With Battery Or Cell Condition Monitoring (e.g., For Protection From Overcharging, Heating, Etc.) Patents (Class 320/134)
  • Patent number: 11029363
    Abstract: Provided is a device including an acquisition unit configured to obtain a time taken for a voltage level of a battery in a charge mode to change for each of a plurality of voltage sections, and a prediction unit configured to predict a state of health (SOH) of the battery based on ratio information determined by comparing the time obtained for each of the plurality of voltage sections with a reference time for each of the plurality of voltage sections. When the time taken for some voltage sections of the plurality of voltage sections is obtained by the acquisition unit, the prediction unit corrects the predicted SOH of the battery based on the time taken for the voltage level of the battery in a discharge mode to change.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 8, 2021
    Assignee: OCI COMPANY LTD.
    Inventors: MyungSup Um, HeeChang Ye
  • Patent number: 11031934
    Abstract: The present disclosure relates to a connection circuit including a first circuit and a second circuit. The first circuit includes a first impedance unit. The first impedance unit is electrically connected to a first detecting terminal of an electronic device for receiving a first voltage. The second circuit includes a second impedance unit. The second impedance unit is electrically connected to a second detecting terminal of the electronic device. The second impedance unit includes a transistor switch. A control terminal of the transistor switch is electrically connected to the first circuit such that the transistor switch is turned on according to the first voltage, and the second circuit receives a second voltage transmitted from the second detecting terminal.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: June 8, 2021
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Ya-Hsuan Sung
  • Patent number: 11025071
    Abstract: A power supply unit for an aerosol inhaler includes: a power supply that is able to discharge power to a load for generating an aerosol from an aerosol generation source; and a control unit that is configured to control at least one of charging and discharging of the power supply such that the power supply does not become one or both of a fully charged state and a discharging termination state.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: June 1, 2021
    Assignee: JAPAN TOBACCO INC.
    Inventors: Manabu Yamada, Takeshi Akao
  • Patent number: 11025084
    Abstract: A first electronic device, electronically coupled to a second device for supplying a charge to the second electronic device, tracks the voltage requirements of the second device and dynamically adjusts its output voltage upwards or downwards to match such requirements. The second electronic device may provide feedback to the first electronic device through a feedback loop. The feedback may include an indication of the voltage requirements and/or instructions for adjusting the voltage output of the first electronic device. The second device may be, for example, a wearable audio device, while the first device is a case for the wearable audio device.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 1, 2021
    Assignee: Google LLC
    Inventors: Yao Ding, Trevor Hermosillo, Maksim Shmukler, Chi Kin Benjamin Leung
  • Patent number: 11025073
    Abstract: A module maintenance system includes a battery module comprising at least a first battery cell and a second battery cell, and a charging device comprising a bulk output and an equalization output. The battery module has a series configuration and a parallel configuration. In the parallel configuration, the charging device outputs a first voltage to the equalization output to equalize charge levels of the first and second battery cells. In the series configuration, the charging device outputs a second voltage to the bulk output to modify charge levels of the first and second battery cells, wherein the second voltage is greater than the first voltage.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: June 1, 2021
    Assignee: Artisan Vehicle Systems, Inc.
    Inventors: Brian R. Huff, Mike Kasaba, Russell Davis
  • Patent number: 11007896
    Abstract: A storage apparatus stores output property data including groups of residual capacities of a secondary battery and output densities corresponding to the residual capacities. In the output property data, both a difference between a residual capacity of a group that includes an extreme value in the output densities and a residual capacity of a group that includes an output density that immediately precedes the extreme value, and a difference between the residual capacity of the group that includes the extreme value in the output densities and a residual capacity of a group that includes an output density that immediately follows the extreme value are less than a difference between output densities of other groups adjacent to each other.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: May 18, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Yoshida, Hideo Yanagita
  • Patent number: 11005126
    Abstract: A secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The electrolytic solution includes at least one of a first heterocyclic compound and a second heterocyclic compound.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: May 11, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takumi Hiasa, Toru Odani, Kazumasa Takeshi, Tadahiko Kubota, Nadejda Krasteva, Silvia Rosselli, Gabriele Nelles, David Danner, Vitor Deichmann, Dennis Chercka, William Ford
  • Patent number: 10998737
    Abstract: A charging path switching circuit includes a first port, a second port, a path switch unit, and a conversion unit. The first port is connected to an external electronic device to obtain a first electrical signal. The second port is connected to an external power source to obtain a second electrical signal. The conversion unit is connected the path switch unit and converts the first electrical signal or the second electrical signal to a predetermined voltage. The path switch unit is connected to the first port and the second port. The path switch unit selects to connect to the first port or the second port, to obtain the first electrical signal or the second electrical signal according to the connection of the first and the second port. The path switch unit preferentially selects to obtain the second electrical signal from the second port.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: May 4, 2021
    Assignee: AMBIT MICROSYSTEMS (SHANGHAI) LTD.
