With Discharge Of Cells Or Batteries Patents (Class 320/118)
  • Patent number: 10312698
    Abstract: A charger device comprises a sensor which is configured to measure a differential current as a difference between a first current through a first battery portion of a battery and a second current through a second battery portion of the battery. The sensor is configured to provide a current difference signal based on the measured differential current. The charger device further comprises a compensator configured to calculate a first current setpoint used for the first battery portion and a second current setpoint used for the second battery portion based on the current difference signal and a battery current setpoint. The charger device also comprises a controller configured to control charging and/or discharging of the first battery portion based on the first current setpoint and of the second battery portion based on the second current setpoint.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 4, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Bernhard Wagner
  • Patent number: 10305301
    Abstract: A battery and an electronic device are provided. The battery includes a battery cell, including at least one anode of the battery cell and at least one cathode of the battery cell. The battery also includes a voltage detection circuit, wherein the voltage detection circuit detects a voltage of the battery cell. Further, the battery includes a protection circuit, wherein the protection circuit protects the battery cell based on the voltage of the battery cell detected by the voltage detection circuit.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 28, 2019
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventors: Baoning Huang, Bingcai Luo
  • Patent number: 10300806
    Abstract: A vehicle has a control system configured to perform, and a method for controlling a battery in a vehicle includes, the steps of modifying a state of charge of at least some battery cells in the battery, based on: a vehicle idle state, and the battery having at least a predetermined decay rate. The SOC of the at least some battery cells is modified such that the battery has less than the predetermined decay rate after the SOC is modified.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: May 28, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Chi Paik, Satish B Chikkannanavar, Szushen Ho, Edward Vann Decker
  • Patent number: 10298027
    Abstract: The method is disclosed of controlling a switch circuit which includes a first switching unit configured to switch between energy accumulation and energy release in a coil, and second switching units configured to connect or disconnect a plurality of corresponding storage batteries with the coil. The method comprises a first step of performing an operation to switch on the first switching unit and to switch off the second switching units; and a second step of performing an operation to switch off the first switching unit and to switch on only one of the second switching units.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: May 21, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masami Takai, Akira Nakamura
  • Patent number: 10298026
    Abstract: An apparatus for model predictive control (“MPC”) is disclosed. A method and system also perform the functions of the apparatus. The apparatus includes a measurement module that receives battery status information from one or more sensors receiving information from a battery cell, and a Kalman filter module that uses a Kalman filter and the battery status information to provide a state estimate vector. The apparatus includes a battery model module that inputs the state estimate vector and battery status information into a battery model and calculates a battery model output, the battery model representing the battery cell, and an MPC optimization module that inputs one or more battery model outputs and an error signal in a model predictive control algorithm to calculate an optimal response. The optimal response includes a modification of the error signal.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 21, 2019
    Assignee: Utah State University
    Inventors: Michael Scott Trimboli, Gregory L. Plett, Regan A. Zane, Kandler Smith, Dragan Maksimovic, Michael Evzelman, Daniel Costinett, Richard Dyche Anderson
  • Patent number: 10291037
    Abstract: An electrical energy storage device includes a plurality of energy cell slots for receiving energy cells; and a controller; wherein the controller is arranged to estimate a characteristic of a cell in each slot; and wherein the controller is arranged to apply charge and discharge currents to each cell slot dependent upon at least one estimated characteristic currently associated with that slot. The controller may be a single controller that controls all slots or it may be implemented as multiple controllers each controlling more than one cell slot or a controller for each slot. The characteristic may be one or more of: a power capability, a storage capacity, a cell impedance, an energy cell type and an energy cell chemistry.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: May 14, 2019
