Patents by Inventor Koichi Fushimi

Koichi Fushimi 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: 20200149631
    Abstract: When hydraulic information is not available for use, a lock mechanism control unit of a transmission's rotating shaft operated by hydraulic pressure sets the shift range to a non-running range and sets a parking lock to an unlocked state if a vehicle is in a running state and rotation speed of a drive unit is equal to or higher than a predetermined value, but sets the shift range to a parking range and sets the parking lock to a locked state if the vehicle is in a non-running state or the rotation speed is lower than the predetermined value.
    Type: Application
    Filed: October 28, 2019
    Publication date: May 14, 2020
    Inventors: Yuya Tachibanada, Kazuma Sasahara, Tetsuya Mochizuki, Koichi Fushimi, Hirotake Omoto, Shunsuke Yoshida
  • Patent number: 10557545
    Abstract: A control apparatus of an automatic transmission, which includes a mechanical engaging mechanism functioning as a brake, includes a determination unit determining, when a selected gear is a lowest forward speed gear, and the mechanism is in a second state, whether to switch the mechanism to the first state, and a switching processing unit switching the mechanism to the first state based on a determination result. In the first state, only rotation of a predetermined rotational element provided in planetary gear mechanisms in a first direction is restricted. In the second state, rotation of the predetermined rotational element in both the first and second direction is restricted. The determination unit determines to switch the mechanism to the first state at least on condition that a driving force is larger than a predetermined driving force.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: February 11, 2020
    Assignee: HONDA MOTOR CO., LTD
    Inventors: Yuya Tachibanada, Yutaka Ishikawa, Tetsuya Mochizuki, Koichi Fushimi, Masaya Tamai, Ryohei Yamagishi
  • Publication number: 20180283538
    Abstract: A control apparatus of an automatic transmission, which includes a mechanical engaging mechanism functioning as a brake, includes a determination unit determining, when a selected gear is a lowest forward speed gear, and the mechanism is in a second state, whether to switch the mechanism to the first state, and a switching processing unit switching the mechanism to the first state based on a determination result. In the first state, only rotation of a predetermined rotational element provided in planetary gear mechanisms in a first direction is restricted. In the second state, rotation of the predetermined rotational element in both the first and second direction is restricted. The determination unit determines to switch the mechanism to the first state at least on condition that a driving force is larger than a predetermined driving force.
    Type: Application
    Filed: March 7, 2018
    Publication date: October 4, 2018
    Inventors: Yuya Tachibanada, Yutaka Ishikawa, Tetsuya Mochizuki, Koichi Fushimi, Masaya Tamai, Ryohei Yamagishi
  • Patent number: 9651137
    Abstract: An opening end of an inboard section includes: an end surface composed of a plane positioned farthest from the center of a differential device in the axial direction and perpendicular to the axial direction; a ledge positioned adjacent to the end surface in the circumferential direction of the opening end and closer to the center than the end surface in the axial direction; and a tapered section in a slope shape formed continuing to the inner diameter side of the ledge at the opening end, slanting toward the inner diameter side of the opening end and approaching the center. Lubricating oil supplied to the opening end of the inboard section flows to the tapered section via the ledge and flows from the tapered section into a spiral groove formed on an inner periphery of the inboard section.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: May 16, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahiro Yoshizawa, Koichi Fushimi, Takeo Furuta, Yuuto Sasaki, Eri Maeda, Shinobu Kurachi, Yuji Koga
  • Publication number: 20150114757
    Abstract: An opening end of an inboard section includes: an end surface composed of a plane positioned farthest from the center of a differential device in the axial direction and perpendicular to the axial direction; a ledge positioned adjacent to the end surface in the circumferential direction of the opening end and closer to the center than the end surface in the axial direction; and a tapered section in a slope shape formed continuing to the inner diameter side of the ledge at the opening end, slanting toward the inner diameter side of the opening end and approaching the center. Lubricating oil supplied to the opening end of the inboard section flows to the tapered section via the ledge and flows from the tapered section into a spiral groove formed on an inner periphery of the inboard section.
