Detection Of Current Or Voltage Amplitude Patents (Class 320/152)
  • Patent number: 11951866
    Abstract: A method for determining an operating temperature of a battery cell in which (i) a value of a measure variable for determining an external temperature of the battery cell is detected, (ii) an internal temperature of the battery cell is determined by detecting an electrical impedance of the battery cell, and (iii) a value of the operating temperature of the battery cell is determined from the external and/or the internal temperature. The internal temperature of the battery cell in a first operating state of the battery cell is determined more frequently when the value of the determined external temperature, the internal temperature and/or the operating temperature lies within a predefined first safe range, and is determined less frequently when the value of the determined external temperature, the internal temperature and/or the operating temperature lies outside the predefined first safe range.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 9, 2024
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Jennifer Mueller, Jan Philipp Schmidt, Hermann Zehentner
  • Patent number: 11936180
    Abstract: A circuit for controlling an interface between an integrated circuit of an electronic device and an external device includes each of an interface control switch and an overvoltage protection switch. The interface control switch includes a controller for controlling a mode of the interface between a data communication mode that connects the external device to the integrated circuit of the electronic device via one or more communication lines of the electronic device, and a power transmission mode that connects a power source of the external device to a battery of the electronic device. The controller includes a reset line for resetting the interface control switch. The overvoltage protection switch is connected between the one or more communication ports and the reset line, and is configured to activate the reset line of the controller in response to an overvoltage condition at the one or more communication lines of the electronic device.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: March 19, 2024
    Assignee: Google LLC
    Inventor: Yao Ding
  • Patent number: 11909244
    Abstract: Disclosed are a battery charging method, a controller, a battery management system, a battery, and an electric device, aimed to suppress lithium plating of the battery. The battery charging method includes: obtaining an electrical parameter of a battery; determining whether the electrical parameter of the battery reaches a preset threshold, where a value range of the preset threshold meets the following condition: a battery state of charge (SOC) corresponding to the preset threshold is 70% to 80%; suspending, when the electrical parameter of the battery reaches the preset threshold, charging of the battery and discharging the battery for a duration of t; and continuing to charge the battery when the discharge is completed.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: February 20, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventor: Haili Li
  • Patent number: 11909007
    Abstract: Devices, systems, methods, computer-implemented methods, and/or computer program products to facilitate an intelligent battery cell with integrated monitoring and switches are provided. According to an embodiment, a device can comprise active battery cell material. The device can further comprise an internal circuit coupled to the active battery cell material and comprising: one or more switches coupled to battery cell poles of the device; and a processor that operates the one or more switches to provide a defined value of electric potential at the battery cell poles.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: February 20, 2024
    Assignee: VOLVO CAR CORPORATION
    Inventors: Jonas Forssell, Robert Eriksson
  • Patent number: 11899577
    Abstract: Methods, systems, and devices for selective garbage collection are described. A host system may determine that a battery level is below a threshold or determine whether a power parameter of a memory system that includes a memory device satisfies a criterion. The host system may set a value of a flag. The memory system may perform an access operation and identify the value of the flag. The memory system may determine whether performing a garbage collection procedure is permitted based on identifying the value of the flag.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: February 13, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Antonio Mauro, Luigi Costanzo, Nicola Colella
  • Patent number: 11901747
    Abstract: An electronic cigarette (“e-Cig”) may include improved charging of the battery. A more accurate battery voltage can be detected for the connectors with the chargers that can provide for an optimized evaluation of the charging process. Various battery properties may be detected based on resistance measurements from within the e-Cig. The battery charging can be controlled and optimized based on a slow control of the current and voltage.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: February 13, 2024
    Assignee: Altria Client Services LLC
    Inventor: Nehemia Amir
  • Patent number: 11848427
    Abstract: A Non-Linear Voltammetry (NLV)-based method for charging batteries. It also relates to a fast charging system implementing this method. Adaptive charging, Non-Linear Voltage changing, and Relaxation are the key cornerstones of this method. Adaptive charging allows the system to balance the charging based on the user's time requirements, required charge capacity and the SOC and SOH of the battery. Non-linearly changing the voltage coupled with a suitable relaxation pattern allows this method to gain the maximum charge capacity without straining the battery.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 19, 2023
    Assignee: Yazami IP PTE. LTD.