    Assignee: OXFORD UNIVERSITY INNOVATION LIMITED
    Inventors: Christoph Birkl, Damien Frost, Robert Richardson, Adrien Bizeray, David Howey
  • Patent number: 10283973
    Abstract: A multi-cell battery pack charging system adjusts each battery cell's charging current to synchronize the completion of charge. The battery pack is charged as a whole, and need only be charged once, and without requiring charge shuttling, resistive charge balancing or inductive charge dumping. Charging current to each battery cell is based on voltage matching of the battery cells being charged, lower voltage battery cells being given more charge current until there is a voltage match to the other series connected battery cells. Additional charge may be given to higher capacity cells of the battery pack during the voltage matching and charging process.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: May 7, 2019
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventor: Keith Curtis
  • Patent number: 10263436
    Abstract: An electrical energy storage unit and control system, and applications thereof. In an embodiment, the electrical energy storage unit includes a battery system controller and battery packs. Each battery pack has battery cells, a battery pack controller that monitors the cells, a battery pack cell balancer that adjusts the amount of energy stored in the cells, and a battery pack charger. The battery pack controller operates the battery pack cell balancer and the battery pack charger to control the state-of-charge of the cells. In an embodiment, the cells are lithium ion battery cells.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: April 16, 2019
    Assignee: Powin Energy Corporation
    Inventors: Virgil Lee Beaston, Yunhua Gao
  • Patent number: 10236542
    Abstract: A method for the switching of a number of battery cells in a battery which is configured as an electrochemical storage device, wherein each of the battery cells is electrically connected to the battery in accordance with a corresponding first probability P1i, and is electrically disconnected from the battery in accordance with a corresponding second probability P2i, and wherein the battery cells are mutually connectable in series. According to the method, a performance factor Gi is calculated for each battery cell as a sum of a function, which, specifically, is linearly dependent upon a state of charge LZi of the corresponding battery cell, and a second function which, specifically, is linearly dependent upon a product of a current value of a current which flows in the corresponding battery cell when the corresponding battery cell is electrically connected to the battery and the internal resistance of the corresponding battery cell.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: March 19, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Philipp Hillenbrand, Philipp Hartmann
  • Patent number: 10218039
    Abstract: Provided is a method and apparatus for detecting a state of a safety plug. The apparatus includes a safety plug configured to switch a connection between battery modules. The apparatus also includes a voltage output unit configured to apply a test voltage to distribution elements operatively connected to the safety plug, and output a voltage varying based on a state of the safety plug.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: February 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jinyong Jeon
  • Patent number: 10218197
    Abstract: Methods and apparatuses are provided for an electronic device. A connection of the electronic device with a charging device is detected. A state of the electronic device is determined. One of a first charging circuit and a second charging circuit is selected based on the state of the electronic device.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee Tae Kim, Ku Chul Jung
  • Patent number: 10202801
    Abstract: A control system is disclosed that includes a room controller transmitting signals to both a shade control network and a light control network, directing that motorized roller shades and dimmable lights be set to desired intensity levels. The control system further includes an intelligent hub that provides a trickle-charge re-charge current via power-over-Ethernet cables to batteries associated with each of the motorized roller shades for re-charging the batteries, thereby eliminating power supplies being installed within walls. The intelligent hub provides for communication with the room controller based on streaming protocol and with the shade control network based on event-based protocol. A computer running user-interface software can be connected to the system to facilitate programming.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: February 12, 2019
    Assignee: Crestron Electronics, Inc.
