Battery Monitoring Patents (Class 702/63)
  • Patent number: 11073563
    Abstract: Disclosed is a battery state estimation method and apparatus, the method including selecting sensing data of a portion of batteries, transmitting the selected sensing data to at least one estimator among estimators, transmitting sensing data of a remaining portion of the batteries to a remaining estimator among the estimators, and determining state information of the batteries using the estimators.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: July 27, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinho Kim, Taewon Song, Younghun Sung
  • Patent number: 11072246
    Abstract: Electrochemical cell diagnostic systems and methods are described. Examples include systems having a signal generator configured to apply a stimulus having a stimulus frequency to at least one electrochemical cell. The stimulus may be configured to excite at least one non-linear mode of the at least one electrochemical cell. Systems may include measurement circuitry configured to detect a response of the at least one electrochemical cell to the stimulus. The response may include a second or greater harmonic component. Systems may include a display device configured to display an indication of an internal state of the at least one electrochemical cell based, at least in part of the second or greater harmonic component of the response.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 27, 2021
    Assignee: University of Washington
    Inventors: Matthew D. Murbach, Daniel T. Schwartz
  • Patent number: 11075536
    Abstract: A power providing device according to an embodiment of the present disclosure comprises a charger configured to adjust at least one of a voltage and a current of power provided from a power supplying source and to provide the adjusted power to an electronic device and a processor configured to receive, from the electronic device, at least one of identification information of the electronic device and information related to a battery of the electronic device, and to control the charger to adjust at least one of the voltage and the current of the power using at least one of the identification information about the electronic device and the information related to the battery of the electronic device.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: July 27, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Hoon Jung, Bong-Chul Kim, Ki-Young Kim, Dae-Hyun Kim, Sang-Wook Kwon
  • Patent number: 11065978
    Abstract: Systems, methods, and storage media for optimizing performance of a vehicle battery pack are disclosed. A method includes receiving data pertaining to cells within a battery pack installed in each vehicle of a fleet of vehicles, the data received from at least one of each vehicle, providing the data to a machine learning server, and directing the machine learning server to generate a predictive model. The predictive model is based on machine learning of the data. The method further includes providing the predictive model to each vehicle, the predictive model providing instructions for adjusting configuration parameters for each of the cells in the battery pack such that the battery pack is optimized for a particular use, and directing each vehicle to optimize performance of the vehicle battery pack based on the predictive model.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: July 20, 2021
    Assignee: TOYOTA RESEARCH INSTITUTE, INC.
    Inventors: Muratahan Aykol, Patrick K. Herring, Abraham Anapolsky
  • Patent number: 11067637
    Abstract: A control device calculates an amount of increase ?Am in freezing temperature measurement value Am from an initial freezing temperature ?0 and calculates an amount of lowering in capacity corresponding to the amount of increase ?Am in freezing temperature as an amount of lowering in capacity ?Bx due to deterioration of a material. The control device calculates an amount of lowering in capacity measurement value Bm from an initial capacity B0 as a whole amount of lowering in capacity ?Bm and calculates a material deterioration ratio X by using ?Bx and ?Bm. The control device calculates a value resulting from subtraction of ?Bx from ?Bm as an amount of lowering in capacity ?By due to precipitation of Li and calculates an Li precipitation deterioration ratio Y by using ?By and ?Bm.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: July 20, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryo Kanada, Koji Umemura, Akemi Nakatake
  • Patent number: 11056905
    Abstract: A battery charging management method and a terminal, where the method includes charging, by the terminal, a battery according to a first charging policy, where the first charging policy includes a first voltage and a first current for charging the battery obtaining, by the terminal, a battery capacity of the battery when the terminal fully charges the battery for N times, where N is a positive integer determining, by the terminal, a second charging policy based on the battery capacity, where the second charging policy includes a second voltage and a second current for charging the battery and charging, by the terminal, the battery according to the second charging policy.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: July 6, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shiliang Li, Zhen Yuan
  • Patent number: 11054475
    Abstract: A battery capacity estimation apparatus includes one or more hardware processors that: calculate a current integrated value by integrating electric currents of a secondary battery system whose capacity is to be estimated; calculate an SOC estimate value in a stabilization state where a change in SOC of a secondary battery per unit time is comparatively small; perform a regression analysis in which the current integrated value is defined as a dependent variable and the SOC estimate value is defined as an independent variable, the regression analysis being performed while correcting the current integrated value based on a value of a coefficient of determination so that a result of the regression analysis has predetermined accuracy; and estimate a capacity of the secondary battery system based on the result of the regression analysis.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: July 6, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Masahiro Tohara, Masako Kiuchi, Shunsuke Kawachi, Mami Mizutani, Takenori Kobayashi
  • Patent number: 11054476
    Abstract: A method for monitoring a status of a battery, wherein a battery current (I) is detected during a measurement cycle and the amount of charge (?Q) supplied to the battery and/or removed from the battery is determined as a function of the detected battery current (I). Furthermore, an estimated value (CS, CS0, CS1, CS2, CSn) for a capacity (C) of the battery before a certain relaxation time of the battery has elapsed, during which the battery is in the unloaded state after a load phase during which power is supplied to the battery and/or power is removed from the battery, is determined as a function of the determined amount of charge (?Q) and, as a function of the estimated value (CS, CS0, CS1, CS2, CSn), it is determined for the capacity (C) whether the capacity (C) of the battery is above a specifiable limit value (G).