    Type: Application
    Filed: March 19, 2013
    Publication date: April 30, 2015
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masahiro Yoshizawa, Koichi Fushimi, Takeo Furuta, Yuuto Sasaki, Eri Maeda, Shinobu Kurachi, Yuji Koga
  • Patent number: 8690720
    Abstract: A hydraulic control device for an automatic transmission capable of adjusting the amount of lubricating oil in accordance with a load on a torque converter is provided. A main regulator valve regulates hydraulic oil from an oil pressure source on the basis of a stator reaction force of the torque converter to generate a line pressure for operating engagement of a frictional engagement element. A line pressure switching section switches the line pressure to a low line pressure in a region in which a higher line pressure is not required in response to a driving state of a vehicle, and switches the line pressure to a high line pressure when a target value of an engagement hydraulic oil pressure exceeds a predetermined pressure. A lubricating regulator valve is provided in a lubricating oil passage connected from the main regulator valve to regulate a hydraulic pressure in the lubricating oil passage to a given pressure in response to a driving state of the vehicle.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: April 8, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hiroshi Takei, Yoshimichi Tsubata, Koichi Fushimi, Kazuaki Watanabe
  • Publication number: 20120103742
    Abstract: A hydraulic control device for an automatic transmission capable of adjusting the amount of lubricating oil in accordance with a load on a torque converter is provided. A main regulator valve regulates hydraulic oil from an oil pressure source on the basis of a stator reaction force of the torque converter to generate a line pressure for operating engagement of a frictional engagement element. A line pressure switching section switches the line pressure to a low line pressure in a region in which a higher line pressure is not required in response to a driving state of a vehicle, and switches the line pressure to a high line pressure when a target value of an engagement hydraulic oil pressure exceeds a predetermined pressure. A lubricating regulator valve is provided in a lubricating oil passage connected from the main regulator valve to regulate a hydraulic pressure in the lubricating oil passage to a given pressure in response to a driving state of the vehicle.
    Type: Application
    Filed: June 18, 2010
    Publication date: May 3, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Hiroshi Takei, Yoshimichi Tsubata, Koichi Fushimi, Kazuaki Watanabe
  • Patent number: 7481053
    Abstract: A hydraulic pressurizer system comprises a drive source, which drives a hybrid vehicle, a mechanical oil pump, which is driven by the drive source, an electrical motor, which is activated by a 12V battery, an electrical oil pump, which is driven by the electrical motor, and a control unit, which activates the electrical motor. The pressurizer further comprises a ratio-change mechanism, which is activated by hydraulic oil supplied by the mechanical oil pump and by the electrical oil pump to establish a speed change ratio, at which the rotational driving force of the drive source is transmitted to wheels with a rotational speed change. The control unit memorizes a characteristic value, which is specified from the temperature of the hydraulic oil and from the rotational speed of the electrical motor, and a threshold value for the rotational speed of the electrical motor, which threshold value corresponds to the characteristic value.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: January 27, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuhiko Kitano, Osahide Miyamoto, Tomohisa Kaneda, Koichi Fushimi, Ryuichi Mori
  • Publication number: 20060120876
    Abstract: A hydraulic pressurizer system 30 comprises a drive source (an engine 2 and a motor generator 4), which drives a hybrid vehicle 1, a mechanical oil pump 20, which is driven by the drive source, an electrical motor 22, which is activated by a 12V battery 24, an electrical oil pump 21, which is driven by the electrical motor 22, and a control unit 15, which activates the electrical motor 22. The pressurizer further comprises a ratio-change mechanism 7, which is activated by hydraulic oil supplied by the mechanical oil pump 20 and by the electrical oil pump 21 to establish a speed change ratio, at which the rotational driving force of the drive source is transmitted to wheels 8 with a rotational speed change.
