Serially Connected Batteries Or Cells Patents (Class 320/116)
  • Patent number: 10296070
    Abstract: A power-gating electronic system for synchronized power transitions, includes a power generation block including a plurality of cells, each cell including a cell enabling input; a circuit block including a plurality of circuits, each circuit including a circuit enabling input; and a power-gating controller including a plurality of gate signal outputs. In the power-gating electronic system, each gate signal output is coupled to one of the cell enabling inputs and one of the circuit enabling inputs.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: May 21, 2019
    Assignee: Winbond Electronics Corporation
    Inventor: Young Tae Kim
  • Patent number: 10286789
    Abstract: A secondary battery charger system in which a chargeable power is calculated on the basis of a difference between a charging target voltage and a cell voltage using a charging control unit that controls a charger used to charge a secondary battery, the secondary battery charger system including a charging threshold voltage setting unit configured to set the charging target voltage to be lower than a charging limitation voltage which is an upper limitation of the cell voltage allowable in design. The charging control unit stops the charging if a predetermined charging stop condition is satisfied while the cell voltage exceeds the charging target voltage and is lower than the charging limitation voltage.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 14, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hayato Nagakura, Kenichi Sakai, Kenji Hosaka, Kazuma Tamai, Hiroto Okabe
  • Patent number: 10279415
    Abstract: A drawn arc welding device includes a welding tool, and an energy storage device coupled to a power source. A charging circuit is connected to the energy storage device replenishing the storage device. A discharge circuit is connected to the welding tool and energy storage device. The discharge circuit regulates and adjusts a welding current of the welding tool to a specified amount. Also disclosed is a process that includes charging the energy storage device, actuating the welding tool, energizing a pilot arc current, lifting the weld stud off a workpiece to draw the pilot arc, energizing a welding arc wherein the discharge circuit regulates a welding current of the welding tool to a specified amount, and plunging the weld stud into the workpiece and turning off the discharge circuit.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: May 7, 2019
    Assignee: Nelson Stud Welding, Inc.
    Inventors: Christopher Hsu, Larry Church
  • Patent number: 10283972
    Abstract: A control circuit of a battery branch in a battery system is provided. The control circuit includes a relay unit, a switch unit and a control unit. The relay unit is coupled to the battery branch. The switch unit is coupled in parallel with the relay unit. The control unit is coupled to the relay unit and the switch unit, and is arranged for controlling switching of the relay unit and the switch unit in order to selectively conduct a branch current flowing through the battery branch. A control method of a battery branch in a battery system is provided. The control method includes the following steps: coupling a relay unit to the battery branch, and coupling a switch unit in parallel with the relay unit; and controlling switching of the relay unit and the switch unit in order to selectively conduct a branch current flowing through the battery branch.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: May 7, 2019
    Inventor: Fu-Sheng Tsai
  • Patent number: 10284009
    Abstract: An uninterruptible power supply includes a battery unit including battery racks divided into at least one first battery rack including a first battery and at least one second battery rack including a second battery; an overall control unit configured to determine an operation mode of the battery unit from among a discharge mode and a charge mode, and a measurement unit configured to monitor an amount of accumulated power consumption of the load during each of a plurality of time periods and transmitting data associated with the monitoring to the overall control unit.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 7, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sangsoo Park, Hyunsang Cho
  • Patent number: 10256443
    Abstract: Provided herein is a battery pack including a plurality of secondary batteries, a containing member, a protective member, and a wiring member. The plurality of secondary batteries include a plurality of terminals at each secondary battery. The containing member contains the plurality secondary batteries to expose the plurality of terminals. The protective member includes a plurality of openings, and the plurality of secondary batteries contained in the containing member are covered with the protective member to expose the plurality of terminals from the plurality of openings. The wiring member is coupled to the plurality of terminals exposed from the plurality of openings. One or both of the containing member and the protective member include one or both of a ceramic material and a polymer material having a heat resistance temperature of 300° C. or higher.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: April 9, 2019
    Assignee: Murata Manufactruing Co., Ltd.
