Patents by Inventor Asuka TSUNODA

Asuka TSUNODA 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: 10364767
    Abstract: During idle operation of an engine, on satisfaction of a predetermined condition including a condition that a vehicle speed is not higher than a reference value, a hybrid vehicle controls the engine with adjusting a throttle position such that a rotation speed of the engine becomes equal to target idle rotation speed or is in a predetermined rotation speed range including the target idle rotation speed. On non-satisfaction of predetermined condition, the hybrid vehicle controls the engine with setting the throttle position to a fixed value, The reference value is set to provide larger value when the rotation speed of the engine becomes equal to or lower than a predetermined rotation speed that is lower than the target idle rotation speed and is higher than a resonance rotation speed of the vehicle, compared with a value when the rotation speed of the engine is higher than the predetermined rotation speed.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: July 30, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Asuka Tsunoda, Takashi Suzuki, Tomoya Suzuki, Takahiro Nishigaki, Kenya Maruyama
  • Patent number: 10309329
    Abstract: In a hybrid vehicle including: an engine having an exhaust system in which a filter that removes particulate matter is provided; a motor configured to generate a driving force for the hybrid vehicle; a power storage device configured to exchange an electric power with the motor; and an electronic control unit configured to control the engine and the motor. When an accumulation amount of the particulate matter of the filter is equal to or more than a predetermined accumulation amount, the electronic control unit is configured to permit fuel cut of the engine when a temperature of the filter is lower than a predetermined temperature, and the electronic control unit is configured to prohibit the fuel cut of the engine when the temperature of the filter is equal to or higher than the predetermined temperature.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 4, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Asuka Tsunoda, Takashi Suzuki
  • Publication number: 20180112612
    Abstract: During idle operation of an engine, on satisfaction of a predetermined condition including a condition that a vehicle speed is not higher than a reference value, a hybrid vehicle controls the engine with adjusting a throttle position such that a rotation speed of the engine becomes equal to target idle rotation speed or is in a predetermined rotation speed range including the target idle rotation speed. On non-satisfaction of predetermined condition, the hybrid vehicle controls the engine with setting the throttle position to a fixed value, The reference value is set to provide larger value when the rotation speed of the engine becomes equal to or lower than a predetermined rotation speed that is lower than the target idle rotation speed and is higher than a resonance rotation speed of the vehicle, compared with a value when the rotation speed of the engine is higher than the predetermined rotation speed.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 26, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Asuka TSUNODA, Takashi SUZUKI, Tomoya SUZUKI, Takahiro NISHIGAKI, Kenya MARUYAMA
  • Publication number: 20180106206
    Abstract: In a hybrid vehicle including: an engine having an exhaust system in which a filter that removes particulate matter is provided; a motor configured to generate a driving force for the hybrid vehicle; a power storage device configured to exchange an electric power with the motor; and an electronic control unit configured to control the engine and the motor. When an accumulation amount of the particulate matter of the filter is equal to or more than a predetermined accumulation amount, the electronic control unit is configured to permit fuel cut of the engine when a temperature of the filter is lower than a predetermined temperature, and the electronic control unit is configured to prohibit the fuel cut of the engine when the temperature of the filter is equal to or higher than the predetermined temperature.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 19, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Asuka TSUNODA, Takashi SUZUKI