    Inventor: George Feldstein
  • Patent number: 10193194
    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: February 22, 2016
    Date of Patent: January 29, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Junji Nakatsuka, Gorou Mori
  • Patent number: 10164440
    Abstract: A method of balancing battery power can include: determining batteries to be balanced and directions of balance currents according to charge and discharge states and power states of the batteries, where each of the power states includes a state of charge, a remaining capacity, and a capacity to be charged; determining a reference of the balance current based on controlling temperatures of the batteries to be balanced to be lower than a temperature threshold when the SOCs of the batteries to be balanced are lower than a predetermined threshold; and balancing power of the batteries to be balanced according to the directions of the balance currents and the reference.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: December 25, 2018
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventors: Hejinsheng Cao, Zhiyuan Shen
  • Patent number: 10164442
    Abstract: A battery monitoring device monitoring a battery unit connecting battery blocks, the battery unit being configured by each of the battery blocks connecting battery cells, includes: a voltage detection circuit connected to each of the plurality of battery cells via a voltage detection line; a first equalization circuit as a circuit provided with at least a first switching element, the first equalization circuit being disposed for each of the battery cells and connected to the corresponding battery cell; a resistor element disposed on the voltage detection line; a second equalization circuit as a circuit provided with at least a second switching element, the second equalization circuit being disposed for each of the battery blocks and connected to the corresponding battery block; and a controller configured to control driving of the switching elements. The second equalization circuit is connected further on the battery block side than the resistor element.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: December 25, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Hiromasa Tanaka, Takahiro Okada
  • Patent number: 10150460
    Abstract: A method for determining the charge in a battery which comprises providing a main battery and a auxiliary battery. The method then comprises connecting the main battery to an electrical load; measuring I1, the current drawn from the main battery while it is connected to the electrical load; connecting the auxiliary battery in parallel with the main battery and the electrical load; measuring I2, the current drawn from the main battery while it is connected to the electrical load and the auxiliary battery; and estimating the state of charge in the auxiliary battery based upon at least the difference between I1 and I2.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: December 11, 2018
    Assignee: Jaguar Land Rover Limited
    Inventors: Krzysztof Slosarczyk, Fernando Lages, Kevin Cockings, Stephen Pickering, Jakub Mikos
  • Patent number: 10148223
    Abstract: A Capacitor based Automobile Battery with backup LiFePo charging system and charging circuit is disclosed. This invention improves on existing energy start modules (ESM) in that it is designed as a full standalone replacement unit. This invention has a built in LiFePo battery, with charging circuit, that keeps capacitors charged at all times. The invention uses a novel design of activated carbon or graphene capacitors. There are no heavy lead plates or high levels of toxic acid that is used in AGM (absorbent glass mat}/Lead acid batteries. The invention is lightweight compared with standard lead or lithium cell automobile batteries. This invention holds energy longer than ESM's. The LiFePo battery is safer than standard LiFePo batteries.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: December 4, 2018
    Inventor: Nicholas Charles Herbert
  • Patent number: 10135267
    Abstract: Provided is a secondary battery system capable of suppressing degradation of a battery capacity. When it is determined that a battery pack is brought into a non-use state, a battery state detection unit in a battery controller compares an SOC of the battery pack calculated by a battery state operation unit and a standard SOC. When the SOC of the battery pack is higher than the standard SOC, the battery state detection unit in the battery controller calculates a capacity value in which the SOC of the battery pack becomes lower than the standard SOC, from a difference of the SOC of the battery pack and the standard SOC, and transmits the calculated capacity value to a cell controller. The cell controller discharges the battery pack, on the basis of the capacity value transmitted from the battery state detection unit.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: November 20, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Hironori Sasaki
  • Patent number: 10135243
    Abstract: In management device (10) for managing power storage device (20) in which a plurality of power storage blocks (B1 to B3) in which a plurality of series circuits of fuses and power storage cells is connected in parallel is connected in series, equalization controller 15 performs, when a voltage difference among the power storage blocks exceeds a set voltage difference, a control for equalizing power storage blocks (B1 to B3). Fuse blowout determination unit 18 determines, based on a frequency of equalization performed by equalization controller 15, whether one of the fuses is blown.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 20, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasumasa Isshiki, Mutsuhiko Takeda, Noriharu Kobayashi, Jun Kikuchi
  • Patent number: 10090683
    Abstract: The invention relates to a battery management system for controlling an energy storage assembly, in particular for controlling the charging or discharging process of an energy storage device. The invention further relates to an energy storage assembly having a plurality of storage modules connected electrically in series, which energy storage assembly is controlled by an aforementioned battery management system. The invention further relates to a method for charging or discharging an aforementioned energy storage assembly.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: October 2, 2018
    Assignee: H-Tech AG
    Inventor: Samuel Canadi
  • Patent number: 10088529
    Abstract: An apparatus for estimating state of a hybrid secondary battery including a first secondary battery and a second secondary battery having different electrochemical characteristics from each other and being connected in parallel with each other, is provided.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: October 2, 2018
    Assignee: LG CHEM, LTD.
