Using A Battery Testing Device Patents (Class 324/426)
  • Patent number: 11327117
    Abstract: An apparatus is provided for measuring the power of electrolytes at different positions of a flow battery by switching six-way valves without reconnecting channels. With the measurements at the positions, weighting is processed to obtain power corresponding to charging statuses for determining accurate power. The charging and discharging of voltage and current of the battery are controlled for constant operations with high efficiency. Consequently, the efficiency of power conversion is improved; energy consumption is reduced; and the battery is always run within a safe power-range for avoiding accidents or damages to the battery. In addition, the present invention is further applicable to a device monitoring the features of a battery unit. The six-way valves online monitor the power at center positions by switching. The values measured at different positions are aimed at the abnormality of the battery unit for processing adjustment or offline replacement to maintain best operation performance.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: May 10, 2022
    Assignee: Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C.
    Inventors: Hung-Hsien Ku, Ning-Yih Hsu, Chin-Lung Hsieh, Yi-Hsin Hu, Qiao-Ya Chen
  • Patent number: 11305668
    Abstract: A controller performs processing including estimating a current degree of deterioration based on battery use history data when it is determined that deterioration diagnosis timing has come, setting a deterioration curve, setting a deterioration straight line, obtaining an elapsed time, obtaining a capacity retention based on the elapsed time and the deterioration straight line, updating representation of the capacity retention on an output unit, and showing an initial value as the capacity retention when it is determined that the deterioration straight line has not been set.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: April 19, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuki Kubo, Yoshihiro Uchida, Junta Izumi, Masaki Uchiyama
  • Patent number: 11296342
    Abstract: A testing device for tubular solid oxide fuel cells (SOFC) includes a housing within which the tubular SOFC is mounted. The housing includes suitable inlets and outlets to allow a fuel gas, such as hydrogen, and an oxidant, such as air or oxygen, to interact with the anode and cathode of the tubular SOFC. In addition, the housing is formed of suitable material for placement in a heating device, such as a tubular furnace or a miniature tubular heater. A temperature sensor and computing device may monitor the temperature of the tubular SOFC in order to control the operation of the tubular heating device. In addition, the device provides electrical current collectors for coupling to the anode and cathode of the SOFC, which may be removable and reusable.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: April 5, 2022
    Assignee: Kent State University
    Inventor: Yanhai Du
  • Patent number: 11249144
    Abstract: To reduce the rate at which a false alternating current (“AC”) loss alarming signal is generated, but at the same time detect an actual AC loss situation in a timely manner, the disclosed method describes an AC line power loss detection and active verification method. If the AC line input voltage dips momentarily lower than a standard sine wave amplitude, the AC line may not be considered lost as long as it still has energy to drive a load. The method inserts a momentary load across the AC line and compares the AC line voltage before and after the extra load is applied. If the AC power is present, this extra loading will increase the AC loading current momentarily, but will not affect the AC line voltage. However, if the AC power is lost, such loading will lower the AC line voltage, indicating a loss of power.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: February 15, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Xiqun Zhu, Sung Kee Baek, Robert Gregory Twiss
  • Patent number: 11239517
    Abstract: A battery assembly module according to one embodiment of the present invention includes an upper cover having coupling holes formed at a plurality of locations therein, a lower cover disposed to correspond to the upper cover and having coupling holes formed at a plurality of locations therein, a plurality of pouch cells to which electrodes are connected to one side and the other side thereof and which store or supply electricity, a plurality of cartridges stacked and accommodating the plurality of pouch cells, and a plurality of caulking pipes fixedly coupling the plurality of cartridges accommodating the pouch cells between the upper cover and the lower cover.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: February 1, 2022
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Ho Jin Park
  • Patent number: 11233280
    Abstract: The present disclosure relates to charging a battery included in a robot. Standard deterioration cost information may be determined and stored based on an ambient temperature, a current rate, and a depth of discharge. This may include determining one standard deterioration cost information from among the stored standard deterioration cost information based on an ambient temperature of the robot and a current rate during an operation of the robot, and determining at least one depth of discharge at which the standard deterioration cost is equal to or less than a predetermined threshold based on the determined one standard deterioration cost information. The operation may be performed by repeating a process of charging and discharging the battery by a charge and discharge method based on the at least one depth of discharge.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: January 25, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Sunok Kim, Jaemin Park, Youngjung Suh, Byounggyo Ahn, Youngkyu Cho
  • Patent number: 11215669
