Patents by Inventor Yoshikazu Kameda

Yoshikazu Kameda 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: 11465677
    Abstract: A control device for a steer-by-wire type vehicle calculates a target turn angle being represented as a function of a steering angle of a steering wheel, and controls a turning device such that a turn angle of a wheel becomes the target turn angle. A variation range of the steering angle includes: an effective steering range in which the steering angle is an effective maximum steering angle or smaller; and an adjustment steering range in which the steering angle is between the effective maximum steering angle and a predetermined maximum steering angle. The target turn angle calculated according to the effective maximum steering angle is an effective maximum turn angle. The control device variably sets the function according to a road surface condition such that the effective maximum turn angle in a case of a low-? condition is smaller than that in a case of a high-? condition.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: October 11, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junro Yamamoto, Yoshikazu Kameda, Koichi Nishimura
  • Patent number: 11292509
    Abstract: To provide a steering device capable of highly precisely controlling turning angles of steered wheels without changing a layout of members. Provided is a steering device (10A) including: a center arm (26) having one end portion configured to swing in a right-and-left direction with respect to a vehicle body (BD) in synchronism with rotation of a steering shaft (22); a rod member (40A), which is coupled to the one end of the center arm (26), and is configured to move in the right-and-left direction, to thereby change turning angles of steered wheels (WR and WL); and a rod-member drive device (50) configured to linearly move the rod member (40A) in the right-and-left direction through use of a driving force source. The rod member (40A) is supported such that movement of the rod member (40A) in the right-and-left direction of the vehicle body (BD) is allowed, but movement of the rod member (40A) in a front-and-rear direction and an up-and-down direction of the vehicle body (BD) is restricted.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: April 5, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hirotaka Kamano, Yoshikazu Kameda, Mitsuyuki Ouchi, Nobuyuki Kawabata, Nobuaki Miyazaki
  • Publication number: 20210197888
    Abstract: To provide a steering device capable of highly precisely controlling turning angles of steered wheels without changing a layout of members. Provided is a steering device (10A) including: a center arm (26) having one end portion configured to swing in a right-and-left direction with respect to a vehicle body (BD) in synchronism with rotation of a steering shaft (22); a rod member (40A), which is coupled to the one end of the center arm (26), and is configured to move in the right-and-left direction, to thereby change turning angles of steered wheels (WR and WL); and a rod-member drive device (50) configured to linearly move the rod member (40A) in the right-and-left direction through use of a driving force source. The rod member (40A) is supported such that movement of the rod member (40A) in the right-and-left direction of the vehicle body (BD) is allowed, but movement of the rod member (40A) in a front-and-rear direction and an up-and-down direction of the vehicle body (BD) is restricted.
    Type: Application
    Filed: September 9, 2020
    Publication date: July 1, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hirotaka KAMANO, Yoshikazu KAMEDA, Mitsuyuki OUCHI, Nobuyuki KAWABATA, Nobuaki MIYAZAKI
  • Publication number: 20200156701
    Abstract: A control device for a steer-by-wire type vehicle calculates a target turn angle being represented as a function of a steering angle of a steering wheel, and controls a turning device such that a turn angle of a wheel becomes the target turn angle. A variation range of the steering angle includes: an effective steering range in which the steering angle is an effective maximum steering angle or smaller; and an adjustment steering range in which the steering angle is between the effective maximum steering angle and a predetermined maximum steering angle. The target turn angle calculated according to the effective maximum steering angle is an effective maximum turn angle. The control device variably sets the function according to a road surface condition such that the effective maximum turn angle in a case of a low-? condition is smaller than that in a case of a high-? condition.