    Inventors: Rachid Yazami, Thannehene Gedara Thusitha Asela Bandara
  • Patent number: 11823025
    Abstract: Disclosed in the present application are a battery charging method and apparatus, and a device and a medium. The method includes; collecting, at a preset time interval, battery charging state data of a rechargeable battery within each of the preset time intervals in real time; when the battery charging state data within any one of the preset time intervals is collected, using the battery charging state data within the preset time interval as a training data set, inputting the training data set to an initial neural network model for training, and during the process of training, updating a preset network parameter on the basis of the difference value between a model output value corresponding to each piece of battery charging state data and a preset threshold until difference value between model output value corresponding to present battery charging state data and the preset threshold meets a preset error condition.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: November 21, 2023
    Assignee: INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO., LTD.
    Inventors: Qingsong Qin, Lei Liang
  • Patent number: 11817732
    Abstract: A charging controller includes a current measurement unit configured to measure a charging current of a rechargeable battery, a detection unit configured to detect switching from a constant current charge to a constant voltage charge based on the charging current measured by the current measurement unit, during charge of the rechargeable battery, and an update unit configured to update a full charge capacity of the rechargeable battery based on a charged capacity after the point in time, detected by the detection unit, of switching from the constant current charge to the constant voltage charge.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: November 14, 2023
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Hiromitsu Yamaguchi, Tadashi Kosuga, Hideki Otsuki, Koichi Fukuoka
  • Patent number: 11811024
    Abstract: Provided are a battery management system (BMS) and a battery system capable of accurately measuring a voltage without using a precise resistance element and reducing an error even when operating in a wide temperature range. Since a correction amount for the resistor included in the voltage measurement module is generated using a diagnostic power source configured independently of the battery system, and a voltage of the circuit included in the battery system is measured by applying the generated correction amount, the voltage may be precisely measured without using a high-precision resistance element. Since a changeover switch operates periodically to generate and apply an updated correction amount according to a changing environment, the voltage may be precisely measured even if it is applied to a system in which the environment continuously changes, such as a driving electric vehicle.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: November 7, 2023
    Assignee: SK On Co., Ltd.
    Inventors: Jung Hwan Park, Woo Jung Kim, Yong Sug Choi
  • Patent number: 11768510
    Abstract: A power supply semiconductor IC includes: an output transistor connected between a voltage-input terminal and a voltage-output terminal; a control circuit that controls the output transistor based on a feedback voltage of an output voltage; a current-limit circuit that limits an output current of the output transistor such that the output current is not equal to or greater than a current limit; a first transistor constituting a current-mirror circuit with the output transistor; a short-circuit-fault detection circuit that detects a short circuit of the voltage-output terminal based on a voltage across a resistor connected in series to the first transistor; and a first output terminal that outputs a detection result of the short-circuit-fault detection circuit. The current limit is within a detection range of the short-circuit-fault detection circuit. The short-circuit-fault detection circuit detects a short circuit of the voltage-output terminal even while the current limit circuit limits the output current.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: September 26, 2023
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Kohei Sakurai, Shinichiro Maki
  • Patent number: 11764415
    Abstract: A method for charging a battery includes: determining a first charging section, in which a current charging rate of the battery is located, from among a plurality of charging sections predetermined based on a functional relation between a state of charge of the battery and an open circuit voltage of an anode of the battery; and charging the battery for the first charging section with a first charging rate corresponding to the first charging section.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: September 19, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Seok Hong, Jeong Kuk Shon, Young-Gyoon Ryu
  • Patent number: 11754375
    Abstract: An apparatus for an armor system includes a housing case, an interior ballistic panel, a frame, an electrical energy storage unit, a flexible backplane system, and a control unit. The housing case includes a top shell and a bottom shell, where the top shell is removably secured to the bottom shell, forming a cavity. The interior ballistic panel is removably arranged within the cavity between the top shell and the bottom shell. The frame is arranged within the cavity between the top shell and the interior ballistic panel, the frame including a compartment. The electrical energy storage unit is arranged within the compartment of the frame, and the control unit is communicatively connected to the electrical energy storage unit to manage operation of the electrical energy storage unit. The flexible backplane system includes electrical connectors and electrical traces on a flexible substrate connecting the electrical energy storage unit to the control unit.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: September 12, 2023
    Assignee: Cornerstone Research Group, Inc.
