Patents by Inventor Satoyoshi Oya

Satoyoshi Oya 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: 12107462
    Abstract: A power supply circuit includes a first and second circuits connected to a first and second phase windings of a rotary electric machine, respectively. The first circuit includes first to fourth arms and a first switch. The midpoints of the first and second arms are connected to respective ends of a first winding unit, the midpoints of the third and fourth arms are connected to respective ends of a second winding unit, and the first switch is connected between the midpoints of the second and third arms. The second circuit includes fifth to eighth arms and a second switch. The midpoints of fifth and sixth arms are connected to respective ends of a third winding unit, the midpoints of seventh and eighth arms are connected to respective ends of a fourth winding unit, and the second switch is connected between the midpoints of the sixth and seventh arm.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: October 1, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yoshihisa Kubota, Shogo Miyazaki, Satoyoshi Oya, Takumi Todoroki
  • Publication number: 20230098598
    Abstract: A power supply circuit includes a first and second circuits connected to a first and second phase windings of a rotary electric machine, respectively. The first circuit includes first to fourth arms and a first switch. The midpoints of the first and second arms are connected to respective ends of a first winding unit, the midpoints of the third and fourth arms are connected to respective ends of a second winding unit, and the first switch is connected between the midpoints of the second and third arms. The second circuit includes fifth to eighth arms and a second switch. The midpoints of fifth and sixth arms are connected to respective ends of a third winding unit, the midpoints of seventh and eighth arms are connected to respective ends of a fourth winding unit, and the second switch is connected between the midpoints of the sixth and seventh arm.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 30, 2023
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yoshihisa KUBOTA, Shogo MIYAZAKI, Satoyoshi OYA, Takumi TODOROKI
  • Patent number: 10981462
    Abstract: To provide a system of low cost and low loss capable of the supply of electric power according to characteristics of each of a plurality of motors from a single battery. A power supply system for a vehicle of the present invention includes: a high-voltage battery; a first inverter which connects with the high-voltage battery; a motor described later which connects with the first inverter; a high-voltage DCDC converter which is connected to the high-voltage battery and steps down the voltage of the high-voltage battery; a second inverter which connects with the high-voltage battery; and a motor described later which connects with the second inverter.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 20, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yasuhisa Kume, Mitsuhiro Takeda, Takahiro Hagimoto, Satoyoshi Oya, Tomoaki Ono, Somei Nakatomi, Katsuya Inoue, Hiroshi Otsuka
  • Patent number: 10556495
    Abstract: A power apparatus includes a drive motor, a motor shaft mechanically connected to a wheel of a vehicle, an engine, a crankshaft mechanically connected to the motor shaft and configured to output torque of the engine, a clutch disposed on a power transmission path between the crankshaft and the motor shaft, a controller configured to start-control the engine with the torque of the drive motor, and a magnetic deceleration mechanism which reduces torque of the drive motor necessary for starting the engine by magnetically reducing the rotational speed of the crankshaft during start control. When starting the engine, the controller excites the magnetic deceleration mechanism in a state where the clutch is released.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: February 11, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Satoyoshi Oya
  • Publication number: 20190359074
    Abstract: To provide a system of low cost and low loss capable of the supply of electric power according to characteristics of each of a plurality of motors from a single battery. A power supply system for a vehicle of the present invention includes: a high-voltage battery; a first inverter which connects with the high-voltage battery; a motor described later which connects with the first inverter; a high-voltage DCDC converter which is connected to the high-voltage battery and steps down the voltage of the high-voltage battery; a second inverter which connects with the high-voltage battery; and a motor described later which connects with the second inverter.
