Patents by Inventor David C. Robertson

David C. Robertson 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: 10024922
    Abstract: A method and apparatus for receiving a selection of a first device under test. Connecting the first device under test to a load based at least on a closed high-side driver relay and a closed low-side driver relay for a first switch, from a plurality of devices under test. Closing at a first rate a high-side driver relay of a first switch based at least on the received selection. Closing at a second rate a low-side driver relay of the first switch based at least on the received selection, wherein the first rate and second rate are different.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: July 17, 2018
    Assignee: UChicago Argonne, LLC
    Inventors: David C. Robertson, Panagiotis D. Prezas, Lee K. Walker
  • Publication number: 20150357139
    Abstract: A method and apparatus for receiving a selection of a first device under test. Connecting the first device under test to a load based at least on a closed high-side driver relay and a closed low-side driver relay for a first switch, from a plurality of devices under test. Closing at a first rate a high-side driver relay of a first switch based at least on the received selection. Closing at a second rate a low-side driver relay of the first switch based at least on the received selection, wherein the first rate and second rate are different.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 10, 2015
    Inventors: David C. Robertson, Panagiotis D. Prezas, Lee K. Walker
  • Patent number: 8993136
    Abstract: A heating system and a method for heating a battery module are provided. The method includes determining if a temperature signal indicates that the temperature level of the battery module is less than a threshold temperature level. If the temperature level is less than a threshold temperature level, and a first battery cell group is not electrically balanced with a second battery cell group, then the method includes selecting at least one of the first and second battery cell groups to be at least partially discharged. If the first battery cell group is selected, then the method includes partially discharging the first battery cell group through a first resistor to generate heat energy.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 31, 2015
    Assignee: LG Chem, Ltd.
    Inventors: David C. Robertson, Daniel K. McNeill
  • Patent number: 8974929
    Abstract: A heating system and a method for heating a battery module are provided. The method includes determining if the temperature signal indicates that the temperature level is less than a threshold temperature level. If the temperature level is less than the threshold temperature level, then the method further includes generating a first control signal to induce the switch to have the first operational position to at least partially discharge the first and second battery cell groups through a resistor to generate heat energy in the resistor. The method further includes generating a second control signal to turn on a fan to distribute the heat energy in the battery module to increase a temperature level of the battery module.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 10, 2015
    Assignee: LG Chem, Ltd.
    Inventors: David C. Robertson, Daniel K. McNeill
  • Patent number: 8974928
    Abstract: A heating system and a method for heating a battery module are provided. The method includes generating a first signal indicative of a first voltage level being output by a first battery cell group, and generating a second signal indicative of a second voltage level being output by a second battery cell group. The method includes generating a temperature signal indicative of a temperature level of at least one of the first battery cell group and the second battery cell group. If the temperature level is less than a threshold temperature level, and the first battery cell group is not electrically balanced with the second battery cell group then the method includes selecting one of the first and second battery cell groups to be at least partially discharged through a resistor to generate heat energy in the resistor.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 10, 2015
    Assignee: LG Chem, Ltd.
    Inventor: David C. Robertson
  • Patent number: 8859119
    Abstract: A heating system and a method for heating a battery module are provided. The method includes generating a temperature signal indicative of a temperature level of at least one of a first battery cell group and a second battery cell group. If a temperature level is less than the threshold temperature level, then the method further includes generating first and second control signals to induce first and second switches, respectively, to each have a first operational position to at least partially discharge the first and second battery cell groups, respectively, through first and second resistors, respectively, to generate heat energy in the first and second resistors.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: October 14, 2014
    Assignee: LG Chem, Ltd.
    Inventor: David C. Robertson
  • Publication number: 20130004805
    Abstract: A heating system and a method for heating a battery module are provided. The method includes determining if the temperature signal indicates that the temperature level is less than a threshold temperature level. If the temperature level is less than the threshold temperature level, then the method further includes generating a first control signal to induce the switch to have the first operational position to at least partially discharge the first and second battery cell groups through a resistor to generate heat energy in the resistor. The method further includes generating a second control signal to turn on a fan to distribute the heat energy in the battery module to increase a temperature level of the battery module.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: LG CHEM LTD.
