Patents by Inventor Nobusuke NAGAOKA

Nobusuke NAGAOKA 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: 11214117
    Abstract: A temperature control system to be installed in an electric vehicle includes a water circuit, a coolant circuit, a radiator, a heat exchanger, a water pump, and a controller. The water circuit circulates cooling water to cool an electric device. The coolant circuit circulates a coolant to control a temperature of a cabin or battery of the electric vehicle. The radiator is disposed in the water circuit. The heat exchanger is disposed in the coolant circuit and receives heat released from the radiator through cooling air delivered from the radiator. The water pump regulates a flow rate of the cooling water circulating in the water circuit. The controller increases the number of rotations of the water pump to a greater value in a condition where an increase in temperature of the cabin or the battery is requested than in a normal condition where the increase in temperature is not requested.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: January 4, 2022
    Assignee: SUBARU CORPORATION
    Inventors: Nobusuke Nagaoka, Yoshihiro Nakazato, Taiki Sakai, Yosuke Kubota
  • Patent number: 11192454
    Abstract: A vehicle control apparatus includes an inverter controller. The inverter controller holds a plurality of control maps for an inverter. The inverter supplies electric power to a drive motor. The drive motor drives a drive wheel of the vehicle. The inverter controller selects any one of the plurality of control maps on a basis of a notification instruction that instructs to notify a driver of information. The inverter controller controls an operation of the inverter on a basis of the control map selected.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: December 7, 2021
    Assignee: SUBARU CORPORATION
    Inventors: Nobusuke Nagaoka, Yoshihiro Nakazato, Yosuke Kubota, Junichi Kato, Taiki Sakai
  • Publication number: 20200198437
    Abstract: A temperature control system to be installed in an electric vehicle includes a water circuit, a coolant circuit, a radiator, a heat exchanger, a water pump, and a controller. The water circuit circulates cooling water to cool an electric device. The coolant circuit circulates a coolant to control a temperature of a cabin or battery of the electric vehicle. The radiator is disposed in the water circuit. The heat exchanger is disposed in the coolant circuit and receives heat released from the radiator through cooling air delivered from the radiator. The water pump regulates a flow rate of the cooling water circulating in the water circuit. The controller increases the number of rotations of the water pump to a greater value in a condition where an increase in temperature of the cabin or the battery is requested than in a normal condition where the increase in temperature is not requested.
    Type: Application
    Filed: November 1, 2019
    Publication date: June 25, 2020
    Inventors: Nobusuke NAGAOKA, Yoshihiro NAKAZATO, Taiki SAKAI, Yosuke KUBOTA
  • Publication number: 20200094692
    Abstract: A vehicle control apparatus includes an inverter controller. The inverter controller holds a plurality of control maps for an inverter. The inverter supplies electric power to a drive motor. The drive motor drives a drive wheel of the vehicle. The inverter controller selects any one of the plurality of control maps on a basis of a notification instruction that instructs to notify a driver of information. The inverter controller controls an operation of the inverter on a basis of the control map selected.
    Type: Application
    Filed: July 22, 2019
    Publication date: March 26, 2020
    Inventors: Nobusuke NAGAOKA, Yoshihiro NAKAZATO, Yosuke KUBOTA, Junichi KATO, Taiki SAKAI
  • Publication number: 20160065087
    Abstract: A current detecting circuit includes a current detecting unit and a signal production and transmission unit, and detects a current value through a power element, in response to a pulse width modulation signal inputted from a control circuit. The current detection unit detects the current value through the power element, at the timing when a carrier of the pulse width modulation signal determined based on a signal inputted from the control circuit takes on a minimal value and/or a maximal value. The signal production and transmission unit that produces a detection signal which has a pulse width dependent on the current value detected by the current detection unit, and transmits the detection signal to the control circuit at every cycle of the carrier.
    Type: Application
    Filed: April 7, 2014
    Publication date: March 3, 2016
    Inventor: Nobusuke NAGAOKA