    Abstract: An apparatus and method for measuring a voltage across two ends of each of a plurality of secondary batteries included in a battery module. The battery module further includes a busbar. The busbar is electrically connected between a negative terminal of one of the plurality of secondary batteries and a negative terminal of the battery module. The apparatus includes a plurality of voltage input terminals electrically connected to the two ends of each of the plurality of secondary batteries to receive the voltage across the two ends of each of the plurality of secondary batteries. One of the plurality of voltage input terminals is a reference voltage input terminal electrically separated from a first reference ground. The reference voltage input terminal is electrically connected to a second reference ground connected to one end of the busbar to receive voltage applied to the second reference ground.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: January 4, 2022
    Inventor: Dong-Hyeon Kim
  • Patent number: 11215672
    Abstract: The present invention relates to the technical field of battery detection, and in particular, to a battery detection method, comprising: step S1, selecting, within a preset voltage interval, a preset number of voltage calibration values according to a rated parameter of a battery; step S2, performing charge and discharge tests on the battery, and recording a coulometer reading and a charge and discharge curve, corresponding to each voltage calibration value, of the battery; and step S3, calibrating the charge and discharge curve on the basis of the coulometer readings. The technical solution can acquire an accurate battery charge and discharge curve, is not limited by the calibration platform provided by the manufacture, can adapt to various battery models, and has high reliability and real-time performance.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: January 4, 2022
    Inventors: Tao Zeng, Yong Wang
  • Patent number: 11211812
    Abstract: A controller for managing a battery pack includes: a detection terminal, for transmitting an enable signal when values of battery parameters for the battery pack satisfy a sleep condition, where the enable signal enables the detection circuit to detect whether the battery pack is connected to a load and whether the battery pack is connected to the charger; and a receiving terminal, for receiving a detection result transmitted by the detection circuit. The detection result indicates whether the battery pack is connected to at least one of the load and charger. The controller controls the battery pack to enter a sleep mode of the sleep modes based on the detection result. The controller also includes a control terminal, for transmitting a control signal to control an on/off state of a charging switch and/or a discharging switch. The control signal is generated by the controller based on the detection result.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: December 28, 2021
    Assignee: O2Micro Inc.
    Inventors: Yingguo Zhang, Guoyan Qiao, Fu-Jen Hsieh, Chia-Ming Chang, Chih-Chung Chou, Hua-Yi Wang
  • Patent number: 11209489
    Abstract: An ECU calculates, based on a prescribed active material model, a surface stress of an anode active material from the lithium amount inside the anode active material, and calculates, based on the calculated surface stress, an open circuit potential change amount of the anode active material relative to an open circuit potential. The ECU corrects an anode open circuit potential calculated by a deterioration estimation process, using the open circuit potential change amount. The ECU calculates three deterioration parameters so that the measured OCV curve substantially matches the estimated OCV curve specified based on the corrected anode open circuit potential. The open circuit potential is an open circuit potential of the anode active material in the state in which a surface stress is not generated.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: December 28, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kenji Takahashi
  • Patent number: 11204391
    Abstract: A method and system for monitoring a charge capacity of a battery includes determining a predicted charge capacity and a first uncertainty parameter based upon the current, voltage, and temperature of the battery, wherein the predicted charge capacity is determined by executing a charge capacity degradation model. A measured charge capacity and an associated second uncertainty parameter of the battery are also determined, by executing a charge capacity update routine. A charge capacity estimate for the battery is determined based upon the predicted charge capacity and the measured charge capacity, and an updated uncertainty parameter for the charge capacity estimate is determined based upon the first and the second uncertainty parameters. An estimated covariance parameter, and a covariance ratio are determined based upon the updated uncertainty parameter and the estimated covariance parameter.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: December 21, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Charles W. Wampler, Justin R. McDade
  • Patent number: 11203273
    Abstract: A method and apparatus for determining a state of health of a battery in a vehicle includes determining a state of charge of the battery; determining a battery temperature and a cranking temperature; obtaining a cranking signal from the battery when the battery is discharged during cranking of a combustion engine of the vehicle; determining one or more cranking type classes based on the determined battery temperature and the determined cranking temperature; determining battery parameters from the cranking signal; determining the state of health of the battery from the battery parameters, a vehicle identifier and historical battery parameters determined in a historic state preceding the current state; and outputting the state of health. Determining the battery parameters from the cranking signal includes: obtaining an intermediate cranking signal based on the cranking signal and a window function; and determining the battery parameters from the filtered cranking signal.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: December 21, 2021
    Assignee: ANWB B.V.