    Inventor: Fumihiko Suzuki
  • Patent number: 10247087
    Abstract: Systems and methods for monitoring the temperature of a liquid are disclosed herein. Systems can include a thermistor in contact with a liquid coolant and circuitry configured to measure a temperature of the thermistor by applying a nominal current through the thermistor and detecting a voltage drop across the thermistor. The circuitry may be further configured to apply a current pulse greater than the nominal current through the thermistor, detect a transient thermistor response to the current pulse, and compare the detected transient thermistor response to an expected transient response. The circuitry may be capable of determining if the thermistor is immersed in a fluid or at least partially located within a fluid-free region based on comparing the detected transient thermistor response to the expected transient response.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: April 2, 2019
    Assignee: FARADAY & FUTURE INC.
    Inventors: Caio D. Gubel, Phillip John Weicker
  • Patent number: 10243923
    Abstract: The present disclosure relates to a communication ID allocation method and system of a battery management module. The system according to the present disclosure includes a first to nth battery management modules sequentially connected through a communication interface, wherein each battery management module designates itself as a master module or a slave module depending on whether or not a pulse signal is received from a battery management module at a higher level, and each battery management module allocates its communication ID according to a pulse width of the pulse signal received from the battery management module at a higher level, generates a pulse signal having the pulse width corresponding to the communication ID of the battery management module at a lower level, and outputs the generated pulse signal to the battery management module at a lower level.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: March 26, 2019
    Assignee: LG CHEM, LTD.
    Inventor: Yong-Min Jo
  • Patent number: 10243384
    Abstract: A battery charge apparatus and a charge system are disclosed. The charge apparatus includes first and second charge module connected to each other. The first charge module is connected to an auxiliary power, makes a processor thereof generate a charge-unit-address code for the charge unit thereof, and turns on an auxiliary switch thereof for transmitting the auxiliary power to the second charge module for activated the second charge module. The second charge module then sends a charge-module-address request to the first charge module to ask for a charge-module-address code. Thereafter, the first charge module performs charge procedure and informs the second charge module to perform charge procedure when battery connected to the first charge module is fully charged. The second charge module then performs charge procedure and sends fully charged information to the first charge module when the battery connected to the second charge module is fully charged.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: March 26, 2019
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventors: Chien-Hung Chen, Chao-Ching Hsu, Chu-Yen Wu, Chung-Shu Lee
  • Patent number: 10243243
    Abstract: A battery includes a cell including a core and a sealing film enclosing the core. The core includes a negative electrode plate, a metal plate, a separator, and a positive electrode plate arranged successively. The battery further includes a protection circuit coupled to the negative electrode plate and one of the metal plate or the positive electrode plate to measure a reference voltage between the negative electrode plate and the one of the metal plate or the positive electrode plate.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: March 26, 2019
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventors: Baoning Huang, Bingcai Luo
  • Patent number: 10236538
    Abstract: The battery management system can automatically re-combine batteries in a battery set in parallel connection or in series connection or in mixed series-parallel connection, or mixed parallel-series connection, and makes each individual cell in a battery being accessible, such that each individual cell can be monitored (i.e. its parameters can be measured) and charged or discharged. Therefore, with this system, batteries can be charged or discharged to their best performance.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: March 19, 2019
    Inventors: Laurence Lujun Chen, Di (Laura) Chen, Michael Meng Chen
  • Patent number: 10230247
    Abstract: The present disclosure is directed to a system and method for controlling an energy storage system. The energy storage system includes a plurality of parallel-connected energy storage devices. The method includes determining, by one or more controllers, a limiting energy storage device based at least in part on a current rating for the limiting energy storage device. The method includes determining, by the one or more controllers, an adjusted allowable system current based at least in part on modifying one or more operational parameters of the limiting energy storage device. The method includes determining, by the one or more controllers, a modified operational parameter of the limiting energy storage device to increase the allowable system current of the energy storage system. The method includes controlling the limiting energy storage device based at least in part on the modified operational parameter.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: March 12, 2019
    Assignee: General Electric Company
    Inventors: Kenneth McClellan Rush, Richard Scott Bourgeois, David Eugene James, Joshua Paul Webb, Mark Edward Gotobed
