Serially Connected Batteries Or Cells Patents (Class 320/116)
  • Patent number: 10693313
    Abstract: In an embodiment, a power apparatus operating method includes receiving a mode switching signal to control an operating of a power apparatus to provide and/or receive a preconfigured load; sensing an enable route current of an enable route, and a bypass route current of a bypass route, wherein the enable route current flowing through a battery module including one or more batteries, and the bypass route current does not flowing through the battery module; and controlling driving a first and a second switches by using a negative feedback control and an open loop control, to perform a current switching between an enable mode and a bypass mode of the power apparatus, based on the mode switching signal, the enable route current and the bypass route current, wherein the enable mode uses the power apparatus and the bypass mode bypasses the power apparatus.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: June 23, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chung-Lin Tseng, Horng-Jzer Shih, Kai-Cheung Juang
  • Patent number: 10680429
    Abstract: A battery protective circuit including a resistor connected to a switch between a battery and a load through which a first current flows, a first driver to supply the first current to the switch and the resistor, a negative temperature coefficient element having resistance that varies in response to heat of the resistor, a second driver to supply a second current to the negative temperature coefficient element, a short-circuit device to be mechanically deformed by a current, a mechanical switch including a plurality of terminals connected with the battery, the terminals electrically connected with each other by deformation of the short-circuit device, a fuse connected in series between the battery and the mechanical switch, a circuit-changing switch configured to supply the second current to the short-circuit device or to block supply thereof, and a controller to control operations of the first driver, the second driver, and the circuit-changing switch.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: June 9, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Dukjung Kim
  • Patent number: 10663529
    Abstract: An illustrative battery charging device may identify a battery to be charged, and charge the identified battery using charge settings that are optimized for the identified battery. In some embodiments, the battery charging device may determine the optimized settings based on monitoring charging performance and discharge activities of the battery over time. The battery charging device may exchange data with a battery management service device, such as by exchanging battery health information, battery settings, and/or other data. The battery charging device may determine charge setting and times to charge a battery that is intended to power an unmanned aerial vehicle to complete a flight path.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 26, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Michael Bolotski, Daniel Buchmueller, Nathan Stuart Friendly, Fabian Hensel, Walker Chamberlain Robb, Joshua White Traube
  • Patent number: 10666065
    Abstract: An approach is provided that determines that power from at least one battery cell in a multi-battery cell configuration is not required to power the device based on a power requirement of the device. The approach then regulates voltages from the battery cells so that first set of the battery cells is shunted (0 v) and a second set of the battery cells is regulated with the voltage being set to one or more voltage levels to satisfy the power requirement.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 26, 2020
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: John S. Crowe, Gary D. Cudak, Jennifer J. Lee-Baron, Nathan J. Peterson, Amy L. Rose, Bryan L. Young
  • Patent number: 10658649
    Abstract: An electronic equipment chamber is disclosed. The electronic equipment chamber has an electronic equipment chamber board on which at least one electronic component among a current sensor, a relay, and a fuse is disposed, a controller located in a center of the electronic equipment chamber board, the controller electrically connected to the electronic component and configured to control the electronic component, and a plurality of busbars electrically connected to the electronic component and disposed along an outer edge of the electronic equipment chamber board, the plurality of busbars spaced apart from the controller.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: May 19, 2020
    Assignee: Tyco Electronics AMP Korea Co., Ltd.
