Battery Monitoring Patents (Class 702/63)
  • Patent number: 10656209
    Abstract: A battery managing apparatus includes a battery controller configured to determine a time when a battery enters a steady state based on a charge and discharge current of the battery. The apparatus further includes a time controller configured to wake up the battery controller based on the time when the battery enters the steady state. The battery controller is configured to control the battery in response to the time controller waking up the battery controller.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: May 19, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jinyong Jeon
  • Patent number: 10656215
    Abstract: A short circuit detection device has a voltage sensor and a control unit. The voltage sensor detects a voltage of a secondary battery. The control unit determines whether a first voltage value of the voltage of the secondary battery discharging to a load is below a threshold value. Upon determining the first voltage value is below the threshold value, the control unit adjusts the load to reduce the current that flows from the secondary battery to the load. The control unit then determines whether a second voltage value of the voltage of the secondary battery after the adjustment of the load is less than the first voltage value. Upon determining the second voltage value is less than the first voltage value, control unit recognizes that an internal short circuit of the secondary battery has occurred.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: May 19, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Atsushi Horai, Gentaro Kano, Hiroyuki Tanaka
  • Patent number: 10656213
    Abstract: An internal resistance calculation device is provided with: a voltage obtaining portion that obtains the voltage of a secondary battery; a current obtaining portion that obtains the current of the secondary battery; a switching determination portion that determines the presence or absence of switching between charging and discharging of the secondary battery based on the obtained current; an identification portion that identifies a waiting time based on a boundary frequency range in which the diffusion impedance arising from the process of diffusion of a predetermined ion contributes to the impedance of the secondary battery in the impedance spectrum of the secondary battery; and a resistance calculation portion that calculates the internal resistance of the secondary battery based on the voltage and the current obtained after the identified waiting time in a case where it is determined that switching between charging and discharging of the secondary battery is present.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 19, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hiroaki Takechi, Tomomi Kataoka, Youhei Yamaguchi, Aoi Hatanaka
  • Patent number: 10651450
    Abstract: A conductive module includes: a first conductive member electrically connected to a battery cell; a second conductive member electrically connecting a battery monitoring unit to the first conductive member; a circuit protection member arranged between the first conductive member and the second conductive member; a first electrical connection structural body; a second electrical connection structural body electrically connecting the second conductive member and the circuit protection member; and a housing member. The second electrical connection structural body includes a linking portion, which is a part that extends in an intersecting direction and physically and electrically connects an electrical connection portion of the second conductive member, and enables the second conductive members of all the conductive modules to be arranged side by side along the intersecting direction.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: May 12, 2020
    Assignee: YAZAKI CORPORATION
    Inventor: Yutaro Okazaki
  • Patent number: 10644359
    Abstract: A storage battery controlling device according to an embodiment of the present invention includes: a battery characteristic estimator configured to calculate an internal resistance of a secondary battery and a function indicating relationship between an open circuit voltage of the secondary battery and a state of charge or an amount of a charge charged of the secondary battery therein, on the basis of data of a temperature, a voltage and a current of the secondary battery which are measured in charging or discharging the secondary battery; and an input/output performance value calculator configured to calculate an inputtable/outputtable power amount of the secondary battery on the basis of the internal resistance and the function calculated by the battery characteristic estimator.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 5, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yumi Fujita, Tomokazu Morita, Ena Ishii, Nobukatsu Sugiyama
  • Patent number: 10641834
    Abstract: A method for estimating a state of energy of a battery, comprising the steps of estimating a state of charge of the battery, determining a discrepancy between the state of charge and the state of energy as a function of the state of charge, computing the state of energy as a function of the estimated state of charge and of the determined discrepancy. Also a battery including apparatus configured to implement the method is provided.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: May 5, 2020
    Assignee: Sirbus SAS
    Inventors: Benoit Ferran, Clément Dinel
  • Patent number: 10634725
