Patents Examined by Swarna N Chowdhuri
  • Patent number: 11987150
    Abstract: An apparatus for managing power of a fuel cell is provided. The apparatus includes a power conversion device that converts a high voltage into a low voltage and supplies the converted low voltage to a low voltage battery, a cooling device that flows coolant to cool the power conversion device, and a controller that controls driving of the power conversion device and the cooling device based on the remaining state of charge (SOC) of the low voltage battery.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: May 21, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Yong Hee Lee, Hyo Jin Kim
  • Patent number: 11990776
    Abstract: Present embodiments include a control system for one or more battery cells. The control system includes a bi-stable relay configured to switch a state of the bi-stable relay upon receiving a control signal to electrically connect or electrically disconnect the one or more battery cells to a bus and to remain in the state after receiving the control signal. The control system includes a controller configured to be operatively coupled to the bi-stable relay and configured to send the control signal indicative of instructions to control operation of the bi-stable relay based on the state.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: May 21, 2024
    Assignee: CPS Technology Holdings LLC
    Inventor: Ronald J. Dulle
  • Patent number: 11975616
    Abstract: An electric vehicle drive system includes: a reactor; and electric vehicle control apparatuses that control electric motors for driving an electric vehicle. Each of the electric vehicle control apparatuses includes: a capacitor that defines a filter circuit together with the reactor; an inverter circuit that supplies power to the corresponding one of the electric motors; and a control unit that controls the inverter circuit. The inverter circuit is housed in a housing together with the capacitor and the control unit. The reactor is connectable to each of the housings through an electric wire having any desired length. At least one of the electric wires connecting the reactor and the housings has a length of 2 meters or more.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: May 7, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidetoshi Kitanaka, Tetsuo Sugahara, Hirokazu Takabayashi
  • Patent number: 11967849
    Abstract: An active filter system for filtering power on a power system may include a converter, an energy storage device, and control circuitry. The converter may be configured to be electrically coupled to a power source at a converter input and an active filter system bus at a converter output. The converter may be configured to deliver power to the active filter system bus that serves a dynamic load. The energy storage device may be electrically coupled to the active filter system bus and configured to filter the power via charge and discharge of an energy storage device. The control circuitry may be configured to control the converter to condition power drawn from the power source to create a filtered load based on programmable active filter controls. The programmable active filter controls may be based on a measurement of a load current being supplied to the dynamic load and a state of charge of the energy storage device.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: April 23, 2024
    Assignee: The Johns Hopkins University
    Inventors: Deanna K. Temkin, Tyler J. Boehmer
  • Patent number: 11964620
    Abstract: A vehicular power supply device to be equipped in a vehicle includes an electric storage unit group, an inverter, a driving motor, a converter, an electric device group, a first switch, and a second switch. The electric storage unit group includes first and second electric storage units. The driving motor is to be coupled to the electric storage unit group via the inverter. The electric device group is to be coupled to the electric storage unit group via the converter. The first switch is to be controlled between a state where the first electric storage unit is coupled to the inverter and a state where the first electric storage unit is coupled to the converter. The second switch is to be controlled between a state where the second electric storage unit is coupled to the inverter and a state where the second electric storage unit is coupled to the converter.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: April 23, 2024
    Assignee: SUBARU CORPORATION
    Inventors: Itaru Seta, Hiroyuki Suzuki, Yosuke Ohtomo, Masaki Komuro, Takashi Kono, Shinya Sagawa, Kazuki Makino
  • Patent number: 11962236
    Abstract: Techniques are disclosed that use an alternating current bridge circuit to determine whether an impedance change occurs at an input to DC-DC voltage converter(s). Techniques are also disclosed for a DC power distribution system that utilizes isolation circuitry coupled to an input of DC-DC voltage converter(s).
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: April 16, 2024
    Assignee: CommScope Technologies LLC
    Inventors: Khalid W. Al-Mufti, Thomas F. Craft, Jr.
  • Patent number: 11951849
    Abstract: Disclosed is a system configured to deliver power to a load in a transport vehicle, the system having: (a) a battery; (b) a super capacitor bank; (c) a bidirectional DC/DC converter configured to transfer power to/from the super capacitors in order to absorb/supply power from/to the load, and configured to transfer power between the super capacitors and the battery and/or the load in order to charge the super capacitor from the battery or load or charge the battery/load from the super capacitors in a controlled way (d) a hybrid controller, the hybrid controller configured to identify when pulsed power is required to/from the load and instructing the DC/DC converter to supply/absorb power to/from the load from/to the super capacitor bank and to identify when power needs to be transferred between the super capacitor and the battery/load to charge or discharge the battery/load and/or super capacitor.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: April 9, 2024
    Assignee: Electro Standards Laboratories
    Inventor: Raymond B Sepe, Jr.