    Inventors: Young Geun Park, Dong Ha Park
  • Patent number: 10656189
    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: October 16, 2018
    Date of Patent: May 19, 2020
    Assignee: Atmel Corporation
    Inventors: Patrice Menard, Thierry Gourbilleau, Thibault Kervaon, Régis Vix
  • Patent number: 10658852
    Abstract: A battery pack and a protection method of the battery pack are provided. The battery pack includes a battery including battery cells, a balancing unit for balancing voltages between the battery cells, a first switch on a high-current path of the battery, and a battery management unit for monitoring a voltage, a temperature, and a current of the battery, for applying a control signal for turning off the first switch, and for operating the balancing unit when the first switch is not turned off in response to the control signal.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 19, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: K. V. Sundaraaman
  • Patent number: 10651666
    Abstract: An electricity-storage system 110a is configured to be able to charge and discharge by connecting a plug to an electrical outlet 140a. Power discharged from the electricity-storage system 110a is monitored by a reverse-power monitoring device 100 and discharge from the electricity-storage system 110a is executed according to instruction from the reverse-power monitoring device 100, in order to avoid reverse power flow to an electrical grid 150.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: May 12, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shoichi Toya, Satoru Inakagata
  • Patent number: 10649034
    Abstract: A battery voltage monitoring apparatus monitoring a voltage of an assembled battery, the assembled battery including a plurality of battery cells, comprising; a first voltage sensor module that monitors voltages of a plurality of battery cells arranged at a high voltage side; and a second voltage sensor module that monitors voltages of a plurality of battery cells arranged at a low voltage side, wherein the second voltage sensor module comprises a voltage sensor that is connected to a terminal and detects a voltage of a battery cell connected to the terminal, the terminal being supplied with a power source potential of the second voltage sensor module, the voltage sensor comprises a comparator including a first terminal and a second terminal, the first terminal being supplied with a voltage according to the voltage of the battery cell, the second terminal being supplied with a reference voltage.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: May 12, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Manabu Miyamoto
  • Patent number: 10644537
    Abstract: A back-up rechargeable battery supply system comprises communication linkages and a configuration of switches to allow battery back-up power to be provided by cells within a battery unit that are in a ready mode and to by-pass batteries that are in a non-ready mode, or maintenance mode. The unique configuration of switches and communication methods enables the back-up power to be provided very quickly to avoid disruptions in power to a load. Each battery cell has a charge and discharge switch and a power switch. Both the power switch and one of the charge or discharge switches must be closed to allow the battery cell to charge or discharge respectively. The by-pass switch may be controlled by the battery system control or by the cell controller and when closed, the cell may be bypassed from discharging or charging. The battery cells may be electrochemical cells such as metal air batteries.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: May 5, 2020
    Assignee: NANTENERGY, INC.
    Inventors: Ramkumar Krishnan, Javier Eduardo Banuelos Solis
  • Patent number: 10644518
    Abstract: A battery power supply system and a battery power supply method for a main system are provided. The battery power supply system includes a power supply processor, an expansion slot module with plural slots, and plural battery units. The plural battery units are docked with the corresponding slots. Moreover, plural control switches are electrically connected between the corresponding slots and the power supply processor. A voltage value of one battery unit is defined as a fiducial voltage value. If the difference between the fiducial voltage value and the voltage value of at least one battery unit of the rest of the battery units is within a predetermined value, the control switch corresponding to the at least one battery unit is turned on. The battery unit with the fiducial voltage value and the at least one battery unit are connected with each other in parallel.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: May 5, 2020
    Assignee: FLYTECH TECHNOLOGY CO., LTD
    Inventors: Yao-Cheng Ting, Shih-Hsuan Lin
  • Patent number: 10644510
    Abstract: An energy generation system includes an inverter power control system and a plurality of energy storage devices coupled to the inverter power control system. The inverter power control system includes an input configured to receive DC power; a DC/AC inverter stage configured to receive the DC power input; an anti-islanding relay coupled to the output of the DC/AC inverter stage; and a transition relay coupled to the anti-islanding relay, where the transition relay configured to route an output of the inverter power control system between one or more onsite back-up loads and an AC grid. Each energy storage device is configured to communicate with the inverter power control system.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: May 5, 2020
    Assignee: SolarCity Corporation
    Inventors: Sandeep Narla, Andrew Russell Lutkus
  • Patent number: 10629964