  • Patent number: 10228423
    Abstract: A semiconductor device, a battery monitoring system, and a detection method are provided. An end of the capacitor (C1) is switchable to be connected to one of a positive electrode and a negative electrode of a battery cell. An end of a capacitor (C2) is switchable to be connected to the other electrode. A comparator includes a non-inverted input terminal connectable to the battery cell via the capacitor (C1), and an inverted input terminal connectable to the battery cell via the capacitor (C2). A capacitor (C3) is located between a node (inp) and a switch (S1) that switches a connection state between a ground voltage source and any one of reference voltage sources. A capacitor (C4) is located between a node (inn) and a switch (S2) that switches a connection state between the ground voltage source and any one of the reference voltage sources.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: March 12, 2019
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventor: Kenji Yanagawa
  • Patent number: 10220708
    Abstract: The present invention relates to a battery system having a battery which is designed to supply a high-voltage power system and can be connected by at least one of its high-voltage power system terminals via a contactor (10), which battery system comprises a control coil (20), and closes in one state in which a control current flows through the control coil, and opens in a further state in which no current flows through the control coil. In this context, in order to generate the control current, the control coil can be connected via a supply circuit (80) to a supply unit (50) by means of which a predetermined voltage can be made available which is lower than the voltage generated by the battery.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: March 5, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Michael Steil, Gergely Galamb
  • Patent number: 10224724
    Abstract: A charge/discharge management device relating to the present invention is provided in equipment including a storage battery system. The storage battery system includes a plurality of PCS groups. Each of the PCS groups includes a storage battery, a BMU, and a PCS. The charge/discharge management device includes an operation time SOC calculation unit, a stop time SOC estimation unit, and an initial SOC resetting unit. The operation time SOC calculation unit calculates an operation time SOC for which an SOC based on an integrated value of a current value supplied from the BMU is added to an initial SOC of the storage battery, for each of the plurality of PCS groups. The stop time SOC estimation unit stops charge/discharge of the some group in the case that a stop condition is established, and thereafter, estimates a stop time SOC of the storage battery based on a voltage value supplied from the BMU for the some group.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: March 5, 2019
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Masato Hanada, Daisuke Tsurumaru
  • Patent number: 10214108
    Abstract: A DC voltage power source, comprising: first electrochemical cells electrically connected in series; a DC/DC converter, the output of the converter being connected in series with said first electrochemical cells, a secondary DC voltage source applying its potential difference to the input of the converter.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: February 26, 2019
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Sebastien Carcouet, Daniel Chatroux, Matthieu Desbois-Renaudin
  • Patent number: 10195948
    Abstract: A technique controls charge on a lithium battery of a utility vehicle. The technique involves operating electronic circuitry of the utility vehicle in a normal operating mode in which the electronic circuitry charges the lithium battery to a normal charge level. The technique further involves, after operating the electronic circuity in the normal operating mode, transitioning the electronic circuitry from the normal operating mode to a storage mode in which the electronic circuitry is configured to set an amount of charge on the lithium battery to within a predefined storage range (or level) which is lower than the normal charge level. The technique further involves, in response to transitioning the electronic circuitry, adjusting the amount of charge on the lithium battery from an initial charge level which is outside the predefined storage range to an adjusted charge level which is within the predefined storage range.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 5, 2019
    Assignee: Textron Innovations Inc.
    Inventors: Luke Anthony O'Hara, Arthur James Harvey, John Ledden, Russell William King
  • Patent number: 10181748
    Abstract: A power storage system includes: a power generation element that performs environmental power generation; a storage battery that is supplied with power generated by the power generation element; a DC/DC converter that converts an output voltage from the power generation element into a predetermined voltage; a first switch unit that switches whether directly supply the output voltage from the power generation element to the storage battery or to supply thereto via the DC/DC converter; and a first changeover unit that compares a voltage of the storage battery with a first threshold voltage, and controls the first switch unit according to a comparison result, in a case where a voltage of the voltage or higher of the storage battery bringing the DC/DC converter into a main boost mode is the first threshold voltage.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: January 15, 2019
    Assignee: FUJIKURA LTD.
