Battery Monitoring Patents (Class 702/63)
  • Patent number: 11906594
    Abstract: An electric automobile incorporating a secondary battery has a disadvantage such as a difficulty in knowing the remaining capacity accurately and in predicting the time when the remaining capacity becomes zero because of deterioration of the secondary battery. The internal resistance is estimated with high accuracy even when the secondary battery deteriorates. Data used for learning or estimation is a data group (also referred to as data with regenerative charging) that is limited to data acquired within a certain time range around the end of regenerative charging. Such data within the limited range is extracted, used for learning, and subjected to the estimation. Thus, a value of the internal resistance can be output with high accuracy, specifically, with a mean error rate of 1% or less.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: February 20, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Jo Saito, Mayumi Mikami
  • Patent number: 11901517
    Abstract: A method for assessing a state of charge/discharge (SOC/SOD) for a secondary electrochemical cell, the cell having a first operational mode during which the cell is charged from a power supply connected to terminals of the cell, a second operational mode during which the cell is discharged into a load and a rest mode, the method comprising steps of measuring entropy and enthalpy for the electrochemical cell in the course of the first and second operational modes and during rest, and calculating a data representative of the state of charge/discharge (SOC/SOD).
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: February 13, 2024
    Assignee: Yasmi IP PTE. LTD.
    Inventor: Rachid Yazami
  • Patent number: 11899070
    Abstract: An appropriate upper limit current value is set in consideration of steep change in battery voltage in a high-current region caused by the ion concentration gradient in a diffusion layer formed around an interface between an electrode and an electrolyte. An upper limit current calculator 152 includes: a concentration gradient estimator 1523 that estimates a lithium ion concentration gradient in a diffusion layer formed around an interface between an electrode and an electrolyte of a battery, based on a current flowing in the battery, or on the current and a temperature; and an upper limit current determiner 1524 that determines an upper limit current value of the battery, based on the lithium ion concentration gradient. The upper limit current determiner 1524 determines the upper limit current value such that an overvoltage of the battery according to the lithium ion concentration gradient falls within a predetermined range.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: February 13, 2024
    Assignee: VEHICLE ENERGY JAPAN INC.
    Inventors: Ryohhei Nakao, Hiroshi Morikawa, Masashi Naitoh, Masafumi Shiwa, Fanny Matthey
  • Patent number: 11897364
    Abstract: The present solution provides calibration for a battery model of an electric vehicle battery. One or more processors of an electric vehicle coupled with memory can identify, for the electric vehicle, a model configured to determine performance of a battery of the electric vehicle based on a function. The function can generate values for a parameter of the model across a range of states of charges and a range of temperatures. The one or more processors can generate, based on input from a sensor of the electric vehicle, a value of performance of the electric vehicle via the model. The one or more processors can provide an action for the electric vehicle based on the value of the performance.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: February 13, 2024
    Assignee: Rivian IP Holdings, LLC
    Inventors: Yang Hu, Rutooj Deelip Deshpande, Cuong Cao Nguyen
  • Patent number: 11874661
    Abstract: Remaining charge acquisition means of a battery installation system acquires remaining charge information on a remaining charge of each of a plurality of batteries which are installable in an unmanned aerial vehicle. Battery weight acquisition means acquires battery weight information on a weight of each battery. Location acquisition means acquires location information on a movement destination of the unmanned aerial vehicle. Selection means selects, based on the remaining charge information, the battery weight information, and the location information, from among the plurality of batteries, a battery having a remaining charge equal to or more than a battery consumption amount for moving to the movement destination. Processing execution means executes processing for installing the battery selected by the selection means in the unmanned aerial vehicle.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 16, 2024
    Assignee: RAKUTEN GROUP, INC.