    Abstract: The present invention relates to a method for operating an energy storage unit having a plurality of battery cells (1) electrically connected to one another, each battery cell comprising an over-voltage protection device and a cell protection, wherein an adjacent battery cell voltage (14) on each battery cell (1) of the energy storage unit is monitored to determine whether said battery cell voltage is larger than a predetermined cell voltage minimum value (16), wherein the energy storage unit is switched off when the battery cell voltage (14) drops below the cell voltage minimum value (16). Thereby the battery cells (1) are monitored with respect to a triggering of the respective over-voltage protection devices, wherein the energy storage unit is further operated if a battery cell voltage (14) of a battery cell (1) of the energy storage unit exceeds the cell voltage minimum value (16) and the triggering of the over-voltage protection device of this battery cell (1) is thereby detected.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: April 21, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Ramanathan Swaminathan, Frank Stimm, Joerg Christoph Wilhelm
  • Patent number: 10614146
    Abstract: A system for calculating total lifecycle costs for a building energy management system includes lifecycle costs for a grid-scale battery system. The system includes a battery lifecycle optimizer configured to provide an optimal battery configuration for a building and a building energy system controller. The building energy system controller receives optimum battery configuration information, information relating to the heat ventilation air conditioning system of the building, intrinsic thermodynamic properties of the building, energy tariff schedules and weather forecast data to forecast a monthly peak demand profile. A simulation is run using a battery model, system model along with tariff and weather information to produce an hourly building energy management plan for minimizing overall energy costs with consideration of system lifecycle costs.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: April 7, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Zhen Song, Sanjeev Srivastava, Yubo Wang
  • Patent number: 10608442
    Abstract: A cell balancing system includes sensing circuitry configured to sense a cell voltage of each of a plurality of cells of a battery. Cell balancing circuitry is configured to balance each of the plurality of cells in response to a respective cell balancing command for each of the plurality of cells. A comparison circuit configured to compare the sensed cell voltages for each of the plurality of cells to an adaptive threshold voltage. The comparison circuit generates a respective cell state for each of the plurality of cells to indicate a state of the respective cell voltage for each of the plurality of cells relative to the adaptive threshold voltage. A controller is configured to set the respective cell balancing command for each of the plurality of cells and to adjust the adaptive threshold voltage based on an evaluation of the cell states for the plurality of cells.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: March 31, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Manish Parmar, Vv Shyam Prasad, Dipankar Mitra, Mahesh Kv
  • Patent number: 10608291
    Abstract: A battery system is described. The battery system includes a power controller having sensors monitoring the state of predetermined sections of battery modules within battery packs and sends signals to a switching network to connect a bi-directional DC/DC converter to a first predetermined group of battery modules of the plurality of predetermined groups of battery modules at a first instant of time responsive to a first measurement of a first predetermined section of battery modules, and a second predetermined section of battery modules of the plurality of predetermined groups of battery modules at a second instant of time responsive to a second measurement of a second predetermined group of battery modules.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: March 31, 2020
    Assignee: Spiers New Technologies, Inc.
    Inventors: John Junger, Bryan Schultz
  • Patent number: 10601233
    Abstract: One embodiment of the present disclosure describes a battery system including a battery module with a first and second cell group connected in series; and a cell control unit communicatively coupled to a plurality of sensors, in which the cell control unit includes a first analog-to-digital converter that outputs a first cell group voltage; a second analog-to-digital converter that outputs a second cell group voltage; outputs a measured battery module voltage; and logic circuitry that determines a calculated battery module voltage based at least in part on the first cell group voltage and the second cell group voltage; and determines whether a fault is expected to be present in the cell control unit, the battery module, or both based at least in part on the measured battery module voltage and the calculated battery module voltage.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 24, 2020
    Assignee: CPS TECHNOLOGY HOLDINGS LLC
    Inventors: Charles S. Tosch, Ronald J. Dulle
  • Patent number: 10601070
    Abstract: Methods, systems and battery modules are provided, which increase the cycling lifetime of fast charging lithium ion batteries. During the formation process, the charging currents are adjusted to optimize the cell formation, possibly according to the characteristics of the formation process itself, and discharge extents are partial and optimized as well, as is the overall structure of the formation process. During operation, voltage ranges are initially set to be narrow, and are broadened upon battery deterioration to maximize the overall lifetime. Current adjustments are applied in operation as well, with respect to the deteriorating capacity of the battery. Various formation and operation strategies are disclosed, as basis for specific optimizations.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: March 24, 2020
    Assignee: StoreDot Ltd.
