With Battery Or Cell Condition Monitoring (e.g., For Protection From Overcharging, Heating, Etc.) Patents (Class 320/136)
  • Patent number: 11404887
    Abstract: An apparatus includes a charging circuit configured to electrically connect to a plurality of batteries during manufacture of a set of batteries that includes the plurality of batteries. The apparatus further includes a battery bank configured to supply charge to the plurality of batteries during a formation process of each battery of the plurality of batteries and to receive the charge from the plurality of batteries during the formation process. The battery bank has at least one attribute that enables the battery bank to concurrently charge, for each plurality of batteries of the set of batteries, a particular number of batteries based on at least a threshold charging rate and to concurrently discharge, for each plurality of batteries of the set of batteries, the particular number of batteries based on at least a threshold discharging rate.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: August 2, 2022
    Assignee: Techtronic Cordless GP
    Inventors: Denis Gaston Fauteux, Aditya Subramanian
  • Patent number: 11404920
    Abstract: A wireless charging receiver includes a controller configured to determine that a first overvoltage threshold is met and based thereon enable a first switch to couple an output of a rectifier to electrical ground through a first resistor, to determine that a second overvoltage threshold is met and based thereon enable receive resonant circuit switches to short circuit a receive resonant circuit, to determine that a hysteresis threshold is met and based thereon disable the receive resonant circuit switches to open circuit the receive resonant circuit, and to determine that a hysteresis cycle threshold is met and that the receive resonant circuit switches are disabled and based thereon enable the second switch to couple the second resistor to the electrical ground and to communicate to wireless charging transmitter to decrease the power level on wireless charging receiver side.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: August 2, 2022
    Assignee: STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.
    Inventor: Michal Toula
  • Patent number: 11397200
    Abstract: A technique of reducing errors in measurement of a charging/discharging current in a battery module including a plurality of secondary batteries. A current measuring apparatus according to the present disclosure is included in a battery pack including a bus bar on a charging/discharging path to measure a current flowing through the charging/discharging path.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: July 26, 2022
    Inventor: Dong-Hyeon Kim
  • Patent number: 11391777
    Abstract: A battery monitoring module may be arranged in such a way as to receive a sensor signal from a light sensor configured to detect light within a battery module. The battery monitoring module may determine, using processing circuitry, a light characteristic within the battery module based on the sensor signal. The battery monitoring module may determine, using processing circuitry, a battery condition of the battery module based on the light characteristic.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: July 19, 2022
    Assignee: Rivian IP Holdings, LLC
    Inventors: Emil Yu-ming Chao, Charles Ed Chang
  • Patent number: 11378624
    Abstract: A battery pack can include a battery and a battery management system for detecting a charge amount of the battery, setting an indicated charge amount as the charge amount if the charge amount of the battery is smaller than a first threshold value, and setting the indicated charge amount as that of the following equation 1 when the charge amount of the battery is greater than or equal to the first threshold value. Indicated charge amount=actual charge amount×correction rate=actual charge amount×(1+((100/second threshold value)?1)/(second threshold value?first threshold value)×(actual charge amount?first threshold value))),??[Equation 1] wherein the actual charge amount is the charge amount of the battery.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: July 5, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Yongdai Lee
  • Patent number: 11356051
    Abstract: A solar powered charging station uses photovoltaic panels to generate electrical energy for use directly and/or for storage in electrical batteries for use during night operation. The station includes parallel electrical circuits which permit the station to operate during daylight hours in the event of a failure of the battery or the battery charging system. The station is designed to provide a kit embodiment having light weight, easily transportable components. The parallel circuitry is adaptable for use with other forms of electrical power generation having a minimal carbon footprint.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: June 7, 2022
    Assignee: Skyhook Solar Corp.