    Inventor: Yu-Hu Yan
  • Patent number: 10998734
    Abstract: A power adapter and a terminal are provided. The power adapter includes a power conversion component and a charging interface, the charging interface including a power line; the power conversion component is configured to form a charging loop with a terminal via the power line, for charging a battery of the terminal. The power adapter further includes a communication component, the charging interface further comprises a data line; during a coupling of the power adapter to the terminal, the communication component is configured to perform a bidirectional communication with the terminal via the data line.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: May 4, 2021
    Assignee: GUANG DONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Jialiang Zhang
  • Patent number: 10978875
    Abstract: An on-site ESS management device includes an editing part for selectively grouping a plurality of grid parts when a plurality of grid parts including at least one of a battery and a power converter connected to the battery are provided, a selection part for selecting a specific group, and a management part for managing the power input and output of each grid part included in the specific group.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: April 13, 2021
    Assignee: GRIDWIZ INC
    Inventors: Ku Hwan Kim, June Woo Ryu, Hyun Woong Kim, Yun Ho Jung
  • Patent number: 10971940
    Abstract: Disclosed herein are system, method, and computer program product (computer readable medium) embodiments for extending battery longevity by improving partial-state-of-charge operation of batteries. An embodiment operates by determining, using at least one processor, that at least one first battery has stopped charging at a partial state of charge, in which the at least one first battery is associated with a first battery bank and is rechargeable, and charging, in response to receipt of a command issued from the at least one processor or another processor in response to the determining, the at least one first battery using at least one second battery, in which the at least one second battery belongs to a second battery bank that is not the first battery bank, by transferring charge from the at least one second battery to the at least one first battery.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: April 6, 2021
    Assignee: International Power Supply AD
    Inventors: Alexander Stoilov Rangelov, Filip Stoilov Rangelov, Kiril Todorov Marinov, Stoil Rangelov Trifonov
  • Patent number: 10972041
    Abstract: A battery pack and charger system includes a first battery pack having a first set of battery cells and configured to provide only a first operating voltage and a second battery pack having a second set of battery cells and configured to provide the first operating voltage and a second operating voltage that is different from the first operating voltage and a battery pack charger configured to be able to charge the first battery pack and the second battery pack.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: April 6, 2021
    Assignee: Black & Decker, Inc.
    Inventors: Daniel J. White, Matthew J. Velderman, Andrew E. Seman, Jr.
  • Patent number: 10955482
    Abstract: A method and apparatus for acquiring a battery capacity and an electronic device are provided. The method includes: acquiring a charging instruction; acquiring a discharging voltage value and its corresponding capacity and a voltage threshold of a battery to be detected according to the charging instruction; acquiring a charging capacity of the battery to be detected according to the discharging voltage value and the voltage threshold of the battery to be detected; and acquiring a capacity of the battery to be detected according to the capacity corresponding to the discharging voltage value of the battery to be detected and the charging capacity of the battery to be detected.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: March 23, 2021
    Assignee: GOERTEK TECHNOLOGY CO., LTD.