    Inventors: Kazuhiro Yamamoto, Ryoji Yanagimoto, Yuji Yamada, Kenjiro Yano, Kenichi Okada
  • Patent number: 10181745
    Abstract: The present disclosure discloses a charging system, a charging method and a power adapter. The system includes a battery, a first rectifier, a switch unit, a transformer, a compositing unit, a sampling unit, and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to a voltage sampling value and/or a current sampling value obtained by primary sampling of the sampling unit, such that a second alternating current outputted by the compositing unit meets a charging requirement. The second alternating current is applied to the battery.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: January 15, 2019
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jialiang Zhang, Chen Tian, Jun Zhang, Shebiao Chen, Shiming Wan, Jiada Li
  • Patent number: 10164446
    Abstract: The discharge circuit malfunction diagnosis device configured to diagnose a malfunction of a discharge circuit, which is to be applied to a power supply system including: an assembled battery including a plurality of cells; a discharge circuit which is configured to discharge the each of the plurality of cells when driven; and a voltage adjustment section configured to determine, based on voltages of the respective plurality of cells of the assembled battery, a target cell voltage and a cell to be discharged, and configured to drive a discharge circuit for the cell to be discharged in accordance with the target cell voltage, includes a malfunction diagnosis section configured to compare a discharge circuit pre-driving voltage and a discharge circuit post-driving voltage of the cell to be discharged, to thereby diagnose a malfunction of a discharge circuit corresponding to the cell to be discharged.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: December 25, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yasukazu Murata, Masami Nakashima, Shingo Yamaguchi
  • Patent number: 10153658
    Abstract: A battery module is provided including a battery module connector configured to engage with a backplane connector on a backplane board associated with an uninterruptible power supply (UPS). When the battery module connector is engaged with the backplane connector a circuit is completed that instantaneously indicates to the UPS that the battery module is connected. When the battery module connector is disengaged from the backplane connector the circuit is opened and instantaneously indicates to the UPS that the battery module is disconnected.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: December 11, 2018
    Assignee: Eaton Intelligent Power Limited
    Inventors: Pradeep Kumar Nandam, David Glenn Miller
  • Patent number: 10153636
    Abstract: An electrically-powered vehicle comprising a hybrid battery system is disclosed. The vehicle comprises a motor and a hybrid battery system coupled to the motor. The hybrid battery system comprises a first battery of a first energy density and a first power density and a second battery in parallel with the first battery. The second battery has a second energy density lower than the first energy density and a second power density greater than the first power density. The vehicle is configured to draw power disproportionally from the first battery in a first mode and disproportionally from the second battery in a second mode.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: December 11, 2018
    Assignee: Kitty Hawk Corporation
    Inventors: Damon Vander Lind, George James Hansel
  • Patent number: 10153631
    Abstract: An electrical protection device including an input line, an output terminal, and a power transistor coupled between the input line and the output terminal A sensing transistor is connected between the input line and the output terminal and has a body terminal. A control stage is coupled to respective control terminals of the power transistor and of the sensing transistor and is configured to limit a first current of the power transistor to a protection value. A body-driving stage is coupled to the body terminal and is configured to bias the body terminal of the sensing transistor as a function of an operating condition of the power transistor.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: December 11, 2018
    Assignee: STMicroelectronics S.r.l.