    Inventor: Jimmy Otjens
  • Patent number: 11201358
    Abstract: A system for measuring a heat response of a cell during a thermal runaway event includes a housing. An insulation is positioned within the housing. A calorimeter is positioned within the insulation and the housing. The calorimeter is configured to have the cell positioned therein. The calorimeter is configured to measure a temperature increase of the cell, one or more components of the calorimeter, or a combination thereof during the thermal runaway event of the cell. A total energy yield of the thermal runaway event is configured to be determined based at least partially upon the temperature increase. A ratio is configured to be determined based at least partially upon the temperature increase. The ratio includes energy released through a casing of the cell during the thermal runaway event vs. energy released through ejecta material from the cell during the thermal runaway event.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: December 14, 2021
    Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Eric C Dimpault-Darcy, John J. Darst, William Q. Walker, Steven L. Rickman, Natalie N. Anderson, Christiaan Khurana, Bruce L. Drolen, Gary Bayles, Zoran Bilc
  • Patent number: 11193980
    Abstract: An inspection method of a present electrical storage device includes: constituting a circuit with the electrical storage device being charged and a power supply, and passing a current by the power supply to the circuit in a direction of charging or discharging the electrical storage device; and in passing the current, determining the quality of the electrical storage device based on a converging state of the passing current. In passing the current, an output voltage of the power supply is changed from an initial value with the passage of time.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: December 7, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kiwamu Kobayashi, Takeshi Goto
  • Patent number: 11189866
    Abstract: According to an embodiment, a battery pack comprises a battery cell including a positive electrode and a negative electrode and configured to generate an electromotive force via the positive electrode and the negative electrode, a plurality of first sub paths configured to connect the positive electrode to a sensing circuit of an electronic device to which the battery pack is connected, a plurality of second sub paths configured to connect the negative electrode to the sensing circuit, a power line configured to connect the positive electrode and the negative electrode to at least one of a system of the electronic device or a charging circuit of the electronic device, a first switch configured to selectively connect at least one of the plurality of first sub paths, selected depending on a voltage applied to the positive electrode and the negative electrode, to the sensing circuit, and a second switch configured to selectively connect at least one of the plurality of second sub paths, selected depending on the
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: November 30, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungsoo Moon, Chihyuan Lin, Sunggeun Yoon
  • Patent number: 11180051
    Abstract: A vehicle includes a controller and a display. The controller is configured to calculate a capacity retention (a degree of deterioration) based on measurement data of a main battery. The controller estimates an upper limit value and a lower limit value of an error (range) of the calculated capacity retention. The controller calculates a capacity retention range including the upper limit value Wu and the lower limit value. The controller has the display show the calculated capacity retention range.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: November 23, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuki Kubo, Junta Izumi, Yoshihiro Uchida, Masaki Uchiyama
  • Patent number: 11175345
    Abstract: A method for detecting an operational status of a battery including a plurality of cells includes obtaining static voltages and dynamic voltages of the cells and determining the operational status of the battery based on the static voltages and dynamic voltages.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: November 16, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Juncheng Zhan, Lei Wang, Wentao Wang, Dayang Zheng, Hao Luo
  • Patent number: 11171585
    Abstract: A motor controller used for driving a motor is provided. The motor controller includes a driving circuit, a control unit, an operational amplifier, a comparator, an inverter, a multiplexer, a first resistor, and a second resistor. The first and second resistors are mounted on a printed circuit board. By changing the resistance of the first resistor and the resistance of the second resistor, it is capable of changing the driving direction of the motor.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: November 9, 2021
    Assignee: Global Mixed-mode Technology Inc.
