Patents Examined by Aaron Piggush
  • Patent number: 11205914
    Abstract: The present invention relates to a battery charging device and a charging control method thereof, the battery charging device including: a charger configured to provide a charging voltage for charging a battery; at least one processor configured to control the charger; and a variable resistor placed on a charging path and configured to adjust a charging capacity provided from the charger to the battery and have a resistance determined corresponding to a digital code received from the processor, wherein the processor corrects the digital code to be output to the variable resistor in accordance with battery charging characteristics monitored during a charging cycle of the battery. Thus, flexible and adaptive charging control is possible through at least one digital variable resistor provided in the charging device, and error situations are handled in real time by correcting the digital code through monitoring in a charging process.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: December 21, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jason Battle, Ki-young Kim, Khandelwal Ashish
  • Patent number: 11196095
    Abstract: A battery pack containing a frame; and two or more battery cells installed to the frame. The two or more battery cells are interconnected by a configurable connector which is configured to enable electrical connections between the two or more battery cells. The configurable connector is adapted to be configured in a first status or a second status. In the first status, the two or more battery cells are electrically connected, and in the second status, the two or more battery cells are not electrically connected. The battery pack is not fully operational without the terminal holder inserted, therefore before it is delivered to the end user the energy loss due to self-discharging during storage and shipping can be minimized.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: December 7, 2021
    Assignee: Techtronic Cordless GP
    Inventors: Denis Gaston Fauteux, Hei Man Raymond Lee, Jian Guo Zhao, Yuan Bai Wu
  • Patent number: 11186186
    Abstract: A control apparatus is used for an electric electric vehicle. The electric vehicle charges a storage battery with electric power that is supplied while traveling in a power supply lane that is a travelling road on which contactless power supply is able to be performed. The control apparatus for the electric vehicle includes a charging control unit and a range changing unit. The charging control unit controls charging of a storage battery of an electric vehicle such that a charge amount of the storage battery falls within a target range that is a preset range. The range changing unit changes at least one of an upper limit value and a lower limit value of the target range based on a state of the electric vehicle.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: November 30, 2021
    Assignee: DENSO CORPORATION
    Inventor: Tomomi Hase
  • Patent number: 11190034
    Abstract: A charging stand includes a casing and a quick release assembly. The casing includes a first sidewall, a second sidewall, and a bottom plate. The first and second sidewalls are disposed oppositely and connected to two edges of the bottom plate, respectively, to form a receiving chamber. The quick release assembly includes a body and a fixing element. When the quick release assembly is demountably disposed in the receiving chamber, the fixing element is engagedly disposed on the bottom plate.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 30, 2021
    Assignee: GETAC TECHNOLOGY CORPORATION
    Inventor: Tzu-Chiu Huang
  • Patent number: 11183859
    Abstract: An apparatus for preventing over-discharge of a battery includes: a first switch between a battery cell and an output terminal; a second switch having one end and another end respectively electrically connected to one end of the first switch and to the output terminal; a current limiting resistor located between a first node located between the first switch and the second switch and a second node located between the second switch and the output terminal; a third switch having one end and another end respectively electrically connected to another end of the current limiting resistor and to the second node; and a processor to set a reference voltage by using at least one of a minimum operating voltage of the battery cell, a first drop voltage by the current limiting resistor and a second drop voltage by an internal resistor of the battery cell.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: November 23, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung-Jik Kim, Young-Su Son, Jin-Hyun Lee
  • Patent number: 11177676
    Abstract: This disclosure describes exemplary charging systems and methods for fast charging energy storage devices (e.g., battery cells of battery packs). An exemplary charging system may be configured to control charging of a charging circuit by employing repetitive intermittent discharge pulses. The control system may be configured to command the charging circuit to apply a discharge pulse current to the battery cell for a first time period, apply a charging current to the battery cell for a second time period that is significantly longer than the first time period, and then repetitively alternate between applying the discharge pulse current and the charging current until the battery cell reaches a predefined maximum voltage.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: November 16, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Minghong Liu, Kent Snyder
  • Patent number: 11177675