    Inventors: Antonino Torres, Davide Giuseppe Patti
  • Patent number: 10151801
    Abstract: A method for monitoring the status of a plurality of connected battery cells in a battery pack includes: arranging the battery cells in at least two groups of cells; connecting the groups of cells to a sensor unit; and providing a measurement of at least one parameter indicative of the state of operation of the battery pack by the sensor unit. The method further includes arranging the groups of cells in a manner so that at least two of the groups include two or more cells and at least two of the groups overlap so that a cell forms part of the overlapping groups; and connecting the sensor unit to the groups; and wherein the number of groups is less than the number of cells.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: December 11, 2018
    Assignee: Volvo Truck Corporation
    Inventors: Esteban Gelso, Jonas Hellgren
  • Patent number: 10145521
    Abstract: An LED strip-shaped lamp with a connecting structure includes a first lamp housing, a plug disposed on the first lamp housing, a second lamp housing coupled with the first lamp housing, and a socket on the second lamp housing coupled to the plug. The plug includes a first magnet disposed at an end of the first lamp housing and a first electrical connector fixed in the first pad. The socket includes a second magnet at an end of the second lamp housing and a second electrical connector fixed in the second pad. When the magnets are coupled, the first and the second electrical connector are coupled to connect electrically. The magnets used in the connecting structure of the LED strip-shaped lamp of the present invention can be used as a structure for connecting the first and second lamp housing so as to simplify the connection of the strip-shaped lamps.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 4, 2018
    Assignee: Self Electronics Co., Ltd.
    Inventors: Bozhang Xu, Wen Wang, Zhiming Wang
  • Patent number: 10141750
    Abstract: A battery apparatus with voltage-balancing control and a method controlling the same employ a voltage-balancing module, which balances voltage values of multiple series-connected batteries of the battery apparatus, and accumulates voltage difference values of each battery relative to reference voltage values to adjust an allowable discharge control parameter Duty for each battery. By virtue of a cycle for updating the Duty, voltage differences of the multiple series-connected batteries can be lowered below a preset value.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: November 27, 2018
    Assignee: Cyber Power Systems Inc.
    Inventors: Hung-Ming Hsieh, Yung-Hao Peng, Shih-Chien Tang
  • Patent number: 10135280
    Abstract: A charging circuit for providing a charge current sent to a battery is disclosed. The charging circuit includes a linear regulator for converting a power voltage into a first indication voltage; a voltage divider circuit for generating a frequency response to convert the first indication voltage into a second indication voltage; and a charger for providing the charge current sent to the battery when the second indication voltage is within a sensible range, wherein the power voltage is within a broad voltage range, and the first indication voltage is fixed.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: November 20, 2018
    Assignee: Wistron Corporation
    Inventors: Ying-Tzu Chou, Chih-Nan Peng, Yan-Cheng Pan
  • Patent number: 10126337
    Abstract: A microcontroller is operable to monitor power supply levels corresponding, respectively, to a first power supply (e.g., a main power supply) and a second power supply (e.g., a battery backup power supply). In one or more modes of operation, the same brownout detector in the microcontroller alternately monitors signals corresponding, respectively, to the first and second power supply levels.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 13, 2018
    Assignee: Atmel Corporation
    Inventors: Patrice Menard, Thierry Gourbilleau, Thibault Kervaon, Régis Vix
  • Patent number: 10128666
    Abstract: A battery module including: a plurality of battery packs each having a plurality of battery banks; a first wire that connects the plurality of battery packs in parallel; and a second wire that connects battery banks of the different battery packs in parallel. A natural balancing operation may be implemented without a complicated circuit configuration.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: November 13, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyeoncheol Jeong, Woojoon Chung, Sejin Ji, Jongho Park, Woonseong Baek
  • Patent number: 10122201
    Abstract: The present disclosure discloses a charging system, a charging method and a power adapter. The system includes a battery, a first rectifier, a switch unit, a transformer, a compositing unit, a sampling unit, and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to a voltage sampling value and/or a current sampling value obtained by primary sampling of the sampling unit, such that a second alternating current outputted by the compositing unit meets a charging requirement. The second alternating current is applied to the battery.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: November 6, 2018
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jialiang Zhang, Chen Tian, Jun Zhang, Shebiao Chen, Shiming Wan, Jiada Li
  • Patent number: 10117556
    Abstract: Provided is a battery discharge control system including a voltage sensor configured to sense a voltage across a battery and a controller configured to calculate an expected voltage based on a recovery voltage of the battery and the voltage across the battery, compare the expected voltage and a predetermined final discharge voltage, and determine whether to apply power to a load having the battery as a power source.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 6, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Hoyong Jang, Seokhee Cho, Dukho Ham
