Patents by Inventor Motoyuki Hattori
Motoyuki Hattori 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: 9920732Abstract: An engine starting device is provided with a battery, a starter motor, an inrush current limit circuit and a control unit. The inrush current limit circuit has a resistor and a bypass relay connected in parallel. The inrush current limit circuit is interposed between the battery and the starter motor. The bypass relay has a normally open contact that is configured to be closed at a time of engine startup. The control unit is programmed to include a fault identification unit that identifies a location of fault occurrence in the inrush current limit circuit based on a minimum voltage of the battery existing while the starter motor is determined to be in operation and an amount of decrease in voltage of the battery existing while the normally open contact is determined to be actuated in a closing direction.Type: GrantFiled: February 5, 2013Date of Patent: March 20, 2018Assignee: Nissan Motor Co., Ltd.Inventors: Hiromoto Shimizu, Takayuki Iwasaki, Ryo Sano, Motoyuki Hattori, Yuuichi Hosaka
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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: 9574506Abstract: A current is supplied to a driving relay that drives a bypass relay when restarting an engine after idle reduction, and the current supply to the driving relay is interrupted when the engine is started for the first time based on operation of a driver.Type: GrantFiled: February 5, 2013Date of Patent: February 21, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Motoyuki Hattori, Yuuichi Hosaka, Masaya Furushou, Toshihiko Ootsuka, Hiromoto Shimizu, Ryo Sano
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Patent number: 9488148Abstract: An engine starting device is basically provided with a resistor, a bypass circuit and a switch. The resistor is configured to be disposed in series between a starter motor and a battery. The bypass circuit is disposed in parallel with respect to the resistor. The switch is configured to selectively open and close the bypass circuit, the switch opening the bypass circuit in response to commencement of engine startup, and closing the bypass circuit in response to the battery voltage approaches a maximum value during engine startup.Type: GrantFiled: March 11, 2013Date of Patent: November 8, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Yuuichi Hosaka, Motoyuki Hattori, Masaya Furushou, Toshihiko Ootsuka, Hiromoto Shimizu, Ryo Sano
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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: 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: 20150027405Abstract: A current is supplied to a driving relay that drives a bypass relay when restarting an engine after idle reduction, and the current supply to the driving relay is interrupted when the engine is started for the first time based on operation of a driver.Type: ApplicationFiled: February 5, 2013Publication date: January 29, 2015Applicant: NISSAN MOTOR CO., LTD.Inventors: Motoyuki Hattori, Yuuichi Hosaka, Masaya Furushou, Toshihiko Ootsuka, Hiromot Shimizu, Ryo Sano
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Publication number: 20150007695Abstract: An engine starting device is basically provided with a resistor, a bypass circuit and a switch. The resistor is configured to be disposed in series between a starter motor and a battery. The bypass circuit is disposed in parallel with respect to the resistor. The switch is configured to selectively open and close the bypass circuit, the switch opening the bypass circuit in response to commencement of engine startup, and closing the bypass circuit in response to the battery voltage approaches a maximum value during engine startup.Type: ApplicationFiled: March 11, 2013Publication date: January 8, 2015Applicant: Nissan Motor Co., Ltd.Inventors: Yuuichi Hosaka, Motoyuki Hattori, Masaya Furushou, Toshihiko Ootsuka, Hiromoto Shimizu, Ryo Sano
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Publication number: 20140372013Abstract: An engine starting device is provided with a battery, a starter motor, an inrush current limit circuit and a control unit. The inrush current limit circuit has a resistor and a bypass relay connected in parallel. The inrush current limit circuit is interposed between the battery and the starter motor. The bypass relay has a normally open contact that is configured to be closed at a time of engine startup. The control unit is programmed to include a fault identification unit that identifies a location of fault occurrence in the inrush current limit circuit based on a minimum voltage of the battery existing while the starter motor is determined to be in operation and an amount of decrease in voltage of the battery existing while the normally open contact is determined to be actuated in a closing direction.Type: ApplicationFiled: February 5, 2013Publication date: December 18, 2014Applicant: Nissan Motor Company, Ltd.Inventors: Hiromoto Shimizu, Takayuki Iwasaki, Ryo Sano, Motoyuki Hattori, Yuuichi Hosaka
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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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Patent number: 8899204Abstract: The total length of starter harness 7 for exclusive use for connecting a starter for an engine and plus-side terminal 4a of in-vehicle battery 4 is increased by providing a surplus redundant segment 21 to increase resistance in harness 7 beyond length required for laying the harness in an engine room. Redundant segment 21 is collected in a form of rod by forming a two-fold portion by folding a portion of the single continuous harness 7, and further folding the two-fold portion twice, and fixed through harness holder 23 to bracket 22 of battery tray 25. Without using a resistor receiving limitation of the heat resistance, it is possible to suppress a voltage drop at the time of restart, problematical in a vehicle having an idle-stop function. A required resistance is obtained by increasing the length redundantly, so that a temperature increase of harness 7 is small.Type: GrantFiled: June 29, 2011Date of Patent: December 2, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Motoyuki Hattori, Masaya Furushou, Kimiyoshi Nishizawa, Yoshihiro Nakajima, Atsushi Tadaki
