Patents by Inventor Kosuke Abe

Kosuke Abe 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: 20180245686
    Abstract: In a transmission control device for controlling a transmission, a controller determines failure of a SOL corresponding to a hydraulic secondary-pressure actuator. The controller variably controls line command pressure, and in a case where the failure is determined, fixes the line command pressure to a line pressure set value. The controller variably controls primary command pressure, and in a case where the failure is determined, continuously changes a speed ratio of a variator by variably controlling the primary command pressure. The controller variably controls secondary command pressure, and in a case where the failure is determined, fixes the secondary command pressure to a secondary pressure set value.
    Type: Application
    Filed: February 17, 2016
    Publication date: August 30, 2018
    Applicants: JATCO Ltd, Nissan Motor Co., Ltd.
    Inventors: Masahiro HAMANO, Youji ITOU, Kosuke ABE, Haruka OZONO
  • Publication number: 20180244284
    Abstract: An automatic transmission includes an oil temperature detecting unit configured to detect an oil temperature of the hydraulic oil, and a controller configured to perform the control of the speed ratio on a basis of the oil temperature obtained from the oil temperature detecting unit. The controller is configured such that if the controller has failed to obtain the oil temperature from the oil temperature detecting unit, the controller outputs a command to restrict an output from the driving force source, and such that if the controller has obtained the oil temperature from the oil temperature detecting unit again, the controller gradually cancels the command to restrict the output from the driving force source.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 30, 2018
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Norihira AMANO, Youji ITOU, Kosuke ABE
  • Patent number: 10063058
    Abstract: A power converter includes a plurality of converters which are connected in parallel to a DC power supply in which an operating point is changed in accordance with an output current or an output voltage. The plurality of converters include maximum power point tracking units for performing maximum power point tracking calculations of the DC power supply. Results of the maximum power point tracking calculations of the plurality of converters are unified between the plurality of converters and the plurality of converters are controlled based on the unified calculation result.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: August 28, 2018
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Takae Shimada, Fumikazu Takahashi, Kimiaki Taniguchi, Kosuke Abe
  • Publication number: 20180202917
    Abstract: An object of the present invention is to provide a friction coefficient measurement apparatus which measures an angle of relative torsion caused by a friction between a road surface friction measuring rubber attached strip and a road surface and the friction coefficient measurement apparatus which is able to reduce operator taken for work of replacing the road surface friction measuring rubber attached strip with new one.
    Type: Application
    Filed: November 2, 2017
    Publication date: July 19, 2018
    Applicant: NIPPO SANGYO CO., LTD.
    Inventors: Hironari ABE, Kosuke ABE, Noboru ISHIKAWA
  • Patent number: 10006542
    Abstract: A control device for a continuously variable transmission includes a wheel speed difference sensing section configured to sense a wheel speed difference between the driving wheel and the driven wheel from a detection value of the first rotation speed sensor and a detection value of the second rotation speed sensor; and a clamping force increasing section configured to increase a clamping force for sandwiching a belt of the continuously variable transmission by a pulley when the wheel speed difference becomes equal to or greater than a first predetermined value, relative to a case where the wheel speed difference is smaller than the first predetermined value.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 26, 2018
    Assignees: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Kosuke Abe, Tomoyuki Suwabe, Shin Tsukamoto
  • Publication number: 20180119813
    Abstract: CVT controller has rotation speed sensors detecting driving and driven wheel rotation speed; driving and driven wheel speed difference detection unit detecting wheel speed difference ?vfr; and bad road judgment unit judging that road is bad road when ?vfr is first value ?vfr_br or greater. CVT controller further has first belt clamping force increase unit increasing belt clamping force in case where road is judged to be bad road, as compared with case where road is not judged to be bad road; vibration detection unit detecting vehicle speed vibration fvsp; and second belt clamping force increase unit increasing belt clamping force when ?vfr is second value ?vfr_psec or greater or when fvsp is third value fvsp_psec or greater in case where road is not judged to be bad road, as compared with case where ?vfr is less than ?vfr_psec and case where fvsp is less than fvsp_psec.