  • Patent number: 10110035
    Abstract: An electric energy storage device includes two electrical terminals. The energy storage device further includes at least one first current path configured to electrically connect to the two terminals. The energy storage device further includes at least two energy storage modules configured to be connected to form a series connection of the energy storage modules. The energy storage modules include multiple storage units and a controllable multiple-voltage level converter. The converter is configured to optionally connect the one or more storage units in the first current path for the incremental adjustment of a module voltage, as at least one of a function of a control signal of a control and regulating device of the electric energy storage device.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: October 23, 2018
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventor: Stefan Butzmann
  • Patent number: 10106037
    Abstract: In a self-diagnostic processing performed by a CPU, whether a vehicle is in an idle stop state is determined based on obtained vehicle operation information and engine operation information in order to perform abnormality detection processing. When an engine has stopped in a vehicle equipped with an idle stop function, electric power is supplied to electrical components of the vehicle, which means a battery supplies currents to the electrical components. Consequently, if a current measurement result obtained by measuring a current while the vehicle is stationary and an ignition is ON indicates that the measurement value is equal to or below a prescribed current value, the CPU determines that an abnormality has occurred in a measuring system.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: October 23, 2018
    Assignees: YAZAKI CORPORATION, GS YUASA INTERNATIONAL LTD.
    Inventors: Masashi Sekizaki, Michito Enomoto, Takeyuki Shiraishi, Takeshi Itagaki
  • Patent number: 10103555
    Abstract: An apparatus for preventing battery overcharge according to the present invention comprises: a voltage division unit having one end connected to a positive tap of a battery and the other end connected to a negative tap of the battery; and a switching unit having one end connected to the positive tap and the other end connected to the negative tap, the switching unit being shorted or opened according to a voltage divided from the voltage division unit. When a voltage between the positive tap and the negative tap is larger than or equal to a first voltage, the switching unit is shorted, the battery is shorted, an overcurrent is generated, the positive tap is destroyed, and the battery is electrically separated from a charging power source. The apparatus uses only passive devices, which makes it unnecessary to add a function for preventing an overcharge to a control unit, and has a simple construction enough to be added to a sensing circuit of a battery cell.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: October 16, 2018
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Yun Nyoung Lee
  • Patent number: 10101402
    Abstract: A method for estimating battery power capability in a torque-generating system having a battery pack with battery cells includes calculating a voltage spread as a difference between an average and minimum cell voltage of the battery pack. The method also includes increasing a calibrated voltage control limit by an offset that is based on a magnitude of the voltage spread, doing so when the minimum cell voltage is less than the control limit, and recording the offset in a memory location referenced by pack operating conditions. Further, the power capability is estimated using the recorded offset when the battery pack operates under conditions that are the same as the operating conditions, and then executing a control action of the system using the estimated power capability. A torque-generating system includes the battery pack, an electric machine, and a controller programmed to execute the above-described method.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: October 16, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Patrick E. Frost, Rory B. Fraga, Patricia M. Laskowsky, Alexander K. Suttman
  • Patent number: 10084215
    Abstract: A first cell string provided in a first battery module has a larger allowable current value than a plurality of cell strings provided in second and third battery modules. The battery module is provided with a current limiting circuit that limits the charge and discharge currents of the second cell string. When the current value detected by a current sensor is zero, the switch is turned off. In this condition, when the terminal voltage value of the third cell string is different from the terminal voltage value of the second cell string, a second switch switches the connection between the second and third battery modules in order to interpose the current limiting circuit between the second and third cell strings.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: September 25, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Ryoji Yamato, Naoki Fujii, Gaku Kamitani, Midori Sunaga, Toshinari Tabata
  • Patent number: 10084214
    Abstract: A battery assembly is provided. The battery assembly includes a first module having a first plurality of cells and a first voltage measurement device. The battery module includes a sense wire, coupled to a voltage measurement input of the first voltage measurement device and resistively coupled to a terminal of the first plurality of cells. The battery assembly includes a second module having a second plurality of cells and being configured to couple to the first module with the terminal of the first plurality of cells coupling to a terminal of the second plurality of cells via a connector and with the sense wire coupling to the terminal of the second plurality of cells via the connector.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 25, 2018
    Assignee: Atieva, Inc.
