Patents by Inventor William Waldschmidt

William Waldschmidt 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).

  • Control system for auxiliary power unit of a vehicle
    Patent number: 9211881
    Abstract: A method of controlling an auxiliary power unit of a vehicle. The auxiliary power unit is in communication with an air conditioning system of the vehicle and includes an engine and an alternator coupled to the engine. The method includes determining a state of a compressor of the air conditioning system, the compressor including an off state and an on state, reducing an alternator load relative to the engine in response to the compressor being varied from the off state to the on state, increasing the alternator load relative to the engine after a predetermined time interval, and simultaneously operating the alternator up to an alternator load capacity and the compressor up to a compressor load capacity.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: December 15, 2015
    Assignee: THERMO KING CORPORATION
    Inventors: William Waldschmidt, Gregory R. Truckenbrod, Peter J. Loomis, Michael D. Turnquist
  • CONTROL SYSTEM FOR AUXILIARY POWER UNIT OF A VEHICLE
    Publication number: 20140316650
    Abstract: A method of controlling an auxiliary power unit of a vehicle. The auxiliary power unit is in communication with an air conditioning system of the vehicle and includes an engine and an alternator coupled to the engine. The method includes determining a state of a compressor of the air conditioning system, the compressor including an off state and an on state, reducing an alternator load relative to the engine in response to the compressor being varied from the off state to the on state, increasing the alternator load relative to the engine after a predetermined time interval, and simultaneously operating the alternator up to an alternator load capacity and the compressor up to a compressor load capacity.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: William Waldschmidt, Gregory R. Truckenbrod, Peter J. Loomis, Michael D. Turnquist
  • Control system for auxiliary power unit of a vehicle
    Patent number: 8798857
    Abstract: A method of controlling an auxiliary power unit of a vehicle. The auxiliary power unit is in communication with an air conditioning system of the vehicle and includes an engine and an alternator coupled to the engine. The method includes determining a state of a compressor of the air conditioning system, the compressor including an off state and an on state, reducing an alternator load relative to the engine in response to the compressor being varied from the off state to the on state, increasing the alternator load relative to the engine after a predetermined time interval, and simultaneously operating the alternator up to an alternator load capacity and the compressor up to a compressor load capacity.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 5, 2014
    Assignee: Thermo King Corporation
    Inventors: William Waldschmidt, Gregory R. Truckenbrod, Peter J. Loomis, Michael D. Turnquist
  • CONTROL SYSTEM FOR AUXILIARY POWER UNIT OF A VEHICLE
    Publication number: 20130325257
    Abstract: A method of controlling an auxiliary power unit of a vehicle. The auxiliary power unit is in communication with an air conditioning system of the vehicle and includes an engine and an alternator coupled to the engine. The method includes determining a state of a compressor of the air conditioning system, the compressor including an off state and an on state, reducing an alternator load relative to the engine in response to the compressor being varied from the off state to the on state, increasing the alternator load relative to the engine after a predetermined time interval, and simultaneously operating the alternator up to an alternator load capacity and the compressor up to a compressor load capacity.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: THERMO KING CORPORATION
    Inventors: William Waldschmidt, Gregory R. Truckenbrod, Peter J. Loomis, Michael D. Turnquist