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: July 6, 2021
    Assignee: AUDI AG
    Inventor: Christoph Gass
  • Patent number: 11035905
    Abstract: Provided is an apparatus and method for testing the electrochemical performance of a battery cell in a non-destructive manner. The apparatus includes a measuring unit configured to measure an open circuit voltage (OCV) of the battery cell, a memory unit configured to store data obtained through pre-experiments for each of a plurality of reference cells and a process deviation value occurred in a manufacturing process of the battery cell, and a control unit electrically connected to the measuring unit and the memory unit. The control unit is configured to determine at least one of a capacity of the battery cell, an estimated profile data indicating a change in OCV of the battery cell in a predetermined state of charge (SOC) range and a resistance of the battery cell.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: June 15, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Gi-Min Nam, Jin-Hyung Lim, Du-Seong Yoon, Won-Tae Joe
  • Patent number: 11034257
    Abstract: A method for estimating remaining energy in a battery pack having series-connected cells/cell groups includes measuring battery parameters, including a battery voltage, current, and temperature. The controller estimates a static state of charge difference (?SOC) value and a current-dependent ?SOC value in real-time using the parameters, including calculating the static ?SOC value as a difference between an average SOC of the battery pack and an SOC of a weakest/lowest energy cell group. The current-dependent ?SOC value is a percentage SOC per unit of the current. The static ?SOC value and current-dependent ?SOC values are filtered via a multi-parameter state estimator block. Using the filtered state values, the controller executes a control action responsive to the estimated remaining energy, including displaying the remaining energy and/or a quantity derived from the remaining energy via a display device. A powertrain system includes the controller, electric machine, and battery pack.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: June 15, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Garrett M. Seeman, Justin Bunnell, Ciro A. Spigno
  • Patent number: 11029361
    Abstract: A method for determining a state of charge adapted for a battery is provided, the method including: obtaining a plurality of discharge curves; determining that the battery is in a discharge mode; measuring a current C-rate and a current voltage of the battery in the discharge mode; selecting a first discharge curve and a second discharge curve from the plurality of discharge curves, wherein a first C-rate corresponding to the first discharge curve is greater than the current C-rate, and a second C-rate corresponding to the second discharge curve is less than the current C-rate; and calculating a state of charge of the battery according to the first discharge curve and the second discharge curve.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: June 8, 2021
    Assignee: Acer Incorporated
    Inventor: Chin-Yi Tsai
  • Patent number: 11024885
    Abstract: An electronic apparatus includes a secondary battery; a touch panel; a deformation amount detector configured to detect a deformation amount of the secondary battery; a touch determination unit configured to determine whether the touch panel is in a touch state; and a state determination unit configured to determine a state of the secondary battery using the deformation amount detected by the deformation amount detector when the touch panel is in the non-touch state based on a determination result of the touch determination unit.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 1, 2021
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Tetsu Nishida, Takatoshi Itagaki, Noriyuki Wainai, Yasuhiro Kinoshita
  • Patent number: 11022652
    Abstract: A battery monitoring system is for a battery string(s) at a geographical location, where the battery string(s) includes a plurality of series-connected batteries. The system may include wireless battery monitors each associated with a respective battery, a wireless string monitor associated with the battery string(s), and a wireless access point for communicating with the wireless battery monitors and the wireless string monitor at the location.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 1, 2021
    Assignee: SMART CHARGING TECHNOLOGIES LLC
    Inventor: Nasser Kutkut
  • Patent number: 11005274
    Abstract: A sensing apparatus includes a sensor configured to sense a physical quantity of a battery, a memory configured to store one or both of physical quantity data corresponding to the sensed physical quantity and status information of the battery, a first interface configured to transmit one or both of the physical quantity data and the status information to a master processor and a second interface configured to provide an interface between a slave processor and the memory.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 11, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyosun Hwang, DongKee Sohn