    Inventors: Shuangshuai Zhu, Yong Qie
  • Patent number: 10958092
    Abstract: A semiconductor integrated circuit may include a recharge switch and a Wireless Recharge/MST unit. The recharge switch is connected with a battery through an intermediate node and provides a current path for wirely charging the battery in a wired charging mode. The Wireless Recharge/MST unit is connected between the intermediate node and a ground. The Wireless Recharge/MST unit disconnects the intermediate node and the ground in the wired charging mode, provides a wireless charging current to the battery through the intermediate node in a wireless charging mode, and is supplied with a current for generating a magnetic signal from the battery through the intermediate node in a magnetic secure transmission (MST) mode.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: March 23, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungwoo Lee, Hyoungseok Oh, Kwang Chan Lee
  • Patent number: 10958086
    Abstract: Battery systems are provided according to various embodiments. A battery system includes: a first battery rack including a first battery module having a first battery, a first rack management unit which controls charging and discharging of the first battery module, and a first rack protection circuit which interrupts current of the first battery module under control of the first rack management unit; and a second battery rack including a second battery module having a second battery, a second rack management unit which controls charging and discharging of the second battery module, and a second rack protection circuit which interrupts current of the second battery module under control of the second rack management unit, wherein the first and second rack protection circuits are controlled in parallel by the first and second rack management units.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: March 23, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jongwoon Yang
  • Patent number: 10951046
    Abstract: A battery protection circuit includes cell terminals electrically connected to a positive electrode and a negative electrode of a battery, external terminals electrically connected to positive and negative electrodes of an electronic device, discharge and charge FETs connected along a high current path between the cell terminals and the external terminals, a controller having a first terminal electrically connected to a control electrode of the discharge FET and a second terminal electrically connected to a gate electrode of the charge FET, and configured to control the charge FET and the discharge FET, a first resistor electrically connected between the control electrode of the discharge FET and the first terminal of the controller, a capacitor electrically connected between the discharge FET and the first terminal of the discharge FET, and a transistor electrically connected between the control electrode of the discharge FET and a second electrode of the discharge FET.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: March 16, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Kyong Pil Jin
  • Patent number: 10950845
    Abstract: Provided is a battery protection circuit module package capable of easily achieving high integration and size reduction. The battery protection circuit module package includes a terminal lead frame including a first internal connection terminal lead and a second internal connection terminal lead provided at two edges of the terminal lead frame and electrically connected to electrode terminals of a battery bare cell, and a plurality of external connection terminal leads provided between the first and second internal connection terminal leads and serving as a plurality of external connection terminals, and a device package including a substrate mounted on the terminal lead frame to be electrically connected to the terminal lead frame, and providing a battery protection circuit device thereon.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: March 16, 2021
    Assignee: ITM SEMICONDUCTOR CO., LTD
    Inventors: Ho-seok Hwang, Young-Seok Kim, Seong-beom Park, Sang-hoon Ahn, Tae Hwan Jung, Seung-uk Park, Jae-ku Park, Myoung-Ki Moon, Hyun-suck Lee, Da-Woon Jung
  • Patent number: 10944274
    Abstract: The present disclosure relates to apparatuses and methods of providing an ideal diode function to a battery having a protective field effect transistor (FET). An apparatus may include the protective FET configured to selectively connect an external voltage to a battery for charging the battery. The apparatus may also include a controller coupled with a gate of the protective FET via a node and configured to enable the protective FET. The apparatus may further include an override circuit coupled to the node and configured to selectively draw current away from the gate of the protective FET based on the external voltage or to interrupt the path from a controller to a protective FET. The override circuit of the apparatus may provide protection from cross-charging of the battery by a second battery while using the protective FET that is already used for charge/discharge protection.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: March 9, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Stefan Jon Kristjansson, Algird Michael Gudaitis
  • Patent number: 10938628
    Abstract: The present disclosure provides a battery management system and a communication method. The method includes: determining, by a main BMU, from a plurality of managed units a fault unit that communicates abnormally with the main BMU, and transmitting, by the main BMU, to a backup BMU a fault frequency at which the fault unit communicates abnormally with the main BMU; selecting, by the backup BMU, from the managed units a managed unit that communicates normally with the backup BMU and the fault unit as a target unit; transmitting, by the backup BMU, frequency-conversion information to the fault unit through the target unit based on the fault frequency; converting, by the fault unit, its frequency to a frequency; transmitting the frequency to the main BMU if the backup BMU communicates normally with the fault unit using the frequency; and communicating, by the main BMU, with the fault unit using the frequency.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: March 2, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhimin Dan, Wenbin Lu, Wei Zhang, Yizhen Hou, Jia Xu, Jiechao Luo, Teng Yu
  • Patent number: 10938232
    Abstract: A buffered power transfer apparatus includes rechargeable batteries. The buffered power transfer apparatus is used on demand to convert high voltage DC to low voltage DC at maximum efficiency with minimum standby losses. The buffered power transfer apparatus may be used in a Wave Energy Converter.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: March 2, 2021
    Assignee: OCEAN POWER TECHNOLOGIES, INC.