    Inventors: David C. Robertson, Daniel K. McNeill
  • Publication number: 20130004804
    Abstract: A heating system and a method for heating a battery module are provided. The method includes determining if a temperature signal indicates that the temperature level of the battery module is less than a threshold temperature level. If the temperature level is less than a threshold temperature level, and a first battery cell group is not electrically balanced with a second battery cell group, then the method includes selecting at least one of the first and second battery cell groups to be at least partially discharged. If the first battery cell group is selected, then the method includes partially discharging the first battery cell group through a first resistor to generate heat energy.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: LG CHEM LTD.
    Inventors: David C. Robertson, Daniel K. McNeill
  • Publication number: 20130004803
    Abstract: A heating system and a method for heating a battery module are provided. The method includes generating a first signal indicative of a first voltage level being output by a first battery cell group, and generating a second signal indicative of a second voltage level being output by a second battery cell group. The method includes generating a temperature signal indicative of a temperature level of at least one of the first battery cell group and the second battery cell group. If the temperature level is less than a threshold temperature level, and the first battery cell group is not electrically balanced with the second battery cell group then the method includes selecting one of the first and second battery cell groups to be at least partially discharged through a resistor to generate heat energy in the resistor.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: LG CHEM LTD.
    Inventor: David C. Robertson
  • Publication number: 20130004802
    Abstract: A heating system and a method for heating a battery module are provided. The method includes generating a temperature signal indicative of a temperature level of at least one of a first battery cell group and a second battery cell group. If a temperature level is less than the threshold temperature level, then the method further includes generating first and second control signals to induce first and second switches, respectively, to each have a first operational position to at least partially discharge the first and second battery cell groups, respectively, through first and second resistors, respectively, to generate heat energy in the first and second resistors.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: LG CHEM LTD.
    Inventor: David C. Robertson
  • Patent number: 8341449
    Abstract: A battery management system is provided. The system includes a battery monitoring device having a microprocessor and a hardware component. The microprocessor identifies a non-modifiable node ID from the hardware component. The microprocessor also obtains operational parameters associated with the at least one battery cell. The microprocessor computes a network ID for the battery monitoring device based on the non-modifiable node ID. The system further includes a main controller that communicates with the battery monitoring device via a communication bus utilizing the network ID.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: December 25, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Vaughan Daniel, Michael Trader, JongMin Park, David C. Robertson
  • Patent number: 8163412
    Abstract: A battery cell interconnect and voltage sensing assembly and a method for coupling a battery cell assembly thereto are provided. The battery cell interconnect and voltage sensing assembly includes a frame member holding a plurality of electrical interconnect members and a circuit board with an electrical connector. The assembly routes an electrical current from battery cell assemblies through the electrical interconnect members and can allow a voltage at each of the electrical interconnect members to be sensed at the electrical connector.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 24, 2012
    Assignee: LG Chem, Ltd.
    Inventors: William Koetting, Kwok Tom, David C. Robertson, Heekook Yang, Martin J. Klein
  • Publication number: 20110258471
    Abstract: A battery management system is provided. The system includes a battery monitoring device having a microprocessor and a hardware component. The microprocessor identifies a non-modifiable node ID from the hardware component. The microprocessor also obtains operational parameters associated with the at least one battery cell. The microprocessor computes a network ID for the battery monitoring device based on the non-modifiable node ID. The system further includes a main controller that communicates with the battery monitoring device via a communication bus utilizing the network ID.
    Type: Application
    Filed: June 24, 2010
    Publication date: October 20, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Vaughan Daniel, Michael Trader, JongMin Park, David C. Robertson
  • Patent number: 8035986
    Abstract: A battery cell interconnect and voltage sensing assembly and a method for coupling a battery cell assembly thereto are provided. The battery cell interconnect and voltage sensing assembly includes a circuit board, electrical interconnect members, and an electrical connector. The circuit board further has slots therethrough for receiving the electrical interconnect members thereon. Electrical terminals from battery cell assemblies are coupled to the electrical interconnect members. The circuit board also has electrical traces for routing voltages at the electrical interconnect members to the electrical connector for sensing voltages of the battery cell assemblies.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: October 11, 2011
    Assignee: LG Chem, Ltd.