    Inventor: Won-Tae Joe
  • Patent number: 10090688
    Abstract: Systems and methods for overcurrent protection in a battery charger are provided. For example, a method for overcurrent protection may include controlling a switching regulator to direct electrical current between the switching regulator and a battery port; sensing a voltage drop that is related to the electrical current passing between the switching regulator and the battery port; applying a first ramp voltage to the sensed voltage drop generating a modified sensed voltage drop; comparing the modified sensed voltage drop against at least one reference voltage; and when the modified sensed voltage drop exceeds the at least one reference voltage, changing operation of the switching regulator to protect the battery charger from an overcurrent state.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: October 2, 2018
    Assignee: INTERSIL AMERICAS LLC
    Inventors: Michael Jason Houston, John Stuart Kleine, Lei Zhao, Jia Wei
  • Patent number: 10084211
    Abstract: To be small-sized/light in weight, and to easily cope with the variation of an inter-electrode pitch of battery cells. A flexible printed circuit with bus bars of one embodiment includes a flexible printed wiring board having a flexible insulating base material and a plurality of wiring patterns provided on one main surface of the flexible insulating base material and provided with land parts for bus bar connection at one end, and a plurality of bus bars and fixed to the land parts for the bus bar connection with an adhesive. The plurality of bus bars and are electrically connected to the respectively corresponding land parts for the bus bar connection in block by a plating layer formed on the bus bar and the land part for the bus bar connection.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: September 25, 2018
    Assignee: NIPPON MEKTRON, LTD.
    Inventors: Hiroshi Nomoto, Koichiro Yoshizawa
  • Patent number: 10063072
    Abstract: A battery module includes a lithium ion secondary battery and a control circuit. The control circuit includes a measurement unit which measures voltage, current, and the time of charge/discharge of the lithium ion secondary battery; an operation unit which calculates a capacity based on the voltage, the current, and the time and calculates a differential value dQ/dV by differentiating the capacity with a voltage; a threshold voltage setting unit which specifies a peak of a low capacity side of the differential value dQ/dV generated on the basis of a stage structure of graphite and sets a voltage at the peak to a threshold voltage; a cutoff voltage setting unit which sets a discharge cutoff voltage of the lithium ion secondary battery on the basis of the threshold voltage; and a charge/discharge control unit which controls charge/discharge of the lithium ion secondary battery on the basis of the discharge cutoff voltage.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: August 28, 2018
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Akihide Tanaka, Yohshin Yagi
  • Patent number: 10056778
    Abstract: A method and a device for limiting the current in a temperature-dependent manner of an energy storage device for electrical energy adjusts a maximum permissible charging and/or discharging current of the energy storage device in dependence upon a temperature of the energy storage device, wherein the following steps are performed: determining multiple temperature values of the energy storage device that follow one another chronologically during a prevailing time interval; determining a prevailing mean temperature value of the energy storage device from the determined temperature values of the energy storage device during the prevailing time interval; comparing the determined prevailing mean value with a predetermined desired temperature value; and, if the determined prevailing mean value is greater than the desired temperature value, limiting the maximum permissible charging and/or discharging current of the energy storage device.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: August 21, 2018
    Assignee: MAN TRUCK & BUS AG
    Inventors: Sebastian Kratzer, Susanne Büschel, Bernd Müller
  • Patent number: 10056654
    Abstract: Disclosed are an electrochemical energy store and a method for connecting cells of an electrochemical energy store. According to the invention, the following steps are carried out: determination of a first set-point for an output voltage of the energy store; determination of a first probability (Pon) for connecting a first cell, the first probability (Pon) pre-determining the connection of the first cell to the electrochemical energy store; definition of a first condition limit value and a second condition limit value for all cells of the electrochemical energy store; calculation of a first condition value for the first cell, and independently of the first probability (Pon), non-connection of the first cell to the electrochemical energy store at a first time, if the condition value lies below the first condition limit value.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: August 21, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Butzmann, Philipp Hillenbrand