    Inventors: Leonid Krasovitsky, Vladimir Seleznyov, Daniel Aronov
  • Patent number: 10581124
    Abstract: A battery assembly controller controls terminal voltages of a plurality of series-connected secondary batteries to be equal. The controller includes a discharge circuit selectively reducing the terminal voltages of the secondary batteries; and a monitoring circuit directly connected to positive and negative electrodes of the secondary batteries to monitor the terminal voltages of the secondary batteries.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 3, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Junji Nakatsuka, Gorou Mori
  • Patent number: 10566821
    Abstract: The present disclosure provides an electric vehicle, a vehicle-mounted charger and a method for controlling the same. The method includes: obtaining a first total charging time and a second total charging time in a second manner, and a first total discharging time and a second total discharging time in the second manner; calculating a first total working time in the first manner and a second total working time in the second manner; obtaining a first predetermined charging time in the first manner, a second predetermined charging time in the second manner, a first predetermined discharging time in the first manner and a second predetermined discharging time in the second manner; selecting a manner according to the first and second total working time; and performing an alternate control according to the first and second predetermined charging time or according to the first and second predetermined discharging time.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: February 18, 2020
    Assignee: BYD COMPANY LIMITED
    Inventor: Xinghui Wang
  • Patent number: 10564191
    Abstract: Methodologies and systems are described herein whereby performance parameters of a power converter may be tested. In one or more embodiments, a system for testing the performance parameters comprises a multi-channel monitoring device including a first channel for monitoring a switch voltage of a power converter and a second channel for concurrently monitoring an output voltage of the power converter. The system further comprises a set of one or more processors for generating, as a function of the switch voltage and the output voltage, and displaying an inductor current waveform approximating current through an inductor of the power converter. Additionally or alternatively, other waveforms such as output current waveforms and inductor voltage waveforms, may be generated during testing of the power converter. An arbitrary wave generator may inject different signals during testing of the power converter.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 18, 2020
    Assignee: Oracle International Corporation
    Inventors: Istvan Novak, Peter J. Pupalaikis
  • Patent number: 10547089
    Abstract: A battery system may include multiple battery cells having different chemistries. To achieve certain performance goals, voltage parameters for the battery system, such as cruising voltages and maximum voltages can be adjusted. These adjustments may, for example, direct charging currents to a lithium-ion battery to increase fuel economy or may direct charging currents away from a lithium-ion battery to increase its longevity. Methods for matching batteries having different chemistries based on their open circuit voltages are also discussed.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: January 28, 2020
    Assignee: CPS Technology Holdings LLC
    Inventors: Zhenli Zhang, Zhihong H. Jin, Perry M. Wyatt
  • Patent number: 10541543
    Abstract: The disclosed charging system has multiple charging ports emanating from a central digital power transmitter to charge a plurality of battery packs. The system comprises a centralized bulk power converter to produce a first DC voltage and multiple additive power converters. One additive power converter is assigned to each charger port. The output of each charging port is transmitted in digital power format to a receiver local to each battery pack. The receiver converts the digital power to conventional analog DC power for charging the battery packs. The bulk converter provides the majority of the power needed to charge all the battery packs simultaneously, while the additive power converters adjust for the individual characteristics of each battery pack.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: January 21, 2020
    Assignee: VoltServer, Inc.
    Inventor: Stephen S. Eaves
  • Patent number: 10538175
    Abstract: The present disclosure relates to an apparatus for controlling charging of an environment-friendly vehicle. The apparatus includes a high-voltage battery SOC determining unit configured to determine a state of charge (SOC) of a high-voltage battery that is a main power source, an auxiliary battery SOC determining unit configured to determine an SOC of an auxiliary battery that assists power of the high-voltage battery, and an auxiliary battery charging control unit configured to, when receiving a request for an operation of an engine for controlling heating, perform a control such that the auxiliary battery is charged by using the high-voltage battery.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 21, 2020
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventors: Chun Hyuk Lee, Dong Jin Sohn, Yong Hoon Lee, Dong Jun Shin, Jee Wook Huh
  • Patent number: 10541542
    Abstract: A battery pack receives a charging current from a charger via a power line. The battery pack includes a battery management unit and a transmitting unit. The battery management unit is coupled to a plurality of battery cells and is operable for acquiring data associated with the battery pack. The transmitting unit is coupled to the battery management unit and is operable for transmitting the data to the charger via a power line.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 21, 2020
    Assignee: O2MICRO INC.
