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).

  • Patent number: 10619614
    Abstract: 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: Grant
    Filed: November 16, 2012
    Date of Patent: April 14, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kouichi Mori, Motoyuki Hattori
  • Patent number: 9920732
    Abstract: 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: Grant
    Filed: February 5, 2013
    Date of Patent: March 20, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiromoto Shimizu, Takayuki Iwasaki, Ryo Sano, Motoyuki Hattori, Yuuichi Hosaka
  • Patent number: 9759139
    Abstract: 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: Grant
    Filed: October 23, 2012
    Date of Patent: September 12, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kouichi Mori, Motoyuki Hattori
  • Patent number: 9574506
    Abstract: 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: Grant
    Filed: February 5, 2013
    Date of Patent: February 21, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Motoyuki Hattori, Yuuichi Hosaka, Masaya Furushou, Toshihiko Ootsuka, Hiromoto Shimizu, Ryo Sano
  • Patent number: 9488148
    Abstract: 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: Grant
    Filed: March 11, 2013
    Date of Patent: November 8, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuuichi Hosaka, Motoyuki Hattori, Masaya Furushou, Toshihiko Ootsuka, Hiromoto Shimizu, Ryo Sano
  • Patent number: 9470156
    Abstract: 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: Grant
    Filed: November 16, 2012
    Date of Patent: October 18, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kouichi Mori, Motoyuki Hattori
  • Patent number: 9365110
    Abstract: 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: Grant
    Filed: March 12, 2013
    Date of Patent: June 14, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takashi Matsuda, Shouta Hamane, Motoyuki Hattori, Kouichi Mori
  • Publication number: 20150027405
    Abstract: 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: Application
    Filed: February 5, 2013
    Publication date: January 29, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Motoyuki Hattori, Yuuichi Hosaka, Masaya Furushou, Toshihiko Ootsuka, Hiromot Shimizu, Ryo Sano
  • Publication number: 20150007695
    Abstract: 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: Application
    Filed: March 11, 2013
    Publication date: January 8, 2015
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Yuuichi Hosaka, Motoyuki Hattori, Masaya Furushou, Toshihiko Ootsuka, Hiromoto Shimizu, Ryo Sano
  • Publication number: 20140372013
    Abstract: 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: Application
    Filed: February 5, 2013
    Publication date: December 18, 2014
    Applicant: Nissan Motor Company, Ltd.
    Inventors: Hiromoto Shimizu, Takayuki Iwasaki, Ryo Sano, Motoyuki Hattori, Yuuichi Hosaka
  • Publication number: 20140358406
    Abstract: 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: Application
    Filed: October 23, 2012
    Publication date: December 4, 2014
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kouichi Mori, Motoyuki Hattori
  • Patent number: 8899204
    Abstract: 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: Grant
    Filed: June 29, 2011
    Date of Patent: December 2, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Motoyuki Hattori, Masaya Furushou, Kimiyoshi Nishizawa, Yoshihiro Nakajima, Atsushi Tadaki
  • Publication number: 20140336908
    Abstract: 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: Application
    Filed: November 16, 2012
    Publication date: November 13, 2014
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kouichi Mori, Motoyuki Hattori
  • Publication number: 20140336907
    Abstract: 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: Application
    Filed: November 16, 2012
    Publication date: November 13, 2014
    Inventors: Kouichi Mori, Motoyuki Hattori
  • Publication number: 20130245923
    Abstract: 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: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Takashi Matsuda, Shouta Hamane, Motoyuki Hattori, Kouichi Mori
  • Publication number: 20130112165
    Abstract: 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: Application
    Filed: June 29, 2011
    Publication date: May 9, 2013
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Motoyuki Hattori, Masaya Furushou, Kimiyoshi Nishizawa, Yoshihiro Nakajima, Atsushi Tadaki
  • Patent number: 6938420
    Abstract: 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: Grant
    Filed: July 22, 2003
    Date of Patent: September 6, 2005
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Katsuhiko Kawamura, Kenichi Fujimura, Ryou Ikegami, Susumu Kubo, Hideharu Kadooka, Naoki Mishima, Motoyuki Hattori, Satoshi Shimada
  • Patent number: 6922995
    Abstract: 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: Grant
    Filed: February 19, 2004
    Date of Patent: August 2, 2005
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Katsuhiko Kawamura, Kenichi Fujimura, Hideharu Kadooka, Susumu Kubo, Motoyuki Hattori, Naoki Mishima
  • Publication number: 20040194466
    Abstract: 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: Application
    Filed: July 22, 2003
    Publication date: October 7, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Katsuhiko Kawamura, Kenichi Fujimura, Ryou Ikegami, Susumu Kubo, Hideharu Kadooka, Naoki Mishima, Motoyuki Hattori
  • Publication number: 20040187852
    Abstract: 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: Application
    Filed: February 19, 2004
    Publication date: September 30, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Katsuhiko Kawamura, Kenichi Fujimura, Hideharu Kadooka, Susumu Kubo, Motoyuki Hattori, Naoki Mishima