    Inventors: Daniel Delano, William Gilmore, Joseph Goodman, Chris Needham, Frank Oudheusden
  • Patent number: 11289741
    Abstract: A method for discharging a battery module, having at least two battery cells, of a battery having at least two battery modules, wherein the battery cells of each of the battery modules are arranged next to one another and are mechanically and electrically connected to one another, wherein, in each of the battery modules, the respective battery cells are individually activated and deactivated in terms of an energy storage function by a cell switch unit, wherein the battery cells of the battery module to be discharged are selectively electrically coupled successively to a discharge device by the cell switch unit and starting from one predefined battery cell, in order to individually successively electrically discharge the battery cells in order to discharge the battery module.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: March 29, 2022
    Assignee: AUDI AG
    Inventors: Michael Hinterberger, Berthold Hellenthal, Heinz-Willi Vassen, Peter Pilgram
  • Patent number: 11264792
    Abstract: A secondary battery protection circuit for protecting a secondary battery, including: a low-voltage detecting circuit configured to detect a voltage across the secondary battery that is lower than a second voltage for low voltage detection, the second voltage being set to be lower than a first voltage for overdischarge detection; and a switching circuit configured to cause a gate of a charge control NMOS transistor to be fixed at a potential at a high side power supply terminal, upon detecting, by the low-voltage detecting circuit, that the voltage across the secondary battery is lower than the second voltage for low voltage detection.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: March 1, 2022
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventor: Takashi Takeda
  • Patent number: 11215668
    Abstract: Apparatus and associated methods relate to a system or method of precision battery charge measurement. Some embodiments may include precise charge and discharge control based on precision battery voltage and current sensing. In an illustrative example, energy either going in or out of the battery may be multiplied or computed using novel circuitry. In various embodiments, energy may be computed in a precision energy small unit determined as a percentage of total battery capacity. In an illustrative example, the precision unit may be, for example, 0.0018% of the total battery capacity. In some embodiments, the energy meter value may be in digital form, so it can be stored in memory and transmitted to external users as desired using USB type C or any other method. Various embodiments may advantageously provide extended battery life, based on using the measured energy meter value to maintain the state of charge of the battery.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: January 4, 2022
    Inventors: David Chee-Fai Soo, Mohammad Yunus
  • Patent number: 11190039
    Abstract: A method of charging a battery and a system using the same are provided. The method includes: detecting a terminal voltage of a battery; When the terminal voltage is less than a voltage threshold, performing quick charging which includes: calculating a rising rate of the terminal voltage, comparing the rising rate with a rising rate reference value, and controlling the terminal voltage according to the comparison result; and when the terminal voltage is not less than the voltage threshold, performing low current floating charging which includes: intermittently charging the battery by a predetermined floating charging period, calculating a falling rate of the terminal voltage, comparing the falling rate with a falling rate reference value, controlling the terminal voltage according to the comparison result, in a first time duration of the floating charging period, and suspending charging in a second time duration of the floating charging period.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: November 30, 2021
    Assignee: Delta Electronics, Inc.
    Inventors: Liang Xiong, Zhenji Liu, Wen-Kang Hsu
  • Patent number: 11180047
    Abstract: A method for testing a charging process of an electrically powered motor vehicle having an on-board power system, wherein said on-board power system includes at least one charge connection for connecting the on-board power system to a charging station and is connected to at least one electric power storage device, wherein an adapter having at least one discharge connection is additionally connected to the on-board power system for testing the charging process, wherein electric power for testing the charging process is conducted via the at least one charge connection into the on-board power system, wherein a primary portion of said electric power is discharged again from the on-board power system via the at least one discharge connection of the adapter.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: November 23, 2021
    Assignee: AUDI AG
    Inventor: Daniel Ruppert
  • Patent number: 11155180
    Abstract: A vehicle-to-building power system allows a vehicle to power a building. The system includes a power-receiving unit remote from a vehicle. The unit includes a cable configured to mate with a vehicle port and support high-voltage electrical loads between the vehicle and the power-receiving unit. The unit further includes a high-voltage inverter configured to convert a direct current (DC) power supplied from a vehicle battery to an alternating current (AC) power compatible with a building electrical system, and a high-voltage DC bus electrically connected to the inverter. The bus has one or more contactors that electrically connect the cable to the high-voltage inverter when closed and electrically disconnect the cable and the high-voltage inverter when open.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: October 26, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Rachel Blaser, Thomas J. Coupar
  • Patent number: 11152815