    Inventor: Richard J. Biskup
  • Patent number: 10069311
    Abstract: A power storage device includes: power storage units each including at least one battery, the power storage units being connected in series; cell balance units connected in parallel to the respective power storage units via switches; and a control unit that performs control to charge the power storage units with a first constant current value, and, when the power storage unit having the highest voltage among the power storage units reaches a first potential, connect the corresponding one of the cell balance units to the power storage unit having the highest voltage, and switch the charging current to a second constant current value that is smaller than the first constant current value.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: September 4, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Naoyuki Sugeno, Kohki Watanabe, Masumi Terauchi, Shuichi Takizawa, Noritoshi Imamura, Koji Umetsu
  • Patent number: 10056764
    Abstract: Rechargeable battery systems and rechargeable battery system operational methods are described. According to one aspect, a rechargeable battery system includes a plurality of rechargeable battery cells coupled between a plurality of terminals and charge shuttling circuitry configured to couple with and shuttle electrical energy between individual ones of the rechargeable battery cells, and wherein the charge shuttling circuitry is configured to receive the electrical energy from one of the rechargeable battery cells at a first voltage and to provide the electrical energy to another of the rechargeable battery cells at a second voltage greater than the first voltage.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: August 21, 2018
    Assignee: Lithium Werks B.V.
    Inventor: Peter Nysen
  • Patent number: 10054642
    Abstract: A battery monitoring apparatus capable of reducing power consumption. At least one monitoring integrated circuit (IC) is electrically connected to a high-voltage battery formed of a plurality of cells and configured to monitor the high-voltage battery in a plurality of modes of operation. A low-voltage power supply circuit can deliver power of a lower voltage than the power of the high-voltage battery to the at least one monitoring IC. A power supply to the at least one monitoring IC is selected from a group of the high-voltage battery and the low-voltage power supply circuit depending on the mode of operation the at least one monitoring IC.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: August 21, 2018
    Assignee: DENSO CORPORATION
    Inventors: Shunichi Mizobe, Tsuneo Maebara, Ryotaro Miura, Masaya Itou
  • Patent number: 10044212
    Abstract: A battery controller and method for controlling a battery include training parameters for a battery capacity prediction model based usage of similar batteries and capacity information for the respective similar batteries. The model characterizes a capacity decay rate. Future battery capacity is predicted for a battery under control based on the battery capacity prediction model and a present value of the battery capacity. One or more operational parameters of the battery under control is controlled based on the predicted future battery capacity.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: August 7, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Takayuki Katsuki, Tetsuro Morimura
  • Patent number: 10044074
    Abstract: Provided battery systems include a plurality of battery electronic control units, each associated with a battery pack of a plurality of battery packs. Each battery electronic control unit is adapted to acquire analog current measurements of the associated battery pack and to convert the acquired analog current measurements to a digital value such that the plurality of battery electronic control units produce a plurality of digital values. The system may sum the digital values, or may process pulse-width modulated signals, analog signals and so forth. A battery system electronic control unit is adapted to receive and monitor the plurality of digital values and to determine a total battery system current value based on the received plurality of digital values.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: August 7, 2018
    Assignee: Johnson Controls Technology Company
    Inventors: Craig W. Rigby, Thomas J. Dougherty, Chih Yu Chen
  • Patent number: 10044247
    Abstract: A driving module for vehicles includes a vehicle driving motor, a case configured to accommodate the vehicle driving motor and a gear device transmitting rotary force of the vehicle driving motor to axles, a vehicle interior air conditioning compressor mounted on the case, and an integrated control module mounted on the case and including a first power conversion device to drive the vehicle driving motor and a second power conversion device to drive the vehicle interior air conditioning compressor, the first and second power conversion devices being integrated into the integrated control module, thus having a compact and lightweight structure and minimizing the number of parts.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: August 7, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Junggu Lee, Wonrak Bae, Junyoung Lim