    Type: Application
    Filed: November 30, 2005
    Publication date: June 8, 2006
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Kazuhiko Kitano, Osahide Miyamoto, Tomohisa Kaneda, Koichi Fushimi, Ryuichi Mori
  • Patent number: 6913558
    Abstract: An engine stop and start control system for securing a normal line pressure in a hydraulic circuit of the transmission. The system has an engine as a power source for driving the vehicle; a transmission; a mechanical oil pump, operated by the power produced by the engine, for supplying oil pressure to the transmission; an automatic engine stopping and starting section for automatically stopping the engine under predetermined stopping conditions and automatically starting the engine under predetermined starting conditions; and an electric oil pump operated when the predetermined stopping conditions are satisfied, so as to supply the oil pressure to the transmission. The automatic engine stopping and starting section has a control section for prohibiting the automatic engine stop when the line pressure in a hydraulic circuit for supplying oil pressure to the transmission is equal to or lower than a predetermined value while the engine is operated.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: July 5, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ryuichi Mori, Kazuhiko Kitano, Koichi Fushimi, Hiroyuki Okajima
  • Patent number: 6736099
    Abstract: A hydraulic engine-starting system for cranking and starting an engine for a vehicle having automatically stopping and starting functions by a hydraulic motor. A hydraulic pressure that operates a hydraulic clutch of a transmission is raised promptly by using a hydraulic motor. The hydraulic motor is driven by a hydraulic pressure supplied thereto through a first oil passage from a hydraulic motor-driving device including an oil pump, an accumulator and a solenoid valve, thereby starting the engine. A transmission is disposed in the middle of a second oil passage for returning an oil discharged from the hydraulic motor to the hydraulic motor-driving device. Thus, the hydraulic pressure in the transmission can be raised simultaneously with the start of the engine to enable the engagement of a hydraulic clutch, thereby starting the vehicle promptly, while avoiding generating a shock from the engagement of the hydraulic clutch.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: May 18, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ryuichi Mori, Junya Tachikawa, Koichi Fushimi
  • Patent number: 6705266
    Abstract: A starter for an internal combustion engine is provided for improving the startability and reducing noise associated with starting. The starter for an internal combustion engine comprises an electric motor, an oil pump driven by the electric motor, an accumulator for accumulating an oil pressure pumped by the oil pump, a hydraulic actuator driven by the oil pressure accumulated in the accumulator, an oil pressure supply control valve for controlling the oil pressure supplied from the accumulator to the hydraulic actuator, a driven gear for rotation integral with a crank shaft of the internal combustion engine, a driving gear connected to the hydraulic actuator, and brought into mesh with the driven gear and driven by the hydraulic actuator when the internal combustion engine is started, an oil pressure sensor for detecting the oil pressure in the accumulator, and an ECU for controlling the electric motor based on the value of the oil pressure in the accumulator detected by the oil pressure sensor.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: March 16, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Junya Tachikawa, Ryuichi Mori, Koichi Fushimi
  • Publication number: 20040029677
    Abstract: An engine stop and start control system for securing a normal line pressure in a hydraulic circuit of the transmission. The system has an engine as a power source for driving the vehicle; a transmission; a mechanical oil pump, operated by the power produced by the engine, for supplying oil pressure to the transmission; an automatic engine stopping and starting section for automatically stopping the engine under predetermined stopping conditions and automatically starting the engine under predetermined starting conditions; and an electric oil pump operated when the predetermined stopping conditions are satisfied, so as to supply the oil pressure to the transmission. The automatic engine stopping and starting section has a control section for prohibiting the automatic engine stop when the line pressure in a hydraulic circuit for supplying oil pressure to the transmission is equal to or lower than a predetermined value while the engine is operated.
    Type: Application
    Filed: August 5, 2003
    Publication date: February 12, 2004
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ryuichi Mori, Kazuhiko Kitano, Koichi Fushimi, Hiroyuki Okajima
  • Patent number: 6615786
    Abstract: There is provided a starter system for an internal combustion engine, which is capable of preventing wear of a brush of an electric motor ascribable to the combined use of the electric motor with a hydraulic actuator and the resulting increase in the rotational resistance due to friction of the brush, as well as capable of using one of the hydraulic actuator and the electric motor without difficulty even when the other is disabled. The hydraulic motor is driven by hydraulic pressure. A rotational shaft of the hydraulic motor is driven for rotation by the hydraulic motor. A rotational shaft of an electric motor extends in parallel with the rotational shaft of the hydraulic motor, and is driven for rotation by the electric motor. A ring gear rotates in unison with the crankshaft. A pinion gear is brought into meshing engagement with the ring gear, for starting the engine. An output shaft is connected to the pinion gear.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: September 9, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ryuichi Mori, Junya Tachikawa, Koichi Fushimi
  • Publication number: 20030000492
    Abstract: A hydraulic engine-starting system for cranking and starting an engine for a vehicle having automatically stopping and starting functions by a hydraulic motor. A hydraulic pressure that operates a hydraulic clutch of a transmission is raised promptly by using a hydraulic motor. The hydraulic motor is driven by a hydraulic pressure supplied thereto through a first oil passage from a hydraulic motor-driving device including an oil pump, an accumulator and a solenoid valve, thereby starting the engine. A transmission is disposed in the middle of a second oil passage for returning an oil discharged from the hydraulic motor to the hydraulic motor-driving device. Thus, the hydraulic pressure in the transmission can be raised simultaneously with the start of the engine to enable the engagement of a hydraulic clutch, thereby starting the vehicle promptly, while avoiding generating a shock from the engagement of the hydraulic clutch.