    Abstract: The disclosure describes a solar home system that may be used for the following purposes in the household: lighting, mobile phone and other electronic device charging through Universal Serial Bus (USB) ports, receiving television signal through digital TV signal, receiving internet information through the wireless network signal and powering electronics through an inverter. The present invention is very beneficial for households who do not have access to electricity from the electricity grid, households that have unreliable access to electricity, or households that choose not to utilize electricity directly from the grid.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: October 19, 2021
    Assignee: THE KGS GROUP LLC
    Inventor: Marielle Damara Fillit
  • Patent number: 11133685
    Abstract: An electronic device charges a battery. The electronic device includes a charging circuit, a power supply controller, and a detector. The charging circuit charges the battery. The power supply controller controls charging of the battery performed by the charging circuit. The detector detects information about a use environment where the electronic device is used. When the power supply controller determines that the use environment for the electronic device is a specific environment based on the information detected by the detector, the power supply controller regulates the charging performed by the charging circuit.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: September 28, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Junya Kamijima
  • Patent number: 11128153
    Abstract: The present invention relates to a charging and discharging apparatus of a battery, and more particularly, to a charging and discharging apparatus of a battery capable of evenly charging respective battery cells whose charging and discharging characteristics are different from each other because capacities and internal resistances of the respective battery cells connected to each other in series do not completely coincide with each other, in an apparatus of charging and discharging a battery in which a plurality of battery cells are connected to each other in series.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: September 21, 2021
    Assignee: GREEN POWER CO., LTD.
    Inventors: Jung Goo Cho, Jae Bong Kang
  • Patent number: 11128154
    Abstract: A charging method and a related device are provided. A charge protection apparatus includes a micro control unit MCU, a current detection circuit, a gating circuit, and an I/O interface. The current detection circuit detects an external charging current flowing through a power cable. The current detection circuit transmits the external charging current to the MCU. The MCU transmits the external charging current to a user terminal by using the I/O interface, so that the user terminal calculates a current difference between the external charging current and an internal charging current detected by the user terminal, and determines, based on the current difference, whether to generate a circuit control command. The MCU receives the circuit control command sent by the user terminal, and controls, according to the circuit control command, the gating circuit to be in a closed state or an open state.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: September 21, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hui Si, Haohui Long, Jianping Fang, Yanlin Wang, Taixiang Liu
  • Patent number: 11119157
    Abstract: Disclosed is a method and apparatus for estimating parameters of a battery equivalent circuit model. The battery equivalent circuit model includes a first and second resistors and a capacitor. The method includes reading a pulse discharge profile corresponding to a parameter estimation condition from a plurality of pre-stored pulse discharge profiles, the pulse discharge profile including a first number of terminal voltages sequentially measured from a battery having a specific SOC in a predetermined cycle while the battery is discharged with a specific constant current from an OCV corresponding to the specific SOC to a lower limit of discharge voltage at a specific temperature, extracting a second number of terminal voltages between the OCV and a threshold voltage from the first number of terminal voltages, and estimating resistance values of the first and second resistors based on the OCV, the constant current, and the second number of terminal voltages.
    Type: Grant
    Filed: November 10, 2018
    Date of Patent: September 14, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Young-Jin Kim, Sun-Young Cha
  • Patent number: 11121415
    Abstract: A battery monitoring circuit measures individual battery cell voltages and temperatures of a plurality of series-connected battery cells utilizing an Analog Front End, a controller that collects and analyzes the data digitally transferred to it by the Analog Front End, and a Fuel Gauge configured to measure a single battery cell.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: September 14, 2021
    Assignee: Litech Laboratories, Inc.
    Inventors: Robert L. Myers, Alexei Tikhonski, James P. Novak
  • Patent number: 11083226
    Abstract: The inhalation component generation device comprises: a load that vaporizes or atomizes an inhalation component source by electric power from an electric power source; a controller that obtains a value representing a remaining amount of the electric power source, and obtains an operation requesting signal to the load and generates an instruction for operating the load; and a user interface. The controller is configured to cause the user interface to perform a second notification when the value representing the remaining amount of the electric power source is less than a first threshold value and equal to or greater than a second threshold value that is less than the first threshold value, and cause the user interface to perform a third notification when the value representing the remaining amount of the electric power source is less than the second threshold value.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: August 10, 2021
    Assignee: JAPAN TOBACCO INC.
