Patents by Inventor Isao Ookawa

Isao Ookawa 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).

  • Publication number: 20210109531
    Abstract: A physical quantity of motion of a vehicle in future traveling is specified in time series in a traveling trajectory. A standard trajectory is calculated based on a standard response parameter as a traveling trajectory that does not consider a constraint condition in future traveling. A correction trajectory is calculated based on a correction response parameter different from the standard trajectory as a traveling trajectory having a correction amount for correcting the standard trajectory in time series according to the constraint condition. A target trajectory to which the vehicle follows is calculated as a traveling trajectory in which the correction trajectory is superimposed on the standard trajectory.
    Type: Application
    Filed: October 8, 2020
    Publication date: April 15, 2021
    Inventors: Isao OOKAWA, Kenichiro NONAKA
  • Patent number: 9356548
    Abstract: A vibration damping control apparatus for a vehicle is applied to a vehicle that includes: a generator that is driven by an internal combustion engine to generate electric power; a regulator that controls field current passing through an excitation winding of the generator, so that generated voltage of the generator turns to an externally instructed adjusting voltage; and a battery that charges generated voltage of the generator. The vibration damping control apparatus for a vehicle includes an adjusting voltage setting means for setting the adjusting voltage based on a charge supply power request value required for controlling a residual capacity of the battery and a drive torque request value for the generator required for suppressing vibration of the vehicle.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: May 31, 2016
    Assignee: DENSO CORPORATION
    Inventors: Isao Ookawa, Mamoru Sawada, Takeshi Sada, Toshiki Matsumoto, Katsuyuki Mori, Akihiko Yagyu, Yuuichi Minamiguchi
  • Patent number: 9184686
    Abstract: An ECU in an electric power generation control system obtains a vehicle state containing a battery state and a driving state of a motor vehicle. The ECU calculates charging parameters necessary for maintaining a residual charge of a battery and vibration suppression parameters necessary for suppressing vibration of a vehicle. An exciting current setting section as a function of the ECU determines an exciting current flowing in an excitation winding of an alternator on the basis of the charging parameters and the vibration suppression parameters.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 10, 2015
    Assignee: DENSO CORPORATION
    Inventors: Yuuichi Minamiguchi, Isao Ookawa, Katsuyuki Mori, Akihiko Yagyu
  • Publication number: 20150123624
    Abstract: A vibration damping control apparatus for a vehicle is applied to a vehicle that includes: a generator that is driven by an internal combustion engine to generate electric power; a regulator that controls field current passing through an excitation winding of the generator, so that generated voltage of the generator turns to an externally instructed adjusting voltage; and a battery that charges generated voltage of the generator. The vibration damping control apparatus for a vehicle includes an adjusting voltage setting means for setting the adjusting voltage based on a charge supply power request value required for controlling a residual capacity of the battery and a drive torque request value for the generator required for suppressing vibration of the vehicle.
    Type: Application
    Filed: May 10, 2013
    Publication date: May 7, 2015
    Inventors: Isao Ookawa, Mamoru Sawada, Takeshi Sada, Toshiki Matsumoto, Katsuyuki Mori, Akihiko Yagyu, Yuuichi Minamiguchi
  • Publication number: 20140183878
    Abstract: An ECU in an electric power generation control system obtains a vehicle state containing a battery state and a driving state of a motor vehicle. The ECU calculates charging parameters necessary for maintaining a residual charge of a battery and vibration suppression parameters necessary for suppressing vibration of a vehicle. An exciting current setting section as a function of the ECU determines an exciting current flowing in an excitation winding of an alternator on the basis of the charging parameters and the vibration suppression parameters.
    Type: Application
    Filed: December 20, 2013
    Publication date: July 3, 2014
    Applicant: DENSO CORPORATION
    Inventors: Yuuichi Minamiguchi, Isao Ookawa, Katsuyuki Mori, Akihiko Yagyu