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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: 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: 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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Publication number: 20130112165Abstract: The total length of starter harness 7 for exclusive use for connecting a starter for an engine and plus-side terminal 4a of in-vehicle battery 4 is increased by providing a surplus redundant segment 21 to increase resistance in harness 7 beyond length required for laying the harness in an engine room. Redundant segment 21 is collected in a form of rod by forming a two-fold portion by folding a portion of the single continuous harness 7, and further folding the two-fold portion twice, and fixed through harness holder 23 to bracket 22 of battery tray 25. Without using a resistor receiving limitation of the heat resistance, it is possible to suppress a voltage drop at the time of restart, problematical in a vehicle having an idle-stop function. A required resistance is obtained by increasing the length redundantly, so that a temperature increase of harness 7 is small.Type: ApplicationFiled: June 29, 2011Publication date: May 9, 2013Applicant: Nissan Motor Co., Ltd.Inventors: Motoyuki Hattori, Masaya Furushou, Kimiyoshi Nishizawa, Yoshihiro Nakajima, Atsushi Tadaki
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Patent number: 6938420Abstract: A first compressor (1a) which supercharges intake air is provided in the intake passage (6, 20, 21) of an internal combustion engine (12). The first compressor (1a) is driven by the exhaust gas energy of the engine (12). A second compressor (2a) driven by an electric motor (2b), and a bypass valve (3) which bypasses the second compressor (2a), are provided in the intake passage (7, 20, 21) between the first compressor (1a) and the engine (12). The bypass valve (3) shifts from the open state to the closed state according to the operation of the second compressor (2a). At this time, the bypass valve (3) starts closing at some time after startup of the second compressor (2a) so that the intake air amount of the engine (12) is not deficient.Type: GrantFiled: July 22, 2003Date of Patent: September 6, 2005Assignee: Nissan Motor Co., Ltd.Inventors: Katsuhiko Kawamura, Kenichi Fujimura, Ryou Ikegami, Susumu Kubo, Hideharu Kadooka, Naoki Mishima, Motoyuki Hattori, Satoshi Shimada
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Patent number: 6922995Abstract: In an intake passage (1) of an internal combustion engine (8), a compressor (4) combined with an electric motor/generator (4a) is provided. A bypass valve (6) connecting upstream and downstream portions of the intake passage (1) to bypass the compressor (4) is further provided. When a required intake air flow rate of the engine (8) is smaller than a threshold value, the engine (8) operates by natural aspiration of intake air and the electric motor/generator (4a) generate electric power by using rotational energy of the compressor (4) which rotates due to the flow of intake air. By increasing the opening of the bypass valve (6) as the required intake air flow rate diverges from the discharge flow rate of the compressor (4) the intake air flow rate is accurately controlled while satisfying the power generation requirement.Type: GrantFiled: February 19, 2004Date of Patent: August 2, 2005Assignee: Nissan Motor Co., Ltd.Inventors: Katsuhiko Kawamura, Kenichi Fujimura, Hideharu Kadooka, Susumu Kubo, Motoyuki Hattori, Naoki Mishima
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Publication number: 20040194466Abstract: A first compressor (1a) which supercharges intake air is provided in the intake passage (6, 20, 21) of an internal combustion engine (12). The first compressor (1a) is driven by the exhaust gas energy of the engine (12). A second compressor (2a) driven by an electric motor (2b), and a bypass valve (3) which bypasses the second compressor (2a), are provided in the intake passage (7, 20, 21) between the first compressor (1a) and the engine (12). The bypass valve (3) shifts from the open state to the closed state according to the operation of the second compressor (2a). At this time, the bypass valve (3) starts closing at some time after startup of the second compressor (2a) so that the intake air amount of the engine (12) is not deficient.Type: ApplicationFiled: July 22, 2003Publication date: October 7, 2004Applicant: NISSAN MOTOR CO., LTD.Inventors: Katsuhiko Kawamura, Kenichi Fujimura, Ryou Ikegami, Susumu Kubo, Hideharu Kadooka, Naoki Mishima, Motoyuki Hattori
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Publication number: 20040187852Abstract: In an intake passage (1) of an internal combustion engine (8), a compressor (4) combined with an electric motor/generator (4a) is provided. A bypass valve (6) connecting upstream and downstream portions of the intake passage (1) to bypass the compressor (4) is further provided. When a required intake air flow rate of the engine (8) is smaller than a threshold value, the engine (8) operates by natural aspiration of intake air and the electric motor/generator (4a) generate electric power by using rotational energy of the compressor (4) which rotates due to the flow of intake air. By increasing the opening of the bypass valve (6) as the required intake air flow rate diverges from the discharge flow rate of the compressor (4) the intake air flow rate is accurately controlled while satisfying the power generation requirement.Type: ApplicationFiled: February 19, 2004Publication date: September 30, 2004Applicant: NISSAN MOTOR CO., LTD.Inventors: Katsuhiko Kawamura, Kenichi Fujimura, Hideharu Kadooka, Susumu Kubo, Motoyuki Hattori, Naoki Mishima