    Inventors: Frank M. Zalar, Matthew S. Benefiel, Ethan R. Steinmetz, Joshua E. Nieman, Jacob A. Monat, Brian E. Henslee
  • Patent number: 11728683
    Abstract: Systems, methods and apparatus for wireless charging are disclosed. A charging device has a plurality of charging cells provided on a charging surface, a charging circuit and a controller. The controller may be configured to cause the charging circuit to provide a charging current to a resonant circuit when a receiving device is placed on the charging surface, provide a measurement slot by causing the charging circuit to decrease or terminate the charging current for a period of time and determine whether the receiving device has been removed from the charging surface based on measurement of a characteristic of the resonant circuit during the measurement slot. The characteristic of the resonant circuit may be representative of electromagnetic coupling between a transmitting coil in the resonant circuit and a receiving coil in the receiving device.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: August 15, 2023
    Assignee: AIRA, INC.
    Inventors: Eric Heindel Goodchild, John Winters, James Scott
  • Patent number: 11721999
    Abstract: A charging control device includes: a determination section configured to make a determination as to whether an auxiliary device battery that supplies electric power to auxiliary devices of a vehicle is within a predetermined first temperature range; and a control section configured to, in a case in which the auxiliary device battery is within the first temperature range, cause a charging section to charge the auxiliary device battery.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: August 8, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru Ono, Akira Umemoto, Takuya Itoh, Tomoyuki Kato, Makoto Fujii
  • Patent number: 11707986
    Abstract: A vehicle includes: a battery pack including a secondary battery, a battery sensor configured to detect a state of the secondary battery, and a first control device; and a second control device provided separately from the battery pack, wherein: the first control device is configured to set a power upper limit value indicating an upper limit value of a battery power of the secondary battery by using a detection value of the battery sensor; and the second control device is configured to set a guard value of the upper limit value of the battery power by using a temperature of the secondary battery and set the power upper limit value such that the power upper limit value does not exceed the guard value.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: July 25, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiaki Kikuchi, Junichi Matsumoto, Akio Uotani
  • Patent number: 11701975
    Abstract: There is provided an information processing apparatus including a travelable information display unit that displays before a discharge, regarding motor-driven movable bodies of a discharge source and a discharge destination driven by using electric power of batteries, information about places to which the motor-driven movable body of the discharge source can move using electric power of the battery left after the discharge by assuming, when information about a discharge amount discharged from the battery of the motor-driven movable body of the discharge source toward the motor-driven movable body of the discharge destination that receives power supply is input, a case in which the discharge amount is discharged from the battery.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: July 18, 2023
    Assignee: SONY GROUP CORPORATION
    Inventor: Yoshihito Ishibashi
  • Patent number: 11699916
    Abstract: A method for charging a battery includes coupling an electrical device in a circuit between the battery and an electrical power source. The electrical device having on and off states that are mechanically different. The method includes charging the battery by setting the electrical device to the on state, measuring current flowing through contacts of the electrical device while in the on state, determining current as a function of time flowing through the contacts of the electrical device, using the current as a function of time as a variable in a thermal model based on heating of the contacts and cooling of the contacts, determining by the thermal model a predicted temperature of the contacts based on the current as a function of time and the heating and cooling of the contacts and controlling the on and off state of the electrical device based on the predicted temperature.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: July 11, 2023
    Assignee: BAE Systems Controls Inc.