    Inventors: Junji Torii, Jun Takizawa
  • Patent number: 11874333
    Abstract: A method of constructing a chart of correlations between a rapid discharge and a slow discharge in order to measure the wear of at least one electrochemical cell, including a measurement phase that includes a training sequence followed by a characterization sequence, and an aging phase. Each of the sequences includes charging-relaxing-discharging-relaxing under controlled conditions and is repeated with different conditions. The time of each discharge is measured. The aging phase includes an alternation of charges and discharges with no intermediate relaxation and is implemented before each repetition of the measurement phase, such that a real capacity is obtained for a plurality of pairs of imposed parameters.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: January 16, 2024
    Assignee: ELECTRICITE DE FRANCE
    Inventors: Aurélien Hascoat, Laurent Torcheux, Luc Gombert, Alain Hita
  • Patent number: 11860235
    Abstract: A battery state estimation apparatus calculates a measured DC resistance value of a DC resistance based on a current change amount and a voltage change amount, which are calculated in a predetermined period using measured current value and voltage value. The battery state estimation apparatus further calculates (i) a non-temperature dependent constant and (ii) a constant of a temperature dependent function based on (i) an estimated DC resistance value and (ii) the measured DC resistance value. The estimated DC resistance value is an estimated value of the measured DC resistance value; the estimated DC resistance value is represented as a sum of (i) the non-temperature dependent constant Ra, which indicates a temperature independent component of the DC resistance of the secondary battery, and (ii) the temperature dependent function Rb, which indicates a temperature dependent component of the DC resistance of the secondary battery.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: January 2, 2024
    Assignee: DENSO CORPORATION
    Inventors: Yuri Sano, Hiroki Fujii, Koji Ohira
  • Patent number: 11846680
    Abstract: A battery resistance diagnosis device includes a current supply unit configured to supply a preset fixed current to a battery cell, a voltage measurement unit configured to measure an open circuit voltage of the battery cell while the fixed current is supplied, an external resistance calculation unit configured to calculate an external resistance value of the battery based on the fixed current and the open circuit voltage of the battery cell, and an abnormality diagnosis unit configured to diagnose a battery abnormality due to a voltage drop by comparing the calculated external resistance value with a preset external resistance value.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: December 19, 2023
    Inventor: Bum Hee Lee
  • Patent number: 11841401
    Abstract: A diagnostic device (100) includes: an acquisition unit (101) that acquires first charging information including a first detected value detected by an external charger (200) during charging of a battery mounted in a vehicle (10) and second charging information including a second detected value detected by the vehicle; and a deterioration estimation unit (105) that estimates a deterioration degree that indicates a degree of deterioration of the battery on the basis of the first charging information and the second charging information.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: December 12, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Naoki Maruno, Yoshikazu Nishida
  • Patent number: 11841773
    Abstract: An information handling system may include at least one processor, a physical storage resource, and a non-volatile memory other than the physical storage resource. The at least one processor may be configured to execute instructions for: storing learned profile data at the physical storage resource; in response to detection of a catastrophic event, copying the learned profile data from the physical storage resource to the non-volatile memory; and subsequent to a remediation event for the catastrophic event, restoring the learned profile data from the non-volatile memory.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: December 12, 2023
    Assignee: Dell Products L.P.
    Inventors: Jagadish Babu Jonnada, Nikhil Manohar Vichare, Ibrahim Sayyed
  • Patent number: 11835582
    Abstract: A secondary battery state estimation device includes: a state measurer configured to measure state variables including a terminal current and a terminal voltage of a secondary battery; an internal resistance calculator configured to calculate internal resistance of the secondary battery; an estimated open-circuit-voltage (OCV) calculator configured to calculate an estimated OCV; an estimated state-of-charge (SOC) calculator configured to calculate an estimated SOC, by using an SOC-OCV characteristic model; a differential estimated SOC calculator configured to calculate a differential estimated SOC; an integrated terminal current calculator configured to calculate an integrated terminal current; and a state-of-health (SOH) calculator configured to calculate an SOH. The SOH that the SOH calculator has calculated in a high SOC state where at least the estimated OCV is equal to or above a first threshold value is entered into an SOH estimation model used to estimate the SOH to update the SOH estimation model.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: December 5, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Toru Kitamura
  • Patent number: 11835589
    Abstract: A method for operating a system including a battery-operated machine having a battery, the method includes continuously providing operating variables of the battery, ascertaining operating features for a current evaluation period depending on characteristics of the provided operating variables, the operating features characterizing a use of the battery in the current evaluation period, ascertaining at least one stress-maximizing operating feature of the ascertained operating features that is associated with a stress factor for the battery using a state of health model, the stress factor having a greatest influence on aging of the battery, and signaling a measure in the battery-operated machine depending on the stress factor.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: December 5, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Christian Simonis, Christoph Woll
  • Patent number: 11835586
    Abstract: A battery management apparatus according to an embodiment of the present disclosure includes a voltage measurer for measuring a voltage of a battery module and output a measured voltage value; a current measurer for measuring a charging current of the battery module and output a measured current value; and a controller for receiving the measured voltage value and the measured current value, estimating a state of charge (SOC) of the battery module based on the measured voltage value and the measured current value, calculating an accumulated change rate by adding up a change rate of the estimated SOC per unit time, and detecting whether the battery module has a defect by comparing the calculated accumulated change rate with a reference change rate.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: December 5, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Dong-Chun Lee, Hyo-Seong An, Seog-Jin Yoon
  • Patent number: 11828812