    Inventor: Guang-Nan Tzeng
  • Patent number: 11169214
    Abstract: Systems, methods, and computer media for battery system management and non-linear estimation of battery state of charge are provided herein. Battery data is received for a time period over which a battery system has operated. The battery data represents the actual performance of the battery system over the time period. Sub-periods of charging or discharging can be identified in the time period. For the sub-periods of time, a curve can be fit to the battery data. Using the curves for the battery data for the sub-periods of time, an expected performance of the battery system, over a range of states-of-charge, can be determined. Operating instructions for the battery system can be provided based on the expected performance.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: November 9, 2021
    Assignee: Battelle Memorial Institute
    Inventors: Alasdair James Crawford, Vilayanur Venkataraman Viswanathan, Patrick Joseph Balducci, Trevor D. Hardy, Di Wu, Michael C. W. Kintner-Meyer
  • Patent number: 11165262
    Abstract: An apparatus and method for protecting each of a plurality of cell stacks included in a battery pack from overcharge. The overcharge prevention apparatus prevents the overcharge of a plurality of cell stacks connected in series within a high current path. The overcharge prevention apparatus includes a voltage measuring unit configured to measure voltage of each cell stack, and generate a first monitoring signal indicating the measured voltage, a current regulating unit configured to selectively provide a bypass path to each cell stack, and a controller connected to the voltage measuring unit and the current regulating unit allowing communication. The controller is configured to control the current regulating unit based on the first monitoring signal from the voltage measuring unit.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: November 2, 2021
    Inventors: Jae-Chan Lee, Soo-Ryoung Kim, Hyun-Sik Kim, Hyeon-Jin Song, Won-Tae Lee, Yang-Lim Choi
  • Patent number: 11160311
    Abstract: This inhalation component generation device comprises: a load which vaporizes or atomizes an inhalation component source using power from a power supply; and a control unit. The control unit comprises: a voltage sensor which uses a predefined correlation to convert the analog voltage value of a power supply to a digital voltage value and outputs the digital voltage value; and a power control unit which controls the supply of power from the power supply to the load on the basis of the digital voltage value. The control unit is configured to be capable of calibrating the correlation on the basis of changes in the digital voltage value or the analog voltage value obtained during charging of the power supply.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: November 2, 2021
    Assignee: JAPAN TOBACCO INC.
    Inventors: Takeshi Akao, Hajime Fujita, Manabu Yamada
  • Patent number: 11152806
    Abstract: Disclosed is a method for identifying a battery type and/or a battery user. Measuring circuitry may be used to collect battery parameters that may be analyzed by control circuitry to create an adaptive charge profile that is applied to a battery by charging circuitry. Battery parameters may be recorded in a battery use signature. Logic may be used to process a battery use signature and identify a single user across multiple battery operated devices and/or discriminate between multiple users of a device. In some cases, battery use signature may be used to identify battery information including the make, model, and lot from which the battery was manufactured.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: October 19, 2021
    Assignee: Qnovo Inc.
    Inventors: Nadim Maluf, Fred Berkowitz
  • Patent number: 11152650
    Abstract: A safety evaluation method according to the present disclosure includes preparing a sample for secondary battery electrode evaluation in which a short circuit will occur by contact between components included in the sample, applying a predetermined pressure that will cause the contact between the components to an area of the sample set as a secondary battery internal short circuit simulation contact area, applying a current between I probes in contact with the sample, obtaining resistance by measuring a potential difference between V probes which are separate from the I probes, obtaining a graph of a change in resistance with a change in distance between the V probes, calculating a short circuit resistance of the area from y-intercept of the graph, and predicting a heat generation amount of the area from the short circuit resistance.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: October 19, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Bum-Young Jung, Hee-Min Kim
  • Patent number: 11152919
    Abstract: An example of an apparatus includes a bias circuit having first and second bias circuit outputs. The apparatus also includes a comparator having first and second comparator inputs. The apparatus also includes a first capacitor coupled between the second comparator input and the second bias circuit output. The apparatus also includes a first switch coupled between the second comparator input and the second bias circuit output. The apparatus also includes a second switch coupled between the first bias circuit output and an input terminal, a third switch coupled between the input terminal and the first comparator input, and a fourth switch coupled between the first bias circuit output and the first comparator input. The apparatus also includes a second capacitor coupled between the first comparator input and the second bias circuit output.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: October 19, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Marc Edric Davis-Marsh, Hakan Oner, Tawen Mei
  • Patent number: 11150305
    Abstract: A method of estimating the residual energy of a battery. The method comprises determining the battery's state of charge (SOC) and dischargeable capacity to determine the battery's state of energy (SOE), determining the battery's reference dischargeable energy (Eref) and total dischargeable energy (Etot), and comparing the state of energy to the total dischargeable energy to find the residual energy of the battery. The various functions of the method use battery current, cell temperature, and state of health (SOH) as variables for consideration.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: October 19, 2021