    Inventor: Joseph Sarokhan
  • Patent number: 10938017
    Abstract: A battery module includes plurality of prismatic battery cells. Each prismatic battery cell includes a casing housing electrochemically active components and a cover assembly. The cover assembly includes a cover, a terminal protruding through the cover, a current collector electrically coupled to the terminal, and an overcharge protection assembly between the terminal and current collector. The overcharge protection assembly includes a spiral disk and a vent disk physically and electrically coupled, wherein the vent disk is between the spiral disk and the terminal and includes a concave structure forming a cavity between the vent disk and the terminal. The vent disk is configured to deform into the cavity and break when a pressure within the casing exceeds a threshold value. The spiral disk is configured to apply a shearing force to the vent disk when the vent disk deforms to facilitate the breakage to interrupt electrical current flow.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 2, 2021
    Assignee: CPS TECHNOLOGY HOLDINGS LLC
    Inventor: Xugang Zhang
  • Patent number: 10930982
    Abstract: A device that controls charging and discharging of a lithium ion battery (3) that starts an engine starter (1), includes: a voltage sensor (S1) that detects the voltage of the lithium ion battery; a current sensor (S2) that detects the current of the lithium ion battery; and a control section (30) that controls charging and discharging of the lithium ion battery. The control section (30) calculates capacity degradation rates of a cathode and anode of the lithium ion battery based on detected values of the voltage sensor and the current sensor at the time when a first time has elapsed, and at the time when a second time longer than the first time has elapsed, from startup of the engine starter, and limits the charging and discharging of the lithium ion battery based on comparison results between the capacity degradation rates and determination criterion values.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: February 23, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Tenyu Yan, Takashi Utsunomiya
  • Patent number: 10923776
    Abstract: Systems and methods for monitoring and responding to forces influencing batteries of electronic devices are provided. One or more sensors may be provided at various positions within a battery assembly including one or more battery cells within an enclosure. In some embodiments, a sensor may be provided between a battery cell and a portion of the enclosure. In other embodiments, a sensor may be positioned between two adjacent cells in a stack. Each sensor may detect a force influencing a battery cell of the assembly. In some embodiments, the sensor may be a force sensing material having a conductance configured to vary based on the influencing force. In other embodiments, the sensor may be a contact sensor that detects when the influencing force moves two elements together.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: February 16, 2021
    Assignee: Apple Inc.
    Inventors: Bradley L. Spare, Robert Sean Murphy
  • Patent number: 10923940
    Abstract: A charger power supply successively performs a constant-current charging process and constant-voltage charging process in accordance with a compensation signal. The process includes a plurality of first time periods during which a first output current is provided and a plurality of second time periods during which a second output current is provided. One of a current feedback loop and a voltage feedback loop is selected by comparing output signals of two loops. The current feedback loop has a first reference voltage compensated by a difference between a first voltage corresponding to a first output voltage during the plurality of first time periods and a second voltage corresponding to a second output voltage during the plurality of said time periods.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: February 16, 2021
    Assignee: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) LTD.
    Inventor: Lili Liu
  • Patent number: 10920665
    Abstract: A method and system for exercising a standby generator is disclosed. The standby generator can be exercised in at least two different exercise cycles, including an express exercise cycle and an extended exercise cycle. The system and method operates the generator for an express exercise cycle having a first duration when the ambient temperature at or near the standby generator exceeds a minimum threshold temperature. If the ambient temperature does not exceed the minimum threshold temperature, the express exercise cycle does not begin. In addition to the express exercise cycle, the engine of the standby generator is started and run for an extended exercise cycle having a duration that exceeds the duration of the express exercise cycle. The extended exercise cycles are separated by a first interval while the express exercise cycles are separated by a second interval, where the first interval is longer than the second interval.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: February 16, 2021
    Assignee: Briggs & Stratton, LLC
    Inventors: Michael Miller, Dean Weigand, Rick Jungmann, Robert Townsend
  • Patent number: 10924008
    Abstract: A converter includes a plurality of switching elements coupled between power signal lines that receive a first voltage from an external power source. The converter includes at least one capacitance, and at least one connector including a first port coupled to the first battery and a first power signal line of the power signal lines, a second port coupled to the second battery and a second power signal line of the power signal lines, and a third port coupled to an output line. The output line is coupled between the first battery and the second battery. The converter includes a resonant circuit coupled to the plurality of switching elements. During a charging mode, the plurality of switching elements, the resonant circuit and the at least one capacitance operate to balance voltages of the first battery and the second battery through the first, second, and third ports.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: February 16, 2021
    Assignee: NIO USA, Inc.