    Type: Application
    Filed: May 9, 2002
    Publication date: January 2, 2003
    Inventors: Ryuichi Mori, Junya Tachikawa, Koichi Fushimi
  • Publication number: 20020166530
    Abstract: A starter for an internal combustion engine is provided for improving the startability and reducing noise associated with starting. The starter for an internal combustion engine comprises an electric motor, an oil pump driven by the electric motor, an accumulator for accumulating an oil pressure pumped by the oil pump, a hydraulic actuator driven by the oil pressure accumulated in the accumulator, an oil pressure supply control valve for controlling the oil pressure supplied from the accumulator to the hydraulic actuator, a driven gear for rotation integral with a crank shaft of the internal combustion engine, a driving gear connected to the hydraulic actuator, and brought into mesh with the driven gear and driven by the hydraulic actuator when the internal combustion engine is started, an oil pressure sensor for detecting the oil pressure in the accumulator, and an ECU for controlling the electric motor based on the value of the oil pressure in the accumulator detected by the oil pressure sensor.
    Type: Application
    Filed: April 5, 2002
    Publication date: November 14, 2002
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Junya Tachikawa, Ryuichi Mori, Koichi Fushimi
  • Publication number: 20020166532
    Abstract: There is provided a starter system for an internal combustion engine, which is capable of preventing wear of a brush of an electric motor ascribable to the combined use of the electric motor with a hydraulic actuator and the resulting increase in the rotational resistance due to friction of the brush, as well as capable of using one of the hydraulic actuator and the electric motor without difficulty even when the other is disabled. The hydraulic motor is driven by hydraulic pressure. A rotational shaft of the hydraulic motor is driven for rotation by the hydraulic motor. A rotational shaft of an electric motor extends in parallel with the rotational shaft of the hydraulic motor, and is driven for rotation by the electric motor. A ring gear rotates in unison with the crankshaft. A pinion gear is brought into meshing engagement with the ring gear, for starting the engine. An output shaft is connected to the pinion gear.
    Type: Application
    Filed: April 17, 2002
    Publication date: November 14, 2002
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Ryuichi Mori, Junya Tachikawa, Koichi Fushimi
  • Patent number: 6460500
    Abstract: A start control system for an internal combustion engine which is capable of automatically restarting the engine while ensuring excellent startability and fuel economy of the engine, and permits reduction of the size of the system, to reduce the weight and manufacturing costs of the system. An electric motor drives an oil pump. An accumulator accumulates oil pressure delivered from the oil lamp. A hydraulic motor is connected to the accumulator via oil passage and driven by the oil pressure accumulated in the accumulator, for starting the engine. An electromagnetic valve is arranged across the oil passage, for controlling supply of oil pressure to the hydraulic motor. An ECU controls operation of the oil pressure supply control valve to thereby cause the hydraulic motor to start the engine.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: October 8, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kazuo Ooyama, Koichi Fushimi
  • Patent number: 6442934
    Abstract: The present invention provides a hydraulic controller for a variable capacity hydraulic transmission. This hydraulic controller reduces the load of the engine to improve fuel efficiency while maintaining a hydraulic pressure which is necessary for the control of the skew angles of the swash plates of the variable capacity type hydraulic pump and hydraulic motor that are incorporated in the transmission. The hydraulic controller adjusts the hydraulic pressure supplied to the servo cylinders 92 and 96 which are to tilt the pump swash plate 32 and the motor swash plate 38, to a minimum necessary pressure on the basis of the pressure Ph of the oil passage which is at the higher pressure in the hydraulic closed circuit 26.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: September 3, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Akihito Okuda, Shigeru Morimoto, Koichi Fushimi
  • Patent number: 6039666
    Abstract: A power of an input shaft driven by an engine is divided by a power dividing device and transmitted to first and second output shafts and a hydraulic pump of a hydrostatic continuously variable transmission is driven by the first output shaft, whereas a hydraulic motor is driven by the second output shaft through a mechanical transmission device and also by the hydraulic pump. A main oil pump is provided at the input shaft which rotates at the same speed as an engine speed, and a subsidiary oil pump is provided at the first output shaft which decreases rotational speed thereof to zero with an increase in the engine rotational speed. In a low rotational speed region of the engine, oil is supplied by both the main oil pump and the subsidiary oil pump, whereas in a high rotational speed region of the engine, oil is supplied by only the main oil pump.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: March 21, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Akihito Okuda, Koichi Fushimi, Hiroshi Terayama