    Assignee: KARMA AUTOMOTIVE LLC
    Inventors: Ali Jokar, Suvrat Ramasubramanian, Jing Hong
  • Patent number: 11143706
    Abstract: A battery capacity estimation method includes a first step and a second step. The first step is a step of obtaining image data of a Nyquist diagram drawn by a predetermined method, based on a Nyquist plot obtained by a predetermined AC-IR measurement. The second step is a step of obtaining a battery capacity estimate value of a battery to be measured by inputting the image data of the Nyquist diagram obtained in the first step into an input layer of a pre-trained neural network model.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: October 12, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junta Izumi, Masahiko Mitsui, Juni Yasoshima
  • Patent number: 11139664
    Abstract: A battery protector includes analog frontend circuitry coupled to a hibernate mode input terminal that is one of configured to couple to a high voltage connector terminal when the system is connected to an external load or charger to define an active mode and configured to float when the system is disconnected from the external load or charger to define a hibernate mode. The analog frontend circuitry is configured to provide a signal at an output thereof to distinguish, in the absence of an external ground connection, between connected and floating conditions for the hibernate mode input terminal. Digital logic is coupled with the output of the analog frontend circuitry, the digital logic providing a digital signal to control whether the battery protector is operating in the active mode or the hibernate mode based on the signal at the output of the analog frontend circuitry.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 5, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Abhijeet Kumar Singh, Manish Parmar, Dipankar Mitra, Vv Shyam Prasad, Mahesh Kv
  • Patent number: 11125828
    Abstract: Various embodiments include a method for determining the age of an electrochemical energy storage unit comprising: referring to a first open-circuit voltage curve of the electrochemical energy storage unit dependent upon the state of charge of the electrochemical energy storage unit as a reference; ascertaining a second open-circuit voltage curve of the electrochemical energy storage unit dependent upon the state of charge of the electrochemical energy storage unit; and determining the age of the electrochemical energy storage unit by comparing the first and second open-circuit voltage curves.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: September 21, 2021
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Christopher Betzin, Holger Wolfschmidt
  • Patent number: 11121412
    Abstract: A safety evaluation method according to the present disclosure includes preparing a sample for secondary battery electrode evaluation in which a short circuit will occur by contact between components included in the sample, applying a predetermined pressure that will cause the contact between the components to an area of the sample set as a secondary battery internal short circuit simulation contact area, applying a current between I probes in contact with the sample, obtaining resistance by measuring a potential difference between V probes which are separate from the I probes, obtaining a graph of a change in resistance with a change in distance between the V probes, calculating a short circuit resistance of the area from y-intercept of the graph, and predicting a heat generation amount of the area from the short circuit resistance.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 14, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Bum-Young Jung, Hee-Min Kim
  • Patent number: 11114708
    Abstract: A method and apparatus for controlling a temperature of a battery pack, in which, when the battery pack is in an extremely low temperature state during charging/discharging, a PWM signal having a duty ratio value that increases as the temperature increases is outputted to intermittently drive a heat generating unit so that the battery pack stably increases in temperature.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: September 7, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seung Hwan Kim, Dong Hyun Kim
  • Patent number: 11110816
    Abstract: A condition-based maintenance method is provided for a primary electrical system of a vehicle. The method includes obtaining a plurality of expected parametric values representing a state-of-health (SOH) of the primary electrical system of the vehicle; starting a series of operations to exercise a plurality of operating modes of the vehicle; continuously reading a plurality of voltage values from a battery voltage output of a diagnostic connector of the vehicle, performing analysis on the plurality of voltages values to generate current parametric values of SOH of the primary electrical system; based on comparison between the expected parametric values and the current parametric values, determining whether a condition-based maintenance is required; and, after determining that a condition-based maintenance is required, present a maintenance alert to an operator of the vehicle.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: September 7, 2021
    Inventor: Guy Thomas Rini
  • Patent number: 11077921
    Abstract: A pressure tolerant energy system may comprise a pressure tolerant cavity and an energy system enclosed in the pressure tolerant cavity configured to provide electrical power to the vehicle. The energy system may include one or more battery cells and a pressure tolerant, programmable management circuit. The pressure tolerant cavity may be filled with an electrically-inert liquid, such as mineral oil. In some embodiments, the electrically-inert liquid may be kept at a positive pressure relative to a pressure external to the pressure tolerant cavity. The energy system may further comprise a pressure venting system configured to maintain the pressure inside the pressure tolerant cavity within a range of pressures. The pressure tolerant cavity may be sealed to prevent water ingress.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: August 3, 2021
    Assignee: HADAL, INC.