    Inventor: Guoxing Li
  • Patent number: 10541548
    Abstract: A battery pack includes: a battery including at least one battery cell; a power line communicator connected to a current path to detect a first data signal; and a battery management system (BMS) to receive the first data signal from the power line communicator, and to control the battery according to the first data signal.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: January 21, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Taejin Kim
  • Patent number: 10541541
    Abstract: Embodiments of the present disclosure provide an equalization circuit, a device to be charged and a charging control method. The equalization circuit includes: a first converting unit, configured to receive a direct voltage output by a first battery cell and to convert the direct voltage output by the first battery cell into a first alternating voltage; a first resonant unit, configured to receive the first alternating voltage and to convert the first alternating voltage into a second alternating voltage in a resonant manner; a first capacitive coupling unit and a second converting unit, in which the first capacitive coupling unit is configured to couple the second alternating voltage to the second converting unit in a capacitive coupling manner, and the second converting unit is configured to convert the second alternating voltage into a first charging voltage for charging a second battery cell.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: January 21, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jialiang Zhang, Shiming Wan, Chen Tian, Shebiao Chen, Jiada Li, Jun Zhang
  • Patent number: 10530165
    Abstract: Disclosed is a battery management method and corresponding apparatus to manage a battery including determining state information of a target battery, among batteries, based on quantity data of the target battery. The method and apparatus also includes determining state information of a battery, different from the target battery, among the batteries, based on the state information of the target battery and difference information between electrical quantity data of the different battery and the electrical quantity data of the target battery.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: January 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sun-Jae Lee
  • Patent number: 10530164
    Abstract: An electric storage apparatus according to one aspect of an embodiment includes a plurality of storage batteries, a virtual processing unit, and a connection controlling unit. The virtual processing unit virtually and sequentially connects in parallel two or more storage batteries, of the plurality of storage batteries, having a potential difference or potential differences within a predetermined range so as to equalize electric potentials of the two or more storage batteries. The connection controlling unit connects in parallel the two or more storage batteries in a connection order for maximizing the number of the two or more storage batteries to be connected in parallel when the virtual processing unit sequentially connects in parallel the two or more storage batteries in an order from highest electric potential to lowest one and in an order from lowest electric potential to highest one.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: January 7, 2020
    Assignee: FUJITSU TEN Limited
    Inventor: Yukio Ishikawa
  • Patent number: 10522881
    Abstract: Various embodiments of a technique to estimate and monitor a self-discharge rate for use as a measure of battery health are described herein. In some embodiments, the technique includes a system including a processor and a memory coupled with the processor. The memory is configured to provide the processor with instructions that when executed cause the processor to receive a plurality of snapshots obtained by monitoring a battery system in a quiescent state at a plurality of times. Each snapshot includes a plurality of cell state values at one of the plurality of times. The memory is further configured to provide the processor with instructions that when executed cause the processor to estimate a self-discharge indicator using at least one snapshot in the plurality of snapshots, compare the self-discharge indicator to a threshold, and recommend a remedy for the battery system in response to the self-discharge indicator exceeding the threshold.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: December 31, 2019
    Assignee: CORA AERO LLC
    Inventors: Lewis Romeo Hom, Dhruv Rathi
  • Patent number: 10523020
    Abstract: An electric storage apparatus according to one aspect of an embodiment includes a battery unit, a determination unit, a virtual processing unit, and a connection controlling unit. The battery unit includes storage batteries to be connected in parallel. The determination unit determines, when the battery unit is started up, a startup type indicating a discharge start or a charge start. The virtual processing unit generates connection orders. Each of the connection orders is obtained by virtually and sequentially connecting in parallel storage batteries, of the storage batteries, having potential differences within a predetermined range so as to equalize electric potentials of the storage batteries. The connection controlling unit selects, among from the connection orders, a connection order in which the equalized electric potential is an electric potential according to the startup type determined by the determination unit, so as to connect in parallel the storage batteries.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: December 31, 2019
    Assignee: FUJITSU TEN Limited
    Inventor: Yukio Ishikawa
  • Patent number: 10491011