    Inventors: Manabu Yamada, Manabu Takeuchi, Takeshi Akao, Takuma Nakano, Hajime Fujita
  • Patent number: 11075517
    Abstract: Disclosed is a rapid short-circuit protection circuit of charger at output end. With the short-circuit protection circuit adopted at an output end of a battery charger, MOS switch transistors in a battery power supply circuit may not burn out when an output end VOUT of the battery charger is short-circuited, and thus a good short-circuit protection effect is rendered.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: July 27, 2021
    Assignees: SHENZHEN CLICK TECHNOLOGY CO., LTD., CLICK TECHNOLOGY (XINFENG) CO., LTD., HUIZHOU CITY CLICK TECHNOLOGY CO., LTD.
    Inventors: Tongcheng Li, Mingliang Zhou
  • Patent number: 11072258
    Abstract: Methods and systems are provided for reliably providing a prognosis of the life-expectancy of a vehicle battery. A state of degradation of the battery is predicted based on a rate of convergence of a metric, that is derived from a sensed vehicle operating parameter, towards a defined threshold, determined based on past history of the metric. The predicted state of degradation is then converted into an estimate of time or distance remaining before the component needs to serviced, and displayed to the vehicle operator. Vehicle control and communication strategies may be defined with respect to the predicted state of degradation.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 27, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Pankaj Kumar, Imad Hassan Makki, Fakhreddine Landolsi, Mark Eifert, Sheida Malekpour, David W. Linden
  • Patent number: 11073559
    Abstract: An electrical system comprises at least one high-voltage battery, at least one DC link capacitor and at least two power relays, whereby one power relay is arranged between a positive connector of the high-voltage battery and the DC link capacitor, while the other power relay is arranged between a negative connector of the high-voltage battery and the DC link capacitor, whereby the electrical system has a galvanically isolated DC/DC converter that is connected to a voltage source in the electrical system, whereby the DC/DC converter is configured such that it can transmit electric energy to a high-voltage side with the DC link capacitor in order to pre-charge the DC link capacitor, whereby the electrical system has a diagnostic device to test the power relays, whereby the diagnostic device has switchable voltage sensors.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: July 27, 2021
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Jens Uwe Müller, Lan Dang Hung, Markus Stolz, Hendrik Gerth
  • Patent number: 11056729
    Abstract: Realized is a vehicular battery monitoring device or a vehicular battery monitoring system for which the number of wires can be reduced, and that can transmit information using a characteristic transmission path. A battery monitoring device includes: a detection unit configured to detect at least one of a voltage at a predetermined position of a battery or a temperature of the battery; and a wireless communication unit configured to transmit, using a wireless communication method, detection information that indicates at least one of the voltage and the temperature of the battery based on a detection result of the detection unit, at least to another battery monitoring device provided in a vehicle.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: July 6, 2021
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Shinichiro Sato
  • Patent number: 11052783
    Abstract: System and method of controlling operation of a device having multiple rechargeable packs configured to store energy. The multiple rechargeable packs include at least one primary pack characterized by a first capacity and at least one auxiliary pack characterized by a second capacity, the first capacity being greater than the second capacity. A controller is configured to selectively command one or more of the multiple rechargeable packs to begin at least one of discharging and charging. When an estimated end of trip time is less than or equal to a discharging time of the at least one auxiliary pack, the discharging of the at least one auxiliary pack is begun. When the estimated end of trip time is greater than the discharging time, the discharging is delayed until the respective state of charge of the at least one primary pack reaches a first threshold.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: July 6, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: James C. Gibbs, Brandon R. Jones, Garrett M. Seeman
  • Patent number: 11048324
    Abstract: The present disclosure relates to a method for controlling a low-consumption mode of an electronic switching unit, which is supplied with an electrical operating current via a current path, wherein a circuit-external power control unit transmits an activation command for activating the low-consumption mode to the switching unit. A measuring device for generating a consumption signal that is a function of an amperage of the operating current being operated in the current path is disclosed. After the activation command has been transmitted the power control unit uses the consumption signal to determine whether the amperage is still above a threshold value that is specified for the low-consumption mode, and in this case a predetermined emergency measure is initiated to force the low-consumption mode and/or to reduce the amperage.