    Inventors: Miaosen Shen, Feng Guo
  • Patent number: 10910675
    Abstract: A nonaqueous electrolyte secondary battery according to the present invention includes: an electrode body including a positive electrode including a positive-electrode active material layer; an external terminal connected to the electrode body; a nonaqueous electrolyte including a gas generant, and a current interrupt device. A content of the gas generant is at least 4 mass %. The positive-electrode active material layer includes, as a positive-electrode active material, a complex oxide containing at least zirconium (Zr) and calcium (Ca) as constituent elements. When a sum total of metal elements, except metal that becomes a charge carrier, in the complex oxide is 100 mol % in terms of a mole percentage, the complex oxide contains Zr from 0.1 mol % to 0.5 mol % inclusive and Ca from 0.1 mol % to 0.3 mol % inclusive.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: February 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyuki Saka, Keiichi Takahashi, Hideaki Fujita
  • Patent number: 10910616
    Abstract: Disclosed is a battery pack for a vehicle, which includes a pack case forming an appearance of the battery pack, a static electricity inducing pattern forming a conductor pattern of a predetermined form on a BMS circuit board provided in the pack case and a discharge terminal connected to the static electricity inducing pattern, and a cable connector for both communicating and grounding, which is composed of a pack connector having a first connection portion configured to be connected to a data transmission terminal on the BMS circuit board and a second connection portion configured to be connected to the discharge terminal, and a vehicle connector connected to the pack connector by a harness cable and installed to the pack case to be exposed out through a connector mounting hole formed through the pack case.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: February 2, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Yong-Joon Choi, Do-Hyeon Kim, Hwa-Joong Kim, Jun-Yeob Seong, Sung-Chun Yu
  • Patent number: 10908222
    Abstract: Provided is a battery lifetime estimating method including steps of: fully charging a battery according to a predetermined charging condition; partially discharging the fully charged battery according to a predetermined discharging condition; acquiring voltage information at a plurality of predetermined measurement time points while performing the partially discharging; and estimating a remaining capacity of the battery by using the acquired voltage information. Herein, the step of estimating the remaining capacity of the battery includes steps of: calculating the capacity of the battery in one cycle of fully charging/discharging in which the measurement is performed from the measured voltage drop amounts; and estimating the remaining lifetime of the battery by applying a statistical technique to the capacity of the battery calculated with respect to a plurality of cycles of fully charging/discharging.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: February 2, 2021
    Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATION
    Inventors: Sang Hui Park, Hwa Seob Song, Ji Sung Kim, Joo Ho Choi, Jae Wook Lee
  • Patent number: 10903464
    Abstract: A battery module having a plurality of battery cells is described. The battery module includes a head unit with corresponding conical positive and negative terminals that allow additional battery modules to mate together and be electrically coupled in an end-to-end relationship. A plurality of battery modules can be combined together into rows of modules that are the electrically coupled to form a multi-modular battery system. The multi-modular battery system uses interchangeable individual battery modules for ease of replacement. Battery modules of a multi-modular battery system can communicate with each other using optical communication methods, including via line-of-sight and/or optical cables.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: January 26, 2021
    Assignee: Artisan Vehicle Systems Inc.