    Abstract: An apparatus for detecting a defect of a battery pack may disconnect a battery cell at which a defect is detected inside a battery pack to remove a risk factor that may occur from the corresponding battery cell. Risk factors that may cause explosions can be eliminated by discharging the battery cell at which a defect is detected. In addition, the recurrence of the risk factor can be prevented in advance by disconnecting the battery cell at which the defect is detected from the battery pack.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: November 28, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventor: Kyoung-Choon Min
  • Patent number: 11827108
    Abstract: A battery state notification apparatus for an electric vehicle includes a collision detector, an electric leakage detector, a surrounding condition detector, a vehicle exterior sounding device, and a battery state notification device. The collision detector detects a collision of the electric vehicle. The electric leakage detector detects a state of the electric leakage from the drive battery. The surrounding condition detector detects a surrounding condition including the presence of a person around the electric vehicle. The vehicle exterior sounding device outputs a sound to the outside of the electric vehicle. The battery state notification device causes the vehicle exterior sounding device to make notification about the state of electric leakage from the drive battery in a case where the collision detector detects the collision of the electric vehicle and where the surrounding condition detector detects the presence of the person around the electric vehicle.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: November 28, 2023
    Assignee: SUBARU CORPORATION
    Inventor: Tsukasa Murakami
  • Patent number: 11828806
    Abstract: An apparatus for calculating battery power including a time setting unit that sets a target time for using a battery cell, a temperature sensor unit that measures temperature of the battery cell, a resistance calculation unit that calculates resistance of the battery cell, and a power calculation unit that calculates an optimum current value usable without exceeding threshold temperature of the battery cell during the target time, based on the temperature and resistance of the battery.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: November 28, 2023
    Inventor: Seong Jun Yun
  • Patent number: 11820252
    Abstract: A battery diagnostic device includes an acquisition unit that acquires a temperature and an internal resistance of a battery; a determination unit that determines a diagnostic temperature that is a temperature used for a diagnosis of the battery, based on the temperature acquired by the acquisition unit; an estimation unit that estimates the internal resistance of the battery at the diagnostic temperature based on the temperature and the internal resistance acquired by the acquisition unit and the diagnostic temperature determined by the determination unit; and a diagnosis unit that diagnoses the battery based on the internal resistance estimated by the estimation unit.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: November 21, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takaya Koshii
  • Patent number: 11824395
    Abstract: A battery management apparatus for providing more specific information about degradation of a battery cell and changing a control condition according to a degradation pattern of the battery cell. Since not only the degradation degree of the battery cell but also the degradation pattern of the battery cell is estimated, the present state of the battery cell may be more accurately estimated.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: November 21, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Yoon-Jung Bae, A-Ming Cha
  • Patent number: 11820249
    Abstract: A computing system can facilitate cooperation between a utility and a fleet of vehicles. The system can receive a charging requirement from a vehicle. The charging requirement can be based on an available power output capacity of a battery pack of the vehicle. The system can receive solar ramp data from a utility. The solar ramp data can be based on an anticipated power output of a solar energy source. The system can determine a charge plan based on the charging requirement and the solar ramp data and specify a timing of charging or discharging the vehicle. The system can transmit the charge plan to the vehicle. The system can receive load data from the vehicle based on supply or consumption of power by the vehicle and the charge plan.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: November 21, 2023
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Sean Batir, Adam Langton, Henry Pease
  • Patent number: 11807128
    Abstract: A method for brand identification of an electric vehicle to a charging station includes connecting a plug of the charging station to a socket of the electric vehicle, receiving a control pilot signal at the socket from the charging station, terminating the control pilot signal in a variable resistance in the electric vehicle, and toggling the variable resistance in a vehicle pattern that transitions between two charging state resistances. The charging station detects the vehicle pattern and maps the vehicle pattern to a vehicle brand of the electric vehicle. The method includes receiving electrical current to recharge the electric vehicle at the socket.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: November 7, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Richard C. Spina, Vyacheslav Berezin, Hannah Nissenbaum
  • Patent number: 11804613
    Abstract: A method of controlling a fuel battery system of the present disclosure is a method of controlling a fuel battery system, including a measurement process in which a power generation voltage at a predetermined current density of a fuel battery cell is measured, a first calculation process in which a poisoning rate of an electrode catalyst at the power generation voltage measured in the measurement process is calculated from a predetermined relationship between the power generation voltage at the predetermined current density and the poisoning rate of the electrode catalyst of the fuel battery cell, and a second calculation process in which a generation rate of hydrogen peroxide at the poisoning rate of the electrode catalyst calculated in the first calculation process is calculated from a predetermined relationship between the poisoning rate of the electrode catalyst and the generation rate of hydrogen peroxide of the fuel battery cell.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: October 31, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroyuki Sugata
  • Patent number: 11796603
    Abstract: In a method of estimating an internal degradation state of a degraded cell, a measurement system calculates a target capacity characteristic curve by differentiating current capacity by voltage on a target charge curve of a target battery. Further, the method obtains changes of parameters of different types based on a fitting operation that fits the curve and a reference capacity characteristic curve calculated from reference data. In the fitting operation, whichever of low current capacity regions and high current capacity regions of the curve and the curve have a stronger correlation are fit first and whichever of them have a weaker correlation are fit later.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: October 24, 2023
    Assignee: Honda Motor Co., Ltd.
