceleration level is smaller than or equal to a predetermined value.Type: ApplicationFiled: October 16, 2012Publication date: October 16, 2014Applicant: NISSAN MOTOR CO., LTD.Inventors: Masahiro Hirano, Kouichi Mori
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Publication number: 20130245923Abstract: While a vehicle speed is between a first certain vehicle speed and a second certain vehicle speed lower than the first certain vehicle speed, it is determined whether to perform vehicle control in accordance with conditions excluding a condition based on the estimated road surface slope.Type: ApplicationFiled: March 12, 2013Publication date: September 19, 2013Applicant: NISSAN MOTOR CO., LTD.Inventors: Takashi Matsuda, Shouta Hamane, Motoyuki Hattori, Kouichi Mori
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Patent number: 8122705Abstract: An internal combustion engine of a vehicle is provided with an exhaust cleaning apparatus and control method. In the exhaust cleaning apparatus and method, exhaust from a combustion chamber is conducted to a main catalytic converter disposed in a main exhaust channel. A fuel cutting operation is performed upon determining a deceleration state in the vehicle and establishment of a condition for stopping fuel supply to the engine. Then, a main-channel blocking device closes the main exhaust channel so that the exhaust flows through a bypass catalytic converter disposed in a bypass exhaust channel upstream from the main catalytic converter and then merges again with the main exhaust channel upstream from the main catalytic converter after the fuel cutting operation and upon determining one of either an elapsed of a prescribed period of time, or an air-fuel ratio of the exhaust reaching a stable state.Type: GrantFiled: October 26, 2007Date of Patent: February 28, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Hajime Yasuda, Kouichi Mori, Daisuke Yoshioka
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Patent number: 7614221Abstract: An exhaust system for an internal combustion engine includes a catalytic device within an exhaust path of the engine, wherein the catalytic device includes a housing with a catalyst carrier. A length of the catalyst carrier along a longitudinal axis, measured along a downstream flow direction of exhaust gas within the exhaust path, is substantially the same or a shorter than the upstream distance traveled by a reverse flow of exhaust gas during an exhaust gas pulsation within the housing. With this type of configuration, due to reciprocating movements of the exhaust gas caused by the pulsations, the same exhaust gas passes through the catalyst carrier multiple times. Thus, an increased number of heat exchanges take place within the catalyst carrier, which rapidly increases the catalyst temperature after a cold engine start.Type: GrantFiled: February 9, 2006Date of Patent: November 10, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Kouichi Mori, Takao Inoue, Sunki I, Shunichi Mitsuishi
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Patent number: 7594391Abstract: An exhaust system for an internal-combustion engine comprises an exhaust bypass in parallel with an upstream portion of a main exhaust path having a main catalytic converter in a downstream portion thereof; an exhaust bypass catalytic converter provided in the exhaust bypass; and a flow path switching valve for blocking the main exhaust path at the upstream portion thereof. The exhaust system includes an ignition timing adjustment mechanism for adjusting ignition timing to delay sparking when the flow path switching valve is switched from the closed condition to the open condition thereof. A control method for the exhaust system is also disclosed.Type: GrantFiled: April 20, 2006Date of Patent: September 29, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Sunki I, Takao Inoue, Kouichi Mori
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Patent number: 7455044Abstract: An intake control valve of an intake device of an internal combustion engine comprises a given portion defined by an air intake passage that leads to a combustion chamber of the engine through an intake valve; a pivot shaft passing through the given portion; and a valve plate secured to the pivot shaft to pivot therewith within the given portion. The valve plate is pivotal between a close position to close the air intake passage and an open position to open the air intake passage. When the valve plate assumes the close position, the interior of the air intake passage downstream the valve plate is formed with mutually isolated first and second air flows that are separated and oriented to enhance a flow of air/fuel mixture in the combustion chamber.Type: GrantFiled: April 3, 2007Date of Patent: November 25, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Hiroshi Isaji, Kouichi Mori, Shunichi Mitsuishi, Satoshi Nishii, Kanjo Arimatsu
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Patent number: 7441400Abstract: An exhaust system for an internal combustion engine is disclosed. The exhaust system includes at least one main exhaust path connected to at least one cylinder, an exhaust recirculation path that is branched out from the main exhaust path so that part of exhaust gas is recirculated to an inlet system, a bypass that is branched out from the exhaust recirculation path in which the bypass has a higher path resistance than that of the exhaust recirculation path and a bypass catalytic converter that is provided in the bypass.Type: GrantFiled: April 7, 2006Date of Patent: October 28, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Takao Inoue, Kouichi Mori, Sunki I
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Patent number: 7425312Abstract: A hydrocarbon trapping layer (25) is formed by coating a hydrocarbon trapping material onto a carrier (21A). A number of exhaust gas passages (34) are formed in the carrier (21A) and a plurality of slits (22) are formed on the carrier (21A) to cross the passages (24) in a transverse orientation. The slits (22) delay temperature increases in the downstream hydrocarbon trapping layer (25) and delay the release of trapped hydrocarbons therefrom. This is due to blocking the transmission of heat to the downstream hydrocarbon trapping layer (25) from the upstream hydrocarbon trapping layer (25). The slits (22) further produce a turbulent flow in the flow of exhaust gas and promote diffusion of exhaust gas over the entire surface of the carrier (21A).Type: GrantFiled: March 11, 2003Date of Patent: September 16, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Masaaki Ashida, Kouichi Mori, Shunichi Mitsuishi, Kimiyoshi Nishizawa, Yoshinao Ugomori