    Inventors: Nicholas A. Lemberg, Liam Collins
  • Patent number: 11695290
    Abstract: Embodiments of this application disclose a power supply method, a control method, a power source, and a detection apparatus, to improve power supply efficiency of a power supply system. The method in the embodiments of this application includes: converting a voltage input into a power source into a first voltage, and supplying power to an energy-consuming component based on the first voltage; obtaining status information obtained after the energy-consuming component is powered on, where the status information includes identification information of the energy-consuming component or current working status information of the energy-consuming component; determining a second voltage based on the status information; and converting the voltage input into the power source into the second voltage, and supplying power to the energy-consuming component based on the second voltage.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: July 4, 2023
    Assignee: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Jianhua Peng, Xingjie Wang, Xuejuan Kong
  • Patent number: 11671181
    Abstract: A battery system includes a plurality of battery modules, each of the battery modules including a plurality of stacked battery cells and a battery module monitor (BMM) configured to monitor the respective battery cells; a battery system monitor (BSM) configured to communicate with and control the BMMs; a housing enclosing the battery modules and the BSM, the battery modules being arranged in the housing such that a swelling compensation channel is formed between the battery module and the housing; and an optical communication system (OCS) configured to connect the BSM with the BMMs via optical signals propagating along the swelling compensation channel.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: June 6, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Maximilian Hofer, Roland Klobasa, Gernot Kraberger
  • Patent number: 11663148
    Abstract: Methods for operating a memory device can include monitoring communications from a host device for a notification that a battery of the host device has entered a charging state and performing a background operation of the memory device responsive to receiving this notification. The notification can be an added functionality incorporated into a standardized interface.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: May 30, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kulachet Tanpairoj, Jianmin Huang
  • Patent number: 11630160
    Abstract: The battery residual value display device includes: a battery information receiving module; an attenuation function determining module; a second residual value determining module; a graph output module configured to output a graph of which one axis indicates residual values of a battery and another axis indicates information on an elapsed time from a time of manufacture of the battery; and a display unit. The graph output module is configured to output: in the graph, a display indicating a first residual value; a display indicating boundaries between a plurality of residual value ranks obtained by dividing the residual values in accordance with a level of a second residual value; and a display indicating boundaries between a plurality of groups, indicating types of applications in which the battery can be used, obtained by dividing the plurality of residual value ranks in accordance with the level of the second residual value.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: April 18, 2023
    Assignee: TOYO SYSTEM CO., LTD.
    Inventors: Ichiro Munakata, Toshiaki Kanari, Masahiro Shoji, Katsunari Matsumoto, Ryo Ishigami, Takanori Anrui, Misaki Shimoyamada, Hideki Shoji
  • Patent number: 11621444
    Abstract: A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and/or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and/or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: April 4, 2023
    Inventor: Christopher B. Austin
  • Patent number: 11598810
    Abstract: System and method for battery runtime forecasting, including identifying a power usage of a IHS; identifying a charge profile of a battery of the IHS, the charge profile including charging levels each associated with a respective time period; determining a state of charge of the battery based on a current time; identifying power delivery capabilities of a power source providing power to the battery; generating a predicted relative state of charge (RSOC) profile of the battery based on i) the power usage of the IHS, ii) an entirety of the charge profile of the battery, iii) the state of charge of the battery, and iv) power delivery capabilities of the power source; and identifying a runtime estimate of the battery.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: March 7, 2023
    Assignee: Dell Products L.P.
    Inventors: Tyler Ryan Cox, Richard Christopher Thompson, Thanh Thien Tran
  • Patent number: 11598816
    Abstract: A method for online assessing a state of health (SOH) of an electrochemical cell, comprises a step for estimating the state of health (SOH) of the electrochemical cell from thermodynamics data related to the cell the thermodynamics data including entropy and enthalpy variations ?S, ?H within the cell. A system for fast-charging a rechargeable battery with terminals connected to internal electrochemical cells, comprises a power supply connected to the rechargeable battery and arranged for applying a time-varying charging voltage to the battery terminals, a charging-control processor for controlling the power supply, and a system for online assessing a state of health (SOH) of the battery, the SOH assessment system comprising means for estimating the state of health (SOH) of the electrochemical cell from thermodynamics data related to the battery.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: March 7, 2023
    Assignee: Yazami IP PTE. LTD.
    Inventors: Rachid Yazami, Sohaib El Outmani
  • Patent number: 11588335
    Abstract: Power systems and methods of using the same to deliver power. A power system referenced herein can include a housing capable of attaching to a workstation, one or more cradles or mounting fixtures to receive at least one energy storage device, electronic circuitry to communicate status of the at least one energy storage device, state of charge of the at least one energy storage device, and/or overall health of the at least one energy storage device, and one or more electrical connectors to allow the at least one energy storage device to charge and/or discharge and communicate with the electronic circuitry, with said housing having an internal power supply and charge circuitry, said power supply capable of receiving input power from an external AC or DC power source; wherein the power system is configured to deliver power to the workstation.
