Patents by Inventor Naoya Fukuzawa

Naoya Fukuzawa 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).

  • Control apparatus for hybrid vehicle, hybrid vehicle, and control method for hybrid vehicle
    Patent number: 8843260
    Abstract: An intermittent operation control is executed, wherein a hybrid vehicle is run with a running drive source while an internal combustion engine is intermittently operated in the intermittent operation control. When the internal combustion engine is restarted after a stop due to the intermittent operation control, a rapid warm-up control is executed in which a catalytic converter is rapidly warmed up by retarding the ignition timing of the internal combustion engine. In addition, when the internal combustion engine is restarted, the internal combustion engine is operated only by port injection until the pressure of fuel for in-cylinder injection reaches a reference set pressure. Subsequently, when the pressure of the fuel for in-cylinder injection reaches the reference set pressure, the in-cylinder injection is started.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: September 23, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Naoya Fukuzawa
  • CONTROL APPARATUS FOR HYBRID VEHICLE, HYBRID VEHICLE, AND CONTROL METHOD FOR HYBRID VEHICLE
    Publication number: 20130151052
    Abstract: An intermittent operation control is executed, wherein a hybrid vehicle is run with a running drive source while an internal combustion engine is intermittently operated in the intermittent operation control. When the internal combustion engine is restarted after a stop due to the intermittent operation control, a rapid warm-up control is executed in which a catalytic converter is rapidly warmed up by retarding the ignition timing of the internal combustion engine. In addition, when the internal combustion engine is restarted, the internal combustion engine is operated only by port injection until the pressure of fuel for in-cylinder injection reaches a reference set pressure. Subsequently, when the pressure of the fuel for in-cylinder injection reaches the reference set pressure, the in-cylinder injection is started.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 13, 2013
    Inventor: Naoya Fukuzawa