  • Patent number: 11951769
    Abstract: Space-saving in an automobile or the like provided with a battery is achieved. Design flexibility of an automobile or the like can be improved. An electric power control method or an electric power control system capable of utilizing electric power efficiently is provided. It is an electric power control system of an automobile including a car body, a first battery, a second battery, and a control unit. The control unit obtains states of charge of the first battery and the second battery, determines whether or not a difference between remaining capacities of the first battery and the second battery exceeds a predetermined value, and controls transmission of electric power between the first battery and the second battery, in the case where the difference in the remaining capacities exceeds the predetermined value, to be made such that the remaining capacities are close to each other.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 9, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kensuke Yoshizumi, Ryota Tajima
  • Patent number: 11938826
    Abstract: A control device that controls an in-vehicle battery and a charger in a demand and supply control system is configured to obtain total demand for electric power or the like generated in in-vehicle equipment, determine whether or not the total demand is able to be satisfied with electric power or the like suppliable from the in-vehicle battery, when the total demand is not able to be satisfied solely with the in-vehicle battery, and bring the charger into a drive state in a case where the total demand is able to be satisfied with total electric power or the like suppliable from the in-vehicle battery and the charger.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: March 26, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Noritake Mitsutani
  • Patent number: 11923722
    Abstract: Disclosed are systems and methods to provide continuous power to electrical devices using a portable power supply unit and a portable power charging unit. The portable power supply unit may include a first battery providing a first DC output, at least one first inverter for converting said first DC output to a first AC output for powering the electrical devices and for converting a first AC input to a first DC input for charging said first battery The portable power charging unit may include a second battery for providing a second DC output, a second inverter for converting said second DC output to a second AC output; and transmitting the second AC output to the first battery using charging ports on respective units such that said second AC output replaces said first AC output for powering said electrical devices, and replaces said first AC input for charging said first battery.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: March 5, 2024
    Inventor: James Doyle Schwalm, Jr.
  • Patent number: 11915869
    Abstract: A latch system includes a releasably secured latch or keeper and a solenoid assembly. The solenoid assembly has a solenoid driver coupled to a power supply, a switching circuit connected with the solenoid driver, and a function generator to selectively adjust a frequency of a pick current output from the power supply and provided to the solenoid driver. The frequency is adjusted until the pick current induces a resulting vibration of said latch system sufficient to free a preloaded latch or keeper. The adjusted frequency may be a target frequency or a range of frequencies. Also included may be a preload sensor. When a preload is sensed, the frequency may be adjusted by the function generator until the pick current induces a resulting vibration of said latch system sufficient to free a preloaded latch or keeper.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: February 27, 2024
    Assignee: Hanchett Entry Systems, Inc.