    Type: Application
    Filed: October 4, 2019
    Publication date: May 21, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junro YAMAMOTO, Yoshikazu KAMEDA, Koichi NISHIMURA
  • Patent number: 10654332
    Abstract: An automatic tilting vehicle comprises left and right front wheels and a rear wheel. A control unit controls a vehicle tilting device so that the tilt angle of the vehicle becomes the target tilt angle. The control device is configured to swingingly vibrates the vehicle in the lateral direction by tilting the vehicle by the vehicle tilting device, to estimate a height of the center of gravity of the vehicle based on a resonance period of swinging vibration of the vehicle, and to correct the target tilt angle such that a perpendicular passing through the estimated center of gravity passes within a range of a triangle formed by connecting grounding points of the left and right front wheels and a grounding point of the rear wheel.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 19, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshikazu Kameda, Takahito Ishino, Hirotaka Kamano, Osamu Yasuike
  • Patent number: 10427746
    Abstract: An automatic tilting vehicle includes left and right wheels rotatably supported by carriers, a vehicle tilting device, and a control unit. The vehicle tilting device includes a swing member swinging about a swing axis, an actuator that swings the swing member, a pair of tie rods pivotally connected to the swing member and the carriers. The control unit controls the actuator so that the tilt angle of the vehicle conforms to a target tilt angle and determines that the vehicle tilting device is abnormal when a relationship between the swing angular velocity of the swing member and the tilt angular velocity of the vehicle deviates from an allowable range.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 1, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hayato Yoshino, Takahito Ishino, Koichi Nishimura, Yoshikazu Kameda, Mitsuyuki Ohuchi, Osamu Yasuike, Hirotaka Kamano
  • Publication number: 20180147908
    Abstract: An automatic tilting vehicle comprises left and right front wheels and a rear wheel. A control unit controls a vehicle tilting device so that the tilt angle of the vehicle becomes the target tilt angle. The control device is configured to swingingly vibrates the vehicle in the lateral direction by tilting the vehicle by the vehicle tilting device, to estimate a height of the center of gravity of the vehicle based on a resonance period of swinging vibration of the vehicle, and to correct the target tilt angle such that a perpendicular passing through the estimated center of gravity passes within a range of a triangle formed by connecting grounding points of the left and right front wheels and a grounding point of the rear wheel.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 31, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshikazu KAMEDA, Takahito ISHINO, Hirotaka KAMANO, Osamu YASUIKE
  • Publication number: 20180134336
    Abstract: An automatic tilting vehicle includes left and right wheels rotatably supported by carriers, a vehicle tilting device, and a control unit. The vehicle tilting device includes a swing member swinging about a swing axis, an actuator that swings the swing member, a pair of tie rods pivotally connected to the swing member and the carriers. The control unit controls the actuator so that the tilt angle of the vehicle conforms to a target tilt angle and determines that the vehicle tilting device is abnormal when a relationship between the swing angular velocity of the swing member and the tilt angular velocity of the vehicle deviates from an allowable range.
    Type: Application
    Filed: November 13, 2017
    Publication date: May 17, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hayato YOSHINO, Takahito ISHINO, Koichi NISHIMURA, Yoshikazu KAMEDA, Mitsuyuki OHUCHI, Osamu YASUIKE, Hirotaka KAMANO
  • Patent number: 9205862
    Abstract: A steering control device includes: an assist controller configured to carry out, by an assist torque, an assist control of alleviating an operation force of a steering wheel; an assist torque computer configured to compute a target assist torque in which an attenuation torque for suppressing a steering angle speed of the steering wheel is superimposed on a reference torque; and an active-passive determination processor configured to compute a steering mode determination value representing a steering mode by a driver with respect to the steering wheel in accordance with a product of the steering angle speed and a steering torque at a time of a steering operation of the steering wheel by the driver as well as a product of the steering angle and a time differential value of the steering torque at the time of the steering operation.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: December 8, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshikazu Kameda
  • Publication number: 20150239495
    Abstract: A steering control device includes: an assist controller configured to carry out, by an assist torque, an assist control of alleviating an operation force of a steering wheel; an assist torque computer configured to compute a target assist torque in which an attenuation torque for suppressing a steering angle speed of the steering wheel is superimposed on a reference torque; and an active-passive determination processor configured to compute a steering mode determination value representing a steering mode by a driver with respect to the steering wheel in accordance with a product of the steering angle speed and a steering torque at a time of a steering operation of the steering wheel by the driver as well as a product of the steering angle and a time differential value of the steering torque at the time of the steering operation.