    Inventors: Seiichi Koketsu, Shunsuke Konishi
  • Patent number: 11796599
    Abstract: A battery diagnosis apparatus according to the present disclosure includes a voltage measurer for measuring a cell voltage of each of first to nth battery cells and a processor, wherein n is a natural number of 2 or greater. The processor determines an average cell voltage of each battery cell for a first rest period from a first time point to a second time point, based on the cell voltage of each battery cell measured a first number of times for the first rest period, determines an average cell voltage of each battery cell for a second rest period and diagnoses a fault of each battery cell based on the average cell voltage of each battery cell for the first rest period and the average cell voltage of each battery cell for the second rest period.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: October 24, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun-Chul Lee, Dong-Keun Kwon, Seung-Hyun Kim, An-Soo Kim, Sung-Yul Yoon
  • Patent number: 11789087
    Abstract: According to an aspect, a battery system for controlling a charging current includes a temperature sensor configured to measure a temperature of a first battery, a state-of-charge (SoC) calculation engine configured to calculate an SoC value of the first battery, and a charge current controller configured to determine an adjusted current according to a charge profile based on the temperature and the SoC value, where the charge current controller is configured to transmit current data that indicates the adjusted current to a device.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: October 17, 2023
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Hideo Kondo
  • Patent number: 11774505
    Abstract: Disclosed is an estimation method for the safety state of a battery pack based on deep learning and consistency detection, including: acquiring battery parameters of each single battery in the battery pack in a charging process to be identified; calculating multiple groups of feature data according to the battery parameters; constituting a first matrix by the multiple groups of feature data, and calculating a covariance matrix of the first matrix; inputting the covariance matrix into a first trained fully connected layer, so as to extract principal components of the first matrix and obtain a second matrix; multiplying the first matrix and the second matrix to obtain a third matrix; and inputting the third matrix into a series-connected and trained multi-head self-attention layer and classification layer, to identify whether single battery consistency safety hazards exist in the charging process. This embodiment improves the accuracy of identification.
    Type: Grant
    Filed: December 18, 2022
    Date of Patent: October 3, 2023
    Assignees: CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD, CATARC NEW ENERGY VEHICLE TEST CENTER (TIANJIN) CO., LTD., CHINA AUTOMOTIVE INFORMATION TECHNOLOGY (TIANJIN)
    Inventors: Fang Wang, Liang Yang, Shiqiang Liu, Wenbin Wang, Hong Chang, Xiaole Ma, Weina Wang, Yue Xu
  • Patent number: 11774515
    Abstract: A battery cell error determining apparatus including: a magnetic field measurement unit configured to measure a magnetic field generated by a current flowing in a battery cell, and a control unit configured to calculate a capacity of the battery cell by using a current calculated by the magnetic field measured by the magnetic field measurement unit. The control unit determines an error of the battery cell by using the capacity of the battery cell.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: October 3, 2023
    Inventor: Hyeon Jin Song
  • Patent number: 11774513
    Abstract: A method for predicting a life includes the following. Obtain multiple cycle numbers of a battery and multiple capacity data corresponding to the cycle numbers. Obtain multiple sets of first fitting data by fitting the cycle numbers and the capacity data with a bi-exponential empirical model. Obtain multiple sets of second fitting data by fitting the cycle numbers and the capacity data with a box-cox transformation method. Determine a first capacity error according to the multiple sets of first fitting data and the multiple capacity data. Determine a second capacity error according to the multiple sets of second fitting data and the capacity data. Generate a battery-life prediction model according to the first capacity error, the second capacity error, the multiple sets of first fitting data, and the multiple sets of second fitting data. Determine an RUL of the battery according to a predetermined battery-capacity-value and the battery-life prediction model.