    Inventors: William Koetting, Kwok Tom, David C. Robertson, Martin J. Klein
  • Patent number: 7962661
    Abstract: A system and a method for determining a bus address for a controller within a network are provided. The method includes coupling a first set of pins of a wire harness connector to a second set of pins of a PCB connector of the controller. The method further includes sampling voltages of a portion of the first set of pins of the PCB connector to determine a wire harness ID utilizing a microprocessor. The method further includes accessing a look-up table from a memory device to select the bus address for the controller using the wire harness ID utilizing the microprocessor. The look-up table includes a plurality of bus addresses correspondingly associated with a plurality of wire harness IDs. The method further includes storing the selected bus address in the memory device utilizing the microprocessor.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: June 14, 2011
    Assignee: LG Chem, Ltd.
    Inventors: David C. Robertson, Jong Min Park
  • Publication number: 20090327540
    Abstract: A system and a method for determining a bus address for a controller within a network are provided. The method includes coupling a first set of pins of a wire harness connector to a second set of pins of a PCB connector of the controller. The method further includes sampling voltages of a portion of the first set of pins of the PCB connector to determine a wire harness ID utilizing a microprocessor. The method further includes accessing a look-up table from a memory device to select the bus address for the controller using the wire harness ID utilizing the microprocessor. The look-up table includes a plurality of bus addresses correspondingly associated with a plurality of wire harness IDs. The method further includes storing the selected bus address in the memory device utilizing the microprocessor.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: LG CHEM, LTD.
    Inventors: David C. Robertson, Jong Min Park
  • Publication number: 20090323293
    Abstract: A battery cell interconnect and voltage sensing assembly and a method for coupling a battery cell assembly thereto are provided. The battery cell interconnect and voltage sensing assembly includes a circuit board, electrical interconnect members, and an electrical connector. The circuit board further has slots therethrough for receiving the electrical interconnect members thereon. Electrical terminals from battery cell assemblies are coupled to the electrical interconnect members. The circuit board also has electrical traces for routing voltages at the electrical interconnect members to the electrical connector for sensing voltages of the battery cell assemblies.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: LG CHEM, LTD.
    Inventors: William Koetting, Kwok Tom, David C. Robertson, Martin J. Klein
  • Publication number: 20090325042
    Abstract: A battery cell interconnect and voltage sensing assembly and a method for coupling a battery cell assembly thereto are provided. The battery cell interconnect and voltage sensing assembly includes a frame member holding a plurality of electrical interconnect members and a circuit board with an electrical connector. The assembly routes an electrical current from battery cell assemblies through the electrical interconnect members and can allow a voltage at each of the electrical interconnect members to be sensed at the electrical connector.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: LG CHEM, LTD.
    Inventors: William Koetting, Kwok Tom, David C. Robertson, Heekook Yang, Martin J. Klein
  • Patent number: 5884226
    Abstract: Recent upgrades to the MOTRAN atmospheric radiation code improve the accuracy of its radiance predictions, especially in the presence of clouds and thick aerosols, and for multiple scattering in regions of strong molecular line absorption. MODTRAN3.5 features a generalized specification of cloud properties, while research version MODTRAN4 implements a Correlated-k (CK) approach for more accurate calculation of multiply scattered radiance. Comparisons to cloud measurements demonstrate the viability of the CK approach. The impact of these upgrades on predictions for AVIRIS viewing scenarios is discussed for both clear and clouded skies; the CK approach provides refined predictions for AVIRIS nadir and near-nadir viewing.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: March 16, 1999
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Gail P. Anderson, James H. Chetwynd, Lawrence S. Bernstein, Alexander Berk, Prabhat K. Acharya, David C. Robertson, Eric P. Shettle
  • Patent number: 5396265
    Abstract: A tactile computer input device which simulates an object being designed is used with a computer aided design (CAD) system. The input device allows a user to manually manipulate the input device as if it were the object under design. A preferred embodiment is directed toward the design of sheet metal parts. The design begins with a virtual metal sheet which is then manipulated by a user through manual manipulation of the input device. Bending of the virtual object is accomplished by bending of the input device. Stretching and shrinking of the virtual object is accomplished by expanding and compressing the input device. Spatial orientation of the virtual object follows the spatial orientation of the input device by providing the input device with a Polhemus orientation sensor. Other functions for manipulating the virtual sheet metal object include cutting, embossing, and punching.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: March 7, 1995
    Assignee: Massachusetts Institute of Technology
    Inventors: Karl T. Ulrich, Marc Filerman, Emanuel Sachs, Andrew Roberts, Todd Siler, Daniel J. Berkery, David C. Robertson