Patents by Inventor Sudha Senthil

Sudha Senthil 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).

  • Cooling system compressor with variable operating range
    Patent number: 8682527
    Abstract: A method of operating an air conditioning system includes changing output of the compressor based on a temperature limit of the evaporator. The temperature limit is one of a predetermined fixed temperature limit and a variable temperature limit. The method also includes determining the variable temperature limit by determining a target air outlet temperature for conditioned air in a control space, detecting an actual evaporator temperature, calculating a difference between the target air outlet temperature and the actual evaporator temperature, finding a predetermined first temperature adjustment that correlates to the difference, finding a predetermined second temperature adjustment that correlates to another condition, and calculating the variable temperature limit by adjusting the fixed temperature limit by one of the first and second temperature adjustments.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: March 25, 2014
    Assignees: DENSO International America, Inc., GM Global Technology Operations LLC
    Inventors: Sudha Senthil, Robert Wunsche, Curtis G. Vincent, James R. Reed
  • AIR CONDITIONING APPARATUS
    Publication number: 20120252339
    Abstract: An air conditioning apparatus having an electrical controlling unit that is configured to receive a wiper motor signal, and accumulates a wiper signal value based on the wiper motor signal. When the accumulated wiper signal value exceeds a threshold value, the electrical controlling unit stops introducing recirculation airflow in an auto selection mode, until predetermined conditions are satisfied. The air conditioning apparatus may detect rain by the wiper motor signal.
    Type: Application
    Filed: May 23, 2011
    Publication date: October 4, 2012
    Applicants: DENSO CORPORATION, DENSO INTERNATIONAL AMERICA, INC.
    Inventors: Sudha Senthil, Kevin Marrocco
  • COOLING SYSTEM COMPRESSOR WITH VARIABLE OPERATING RANGE
    Publication number: 20120253592
    Abstract: A method of operating an air conditioning system includes changing output of the compressor based on a temperature limit of the evaporator. The temperature limit is one of a predetermined fixed temperature limit and a variable temperature limit. The method also includes determining the variable temperature limit by determining a target air outlet temperature for conditioned air in a control space, detecting an actual evaporator temperature, calculating a difference between the target air outlet temperature and the actual evaporator temperature, finding a predetermined first temperature adjustment that correlates to the difference, finding a predetermined second temperature adjustment that correlates to another condition, and calculating the variable temperature limit by adjusting the fixed temperature limit by one of the first and second temperature adjustments.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 4, 2012
    Applicants: GM Global Technology Operations LLC, DENSO International America, Inc.
    Inventors: Sudha Senthil, Robert Wunsche, Curtis G. Vincent, James R. Reed