    Abstract: Systems and methods for controlling Battery Energy Storage Systems (BESSs), including determining historical minimum state of charge (SOC) for peak shaving of a previous day based on historical photovoltaic (PV)/load profiles, historical demand charge thresholds (DCT), and battery capacity of the BESSs. A minimum SOC for successful peak shaving of a next day is estimated by generating a weighted average based on the historical minimum SOC, and optimal charging/discharging profiles for predetermined intervals are generated based on estimated PV/load profiles for a next selected time period and grid feed-in limitations. Continuous optimal charging/discharging functions are provided for the one or more BESSs using a real-time controller configured for overriding the optimal charging/discharging profiles when at least one of a high excess PV generation, a peak shaving event, or a feed-in limit violation is detected.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: April 28, 2020
    Assignee: NEC Corporation
    Inventors: Babak Asghari, Ratnesh Sharma, Mohammad Ehsan Raoufat
  • Patent number: 10625617
    Abstract: A method of estimating a battery life includes: for a secondary battery having a degradation rate R when X days have elapsed after initial charge of the secondary battery, calculating a degradation estimation value (X+Y) days after the initial charge from degradation master data, the degradation master data being identified with use of conditions of temperature T provided for the calculation and a battery state S provided for the calculation; and deriving number of elapsed days Xcorr giving the degradation rate R based on the identified degradation master data, and calculating the degradation estimation value (Xcorr+Y) days after the initial charge from the identified degradation master data.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: April 21, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yukio Miyaki
  • Patent number: 10630084
    Abstract: Battery management systems and methods for optimizing and extending the service life of a battery generally include subjecting the battery to a test cycle that appropriately sets the state of charge for the battery to less than the nominal capacity of the battery, i.e., to less than 100% state of charge. The state of charge of other batteries in the system not being tested can be increased to insure that the system battery capacity is not degraded during the test cycle. Periodic testing of the battery and adjusting the state of charge maintains an optimal state of charge as the battery ages. Batteries that do not meet the required capacity can be readily identified and replaced on demand.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 21, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Richard J. Fishbune, Xing Li, Robert B. Schlak
  • Patent number: 10620273
    Abstract: A method and apparatus for estimating a state of health of a battery pack and a computer-readable medium are provided, the method including: detecting changes of health indicators of every battery unit in the battery pack, determining whether the battery unit has a correction opportunity for a state of charge thereof during a predetermined period of time based on the detected changes of the health indicators, calculating corrected states of charge and one or more of cumulative changes in capacity between every two correction opportunities of a battery unit having two or more correction opportunities, obtaining a first estimated state of health of the battery unit having two or more correction opportunities based on the above data and estimating the state of health of the battery pack based on the first estimated state of health of the battery unit having two or more correction opportunities.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: April 14, 2020
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Shenzhi Tang, Yanhua Lu
  • Patent number: 10613567
    Abstract: A power supply is disclosed for an industrial control system or any system including a distributed power supply network. In embodiments, the power supply comprises: a battery module including a battery cell and a battery monitor configured to monitor the battery cell; and a self-hosted server operatively coupled with the battery module, the self-hosted server being configured to receive diagnostic information from the battery monitor and provide network access to the diagnostic information. In implementations, the diagnostics stored by the self-hosted server can be broadcast to or remotely accessed by enterprise control/monitoring systems, application control/monitoring systems, or other remote systems via a secured network (e.g., secured access cloud computing environment).
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: April 7, 2020
    Assignee: BEDROCK AUTOMATION PLATFORMS INC.
    Inventors: Albert Rooyakkers, James C. Calvin
  • Patent number: 10615435
    Abstract: A measuring routine for monitoring the operating state of a fuel cell arrangement consisting of at least one fuel cell, in which the fuel cell arrangement has an operating load connected to it, at least one power amplifier for supplying at least one low-frequency signal (se1(t), se2(t)) is further provided, the output of which is coupled to the fuel cell arrangement, and having an evaluation device, likewise coupled to the fuel cell arrangement, for capturing a signal response sai(t) to the at least one supplied signal sei(t), wherein the fuel cell arrangement (1) has two or more individual signals (se1(t), se2(t)) at different frequencies (fe1, fe2) supplied to it and the evaluation device is set up to capture the signal response sai(t) for selected frequencies (fa3, fa4) of the intermodulation products (mfe1+/?nfe2) of the supplied individual signals (se1(t), se2(t)) and to measure at least the amplitude of said signal response in order to obtain at least one output signal (SAZ, S?AZ, S?AZ).