  • Patent number: 11002795
    Abstract: Provided is a charger with a battery diagnosis function and a control method thereof. The charger with a battery diagnosis function includes a DC-DC converter configured to operate in a charging mode to charge a battery or to operate in a diagnosing mode to apply a perturbation voltage to the battery when the battery is fully charged, and a digital signal processor configured to calculate an equivalent circuit model parameter of the battery according to an output response of the battery with respect to the perturbation voltage, to calculate a charging/discharging frequency of the battery by using an ohmic resistance value among the equivalent circuit model parameter of the battery, and to calculate a residual equivalent capacity of the battery by using the charging/discharging frequency of the battery.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: May 11, 2021
    Assignee: Foundation of Soongsil University-Industry Cooperation
    Inventors: Woo Jin Choi, Duck Min Kim
  • Patent number: 10996279
    Abstract: A diagnostic system for a battery management system is provided. The diagnostic system includes a microcontroller having application-specific components. A first BMS diagnostic handler application sends a first index value to an application-specific component diagnostic safety application. The application-specific component diagnostic safety application accesses an application-specific component diagnostic flag in a first table in a RAM if the first index value is equal to a valid index value in a first table. The application-specific component diagnostic safety application sends the application-specific component diagnostic flag to the first BMS diagnostic handler application.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: May 4, 2021
    Assignee: LG Chem, Ltd.
    Inventor: Kerfegar K. Katrak
  • Patent number: 10991993
    Abstract: The invention relates to a method for operating a battery having at least one battery module (2) with at least one battery cell (3), having the following method steps: a. determining a first value of at least one first monitored variable of the at least one battery module (2) and/or the at least one battery cell (3), c. checking whether the determined first value of the at least one first monitored variable lies within a specified first target range for the at least one first monitored variable, the first target range being determined in particular in a method step b, and d.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: April 27, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Markus Kohlberger, Alexander Reitzle, Mike Martinko
  • Patent number: 10989761
    Abstract: A method calibrates a battery allowing calibration data linked to its state of health to be memorized. The method includes determining at least one characteristic state of the battery, between fully charged and fully discharged, by detecting a peak in variation of the derivative of its open-circuit voltage while charging or discharging the battery, or at least one characteristic state when it is fully charged or fully discharged, or defined by crossing of a voltage, or current, threshold in a constant current, or constant voltage, phase while charging or discharging the battery. The method also includes defining a reference state of the battery based on this characteristic state and measuring the open-circuit voltages of the battery in the reference state for multiple different states of health and memorizing these calibration data including at least some pairs of actual state of health/open-circuit voltage values in an electronic memory.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: April 27, 2021
    Assignee: RENAULT s.a.s.
    Inventor: Maxime Montaru
  • Patent number: 10992161
    Abstract: A luminaire power pack comprises a rechargeable battery, an LED driving circuit, a power setting circuit, a charging circuit, and a charging detection circuit. The luminaire power pack may be used to increase functionalities of an external luminaire connected to AC mains. The LED driving circuit is configured to convert a terminal voltage from the rechargeable battery into a step-up DC voltage and to provide different output power according to power settings when a line voltage from the AC mains is unavailable. The luminaire power pack may further comprise a relay switch configured to relay either the line voltage from the AC mains or the step-up DC voltage to operate the external luminaire. The charging detection circuit is configured to enable or disable the LED driving circuit in proper situations and to meet regulatory requirements without operational ambiguity and safety issues.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: April 27, 2021
    Assignee: Aleddra Inc.