    Inventor: Brian R. Huff
  • Patent number: 10903644
    Abstract: Provided is a control device that stops the power supply when the first FET is short-circuited. In the control device, a boost circuit increases the voltage of one end of a resistor on the boost circuit side to a predetermined voltage that is higher than the source voltage of the first FET. An AND circuit instructs the discharge circuit to decrease the voltage at the other end of the resistor when the voltage at the other end of the resistor is less than a threshold voltage if the AND circuit instructs the boost circuit to increase the voltage at the one end of the resistor on the boost circuit side. The threshold voltage exceeds the voltage at the one end of the resistor if the voltage at the one end of the resistor on the boost circuit is the predetermined voltage and if the first FET is short-circuited.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: January 26, 2021
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Shinnosuke Nakaguchi, Masayuki Kato, Shunichi Sawano, Takeo Uchino
  • Patent number: 10903463
    Abstract: A battery pack includes a casing, a plurality of battery cells, and a first connector, for example. The casing includes a first outer wall and a protrusion that is provided on the first outer wall and protrudes outward from the first outer wall. The battery cells include an electrode terminal and are housed in the casing. The first connector is provided on the protrusion and is electrically connected to the electrode terminal.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 26, 2021
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Norio Shimizu, Toshinori Uchida, Kazuto Kuroda, Masahiro Sekino
  • Patent number: 10897146
    Abstract: A battery protection integrated circuit which is used to construct a system configured to serially communicate among a plurality of the battery protection integrated circuits, the battery protection integrated circuit includes: a higher-level transmission terminal; a lower-level reception terminal; an acquisition device configured to acquire transmission information to transmit to the higher-level circuit; and a storage configured to store at least one of transmitted information transmitted from the lower-level circuit and the transmission information acquired by the acquisition device, the battery protection IC being configured to transmit, in response to reception of instructive information indicating an instruction for the higher-level circuit to read the transmitted information, one of the transmitted information and the transmission information from the higher-level transmission terminal to the higher-level circuit, and simultaneously receive, by the lower-level reception terminal, transmitted informatio
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: January 19, 2021
    Assignee: ABLIC INC.
    Inventor: Biao Shen
  • Patent number: 10892622
    Abstract: One embodiment provides a method, including: receiving information, from at least one energy subsystem, indicating a desired amount of photovoltaic output to be produced by at least one photovoltaic panel, wherein the at least one photovoltaic panel comprises at least one photovoltaic harvester; ascertaining the amount of photovoltaic output being produced by the at least one photovoltaic panel; determining the difference between the desired amount of photovoltaic output and the amount of photovoltaic output being produced; identifying the maximum possible amount of photovoltaic output that could be produced by the at least one photovoltaic panel; and optimizing, using an optimization technique, the amount of photovoltaic output produced by the at least one photovoltaic harvester by adjusting at least one characteristic of the at least one photovoltaic harvester, wherein the adjusting comprises: if the difference is less than the maximum possible amount, adjusting at least one characteristic of the at least o
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: January 12, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ranjini B. Guruprasad, Jagabondhu Hazra, Shivkumar Kalyanaraman, Sukanya Randhawa
  • Patent number: 10886759
    Abstract: A battery for supplying current to a device includes one or more battery cores and a battery management system (BMS) electrically connected to the one or more battery cores. The BMS is configured to receive a controlling signal from a control unit of the device and control the one or more battery cores to supply current to the device based on the controlling signal.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 5, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Dayang Zheng, Wentao Wang, Lei Wang, Hao Luo, Jie Tian, Chaobin Chen
  • Patent number: 10879708
    Abstract: A method includes receiving current measurements from at least one current sensor configured to measure current of a battery system in communication with a power distribution network having a power plant. The method also includes receiving voltage measurements from at least one voltage sensor configured to measure voltage of the battery system and temperature measurements from at least one temperature sensor configured to measure temperature of the battery system. The method includes determining an impedance parameter of the battery system based on the received measurements, a temperature parameter of the battery system based on the received measurements, a predicted voltage parameter based on the impedance parameter, and a predicted temperature parameter based on the temperature parameter. The method includes commanding the battery system to charge power from the power plant or discharge power from the power plant based on the predicted voltage parameter and the predicted temperature parameter.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: December 29, 2020
    Assignee: Eos Energy Storage, LLC
    Inventors: Kamel Belkacem-Boussaid, George W. Adamson
  • Patent number: 10873207
    Abstract: A battery system a plurality of battery strings, a charge equalization circuit, a relay matrix, and a balance controller. The plurality of battery strings comprises at least three batteries connected in series, where the battery strings are connected in parallel. The charge equalization circuit is capable of transferring charge between a pair of series connected batteries. The relay matrix is operatively connected between the charge equalization circuit and the plurality of battery strings. The balance controller operates the relay matrix based on at least one of a voltage and a current of any one of the batteries such that the charge equalization circuit is connected across any one of the pairs of series connected batteries in any one of the plurality of battery strings such that the charge equalization circuit transfers charge between the batteries in the pair of series connected batteries to which the charge equalization circuit is connected.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: December 22, 2020
    Assignee: ALPHA TECHNOLOGIES SERVICES, INC.