    Inventors: James Morash, Jonathan Pompa, Ben Kfir, Robert S. Damus, Richard J. Rikoski
  • Patent number: 11081892
    Abstract: An electronic or electromechanical system including at least one electrical energy source, a first circuit capable of operating in at least two operating modes, one of which corresponds to the stopping of the application circuit, and a circuit for transmitting the electrical energy from the energy source to the application circuit, the transmission circuit being further capable of determining a first value of the maximum instantaneous electric power capable of being supplied by the energy source, of determining a second value of the instantaneous electric power consumed by the application circuit in at least one of the operating modes, and of storing the first and second values or of selecting the operating mode of the application circuit from among said at least two operating modes based on the first and second values.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: August 3, 2021
    Assignees: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, SAFRAN
    Inventors: Loïc Sibeud, Romain Grezaud
  • Patent number: 11073564
    Abstract: A system and method for monitoring characteristics of an electric energy device includes generating an external short from the electric energy device. The external short occurs at a known distance from a sensor and has at least one known external resistance. The received signal representing change in electromagnetic field due to the applied external short may be analyzed to determine a signal parameter that is then analyzed in comparison to a lookup table, based on the known conditions inclduig distance, temperature and the external resistance. The output of this analyses in comparison with expected values may be utilized to identify a characteristic of the energy device.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: July 27, 2021
    Assignee: California Institute of Technology
    Inventors: Farshid Roumi, Mahshid Roumi
  • Patent number: 11063448
    Abstract: Methods and a system for dynamically modifying charging settings for a battery assembly are described. A first usage value and a second usage value for the battery assembly are received. A usage difference value for the battery assembly is determined by comparing the first usage value to the second usage value. The usage difference value is compared to a plurality of battery usage ranges. Each battery usage range is associated with a bin count, a different voltage offset, and a different current offset. The bin count of one of the plurality of battery usage ranges is updated based on the comparison. The bin counts of the plurality of battery usage ranges are analyzed to determine a largest bin count and a respective battery usage range. The battery assembly is charged with a voltage offset and a current offset corresponding to the respective battery usage range with the largest bin count.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: July 13, 2021
    Assignee: Zebra Technologies Corporation
    Inventors: Christopher P. Klicpera, Michael Robustelli
  • Patent number: 11063322
    Abstract: A circuit body includes: a plurality of conductors and a substrate having flexibility and provided with the conductors, in which the substrate includes a battery wiring portion which is routed along each row of electrodes and where one ends of the conductors are respectively connected to bus bars, and a pair of connector connecting portions in which the other ends of the conductors provided in respective battery wiring portions are located, the pair of connector connecting portions include a connector mounting portion where the pair of connector connecting portions are guided from opposite directions, and in the connector mounting portion, the other ends of the conductors of the pair of the connector connecting portions are alternately arranged and an arrangement order corresponds to the potential order of the bus bars connected to the conductors.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: July 13, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Takao Ota, Junya Iwata
  • Patent number: 11047918
    Abstract: A method for correcting a SOH, an apparatus, a battery management system and a storage medium are provided. The method includes obtaining a relationship curve between a ratio of an accumulated charge/discharge capacity variation and a corresponding voltage-parameter variation of a battery cell and a voltage parameter itself; determining a valid peak point on the relationship curve; determining a SOH calibration value corresponding to voltage parameter datum at the valid peak point; correcting a current SOH according to the SOH calibration value. The estimation accuracy of the SOH can be improved according to this method.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: June 29, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Mingshu Du, Shichao Li, Jian Ruan, Shenzhi Tang, Yanhua Lu, Wei Zhang
  • Patent number: 11025072
    Abstract: Systems and methods for operating an electric energy storage system are described. The systems and methods include ways of coupling electric energy storage cell stacks to an electric conductor or bus. The coupling is performed to reduce current flow through contactors and to increase a life span of the contactors.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: June 1, 2021
    Assignee: ESS Tech, Inc.