    Inventor: Chungho Hsia
  • Patent number: 10983168
    Abstract: Various embodiments of the present technology may comprise methods and apparatus to determine an RSOC value of a battery. The methods and apparatus may comprise utilizing various parameters, such as voltage and/or current, to calculate the RSOC of the battery. In various embodiments, the methods and apparatus may display one of a first RSOC and a second RSOC. In various embodiments, the methods and apparatus may further detect changes in the relevant parameter(s), adjust the reported RSOC of the battery accordingly, and report the adjusted RSOC.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 20, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Hideo Kondo
  • Patent number: 10983167
    Abstract: Method and device for gauging an electronic apparatus are disclosed. The method comprising acts of processing measured data sets by a learned neural network to generate a gauging result, and updating neural coefficients of the learned neural network with a reference data for more accurate prediction. The learned neural network is trained with known algorithm or known data provided by the manufacture or collected from others. The device comprises sensors and controller. The sensors are configured to sense the electronic apparatus to generate the measured data sets. The controller has the learned neural network and a error feedback unit. The neural network generates the gauging result. The error feedback unit generates a reference data sensed from the electronic apparatus to the neural network for updating neural coefficients of the neural network for more accurate prediction.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: April 20, 2021
    Assignee: HUAYUAN SEMICONDUCTOR (SHENZHEN) LIMITED COMPANY
    Inventors: Richard Landry Gray, weiguang qiu
  • Patent number: 10978986
    Abstract: A shortening of an initial diagnosis time is achieved, even after an elapse of a predetermined delay time from an ignition switch being switched to an off-state. After the ignition switch is switched to an off-state after an operation of a control device, which drives an electric motor that applies steering assistance force to a steering system, diagnosis of a power supply circuit that supplies power to the control device is carried out, and a diagnosis item to be implemented in a succeeding initial diagnosis is determined based on a result of the diagnosis.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: April 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Seiichi Imaizumi, Susumu Zeniya, Yuji Takatsuka, Yasushi Takemoto
  • Patent number: 10969438
    Abstract: Disclosed are a secondary battery and a life prediction apparatus thereof. The life prediction apparatus predicts a life of a secondary battery including an electrode assembly, a positive electrode tab, a negative electrode tab, a case and a plurality of reference electrodes. In particular, the life prediction apparatus predicts a residual life of the secondary battery by detecting impedances of different regions of the secondary battery by using the plurality of reference electrodes.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: April 6, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Song-Yi Han, Young-Geun Choi, Song-Taek Oh
  • Patent number: 10969439
    Abstract: A diagnostic device for a battery includes a measurement unit configured to acquire a current value and a voltage value of the battery, and a diagnostic unit configured to calculate an internal resistance value of the battery based on the current value and the voltage value acquired by the measurement unit, and diagnose the battery based on the internal resistance value. The diagnostic unit is configured to cause the battery to perform discharge at a first current value and a second current value smaller than a predetermined target current value during a first period and a second period shorter than a predetermined target period, respectively, estimate the internal resistance value when the battery is caused to perform the discharge at the target current value during the target period, and diagnose the battery.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 6, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Linyu Sun
  • Patent number: 10962599
    Abstract: A system for monitoring battery status and estimating battery life including a battery monitor configured to connect to a battery. The battery monitor comprises a voltage detection circuit, a temperature sensor and a wireless transmitter configured to transmit voltage and temperature data measured by the voltage detection circuit and the temperature sensor. The system further includes a remote device operative to receive battery voltage and temperature data from the battery monitor, generate a real-time indication of battery voltage, and generate predicted battery life data.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 30, 2021
    Assignee: Measurement Ltd.
    Inventor: Steven Petrucelli
  • Patent number: 10951029
    Abstract: A power source input device for both AC/DC power sources includes a first power source input unit that is provided at a power source input terminal of an electric power device to convert an AC or DC commercial power source selectively input from the outside into a DC driving power source and supply the converted DC driving power source to an accessory device. A second power source input unit is provided in the accessory device to supply the DC driving power source supplied from the first power source input unit to at least one load, thereby simplifying a configuration of a power source input terminal of each of the electric power devices and reducing a manufacturing cost thereof.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: March 16, 2021
    Assignee: LG Electronics Inc.