    Type: Grant
    Filed: November 26, 2021
    Date of Patent: February 21, 2023
    Assignee: Green Cubes Technology, LLC
    Inventors: Mohammed Alobaidi, Anthony Cooper, Patrick Ney, Joseph Richards
  • Patent number: 11563238
    Abstract: A highly safe power storage system is provided. If n (n is an integer over or equal to three) secondary batteries are used in a vehicle such as an electric vehicle, a circuit configuration is used with which the condition of each secondary battery is monitored using an anomaly detection unit; and if an anomaly such as a micro-short circuit is detected, only the detected anomalous secondary battery is electrically separated from the charging system or the discharging system. At least one microcomputer monitors anomalies in n secondary batteries consecutively, selects the anomalous secondary battery or the detected secondary battery which causes an anomaly, and gives an instruction to bypass the secondary battery with each switch.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 24, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Ryota Tajima, Toshiyuki Isa, Akihiro Chida
  • Patent number: 11552481
    Abstract: An information processing terminal 100, which is used for after-sales service of an energy storage facility 10 that includes an energy storage unit U including a plurality of energy storage modules M, includes: a display unit 107; and a control unit 101, in which the control unit 101 acquires, from the energy storage facility, a temperature of each of the energy storage modules M after start of operation, the temperature being measured by a temperature sensor 37 provided in each of the energy storage modules M, and in which the control unit 101 displays a temperature distribution of the energy storage unit U on the display unit 107 by a color distribution of display colors of a plurality of blocks B depicting an arrangement of the plurality of energy storage modules M in the energy storage unit U.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: January 10, 2023
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventor: Toshihiro Yabu
  • Patent number: 11549989
    Abstract: Disclosed is a charging method and apparatus which is optimized based on an electrochemical model, the charging method includes estimating an internal state of a battery, determining a charging limitation condition corresponding to a plurality of charging areas based on the internal state, and charging the battery based on the charging limitation condition.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: January 10, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeryong Jung, Duk Jin Oh, Ju Wan Lim
  • Patent number: 11552341
    Abstract: An inspection method for a secondary battery includes: constituting a circuit by connecting a charged secondary battery to a power supply; measuring a circuit current flowing through the circuit in association with self-discharge of the secondary battery; and determining the quality of the secondary battery based on a measured value of the circuit current converged in the measuring. During execution of the measuring, a battery temperature control is performed to control the temperature of the secondary battery.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: January 10, 2023
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventor: Ruri Tanaka
  • Patent number: 11522380
    Abstract: A power storage apparatus includes a storage battery chargeable and dischargeable, a voltage stepping-up/down circuit that performs a voltage stepping-up operation of stepping up by PWM control a voltage supplied from the storage battery and outputting a stepped-up voltage to a high-voltage DC bus line, and a voltage stepping-down operation of stepping down by PWM control a voltage supplied from the high-voltage DC bus line and supplying a stepped-down voltage to the storage battery. Moreover, a detection device is provided that outputs a detection signal indicating a full-charged state of the storage battery, and a controller keeps a high-side switch in the voltage stepping-up/down circuit in an off state in response to input of the detection signal.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 6, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Shuichi Tagawa
  • Patent number: 11513164
    Abstract: A method and system for estimating a battery pack balance state of a new energy vehicle are provided. The method includes: acquiring an actual cell voltage difference measured for a battery pack of a new energy vehicle, and acquiring one or more operation condition parameters for an operation condition under which the actual cell voltage difference is measured, wherein the actual cell voltage difference is the difference between the maximum and minimum battery cell voltages within the battery pack; determining an expected cell voltage difference according to a model based on the one or more operation condition parameters; determining a compensated cell voltage difference according to the actual cell voltage difference and the expected cell voltage difference; and estimating a battery pack balance state of the new energy vehicle according to the compensated cell voltage difference.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: November 29, 2022
    Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.
