Patents by Inventor Masahiko Shindo

Masahiko Shindo 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).

  • Steering control method and apparatus
    Patent number: 6302441
    Abstract: A base transmission ratio Gbase is determined according to the vehicle speed and a compensation amount &agr; is determined for each of feed steering case and return steering case during acceleration/deceleration. Based on this, the transmission ratio G of a transmission ratio varying mechanism is set as G=Gbase+&agr;.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: October 16, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Junji Kawamuro, Morihiro Matsuda, Masahiko Shindo, Takahiro Kojo
  • Steering control apparatus for vehicle
    Patent number: 6244373
    Abstract: Target rotational speed of servo motor 31 is set based on steering speed &thgr;hv detected by steering speed sensor and transmission ratio G set according to a running condition, and speed of servo motor is controlled so that rotational speed &thgr;pv of servo motor detected by rotational speed sensor may agree with the target rotational speed.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: June 12, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiro Kojo, Junji Kawamuro, Masahiko Shindo, Morihiro Matsuda
  • Vehicle steering apparatus
    Patent number: 6199654
    Abstract: In a vehicle steering apparatus having a variable gear ratio unit arranged midway along a steering transmission system for connecting a steering wheel and tires to change the transmission ratio, and an ECU for variably controlling the variable gear ratio unit in accordance with the state of a vehicle, the variable gear ratio unit includes a motor controlled by the ECU, and a reducing mechanism which has a transmission ratio for allowing to maintain the steering angle of the steering wheel with respect to an RF reverse input and transmits the rotation of the motor to the output side. Even if a reverse input acts from a tire side during traveling, the relationship between the steering amount of the steering wheel and the turning amount of the tire can be kept unchanged.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: March 13, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiro Kojo, Junji Kawamuro, Morihiro Matsuda, Masahiko Shindo
  • Vehicle steering apparatus
    Patent number: 6164150
    Abstract: A vehicle steering apparatus having a variable gear ratio unit arranged midway along a steering transmission system for connecting a steering wheel and a tire to change a transmission ratio upon driving a motor includes a connecting unit for stopping actuation of the variable gear ratio unit in accordance with an external signal to connect the input side of the variable gear ratio unit which is connected to the steering wheel to the output side of the variable gear ratio unit which is connected to the tire. Even if a reverse input acts from a tire side during traveling, the relationship between the steering amount of the steering wheel and the turning amount of the tire can be kept unchanged.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: December 26, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masahiko Shindo, Morihiro Matsuda, Junji Kawamuro, Takahiro Kojo