    Type: Grant
    Filed: September 8, 2018
    Date of Patent: June 29, 2021
    Assignee: Audi AG
    Inventors: Christoph Dalke, Daniel Depner
  • Patent number: 11034243
    Abstract: A vehicle battery controller based on a reduced order model is provided. The controller identifies a value of a current output by the battery that supplies power to the vehicle. The controller provides the value of the current to a solid diffusion component, an electrolyte transport component, and a electrolyte and solid potential component. The solid diffusion component can update a solid concentration model of the battery. The electrolyte transport component can update an electrolyte concentration model of the battery. The electrolyte and solid potential component can update an electrolyte potential model and a solid potential model of the battery. The controller component can determine a value of a voltage of the battery and a value of a heat generation rate of the battery. The controller component can generate a command to manage a performance of the battery.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: June 15, 2021
    Assignees: Chongqing Jinkang New Energy Vehicle Co., Ltd., SF Motors, Inc.
    Inventors: Bin Wu, Ying Liu, Yifan Tang
  • Patent number: 11009555
    Abstract: Provided are a battery management system and method for optimizing an internal resistance of a battery. The battery management system includes: a current measurement unit configured to measure a discharging current of the battery; a memory configured to store a plurality of voltage-current characteristic profiles; and a control unit operatively connected to the current measurement unit and the memory and configured to determine a reference profile from the plurality of voltage-current characteristic profiles based on a state of charge and a temperature of the battery. The reference profile includes a start point, an end point, and a plurality of intermediate points positioned between the start point and the end point.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: May 18, 2021
    Assignee: LG Chem, Ltd.
    Inventor: Sun-Young Cha
  • Patent number: 11009554
    Abstract: A sensor module includes a sensor, a wireless communication unit notifying a measurement value obtained by the sensor and a value based on the measurement value, a battery supplying a voltage to an electric circuit including the sensor and the wireless communication unit, a voltage measurement unit measuring an end-to-end voltage of the battery at a predetermined measurement interval, and a measurement interval change unit changing the measurement interval of the voltage measurement unit, wherein the measurement interval change unit sets, if the end-to-end voltage measured by the voltage measurement unit is equal to or greater than a first specified voltage value, the measurement interval to a first time interval, and the measurement interval change unit sets, if the end-to-end voltage measured by the voltage measurement unit is lower than the first specified voltage value, the measurement interval to a second time interval shorter than the first time interval.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 18, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Masashi Nakagawa, Touichi Okuno
  • Patent number: 10993205
    Abstract: Example embodiments involve modular paging device to pass incoming messages off, through Wi-Fi or cellular data, to a central server. This central server handles a response request, and sends the message to a corresponding pager address found within a pager network, allowing a closed loop two-way communication handled through a graphical user interface which may be displayed at the client device.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: April 27, 2021
    Assignee: Statam Systems lnc.
