Patents by Inventor Andrew K. Chandler

Andrew K. Chandler 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: 10978755
    Abstract: A cooling system for a rechargeable energy system includes a plurality of bus bars, a cooling plate configured for cooling the plurality of bus bars and disposed in a thermally-conductive relationship with a portion of each of the plurality of bus bars, and an isolation component disposed between and in contact with the cooling plate and each of the plurality of bus bars. A rechargeable energy storage system and device are also described.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: April 13, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Bao Wang, Andrew K. Chandler, David P. Tasky, Karl C. Dorgan, Robert J. Heydel
  • Patent number: 10886758
    Abstract: An electrical system includes a battery disconnect unit (BDU) connected to a rechargeable energy storage system (RESS) via a high-voltage bus. The BDU has one or more contactors that close responsive a low-voltage drive current to thereby connect the RESS to the high-voltage bus. A low-voltage drive circuit conducts the drive current to the contactor(s). Opening of a low-voltage connection interrupts the drive current and causes the contactor(s) to transition from the closed state to an open state. The contactor(s) open in response to interruption of the drive current to thereby disconnect the RESS. The contactor(s) may be closed again after a lockout safety procedure, such that reestablishing the electrical connection does not itself re-energize the high-voltage bus. An electrified powertrain includes a transmission, electric machine, power inverter module, and the above-noted electrical system.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: January 5, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Brandon M. Thayer, Fang Wang, Charles Hua, Andrew K. Chandler
  • Publication number: 20200313260
    Abstract: A cooling system for a rechargeable energy system includes a plurality of bus bars, a cooling plate configured for cooling the plurality of bus bars and disposed in a thermally-conductive relationship with a portion of each of the plurality of bus bars, and an isolation component disposed between and in contact with the cooling plate and each of the plurality of bus bars. A rechargeable energy storage system and device are also described.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 1, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Bao Wang, Andrew K. Chandler, David P. Tasky, Karl C. Dorgan, Robert J. Heydel
  • Patent number: 10654370
    Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 19, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Chandra S. Namuduri, Thomas W. Nehl, Lei Hao, Michael Harpster, Andrew K. Chandler
  • Publication number: 20200052508
    Abstract: An electrical system includes a battery disconnect unit (BDU) connected to a rechargeable energy storage system (RESS) via a high-voltage bus. The BDU has one or more contactors that close responsive a low-voltage drive current to thereby connect the RESS to the high-voltage bus. A low-voltage drive circuit conducts the drive current to the contactor(s). Opening of a low-voltage connection interrupts the drive current and causes the contactor(s) to transition from the closed state to an open state. The contactor(s) open in response to interruption of the drive current to thereby disconnect the RESS. The contactor(s) may be closed again after a lockout safety procedure, such that reestablishing the electrical connection does not itself re-energize the high-voltage bus. An electrified powertrain includes a transmission, electric machine, power inverter module, and the above-noted electrical system.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 13, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Brandon M. Thayer, Fang Wang, Charles Hua, Andrew K. Chandler
  • Publication number: 20190351778
    Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chandra S. Namuduri, Thomas W. Nehl, Lei Hao, Michael Harpster, Andrew K. Chandler
  • Patent number: 10369896
    Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: August 6, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Chandra S. Namuduri, Thomas W. Nehl, Lei Hao, Michael Harpster, Andrew K. Chandler
  • Publication number: 20190160953
    Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chandra S. Namuduri, Thomas W. Nehl, Lei Hao, Michael Harpster, Andrew K. Chandler
  • Patent number: 9362544
    Abstract: Disclosed herein are systems and methods for control of a current interruption component in a battery system. Various embodiments consistent with the present disclosure may include a detection system configured to detect an event (e.g., an impact event, a resistive short, a coolant leak, etc.) and a control system configured to receive information from the detection system and to generate a control signal based upon detection of the event. The control signal may selectively actuate an electrical clearing component. A current interruption component may be configured to selectively interrupt a flow of current upon an occurrence of a condition that results from actuation of the electrical clearing component. Upon detection of the event by the detection system, the control system may generate the control signal to actuate the electrical clearing component, and the actuation of the electrical clearing component may trigger the current interruption system.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: June 7, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Paul W. Kelley, Andrew K. Chandler, Brian J. Martel
  • Patent number: 9194904
    Abstract: System and methods for detecting electrical leakages in a battery sensing are presented. In certain embodiments, the systems and methods allow a vehicle battery sensing circuit and/or other associated system to detect certain electrical leakages and implement one or more actions to protect vehicle systems from damage resulting from such leakages.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: November 24, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Fang Wang, Andrew K. Chandler, Paul W. Kelley, Richard H. Miller
  • Patent number: 9176197
    Abstract: System and methods for measuring parameters of a battery system using a battery sensing circuit are presented. In certain embodiments, the systems and methods allow a vehicle battery sensing circuit and/or other associated system to measure a compensation parameter. The compensation parameter may be utilized by the battery sensing circuit and/or other associated system in measuring other parameters relating to the battery system including cell voltages.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: November 3, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Andrew K. Chandler, Roger M. Brisbane, Paul W. Kelley
  • Publication number: 20150022213
    Abstract: System and methods for measuring parameters of a battery system using a battery sensing circuit are presented. In certain embodiments, the systems and methods allow a vehicle battery sensing circuit and/or other associated system to measure a compensation parameter. The compensation parameter may be utilized by the battery sensing circuit and/or other associated system in measuring other parameters relating to the battery system including cell voltages.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 22, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: ANDREW K. CHANDLER, ROGER M. BRISBANE, PAUL W. KELLEY