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: April 7, 2020
    Assignee: AVL List GmbH
    Inventors: Bernd Eichberger, Viktor Hacker, Stephan Weinberger, Reinhard Klambauer
  • Patent number: 10608574
    Abstract: A first battery pack that is switchable between a first configuration having a first rated output voltage that corresponds to a first power tool rated operating voltage such that the first battery pack enables operation of the first power tool, and a second configuration having a second rated output voltage that corresponds to a second power tool rated operating voltage such that the first battery pack enables operation of the second power tool.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 31, 2020
    Assignee: Black and Decker, Inc.
    Inventors: Daniel J. White, Matthew J. Velderman, Michael Varipatis, Andrew E. Seman, Nathan J. Osborne, Ryan Klee, Bhanuprasad Gorti
  • Patent number: 10608453
    Abstract: An advanced mobile energy storage device includes an energy storage component for the storage of electrical energy and characterized by a state of charge representative of an amount of energy stored within the energy component and by an energy storage rate into and out of the energy storage component. At least one power input transfers electrical energy into the device for storage in the energy storage component. At least one power output transfers electrical energy out of the device from the energy storage component. A processor determines, for indication to a user, an estimate of time until the state of charge at least reaches one or more particular levels, the estimate determined at least from the state of charge in conjunction with the energy storage rate. The device can network with an external computing device and can generate solar adjustment information.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: March 31, 2020
    Assignee: PTGHS, LLC
    Inventors: Charles Partee, Kevin Magenis, Brian Magenis, John Vicars, Mike Nakamura
  • Patent number: 10598735
    Abstract: A method and apparatus for estimating a battery life are provided. The apparatus includes a battery information collector, a model determiner, and a battery life estimator. The battery information collector is configured to collect battery information from a battery. The model determiner is configured to select a battery degradation model representing pattern information corresponding to the battery information. The battery life estimator is configured to estimate battery life information based on the selected battery degradation model.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: March 24, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sun-Jae Lee
  • Patent number: 10591550
    Abstract: A secondary-battery monitoring device includes: a use-state memory device that stores a transition of a load parameter indicating a use state of a secondary battery; and a battery capacity prediction device that predicts a temporal change of a battery capacity of the secondary battery on the basis of a prediction function. The prediction function is derived from a relation between growth of a film formed in an electrode surface of the secondary battery and a reduction of a precursor component of the film which is contained in an electrolyte of the secondary battery. The battery capacity prediction device determines a coefficient of the prediction function on the basis of the transition of the load parameter which is stored in the use-state memory device, and predicts the temporal change of the battery capacity of the secondary battery on the basis of the prediction function which uses the coefficient.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: March 17, 2020
    Assignee: VEHICLE ENERGY JAPAN INC.
    Inventors: Masahiro Yonemoto, Youhei Kawahara, Takeshi Inoue, Keiichiro Ohkawa
  • Patent number: 10566818
    Abstract: Provided are a battery charging method, a battery charging information generating method, and a battery charging apparatus. The battery charging apparatus may measure a temperature of a battery, may estimate a state of charge (SOC) and a state of health (SOH) of the battery, may acquire an F mapping relationship that maps F values to C-rates and SOCs at the temperature and the SOH, the F value denoting a ratio of variation of SOC to variation of voltage, and may generate a charging profile that is a sequence of charging C-rates for each of the SOCs for charging the battery based on the estimated SOC and the F mapping relationship.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeryong Jung, Jinho Kim
  • Patent number: 10554064
    Abstract: A battery controlling device includes: a voltage detecting unit configured to detect a closed-circuit voltage of a secondary battery; an open-circuit-voltage computing unit configured to compute an open-circuit voltage of the secondary battery; and an assembled-battery controlling unit configured to discriminate whether a computed value computed based on a voltage difference between the closed-circuit voltage and the open-circuit voltage of the secondary battery in a continuous predetermined period is exceeding a permissible value determined in advance or not. If the computed value is exceeding the permissible value determined in advance, the assembled-battery controlling unit outputs a signal that carries out charge/discharge restriction of the secondary battery.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 4, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroshi Morikawa, Yoshinori Aoshima, Masashi Naitoh
  • Patent number: 10547180
    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 30, 2016
    Date of Patent: January 28, 2020
    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: 10546438
    Abstract: A network of collection, charging and distribution machines collects, charges and distributes portable electrical energy storage devices (e.g., batteries, supercapacitors or ultracapacitors). Vehicle diagnostic data of a vehicle using the portable electrical energy storage device is stored on a diagnostic data storage system of the portable electrical energy storage device during use of a respective portable electrical energy storage device by a respective vehicle. Once the user places the portable electrical energy storage device in the collection, charging and distribution machine, or comes within wireless communications range of a collection, charging and distribution machine, a connection is established between the collection, charging and distribution machine and the portable electrical energy storage device.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: January 28, 2020
    Assignee: Gogoro Inc.