    Abstract: A capacity restoration system restores a capacity of a battery pack including lithium ion secondary batteries and mounted on a vehicle. The capacity restoration system includes a capacity restoration device, a communication device, and a server. The capacity restoration device is configured to perform a restoration process to restore a capacity of the battery pack by maintaining a SOC of the battery pack to be equal to or less than a reference value. The communication device is configured to acquire restoration data. The restoration data includes: the reference value for the SOC, the reference value being used for the restoration process; and a capacity restoration ratio attained by the restoration process. The server is configured to use the restoration data to calculate the reference value used for the restoration process for a target vehicle.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: November 26, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masatoshi Uchida
  • Patent number: 10483791
    Abstract: A power device, system and method. The device may include a housing defining a first support operable to support a first battery pack, and a second support operable to support a second battery pack; a circuit selectively electrically connecting the first battery pack and the second battery pack in series, the circuit including an output terminal to provide an output voltage to a powered device, a first bypass portion operable to selectively electrically disconnect the first battery pack from the circuit, and a second bypass portion operable to selectively electrically disconnect the second battery pack from the circuit; and a boost converter electrically connected to the circuit and operable to boost a voltage at the output terminal.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: November 19, 2019
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Matthew J. Mergener, Timothy Ryan Obermann, Kevin L. Glasgow, Jeffrey M. Brozek
  • Patent number: 10481213
    Abstract: Disclosed is an overcharge detection method for detecting an overcharging of an accumulator of a battery including a set of parallel branches each including accumulators disposed in series, wherein the method includes steps of: (i) collecting the measurements of the currents flowing in the branches of the battery; (ii) identifying at least one variation in current in one branch with respect to at least one other branch as a function of the measurements of current collected; (iii) determining a level of state of charge of the branch; and (iv) detecting an overcharging of an accumulator in the branch as a function of at least the variation in current identified and of the level of state of charge determined.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 19, 2019
    Assignee: DCNS
    Inventor: Nicolas Pierre
  • Patent number: 10473723
    Abstract: A method of determining battery power capability may include: determining a circuit model for a battery, including a first resistance (r1) in series with a second resistance (r2) and a capacitance (C) in parallel; setting upper and lower limits for r1, r2 and C based on a battery temperature a battery state of charge or both; applying an EKF to determine r1, r2 and C within the set upper and lower limits; and outputting the battery power capability based on r1, r2 and C. The upper and lower limits may be adjusted based on the age of the battery.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: November 12, 2019
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Yonghua Li, Xu Wang
  • Patent number: 10461553
    Abstract: Provided is a power source device having a high efficiency. A power source device 1 includes an insulated AC-DC converter 2 which receives a voltage of an AC power source 10 and outputs a link voltage Vlink, a bidirectional DC-DC converter 3 which receives the link voltage Vlink to charge a main battery 5, an insulated DC-DC converter 4 which receives the link voltage Vlink to supply power to a load 7, an operation mode in which the power is supplied from the AC power source 10 to the main battery 5, and an operation mode in which the power is supplied from the main battery 5 to the load 7.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: October 29, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takae Shimada, Hiroyuki Shoji, Takayuki Oouchi, Fumihiro Sato, Kenji Kubo, Eigo Kishimoto
  • Patent number: 10454284
    Abstract: The present invention relates to a charger device (100) comprising: a sensor (10) which is configured to measure a differential current (DELTA_I) as a difference between a first current (I_POS) through a first battery portion (210) of a battery (200) and a second current (I_NEG) through a second battery portion (220) of the battery (200) and which is configured to provide a current difference signal (?I_meas) based on the measured differential current (DELTA_I); a compensator (20) which is configured to calculate a first current setpoint (I_SP_POS) used for the first battery portion (210) and a second current setpoint (I_SP_NEG) used for the second battery portion (220) based on the provided current difference signal (DELTA_I) and a battery current setpoint (I_SP); and a controller (30) which is configured to control charging and/or discharging of the first battery portion (210) based on the first current setpoint (I_SP_POS) and of the second battery portion (220) based on the second current setpoint (I_SP_NE
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: October 22, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Bernard Wagner
  • Patent number: 10442026
    Abstract: Embodiments of a welding power supply include an engine adapted to drive a generator to produce a first power and a energy storage device adapted to discharge energy to produce a second power. The welding power supply also includes control circuitry adapted to detect a commanded output. The control circuitry is adapted to meet the commanded output by controlling access to power from the energy storage device to produce the second power when the commanded output is below a first predetermined load level. The control circuitry is further adapted to meet the commanded output by controlling access to power from the engine and the energy storage device to produce the first power and the second power when the commanded output is above a second predetermined load level.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: October 15, 2019
    Assignee: Illinois Tool Works Inc.
