Patents by Inventor John A. Trela

John A. Trela 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: 11495982
    Abstract: System and method for allocating load power drawn from multiple batteries for powering propulsion of a vehicle. The system includes: high-energy and high-power batteries respectively designed for optimal production of DC power during high-specific-energy and high-specific-power propulsion; and battery health management systems configured to monitor state of charge and state of health of the batteries and generate battery status signals. The system further includes a propulsion load configured to produce propulsion force using power converted from power generated by at least one of the batteries and a system controller configured to allocate load power drawn from the high-energy and high-power batteries for use by the propulsion load in dependence on a propulsion phase of the vehicle and the battery status.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: November 8, 2022
    Assignee: The Boeing Company
    Inventors: John A. Trela, Mehdy Barekatein, Glen M. Brown, Shengyi Liu
  • Publication number: 20220320697
    Abstract: Systems for suppressing adverse exothermic reactions in an energy storage container. One energy storage system includes a container configured to support a plurality of battery cells; a plurality of battery cells disposed inside and supported by the container; an agent supply port attached to the container; and a tube disposed inside the container and having a closed end and an open end. The open end of the tube is in fluid communication with the agent supply port. The tube comprises fusible portions which are designed to melt or soften at a temperature which is lower than the melting or softening temperature of another portion of the tube. In response to melting or softening of the fusible portions of the tube, pressurized exothermic reaction-suppressing agent is distributed inside the container via the tube.
    Type: Application
    Filed: March 5, 2022
    Publication date: October 6, 2022
    Applicant: The Boeing Company
    Inventors: Stephen D. Griffin, Douglas E. Ferguson, Aaron J. Kutzmann, John A. Trela, Frederic Lacaux
  • Publication number: 20220255335
    Abstract: Methods and systems for charging a battery string while protecting against overcharging. One system includes: a pair of disconnect devices; a power distribution bus which is electrically connected to a battery string via the disconnect devices; a battery charger connected to supply battery power to the power distribution bus for charging the battery string; a module monitoring unit configured to sense individual battery cell voltages during charging; a first processor configured to activate one disconnect device to open when the sensed individual battery cell voltages indicate overcharging; a plurality of sensors connected to sense a full-string voltage measured across the battery string and first and second half-string voltages measured across first and second half-strings of the battery string; and a second processor connected to receive sensor data during charging.
    Type: Application
    Filed: January 18, 2022
    Publication date: August 11, 2022
    Applicant: The Boeing Company
    Inventors: Vyacheslav Khozikov, Frederic Lacaux, Eugene V. Solodovnik, John A. Trela, Kolten C. Miller, Kamiar J. Karimi
  • Publication number: 20220231516
    Abstract: A reconfigurable battery system is disclosed. The reconfigurable battery system comprises a reconfigurable battery cell array, a controller, and a bus switch. The battery cell array is configured to operate in a first discharge mode, a second discharge mode, or a charge mode. The battery cell array includes a plurality of battery cells arranged as at least a first column of battery cells between a second battery terminal and a first battery terminal and a switch between each battery cell within the first column of battery cells. The bus switch is in signal communication with the battery cell array at the first battery terminal and is configured to select between electrically connecting the first battery terminal to a normal voltage bus or a high-voltage bus.
    Type: Application
    Filed: September 7, 2021
    Publication date: July 21, 2022
    Inventors: John A. Trela, Glen M. Brown, Shengyi Liu
  • Publication number: 20220115878
    Abstract: Methods and systems for protection/disconnect of airborne high-power/energy high-voltage modular multi-string battery packs (such as battery packs for airborne electric propulsion systems). The methods and systems are based on a dissimilar/redundant distributed battery pack protection architecture and use a smart mid-point battery disconnect in conjunction with centralized battery management system. The resulting battery disconnect/protection system is configured to detect bus faults, load faults and string faults and then take appropriate action to isolate the detected fault. For example, in response to a short circuit in one battery string, the faulty battery string may be disconnected from the positive and negative busbars while the remaining battery strings continue to provide power.
    Type: Application
    Filed: July 13, 2021
    Publication date: April 14, 2022
    Applicant: The Boeing Company
    Inventors: Vyacheslav Khozikov, Frederic Lacaux, Eugene V. Solodovnik, John A. Trela, Kamiar J. Karimi
  • Publication number: 20220069605
    Abstract: System and method for allocating load power drawn from multiple batteries for powering propulsion of a vehicle. The system includes: high-energy and high-power batteries respectively designed for optimal production of DC power during high-specific-energy and high-specific-power propulsion; and battery health management systems configured to monitor state of charge and state of health of the batteries and generate battery status signals. The system further includes a propulsion load configured to produce propulsion force using power converted from power generated by at least one of the batteries and a system controller configured to allocate load power drawn from the high-energy and high-power batteries for use by the propulsion load in dependence on a propulsion phase of the vehicle and the battery status.
    Type: Application
    Filed: August 5, 2021
    Publication date: March 3, 2022
    Applicant: The Boeing Company
    Inventors: John A. Trela, Mehdy Barekatein, Glen M. Brown, Shengyi Liu
  • Publication number: 20200251712
    Abstract: A battery and related methods are described. The battery can include a plurality of battery cell segments. Each of the battery cell segments can include an anode segment, a cathode segment, and one or more current limiters. The one or more current limiters are configured to conditionally electrically isolate the battery cell segment based on an occurrence of a short circuit within the battery cell segment. The battery can be used to store electrical power and/or provide electrical power to a load.