    Inventors: Ching Chen, Hok-Sum Horace Luke, Matthew Whiting Taylor, Yi-Tsung Wu
  • Patent number: 10539621
    Abstract: A method, an apparatus, and a system for determining a state of a battery are provided. The method includes acquiring battery information from a sensor associated with the battery. The battery information includes at least terminal voltage and a terminal current. The method further includes estimating degradation information based on a first principle degradation model and the battery information. The first principle degradation model is a three dimensional model that includes a plurality of layers having one or more attributes representative of physical parameters of the battery. The method further includes identifying a circuit model based on the degradation information and the battery information, determining the state of the battery using the identified circuit model, and implementing a control action or a notification based on the determined state of the battery.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: January 21, 2020
    Assignees: TOTAL SOLAR INTERNATIONAL, NORTH CAROLINA STATE UNIVERSITY
    Inventors: Mo-Yuen Chow, Bharat Balagopal, Wente Zeng
  • Patent number: 10536020
    Abstract: A charging control method includes the following. (a) An electrical state of a battery set is obtained. (b) Whether the electrical state is greater than a first electrical state threshold is determined and charging control based on a first charging mode or a second charging mode on the battery set is performed accordingly. (c) During the charging control on the battery set, at least one temperature difference value is determined based on temperature values of the battery set at different times. (d) Whether the temperature difference value is greater than a first temperature difference threshold is determined and whether to temporarily stop or continue the charging is determined accordingly. (e) During the charging control on the battery set, the electrical state is obtained, and whether the electrical state satisfies a fully-charged criterion is determined and whether to stop or continue the charging control is determined accordingly.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: January 14, 2020
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Wei-Min Hsiao, Hsun-Ming Hsien, Kuo-Kuang Jen, Gwo-Huei You, Jung-Zong Wu
  • Patent number: 10534039
    Abstract: An apparatus for estimating a degree of aging of a secondary battery is configured to: determine a current and a temperature of the secondary battery; determine a state of charge from the current of the secondary battery; determine a degree of calendar aging by applying a cumulative degree-of-aging model to a degree-of-calendar-aging profile corresponding to the determined state of charge and the determined temperature while the secondary battery is in a calendar state; determine a degree of cycle aging by applying the cumulative degree-of-aging model to a degree-of-cycle-aging profile corresponding to the state of charge, the temperature, and the current of the secondary battery while the secondary battery is in a cycle state; and determine, as the degree of aging of the secondary battery, a weighted average value calculated for the determined degree of calendar aging and the determined degree of cycle aging based on calendar time and cycle time.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: January 14, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Se-Wook Seo, Yo-Han Ko, Jin-Hyung Lim, Yong-Seok Choi
  • Patent number: 10527681
    Abstract: It is an object of an embodiment to provide a degradation estimator for an energy storage device, configured to estimate degradation of the energy storage device, an energy storage apparatus, an input-output control device for the energy storage device, and a method for controlling input and output of the energy storage device. The embodiment includes estimating a temporary power decrease rate of the energy storage device in accordance with at least one of an average load, a maximum load, and a ?SOC obtained from detected current of the energy storage device and detected temperature of the energy storage device.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 7, 2020
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Kazuki Furukawa, Hiroki Matsui, Seijiro Ochiai, Takaaki Iguchi
  • Patent number: 10522876
    Abstract: Detection of corrosion within an at least partially electrically conductive housing of an electric energy storage unit. The electric energy storage unit has a positive terminal and a resistance element between the positive terminal and the housing. State of charge values of the electric energy storage unit for at least one first instant of time and at least one second instant of time are determined. An electrical isolation resistance value between the housing of the electric energy storage unit and at least one reference point for at least one third instant of time may also be determined. A first comparison of a difference of the determined state of charge values with a predefined state of charge difference value for the electric energy storage unit and/or a second comparison of the determined electrical isolation resistance value with a predefined electrical isolation resistance value for the electric energy storage unit are performed.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 31, 2019
    Assignees: Robert Bosch GmbH, Lithium Energy and Power GmbH & Co. KG
