Patents by Inventor Katsuya MONGUCHI

Katsuya MONGUCHI 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).

  • Engine control device and engine control method
    Patent number: 10458355
    Abstract: Provided is an engine control device for correcting output characteristics of an oxygen sensor and performing air-fuel ratio feedback control. The engine control device includes various sensors for detecting operating state information of an engine, an oxygen sensor, and air-fuel ratio feedback controller to adjust an amount of fuel injected into the engine, on the basis of the operating state information and an output voltage value of the oxygen sensor, wherein the air-fuel ratio feedback controller calculates, in accordance with the operating state information based on detection results from the various sensors, a coefficient for correcting the output voltage value, implements air-fuel ratio feedback control on the basis of an air-fuel ratio feedback control correction amount calculated using a corrected oxygen sensor output voltage value calculated on the basis of the coefficient, and adjusts the amount of fuel injected into the engine.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: October 29, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuaki Shirasaki, Shuichi Wada, Kenichi Yamagata, Katsuya Monguchi
  • ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD
    Publication number: 20180266353
    Abstract: Provided is an engine control device for correcting output characteristics of an oxygen sensor and performing air-fuel ratio feedback control. The engine control device includes various sensors for detecting operating state information of an engine, an oxygen sensor, and air-fuel ratio feedback controller to adjust an amount of fuel injected into the engine, on the basis of the operating state information and an output voltage value of the oxygen sensor, wherein the air-fuel ratio feedback controller calculates, in accordance with the operating state information based on detection results from the various sensors, a coefficient for correcting the output voltage value, implements air-fuel ratio feedback control on the basis of an air-fuel ratio feedback control correction amount calculated using a corrected oxygen sensor output voltage value calculated on the basis of the coefficient, and adjusts the amount of fuel injected into the engine.
    Type: Application
    Filed: September 22, 2017
    Publication date: September 20, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Mitsuaki SHIRASAKI, Shuichi WADA, Kenichi YAMAGATA, Katsuya MONGUCHI