    Inventors: Aaron Vanderzanden, Steve Ernst
  • Patent number: 11004996
    Abstract: Provided herein are systems and methods for regenerative braking. A method for regenerative braking may comprise converting mechanical energy from a braking event to electrical energy. The electrical energy may activate a photon battery comprising phosphorescent material.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: May 11, 2021
    Assignee: NIMBUS ENGINEERING INC.
    Inventor: Alex Diggins
  • Patent number: 11002797
    Abstract: The fault diagnosis circuit includes a first line including a first resistor, having one end connected to the positive (+) terminal of a battery, and having the other end connected to a first input unit of an analog to digital converter (ADC); a second line including a second resistor, having one end connected to the positive (+) terminal of the battery, and having the other end connected to a first input unit of a comparator; and a third line including a third resistor, having one end connected to the negative (?) terminal of the battery, having a first other end connected to a second input unit of the ADC, and having a second other end connected to a second input unit of the comparator. A fault in a battery management system can be efficiently diagnosed using a smaller number of elements.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 11, 2021
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Jae-Seong Park, Seulkirom Kim, Jae-Min Park, Yeong-Geun Yeo, Sang-Ho Lee, Jong-Won Choi
  • Patent number: 10971744
    Abstract: Provided is a method for inspecting a current leak of a fuel cell, which is provided with an anode electrode, a cathode electrode, and an electrolyte membrane sandwiched between the anode electrode and the cathode electrode, the method including: a first process in which a first voltage, which is a limit voltage of the electrolyte membrane, is applied to the fuel cell; a second process in which a second voltage, which is lower than the first voltage, is applied to the fuel cell after the first process; a third process in which a third voltage, which is lower than the second voltage, is applied to the fuel cell after the second process; and a determination process in which a value of a current flowing through the fuel cell in the third process is detected, and whether the detected current value is lower than a prescribed current value is determined.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: April 6, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaaki Kishimoto, Hiroyuki Yamagishi, Hiroshi Sakai
  • Patent number: 10967820
    Abstract: A power source system includes a first power source, a power generator, a first electrical load, a second electrical load, a second power source, and a charge/discharge switch provided between the second power source and the power generator. The charge/discharge switch is controlled into a closed state to electrically connect the power generator to the second power source, when an amount of charge of the second power source is less than a charge request threshold, the power generator is in a power generating state, and an amount of power generated by the power generator is equal to or more than a total power requirement as a total sum of respective amounts of power required by the second power source, the first electrical load, and the second electrical load.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 6, 2021
    Assignee: DENSO CORPORATION
    Inventor: Hideki Kawamura
  • Patent number: 10957943
    Abstract: A jig device for inspecting quality of a secondary battery, which fixes the secondary battery and inspects quality of the secondary battery, is provided in which the jig device includes a jig base having a seating hole, a fixed module mounted on the jig base at one side of the seating hole, a first gliding module mounted on the jig base at a side opposite to the fixed module and glidable toward the fixed module, and a support part extending across the seating hole. A masking block is mounted on one or more portions of the fixed module and the first gliding module, which comes into contact with an edge of the secondary battery to fix the secondary battery. The first gliding module is detachable from the jig base, and the support part is separable from the fixed module and the first gliding module.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 23, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seok Jin Kim, Sang Hyun Koo, Cha Hun Ku
  • Patent number: 10946765
    Abstract: A vehicle and method are provided in which deterioration of a battery is controlled. The method includes detecting deterioration severity of the battery and determining whether the deterioration severity is equal to or greater than a reference value. A cause of battery deterioration is determined when the deterioration severity is equal to or greater than the reference value. The method further includes determining whether the cause of the battery deterioration is vehicle driving and reducing an SOC management range of the battery when the cause of deterioration of the battery is charging/discharging due to vehicle driving. The deterioration cause of the battery is determined as a state of the vehicle left unattended and the central SOC of the battery is adjusted when the cause of deterioration of the battery is not charging/discharging due to vehicle driving.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: March 16, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Man Jae Park, Joong Woo Lee, Myung Won Lee
  • Patent number: 10948547
    Abstract: A battery monitoring system includes a current sensor and a voltage sensor coupled to a battery cell. It also includes a microcontroller that opportunistically computes many estimates of the cell's ohmic resistance and filters these estimates to arrive at a stable value. Each estimate is traditionally computed from a delta change in voltage divided by delta change in current measured before and after a significant change in current magnitude. An improvement in accuracy of each resistance estimate is achieved by only computing an estimate if the rate of change of voltage and the rate of change of current exhibited by the values making up the delta voltage and delta current are tightly consistent and of the same polarity. This approach significantly minimizes errors induced in estimates not preselected in this manner by the different and also asynchronous sample rates of the cell's voltage and current.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: March 16, 2021
    Assignee: LG Chem, Ltd.