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: October 3, 2023
    Assignees: Shenzhen Hairun New Energy Technology Co., Ltd., Xiamen Hithium Energy Storage Technology Co., Ltd.
    Inventors: Xiang Cai, Changfeng Wu
  • Patent number: 11774510
    Abstract: A battery pack in accordance with an embodiment may include a battery management system (BMS) controlling the battery pack, the BMS includes an internal resistance value calculation module calculating an internal resistance value for each battery cell directly after the battery pack is charged or discharged for a predetermined time, a maximum internal resistance valued battery cell detection module detecting a battery cell having a biggest internal resistance value of the calculated internal resistance values, and a defective battery cell determination module determining a defective battery cell on the basis of a detected number of time each battery cell has the biggest internal resistance value.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: October 3, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventor: Tae Ho Lee
  • Patent number: 11740677
    Abstract: In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may determine a historical discharge rate (dh) from multiple discharge rates a battery of an information handling system (IHS) while the IHS operates on electrical power provided by the battery; receive a current discharge rate (dc) of the battery; determine a full charge capacity correction factor value (Cfcc) associated with the battery; determine a weighting factor (?); determine a difference between a full charge capacity value (FCC) and Cfcc; determine ?·dh; determine (1??)·dc; determine a sum of dh·? and dc·?; determine a quotient value of FCC?Cfcc and ?·dh+(1??)·dc; scale the quotient value based at least on a relative state of charge of the battery to determine an estimated time remaining for the IHS to operate on the electrical power provided by the battery; and display the estimated time remaining.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 29, 2023
    Assignee: Dell Products L.P.
    Inventors: Richard Christopher Thompson, Nikhil Manohar Vichare, Michael Raymond Nechay, Tyler Ryan Cox, Thanh Thien Tran
  • Patent number: 11740298
    Abstract: An apparatus for monitoring health of one or more cells in a battery includes a health monitoring system configured to measure voltage on one or more cells when a waveform is injected into the one or more cells. The waveform is measured at an end of a pulse for each current.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: August 29, 2023
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Eric Joseph Nemanick, Robert G. Will
  • Patent number: 11740290
    Abstract: Energy storage cell qualification and related systems, methods, and devices are disclosed. A method of qualifying rechargeable battery cells includes taking measurements on the rechargeable battery cells, determining specific capacity distributions of the rechargeable battery cells as a function of a number of discharge cycles based on the measurements, determining one or more specific capacity thresholds to separate the specific capacity distributions of the rechargeable battery cells into two or more classifications, and qualifying the rechargeable battery cells into the two or more classifications based, at least in part, on the specific capacity distributions and the one or more specific capacity thresholds. A method of implementing rechargeable battery cells into product manufacturing and qualifying the rechargeable battery cells, and deploying those of the rechargeable battery cells qualified into a first classification of the two or more classifications into the product.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: August 29, 2023
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Boryann Liaw, Yulun Zhang, Qiang Wang
  • Patent number: 11733305
    Abstract: In order to estimate states of health of batteries storing electrical energy significantly indicated by battery capacity and battery internal resistance, by which the estimation of states of health of batteries, deteriorated over time usage, is automated and carried out without a need of any specific test such as a capacity test and the usage of data out of normal operation, it is proposed to collect data from normal operation of a battery storing electrical energy relating to battery-internal physical properties such as a terminal direct current IDC, a terminal direct voltage UDV and a battery cell temperature T due to battery measurements and the determination or estimation, based on this data and a battery model, of a model parameter by solving an optimization-/model parameter estimation-problem and minimizing a difference between the battery model and the battery measurements.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: August 22, 2023
    Inventors: Joachim Bamberger, Amer Mesanovic, Andrei Szabo
  • Patent number: 11733304
    Abstract: A determination apparatus (10) includes: a criteria value acquisition unit (11) that acquires a criteria value which is a performance value of a storage battery at a criteria time; a target value acquisition unit (12) that acquires a target value which is the performance value of the storage battery at a determination time; a usage method data acquisition unit (13) that acquires usage method data indicating a usage method of the storage battery from the criteria time to the determination time; a predicted range computing unit (14) that computes a predicted range of the performance value at the determination time on the basis of the criteria value, the usage method data, and a time elapsed from the criteria time to the determination time; and a determination unit (15) that determines that the storage battery is not to be compensated if the target value is within the predicted.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: August 22, 2023
    Assignee: NEC CORPORATION
