Patents Examined by Karen Masih
  • Patent number: 12006068
    Abstract: A space launch system and method through electromagnetic pushing. The space launch system comprises an energy storage subsystem, an energy conversion subsystem, a linear motor subsystem, and a control maintenance subsystem. The space launch system converts the electric energy into an electromagnetic force. Through the electromagnetic force, a rocket is pushed to be accelerated to a certain speed along an electromagnetic launching track to realize the launching of the rocket.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: June 11, 2024
    Assignee: NAVAL UNIVERSITY OF ENGINEERING
    Inventors: Weiming Ma, Yuxing Zhang, Mingyuan Zhang, Xiangming Zhang, Weichao Li, Xinlin Long, Chen Deng
  • Patent number: 11997960
    Abstract: A hand-guided gardening, forestry and/or construction processing device includes a processing tool, an electric motor drive system, wherein the electric motor drive system is designed to drive the processing tool, a user-adjustable operating element, and a control device. The control device is designed to control a target slope rate of a rotational speed of the electric motor drive system in dependence on a position of the operating element according to at least one allocation in such a way that maximum target slope rates of the rotational speed differ for different positions.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: June 4, 2024
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Heinrich Leufen, Philippe Buerckel, Simon Klaiber, Alexander Haas
  • Patent number: 11990647
    Abstract: A modular battery system includes an array of battery modules arranged in at least one stack. Each battery module includes a plurality of battery cells, a first side having positive and negative receptacles and a second side, that is opposite of the first side, having positive and negative plugs. The receptacles and plugs are configured such that adjacent battery modules in a side-by-side relationship are electrically coupled together via plug and receptacle connections and such that the battery modules are electrically coupled together in parallel. An interconnection electrically couples each stack of battery modules together via plug and receptacle connections with one of the battery modules in each stack such that the stacks of battery modules are electrically coupled together in parallel. Each of the battery modules includes a thermal conditioning system configured to thermally isolate the battery module from the other battery modules.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: May 21, 2024
    Assignee: Textron Innovations Inc.
    Inventors: Michael Raymond Hull, Steven Loveland, Yue Fan
  • Patent number: 11990858
    Abstract: A method and a circuit arrangement for damping stepper motor resonances during operation of a stepper motor (M), in particular in the medium und high speed range, is described, wherein the coils (A; B) of the stepper motor (M) are each connected into a bridge circuit (Br1; Br2) comprising semiconductor switches (Sw1, . . . Sw4), in order to impress into the coils (A; B) a predetermined target coil current (ISollA; ISollB). The resonance damping is essentially achieved by activating a passive FD-phase in the zero crossing of the target coil current (ISollA; ISollB), during which all 10 semiconductor switches (Sw1, . . . Sw4) are opened or switched blocking, in order to thereby feed a coil current flowing in the related motor coil (A; B) back into the supply voltage source either via inverse or body diodes and/or via diodes (D1, . . . D4) connected in parallel to the semiconductor switches (Sw1, . . . Sw4) in the reverse direction between the positive supply voltage (+VM) and ground potential.
    Type: Grant
    Filed: September 5, 2022
    Date of Patent: May 21, 2024
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventor: Bernhard Dwersteg
  • Patent number: 11984832
    Abstract: A drive axle system and a method of control. A control system determines a torque command based on an inverter temperature, a stator temperature of a stator of an electric motor, and a rotor temperature of a rotor of the electric motor. The electric motor is operated to provide torque based on the torque command.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: May 14, 2024
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Edvin Godo, Banuchandar Muthukumar
  • Patent number: 11979103
    Abstract: A method and system of performing a pole switching operation in a multi-phase machine include operating the multi-phase machine in a first configuration with a first number of poles, where the first number of poles is based on a first number of phases in the first configuration and a number of stator slots allocated for each winding in the multi-phase machine. The method and system also include receiving a signal indicating the pole switching operation in the multi-phase machine. In response to receiving the signal, the method and system include operating the multi-phase machine in a second configuration with a second number of poles, where the second number of poles is based on a second number of phases in the second configuration and the number of stator slots allocated for each winding in the multi-phase machine.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: May 7, 2024
    Assignee: CUMMINS INC.
