Patents by Inventor Seigo KADOTA

Seigo KADOTA 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).

  • Rechargeable battery state estimation device
    Patent number: 11307261
    Abstract: In response to demands for stably and precisely estimating states, a rechargeable battery state estimation device includes a current detecting unit which detects a charge-discharge current of the rechargeable battery as a detected current; a voltage detecting unit which detects a voltage between terminals of the rechargeable battery as a detected voltage; an OCV estimation method SOC estimation unit which calculates an OCV estimation method state of charge, based on the detected current and the detected voltage; a current integration method parameter estimation unit which estimates a current integration method parameter including a capacity retention rate, based on the detected current and the OCV estimation method state of charge; and a corrected SOC estimation unit which calculates an estimated state of charge, based on the detected current, the OCV estimation method state of charge, and the current integration method parameter.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: April 19, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoki Takegami, Toshihiro Wada, Seigo Kadota
  • RECHARGEABLE BATTERY STATE ESTIMATION DEVICE
    Publication number: 20200033416
    Abstract: In response to demands for stably and precisely estimating states, a rechargeable battery state estimation device includes a current detecting unit which detects a charge-discharge current of the rechargeable battery as a detected current; a voltage detecting unit which detects a voltage between terminals of the rechargeable battery as a detected voltage; an OCV estimation method SOC estimation unit which calculates an OCV estimation method state of charge, based on the detected current and the detected voltage; a current integration method parameter estimation unit which estimates a current integration method parameter including a capacity retention rate, based on the detected current and the OCV estimation method state of charge; and a corrected SOC estimation unit which calculates an estimated state of charge, based on the detected current, the OCV estimation method state of charge, and the current integration method parameter.
    Type: Application
    Filed: November 6, 2017
    Publication date: January 30, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tomoki TAKEGAMI, Toshihiro WADA, Seigo KADOTA