    Abstract: A charging control device is equipped with a state of charge detection unit adapted to detect a state of charge of a secondary battery, a storage unit adapted to store a charging pattern in which the state of charge and a charging current are associated, and a charging control unit adapted to change the charging pattern in accordance with the state of charge of the secondary battery when charging is initiated, and to control the charging current in accordance with the charging pattern after having been changed.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: November 16, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hajime Abe, Naoya Okada, Hiroki Tsutsumi
  • Patent number: 11171498
    Abstract: An approach to control or monitoring of battery operation makes use of a recurrent neural network (RNN), which receives one or more battery attributes for a Lithium ion (Li-ion) battery, and determines, based on the received one or more battery attributes, a state-of-charge (SOC) estimate for the Li-ion battery.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: November 9, 2021
    Assignees: The Trustees of Columbia University in the City of New York, McMaster University
    Inventors: Ephram Chemali, Matthias Preindl
  • Patent number: 11161423
    Abstract: A method for charging an electric vehicle may include (a) a step of determining, by a vehicle-side controller, whether to exchange cooling fluid between the vehicle and electric vehicle service equipment (EVSE), when a charge port of the vehicle and a connector of the electric vehicle service equipment are connected together, (b) a step of providing, by the vehicle-side controller, a signal for requesting the exchange of the cooling fluid to a charger-side controller when determining to exchange the cooling fluid, and (c) a step of controlling, by the vehicle-side controller, a cooling line of the vehicle through which cooling fluid of the vehicle circulates, to cause the cooling fluid of the vehicle to flow into a cooling line of the electric vehicle service equipment through the charge port.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 2, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kyu Beom Ko
  • Patent number: 11155177
    Abstract: A charging station monitoring system comprising: a sensing device, a digital camera and a communication device which are arranged at a charging apparatus of a charging station, the sensing device and the digital camera each having a sensing range covering a parking lot associated with the charging apparatus and an area around the parking lot; and a controller configured to determine an occupation state of the parking lot and/or detect and record an action of a third party or foreign object based on sensed information from the sensing device and the digital camera.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: October 26, 2021
    Assignee: Volvo Car Corporation
    Inventors: Wei Li, Huapeng Lu, Xuming Yao, Youjia Zhou
  • Patent number: 11159037
    Abstract: A charging method and an electronic device are provided. The electronic device includes a charging interface, a charging circuit and a battery. The charging circuit includes a high-voltage direct-charging chip, an output end of the charging interface is connected to an input end of the high-voltage direct-charging chip, and an output end of the high-voltage direct-charging chip is connected to the battery to output charging current to the battery. The method includes: turning on the high-voltage direct-charging chip; outputting a first current to the high-voltage direct-charging chip through the charging interface; and increasing the charging current by a first predetermined current and then outputting the charging current to the battery through the high-voltage direct-charging chip every time till the charging current reaches a first target current such that the voltage of the battery is increased slowly to leave enough time for detection.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: October 26, 2021
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Jie Fan
  • Patent number: 11152813
    Abstract: A battery control system includes a battery including: first, second, and third terminals; a plurality of individual groups of two or more battery cells; and a plurality of switches configured to connect ones of the individual groups to and from ones of the first, second, and third terminals. A mode module is configured to set a mode to a first mode when a fault is present in a charging source of the battery. A switch control module is configured to control the plurality of switches based on a first predetermined capacity allotment when the mode is in the first mode.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: October 19, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lyall K. Winger, Dave G. Rich, Saad Hasan
  • Patent number: 11152807
    Abstract: A method selects one or a plurality of sets of values characterizing an electric power of a power source capable of powering a device coupled to the power source via a connection interface. The selection is carried out according to values, characterizing the power supplied by the power source, measured at the connection interface.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: October 19, 2021
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventors: Jean Camiolo, Christophe Lorin
  • Patent number: 11148541
    Abstract: A method of locating an electric vehicle at a charging station having multiple chargers is includes, receiving at multiple fixed transceivers positioned at different locations in the charging station, signals from the electric vehicle as the electric vehicle moves in the charging station, and determining, at a controller, a current location of the electric vehicle in the charging station using the signals received by the multiple fixed transceivers.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 19, 2021
    Assignee: PROTERRA INC.