    Inventors: Akm Arafat, Bradford K. O. Palmer
  • Patent number: 11967885
    Abstract: A brake-generator system and associated method including: a rotor secured to a vehicle wheel, the rotor including a housing cylinder and a plurality of magnets affixed to an inner surface of the housing cylinder, where the plurality of magnets are radially arranged with alternating polarity; and a stator fixed to a vehicle wheel axle, the stator including a plurality of steel laminations and a plurality of conductor blocks, each conductor block of the plurality of conductor blocks being disposed in a slot formed in a steel lamination of the plurality of steel laminations; where the plurality of conductor blocks include a plurality of windings for carrying selectively-applied electrical current, such that with the rotor disposed around the stator and current being applied to the plurality of windings, a braking of the vehicle wheel results.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: April 23, 2024
    Assignee: INDUCTIVE VENTURES, LLC
    Inventors: Andrew Wissing, Tony Morris, Geoff Wissing, Kent Davey
  • Patent number: 11964686
    Abstract: A switch device for moving switch rails. The switch device includes a motor operatively coupled to move the switch rails into and between first and second positions. The motor is configured for electricity to flow therethrough along a first path and a second path. A first path relay has two normally open contacts each within the first path, where activating the first path relay closes the two normally open contacts thereof. A second path relay has two normally open contacts each within the second path, where activating the second path relay closes the two normally open contacts thereof. The motor moves the switch rails towards the first position when the first path relay is activated and the second path relay is deactivated, and the motor moves the switch rails towards the second position when the second path relay is activated and the first path relay is deactivated.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: April 23, 2024
    Assignee: Precision Rail and Mfg., Inc.
    Inventors: David Dworschack, James D. Braatz
  • Patent number: 11962257
    Abstract: A blower in one aspect of the present disclosure includes: a housing including a first discharge port; a motor in the housing; a fan in the housing; an attachment fitting portion; and a motor drive circuit. The attachment fitting portion is configured to detachably attach, to the first discharge port, an attachment including a second discharge port. The motor drive circuit (i) delivers a designated power to the motor and (ii) performs a constant power control that maintains a magnitude of an electric power delivered to the motor at a magnitude of the designated power.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: April 16, 2024
    Assignee: MAKITA CORPORATION
    Inventors: Yuki Kawai, Naoya Asami
  • Patent number: 11955917
    Abstract: A motor control system includes host control circuitry configured to generate a first control command; a plurality of motor control apparatuses configured to control a plurality of motors, respectively, based on the first control command; and reference information output circuitry configured to output reference information to one of the plurality of motor control apparatuses which is configured to control one of the plurality of motors. The reference information relates to control of the plurality of motors. Each of the plurality of motor control apparatuses corresponds to a corresponding motor among the plurality of motors and includes information sharing circuitry configured to share the reference information among the plurality of motor control apparatuses via data communication; command conversion circuitry configured to convert the reference information into a second control command; and motor control circuitry configured to control the corresponding motor based on the second control command.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: April 9, 2024
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Toshinobu Kira, Tadashi Okubo, Isamu Matsumura, Ryo Ota, Yu Katono
  • Patent number: 11955912
    Abstract: A method for operating a motor vehicle having at least one electric machine, which is electrically coupled across a pulse inverter to a DC distribution bus of a high-voltage onboard network of the motor vehicle, includes, by means of a compensation unit electrically coupled to the DC distribution bus, feeding an electric compensation voltage to the DC distribution bus such that ripple of the electric DC voltage present in the DC distribution bus which is caused by the pulse inverter is at least partly compensated.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: April 9, 2024
    Assignee: AUDI AG
    Inventor: Roman Straßer
  • Patent number: 11949357
    Abstract: Disclosed herein is a control circuit of a three-phase DC motor used along with an external resistance and a three-phase inverter. The control circuit includes a current detection circuit that generates a first current detection value indicating an amount of current of a first current flowing through a first phase of the three-phase inverter. The current detection circuit can generate the first current detection value, based on a voltage drop of a resistance component of a wire existing on a path of the first current, the wire being formed from a material containing copper, or based on a voltage drop of a first resistance that is an on-resistance of an arm of the first phase, and can use, as a standard, a current detection value based on a voltage drop of the external resistance to calibrate the first current detection value based on the voltage drop of the first resistance.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: April 2, 2024
    Assignee: ROHM Co., LTD.
