Patents by Inventor Senthil K. Vadivelu

Senthil K. Vadivelu 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).

  • Battery state estimator with overpotential-based variable resistors
    Patent number: 9176198
    Abstract: A battery model and equivalent circuit that includes an ohmic resistance, a first RC-pair that models a battery cell charge transfer reaction and double layer processes and a second RC-pair that models battery cell diffusion. Each of the ohmic resistance, the charge transfer reaction resistance and the diffusion resistance in the model are variable resistances, where each resistance changes in response to a change in voltage potential across the resistance.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: November 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Brian J. Koch, Krishnan S. Hariharan, Senthil K. Vadivelu
  • INTEGRATED CRYO-ADSORBER HYDROGEN STORAGE SYSTEM AND FUEL CELL COOLING SYSTEM
    Publication number: 20130309588
    Abstract: One embodiment may include an integrated fuel supply and cooling system for a fuel cell including a fuel cell stack and a fuel cell stack cooling system; a cryo-adsorber including a bed of particles for adsorbing hydrogen fluid; wherein the cryo-adsorber may be in heat transfer communication with the fuel cell stack cooling system and in fluid communication with the fuel cell stack.
    Type: Application
    Filed: June 27, 2012
    Publication date: November 21, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Senthil K. Vadivelu
  • BATTERY STATE ESTIMATOR WITH OVERPOTENTIAL-BASED VARIABLE RESISTORS
    Publication number: 20130218496
    Abstract: A battery model and equivalent circuit that includes an ohmic resistance, a first RC-pair that models a battery cell charge transfer reaction and double layer processes and a second RC-pair that models battery cell diffusion. Each of the ohmic resistance, the charge transfer reaction resistance and the diffusion resistance in the model are variable resistances, where each resistance changes in response to a change in voltage potential across the resistance.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 22, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brian J. Koch, Krishnan S. Hariharan, Senthil K. Vadivelu