Patents by Inventor Youshi Ishii

Youshi Ishii 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).

  • Throttle predictive controller in automatic engine tester
    Patent number: 5195038
    Abstract: Throttle predictive controller in an engine tester includes an operation pattern generator (5); an operational processing unit (4) consisting of a throttle predictive angle calculation part (1), a throttle angle-corresponding to acceleration calculation part (2) and an adder (3); a dynamometer controller (6); a throttle amplifier (9); a throttle actuator (10); a dynamometer (11); and a tachometer (12). The operation pattern generator inputs a set revolution speed signal (n) to the throttle predictive angle calculation part, the throttle angle-corresponding to acceleration calculation part and the throttle amplifier, and inputs a set torque signal (T) to the throttle predictive angle calculation part and the dynamometer controller.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: March 16, 1993
    Assignee: Ono Sokki Co., Ltd.
    Inventors: Hiroyuki Yagi, Youshi Ishii, Takashi Hashizume