    Inventors: Yizhen Zhang, Jin Shang, Xiong Zhang, Yonggang Xu
  • Patent number: 11515588
    Abstract: Disclosed are a heating method for a rechargeable battery, a control unit and a heating circuit. The heating method comprises: determining a frequency value of a pulse current for heating the rechargeable battery in response to a heating command of the rechargeable battery; determining a current value of the pulse current according to the frequency value and an acquired state parameter of the rechargeable battery; judging whether the current value satisfies a preset heating demand; if the current value satisfies the heating demand, generating the pulse current under control according to the frequency value; if the current value does not satisfy the heating demand, re-determining the frequency value and the current value of the pulse current. The embodiments of the present disclosure further provide a control unit and a heating circuit.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: November 29, 2022
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xinxin Du, Zhimin Dan, Fuping Luo, Shengwei Wang, Tiancong Wang, Xiyang Zuo
  • Patent number: 11509161
    Abstract: Charging an accumulator having an energy storage cell, a data interface and a wake-up circuit. A charging apparatus contains a data interface, a controller, a timer and a switch apparatus. The data interfaces connected to one another via a communication line for differential communication between the accumulator and charging apparatus. Setting the timer to a predetermined period of time; setting the control electronics of the accumulator to a deactivation mode; sending at least one signal from the charging apparatus to the accumulator via the communication line after the predetermined period of time has elapsed; activating the wake-up circuit for activating control electronics by detecting a voltage value from the communication line, the voltage value is consistent with either the dominant or recessive state of the communication line; setting the control electronics to an activation mode; and requesting or releasing a charging current from the charging apparatus using the accumulator.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: November 22, 2022
    Assignee: Hilti Aktiengesellschaft
    Inventors: Klaus Hauser, Stefan Mayer, David Koscheck
  • Patent number: 11495986
    Abstract: An electronic device is provided. The electronic device includes a housing, a power interface exposed through at least a portion of the housing to be connected to an external power source in a wired manner or disposed inside the housing to be connected to the external power source in a wireless manner, at least one battery disposed inside the housing and electrically connected to the power interface, a processor disposed inside the housing and operatively connected to the power interface, and a memory disposed inside the housing and operatively connected to the processor.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: November 8, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byungwook Kim, Hyungjun Kwon, Jongkyu Lee, Jaemu Ha
  • Patent number: 11482868
    Abstract: A secondary battery protection circuit for a secondary battery includes: a reference voltage circuit configured to generate a reference voltage by using a depletion-type transistor and a transistor unit of enhancement type connected in series with the depletion-type transistor; a voltage divider configured to output a detection voltage obtained by dividing a power source voltage of the secondary battery; a detection circuit configured to detect an abnormal state of the secondary battery based on the reference voltage and the detection voltage; a first adjustment circuit configured to adjust a size ratio of the depletion-type transistor to the transistor unit based on threshold voltages of the depletion-type transistor and the transistor unit; and a second adjustment circuit configured to adjust the detection voltage based on the reference voltage after adjusting the size ratio.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: October 25, 2022
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Daichi Yamashita, Norihito Kawaguchi, Yoshihiro Satake, Nobuhito Tanaka, Koji Koshimizu
  • Patent number: 11437837
    Abstract: The present invention relates to a voltage recognition system of a starting battery and a method of recognizing an off state of an external system using the same, and more particularly, to a driving system of a starting battery and a method of recognizing an off state of an external system using the same, which make it possible to start an engine next time by recognizing the off state of the external system in an overvoltage state according to whether there occurs a difference between values of voltages measured by two ADCs having different positions of ground GND without requiring a current sensor.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: September 6, 2022
    Assignee: LG Energy Solution, Ltd.