    Inventors: Kyung Min Kim, Joonsik An
  • Patent number: 10935608
    Abstract: Apparatus and method for estimating a state of a battery is provided. According to one aspect, a battery state estimation apparatus includes a state of health (SOH) estimator configured to estimate SOH of a battery based on degradation of the battery and the data acquired from the battery, and a state of charge (SOC) estimator configured to estimate the SOC of the battery based on the SOH of the battery.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: March 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Won Song, Sang Do Park, Tae Jung Yeo, Jin Ho Kim
  • Patent number: 10928459
    Abstract: The present disclosure provides a battery detection circuit and a battery management system. The battery detection circuit includes a positive relay, a negative relay, a first positive sampling unit, a first negative sampling unit, a second positive sampling unit, a second negative sampling unit, and a reference voltage terminal, wherein: all of the first positive sampling unit, the first negative sampling unit, the second positive sampling unit, the second negative sampling unit and a power battery pack to be detected are connected to the reference voltage terminal. With the battery detection circuit and the battery management system of the present disclosure, both the cost of the battery detection circuit and the complexity of the structure of the battery detection circuit can be reduced.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: February 23, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhanyu Sun, Zhimin Dan, Yizhen Hou, Jiechao Luo, Wei Zhang
  • Patent number: 10915080
    Abstract: Disclosed are a communication method between a master controller and slave controllers, a slave controller for the communication method, and a battery management system using the communication method and the slave controller, in which the master controller receives safety information about battery cells through a plurality of channels even when each of a plurality of slave controllers includes only one micro controller unit, thereby minimizing the increase in the cost and enhancing the safety of the battery management system. The communication method includes performing bidirectional communication between a master controller and first to Nth (where N is an integer equal to or more than two) slave controllers through a first communication channel, and receiving, by the master controller, an indication signal through a second communication signal via the first to Nth slave controllers.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 9, 2021
    Assignees: SILICON WORKS CO., LTD., LG CHEM, LTD.
    Inventors: Myoung Su Song, Jae Wan Kim, Jin Yong Jeon, Ki Suk Cho, Il Kwon Kim, Seung Jun Choi, Kyu Ho Kim, Kyoung Choon Min, Ki Young Lee, Won Gon Kim
  • Patent number: 10909641
    Abstract: Described herein are systems and methods for providing and transporting mobile energy storage units (MESU). Multiple MESUs may be provided and each may include one or more energy modules, which may be at least partially charged at a first location and at least partially discharged at one or more secondary locations, which may be separated from the first location by at least one body of water. One or more computer hardware processors may simulate scenarios for transporting multiple MESU to the secondary location(s), and each of the scenarios may include different values for variables associated with one or more characteristics of the MESU(s). Each of these scenarios may be associated with a cost for energy transport. Based on the cost determined for each of the energy transport scenarios, one of the simulated energy transport scenarios may be selected and scheduled using a transport scheduling system.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 2, 2021
    Assignee: Gridspan Energy LLC
    Inventors: Alexander Macklis, Samuel Snodgrass
  • Patent number: 10910676
    Abstract: A battery made up of nickel-cadmium cells includes an indicator for displaying a state of charge comprising sensors for performing continuous measurements of voltage and current and of temperature of the battery, a memory storing at least a history of charge/discharge, a predefined reference voltage, current and temperature, and the measurements and history determined, and a control unit for determining an operation mode of the battery and determining a correction to be applied to the voltage and current measured, calculating a theoretically available capacity of the battery depending on the operating mode and the correction, determining a need for recalibration of the theoretically available capacity of the battery enabling a capacity actually available of the battery to be calculated, and based on the capacity actually available, defining the state of charge of the battery.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: February 2, 2021
    Assignee: SAFT
    Inventors: Kévin Girard, Jean-pierre Texier, Dominique Lacombe, Xavier Tridon, Pascal Lavaur
  • Patent number: 10907981
    Abstract: A vehicle includes an electric motor and a battery operable to provide electrical power to the electric motor. The battery system includes a first battery pack and a second battery pack. The first battery pack has a relatively high power density, and the second battery pack has a relatively high energy density. An electronic controller determines a remaining driving range of the first battery pack, and a remaining driving range of the second battery pack. The vehicle has a human-machine interface (HMI) operatively connected to the electronic controller and configured to indicate the remaining driving range of the first battery pack and the remaining driving range of the second battery pack. The controller executes a method of monitoring the battery system.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: February 2, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Wei Li, Mark W. Verbrugge
  • Patent number: 10908220
    Abstract: A battery state estimation method and apparatus are provided. Sensing data of a battery is received, and feature information is acquired by preprocessing the sensing data. The preprocessed sensing data is selected based on the feature information, and state information of the battery is determined based on at least one of the selected preprocessed sensing data or previous state information of the battery.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: February 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: SangDo Park, Kaeweon You