    Inventor: Hisashi Sugie
  • Patent number: 11938827
    Abstract: The present disclosure relates to a system for controlling a motor of a vehicle for increasing control accuracy of the motor for driving the vehicle, and an object of the present disclosure is to provide a system for controlling a motor of a vehicle, which may accurately perform a motor control even when a battery voltage (i.e., motor voltage) applied to the motor upon the driving control of the motor is changed.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: March 26, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ho Sun Jang, Han Hee Park, Seong Min Kim, Ho Rim Choi, Seon Mi Lee, Tae Il Yoo, Seung Hyeon Bin
  • Patent number: 11938628
    Abstract: An electronic circuit comprises a charge storing component, a set of one or more switching components coupled to the charge storing component, and an additional switching component coupled to each of the one or more switching components in the set. The additional switching component is configured to operate in a first state or a second state based on a received current or voltage. The first state prevents current to flow from the charge storing component to each of the one or more switching components in the set and the second state allows current to flow from the charge storing component to each of the one or more switching components in the set.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: March 26, 2024
    Assignee: Boston Dynamics, Inc.
    Inventor: Kyle Rogers
  • Patent number: 11936318
    Abstract: Charging system and method using a motor driving system are proposed. The charging system includes a battery, an inverter to which D.C. power stored in the battery is applied, including a plurality of legs each including two switching elements, a motor including a plurality of coils of which first ends are respectively connected to connection nodes of the switching elements of each of the plurality of legs, and second ends are connected to each other to form a neutral point, and an inverter driving part configured to control switching of the switching elements, so that switching speeds of the switching elements are different for each mode of a motor driving mode and a charging mode so as to change magnitude of charging voltage supplied to the neutral point of the motor and to output the charging voltage to the battery.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: March 19, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Ji Woong Jang, Sang Cheol Shin, Yoo Jong Lee, Ki Jong Lee, Ho Tae Chun
  • Patent number: 11932115
    Abstract: An electrical system for operating an AC electric motor in conjunction with a DC electrical energy storage and a DC electrical energy source is presented. It includes a multi-phase inverter or set of inverters, wherein multiple AC phases of the inverter or inverters are coupled to the motor, and separate DC connections of the inverter or inverters are coupled to the DC electrical energy source and the DC electrical energy storage.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: March 19, 2024
    Assignee: Vitesco Technologies GmbH
    Inventors: Martin Brüll, Florian Uhrig
  • Patent number: 11936321
    Abstract: An apparatus and method for suppressing torque generation of a three-phase motor, includes a torque determination device that determines a second torque value for suppressing a first torque value due to a zero phase sequence component current of the three-phase motor, a control amount determination device that determines a voltage control amount for generating the determined second torque value, and a controller that is configured to control the three-phase motor according to the determined voltage control amount.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: March 19, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Yong Jae Lee, Jung Hwi Kim, Hyun Jae Lim
  • Patent number: 11932137
    Abstract: A regenerative torque upper limit is set to a larger value when a rear-wheel distribution ratio is small than when the rear-wheel distribution ratio is large. Accordingly, when a distribution of a drive power to front wheels is large, a regenerative torque of a second rotary machine can be increased such that wheels are less likely to slip at the time of performing of regeneration control when the distribution of the drive power to the front wheels is small in comparison with a case in which the regenerative torque upper limit is set to a constant value similarly to when the distribution of the drive power to the front wheels is small. In this way, it is possible to increase the regenerative torque of the second rotary machine according to the rear-wheel distribution ratio.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: March 19, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi Tabata, Koichi Okuda, Masato Nakano, Yuki Makino
  • Patent number: 11914343
    Abstract: A command generation device to control a motor includes command input circuitry configured to receive a first command, first intermediate data calculation circuitry configured to calculate first intermediate data based on the first command, delay time setting circuitry configured to determine a delay time based on the first command, second intermediate data calculation circuitry configured to calculate second intermediate data by smoothing the first intermediate data based on the delay time, and command output circuitry configured to calculate, based on the second intermediate data, a second command according to which the motor is controlled. A first time period during which positioning the motor based on the first command is completed when the first intermediate data is smoothed is longer by the delay time than a second time period during which positioning the motor based on the first command is completed when the first intermediate data is not smoothed.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: February 27, 2024
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kenichi Hirose, Yasuhiro Suzuki, Atsuro Tandai, Kenshiro Yokoi
  • Patent number: 11909343
    Abstract: A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: February 20, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Kang Ho Jeong, Jong Kyong Lim, Suk Hyun Lim, Ji Woong Jang, Beom Sik Kim, Sang Cheol Shin