Patents by Inventor Masaya Furushou

Masaya Furushou 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).

  • Publication number: 20210095649
    Abstract: A control device for a motor unit provided in a vehicle is disclosed. The motor unit includes a motor including multiple coils provided side by side around a motor axis; a transmission mechanism transmitting power of the motor to an axle; a housing housing the motor and the transmission mechanism; an electric oil pump delivering oil stored in the housing; and a coil temperature sensor detecting a temperature of the coil. The control device includes a motor controller driving and controlling the motor; and a pump controller driving and controlling the electric oil pump. The pump controller estimates an oil temperature according to an ambient temperature and the temperature of the coil, and determines a start timing of the electric oil pump based on an estimated oil temperature.
    Type: Application
    Filed: September 11, 2020
    Publication date: April 1, 2021
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Masaya Furushou, Yasuhiro SHIRAI
  • 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
  • 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
  • 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: 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: 6814063
    Abstract: Fuel vapor from a fuel tank (4) of an engine (1) is adsorbed by a canister (6) via a first passage (9). The canister (6) comprises an air vent (11) which communicates with the atmosphere. The canister (6) communicates with an intake passage (2) of the engine (1) via a second passage (10) provided with a purge valve (13). When the air vent (11) and purge valve (13) are opened, the adsorbed fuel in the canister (6) is purged to the intake passage (2) due to the intake negative pressure of the engine (1). If the negative pressure of the second passage (10) becomes stronger than a reference negative pressure during purging, the purge valve (13) is throttled to prevent an excessive negative pressure from acting on the fuel tank (4).
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: November 9, 2004
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Akihiro Kawano, Masaya Furushou
  • Patent number: 6729312
    Abstract: A fuel vapor treatment apparatus for an internal combustion engine is configured to improve the purge control performance of a purge control valve. The fuel vapor treatment apparatus includes a purge control valve, an operating condition detector, a purge gas flow rate setting component and a control unit. The control unit outputs a duty value and a drive frequency to the purge control valve to duty control the opening and closing of the purge control valve when prescribed operating conditions are met. The control unit sets a high drive frequency used for duty control of the purge control valve during a low flow rate control of the purge gas and to a low drive frequency during a high flow rate control of the purge gas.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: May 4, 2004
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Masaya Furushou
  • Publication number: 20040007215
    Abstract: Fuel vapor from a fuel tank (4) of an engine (1) is adsorbed by a canister (6) via a first passage (9). The canister (6) comprises an air vent (11) which communicates with the atmosphere. The canister (6) communicates with an intake passage (2) of the engine (1) via a second passage (10) provided with a purge valve (13). When the air vent (11) and purge valve (13) are opened, the adsorbed fuel in the canister (6) is purged to the intake passage (2) due to the intake negative pressure of the engine (1). If the negative pressure of the second passage (10) becomes stronger than a reference negative pressure during purging, the purge valve (13) is throttled to prevent an excessive negative pressure from acting on the fuel tank (4).
    Type: Application
    Filed: June 12, 2003
    Publication date: January 15, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Akihiro Kawano, Masaya Furushou
  • Publication number: 20030154963
    Abstract: A fuel vapor treatment apparatus for an internal combustion engine is configured to improve the purge control performance of a purge control valve. The fuel vapor treatment apparatus includes a purge control valve, an operating condition detector, a purge gas flow rate setting component and a control unit. The control unit outputs a duty value and a drive frequency to the purge control valve to duty control the opening and closing of the purge control valve when prescribed operating conditions are met. The control unit sets a high drive frequency used for duty control of the purge control valve during a low flow rate control of the purge gas and to a low drive frequency during a high flow rate control of the purge gas.
    Type: Application
    Filed: January 15, 2003
    Publication date: August 21, 2003
    Applicant: Nissan Motor Co., Ltd.
    Inventor: Masaya Furushou
  • Patent number: 6354280
    Abstract: An evaporation control apparatus is provided that reliably suppresses the emission of fuel components into the atmosphere. The evaporation control apparatus has a canister 2 and a control valve 20 that are configured as a unit to be disposed within the fuel tank 1 so that the connection path between the canister 2 and the control valve 20 is completely enclosed within the fuel tank 1. Therefore, fuel components are prevented from permeating the hoses and joints connecting the canister 2 and the control valve 20. In the unlikely event that fuel components should permeate the case body 20A of the control valve 20, emission of the fuel components into the atmosphere will be suppressed.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: March 12, 2002
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuji Itakura, Takahiro Yamafuji, Masaya Furushou
  • Patent number: 6176217
    Abstract: With the present invention, the combustion method of an internal combustion engine is switched between homogeneous combustion and stratified combustion according to the operating conditions of the engine, and when purging of the fuel vapor is performed during the homogeneous combustion and purging of the fuel vapor is either reduced or prohibited during the stratified combustion, the combustion method is forcedly switched to the homogeneous combustion by the most suitable cycle during the stratified combustion, so as to perform purging of the fuel vapor. Therefore, the fuel temperature inside the fuel tank is detected, and according to the detected fuel temperature, the forced switching cycle for switching from the stratified combustion to the homogeneous combustion is set variably. Actually, the forced switching cycle is set shorter when the fuel temperature is higher.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: January 23, 2001
    Assignees: Unisia Jecs Corporation, Nissan Motor Co., Ltd.
    Inventors: Shigeo Ohkuma, Masaya Furushou
  • Patent number: 6116221
    Abstract: In an internal combustion engine of gasoline direct injection type, there is arranged a gasoline vapor purging system. The vapor purging system has a vapor purging section which temporarily traps gasoline vapor produced in a fuel supply section of the engine and feeds the gasoline vapor through a vapor purge conduit into an intake section of the engine upon operation of the engine. In the vapor purge conduit, there is installed an electrically actuated valve which controls the flow of the gasoline vapor toward the intake section. The vapor purging system has further a control unit which controls operation of the valve so that a target purging rate of the gasoline vapor toward the intake section is determined based on an amount of gasoline injected to each combustion chamber of the engine through an injector.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: September 12, 2000
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Mikio Matsumoto, Masaya Furushou, Shigeaki Kakizaki, Hiraku Ooba
  • Patent number: 6079397
    Abstract: In a, so-called, lean burn engine having a vaporized fuel processor, a concentration of a vaporized fuel purged into an intake air passage (so-called, a purge concentration) is estimated using a normal type oxygen concentration sensor. Whenever a predetermined interval of time has passed, the engine combustion condition is forcefully and temporarily transferred into a stoichiometric air-fuel mixture ratio combustion condition during which the purge concentration is estimated on the basis of an output signal from the oxygen concentration sensor during an air-fuel mixture ratio feedback control.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: June 27, 2000
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Mikio Matsumoto, Masaya Furushou, Shigeaki Kakizaki, Hiraku Ooba