    Type: Application
    Filed: May 22, 2019
    Publication date: November 28, 2019
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yasuhisa KUME, Mitsuhiro TAKEDA, Takahiro HAGIMOTO, Satoyoshi OYA, Tomoaki ONO, Somei NAKATOMI, Katsuya INOUE, Hiroshi OTSUKA
  • Publication number: 20190009664
    Abstract: A power apparatus includes a drive motor, a motor shaft mechanically connected to a wheel of a vehicle, an engine, a crankshaft mechanically connected to the motor shaft and configured to output torque of the engine, a clutch disposed on a power transmission path between the crankshaft and the motor shaft, a controller configured to start-control the engine with the torque of the drive motor, and a magnetic deceleration mechanism which reduces torque of the drive motor necessary for starting the engine by magnetically reducing the rotational speed of the crankshaft during start control. When starting the engine, the controller excites the magnetic deceleration mechanism in a state where the clutch is released.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 10, 2019
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Satoyoshi OYA
  • Patent number: 9593986
    Abstract: In a magnet temperature estimating method, in the event that a rotor of a rotary electric machine is cooled by a cooling oil, a magnet temperature calculator estimates the magnet temperature of magnets provided on the rotor, based on losses of the rotary electric machine including a loss of the rotor and the temperature of the cooling oil.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: March 14, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuta Ito, Satoyoshi Oya
  • Patent number: 9541457
    Abstract: A magnet temperature calculator estimates a magnet temperature of a rotary electric machine using at least parameters related to a transmission that is coupled to the rotary electric machine.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: January 10, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoyoshi Oya, Yuta Ito
  • Publication number: 20140126607
    Abstract: A magnet temperature calculator estimates a magnet temperature of a rotary electric machine using at least parameters related to a transmission that is coupled to the rotary electric machine.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 8, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Satoyoshi Oya, Yuta Ito
  • Publication number: 20140126606
    Abstract: In a magnet temperature estimating method, in the event that a rotor of a rotary electric machine is cooled by a cooling oil, a magnet temperature calculator estimates the magnet temperature of magnets provided on the rotor, based on losses of the rotary electric machine including a loss of the rotor and the temperature of the cooling oil.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 8, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yuta Ito, Satoyoshi Oya
  • Patent number: 8666579
    Abstract: A hybrid vehicle is driven by a power unit which includes: a first rotating machine including a first rotor, a first stator, and a second rotor, wherein the number of magnetic poles generated by an armature row of the first stator and one of the first rotor and the second rotor are connected to a drive shaft; a power engine, wherein an output shaft of the power engine is connected to the other of the first rotor and the second rotor; a second rotating machine; and a capacitor. The hybrid vehicle includes: a state detector that detects a charge state of the capacitor; and a controller that controls the power unit. The controller controls the output of the power engine, based on a remaining capacity of the capacitor when driving the power engine in order to start the hybrid vehicle. Accordingly, it is possible to achieve reduction in the size and cost of the power unit and enhance the driving efficiency of the power unit.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: March 4, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Noriyuki Abe, Kota Kasaoka, Masashi Bando, Satoyoshi Oya
  • Patent number: 8620508
    Abstract: A hybrid vehicle is driven by a power unit which includes: a first rotating machine including a first rotor, a first stator, and a second rotor, wherein the number of magnetic poles generated by an armature row of the first stator and one of the first rotor and the second rotor are connected to a drive shaft; a power engine, wherein an output shaft of the power engine is connected to the other of the first rotor and the second rotor; a second rotating machine; a capacitor; and a transformer that steps up an output voltage of the capacitor.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: December 31, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Noriyuki Abe, Kota Kasaoka, Masashi Bando, Satoyoshi Oya
  • Patent number: 8620507
    Abstract: A hybrid vehicle is driven by a power unit which includes: a first rotating machine including a first rotor, a first stator, and a second rotor, wherein the number of magnetic poles generated by an armature row of the first stator and one of the first rotor and the second rotor are connected to a drive shaft; a power engine, wherein an output shaft of the power engine is connected to the other of the first rotor and the second rotor; a second rotating machine; and a capacitor. A traveling mode of the hybrid vehicle includes an EV traveling mode and an ENG traveling mode, wherein the hybrid vehicle travels with a motive power from at least one of the first rotating machine and the second rotating machine in the EV traveling mode, and the hybrid vehicle travels with a motive power from the power engine in ENG traveling mode.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: December 31, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Noriyuki Abe, Kota Kasaoka, Masashi Bando, Satoyoshi Oya
  • Patent number: 8564146
    Abstract: A power plant that is capable of attaining downsizing and reduction of manufacturing costs and enhancing the degree of freedom in design thereof. In the power plant 1, a first rotating machine 11 includes a first rotor 14 having a predetermined plurality of magnetic poles 14a, a stator 13 that generates a predetermined plurality of armature magnetic poles to thereby generate a rotating magnetic field, and a second rotor 15 having a predetermined plurality of soft magnetic material elements 15a. The ratio between the number of the armature magnetic poles, the number of the magnetic poles, and the number of the soft magnetic material elements is set to 1:m:(1+m)/2 (m?1.0). One of the rotors 14 and 15 is mechanically connected to an output portion 3a of a heat engine 3, and the other of the rotors 14 and 15 and a rotor 23 of a second rotating machine 21 are mechanically connected to driven parts DW and DW.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: October 22, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Kota Kasaoka, Masashi Bando, Noriyuki Abe, Satoyoshi Oya
  • Patent number: 8480522
    Abstract: A power plant which is capable of enhancing the driving efficiency and the power-generating efficiency thereof. A rotating machine includes a first rotor having a magnetic pole row that has each two adjacent magnetic poles, a stator having an armature row that is disposed in a manner opposed to the magnetic pole row, for generating a rotating magnetic field between the armature row and the magnetic pole row by a predetermined plurality of armature magnetic poles, and a second rotor having a soft magnetic material element row that is formed by a plurality of soft magnetic material elements arranged in a manner spaced from each other. The ratio between the number of the armature magnetic poles, the number of the magnetic poles, and the number of the soft magnetic material elements is set to 1:m:(1+m)/2 (m?1.0).