    Inventors: Bruce Patrick Albrecht, Allen R. Sykes
  • Patent number: 10439190
    Abstract: A handheld power tool battery pack includes a plurality of battery cells, which have a positive cell pole at one end and a negative cell pole at an opposite end, connecting conductors which are provided for electrically connecting the battery cells, a connecting side, and a side opposite the connecting side. The battery cells have one integrated cell connector which is provided for the purpose of making one of the cell poles of the battery cell electrically connectably available at the end of the other cell pole of the battery cell, and that the connecting conductors for electrically connecting the battery cells are situated only on the connecting side.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: October 8, 2019
    Assignee: Robert Bosch Gmbh
    Inventor: Rainer Glauning
  • Patent number: 10414282
    Abstract: An electric power retention distribution cell apparatus and method of operation of the cell includes a rechargeable battery assembly, a bi-directional inverter and a switch control operatively connectable to an electric utility grid, an outside power charging supply and at least one end user wherein the cell is selectively switched between the electric utility grid and the battery assembly to supply electric power to the one or more end users. The cell is connected to the power charging supply for charging the battery assembly, and for dividing the battery assembly into groups of batteries for storage at a lower terminal output voltages of each group than the battery assembly output voltage when in use as the primary power supply. Electric power supply networks are also described for a utility hub network formed using two or more cells, and for a regional utility hub network formed using multiple utility hubs.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: September 17, 2019
    Inventor: Ashot Nazarian
  • Patent number: 10408435
    Abstract: A magnetic assembly structure comprises a first main body and a second main body. The first main body comprises at least one first buckle structure. The second main body comprises a tail terminal portion, at least one magnetic attraction unit, at least one second buckle structure and at least one releasing structure. The tail terminal portion, the second buckle structure and the releasing structure form a loop, the first buckle structure is capable of being engaged to the second buckle structure, and the first buckle structure moves in respect to the second buckle structure and the releasing structure. The first buckle structure and the magnetic attraction unit attract each other due to a magnetic attraction effect. By the loop design, merely one directional force is needed to achieve the objective of facilitating assembling and detaching, thus having results of reducing assembling cost and time consumption.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 10, 2019
    Assignee: TAIWAN OASIS TECHNOLOGY CO., LTD.
    Inventors: Wei-Long Lee, Che-Wei Yeh
  • Patent number: 10411499
    Abstract: A distributed charge controller that matches a charging and power profile of each individual battery cell within a bank of batteries with one or more strings of photovoltaic (PV) cells in order to maintain battery health and performance. The charge controller further optimizes the performance of a solar module by allowing active unshaded strings of cells to operate independently of other strings within the module that may be shaded. Strings of PV cells are selectively matched to one or more battery cells as required.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: September 10, 2019
    Inventors: David R. Hall, Seth Myer, Joe Fox
  • Patent number: 10404077
    Abstract: Provided is a battery balancing apparatus and method including determining state information of a battery unit based on battery quantity data of the battery unit, determining a balancing parameter of the battery unit based on a range comprising the state information, and controlling a balancing unit based on the balancing parameter.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: September 3, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyosun Hwang, YoungJae Kim
  • Patent number: 10391870
    Abstract: A power electronics system for charging at least one electrically operated vehicle, wherein the power electronics system has at least two modules each having at least one terminal pair with DC output, at least one rectifier, at least one AC input, at least one DC link and a number of switching elements the switching elements are arranged at and/or between the DC outputs of the at least two modules in such a way that, between the at least two modules, at least one series and one parallel circuit configuration can be selectively dynamically set by suitable switching states of the switching elements.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 27, 2019
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Stefan Götz, Volker Reber
  • Patent number: 10396569