    Inventors: Sung Ju Hong, Jeong Wook Kim, Jung Hyun Nam
  • Patent number: 11431199
    Abstract: Deterioration of a storage battery included in an electronic device is reduced. Power consumption of an electronic device is reduced. A power feeding device having excellent performance is provided. The power feeding device includes a power feeding coil, a control circuit, and a neural network and has a function of charging a storage battery with a wireless signal supplied by the power feeding coil. The control circuit has a function of estimating a remaining capacity value of the storage battery, the control circuit has a function of supplying the estimated remaining capacity value to the neural network, the neural network outputs a value corresponding to the supplied remaining capacity value to the control circuit, the control circuit determines a charge condition for the storage battery on the basis of the value output by the neural network, and the power feeding device has a function of charging the storage batten under the determined charge condition.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: August 30, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Koji Kusunoki, Toshiyuki Isa, Akihiro Chida, Kouhei Toyotaka, Ryota Tajima
  • Patent number: 11417916
    Abstract: A system and method for intelligent battery charging management to improve battery life and charging efficiency of high capacity batteries that may not be deeply discharged on a regular basis may learn driving habits automatically and/or with user input and select an ending state-of-charge (SOC) to limit battery charging to less than maximum capacity based on current and/or anticipated ambient temperature and battery health of life (HOL). An expected vehicle travel distance before the next charge may be learned or determined based on vehicle or user inputs. An ending SOC based on battery temperature, a delta SOC to meet propulsive energy for the expected travel distance, cycling effect (depth of discharge) on battery HOL for a given delta SOC, and/or battery working efficiency may be used to control charging of the vehicle battery.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: August 16, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaohong Nina Duan, Yanan Zhao, Robert Taenaka
  • Patent number: 11411426
    Abstract: A charging control device includes: a determination section configured to make a determination as to whether an auxiliary device battery that supplies electric power to auxiliary devices of a vehicle is within a predetermined first temperature range; and a control section configured to, in a case in which the auxiliary device battery is within the first temperature range, cause a charging section to charge the auxiliary device battery.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: August 9, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru Ono, Akira Umemoto, Takuya Itoh, Tomoyuki Kato, Makoto Fujii
  • Patent number: 11404899
    Abstract: A voltage measurer measures a voltage of a battery cell. A controller controls charging-discharging of the battery cell. The controller performs control to apply a reverse current for canceling a polarization voltage of the battery cell through the battery cell after the completion of charging-discharging of the battery cell. For example, after the charging-discharging of the battery cell completes, the controller sets a current command value, in a power converter, that instructs flow of a reverse current of a preset value for a preset time.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: August 2, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinya Nishikawa, Tohru Watanabe, Takashi Iida
  • Patent number: 11305659
    Abstract: A cooling method can be used with an electric vehicle that comprises a vehicle charging connection unit connected to an external cable connected to a charger located outside the electric vehicle, a battery configured to be charged through the vehicle charging connection unit, and a pump configured to circulate cooling water to cool the vehicle charging connection unit. The cooling method includes determining whether an amount of cooling water is insufficient and, upon determining that the amount of cooling water is insufficient, restricting a charging rate of charging power supplied through the vehicle charging connection unit.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: April 19, 2022
    Assignees: Hyundai Motor Company, Kia Motors Cornoration
    Inventors: Kyung Su Kim, Hyeon Jun Kim, Yong Hyun Kim
  • Patent number: 11211809
    Abstract: A method for heating an energy storage device having a core with an electrolyte, the method including: providing the energy storage device having inputs and characteristics of a capacitance across the electrolyte and the core and internal surface capacitance between the inputs which can store electric field energy between internal electrodes of the energy storage device that are coupled to the inputs; switching between a positive input voltage and a negative input voltage provided to one of the inputs at a frequency sufficient to effectively short the internal surface capacitance of the energy storage device to generate heat and raise a temperature of the electrolyte; and discontinuing the switching when the temperature of the electrolyte is above a predetermined temperature that is considered sufficient to increase a charging efficiency of the energy storage device.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: December 28, 2021
    Assignee: OMNITEK PARTNERS LLC
    Inventors: Jahangir S Rastegar, Philip C Kwok
  • Patent number: 11201489
    Abstract: A Li-ion battery management system comprises a Li-ion cell, one or more sensors configured to sense one or more operating conditions of the Li-ion cell, a controller having non-transitory memory for storing machine instructions that are to be executed by the controller and operatively connected to the Li-ion cell, the machine instructions when executed by the controller implement the following functions: receive the one or more operating conditions and a trained machine learning (ML) model, and output an indicator value along a state of charge (SOC) trajectory in response to the one or more operating conditions and the trained ML model to control a fast charge state of the Li-ion cell from a current source.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: December 14, 2021