    Type: Application
    Filed: February 3, 2016
    Publication date: May 3, 2018
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Kosuke ABE, Shin TSUKAMOTO, Seiichiro TAKAHASHI, Hiroyasu TANAKA
  • Publication number: 20180080548
    Abstract: In a transmission control device for controlling a transmission, a controller determines failure of a specific section. The controller variably controls line command pressure and secondary command pressure, and in a case where the failure is determined, fixes the line command pressure to a line pressure set value and the secondary command pressure to a secondary pressure set value. In a case where the failure is determined, the controller further starts a change in the secondary command pressure after start of a change in the line command pressure, and controls the secondary command pressure in such a manner that the secondary command pressure takes a first predetermined time to have the secondary pressure set value.
    Type: Application
    Filed: February 17, 2016
    Publication date: March 22, 2018
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Haruka OZONO, Youji ITOU, Kosuke ABE
  • Publication number: 20180080547
    Abstract: In a transmission control device for controlling a transmission, a controller determines failure of a SOL corresponding to a hydraulic primary-pressure actuator. The controller variably controls line command pressure, and in a case where the failure is determined, continuously changes a speed ratio of a variator by variably controlling the line command pressure. The controller variably controls primary command pressure, and in a case where the failure is determined, fixes the primary command pressure to a primary pressure set value. The controller variably controls secondary command pressure, and in a case where the failure is determined, fixes the secondary command pressure to a secondary pressure set value.
    Type: Application
    Filed: February 17, 2016
    Publication date: March 22, 2018
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Masahiro HAMANO, Youji ITOU, Kosuke ABE, Haruka OZONO
  • Publication number: 20170279279
    Abstract: A power converter includes a plurality of converters which are connected in parallel to a DC power supply in which an operating point is changed in accordance with an output current or an output voltage. The plurality of converters include maximum power point tracking units for performing maximum power point tracking calculations of the DC power supply. Results of the maximum power point tracking calculations of the plurality of converters are unified between the plurality of converters and the plurality of converters are controlled based on the unified calculation result.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 28, 2017
    Inventors: Takae SHIMADA, Fumikazu TAKAHASHI, Kimiaki TANIGUCHI, Kosuke ABE
  • Publication number: 20170219096
    Abstract: A control device for a continuously variable transmission includes a wheel speed difference sensing section configured to sense a wheel speed difference between the driving wheel and the driven wheel from a detection value of the first rotation speed sensor and a detection value of the second rotation speed sensor; and a clamping force increasing section configured to increase a clamping force for sandwiching a belt of the continuously variable transmission by a pulley when the wheel speed difference becomes equal to or greater than a first predetermined value, relative to a case where the wheel speed difference is smaller than the first predetermined value.
    Type: Application
    Filed: June 24, 2015
    Publication date: August 3, 2017
    Applicants: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Kosuke ABE, Tomoyuki SUWABE, Shin TSUKAMOTO
  • Publication number: 20170155325
    Abstract: A resonant power supply includes a full bridge circuit having a first switching leg and a second switching leg and a control unit that controls operations of a first upper arm switching device and a first lower arm switching device constituting the first switching leg, and a second upper arm switching device and a second lower arm switching device constituting the second switching leg and feeds power to a load from a DC power supply via the full bridge circuit. The control unit controls the full bridge circuit so as to have a phase difference between a turn-off of the first upper arm switching device and the turn-off of the second lower arm switching device, and increases the phase difference in accordance with increase of a switching frequency of the full bridge circuit.
