Patents by Inventor Naiyuan Yao

Naiyuan Yao 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).

  • Method for measuring AC impedance of battery in composite power supply power system
    Patent number: 11971457
    Abstract: The present invention relates to a method for measuring the AC impedance of a battery in a composite power supply power system, comprising the following steps: determining the AC disturbance signal amplitude, operating the DC/DC voltage converter to generate the AC disturbance signal, collecting the output signals of the fuel cell and the lithium battery, calculating the output power of the fuel cell and the lithium battery; calculating the demand power of the load, and when the demand power is stable, calculating the impedance of the lithium battery and the fuel cell separately, otherwise, only the impedance of the fuel cell is calculated.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: April 30, 2024
    Assignee: TONGJI UNIVERSITY
    Inventors: Tiancai Ma, Yanbo Yang, Kaihang Song, Weikang Lin, Naiyuan Yao
  • METHOD FOR MEASURING AC IMPEDANCE OF BATTERY IN COMPOSITE POWER SUPPLY POWER SYSTEM
    Publication number: 20220155377
    Abstract: The present invention relates to a method for measuring the AC impedance of a battery in a composite power supply power system, comprising the following steps: determining the AC disturbance signal amplitude, operating the DC/DC voltage converter to generate the AC disturbance signal, collecting the output signals of the fuel cell and the lithium battery, calculating the output power of the fuel cell and the lithium battery; calculating the demand power of the load, and when the demand power is stable, calculating the impedance of the lithium battery and the fuel cell separately, otherwise, only the impedance of the fuel cell is calculated.
    Type: Application
    Filed: November 5, 2021
    Publication date: May 19, 2022
    Applicant: TONGJI UNIVERSITY
    Inventors: Tiancai Ma, Yanbo Yang, Kaihang Song, Weikang Lin, Naiyuan Yao