Patents by Inventor Masahiko Matsumura

Masahiko Matsumura 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).

  • Cooling device for internal combustion engine
    Patent number: 10428724
    Abstract: A cooling device for an internal combustion engine includes a circulation path, a coolant temperature sensor, a coolant pump, and an electronic control unit. The electronic control unit is configured to execute processing for performing feedback control on power of the coolant pump such that the output of the coolant temperature sensor becomes a target temperature, micelle determination processing for determining whether or not micelles are added to a coolant based on pump work of the coolant pump and the flow rate of the coolant flowing through the circulation path, Toms determination processing for determining whether or not the flow rate of the coolant satisfies a Toms effect expression condition, and correction processing for increasing a relative value of the output of the coolant temperature sensor with respect to the target temperature when the micelles is added and the Toms effect expression condition is established.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: October 1, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akihiro Honda, Saki Nakayama, Masahiko Matsumura, Koichi Nishimura
  • COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20180274430
    Abstract: A cooling device for an internal combustion engine includes a circulation path, a coolant temperature sensor, a coolant pump, and an electronic control unit. The electronic control unit is configured to execute processing for performing feedback control on power of the coolant pump such that the output of the coolant temperature sensor becomes a target temperature, micelle determination processing for determining whether or not micelles are added to a coolant based on pump work of the coolant pump and the flow rate of the coolant flowing through the circulation path, Toms determination processing for determining whether or not the flow rate of the coolant satisfies a Toms effect expression condition, and correction processing for increasing a relative value of the output of the coolant temperature sensor with respect to the target temperature when the micelles is added and the Toms effect expression condition is established.
    Type: Application
    Filed: March 21, 2018
    Publication date: September 27, 2018
    Applicants: Toyota Jidosha Kabushiki Kaisha, Osaka Gas Co., Ltd.
    Inventors: Akihiro Honda, Saki Nakayama, Masahiko Matsumura, Koichi Nishimura