    Inventors: Bernhard Huber, Frank Stimm, Peter Kohn, Ulrich Lange
  • Patent number: 10514763
    Abstract: There is provided a system that enables rich communication using tactile simulation, the system including: a first terminal apparatus; and a plurality of second terminal apparatuses. The first terminal apparatus transmits first tactile information that has been generated by combining first sensor information related to a first user detected by sensors and indicates a state of the first user. The plurality of second terminal apparatuses receive and output the first tactile information.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: December 24, 2019
    Assignee: SONY CORPORATION
    Inventors: Ikuo Yamano, Yosuke Matsuzaki
  • Patent number: 10516149
    Abstract: A conductive module includes a first conductive member electrically connected to an electrode terminal of a battery cell, a second conductive member that electrically connects a battery monitor monitoring a battery state to the first conductive member, and an accommodation member. The first conductive member, the second conductive member, and the accommodation member are arranged to have a plane along an arrangement direction of a plurality of the battery cells and along a wall surface of an aggregate formed of the plurality of battery cells as a reference plane, and to be arranged side by side along the reference plane such that each transverse direction is orthogonal to the reference plane.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: December 24, 2019
    Assignee: YAZAKI CORPORATION
    Inventor: Yutaro Okazaki
  • Patent number: 10509874
    Abstract: A method for forecasting thermal runaway safety of a full battery by a computer is provided and including receiving a self heat generation onset temperature T0 of a first power battery, wherein the first power battery is a half cell; calculating a maximum temperature Tmax of thermal runaway of the first power battery based on a thermal runaway reaction kinetic model stored in the computer, calculating a maximum temperature rise ?T by making difference between the maximum temperature Tmax and the self heat generation onset temperature T0; and judging the thermal runaway safety of the first power battery by the relationship between the self heat generation onset temperature T0 and the maximum temperature rise ?T.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: December 17, 2019
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xu-Ning Feng, Si-Qi Zheng, Xiang-Ming He, Li Wang, Ming-Gao Ouyang, Dong-Sheng Ren, Lan-Guang Lu
  • Patent number: 10504236
    Abstract: A method of testing a battery includes causing a battery in a test environment to produce a fire having a flame that extends out from the battery, and capturing a digital image of a scene that includes at least a portion of a test environment and the flame, the digital image being formed using visible light. The method includes uploading the digital image to a computer configured to produce a quiver plot and identify points on the quiver plot that define a polygon that is an approximate outline of the flame. The computer is configured to determine dimensions of the polygon, and translate the dimensions from the quiver plot to the digital image, and from the digital image to dimensions of the flame in the scene. And the computer is configured to generate a displayable report that includes at least the dimensions of the flame.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: December 10, 2019
    Assignee: The Boeing Company
    Inventors: Elizabeth Killelea, Joseph Gonzalez, Jan Wei Pan
  • Patent number: 10491008
    Abstract: Systems and methods of pre-charging a capacitor bank are provided. In particular, a power switch and a current limiting device can be coupled in series between a power source and a capacitor bank. Operation of the power switch can be controlled to limit a peak charging current applied to the capacitor bank during a pre-charging process. In this manner, a duty cycle of a pulse signal can be modified based at least in part on a measured current flowing into the current limiting device. In addition, a voltage at the capacitor bank can be monitored, and the pre-charging process can be ceased when the monitored voltage reaches a threshold.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: November 26, 2019
    Assignee: General Electric Company
    Inventors: Longhui Shen, Xianfeng Zhang
  • Patent number: 10483779
    Abstract: To accurately determine a deterioration state of a secondary battery with respect to a practical current value. Provided are a state determination device of a secondary battery, a state determination method of a secondary battery, a secondary battery system, and a charge and discharge control apparatus having the state determination device. In the state determination device of the secondary battery having a positive electrode and a negative electrode, a capacity reduction parameter group A is determined based on charge and discharge characteristics per reference quantity of the positive electrode and the negative electrode and a current value A, and a resistance increase parameter group B is determined based on the charge and discharge characteristics per reference quantity of the positive electrode and the negative electrode, the capacity reduction parameter group A, and a current value B which is larger than the current value A.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: November 19, 2019
    Assignee: HITACHI, LTD.