    Inventor: Robert Dale Busser
  • Patent number: 10948544
    Abstract: A battery safety identifying method is provided. The method includes the following steps. A voltage drop and a voltage drop rate are detected when a battery is abnormal. A duration time of the voltage drop and a voltage recovery ratio are detected when the battery is abnormal. A surface temperature or a temperature rise rate is detected when the battery is abnormal. A plurality of hazard levels of battery abnormality and at least one protection mechanism are set according to the voltage drop, the voltage drop rate, the voltage recovery ratio and the surface temperature or the temperature rise rate.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: March 16, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chein-Chung Sun, Chun-Hung Chou, Deng-Tswen Shieh, Che-Wei Chu
  • Patent number: 10921376
    Abstract: A sensor apparatus (10) for monitoring at least one battery cell (20) of a battery system (100), having a sensor element (11) for detecting at least one state variable of the battery cell (20), at least one electrically and/or thermally conductive connecting element (12) connected to the sensor element (11) so that the sensor element can be connected to the battery cell (20) and to an electronic unit (30) of the battery system (100), wherein the connecting element (12) is formed as a flexible printed circuit board (12).
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: February 16, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Christian Schmid-Schoenbein, David Rychtarik, Hang Yu, Walter Jasch
  • Patent number: 10921381
    Abstract: The system may be configured to perform operations including receiving battery information, such as voltage data, temperature data, battery-specific data, and/or application-specific data; and displaying at least a portion of such data on a graphical user interface on a display screen. The operations may further include analyzing at least a portion of the battery information to monitor or determine battery health and performance, and displaying the results of such analysis on the display screen.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: February 16, 2021
    Assignee: NORTHSTAR BATTERY COMPANY, LLC
    Inventors: Don Karner, Frank Fleming, Ulf Krohn, Christer Lindkvist
  • Patent number: 10910621
    Abstract: This disclosure details electrical modules that include integrated bus bar locating and separating features. An exemplary electrical module may include a first housing, a second housing, and a bus bar coupon. The first housing, the second housing, or both may include one or more locating and separating features. The bus bar coupon may be automatically separated into a plurality of individual bus bars by the separating features as the first and second housings of the electrical module are moved together. The electrical module could be utilized within electrified vehicle battery packs or various other electrified components.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 2, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Wesley Edward Burkman
  • Patent number: 10908223
    Abstract: An apparatus which is an embodiment of the present invention includes a first estimator, a second estimator and a calculator, and evaluates the present safety of a battery. The first estimator estimates a present deterioration state and a present SOC of the battery. The second estimator estimates, on the basis of first reference data, a calorific value of the battery in an occasion when an external temperature changes. The first reference data is selected as corresponding to the first battery from a plurality of reference data at least indicating relationship between a calorific value of a secondary battery and an external temperature on the basis of the estimated deterioration state and SOC. The calculator calculates, on the basis of the calorific value of the battery, a safety index regarding a temperature of the battery in the occasion when the external temperature changes.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: February 2, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yumi Fujita, Tomokazu Morita, Nobukatsu Sugiyama