    Abstract: The present invention relates to a battery cell balancing system and method using LC resonance. The present invention comprises: a drive unit including one or more battery cells connected in series, a resonance module for performing a resonant operation, and a switch unit provided so as to allow electric charges stored in the resonance module to be transferred to each of the one or more battery cells; and a control unit for measuring a resonance period of the resonance module according to a voltage state of each of the one or more battery cells, and transferring the electric charges charged in the resonance module to each of the one or more battery cells by controlling an on/off operation of the switch unit according to the measured resonance period.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: August 27, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Chang Hyun Sung, Sang Hoon Lee, Ho Byung Yoon
  • Patent number: 10389113
    Abstract: A hybrid power plant is characterized by a substantially constant load on generators regardless of momentary swings in power load. Short changes in power load are accommodated by DC components such as capacitors, batteries, resistors, or a combination thereof. Resistors are used to consume power when loads in the power plant are generating excess power. Capacitors are used to store and deliver power when the loads in the power plant demand additional power. Reducing rapid changes in power load as seen by the generators allows the generators to operate at higher efficiencies and with reduced emissions. Additionally, power plants employing combinations of generators, loads, and energy storage devices have increased dynamic performance.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: August 20, 2019
    Assignee: Transocean Sedco Forex Ventures Limited
    Inventor: Edward P. Bourgeau
  • Patent number: 10379165
    Abstract: A battery characteristics learning apparatus is provided for calculating learning values of circuit constants of an equivalent circuit of a rechargeable battery. The apparatus includes: (1) means for acquiring values of terminal voltage of the battery sensed by voltage-sensing means and values of current of the battery sensed by current-sensing means and storing the acquired values in time series; (2) means for determining, based on the acquired values of the current, whether there has occurred a predetermined change in the current; and (3) means for calculating, when it is determined that the predetermined change has occurred, the learning values of the circuit constants based on those values of the terminal voltage and the current which are acquired at sampling time points or during sampling periods, each of the sampling time points and the sampling periods being set according to a corresponding one of time constants defined by the circuit constants.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 13, 2019
    Assignee: DENSO CORPORATION
    Inventors: Yoshikazu Kusano, Hisashi Umemoto, Naomi Awano, Manabu Yamada
  • Patent number: 10371735
    Abstract: A first voltage sensor measures a primary voltage between a first terminal of a tested device and electrical ground when a first switch and a second switch are in various on states or off states. In a test state either the first switch or the second switch is in an on state and in reference state both the first switch and the second switch are in on states. An observed leakage resistance is estimated based on the measured primary and secondary voltages of the test state. A reference leakage resistance is based on the measured primary and secondary voltages of the reference state. A test circuit has failed if the observed leakage resistance differs from the reference leakage resistance by more than a threshold amount.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: August 6, 2019
    Assignee: DEERE & COMPANY
    Inventors: Olsen A. Rodrigues, Neal D. Clements, Kent D. Wanner
  • Patent number: 10361575
    Abstract: A power storage apparatus includes a plurality of power storage modules connected in series and a control apparatus that controls each power storage module. The power storage module includes a battery section, a controller, a communication unit, a first insulator that insulates the controller from the communication unit, and a second insulator having a withstand voltage higher than a withstand voltage of the first insulator. The second insulator is provided between the communication unit of each power storage module and the control apparatus.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 23, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Naoyuki Sugeno, Koji Umetsu, Noritoshi Imamura, Hiroaki Ono, Kazumi Sato, Atsushi Ozawa
  • Patent number: 10347883
    Abstract: A battery-affixing frame member includes a body plate section and duct-forming members. The duct-forming members are affixed to one surface side of the body plate section and are combined with the body plate section to form gas discharge ducts. The gas discharge ducts are used to discharge gas discharged from the inside of battery modules. The battery-affixing frame member is used to form a battery-affixing member for integrally affixing the battery modules together, the battery modules being arranged on the other surface side of the body plate section.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: July 9, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroshi Takasaki, Tomoaki Aoki