    Inventors: Kohei Honkura, Yutaka Okuyama
  • Patent number: 10474113
    Abstract: A system includes a power generation system and a controller. The controller includes processors that receive a first set of inputs. The processors also generate a first set of modeled outputs system based on a model of the power generation system and the first set of inputs. The processors further receive a first set of measured outputs corresponding to the first set of modeled outputs. The processors determine a first correction factor based on the first set of modeled outputs and the first set of measured outputs. The first correction factor includes differences between the first set of modeled outputs and the first set of measured outputs. The processors also generate a second set of modeled outputs based on the model, a second set of inputs, and the first correction factor. The processors further control an operation of the power generation system based on the second set of modeled outputs.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: November 12, 2019
    Assignee: General Electric Company
    Inventors: David Spencer Ewens, William Forrester Seely
  • Patent number: 10451679
    Abstract: A battery managing apparatus includes a battery controller configured to determine a time when a battery enters a steady state based on a charge and discharge current of the battery. The apparatus further includes a time controller configured to wake up the battery controller based on the time when the battery enters the steady state. The battery controller is configured to control the battery in response to the time controller waking up the battery controller.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: October 22, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jinyong Jeon
  • Patent number: 10452045
    Abstract: Techniques are described for implementing automated control systems that repeatedly perform automated modifications to control system actuator components' ongoing operations to improve functionality for target battery systems, such as to reduce power dissipation while performing other battery power use activities to maximize battery life. Controlling a battery's usage may include using a DC-to-DC amplifier, and the repeated automated modifications may include modifying the state of the DC-to-DC amplifier actuator to adjust a level of resistance and/or an amount of time during which power is supplied. The repeated automated modifications may be performed to repeatedly reduce the distance between the current battery performance and an idealized version of the battery performance (e.g., a version with no power dissipation).
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: October 22, 2019
    Assignee: Veritone Alpha, Inc.
    Inventors: Wolf Kohn, Jordan Makansi, Yanfang Shen
  • Patent number: 10422835
    Abstract: Aspects of the present disclosure describe a single battery degradation model and methods that considers both CYCLING and CALENDAR aging and useful in both energy management and battery management systems that may employ any of a variety of known battery technologies.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: September 24, 2019
    Assignee: NEC Corporation
    Inventors: Seyyed Ali Pourmousavi Kani, Ratnesh Sharma, Babak Asghari
  • Patent number: 10423174
    Abstract: A pulse frequency modulated (PFM) voltage converter autonomously switches between buck, buck-boost, and boost modes as a function of the input and output voltages. The voltage converter may also switch autonomously between buck mode and a low drop out (LDO) mode when configured in a system in which the battery voltage is known to always be higher than the output voltage.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: September 24, 2019
    Assignee: Silicon Laboratories Inc.