    Inventor: Randall Shaffer
  • Patent number: 11912146
    Abstract: A battery charging system includes: an electric motor including stator coils; a battery; a charge port configured to receive power from charging stations by wire; first and second electrical conductors connected between the battery and the charge port; an inverter module including (a) inputs connected to receive power from the battery and (b) outputs connected to the electric motor; a third electrical conductor; and a switch configured to electrically connect and disconnect a first end of the third electrical conductor to and from the first electrical conductor, where the third electrical conductor includes a second end that is connected to at least one of the stator coils via one of the outputs of the inverter module.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Rashmi Prasad, Chandra S. Namuduri
  • Patent number: 11916269
    Abstract: A charging system may include a plurality of fuel cell stacks configured to receive hydrogen from a hydrogen supply unit and generate power, a plurality of charging dispensers configured to be electrically connected to a load device and configured to provide power upon connected to the load device, and a controller configured to distribute and supply the power generated by the plurality of fuel cell stacks to a charging dispenser to which the load device is connected, to compare a total available power amount of the plurality of fuel cell stacks with a total power demand amount of the charging dispenser to which the load device is connected, and to control a power generation amount of each of the plurality of fuel cell stacks according to a result of the comparing.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: February 27, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Deuk Keun Ahn, Jae Min Son
  • Patent number: 11909205
    Abstract: An apparatus for converting power includes at least one impedance matching network which receives an electrical signal. The apparatus includes at least one AC to DC converter in communication with the impedance matching network. Also disclosed is a method for powering a load and an apparatus for converting power and additional embodiments of an apparatus for converting power.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: February 20, 2024
    Assignee: Powercast Corporation
    Inventors: Charles E. Greene, Daniel W. Harrist
  • Patent number: 11890968
    Abstract: A power system is disclosed. The power system includes a first power generating unit. The first power generating unit includes a first power converting subunit and a first control unit coupled to the first power converting subunit, where the first control unit is configured to regulate a voltage of the first power generating unit. The power system further includes a second power generating unit coupled to the first power generating unit and a load, where the second power generating unit includes a second power converting subunit and a second control unit coupled to the second power converting subunit, wherein the second control unit is configured to control a current of the second power generating unit to share a quantity of electrical output current flowing through the load among the first and second power generating units.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: February 6, 2024
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Ajith Kuttannair Kumar, Govardhan Ganireddy, Shahid Ali, Prashanth Manikumar Chennamsetty
  • Patent number: 11894695
    Abstract: A repeater for a wireless power transfer system is disclosed. The repeaters includes an elongated strip of material arranged in a substantially circular configuration with opposing ends of the elongated strip disposed in close proximity to each other, an inductive element associated with the elongated strip and arranged to provide a coupling with an adjacent resonator through flux directed outward from a first surface of the elongated strip, and a capacitive element associated with the elongated strip and arranged to resonate electromagnetic energy with the inductive element when the electromagnetic energy is transferred from the adjacent resonator through the coupling provided by the inductive element.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: February 6, 2024
    Assignee: Minnetronix, Inc.
    Inventors: Vlad Bluvshtein, Lori Lucke
  • Patent number: 11876435
    Abstract: This DC/DC conversion system is provided between a plurality of DC power supplies and a common DC bus, and includes, for each of the plurality of DC power supplies: a DC/DC converter provided between the DC power supply and the DC bus; and a control unit configured to control the DC/DC converter. The control unit corrects a voltage detection value for the DC bus by taking in an individual voltage detection deviation for the DC bus compared to an entirety of a plurality of the DC/DC converters present in parallel, and controls the corresponding DC/DC converter in accordance with a voltage command value having droop characteristics with respect to output power. The DC/DC conversion system as described above can uniform outputs while operating the plurality of DC/DC converters in parallel without the need of fast communication.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: January 16, 2024
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Naoki Ayai
  • Patent number: 11865929
    Abstract: An apparatus for controlling charging of an electric vehicle is configured to calculate a rotor torque expected to occur during charging based on an angle of a rotor provided in a driving motor before charging is performed by multiple input voltages, and allow charging to be performed after inducing the rotor torque to be less than a reference torque by moving the electric vehicle a specified distance to correct the rotor angle when the calculated rotor torque is greater than the reference torque so as to avoid deterioration or damage to a parking sprag. As a result, it is possible to prevent the parking sprag from being damaged by the rotor torque generated during charging so as to avoid the occurrence of an accident.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: January 9, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Seung Hyeon Bin, Han Hee Park, Ho Sun Jang, Ho Rim Choi, Tae II Yoo, Seong Min Kim
  • Patent number: 11869707
    Abstract: An IPT track arrangement including a power supply and conductor electrically connected to the power supply, the conductor includes a plurality of loops located substantially adjacent one another, wherein the polarity in adjacent portions of the loops is the same, and wherein the power supply includes a one or more inverters which share the track load.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: January 9, 2024
    Assignee: AUCKLAND UNISERVICES LIMITED
    Inventors: Grant Anthony Covic, Stefan Raabe
  • Patent number: 11858355
    Abstract: A vehicle power supply system mounted on a vehicle is provided. The vehicle power supply system includes a main battery, a power converting apparatus configured to convert DC power of the main battery into AC power, a switch configured to switch a state between energization and cutoff between the main battery and the power converting apparatus, a first DC-DC converter connected to a power supply wiring between the switch and the power converting apparatus, and a second DC-DC converter connected to a power supply wiring between the switch and the main battery. The first DC-DC converter and the second DC-DC converter are mounted at positions distant from each other in the vehicle.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 2, 2024
    Assignee: DENSO CORPORATION
    Inventor: Shigeo Hirashima