    Type: Application
    Filed: November 9, 2016
    Publication date: June 1, 2017
    Inventors: Takae SHIMADA, Yuki KAWAGUCHI, Fumikazu TAKAHASHI, Kimiaki TANIGUCHI, Kosuke ABE
  • Publication number: 20160363218
    Abstract: A control device for a continuously variable transmission of a vehicle includes: a shift control section being configured to perform a rough road corresponding control to increase the hydraulic pressure supplied to the secondary pulley to a value larger than the hydraulic pressure at a smooth road judgment at which the smooth road is judged, at a rough road judgment at which the rough road is judged, and thereby to increase the clamping force of the secondary pulley with respect to the circular belt member; and a rotation speed control section being configured to control the transmission gear ratio at the rough road judgment so that a rotation speed of the primary pulley becomes equal to or greater than a lower limit rotation speed which is previously set.
    Type: Application
    Filed: February 17, 2015
    Publication date: December 15, 2016
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Kiyofumi SASAKI, Youji ITOU, Kosuke ABE
  • Publication number: 20160363219
    Abstract: A control device for a continuously variable transmission of a vehicle includes a shift control section being configured to perform a rough road corresponding control to increase the hydraulic pressure to a value larger than the hydraulic pressure at a smooth road judgment at which the smooth road is judged, at a rough road judgment at which the rough road is judged, and when a line-pressure-up control condition is satisfied at the rough road judgment, the line pressure control section being configured to increase the line pressure to be greater than the line pressure when the line-pressure-up control condition is not satisfied.
    Type: Application
    Filed: February 17, 2015
    Publication date: December 15, 2016
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Kiyofumi SASAKI, Youji ITOU, Kosuke ABE
  • Patent number: 9515557
    Abstract: In a step-up step-down converter device, a diode is connected in parallel to a switch connecting a positive pole side and a negative pole side for stepping up and stepping down an input voltage, a diode is connected in parallel to a switch in a positive pole side of a closed circuit constructed between an input direct voltage and an output side load, and a control circuit detecting an output voltage generates 1st Phase PWM and 2nd Phase PWM obtained by logically adding and multiplying two difference values having phase difference in comparison with a triangle waveform signal which is 180 degrees different in phase from an error signal based on a difference value between the output voltage and a target reference voltage, and alternately turns on and off switches respectively by using 1st Phase PWM or 2nd Phase PWM at the step-down or step-down operation time.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 6, 2016
    Assignee: HITACHI INFORMATION & TELECOMMUNICATION ENG., LTD.
    Inventors: Kosuke Abe, Fumikazu Takahashi
  • Publication number: 20150263608
    Abstract: In a step-up step-down converter device, a diode is connected in parallel to a switch connecting a positive pole side and a negative pole side for stepping up and stepping down an input voltage, a diode is connected in parallel to a switch in a positive pole side of a closed circuit constructed between an input direct voltage and an output side load, and a control circuit detecting an output voltage generates 1st Phase PWM and 2nd Phase PWM obtained by logically adding and multiplying tow difference values having phase difference in comparison with a triangle waveform signal which is 180 degrees different in phase from an error signal based on a difference value between the output voltage and a target reference voltage, and alternately turns on and off switches respectively by using 1st Phase PWM or 2nd Phase PWM at the step-down or step-down operation time.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 17, 2015
    Inventors: KOSUKE ABE, Fumikazu Takahashi
  • Publication number: 20110227546
    Abstract: To eliminate the problem that a magnetic deflection is caused in a transformer even when a coupled inductor converter is in a stationary operation state, provided is a DC-DC converter including a first series circuit portion formed by a first switching transistor, a first capacitor, a first inductor, and a second capacitor which are connected to a DC power in series in this order, and a second series circuit portion formed by a second switching transistor and a second inductor which are connected in series in this order, the second series circuit portion is connected in parallel to the first capacitor and the first inductor, and the first inductor and the second inductor constitute a coupled inductor having a plurality of windings and a common magnetic core.
    Type: Application
    Filed: October 28, 2009
    Publication date: September 22, 2011
    Applicants: OITA University, Hitachi Computer Peripherals Co., Ltd.