    Inventors: Jeffrey L. Sonntag, Dazhi Wei, Michael D. Mulligan, Zachary A. Kaufman, Joselyn Torres-Torres
  • Patent number: 10424131
    Abstract: A fleet management system for vehicles and batteries at a geographical location may include vehicle identification devices each associated with a corresponding vehicle at the geographical location. The system may also include wireless battery monitors at the geographical location associated with the batteries. Each of the wireless battery monitors may be configured to, when the associated battery is connected to a vehicle, during a discharge cycle, communicate with the vehicle identification device associated with the vehicle to collect a vehicle identifier associated with the vehicle identification device, and store battery activity records for the associated battery along with the vehicle identifier.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: September 24, 2019
    Assignee: Smart Charging Technologies LLC
    Inventor: Nasser Kutkut
  • Patent number: 10422824
    Abstract: A system and method for determining an estimated battery cell state-of-charge and for determining an estimated battery cell resistance and for determining an estimated battery cell available energy is provided. The method includes measuring at least one of a battery cell voltage, a battery cell current, and a battery cell temperature. The method further includes determining an adapted estimated polarization voltage vector. The method further includes estimating the battery cell state-of-charge based on the adapted estimated polarization voltage vector and at least one of the battery cell voltage, the battery cell current, and the battery cell temperature. The method can further include computing the estimated battery cell resistance. The method further stores values corresponding to the estimated battery cell state-of-charge and the estimated battery cell resistance and the estimated battery cell available energy in a memory.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: September 24, 2019
    Assignee: NIKOLA LLC
    Inventor: Gregory L. Plett
  • Patent number: 10408883
    Abstract: Evaluation of a DC power source can include communication with a voltmeter that is arranged to monitor electrical potential across positive and negative electrodes. The method includes determining a full-cell open-circuit voltage (“OCV”), an associated positive half-cell OCV, and an associated negative half-cell OCV at a start-of-life point of the DC power source. A lithium balance model is executed to determine a plurality of beginning states associated with an electrode alignment of the DC power source. An in-use state for the full-cell OCV is determined. An optimization routine is executed employing the lithium balance model to determine in-use states associated with the electrode alignment of the DC power source based upon the in-use state for the full-cell OCV and the beginning states associated with electrode alignment. A negative-to-positive (“N/P”) ratio is determined based upon the in-use states, and battery life is evaluated based upon the N/P ratio.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 10, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Raghunathan K, Brian J. Koch
  • Patent number: 10393816
    Abstract: A voltage-detecting device applied to a battery pack includes a serially connected body of plural battery cells. Serially connected bodies of at least two of the battery cells of the battery pack form detection blocks; each of the respective battery cells of a detection block, or a serially connected body of a number of battery cells in a detection block that is less than the number of the battery cells of the detection block is taken to be a battery for which voltage is to be detected. Monitoring units includes a main voltage-detecting unit for detecting terminal voltage of each of the batteries; a positive-electrode-side input unit electrically connected to the positive-electrode side of a detection block; a negative-electrode-side input unit electrically connected to the negative-electrode side thereof; and sub voltage-detecting units for detecting terminal voltage of the detection blocks as the state of the battery pack.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 27, 2019
    Assignee: DENSO CORPORATION
    Inventors: Takashi Inamoto, Tsuneo Maebara, Ryotaro Miura
  • Patent number: 10393819
    Abstract: A battery state estimation method and apparatus. The apparatus includes a time detector configured to detect a time during which a voltage level of a battery, being partially charged and discharged, changes through a constant current charge. The apparatus also includes a state of health (SoH) information estimator configured to estimate SoH information of the battery with the changed voltage level and the detected time, based on predetermined reference information.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: August 27, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kaeweon You, SangDo Park
  • Patent number: 10393821
    Abstract: Systems and corresponding methods for optical monitoring of a state of charge or a state of health of a battery are described. For example, the battery monitoring system may include an imaging device that captures images of cells of the battery and determines states of charge of the cells based on observed dimensional changes over time, e.g., relative to reference markers. The observed dimensional changes may also be corrected for dimensional changes due to thermal strain. In addition, states of health of individual cells of the battery may be determined by comparing the dimensional changes of each of the cells over time. Further, the images may be captured at various frequencies, e.g., based on an expected operational duration of the battery and/or based on a current state of charge or state of health.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: August 27, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Chengwu Cui, Benjamin Martin Schweitzer
  • Patent number: 10386418