  • Patent number: 10050437
    Abstract: A power supply apparatus is provided that has a plurality of secondary batteries connected in series, outputs a composite voltage of all of the secondary batteries, and outputs an output of a part of the secondary batteries as a partial voltage. The power supply apparatus includes a detecting unit that detects states of the secondary batteries, a changing unit that changes an order of series connection of the plurality of secondary batteries based on a detection result of the detecting unit in such a manner that the partial voltage is outputted from a secondary battery that is in a relatively good state.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 14, 2018
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventor: Shinichi Nomoto
  • Patent number: 10044210
    Abstract: Some embodiments of the present invention provide a system that adaptively charges a battery, wherein the battery is a lithium-ion battery which includes a transport-limiting electrode governed by diffusion, an electrolyte separator and a non-transport-limiting electrode. During operation, the system determines a lithium surface concentration at an interface between the transport-limiting electrode and the electrolyte separator based on a diffusion time for lithium in the transport-limiting electrode. Next, the system calculates a charging current or a charging voltage for the battery based on the determined lithium surface concentration. Finally, the system applies the charging current or the charging voltage to the battery.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: August 7, 2018
    Assignee: Apple Inc.
    Inventors: Thomas C. Greening, P. Jeffrey Ungar, William C. Athas
  • Patent number: 10044199
    Abstract: An electric storage system includes plural electric storage elements, a voltage detection circuit, a discharging circuit, and a controller. The controller is configured to: (a) control an operation of the discharging circuit on the basis of the voltage values detected by the voltage detecting circuit, (b) determine a first reference voltage value indicating a lowest voltage value from the voltage values of the plurality of electric storage elements, (c) discharge the electric storage element indicating the voltage value of which a voltage difference from the first reference voltage value is greater than a first threshold value, and (d) set the first threshold value to a smaller value as the first reference voltage value becomes lower.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: August 7, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junichi Matsumoto, Takashi Ogura
  • Patent number: 10038224
    Abstract: A plurality of required DC voltages are outputted. A power supply device includes: a first switch circuit corresponding to the plurality of battery devices, and that includes a switch for connecting a negative pole terminal, by which negative pole terminals of the battery devices are connected, and a first switch for connecting a positive pole terminal, by which positive pole terminals of the battery devices are connected, and a switch for bypassing, by which the battery devices are bypassed; and a second switch circuit corresponding to the plurality of battery devices, and that includes a second switch for connecting a positive pole terminal, by which positive pole terminals of the battery devices are connected, and a switch for connecting, by which the negative pole terminals of the battery devices are connected to a positive pole terminal of the other battery device.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 31, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Tan, Tatsuya Kitamura, Takahiko Yamamuro
  • Patent number: 10033212
    Abstract: Embodiments of the present invention are directed to improved battery packaging designs. The battery pack design may include a battery cell, a plurality of transistors, and a controller. The transistors may be coupled to the terminals of the battery cell in an H-bridge configuration. The controller may control the transistors to bypass the battery cell based on the current flowing between the output terminals of the battery pack. In such a manner, the controller may prevent damage to the battery cell and improve the overall safety of the battery pack in hazardous conditions. Moreover, the design may allow for more efficient charging/discharging of the cells that are most ready to accept/supply current.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: July 24, 2018
    Assignee: Analog Devices, Inc.
    Inventors: James C. Camp, Thomas M. MacLeod
  • Patent number: 10026562
    Abstract: An electrochemical storage device including a plurality of electrochemical cells connected electrically in series. Each cell includes an anode electrode, a cathode electrode and an aqueous electrolyte. The charge storage capacity of the anode electrode is less than the charge storage capacity of the cathode.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: July 17, 2018
    Assignee: AQUION ENERGY INC.