    Inventors: James Joseph Heidenreich, Michael A. Haass, Thanh Quoc Le, Seth William Jennings
  • Patent number: 10873193
    Abstract: A charging path switching circuit includes a first port, a second port, a path switch unit, and a conversion unit. The first port is connected to an external electronic device to obtain a first electrical signal. The second port is connected to an external power source to obtain a second electrical signal. The conversion unit is connected the path switch unit and converts the first electrical signal or the second electrical signal to a predetermined voltage. The path switch unit is connected to the first port and the second port. The path switch unit selects to connect to the first port or the second port, to obtain the first electrical signal or the second electrical signal according to the connection of the first and the second port. The path switch unit preferentially selects to obtain the second electrical signal from the second port.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: December 22, 2020
    Assignee: AMBIT MICROSYSTEMS (SHANGHAI) LTD.
    Inventor: Yu-Hu Yan
  • Patent number: 10857904
    Abstract: An ECU performs processing including steps as follows: in a case where an actual SOC is more than or equal to an upper limit value SOC(0) and a vehicle is in a Ready-Off state, when an SMR is in a cut-off state, the ECU performs the step of discharging a battery using discharging devices, and when the SMR is not in the cut-off state, the ECU performs the step of discharging the battery using an MG.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: December 8, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takayuki Fukuike
  • Patent number: 10855183
    Abstract: Methods and circuits are provided for controlling an electronic switch such that it may be controlled by an external control signal, such as a PWM signal, or be set to operate in an active-diode mode, wherein current is allowed to flow through the switch in only one direction. The described circuits are configured to autonomously control the electronic switch, such that no external control signal is required when the active-diode mode is used. The provided techniques allow electronic switches to be efficiently used as part of a power stage or part of an active rectifier, so as to support bi-directional switched-mode power supplies, motor/generator drivers, and related electric circuits that require bi-directional power flow. By reusing electronic switches thusly and implementing an active-diode mode, the circuitry is minimized while maintaining good power efficiency.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: December 1, 2020
    Assignee: Infineon Technologies AG
    Inventors: Jens Barrenscheen, Benno Koeppl
  • Patent number: 10855089
    Abstract: A charging control device includes a detector detecting a temperature of a battery; a controller causing the charger to stop charging the battery in response to the temperature of the battery falling outside a first range during the charging of the battery; an obtainer obtaining, from the charger, information that is capable of identifying a charging characteristic of the charger; a range setter setting the first range to be a temperature range that corresponds to the charging characteristic of the charger based on the information obtained in the obtainer.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: December 1, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Tadahiko Kobayakawa, Junichi Katayama
  • Patent number: 10846786
    Abstract: A storage battery module rental system includes a storage battery module prepared in each providing point that is dispersedly distributed and that can be rented to a user, an acquisition unit configured to acquire individual information of a plurality of the users and module information from the storage battery module, the user being a rentee candidate of the storage battery module, a determining unit configured to determine an incentive given for renting the storage battery module based on the individual information and the module information in such a way that the incentive could differ for each user; and a notifying unit configured to notify the user of the incentive determined by the determining unit for each of the users.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: November 24, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Iwai, Koji Yamada, Marie Ishikawa, Akinori Sato, Masanori Ishigaki, Shuji Tomura, Shigeaki Goto, Makoto Kusakabe, Tomoki Nishi, Akira Shichi, Hiroyuki Yamada
  • Patent number: 10845418
    Abstract: A method and a device operate an energy storage cell having a cathode, an anode, an electrolyte, a first reference electrode which has a first capacity for storing an electric charge, and a second reference electrode which has a second capacity for storing an electric charge, the second capacity being larger than the first capacity. The method detects at least one electrode voltage between the one cathode or anode and the second reference electrode; determines the charge state of the energy storage cell using the at least one electrode voltage; detects a reference voltage between the second reference electrode and the first reference electrode; connects a current source to the first reference electrode and the second reference electrode such that the charge state of the first reference electrode and the second reference electrode changes; and separates the current source from the first reference electrode and the second reference electrode.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: November 24, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Jan Philipp Schmidt
  • Patent number: 10838010
    Abstract: Estimating cell capacitance includes learning a function that returns capacitance as a function of an earlier capacitance and a physical characteristic that is correlated with changes in that capacitance and using a supervised learning algorithm on a learning database that has values of the capacitance, values of that physical characteristic measured concurrently with the capacitance and a preceding value of the capacitance.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: November 17, 2020
    Assignee: Renault S.A.S.
