Patents by Inventor Hooman HOMAYOUNI

Hooman HOMAYOUNI 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: 10895604
    Abstract: Systems and methods to provide a low voltage interface coupleable between an energy storage device or a DC power source (e.g., fuel cell stack, battery) and one or more AC signal diagnostic systems. The low voltage interface reduces a voltage of the DC power source and supplies the reduced voltage to the one or more AC signal diagnostic systems without affecting the results of the measurements obtained by the one or more AC signal diagnostic systems. Such functionality provides a safer method for performing advanced analysis (e.g., EIS, frequency analysis) while utilizing lower cost and/or smaller components.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 19, 2021
    Assignees: Ballard Power Systems Inc., Simon Fraser University
    Inventors: Jacob W. Devaal, Hooman Homayouni, Farid Golnaraghi
  • Publication number: 20200328439
    Abstract: Methods and apparatus for detecting electrical short circuits in fuel cell stacks are provided. The methods involve supplying a reactant and an inert gas to a fuel cell stack and measuring the open circuit voltage of fuel cell assemblies in the fuel cell stack. The sensitivity of the methods can be adjusted to detect an electrical short circuit having a resistance at or below a particular threshold short-circuit resistance value, by using a suitable reactant concentration in the method. The methods can include determining a set-point reactant concentration that can be used to detect an electrical short circuit having a resistance at or below a particular threshold short-circuit resistance value.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 15, 2020
    Inventors: Amir Masoud Niroumand, Michael Hermann Eikerling, Mark Randall Olfert, Hooman Homayouni
  • Publication number: 20180203074
    Abstract: Systems and methods to provide a low voltage interface coupleable between an energy storage device or a DC power source (e.g., fuel cell stack, battery) and one or more AC signal diagnostic systems. The low voltage interface reduces a voltage of the DC power source and supplies the reduced voltage to the one or more AC signal diagnostic systems without affecting the results of the measurements obtained by the one or more AC signal diagnostic systems. Such functionality provides a safer method for performing advanced analysis (e.g., EIS, frequency analysis) while utilizing lower cost and/or smaller components.
    Type: Application
    Filed: July 13, 2016
    Publication date: July 19, 2018
    Inventors: Jacob W. DEVAAL, Hooman HOMAYOUNI, Farid GOLNARAGHI