Patents by Inventor James D. Marus

James D. Marus 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: 9013143
    Abstract: An exemplary charging system and method for controlling a fast charging process involving an external power source (e.g., a high-voltage charging station providing 10 kW-300 kW of power) and a plug-in electric vehicle. In one embodiment, the charging method uses a costing function to estimate the negative impact each fast charging session has on battery life. If the overall negative impact of past and/or present charging sessions has exceeded some threshold, then the charging method may reduce charging parameters (e.g., limit the charging amperage, voltage, power, duration, etc.) in an effort to avoid further diminishing the battery life. Thus, the charging system and method enable a user to frequently engage in fast charging sessions with an external power source, yet minimize the impact that such sessions have on the battery.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: April 21, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: James D. Marus, Vernon L. Newhouse
  • Publication number: 20130234664
    Abstract: An exemplary charging system and method for controlling a fast charging process involving an external power source (e.g., a high-voltage charging station providing 10 kW-300 kW of power) and a plug-in electric vehicle. In one embodiment, the charging method uses a costing function to estimate the negative impact each fast charging session has on battery life. If the overall negative impact of past and/or present charging sessions has exceeded some threshold, then the charging method may reduce charging parameters (e.g., limit the charging amperage, voltage, power, duration, etc.) in an effort to avoid further diminishing the battery life. Thus, the charging system and method enable a user to frequently engage in fast charging sessions with an external power source, yet minimize the impact that such sessions have on the battery.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James D. Marus, Vernon L. Newhouse
  • Patent number: 8483897
    Abstract: Vehicular propulsion systems and methods for managing propulsion systems are provided. The remaining energy in an energy supply coupled to a propulsion actuator on-board a vehicle is monitored. The energy provided to an on-board auxiliary non-propulsion load device from the energy supply is automatically limited based on the remaining energy in the energy supply.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: July 9, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: James D. Marus, James C. Gibbs
  • Publication number: 20120041621
    Abstract: Vehicular propulsion systems and methods for managing propulsion systems are provided. The remaining energy in an energy supply coupled to a propulsion actuator on-board a vehicle is monitored. The energy provided to an on-board auxiliary non-propulsion load device from the energy supply is automatically limited based on the remaining energy in the energy supply.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 16, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: JAMES D. MARUS, JAMES C. GIBBS
  • Patent number: 8049359
    Abstract: A method is disclosed that defines a protocol for distributing power to high voltage components when two conditions exist: they being when the vehicle is being propelled or operated and when the power requested of the power supply is less than what the power supply can provide. The method determines which high voltage components can receive reduced or intermittent voltage and still allow the vehicle to operate in a proper manner. Calibrations of the usage and energy loss are based on parameters that dictate how important it is that a particular high voltage component receives as much of its requested power as possible. The critical function components will be weighted differently than those less critical components.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: November 1, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher A. Kinser, James D. Marus
  • Publication number: 20110089758
    Abstract: A method is disclosed that defines a protocol for distributing power to high voltage components when two conditions exist: they being when the vehicle is being propelled or operated and when the power requested of the power supply is less than what the power supply can provide. The method determines which high voltage components can receive reduced or intermittent voltage and still allow the vehicle to operate in a proper manner. Calibrations of the usage and energy loss are based on parameters that dictate how important it is that a particular high voltage component receives as much of its requested power as possible. The critical function components will be weighted differently than those less critical components.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 21, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Christopher A. Kinser, James D. Marus