Patents by Inventor Kazuyoshi Sakazaki

Kazuyoshi Sakazaki 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).

  • Brake control apparatus and control method thereof
    Patent number: 7708354
    Abstract: The invention provides a brake control apparatus that improves the controllability of a vehicle in the control for restraining slip of the wheels. The brake control apparatus includes: wheel cylinders that apply braking force individually to wheels by supplying a working fluid; retention valves that are provided respectively upstream of the wheel cylinders and that are opened and closed so as to restrain slip of the wheels; a common control valve provided upstream of the retention valves to supply the working fluid to the wheel cylinders; and a control portion that controls the common control valve by different control laws to restrain fluctuations in pressure on a primary side of the retention valves caused by fluctuations in a capacity to which the working fluid from the common control valve is supplied, by opening or closing of the retention valves.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: May 4, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayasu Ohkubo, Yasuji Mizutani, Kazuyoshi Sakazaki
  • BRAKE CONTROL APPARATUS AND CONTROL METHOD THEREOF
    Publication number: 20070114842
    Abstract: The invention provides a brake control apparatus that improves the controllability of a vehicle in the control for restraining slip of the wheels. The brake control apparatus includes: wheel cylinders that apply braking force individually to wheels by supplying a working fluid; retention valves that are provided respectively upstream of the wheel cylinders and that are opened and closed so as to restrain slip of the wheels; a common control valve provided upstream of the retention valves to supply the working fluid to the wheel cylinders; and a control portion that controls the common control valve by different control laws to restrain fluctuations in pressure on a primary side of the retention valves caused by fluctuations in a capacity to which the working fluid from the common control valve is supplied, by opening or closing of the retention valves.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 24, 2007
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayasu Ohkubo, Yasuji Mizutani, Kazuyoshi Sakazaki