    Inventors: Vincent Heiries, Paul-Henri Michel
  • Patent number: 10840898
    Abstract: A semiconductor device and electronic control device capable of shutting off the reverse current flow from a load to a power supply is provided. The power transistor QN1 is provided between the positive power supply terminal Pi2(+) and the load-driving terminal Po2(+), and has a source and a back-gate coupled to the positive power supply terminal Pi2(+). The power transistor QN2 is provided in series with the power transistor QN1, and its sources and backgates are coupled to the load-driving terminal Po2(+). The booster CP1a charges the gates of the power transistors QN1. The gate discharge circuit DCG1a discharges the gate charge of the power transistor QN1 to the source when the potential of the negative power supply terminal Pi2(?) is higher than the potential of the positive power supply terminal Pi2(+).
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: November 17, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Osamu Soma
  • Patent number: 10840724
    Abstract: The herein described technology provides a device with at least two batteries having disparate charge characteristics connected in parallel and sharing a single charging node. The device further includes an adjustable resistance in a charge path between the single charging node and a first battery of the two disparate batteries, and charge control circuitry that dynamically determines a charge rate for the first battery based on a detected battery parameter and controls the adjustable resistance to charge the first battery at the determined charge rate.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 17, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Stefan Jon Kristjansson
  • Patent number: 10830822
    Abstract: A power storage system includes a power storage device including cells connected in parallel with each other; a voltage sensor; a current sensor; a data acquisition unit configured to acquire voltage-current data sets; a linear approximation processing unit configured to perform first-order linear approximation on the acquired voltage-current data sets using a function form, Y=aX+b where Y denotes a voltage between terminals of the power storage device at a time of charging/discharging and X denotes a charge/discharge current, and to obtain constants a, b and a ratio b/a between the constants; and a determination unit configured to determine that variation in SOC has not occurred among the cells when the ratio b/a is within a prescribed constant ratio range, and to determine that the variation in SOC has occurred among the cells when the ratio b/a is not within the prescribed constant ratio range.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: November 10, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Makoto Ishikura
  • Patent number: 10833379
    Abstract: An electric vehicle system for transporting human passengers or cargo includes an electric vehicle that includes a body, a plurality of wheels, a cargo area, an electric motor for propelling the electric vehicle, and a primary battery for providing electrical power to the electric motor for propelling the electric vehicle. An auxiliary battery module is attachable to the electric vehicle for providing electrical power to the electric motor via a first electrical connector at the auxiliary battery module and a second electrical connector at the electric vehicle that mates with the first electrical connector. The auxiliary battery module can be positioned in the cargo area while supplying power to the electric motor, and can be removable and reattachable from the electric vehicle. The auxiliary battery module includes an integrated cooling system for cooling itself during operation of the electric vehicle including a conduit therein for circulating coolant.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: November 10, 2020
    Assignee: Rivian IP Holdings, LLC
    Inventors: Robert J. Scaringe, Charles Chang, Henry Huang, Patrick Hunt
  • Patent number: 10819238
    Abstract: A power supply system and method include multiple power conversion units (PCUs) with independent power generation control and a PCU-to-PCU regulation of power, handoff control system to transfer control of power regulation to a load among the PCUs. The multiple PCUs maintain independent power generation control to collectively provide power to the load and handoff regulation of the power to the load from one PCU to another PCU. The term “handoff” refers to communication between PCUs that affects a transfer and acceptance of regulation of power control. The independent PCU power generation control with singularly located but transferable control of the regulation of power provides a flexible dynamic power supply.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: October 27, 2020
    Assignee: Cirrus Logic International Semiconductor, Ltd.
    Inventors: Eric J. King, Eric B. Smith, Hasnain Akram, Sean Davis
  • Patent number: 10807498
    Abstract: A control method for a series hybrid power system or synergic electric power supply and a control device thereof are disclosed. The control device includes: a generator reference current value generating module and a generator current control module. The generator reference current value generating module is configured to generate a reference current value of a generator according to an actual current value of an energy storage device, a reference current value of the energy storage device, an actual voltage value of a DC bus, and a reference voltage value of the DC bus. The generator current control module is configured to generate a control signal of a rectifier according to the reference current value of the generator, the actual value of any two-phase current of the generator, and an actual angular velocity of the generator, thereby controlling the series hybrid power system or the synergic electric power supply.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: October 20, 2020
    Assignee: INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES
    Inventors: Youlong Wang, Hongyang Li, Meng Peng, Jialin Wei, Xuhui Wen