    Inventors: Stephen Michael Okajima, Arman Serebrakian, Ara Nazarian
  • Patent number: 10989759
    Abstract: The present application provides a method and apparatus for correcting a state of charge. The method for correcting a state of charge comprises: determining an operating state of a battery cell, wherein the operating state comprises a discharging state or a charging state; and determining a corrected state of charge of the battery cell according to an acquired current open circuit voltage of the battery cell, an acquired current accumulative capacity of the battery cell, an accumulative capacity correspondence relationship corresponding to the operating state of the battery cell, and an open circuit voltage curve corresponding to a limit initial state of charge, wherein the accumulative capacity correspondence relationship comprises a correspondence relationship between a pre-measured open circuit voltage and an accumulative capacity threshold. A technical solution of the present application can be used to improve the accuracy of calculation of a state of charge.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: April 27, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Mingshu Du, Shichao Li, Shenzhi Tang, Li Tan, Yanhua Lu, Wei Zhang
  • Patent number: 10978886
    Abstract: According to one embodiment, a BBU includes an array of battery cells, a DC/DC converter coupled to the battery cells, and a first switch logic coupled to the battery cells and the DC/DC converter. The first switch logic is configured to switch the BBU to operate between a first mode and a second mode. When operating in the first mode, the first switch logic causes the output voltage of the DC/DC converter to be provided to an external load. When operating in the second mode, the first switch logic causes the output voltage of the DC/DC converter to be coupled to an internal load for the purpose of determining the health of the battery cells.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 13, 2021
    Assignee: BAIDU USA LLC
    Inventors: Huawei Yang, Yuan Cao, Tianyi Gao
  • Patent number: 10955887
    Abstract: Systems and methods are provided for managing power to devices in a virtual power delivery network, using a centralized power allocation controller. The method of managing power consumption of a plurality of devices includes receiving device information from one or more devices connected in a virtual power delivery network. The method further includes managing power consumption of the one or more devices in the virtual power delivery network based on the received device information.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: March 23, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gregory J. Boss, Andrew R. Jones, P. Daniel Kangas, Kevin C. McConnell, John E. Moore, Jr.
  • Patent number: 10951050
    Abstract: An adaptive charger can include: a power converter configured to receive an input current from an external power supply, and to generate an output current as a charging current to a load; a current feedback loop configured to compare a first detection signal that represents the input current against a first current reference signal, and to generate a first error signal, where the power converter is configured to regulate the input current according to the first error signal; and the current feedback loop being configured to determine an overload state of the external power supply according to an input voltage of the power converter, where the charger is configured to enter a current limit state when the external power supply is determined to be in the overload state, and where the first current reference signal is gradually reduced until the external power supply recovers to a non-overloaded state.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: March 16, 2021
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventor: Shuai Cheng
  • Patent number: 10923777
    Abstract: An energy storage module for a vehicle includes an energy storage enclosure adapted to accommodate an energy storage cell, the energy storage enclosure having an enclosure wall, an optical sensor including an optical fiber, an optical receiver and an optical emitter, the optical fiber attached to an inner side of a first enclosure wall along a distance of a portion of the inner side. The optical receiver is configured to detect an optical signal transmitted through the optical fiber, and the optical sensor is configured to detect an alteration of the optical signal being indicative of a deformation.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: February 16, 2021
    Assignee: VOLVO CAR CORPORATION
    Inventor: Jianfeng Yao
  • Patent number: 10905365
    Abstract: A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: February 2, 2021
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Ning Yang, Raghavendhar Gautham, Rajiv Shah
  • Patent number: 10905629
    Abstract: A CPR chest compression device with a cooling exhaust flow path configured to direct cooling air flow through the device. A CPR chest compression device with a battery retainer interoperable with the control system to provide for controlled shut-down when an operator attempts to remove the battery during operation.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: February 2, 2021
    Inventors: Byron J. Reynolds, David T. Lawrence, Ian Smith
  • Patent number: 10910856
    Abstract: A discharge apparatus is provided. A second discharge path is provided by a second discharge circuit started by a voltage across on a first discharge path provided by a first discharge circuit, so as to discharge a load capacitor.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: February 2, 2021
    Assignee: PEGATRON CORPORATION
    Inventor: Yu-Chung Chang
  • Patent number: 10910858
    Abstract: Systems and methods for charging and discharging a plurality of batteries are described herein. In some embodiments, a system includes a battery module, an energy storage system electrically coupled to the battery module, a power source, and a controller. The energy storage system is operable in a first operating state in which energy is transferred from the energy storage system to the battery module to charge the battery module, and a second operating state in which energy is transferred from the battery module to the energy storage system to discharge the battery module. The power source electrically coupled to the energy storage system and is configured to transfer energy from the power source to the energy storage system based on an amount of stored energy in the energy storage system. The controller is operably coupled to the battery module and is configured to monitor and control a charging state of the battery module.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: February 2, 2021
    Assignee: 24M Technologies, Inc.