    Inventors: Shinichiro Kosugi, Hiroshi Hanafusa, Yusuke Mori
  • Patent number: 11733313
    Abstract: A method for operating a central processing unit which is communicatively connected to a plurality of devices having electrical energy stores, includes determining a data-based state of health model which is trained to assign a state of health to an operating feature point which characterizes operation of a corresponding electrical energy store of the electrical energy stores of the plurality of devices and results from a plurality of operating features, determining operating feature points for the electrical energy stores of the plurality of devices, and selecting at least one of the operating feature points based on state uncertainties of the states of health of all operating feature points of the corresponding electrical energy store, such that the at least one operating feature point has a highest relevance for improving the state uncertainties of the operating feature points determined.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: August 22, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Christian Simonis, Christoph Woll
  • Patent number: 11710859
    Abstract: In some embodiments, a battery management system is provided. The battery management system comprises a connector for electrically coupling a battery to the battery management system, at least one sensor configured to detect a battery state, a programmable chip configured to control at least one of charging and discharging of the battery, and a controller device. The controller device is configured to receive at least one battery state from the at least one sensor; provide the at least one battery state as input to a tanks-in-series model that represents the battery; and provide at least one output of the tanks-in-series model to the programmable chip for controlling at least one of charging and discharging of the battery.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: July 25, 2023
    Assignees: University of Washington, BattGenie Inc.
    Inventors: Akshay Subramaniam, Suryanarayana Kolluri, Caitlin Parke, Manan Pathak, Venkat Subramanian
  • Patent number: 11703547
    Abstract: Software-configurable battery monitoring and management systems and methods provide flexibility in selecting the location where the highest voltage in a block of cells is sensed so as to support control boards to connect to any number of cells. In certain embodiments, battery management is accomplished by measuring cell voltages in a block of cells in a battery stack, determining whether the battery stack comprises a bus bar, determining a sum of the individual cell voltages, and comparing the voltage at the top of a battery stack, including any bus bar, to the sum of the individual cell voltages to obtain a comparison result that may be used to perform a diagnostic procedure.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: July 18, 2023
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Antoine D. Fifield, Jiuhui Wang, Daniel James Miller
  • Patent number: 11701977
    Abstract: A charging apparatus for a vehicle where a terminal (1, FIG. 2) is connected to at least one kerbside power/data unit (9) to provide a power (4) and a data connection (5) to the power/data unit (9), the power/data unit (9) being connected to a nearby vehicle (17) to provide power to charge the vehicle (17) and receive data from the vehicle (17). The fact that the kerbside power/data unit (9) can charge a vehicle (17) using power supplied from a terminal (1, FIG. 2) and can transmit data from the vehicle (17) to the terminal (1, FIG. 2) provides the power and data requirements for connected autonomous vehicles at a kerbside location.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: July 18, 2023
    Assignee: Connected Kerb Limited
    Inventors: Nicholas Alexander Dobie, Stephen James Richardson
  • Patent number: 11686776
    Abstract: A prediction method of battery health includes: obtaining an environment temperature, and a discharge capacity and an operating parameter of a battery; determining an estimated operating parameter in a preset temperature at the discharge capacity according to the environment temperature, the discharge capacity and the operating parameter; determining an estimated capacity of the battery according to the estimated operating parameter; and determining a health level of the battery according to the estimated capacity of the battery and a reference capacity, at the discharge capacity of the battery.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: June 27, 2023
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Yaoyi Tseng
  • Patent number: 11689039
    Abstract: A method for state-of-charge monitoring of an AC battery, in which the battery includes a central controller having a scheduler, measuring sensors and at least two battery modules. The at least two battery modules each have at least one energy storage element and at least two power semiconductor switches, which connect the respective battery module in series or in parallel or in bypass with another battery module. The battery is controlled by the central controller, and a respective switching state of the at least two battery modules is preset by the scheduler. The state-of-charge monitoring is implemented by a control program within the scheduler. During operation of the battery, a state of each individual energy storage element is monitored by virtue of a respective current flow at a respective energy storage element being determined using continued evaluation of measured values of preset battery parameters which are detected by measuring sensors.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: June 27, 2023
    Inventors: Eduard Specht, Jan Kacetl, Tomas Kacetl, Malte Jaensch, Daniel Simon, Stefan Götz
  • Patent number: 11685288