    Inventors: Jason Hom, Hayley Cashdollar, Dustin Grace
  • Patent number: 11152800
    Abstract: A device may cause constant voltage pulse charging of a battery by a battery charger. The device may determine a first voltage value associated with the battery and may cause, based on the first voltage value satisfying a voltage value threshold, the constant voltage pulse charging of the battery to pause for a first period of time. The device may determine, after the first period of time, a second voltage value associated with the battery and may cause, based on the second voltage value satisfying the voltage value threshold, the constant voltage pulse charging of the battery to pause for a second period of time. The device may determine, after the second period of time, a third voltage value associated with the battery and may cause, based on the third voltage value satisfying the voltage value threshold, the constant voltage pulse charging of the battery to cease.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 19, 2021
    Assignee: Caterpillar Inc.
    Inventor: Wellington Kwok
  • Patent number: 11133536
    Abstract: Provided are battery management apparatuses and methods. The battery management apparatus includes a converter configured to acquire and convert information of a battery cell, an antenna configured to transmit the converted information to an adjacent battery cell and to receive converted information of the adjacent battery cell, in response to a command of a controller, and a coil configured to wirelessly charge or discharge the adjacent battery cell, in response to another command of the controller, wherein the controller is configured to control the wireless charging or the wireless discharging based on information of the adjacent battery cell.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 28, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: YoungJae Kim, Jinyong Jeon, Younghun Sung
  • Patent number: 11127991
    Abstract: A rapid charging method and a system for a mobile terminal are provided, which are capable of increasing charging current and dissipating heat. The method includes communicating a controller of the mobile terminal with the charging accessory through a Type-C interface after the mobile terminal detects that the charger is connected to an electric power supply; turning on a load switch by the controller, so that the microcontroller controls a first charging integrated circuit (IC) to start charging, and the controller controls a second charging IC of the mobile terminal to start charging; and stopping charging of the second charging IC of the mobile terminal, and charging the first charging IC of the charging accessory until power of the battery is full when a charging current gradually decreases to a threshold.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: September 21, 2021
    Assignee: HuiZhou TCL Mobile Communication Co., Ltd.
    Inventor: Zhan Gu
  • Patent number: 11114704
    Abstract: Methods and systems for depassivating completion tool batteries are provided. In one embodiment, the methods comprise: providing a completion tool disposed within a wellbore penetrating at least a portion of a subterranean formation, wherein the completion tool is electrically coupled to an at least partially passivated lithium battery; depassivating the at least partially passivated lithium battery in the wellbore by discharging the lithium battery; and powering the completion tool with the at least partially depassivated lithium battery.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: September 7, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael Linley Fripp, Zachary William Walton, Matthew James Merron
  • Patent number: 11114879
    Abstract: A smart charging method can supply a charging device with power, and the charging device includes charging regions disposed inside thereof, and each charging region includes sockets for charging mobile electronic devices. The charging device includes a control circuit to perform automatic charging control on the mobile electronic devices plugged into the charging regions. During process of the automatic charging control, inrush current is filtered out, and when the total current required by at least two charging regions is higher than a maximal current supply value, the at least two charging regions take turn to charge for a first charging period; otherwise, the charging regions satisfying the condition, and remaining charging region can take turn to charge for a second charging period until the mobile electronic devices are fully charged. The smart charging method can filter out inrush current and effectively increase the charging efficiency.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: September 7, 2021
    Assignee: CHEN-SOURCE INC.
    Inventor: Cheng-Jen Lin
  • Patent number: 11108258
    Abstract: An electronic timepiece includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor determines remaining power of the secondary battery based on different references that are a reference of when the first power feeder is feeding the power to the secondary battery and a reference of when the second power feeder is feeding the power to the secondary battery.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: August 31, 2021
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Fumiaki Ochiai, Yoshinori Asami, Yohei Kawaguchi, Katsuhiko Obata