    Inventor: Jay Whitacre
  • Patent number: 10027138
    Abstract: A charger of the present invention includes a charging circuit that allows a secondary battery to be charged, a state-of-charge detection circuit that detects a state of charge of the secondary battery, a pictogram display unit that displays the state of charge of the secondary battery, and a control device that controls the charging circuit and the pictogram display unit on the basis of the state of charge of the secondary battery. The control device determines a kind of electronic apparatus available by the secondary battery in accordance with the state of charge of the secondary battery, and then displays the kind of electronic apparatus available on the pictogram display unit.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: July 17, 2018
    Assignee: FDK CORPORATION
    Inventors: Yasunari Mizoguchi, Hirohito Teraoka, Kunihisa Sekiguchi, Katsuki Tsuchiya, Kevin Foster
  • Patent number: 10020662
    Abstract: A battery system includes a plurality of electronic storage modules serially connected together wherein the electronic storage modules include a battery block group including a plurality of battery cells, and a different magnetic core connected to each battery block group.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 10, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshihiro Komatsu, Hidekazu Kikuchi, Koji Umetsu
  • Patent number: 10011184
    Abstract: A power supply system for a vehicle, which executes the following control, is provided. When a connector coupled to an external power supply is connected to the vehicle, a CHR is set to an on state. When a voltage is lower than a threshold, B2 charging process is executed. When the voltage is higher than the threshold and an SOC1 of a first battery is lower than a threshold, a charging device is stopped and both a first SMR and a second SMR are set to an on state, and B1 charging process is executed. When the SOC1 is higher than or equal to the threshold, the charging device is stopped and both the first SMR and the second SMR are set to an off state.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: July 3, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Noritake Mitsutani
  • Patent number: 10014701
    Abstract: A storage battery housing device is provided that comprises a casing that includes a shelf on which a storage battery pack is placed, and a connector that is provided at the rear of the shelf and has the storage battery pack detachably and electrically connected thereto. The storage battery housing device also includes a power reception plug that is connected to an external power source and receives power from the external power source. The storage housing device further includes a charging control circuit that uses the power received by the power reception plug to charge, via the connector, the storage battery pack connected to the connector.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: July 3, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Shoichi Toya
  • Patent number: 10003202
    Abstract: A device for balancing load of a storage device including plural elements connected in series. The device includes: a DC/AC converter including an inverter and a series resonant circuit connected to the output of the inverter; plural AC/DC converters, each including an input and an output that is connected to one of the respective storage elements and selectively supplies power to the output thereof; a transformer, the main winding of which is connected to the series resonant circuit and the secondary winding of which has outputs connected to an input of a respective AC/DC converter; and a control circuit configured to control the DC/AC converter at the current source when a number of outputs supplied with power is no higher than a threshold and moreover configured to control the DC/AC converter at a constant power when the number of outputs supplied with power is greater than the threshold.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: June 19, 2018
    Assignees: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, RENAULT s.a.s.
