Patents by Inventor Youji Hoshino

Youji Hoshino 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).

  • Vehicle steering control system
    Patent number: 7392878
    Abstract: A vehicle steering control system is provided with a steering angle ratio varying mechanism, a variable power assisted steering mechanism and a steering angle ratio controller. The steering angle ratio varying mechanism varies the steering angle ratio, which is the ratio of the turning angle of the front wheels with respect to the steering angle of the steering wheel. The variable power assisted steering mechanism outputs an auxiliary steering force that supplements the steering force of the driver to the steering mechanism for turning the front wheels. The steering angle ratio controller increases the steering angle ratio in a steering angle range in the vicinity of the steering angle center point, and reduces the steering angle ratio in the steering angle range in the vicinity of the rack stopper position, regardless of the steering angular speed of the steering wheel.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: July 1, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hitoshi Ono, Youji Hoshino, Katsuhiro Suda, Yoshiki Yasuno
  • Vehicle steering control system
    Publication number: 20060006020
    Abstract: A vehicle steering control system is provided with a steering angle ratio varying mechanism, a variable power assisted steering mechanism and a steering angle ratio controller. The steering angle ratio varying mechanism varies the steering angle ratio, which is the ratio of the turning angle of the front wheels with respect to the steering angle of the steering wheel. The variable power assisted steering mechanism outputs an auxiliary steering force that supplements the steering force of the driver to the steering mechanism for turning the front wheels. The steering angle ratio controller increases the steering angle ratio in a steering angle range in the vicinity of the steering angle center point, and reduces the steering angle ratio in the steering angle range in the vicinity of the rack stopper position, regardless of the steering angular speed of the steering wheel.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 12, 2006
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Hitoshi Ono, Youji Hoshino, Katsuhiro Suda, Yoshiki Yasuno