  • Patent number: 10890625
    Abstract: A battery model includes a series connection of a direct current resistance model, a charge transfer resistance model derived from the Butler-Volmer equation, and a diffusion resistance model. A battery state estimating device includes a storage unit and a parameter calculating unit. The storage unit stores information on the resistance parameter related to the resistance component of the diffusion resistance model, the time constant parameter related to the time constant of the diffusion resistance model, and the charge parameter of the charge transfer resistance model, in association with temperature information of the secondary battery. The parameter calculating unit calculates each of the parameters corresponding to the detected temperature value based on a detected temperature value of the secondary battery and the information stored in the storage unit.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 12, 2021
    Assignee: DENSO CORPORATION
    Inventors: Toshiyuki Kawai, Keiichi Kato, Yuji Koike, Hideaki Tanaka, Shuntaro Kono
  • Patent number: 10893626
    Abstract: An information handling system includes multiple power supply units, and first and second chassis management controllers. The power supply units provide power to components within the information handling system. The first chassis management controller calculates a first number of power supply units needed to provide power to the components of the information handling system, and asserts a first chassis armed signal to servers in response to a detection that the first number of power supply units is greater than zero. The second chassis management controller receives the first number of power supply units from the first chassis management controller, and asserts a second chassis armed signal to the servers in response to a detection that the first number of power supply units being greater than zero.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: January 12, 2021
    Assignee: Dell Products, L.P.
    Inventors: Aaron M. Rhinehart, Dan Rao, Binay A. Kuruvila
  • Patent number: 10884061
    Abstract: A relay diagnosis circuit, diagnosis method, and battery management system are disclosed in the present disclosure. The relay diagnosis circuit may include a first sampling unit, a second sampling unit, a first sampling point, a second sampling point, a reference voltage terminal, and a processor. A first end of the first sampling unit is connected with voltage output end of the power battery pack to be measured and a first end of a relay. A second end of the first sampling unit is connected with the reference voltage terminal and the first sampling point. A first end of the second sampling unit is connected with a second end of the relay. A second end of the second sampling unit is connected with the reference voltage terminal and the second sampling point.
    Type: Grant
    Filed: August 26, 2018
    Date of Patent: January 5, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Jiechao Luo, Wei Zhang, Zhanyu Sun, Yizhen Hou, Zhimin Dan
  • Patent number: 10884065
    Abstract: Provided are apparatus and method of testing electrochemical performance of a battery cell in a nondestructive manner The apparatus according to an embodiment of the present disclosure includes: a memory configured to store first profile data, second profile data, a first positive electrode upper limit, a first positive electrode lower limit, a first negative electrode upper limit, and a first negative electrode lower limit that are determined in advance through a preliminary experiment with respect to each of a plurality of reference cells; a sensing unit configured to measure an open-circuit voltage of a test cell according to a variation in a state of charge (SOC) of the test cell; and a controller electrically connected to the memory and the sensing unit. The controller is configured to test performance of the test cell in a nondestructive manner based on data regarding the reference cells and data measured by the sensing unit stored in the memory.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 5, 2021
    Inventors: Jin-Hyung Lim, Du-Seong Yoon, Won-Tae Joe, Yong-Seok Choi
  • Patent number: 10877101
    Abstract: Provided is a method for determining parameters of an electrochemical energy store in a computer-aided manner, wherein a plurality of temporally successive measurement data records having respective assigned measurement times and a predefined model of the energy store are processed. A particular measurement data record includes a measured voltage value of a terminal voltage of the energy store, a measured current value of a current flow in the form of a charging or discharging current of the energy store and a state of charge measured value of the state of charge of the energy store Equation parameters of at least one linear equation system are stipulated in the method, which equation system is based on the predefined model.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: December 29, 2020
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Anja Severin, Philipp Wolfrum
  • Patent number: 10877539
    Abstract: An information handling system includes first and second power supplies, and a management controller. The power supplies are configured to operate in a first power mode to supply power to the information handling system and in a second power mode to shut down from supplying power to the information handling system. The management controller is configured in a normal operation mode to set the first power supply to the first power mode and set the second power supply in the second power mode. The management controller is configured in a test operation mode to set the second power supply to the first power mode, to set the first power supply to the second power mode, to determine whether the second power supply is operating within a first limit, and when the second power supply is not operating within the first limit, to provide a first indication that the second power supply is failing.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: December 29, 2020
    Assignee: Dell Products, L.P.