    Type: Application
    Filed: February 2, 2015
    Publication date: August 27, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshikazu KAMEDA
  • Publication number: 20070227672
    Abstract: After only part of packaging on both lateral ends of the roll of paper is removed, the roll of paper, supported on rolled paper support arms of a rolled paper support apparatus, is set at a predetermined position. A cutter is caused to touch the packaging, and is moved along the width direction of the roll of paper while water is sprayed from the spray nozzle. The packaging and the roll of paper are thus cut in the width direction, and the cut ends of the cut packaging and the roll of paper are prevented from being curled. The upper cut end portions adhere to the outer circumferential surface of the roll of paper, and can be inserted between the table and the clamp bar without failure.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Applicant: KOMORI CORPORATION
    Inventor: Yoshikazu Kameda
  • Publication number: 20070227673
    Abstract: After only part of packaging on both lateral ends of the roll of paper is removed, the roll of paper, supported by rolled paper support arms of a rolled paper support apparatus, is set at a predetermined position. A cutter is caused to touch the packaging, and is moved along the width direction of the roll of paper, thus cutting the packaging and the roll of paper along the width direction. Moreover, air is injected from the air nozzle to cut ends of the packaging and the roll of paper after the cutting begins. The cut ends of the packaging and the roll of paper are opened and are peeled off from the outer circumferential surface, thus allowing the scraper to surely scrape the cut ends.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Applicant: KOMORI CORPORATION
    Inventor: Yoshikazu KAMEDA
  • Patent number: 6408707
    Abstract: A plate spring body (support member) elastically supports an inner gear (second bevel gear) relative to an outer gear (first bevel gear). Ring springs (fluctuation suppressing member) are further provided to reinforce the elastic support, so as to suppress fluctuation of the inner gear along a direction nearly perpendicular to an axis connecting the center of rotation of the outer gear and contact part with a hypoid pinion gear (third bevel gear).
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: June 25, 2002
    Assignees: Toyota Jidosha Kabushiki Kaisha, Nissei Corporation
    Inventors: Yukihide Kimura, Hideo Osanai, Kei Takakuwa, Yoshikazu Kameda, Norihiro Yoshida, Yoshimi Kajitani, Naohito Ino, Katsutoshi Mizuno, Takatomo Kutsuna
  • Patent number: 6170599
    Abstract: A groove member, a reaction force generating member and an elastic member comprise a power steering apparatus where an input shaft adapted to be coupled to a steering wheel engages an output shaft adapted to be connected to wheels to be steered. The groove member has a groove and rotates together with one of the input shaft and the output shaft. The reaction force generating member is supported by the other of the input shaft and the output shaft and is unmovable in the radial direction with respect to one of the input shaft and the output shaft and movable in the axial direction of the input shaft and the output shaft by a distance not exceeding a predetermined value. The elastic member urges one of the groove member and the reaction force generating member toward the other of the groove member and the reaction force generating member.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: January 9, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitugu Kikuti, Yoshikazu Kameda
  • Patent number: 5921164
    Abstract: An adjusting mechanism in a control valve assembly for a power cylinder in a power-assisted steering system of an automotive vehicle for adjusting a steering effort to be applied to a steering wheel placed in a neutral position, wherein the adjusting mechanism is provided with an adjusting-element located outside a housing of the control valve assembly to be operated for adjusting a load applied to the components of the control valve assembly.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: July 13, 1999
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaki Nakaoka, Junro Yamamoto, Yoshikazu Kameda, Mitsugu Kikuchi
  • Patent number: 5803812
    Abstract: A flexible shaft structure comprises: a core wire having flexibility; holding portions provided on the core wire; a first wire wound around the core wire substantially at right angles with respect to an axial line of the core wire; and a second wire which is spirally wound around the first wire and of which both ends are respectively fixed to the holding portions. Accordingly, when an input-side holding portion rotates about a shaft, the rotational torque is transmitted to an output-side holding portion by the second wire. In this case, since the second wire is wound around the first wire wound around the core wire, the winding diameter of the second wire for transmitting rotational torque can be enlarged. As a result, tensile force acting on the second wire becomes smaller and stress acting on the core wire via the first wire or the holding portions accordingly becomes smaller.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: September 8, 1998
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Eisaku Kakiuchi, Tadao Ota, Yoshikazu Kameda, Masahiko Asano