    Inventors: Laurent Garnier, Daniel Chatroux, Marc Lucea, Pierre-Emmanuel Ory
  • Patent number: 9997931
    Abstract: A device for balancing charge of an electric power storage device including: a plurality of electrical storage elements connected in series including at least two current limiting DC/DC converters each including: an input configured to be connected to terminals of a respective storage element; an output configured to be connected to an electrical network having a voltage controlled at a lower level than the voltage at the terminals of the storage device; a transformation law of following type: Vout=K1*Ve?f(I) for I<=1 lim, in which Vout is potential difference at the output, K1 is a constant, Ve is potential difference at the input, f(I) is an affine function of current I delivered at the output, and 1 lim is current limitation of the converter.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: June 12, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Sylvain Mercier, Daniel Chatroux, Matthieu Desbois-Renaudin, Laurent Garnier
  • Patent number: 9991702
    Abstract: A battery system including a battery unit including a plurality of battery cells, and a control device including a power supply boot-up unit. The power supply boot-up unit is configured to receive a voltage from the plurality of battery cells, and supply a control signal in response to the voltage supplied by the plurality of battery cells.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: June 5, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Eiji Kumagai
  • Patent number: 9991564
    Abstract: An electrochemical energy store with an anode, which is electrically connected to an anode space in which an anode material with a first fill level is arranged, and a cathode, which is electrically connected to a cathode space in which a cathode material with a second fill level is arranged, and an ion-conducting separator, which separates the anode space from the cathode space. The ion-conducting separator has a top region and a base region, wherein at least one conductivity section is provided in the top region of the ion-conducting separator, which conductivity section has greater electrical conductivity during correct operation of the electrochemical energy store than an electrically insulating insulation section in the base region, wherein at least one state of charge of the electrochemical energy store exists in which the anode material makes contact with the conductivity section in the anode space.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: June 5, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Kühne, Thomas Soller
  • Patent number: 9985444
    Abstract: A method for equalizing states of electric storage devices, which are connected in series, of an electric storage device assembly, includes preparing discharging time period data including discharging time periods associated with sequential numbers, determining whether a voltage of each electric storage device has reached a reference voltage during charging or discharging of the electric storage device assembly, and discharging the electric storage devices, using a discharging circuit, for respective discharging time periods associated with the sequential numbers, the sequential numbers being assigned to the electric storage devices according to a sequence of the electric storage devices determined based on time points at which the voltages of the electric storage devices have reached the reference voltage.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 29, 2018
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventor: Takeyuki Shiraishi
  • Patent number: 9960610
    Abstract: A flying capacitor type voltage detecting device which uses a capacitor to detect a voltage of each battery stack of a battery pack which includes a plurality of battery stacks each of which includes a plurality of battery cells connected in series, includes: a detecting unit that detects a voltage between both ends of the capacitor, as the voltage of each battery stack; and a branch line that is a single line which is branched from a connection line connecting the battery stacks and the detecting unit and connected to the capacitor and where a current during charging of the capacitor and a current during discharging of the capacitor flow in opposite directions.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: May 1, 2018
    Assignee: FUJITSU TEN LIMITED
    Inventors: Sho Tamura, Hiroyuki Fuji
  • Patent number: 9956889
    Abstract: The present invention relates to a battery discharging apparatus and a method thereof of a battery management system and an exemplary embodiment of the present invention provides a battery discharging apparatus, including: a battery module including a plurality of battery cells; a discharging element which is connected to the battery cells through switches to discharge a voltage of the battery cells; a detecting unit which detects an abnormal state of a vehicle; and a control unit which is connected to the battery module to monitor a charged/discharged status of the battery cells of the battery module and controls the switches to balance the battery cells, in which when the control unit receives a vehicle abnormal state signal from the detecting unit, the control unit controls the switches to be turned on/off at a predetermined duty ratio to discharge the battery cell.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: May 1, 2018
    Assignee: Hyundai Autron Co., Ltd.