    Abstract: Presented are control systems for operating rechargeable electrochemical devices, methods for making/using such systems, and vehicles with intelligent battery charging and charging behavior feedback capabilities. A method of operating a rechargeable battery includes an electronic controller receiving battery data from a battery sensing device indicative of a battery state of charge (SOC). Using this battery data, the controller determines a number of low SOC excursions at which the battery SOC is below a predefined low SOC threshold and a number of high SOC excursions at which the battery SOC exceeds a predefined high SOC threshold. The controller then determines if the number of low SOC excursions exceeds a predefined maximum allowable low excursions and/or the number of high SOC excursions exceeds a predefined maximum allowable high excursions. If so, the controller responsively commands a resident subsystem to execute a control operation that mitigates degradation of the rechargeable battery.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: June 27, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Michelle H. Wiebenga, Anil Bika, Wei Li, Mark W. Verbrugge, Charles W. Wampler, Chaitanya Sankavaram
  • Patent number: 11680988
    Abstract: A battery system capable of avoiding an over charge with a simple sensor element comprises: a battery module including a battery pack A including a plurality of battery cells connected in series, and a battery pack B including a plurality of battery cells connected in series, connected in parallel, a monitoring unit configured to monitor a condition of the battery module, and a control unit configured to control at least a charge of the battery module. The monitoring unit includes: a first current sensor configured to measure a total current IA of the battery pack A, and a second current sensor configured to measure a total current IB of the battery pack B. The control unit calculates a determining value based on the total current IA and determines an occurrence of an over charge based on the determining value.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: June 20, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masatsugu Kawakami
  • Patent number: 11680987
    Abstract: A processor-implemented battery management method includes: estimating state information of a plurality of battery cells in a battery pack using a first battery state estimation model; determining whether state information of at least one of the plurality of battery cells is to be estimated using a second battery state estimation model; and estimating the state information of the at least one battery cell using the second model, in response to a result of the determining being that the state information of the at least one battery cell is to be estimated using the second model.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: June 20, 2023
    Assignees: Samsung Electronics Co., Ltd., SAMSUNG SDI CO., LTD.
    Inventors: Sangdo Park, Young Hun Sung, Tae Won Song, Tae Kyung Lee
  • Patent number: 11676083
    Abstract: An arrangement planning device includes: a collection unit that collects state information indicative of a present-time state of each of storage batteries; a prediction calculation unit that calculates a performance indicator of a degree of wear of each of the storage batteries from the state information; an amount-of-operation acquisition unit that obtains a required amount of operation of the storage batteries at each of places of use, the storage batteries being to be placed in the places of use; a policy acquisition unit that obtains an operation policy for each of the storage batteries; and a placement location determination unit that determines a placement location for each of the storage batteries from the places of use, wherein the placement location determination unit determines the placement location for each of the storage batteries based on the required amount of operation, the performance indicator, and the operation policy.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: June 13, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shigeaki Esaka, Toshiaki Hirota, Keiichi Iguchi, Shuji Nakayama, Makoto Takano
  • Patent number: 11675017
    Abstract: A method for determining an internal-resistance based state-of-health of a battery in a device includes determining the internal-resistance based state-of-health of the battery using a hybrid state-of-health model including a physical ageing model and a correction model by (i) determining, based on an electrochemical battery model, a physical state-of-health according to one or more operating parameters of the battery using the physical ageing model, (ii) mapping operating features derived from the one or more operating parameters onto a correction parameter using the correction model that includes a data-based configuration, and (iii) applying the correction parameter to the physical state of health to determine the internal-resistance based state-of-health. The method further includes determining a modeled battery voltage, and determining a characteristic of the modeled battery voltage using an adaptation model.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: June 13, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Christoph Kroener, Christian Simonis, Tobias Huelsing
  • Patent number: 11662388
    Abstract: The present disclosure relates to an apparatus for estimating a battery free capacity, and more particularly, an apparatus for estimating a free capacity of a half cell of a battery. According to the present disclosure, it is possible to accurately estimate a free capacity of a half cell without inserting a reference electrode by revising an entire SOC region of a half cell by using an inflection point detected based on SOC-voltage data of a full cell and a half cell of the battery, respectively, and then estimating SOC-voltage data based on a SOC difference between the entire SOC regions before and after the revision.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: May 30, 2023
    Assignee: LG Energy Solution, Ltd.
