Patents by Inventor Atsushi Ikematsu

Atsushi Ikematsu 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: 9487196
    Abstract: A motion control device for a vehicle, including a braking means for applying a brake torque to a wheel of the vehicle and maintaining a traveling stability of the vehicle by controlling the braking means, the motion control device for the vehicle, includes a steering angular velocity obtaining means for obtaining a steering angular velocity of the vehicle, a yaw angular acceleration obtaining means for obtaining a yaw angular acceleration of the vehicle, and a control means for controlling the brake torque on the basis of the steering angular velocity and the yaw angular acceleration.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: November 8, 2016
    Assignee: Advics Co., Ltd.
    Inventors: Yoshiyuki Yasui, Toshihisa Kato, Toshio Yasutake, Atsushi Ikematsu
  • Patent number: 8892305
    Abstract: A motion control device for a vehicle, including a braking means for applying a brake torque to a wheel of the vehicle and maintaining a traveling stability of the vehicle by controlling the braking means, the motion control device for the vehicle, includes a steering angular velocity obtaining means for obtaining a steering angular velocity of the vehicle, a yaw angular acceleration obtaining means for obtaining a yaw angular acceleration of the vehicle, and a control means for controlling the brake torque on the basis of the steering angular velocity and the yaw angular acceleration.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: November 18, 2014
    Assignee: Advics Co., Ltd.
    Inventors: Yoshiyuki Yasui, Toshihisa Kato, Toshio Yasutake, Atsushi Ikematsu
  • Publication number: 20140136070
    Abstract: A motion control device for a vehicle, including a braking means for applying a brake torque to a wheel of the vehicle and maintaining a traveling stability of the vehicle by controlling the braking means, the motion control device for the vehicle, includes a steering angular velocity obtaining means for obtaining a steering angular velocity of the vehicle, a yaw angular acceleration obtaining means for obtaining a yaw angular acceleration of the vehicle, and a control means for controlling the brake torque on the basis of the steering angular velocity and the yaw angular acceleration.
    Type: Application
    Filed: January 16, 2014
    Publication date: May 15, 2014
    Applicant: ADVICS CO., LTD.
    Inventors: Yoshiyuki Yasui, Toshihisa Kato, Toshio Yasutake, Atsushi Ikematsu
  • Patent number: 8444230
    Abstract: A vehicle motion control apparatus includes hydraulic pressure applying means for applying hydraulic pressure to a wheel cylinder side of any of plural solenoid valves, respectively arranged between a master cylinder and plural wheel cylinders, for the corresponding wheel cylinders even when an operator of the vehicle does not operate a brake operation member, motor controlling means for controlling an output of the electric motor to be reduced in accordance with a condition of a road surface when the hydraulic pressure is applied to the wheel cylinder, and valve controlling means for controlling the operation of the solenoid valve to increase an amount of the brake fluid flown by the operation of the solenoid valve before the output of the electric motor is reduced when the output of the electric motor is controlled to be reduced.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: May 21, 2013
    Assignee: Advics Co., Ltd.
    Inventors: Atsushi Ikematsu, Toshihisa Kato
  • Patent number: 8155855
    Abstract: A vehicle motion control apparatus includes a motion controlling process operating a pump for supplying brake fluid between a pressure difference control valve and a pressure increasing control valve and controlling the pressure difference control valve and the pressure increasing control valve, thereby pressurizing the wheel cylinder of the wheel to be controlled, a control amount adjusting process reducing a control amount of a motor when a frictional coefficient of a road surface is small, a load judging process judging a load condition of the motor when determining to reduce the control amount of the motor, and a pressure difference controlling process reducing the pressure difference when the load of the motor is in a high load condition.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: April 10, 2012
    Assignee: Advics Co., Ltd.
    Inventors: Toshihisa Kato, Atsushi Ikematsu
  • Patent number: 7987037
    Abstract: A vehicle motion control apparatus includes a first means applying a first braking force to an outer wheel, relative to a turning direction, for suppressing oversteer when the vehicle is judged to be skidding in vehicle turning movement, a second means obtaining a state of a driver's steering operation in the vehicle turning movement, a third means applying a second braking force, set to be smaller than the first braking force, to a wheel located at a horizontally opposite side of the outer wheel to which the first braking force is applied, when the state of the driver's steering operation is judged to be in a steering turning back state, in which a steering wheel is turned from a turning direction to a reverse direction of the turning direction, based on the state of the driver's steering operation obtained by the second means.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: July 26, 2011
    Assignee: Advics Co., Ltd.