    Inventors: Kimihiro Nishijima, Kosuke Abe
  • Patent number: 7569145
    Abstract: There is provided a porous hollow fiber of vinylidene fluoride resin which has a water permeation rate that is large per fiber and little dependent on the length, has a large treatment capacity per volume of a filtering module, and is therefore suitable as a microfilter element. That is, a porous hollow fiber, comprising a vinylidene fluoride resin having a weight-average molecular weight of at least 3×105, having a water permeation rate F (m3/m2·day) measured at a pressure difference of 100 kPa and at a water temperature of 25° C. in a range of test length L=0.2-0.8 (m) and expressed in a linear relationship with the test length L of: F=C·L+F0 (formula 1) and satisfying requirements (a)-(d) shown below: (a) a average slope C (/day) of: ?20?C?0, (b) an intercept (basic permeability) F0 (m3/m2·day) of: F0?30, (c) a relation between F0 (m3/m2·day) and an average pore diameter P (?m) according to half-dry method of F0/P?300, and (d) an outer diameter of at most 3 mm.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: August 4, 2009
    Assignee: Kureha Corporation
    Inventors: Yasuhiro Tada, Takeo Takahashi, Masayuki Hino, Toshiya Mizuno, Kosuke Abe
  • Publication number: 20080156722
    Abstract: A hollow-fiber porous membrane comprising a hollow fiber-form porous membrane of vinylidene fluoride resin and having an average pore size Pm of 0.05-0.20 ?m, a maximum pore size Pmax giving a ratio Pmax/Pm of at most 2.0 between the maximum pore size Pmax and the average pore size Pm and a standard deviation of pore size distribution of at most 0.20 ?m based on a pore size distribution according to the half dry/bubble point method (ASTM•F316 and ASTM•E1294) is provided, as a hollow-fiber porous membrane of vinylidene fluoride resin having minute pores with a size (average pore diameter) and a further uniform pore size distribution suitable for water (filtration) treatment.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 3, 2008
    Inventors: Kenichi Suzuki, Yasuhiro Tada, Takeo Takahashi, Masayuki Hino, Kosuke Abe, Toshiya Mizuno
  • Publication number: 20070039872
    Abstract: There is provided a porous hollow fiber of vinylidene fluoride resin which has a water permeation rate that is large per fiber and little dependent on the length, has a large treatment capacity per volume of a filtering module, and is therefore suitable as a microfilter element. That is, a porous hollow fiber, comprising a vinylidene fluoride resin having a weight-average molecular weight of at least 3×105, having a water permeation rate F (m3/m2·day) measured at a pressure difference of 100 kPa and at a water temperature of 25° C. in a range of test length L=0.2-0.8(m) and expressed in a linear relationship with the test length L of: F=C·L+F0 (formula 1) and satisfying requirements (a)-(d) shown below: (a) a average slope C (/day) of: ?20?C?0, (b) an intercept (basic permeability) F0 (m3/m2·day) of: F0?30, (c) a relation between F0 (m3/m2·day) and an average pore diameter P (?m) according to half-dry method of F0/P?300, and (d) an outer diameter of at most 3 mm.
    Type: Application
    Filed: September 24, 2004
    Publication date: February 22, 2007
    Inventors: Yasuhro Tada, Takeo Takahashi, Masayuki Hino, Toshiya Mizuno, Kosuke Abe
  • Patent number: 7075778
    Abstract: A hybrid gas-insulated switchgear constitutes an electrical circuit for a single-line diagram unit by arranging one first standardized module and two second standardized modules in a single row such that the central axes of tanks are generally aligned and electrically connecting them to each other. In the standardized modules, a circuit breaker and disconnecting switches are housed inside the tanks such that the disconnecting switches are positioned at first and second ends of the circuit breaker so as to line up generally in a straight line, and grounding switches are connected between the circuit breaker and the disconnecting switches.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: July 11, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Kosuke Abe