    Inventors: Yoon-Jung Bae, Dae-Soo Kim, Ji-Yeon Kim, Dong-Kyu Kim, Jae-Hyun Lee, Jin-Hyung Lim, Young-Geun Choi
  • Patent number: 11662796
    Abstract: In some embodiments, an electronic device displays one or more representations of power usage of the electronic device, including across various periods of time and subperiods of time within those periods. In some embodiments, the displayed information reflects power usage both for periods of the display being on and periods of the display being off. In some embodiments, the displayed information includes power usage attributed to various mobile applications running on the electronic device. In some embodiments, the electronic device displays recommendations to reduce the usage of power by the electronic device, which a user has the option of applying. In some embodiments, the electronic device displays prose insight into power usage, indicating causes of the power usage.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: May 30, 2023
    Assignee: Apple Inc.
    Inventors: Abhinav Pathak, Amit K. Vyas, Albert S. Liu, Conor J. O'Reilly, Anand Ramadurai, Craig M. Federighi, Aakriti Mittal, Daniel J. Etter, Tianhe Wu, Patrick L. Coffman, Nicholas D. Felton
  • Patent number: 11662385
    Abstract: A method and a system of lithium battery state of charge (SOC) estimation based on second-order difference particle filtering belonging to the technical field of battery management are provided. The method includes the following steps: building a second-order RC battery model of a lithium battery; performing model parameterization by using a least squares algorithm with a forgetting factor; and generating an importance density function through a second-order central difference Kalman filtering (SCDKF) algorithm, improving a particle filtering algorithm to obtain a second-order difference particle filtering (SCDPF) algorithm, and performing SOC estimation on a lithium battery by using the SCDPF. The estimation method provided by the disclosure is accurate and has greater estimation accuracy than an unscented particle filtering algorithm (UPF), an unscented Kalman filtering algorithm (UKF), and an extended Kalman filtering algorithm (EKF). An SOC value of the lithium battery may thus be accurately estimated.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: May 30, 2023
    Assignee: WUHAN UNIVERSITY
    Inventors: Yigang He, Yuan Chen, Zhong Li, Liulu He
  • Patent number: 11656289
    Abstract: This disclosure provides a method and an apparatus for correcting a state of health of a battery, a battery management system, and a storage medium, and relates to the field of battery technologies. The method includes: determining whether a current voltage value of a battery cell is within a correction OCV section of the battery cell; if yes, using the current voltage value of the battery cell as a correction voltage value; and acquiring an SOC correction value, and correcting a state of health (SOH) of the battery cell. According to the method, the apparatus, the battery management system, and the storage medium in this disclosure, reliability of an SOH correction result is improved, thereby providing accurate estimation of the state of health of the battery, a prolonged service life of the battery, and better user experience.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: May 23, 2023
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Mingshu Du, Shichao Li, Shenzhi Tang, Yanhua Lu, Wei Zhang
  • Patent number: 11650253
    Abstract: Disclosed is a state estimation method for a power battery formation process based on convex space filtering, belonging to the technical field of power battery manufacturing. The method performs state estimation on a time delay system by a filtering method, and an iterative replacement method is provided for converting the state quantity at a time k to the state quantity at a time k?h and subsequent items, so as to combine time delay items, thereby avoiding the problem that the dimension is increased when a state matrix A and a state matrix Ah of a time-delay state quantity are subsequently combined into a new state matrix, and reducing the computation complexity and computation time in subsequent computations. Moreover, the estimation accuracy is also improved to a certain extent because of the cancellation of the same items in the iterative replacement.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: May 16, 2023
    Assignee: Jiangnan University
    Inventors: Ziyun Wang, Yan Wang, Nanjiang Li, Zhicheng Ji, Yacong Zhan, Yuqian Chen, Zimeng Zhang, Lin Cheng, Weijie Shi, Yinquan Yu, Leiting Huo
  • Patent number: 11644508
    Abstract: Disclosed is a method and apparatus for measuring a battery state. The method includes determining an operational mode of a battery; measuring a battery state of the battery using an electrochemical model in response to the battery determined to be operating in a low rate mode, and measuring the battery state using a modified electrochemical model based on a characteristic of the battery, in response to the battery determined to be operating in a high rate mode.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: May 9, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Won Song, Jinho Kim, Young Hun Sung