    Inventor: Jae-Seong Park
  • Patent number: 9954378
    Abstract: A power storage system comprises the following: a battery unit in which a plurality of battery cells are connected; an acquisition unit for continuously acquiring, while the battery unit is discharging, (V) which represents the extent of the discharge from the battery unit and the temperature (T) of the battery unit when the degree of discharge is (V); a balancing unit for executing cell balancing by which a difference in amount of charging between battery cells is reduced; and a balancing control unit for controlling the balancing unit so that when a reference state is detected based on (V) and (T), cell balancing is not executed, in accordance with a result of the detected reference state.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: April 24, 2018
    Assignee: NEC Corporation
    Inventors: Kenji Kobayashi, Yuan Luo, Junichi Miyamoto, Shingo Takahashi, Nobuhide Yoshida
  • Patent number: 9944188
    Abstract: An on-board electrical system for a vehicle comprising: a first energy store; a second energy store; a DC/DC converter bidirectionally transferring energy between the first energy store and the second energy store; and two switching devices for coupling a first terminal of the second energy store to a first terminal of the first energy store via a first node, a second node, and a third node.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: April 17, 2018
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Dirk Reichow, Peter Voelkl, Michael Scheurer
  • Patent number: 9948116
    Abstract: A power storage system includes a power storage device and a controller. The power storage device includes a plurality of power storage stacks connected in series. The controller controls a discharge processing based on voltage values of power storage elements in each power storage stack. The controller determines an abnormal state according to a voltage fluctuation after the voltage values are made uniform. The controller performs a first processing when the following conditions i) and ii) are satisfied and performs a second processing when the following conditions i) and iii) are satisfied. The condition i) is that the power storage elements included in the plurality of power storage stacks are divided into a plurality of groups, each group consists of the power storage elements included in a same power storage stack. The condition ii) is that the voltage values of the power storage elements are different in each group.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 17, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junichi Matsumoto, Takashi Ogura
  • Patent number: 9933489
    Abstract: A battery monitoring apparatus includes wire sections each connected to a node of corresponding adjacent two of the unit cells of a battery pack at one end thereof, and branched into a first branch section and a second branch section at another end thereof. Each of the first and second branch sections is constituted of a positive part connected to a positive electrode of the corresponding unit cell and a negative part connected to a negative electrode of the corresponding unit cell. The battery monitoring apparatus includes an equalizing switch provided between each of the first wire pairs, and a voltage detector to detect a voltage between each first wire pair, and an equalizing section which performs an equalizing process to equalize a terminal voltage of each unit cell by turning on the corresponding equalizing switch depending on a result of voltage detection by the voltage detector.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 3, 2018
    Assignee: DENSO CORPORATION
    Inventors: Junichi Iino, Tomomichi Mizoguchi, Ryotaro Miura
  • Patent number: 9933491
    Abstract: An electric storage system includes electric storage blocks and a controller determining the state of each of the electric storage blocks. The plurality of electric storage blocks are connected in series, and each of the electric storage blocks has a plurality of electric storage elements connected in parallel. Each of the electric storage elements has a current breaker breaking a current path within the electric storage element. The controller acquires at least one parameter of an internal resistance and a full charge capacity of each of the electric storage blocks, and uses a change rate between the acquired parameter and a reference value to specify the number of current breakers in a broken state (the number of breaks) in each of the electric storage blocks. The reference value refers to the value of the parameter in the electric storage block not including the current breaker in the broken state.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: April 3, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenji Takahashi, Yuji Nishi, Hiroyuki Kaiya, Kenji Kimura
  • Patent number: 9935477
    Abstract: In a charge/discharge control method of a lithium ion battery having a negative electrode active material and connected to a charge/discharge control device, battery information regarding a charge/discharge state of the lithium ion battery is acquired by the charge/discharge control device, a degradation state of the lithium ion battery is determined on the basis of the battery information, by the charge/discharge control device, and a voltage range for charge/discharge of the lithium ion battery is changed on the basis of a determination result of the degradation state, by the charge/discharge control device.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: April 3, 2018
    Assignee: HITACHI, LTD.
    Inventors: Chieko Araki, Hirofumi Takahashi, Masahiro Yonemoto
  • Patent number: 9921028
    Abstract: A method, apparatus and system for networking accessories to a firearm or weapon wherein the accessories are conductively powered from the rail and data is transferred between the accessories and the rail via conductive coupling. In one embodiment, a weapon is provided, the weapon having: an upper receiver; a lower receiver; a powered accessory mounted to a rail of the upper receiver; and an apparatus for conductively networking a microcontroller of the powered accessory to a microcontroller of the upper receiver and a microcontroller of the lower receiver, wherein the data is exclusively provided to the powered accessory from the rail.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: March 20, 2018
    Assignee: COLT CANADA IP HOLDING PARTNERSHIP
    Inventors: David Walter Compton, Brenton Stewart Teed