    Inventors: Santosh Kumar Sahu, Rama R. Bisa, Sunil Lingappa, Ajaya K. Senapati, Vaideeswaran Ganesan
  • Patent number: 10871521
    Abstract: A method and apparatus for correcting a state of charge (SOC) is provided. The method includes: acquiring state data of a battery cell in a case where the battery cell meets a preset standing condition; determining, when a length of voltage data in the state data is greater than a first preset length and less than a second preset length, and a change value of the voltage data in the state data is greater than a preset change threshold, a first set of pending parameters of a predetermined near-steady-state battery model according to the state data; predicting, according to the first set of pending parameters, a second set of pending parameters of the predetermined near-steady-state battery model; calculating an estimated steady-state OCV value according to the second set of pending parameters; and determining a SOC correction value corresponding to the estimated steady-state OCV value to correct current SOC.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: December 22, 2020
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Jian Ruan, Shichao Li, Mingshu Du, Shenzhi Tang, Yanhua Lu, Wei Zhang
  • Patent number: 10871522
    Abstract: According to an embodiment, a cell state calculation apparatus includes the following elements. The database stores a function indicating a relationship between a voltage and a charged capacity of an active material. The active material amount calculation unit calculates an amount of an active material of the secondary cell by referring to the database and by using the voltage detected by the voltage detector and the current detected by the current detector while the secondary cell is charged or discharged. The open circuit voltage calculation unit calculates a function indicating a relationship between an open circuit voltage and a charged capacity of the secondary cell by referring to the database and by using the calculated amount of the active material.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: December 22, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ena Ishii, Nobukatsu Sugiyama, Mitsunobu Yoshida, Tomokazu Morita
  • Patent number: 10850690
    Abstract: An electronic device for use in a vehicle and method for controlling the same are provided. The device includes a battery sensor configured to detect a battery voltage when connected to a vehicle's battery, and a processor in communication with the battery sensor. The processor is configured to monitor the battery voltage of a vehicle's battery using the battery sensor and identify at least one transition in the battery voltage. The processor is also configured to determine an operational state of the vehicle based on the transition and the battery voltage, and control the electronic device in accordance with the operational state of the vehicle.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: December 1, 2020
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Craig J. Witcraft, Kamran Faterioun
  • Patent number: 10830827
    Abstract: The system may be configured to perform operations including measuring a temperature and a voltage of a battery at various times producing data points, wherein each data point comprises the temperature and voltage of the battery and a respective time that the temperature and voltage was measured; assigning each data point to a respective cell in a matrix stored on a, wherein the matrix comprises a first axis comprising voltage ranges and a second axis comprising temperature ranges, wherein each cell is associated with a voltage range and a temperature range, wherein the voltage and temperature of each data point is within the voltage range and temperature range, respectively, of the respective cell; and/or generating a first value in a counter comprised in each cell reflecting a total number of data points assigned to the cell, such that the first value in each cell is stored in the memory.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: November 10, 2020
    Assignee: NORTHSTAR BATTERY COMPANY, LLC
    Inventors: Don Karner, Frank Fleming, Ulf Krohn, Christer Lindkvist
  • Patent number: 10823785
    Abstract: The invention relates to a method for estimating the state of charge (SOC) of a battery when battery is in the at least states of: charging, discharging, and relaxing. The invention makes use of the battery voltage (VBAT) instead of the battery current. In order to build models in the method, we use standard charging and discharging processes to collect battery information.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 3, 2020
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventor: Chang-Yu Ho
  • Patent number: 10824348