  • Publication number: 20140376137
    Abstract: System and methods for detecting electrical leakages in a battery sensing are presented. In certain embodiments, the systems and methods allow a vehicle battery sensing circuit and/or other associated system to detect certain electrical leakages and implement one or more actions to protect vehicle systems from damage resulting from such leakages.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 25, 2014
    Inventors: FANG WANG, ANDREW K. CHANDLER, PAUL W. KELLEY, RICHARD H. MILLER
  • Publication number: 20140242421
    Abstract: Disclosed herein are systems and methods for control of a current interruption component in a battery system. Various embodiments consistent with the present disclosure may include a detection system configured to detect an event (e.g., an impact event, a resistive short, a coolant leak, etc.) and a control system configured to receive information from the detection system and to generate a control signal based upon detection of the event. The control signal may selectively actuate an electrical clearing component. A current interruption component may be configured to selectively interrupt a flow of current upon an occurrence of a condition that results from actuation of the electrical clearing component. Upon detection of the event by the detection system, the control system may generate the control signal to actuate the electrical clearing component, and the actuation of the electrical clearing component may trigger the current interruption system.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: PAUL W. KELLEY, ANDREW K. CHANDLER, BRIAN J. MARTEL
  • Patent number: 8760306
    Abstract: A sensor arrangement and method that may be used with a variety of different energy storage devices, including battery packs found in hybrid vehicles, battery electric vehicles, and other types of vehicles. An exemplary sensor arrangement includes a number of sensor units, a controller, and several connections, wherein two or more sensor units are coupled to each node of the battery pack and are coupled to the controller over different connections. An exemplary method is divided into two aspects: an error detection aspect and an error resolution aspect. Because the sensor arrangement provides multiple sensor readings for each node being evaluated, the method can enable the sensor arrangement to continue operating accurately and with redundancy even if it experiences a loss of one or more sensor units.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: June 24, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew K. Chandler, Andrew H. Leutheuser, Willard A. Blevins, Larry J. Yount
  • Patent number: 8587318
    Abstract: A sensor arrangement and method that may be used with a variety of different energy storage devices, including battery packs found in hybrid vehicles, battery electric vehicles, and other types of vehicles. Some battery monitoring systems, such as those designed to monitor and/or control lithium-ion battery packs, may require individual voltage readings for each and every cell. If a battery monitoring system component—even one that provides just one of these sensor readings—malfunctions or otherwise experiences a fault condition, then it may be necessary to bring the entire vehicle in for service. The exemplary sensor arrangement and method may be used to control a series of balancing switches in the sensor arrangement in such a way that enables the vehicle to detect fault conditions and to continue operating successfully in the event that such fault conditions occur.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: November 19, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew K. Chandler, Andrew H. Leutheuser, Willard A. Blevins, Larry J. Yount
  • Patent number: 8384354
    Abstract: A sensor arrangement and method that may be used with a variety of different energy storage devices, including battery packs found in hybrid vehicles, battery electric vehicles, and other types of vehicles. An exemplary sensor arrangement includes a number of sensor units, a controller, and several connections, wherein two or more sensor units are coupled to each node of the battery pack and are coupled to the controller over different connections. An exemplary method is divided into two aspects: an error detection aspect and an error resolution aspect. Because the sensor arrangement provides multiple sensor readings for each node being evaluated, the method can enable the sensor arrangement to continue operating accurately and with redundancy even if it experiences a loss of one or more sensor units.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: February 26, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew K. Chandler, Andrew H. Leutheuser, Willard A. Blevins, Larry J. Yount
  • Publication number: 20120025835
    Abstract: A sensor arrangement and method that may be used with a variety of different energy storage devices, including battery packs found in hybrid vehicles, battery electric vehicles, and other types of vehicles. Some battery monitoring systems, such as those designed to monitor and/or control lithium-ion battery packs, may require individual voltage readings for each and every cell. If a battery monitoring system component—even one that provides just one of these sensor readings—malfunctions or otherwise experiences a fault condition, then it may be necessary to bring the entire vehicle in for service. The exemplary sensor arrangement and method may be used to control a series of balancing switches in the sensor arrangement in such a way that enables the vehicle to detect fault conditions and to continue operating successfully in the event that such fault conditions occur.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 2, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Andrew K. Chandler, Andrew H. Leutheuser, Willard A. Blevins, Larry J. Yount
  • Publication number: 20110089953
    Abstract: A sensor arrangement and method that may be used with a variety of different energy storage devices, including battery packs found in hybrid vehicles, battery electric vehicles, and other types of vehicles. An exemplary sensor arrangement includes a number of sensor units, a controller, and several connections, wherein two or more sensor units are coupled to each node of the battery pack and are coupled to the controller over different connections. An exemplary method is divided into two aspects: an error detection aspect and an error resolution aspect. Because the sensor arrangement provides multiple sensor readings for each node being evaluated, the method can enable the sensor arrangement to continue operating accurately and with redundancy even if it experiences a loss of one or more sensor units.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 21, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Andrew K. Chandler, Andrew H. Leutheuser, Willard A. Blevins, Larry J. Yount