    Abstract: Provided is a battery state estimation device configured to: calculate a first state of charge and a first open circuit voltage corresponding to the first state of charge by using a detection current output from a current detection unit and state-of-charge estimation parameters; calculate a second open circuit voltage and a second state of charge corresponding to the second open circuit voltage by using a detection voltage output from a voltage detection unit and equivalent circuit parameters; recursively estimate and update the state-of-charge estimation parameters by using a state-of-charge error, which is a value obtained by subtracting the first state of charge from the second state of charge; and recursively estimate and update the equivalent circuit parameters by using an open circuit voltage error, which is a value obtained by subtracting the first open circuit voltage from the second open circuit voltage.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: August 20, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoki Takegami, Toshihiro Wada
  • Patent number: 10365330
    Abstract: A battery fuel gauge circuit for determining the state of charge of a rechargeable battery is presented. The circuit comprises: a coulomb counter for providing values that are indicative of a charging current or discharge current provided to/by the battery; a voltage sensor; a first pre-processing unit to provide a current change estimate based on the values provided by the coulomb counter; an event filter unit to confirm whether the current change estimate exceeds a certain threshold; an electromotive force unit to determine an electromotive force value of the battery; a state of charge estimator unit to determine the state of charge of the battery based on the electromotive force value.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: July 30, 2019
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: Michael Mayr
  • Patent number: 10367237
    Abstract: According to an example, a charge level of a battery detected with a processing resource communicatively coupled to the battery. In response to detecting a battery at full charge, the current full charge capacity of the battery is recorded, and an error cycle count, a design cycle count, and a full charge capacity at a last calibration are fetched. A maximum allowable battery decay level is calculated based on the error cycle count, the design cycle count, and the full charge capacity at last calibration. In an example, in the event that the current full charge capacity is less than the full charge capacity at the last calibration minus the maximum allowable battery decay level, a battery calibration alert is triggered.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: July 30, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John Landry, Chih-Ping (Tom) Chung
  • Patent number: 10367235
    Abstract: A battery system includes a battery that couples to an electrical system. The battery system also includes a battery control module that electrically couples to the battery. The battery control module monitors at least one monitored parameter of the battery, and the battery control module recursively calculates at least one calculated parameter of the battery based on at least an equivalent circuit model, the at least one monitored parameter, and a Kalman filter.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: July 30, 2019
    Assignee: CPS Technology Holdings LLC
    Inventors: Qingzhi Guo, Christian Kuper, Zhihong H. Jin
  • Patent number: 10353009
    Abstract: A secondary battery capacity measuring system that estimates maximum capacities of other cells using characteristics of a deteriorated cell even when a charging process in the deteriorated cell having a smaller maximum capacity than the other cells in cells constituting a battery module ends and data for measuring the maximum capacities of the other cells cannot be acquired is provided.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 16, 2019
    Assignee: Yokogawa Electric Corporation
    Inventors: Soichiro Torai, Satoshi Yoshitake, Masahiro Kazumi, Masaru Nakagomi
  • Patent number: 10355510
    Abstract: A battery pack is disclosed. In one aspect, the battery pack includes a chargeable battery and a battery management system (BMS) configured to charge the battery in a plurality of charging periods each including a constant current supply period and a constant voltage supply period. The battery pack also includes a resistance estimator configured to estimate the resistance of the battery. The BMS is further configured to change a charging period of the battery from a constant voltage supply period of an ith charging period to a constant current supply period of an (i+1)th charging period based on the resistance of the battery, and wherein i is a natural number.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: July 16, 2019
    Assignee: Samung SDI Co., Ltd.
    Inventors: Jung Min Kim, Su Bin Song, Joo Sick Jung, Myoung Seok Lee, Dmitry Golovanov, Green Baek, Ji Eun Kim
  • Patent number: 10355325
    Abstract: A method for reusing a vehicle rechargeable battery to rebuild an assembled battery from a plurality of battery units having a usage history is provided. The method includes measuring a remaining charge of each of a plurality of battery units obtained by dismantling an assembled battery having a usage history. The method further includes selecting from the battery units a battery unit in which the measured remaining charge is greater than or equal to a remaining charge lower limit value, which is set in a range that is greater than zero and less than a lower limit value of a remaining charge control range of a vehicle in which the assembled battery was installed, and assembling a new assembled battery using the selected battery unit.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: July 16, 2019
    Assignees: PRIMEARTH EV ENERGY CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Koba, Shinichiro Ito, Yasushi Nakagiri, Tamotsu Fukuma, Kouichi Ichikawa, Yasuhiro Takahashi, Masahiko Mitsui
  • Patent number: RE47527
    Abstract: Disclosed is a system and method for computing distance to empty (DTE) based on available energy computed using a battery SOC vs open circuit voltage (OCV) table, battery temperature vs energy efficiency, an energy efficiency vs energy table, etc., to enable a more accurate calculation of the DTE in consideration of the temperature of the battery, which is one of disturbance elements.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: July 23, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Jin Heo, Eui Sun Hong, Young Chan Byun, Seon Young Park, Byung Soon Min