    Inventors: Tony L. Taylor, Naoki Ota, Taison Tan
  • Patent number: 10901042
    Abstract: A method for determining a state of charge (SOC) of a rechargeable battery cell includes determining a rate-invariant charge/discharge relationship between an open-circuit voltage (OCV) and a state of charge (SOC). This includes a first finite-rate voltage scan following a reduction branch of a relationship between OCV and the SOC, and executing a second finite-rate voltage scan following an oxidation branch of a relationship between OCV and the SOC. A rate-dependent charge/discharge relationship between the OCV and the SOC is determined during scanned voltage transitions between the reduction and oxidation branches. A present SOC state is determined based upon an electrical potential, the rate-invariant charge/discharge relationship between the OCV and the SOC, and the rate-dependent charge/discharge relationship between the OCV and the SOC during a voltage-scan reversal that occurs when the scanned voltage transitions between the reduction and oxidation branches.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 26, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Mark W. Verbrugge, Daniel R. Baker, Xingcheng Xiao
  • Patent number: 10871523
    Abstract: A battery monitoring apparatus includes a first voltage detector provided to a first short circuit connected to a target cell, a second voltage detector connected to the target cell and provided to a second short circuit, a switch forming a closed circuit connected to an assembled battery and including a resistor, a third voltage detector detecting an inter-terminal voltage between positive and negative electrode terminals of the assembled battery, a switch abnormality determination section determining, in a state where the switch is driven in a closing direction, presence or absence of abnormal opening of the switch based on a difference between detection voltages obtained by the first and second voltage detectors, and a disconnection determination section determining, in the state where the switch is driven in the closing direction, presence or absence of disconnection at the assembled battery based on a detection voltage obtained by the third voltage detector.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 22, 2020
    Assignee: DENSO CORPORATION
    Inventor: Takashi Inamoto
  • Patent number: 10871520
    Abstract: One embodiment of the invention includes a battery sense system. The system includes a temperature sensor configured to measure a temperature of a battery and a memory configured to store predetermined data associated with steady-state and transient behaviors of the battery relative to a depth of discharge (DOD) of the battery. The system also includes a controller configured to measure a voltage of the battery and to calculate a state of charge (SOC) of the battery based on the voltage, the predetermined data, and the temperature.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: December 22, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yevgen Barsukov, Yandong Zhang, Dale Allen Blackwell
  • Patent number: 10859633
    Abstract: The disclosure presents a method and a hearing aid with an improved method for updating a discharge charging profile of a battery.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 8, 2020
    Assignee: OTICON A/S
    Inventor: Jess Christensen
  • Patent number: 10833359
    Abstract: A sulfide solid electrolyte material includes a sulfide layer and an oxide layer disposed on the sulfide layer. The sulfide layer contains a sulfide that contains lithium, phosphorus, a halogen, and sulfur. The oxide layer contains an oxide that contains lithium, phosphorus, a halogen, and oxygen. In a 31P-NMR spectrum of the sulfide solid electrolyte material, a first peak component, which is defined within a first chemical shift range from 87.6 to 88.4 ppm, has an intensity equal to or less than 0.42 times that of a second peak component, which is defined within a second chemical shift range from 83.6 to 84.4 ppm.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: November 10, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Izuru Sasaki, Kazuyoshi Honda
  • Patent number: 10832846
    Abstract: A solenoid control circuit can make measurements during operation to determine the state of a solenoid and can provide for rapid re-energization of a solenoid upon detection of a dropout condition. A method of controlling a solenoid can include closing an input switch, cycling a low side switch based on voltage drop across a resistor, opening the input switch after a time interval, closing the low side switch and driving a discharge switch to control the discharge current rate from an energy storage device to an inductor. The method can include determining a condition of the inductor based on a time interval between actuation of comparators and maintaining a level of energy in the energy storage device sufficient to cause the inductor to produce a magnetic field for actuating a valve.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: November 10, 2020
    Assignee: Automatic Switch Company
    Inventor: John J. Haller
  • Patent number: 10804721
    Abstract: An emergency power supply control system includes a main control module, a power storage module, a charge module, and a discharge module. The main control module is respectively connected to the power storage module, the charge module, and the discharge module. The charge module, the power storage module, and the discharge module are connected in sequence. The power storage module includes a power storage control unit and a power storage management unit, an input end of the power storage management unit is connected to an output end of the charge module, an output end of the power storage management unit is connected to an input end of the discharge module. The input end of the power storage management unit is connected to an output end of the power storage control unit, an input end of the power storage control unit is connected to the main control module.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: October 13, 2020
    Assignee: SHENZHEN SEGRE ELECTRONIC CO., LTD.