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: July 9, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Noriyuki Abe, Satoyoshi Oya, Kota Kasaoka
  • Patent number: 8430782
    Abstract: A power plant which is capable of reducing the size and costs thereof and attaining high driving efficiency. In the power plant 1, the ratio between the number of first armature magnetic poles that form a first rotating magnetic field generated by a first stator 23 of a first rotating machine 21, the number of first magnetic poles 24a of a first rotor 24, and the number of first soft magnetic material elements 25a of a second rotor 25 disposed between the two 23 and 24 is set to 1:m:(1+m)/2 (m?1.0), and the ratio between the number of second armature magnetic poles that form a second rotating magnetic field generated by a second stator 33 of a second rotating machine 31, the number of second magnetic poles 34a of a third rotor 34, and the number of second soft magnetic material elements 35a of a fourth rotor 35 disposed between the two 33 and 34 is set to 1:n:(1+n)/2 (n?1.0). The two stators 23 and 33 are connected to each other.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: April 30, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Satoyoshi Oya, Kota Kasaoka, Noriyuki Abe
  • Patent number: 8350442
    Abstract: To provide a power plant which makes it possible to make the power plant more compact in size, reduce manufacturing costs thereof, and improve the degree of freedom in design. The power plant 1 comprises an engine 3, and first and second rotating machines 10 and 20, and drives front wheels 4 by motive power from these. The first rotating machine 10 includes first and second rotors 14 and 15, and a stator 16, and is configured such that a ratio between the number of armature magnetic poles generated in the stator 16, the number of magnetic poles of the first rotor 14, and the number of soft magnetic material cores 15a of the second rotor 15 becomes 1:m:(1+m)/2 (m?1.0).
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: January 8, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Satoyoshi Oya, Kota Kasaoka, Noriyuki Abe
  • Patent number: 8294318
    Abstract: An electric motor (M) includes first and second stators (12L, 12R) on the outside forming a rotating magnetic field, an outer rotor (13) disposed inside the first and second stators (12L, 12R) and having first and second induced magnetic poles (38L, 38R), and an inner rotor (14) disposed inside the outer rotor (13) and having first and second permanent magnet (52L, 52R). The phases of the first and second induced magnetic poles (38L, 38R) of the outer rotor (13) are displaced from each other by only half of a predetermined pitch, and the phases of the first and second permanent magnets (52L, 52R) of the inner rotor (14) are displaced from each other by only the predetermined pitch. Accordingly, the first and second stators (12L, 12R) facing the first induced magnetic poles (38L) and the second induced magnetic pole (38R) can be made to have the same phase and polarity, thus simplifying the structures of the first and second stators (12L, 12R).
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: October 23, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masashi Bando, Noriyuki Abe, Shigemitsu Akutsu, Satoyoshi Oya
  • Publication number: 20120202645
    Abstract: A power plant that is capable of attaining downsizing and reduction of manufacturing costs and enhancing the degree of freedom in design thereof. In the power plant 1, a first rotating machine 11 includes a first rotor 14 having a predetermined plurality of magnetic poles 14a, a stator 13 that generates a predetermined plurality of armature magnetic poles to thereby generate a rotating magnetic field, and a second rotor 15 having a predetermined plurality of soft magnetic material elements 15a. The ratio between the number of the armature magnetic poles, the number of the magnetic poles, and the number of the soft magnetic material elements is set to 1:m:(1+m)/2 (m?1.0). One of the rotors 14 and 15 is mechanically connected to an output portion 3a of a heat engine 3, and the other of the rotors 14 and 15 and a rotor 23 of a second rotating machine 21 are mechanically connected to driven parts DW and DW.
    Type: Application
    Filed: July 23, 2010
    Publication date: August 9, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Shigemitsu Akutsu, Kota Kasaoka, Masashi Bando, Noriyuki Abe, Satoyoshi Oya
  • Publication number: 20120203414
    Abstract: A hybrid vehicle is driven by a power unit which includes: a first rotating machine including a first rotor, a first stator, and a second rotor, wherein the number of magnetic poles generated by an armature row of the first stator and one of the first rotor and the second rotor are connected to a drive shaft; a power engine, wherein an output shaft of the power engine is connected to the other of the first rotor and the second rotor; a second rotating machine; and a capacitor. A traveling mode of the hybrid vehicle includes an EV traveling mode and an ENG traveling mode, wherein the hybrid vehicle travels with a motive power from at least one of the first rotating machine and the second rotating machine in the EV traveling mode, and the hybrid vehicle travels with a motive power from the power engine in ENG traveling mode.
    Type: Application
    Filed: July 23, 2010
    Publication date: August 9, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Shigemitsu Akutsu, Noriyuki Abe, Kota Kasaoka, Masashi Bando, Satoyoshi Oya