Patents by Inventor Masafumi Okishima

Masafumi Okishima 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).

  • Patent number: 10597038
    Abstract: A control method for an engine includes determining whether a predetermined fuel supply stop condition has been fulfilled, executing stop time vibration suppression control of, after stop of fuel supply in response to fulfillment of the predetermined fuel supply stop condition, temporarily performing fuel supply to the engine to suppress vehicle vibration, and stopping fuel supply to all cylinders after the execution of the stop time vibration suppression control. The stop time vibration suppression control includes determining whether a first predetermined number of cylinders have undergone a combustion stroke after the stop of the fuel supply, the first predetermined number being according to a engine revolution speed or a reduction ratio from the engine to drive wheels, and in a case where the first predetermined number of cylinders have undergone the combustion stroke, performing fuel supply to a second predetermined number of cylinders.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 24, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masafumi Okishima, Shingo Yamanaka, Ryuji Watanabe, Manabu Okamura, Kenichi Tsubaki
  • Publication number: 20190256100
    Abstract: A control method for an engine includes determining whether a predetermined fuel supply stop condition has been fulfilled, executing stop time vibration suppression control of, after stop of fuel supply in response to fulfillment of the predetermined fuel supply stop condition, temporarily performing fuel supply to the engine to suppress vehicle vibration, and stopping fuel supply to all cylinders after the execution of the stop time vibration suppression control. The stop time vibration suppression control includes determining whether a first predetermined number of cylinders have undergone a combustion stroke after the stop of the fuel supply, the first predetermined number being according to an engine revolution speed or a reduction ratio from the engine to drive wheels, and in a case where the first predetermined number of cylinders have undergone the combustion stroke, performing fuel supply to a second predetermined number of cylinders.
    Type: Application
    Filed: September 16, 2016
    Publication date: August 22, 2019
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Masafumi Okishima, Shingo Yamanaka, Ryuji Watanabe, Manabu Okamura, Kenichi Tsubaki