    Abstract: A secure memory (145) is disclosed. The memory (145) may include data storage (310, 315, 320, 325, 330, 335, 340, 345) for data, along with a data read logic (405) and a data write logic (410) to read and write data from the data storage (310, 315, 320, 325, 330, 335, 340, 345). A password storage (355) may store a stored password (510). A receiver may receive a received password (505) from a memory controller (205). A comparator may compare the received password (505) with the stored password (510). An erase logic (435) may erase data in the data storage (310, 315, 320, 325, 330, 335, 340, 345) if the received password (505) does not match the stored password (510). Finally, a block logic (425) may block access to the memory (145) from the memory controller (205) until after the comparator (430) completes its operation.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: November 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sompong Paul Olarig, Mu-Tien Chang
  • Patent number: 10816607
    Abstract: A method for estimating a SOC of a battery electrically coupled to at least one of a load or a power source includes detecting, by a voltage sensor, voltages of the battery. The method further includes determining, by a processor, an average voltage of the battery by averaging the detected voltages of the battery over a predetermined period of time. The method further includes determining, by the processor, a present operating state of the battery based on at least one of the detected voltages of the battery. The method further includes determining, by the processor, a present SOC of the battery based on the present operating state of the battery and the average voltage of the battery. The method further includes transmitting, by the processor, the present SOC of the battery to an output device for outputting the present SOC of the battery.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: October 27, 2020
    Assignee: NORTHSTAR BATTERY COMPANY, LLC
    Inventors: Don Karner, Frank Fleming, Ulf Krohn, Christer Lindkvist
  • Patent number: 10816603
    Abstract: Systems and methods for determining available current for a battery in a portable electronic device. One method includes, in response to determining that a received current level of an auxiliary supply rail is equal to or below a predetermined threshold, acquiring a plurality of unloaded voltages for the battery and calculating an unloaded voltage based on the unloaded voltages. The method includes activating a switchable load coupled between the battery and ground, acquiring a plurality of loaded voltages for the battery, and calculating a loaded voltage based on the loaded voltages. The method includes calculating an impedance for the battery based on the unloaded and loaded voltages and an impedance for the switchable load. The method includes determining a current budget based on the impedance, a minimum operating voltage, and a maximum allowable current draw, and adjusting an operating parameter of the portable electronic device based on the current budget.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: October 27, 2020
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Peter J. Bartels, Javier Alfaro, Hugo Garcia, George S. Hanna, Liang Xu
  • Patent number: 10807494
    Abstract: The state of internal resistance is appropriately expressed for a battery being energized. A battery management system includes a battery information acquisition section, a voltage calculation section, a current fluctuation amount calculation section 109 and a resistance correction amount calculation section. The battery information acquisition section acquires a voltage value V of a storage battery being energized. The voltage calculation section acquires a predicted battery voltage value Vmodel of the storage battery being energized by a method different from that of the battery information acquisition section. The current fluctuation amount calculation section calculates a current fluctuation amount dI/dt of the storage battery per unit time.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: October 20, 2020
    Assignee: Vehicle Energy Japan Inc.
    Inventors: Masahiro Yonemoto, Kei Sakabe, Ryohhei Nakao, Keiichiro Ohkawa, Daiki Komatsu
  • Patent number: 10803385
    Abstract: A method of controlling a battery is disclosed. The method includes training an artificial neural network to calculate an internal characteristic parameter value of the battery corresponding to a sensed input/output parameter value using training data, sensing the input/output parameter value of the battery, acquiring the characteristic parameter value corresponding to the sensed input/output parameter value using the trained artificial neural network, and controlling charging or discharging of the battery based on the acquired characteristic parameter value.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: October 13, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Kamin Lee, Suyeon Kim, Minjung Kim
  • Patent number: 10802078
    Abstract: Multiple voltage monitoring circuits each detect the voltage across at least one corresponding cell from among multiple cells. A current monitoring circuit detects the current that flows through the multiple cells. When the length of a period during which the current that flows through the multiple cells is substantially zero exceeds a predetermined judgment time, the current monitoring circuit asserts a detection signal. Upon detecting an assertion of the detection signal, each voltage monitoring circuit measures the voltage across at least one corresponding cell.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 13, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Yoichi Tamegai, Takahiro Shimizu