    Inventors: Toshihisa Kato, Toshio Yasutake, Atsushi Ikematsu
  • Publication number: 20100268420
    Abstract: A motion control device for a vehicle, including a braking means for applying a brake torque to a wheel of the vehicle and maintaining a traveling stability of the vehicle by controlling the braking means, the motion control device for the vehicle, includes a steering angular velocity obtaining means for obtaining a steering angular velocity of the vehicle, a yaw angular acceleration obtaining means for obtaining a yaw angular acceleration of the vehicle, and a control means for controlling the brake torque on the basis of the steering angular velocity and the yaw angular acceleration.
    Type: Application
    Filed: March 24, 2010
    Publication date: October 21, 2010
    Applicant: ADVICS CO., LTD.
    Inventors: Yoshiyuki YASUI, Toshihisa Kato, Toshio Yasutake, Atsushi Ikematsu
  • Publication number: 20080300764
    Abstract: A vehicle motion control apparatus includes a first means applying a first braking force to an outer wheel, relative to a turning direction, for suppressing oversteer when the vehicle is judged to be skidding in vehicle turning movement, a second means obtaining a state of a driver's steering operation in the vehicle turning movement, a third means applying a second braking force, set to be smaller than the first braking force, to a wheel located at a horizontally opposite side of the outer wheel to which the first braking force is applied, when the state of the driver's steering operation is judged to be in a steering turning back state, in which a steering wheel is turned from a turning direction to a reverse direction of the turning direction, based on the state of the driver's steering operation obtained by the second means.
    Type: Application
    Filed: March 11, 2008
    Publication date: December 4, 2008
    Inventors: Toshihisa Kato, Toshio Yasutake, Atsushi Ikematsu
  • Publication number: 20080207391
    Abstract: A vehicle motion control apparatus includes hydraulic pressure applying means for applying hydraulic pressure to a wheel cylinder side of any of plural solenoid valves, respectively arranged between a master cylinder and plural wheel cylinders, for the corresponding wheel cylinders even when an operator of the vehicle does not operate a brake operation member, motor controlling means for controlling an output of the electric motor to be reduced in accordance with a condition of a road surface when the hydraulic pressure is applied to the wheel cylinder, and valve controlling means for controlling the operation of the solenoid valve to increase an amount of the brake fluid flown by the operation of the solenoid valve before the output of the electric motor is reduced when the output of the electric motor is controlled to be reduced.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 28, 2008
    Inventors: Atsushi IKEMATSU, Toshihisa KATO
  • Publication number: 20080201052
    Abstract: A vehicle motion control apparatus includes a motion controlling process operating a pump for supplying brake fluid between a pressure difference control valve and a pressure increasing control valve and controlling the pressure difference control valve and the pressure increasing control valve, thereby pressurizing the wheel cylinder of the wheel to be controlled, a control amount adjusting process reducing a control amount of a motor when a frictional coefficient of a road surface is small, a load judging process judging a load condition of the motor when determining to reduce the control amount of the motor, and a pressure difference controlling process reducing the pressure difference when the load of the motor is in a high load condition.
    Type: Application
    Filed: January 30, 2008
    Publication date: August 21, 2008
    Inventors: Toshihisa KATO, Atsushi Ikematsu
  • Patent number: 7335054
    Abstract: A wiring connector having a connector housing made of an insulator and a plurality of stages of terminal rows provided in the connector housing. The plurality of stages of terminal rows includes a first terminal row and a second terminal row and the first and second terminal rows each comprise a plurality of terminals. The base of the first terminal row is attached to the base of said second terminal row and a new connection terminal formed at a turndown.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: February 26, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshihiro Nakazawa, Koji Kano, Atsushi Ikematsu, Kenichi Tamakoshi, Keishi Takayama
  • Publication number: 20060128185
    Abstract: A wiring connector having a connector housing made of an insulator and a plurality of stages of terminal rows provided in the connector housing. The plurality of stages of terminal rows includes a first terminal row and a second terminal row and the first and second terminal rows each comprise a plurality of terminals. The base of the first terminal row is attached to the base of said second terminal row and a new connection terminal formed at a turndown.
    Type: Application
    Filed: December 8, 2005
    Publication date: June 15, 2006
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yoshihiro Nakazawa, Koji Kano, Atsushi Ikematsu, Kenichi Tamakoshi, Keishi Takayama