    Assignee: ROBERT BOSCH GMBH
    Inventors: Maksim Subbotin, Reinhardt Klein, Yongfang Cheng, Nikhil Ravi
  • Patent number: 11189863
    Abstract: A power storage apparatus including a battery and a control circuit that controls the charging or discharging of the battery, wherein during a polarization elimination time period extending from the charging/discharging end time of the battery to a polarization-eliminated time at which polarization of the battery can be judged to have been eliminated, the control circuit obtains, as an amount of change, the difference between a voltage measured at a first time set according to the temperature of the battery and a voltage measured at a second time following the first time and set according to the temperature of the battery, and sums the product of the amount of change and an estimation coefficient and the voltage measured at the first or second time so as to estimate an open-circuit voltage of the battery to be provided after elimination of the polarization of the battery.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: November 30, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kenji Nishigaki, Junichi Hatano, Toshio Otagiri, Hiroto Sato, Shinichi Aizawa, Ryusuke Hase
  • Patent number: 11075516
    Abstract: A relay temperature measuring device is provided. The device includes a sensor that measures an output of a battery and generates output measurement information and one or more relays that are disposed on a conductive line between the battery and a load. Additionally, a controller compares a relay temperature calculated using both-end measurement power information generated by measuring both ends of a conductor in a vehicle and the output measurement information with a preset temperature reference value, and connects or disconnects the relays based on a comparison result.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 27, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong-Jin Nam, Sung-Hoon Choi, Yu-Hyun Sung, Jeong-Min Shin
  • Patent number: 10959310
    Abstract: A linear light-emitting diode (LED) lamp comprising a normally operated portion and an emergency-operated portion is used to replace a luminaire operated only in a normal mode with alternate-current (AC) mains. The normally operated portion comprises LED arrays and a power supply whereas the emergency-operated portion comprises a rechargeable battery, a charging circuit, an LED driving circuit, a self-diagnostic circuit, and a charging detection and control circuit. The linear LED lamp can auto-switch from the normal mode to an emergency mode or the other way around according to availability of the AC mains and whether a rechargeable battery test is initiated. The self-diagnostic circuit comprises multiple timers and is configured to provide multiple sequences and to auto-evaluate battery performance according to the multiple sequences. During an auto-evaluation period, a terminal voltage on the rechargeable battery is examined with test results displayed in a status indicator.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: March 23, 2021
    Assignee: Aleddra Inc.
    Inventor: Chungho Hsia
  • Patent number: 10892639
    Abstract: A connection in a power aggregation system for distributed electric resources is located by establishing, by way of a computer network, a communication between a mobile electric resource and a network-connected device, the mobile electric resource including one or more processors including a processor to control power flow, obtaining, with the one or more processors, a unique identifier associated with the network-connected device, transmitting, with the one or more processors, information regarding the mobile electric resource to a remote server, determining, with the one or more processors or the remote server, a location of the mobile electric resource from the unique identifier, determining at least one power connection location from the determined location, and charging the mobile electric resource with the determined at least one power connection location.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: January 12, 2021
    Assignee: V2Green, Inc.
    Inventors: Seth W. Bridges, Seth B. Pollack, David L. Kaplan
  • Patent number: 10791038
    Abstract: An online cloud-based service processing system, an online evaluation method and a computer program product thereof are provided. The online evaluation method includes: running at least one application service unit of the processing system; executing at least one evaluation registration procedure for at least one application service evaluation unit of the processing system in response to at least one registration request; running the at least one application service evaluation unit; dispatching at least one online service request respectively to the at least one application service unit and the at least one application service evaluation unit, and generating at least one output result corresponding to the at least one online service request; and calculating at least one ranking for each of the at least one application service evaluation unit based on output result(s) generated by the at least one application service evaluation unit among the at least one output result.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 29, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Yang Guo, Chih-Hsuan Lu, Chih-Pin Su, Chin-Sheng Yeh, Hao-Yuan Chen, Shin-Yi Wu
  • Patent number: 10779159
    Abstract: A method is provided for diagnosing and assessing potential faults with a mobile device. Based on device status data acquired from the mobile device and aggregated device status data from other mobile devices, potential faults with the mobile device may be diagnosed, and the impact of such potential faults may be evaluated. A corresponding system, apparatus, and computer program product are also provided.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: September 15, 2020
    Assignee: ASSURANT, INC.
    Inventors: Cameron E. Hurst, Cassandra G. Conrad