    Type: Application
    Filed: April 16, 2020
    Publication date: August 6, 2020
    Inventors: Shengyi Liu, John A. Trela, Kamiar J. Karimi
  • Publication number: 20200235438
    Abstract: A battery and related methods are described. The battery can include a plurality of battery cell segments. Each of the battery cell segments can include: a positive temperature coefficient (PTC) material whose resistance increases with temperature, an anode segment, a cathode segment, and one or more current limiters. The one or more current limiters of a battery cell segment are configured to conditionally electrically isolate the battery cell segment based on an occurrence of a short circuit within the battery cell segment. The battery can be used to store electrical power and/or provide electrical power to a load.
    Type: Application
    Filed: April 6, 2020
    Publication date: July 23, 2020
    Inventors: Shengyi Liu, John A. Trela, Kamiar J. Karimi
  • Patent number: 10665849
    Abstract: A battery and related methods are described. The battery can include a plurality of battery cell segments. Each of the battery cell segments can include an anode segment, a cathode segment, and one or more current limiters. The one or more current limiters are configured to conditionally electrically isolate the battery cell segment based on an occurrence of a short circuit within the battery cell segment. The battery can be used to store electrical power and/or provide electrical power to a load.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: May 26, 2020
    Assignee: The Boeing Company
    Inventors: Shengyi Liu, John A. Trela, Kamiar J. Karimi
  • Patent number: 10651514
    Abstract: A battery and related methods are described. The battery can include a plurality of battery cell segments. Each of the battery cell segments can include: a positive temperature coefficient (PTC) material whose resistance increases with temperature, an anode segment, a cathode segment, and one or more current limiters. The one or more current limiters of a battery cell segment are configured to conditionally electrically isolate the battery cell segment based on an occurrence of a short circuit within the battery cell segment. The battery can be used to store electrical power and/or provide electrical power to a load.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: May 12, 2020
    Assignee: The Boeing Company
    Inventors: Shengyi Liu, John A. Trela, Kamiar J. Karimi
  • Publication number: 20180269535
    Abstract: A battery and related methods are described. The battery can include a plurality of battery cell segments. Each of the battery cell segments can include: a positive temperature coefficient (PTC) material whose resistance increases with temperature, an anode segment, a cathode segment, and one or more current limiters. The one or more current limiters of a battery cell segment are configured to conditionally electrically isolate the battery cell segment based on an occurrence of a short circuit within the battery cell segment. The battery can be used to store electrical power and/or provide electrical power to a load.
    Type: Application
    Filed: December 7, 2017
    Publication date: September 20, 2018
    Inventors: Shengyi Liu, John A. Trela, Kamiar J. Karimi
  • Publication number: 20180269463
    Abstract: A battery and related methods are described. The battery can include a plurality of battery cell segments. Each of the battery cell segments can include an anode segment, a cathode segment, and one or more current limiters. The one or more current limiters are configured to conditionally electrically isolate the battery cell segment based on an occurrence of a short circuit within the battery cell segment. The battery can be used to store electrical power and/or provide electrical power to a load.
    Type: Application
    Filed: March 20, 2017
    Publication date: September 20, 2018
    Inventors: Shengyi Liu, John A. Trela, Kamiar J. Karimi
  • Publication number: 20120003560
    Abstract: A fuel cell includes an electrode assembly having an electrolyte between a cathode catalyst and an anode catalyst, and a flow field plate having a channel for delivering a reactant gas to the electrode assembly. The flow field plate includes a channel having a channel inlet. A porous diffusion layer is located between the electrode assembly and the flow field plate. The porous diffusion layer includes a first region near the channel inlet and a second region downstream from the first region relative to the channel inlet. The first region includes a filler material that partially blocks pores of the first region such that the first region has a first porosity and the second region has a second porosity that is greater than the first porosity.
    Type: Application
    Filed: March 18, 2009
    Publication date: January 5, 2012
    Inventors: Jeremy P. Meyers, Michael L. Perry, Carl A. Reiser, Ned E. Cipollini, Wayde R. Schmidt, Gopal R. Krishnan, John A. Trela, Robert M. Darling
  • Publication number: 20060000142
    Abstract: An autothermal reformer or a catalytic partial oxidizer (19) receives flow of desulfurized hydrocarbon fuel from a hydrogen desulfurizer (HDS) (15) through an orifice (13a). A differential pressure transducer (13b) provides a signal (24a) to a fuel-flow differential-pressure schedule (13c) to provide a fuel flow signal (24b) which is (25) subtracted from fuel command (26), to provide a valve position signal 30a from a proportional/integral gain (29), being linearized (58) to control the fuel valve (12). The minimum (59) of actual fuel flow (24b) and fuel flow command (59) is applied to an air/fuel schedule (33). The resulting air flow command is compared with actual air flow (41b) to provide an air flow control signal 48a which is linearized (60) after proportional/integral gain (47) to provide air flow command (48b) to a blower (49). Differential pressure (42b) across an orifice (42a) is provided to a schedule (42c) which converts to the actual air flow feedback (41b).
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Jingyu Cui, Eric Rohrbach, Peter Foley, Timothy Crowley, John Trela