    Inventor: Qingjin Liu
  • Patent number: 10797499
    Abstract: Systems, methods, and devices of managing a battery assembly used to power an object are provided to discharge a battery assembly for a safe and long-term storage. A controlled self-discharge of the battery assembly may be initiated when the power to the object is turned off for a certain length of time or the battery assembly is not in use for a threshold length of time. The controlled self-discharge may be terminated if the battery assembly reaches a threshold voltage value or the battery is in use again during the self-discharge.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: October 6, 2020
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Tao Zhao, Juncheng Zhan, Yuancai Liu, Lei Wang, Wentao Wang
  • Patent number: 10797501
    Abstract: A battery charging method and apparatus are provided. The battery charging apparatus determines, in a present charging operation, a variation in a charging current to charge a battery based on a degradation condition of the battery and an internal state of the battery in the present charging operation, and determines a charging current of a subsequent charging operation based on the variation in the charging current in the present charging operation and the charging current in the present charging operation.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: October 6, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeryong Jung, Young Hun Sung, Duk Jin Oh, Ju Wan Lim
  • Patent number: 10769236
    Abstract: Battery models using robust fail-safe iteration free approach for solving Differential Algebraic Equations, and associated systems and methods are disclosed. In one embodiment, a method includes generating a model of the rechargeable battery; determining one or more initial conditions for one or more algebraic variables of the model using a solver; holding differential variables of the model static by a switch function while determining the one or more initial conditions; applying the initial conditions to the model by the switch function; and determining one or more parameters for the rechargeable battery by solving the algebraic and differential equations.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: September 8, 2020
    Assignees: University of Washington, Washington University
    Inventors: Dayaram Sonawane, Manan Pathak, Venkat Subramanian, Matthew Lawder
  • Patent number: 10770911
    Abstract: Calibrating a battery capacity gage employs a controlled discharge of a backup battery unit. A method of updating a capacity gage includes charging a backup battery unit to a predetermined high charge level. A first amount of energy is discharged from the backup battery unit at a first controlled discharge rate so as to discharge the backup battery unit from the predetermined high charge level to a first low charge level. The backup battery unit is charged back to the predetermined high charge level. A power system controller estimates, based on the first amount of energy and the first controlled discharge rate, a second amount of energy that can be discharged from the backup battery unit at a second controlled discharge rate greater than the first controlled discharge rate. The capacity gage is updated based on the second amount of energy estimated by the power system controller.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: September 8, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Darin Lee Frink, Ligong Wang
  • Patent number: 10756553
    Abstract: A programmable battery protection system. Implementations may include a battery protection integrated circuit (IC) with an array of fuses, a plurality of latches coupled with the array of fuses, a plurality of MOSFETs coupled with the plurality of latches, and a plurality of resistors coupled in series and in parallel with each one of the plurality of MOSFETs. The IC may also include a comparator coupled with the plurality of resistors and with a battery control circuit. Whether any one of the array of fuses is open or closed (remains closed) may be set by a fuse trimming signal from the battery control circuit. A voltage supplied to the comparator by the plurality of resistors during operation may be one of a discharge overcurrent threshold voltage, a charge overcurrent threshold voltage, or a short current threshold voltage.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 25, 2020
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Hiroshi Saito, Keiji Amemiya, Mutsuki Niki, Yasuaki Hayashi