  • Patent number: 10040363
    Abstract: The disclosed systems and methods are directed to a battery assisted charging station. A battery system comprising plurality of batteries and a battery management system software controlling the operations of the battery system, function together with a vehicle charging system that charges electric vehicles using one or both of stored power provided by a battery system, and power provided by a utility power grid. The battery system uses the power grid to charge the batteries therein.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: August 7, 2018
    Assignee: Powin Energy Corporation
    Inventors: Virgil Lee Beaston, Daniel Dee Williams, Patten Atwood Emmons
  • Patent number: 10038427
    Abstract: Exemplary embodiments are directed to power path switching between multiple charging ports of an electronic device. A device may include a charging port of a plurality of charging ports for coupling to a power supply via an over-voltage protection circuit. The device may further including a comparison unit configured to couple the charging port to the power supply based at least partially on a comparison between a voltage at an input of the over-voltage protection circuit coupled to the charging port with a voltage at the output of the over-voltage protection circuit coupled to the power supply.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: July 31, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Jongshick Ahn, Eric B Zeisel, Cheong Kun, Jennifer A Hagstrom
  • Patent number: 10033207
    Abstract: A mobile device charging station(s) for charging one or more mobile devices, including a substantially planar member having an upper end and a lower end; a channel disposed substantially at the lower end of the planar member; an electronic circuit for charging the one or more mobile devices; and one or more cables having a first end in electrical communication with the electronic circuit and a second end extending through the planar member and terminating substantially proximal to the channel for connecting with the one or more mobile devices.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 24, 2018
    Assignee: JPM NETWORKS LLC
    Inventors: Joseph Augustine Mecca, Paul Martin Mecca
  • Patent number: 10033199
    Abstract: A reconfigurable multi-battery pack system for inclusion in a hand held device for more efficiently energizing battery powered operation of both a buck DC-DC converter and a boost DC-DC converter included in the device. Also disclosed is a power management circuit that autonomously: 1. connects the batteries in parallel during battery recharging; and 2. connects at least two (2) of the batteries in series when the batteries are not being recharged and are energizing operation of the DC-DC converters.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: July 24, 2018
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: Sorin Laurentiu Negru
  • Patent number: 10027134
    Abstract: The present application relates to an active equalization method and system of a lithium iron phosphate (LFP) battery pack.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: July 17, 2018
    Assignees: Qinghai Contemporary Amperex Technology Limited, Ningde Contemporary Amperex Technology Limited
    Inventors: Jingyao Mei, Jianguo Hu, Shilin Huang
  • Patent number: 10023054
    Abstract: A power distribution system comprises a plurality of energy storage modules coupled in series. A plurality of electrically isolated power converters are each coupled across one or more of the energy storage modules. When enabled, the power converters provide a low voltage output to an output of the power distribution system. A control system controls the power converters to provide the low voltage output. The control system selectively enables the power converters to balance states of charge of the energy storage modules.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: July 17, 2018
    Assignee: Kitty Hawk Corporation
    Inventor: Geoffrey A. Long
  • Patent number: 10027136
    Abstract: According to one embodiment, a battery includes: a first wire; a second wire; a third wire; a first resistor; a first switch; a second switch; a second resistor; a voltage measurer; and a controller that calculates a second resistance value of the third wire using a first voltage of a first battery when the first switch is turned on and the second switch is turned off, a second voltage of a second battery when the first switch is turned on and the second switch is turned off, a third voltage of the second battery when the first switch is turned off and the second switch is turned off, and a first resistance value of the first resistor.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: July 17, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobukatsu Sugiyama, Ena Ishii, Tomokazu Morita