Patents Examined by Devon A Joseph
  • Patent number: 10836262
    Abstract: An electric power generation control device applied to a system including a generator capable of regenerative electric power generation, an electric power storage device capable of being charged with electric power, and a friction brake device that generates a braking force. The control device includes an operation amount acquisition unit that acquires a brake operation amount by the driver, an electric power generation amount acquisition units that increase a target electric power generation amount for the generator the larger the brake operation amount is, and have plural relationships of which the target electric power generation amounts that correspond to a certain brake amount differ, and acquire the target electric power generation amount according to one of the relationships based on change in the brake operation amount, and an electric power generation amount instruction unit that controls the generator based on the target electric power generation amount.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: November 17, 2020
    Inventor: Yoshinori Morita
  • Patent number: 10808810
    Abstract: An electrically driven device includes a housing, an electric motor with a drive shaft having a first rotary axis and a drive pin eccentrically connected to the drive shaft, and a driven shaft having a second rotary axis and mounted in the housing for a pivoting movement. The driven shaft is coupled to the drive pin by a gear mechanism converting a rotary motion of the drive shaft into the reciprocating pivoting of the driven shaft. The gear mechanism has first and second transmission stages, the former including a cross slider, and the latter an elastically deformable transmission member. The cross slider has a sliding support extending perpendicular to the first rotary axis and receiving the drive pin. The cross slider is axially guided in the housing to move in an axial direction perpendicular to the first rotary axis and perpendicular to the extension of the sliding support. A link, offset relative to the second rotary axis, connects the cross slider to the elastically deformable transmission member.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: October 20, 2020
    Assignee: Braun GmbH
    Inventors: Andreas Kramp, Thomas Fritsch, Norbert Schaefer
  • Patent number: 10790771
    Abstract: A method for determining a droop response profile of a rotating electrical machine supplying electricity to an electrical grid having a network frequency varying on either side of a nominal frequency, in which a measured value of the rotation speed of the rotating machine is retrieved, and the droop response parameters dependent on the measured speed value are defined. The droop response profile is a graph centered on the coordinates of an origin point between 99% and 101% of the measured speed and defined by at least two points of coordinates in the case of underspeed and/or by at least two points of coordinates in the case of overspeed, each of the points having for its abscissa a speed value as a percentage of the measured speed, and for the ordinates, a filtered speed value as a percentage of the measured speed modulated by at least one of the droop response parameters.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: September 29, 2020
    Inventors: Denis Michel Martin, S├ębastien Philippe Grosshans
  • Patent number: 10784808
    Abstract: In a variable speed generator-motor apparatus, a power converter includes six two-terminal arms each formed by serially connecting k unit converters that can output arbitrary voltage, an AC rotating electric machine includes an armature winding with 60-degree phase zone formed from a double layer coil, the armature winding being divided into first and second pole sides to form double star connection by binding neutral points and to be drawn out as two sets of three-phase terminals; three-phase terminals on the first pole side are connected to first terminals of three arms, and second terminals of the three arms are star-connected to a first terminal of a DC power supply; three-phase terminals on the second pole side are connected to second terminals of remaining three arms, and first terminals of the three arms are star-connected to a second terminal of the DC power supply.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 22, 2020
    Inventors: Akira Bando, Osamu Nagura
  • Patent number: 10766437
    Abstract: Systems, components, and methodologies are provided for improvements in operation of automotive vehicles by enabling monitoring analysis and reaction to subtle sources of information that aid in prediction and response of vehicle control systems across a range of automation levels. Such systems, components, and methodologies include wheel-turn detection equipment for detecting a wheel angle of another vehicle to trigger a vehicle control system to perform an operation based on the detected wheel angle of the other vehicle.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: September 8, 2020
    Assignees: Volkswagen AG, Audi AG, Porsche AG
    Inventors: Mirko Herrmann, Angela-Kristina Speidel
  • Patent number: 10732583
    Abstract: An apparatus for starting operation of a motor of an implantable blood pump including a memory storing one or more default parameters for at least one of controlling and monitoring the startup operation. A processor operatively coupled to the motor is included, the processor is configured to: commence the startup operation based on the one or more default parameters; detect an error during the startup operation; adjust at least one of the one or more default parameters in response to the detected error; store the at least one adjusted parameter in the memory; and commence subsequent startup operations based at least in part on the at least one adjusted parameter.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 4, 2020
    Assignee: HeartWave, Inc.
    Inventor: John Rudser
  • Patent number: 10734912
    Abstract: A linear motor comprises a stator, the stator comprising multiple drive coils and an intermediate circuit electrically conductively connected to each drive coil, the intermediate circuit being configured to exchange energy with each drive coil. The drive coils are arranged along the running rail, where at least one slide comprising a magnet acting as a rotor of the linear motor is movably arranged on the running rail. A controller is configured to independently control each drive coil, so that electrical energy is fed from the intermediate circuit into the drive coils, if a measured intermediate circuit voltage is greater or equal to a predetermined intermediate circuit voltage threshold value, where those drive coils are excluded from the feed-in of the electrical energy which are instantaneously being used for driving or braking the at least one slide and/or have a thermal load which exceeds a predetermined thermal load threshold value.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: August 4, 2020
    Assignee: Beckhoff Automation GmbH
    Inventors: Tim Kaulmann, Uwe Pruessmeier, Thomas Vorbohle
  • Patent number: 10734926
    Abstract: A multi-axis motor control system includes a host control apparatus, motors, motor control apparatuses that drives the motors and each includes circuitry that acquires control related information transmitted and received between the host control apparatus and at least one other motor control apparatus, and controls a corresponding motor of the motors based on the control related information, and a communication channel that connects the host control apparatus and the motor control apparatuses in series.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: August 4, 2020
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Yusuke Oka, Hiroki Inoue, Tadashi Okubo
  • Patent number: 10727775
    Abstract: To provide a motor drive device that suppresses voltage fluctuation of a DC link capacitor, as well as enabling for low cost and size reduction. A motor control unit sets a threshold of voltage at which to start regeneration to a first threshold in a case of an increased amount per unit time of a DC voltage value detected by a voltage detection part being less than a certain amount, and sets the threshold of voltage at which to start regeneration to a second threshold that is larger than the first threshold, in a case of the increased amount per unit time of the DC voltage value detected by the voltage detection part being at least a certain amount.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: July 28, 2020
    Inventors: Tomokazu Yoshida, Kiichi Inaba, Shigeki Hanyuu
  • Patent number: 10712153
    Abstract: Provided is a method for controlling an ultrasonic motor to reduce deterioration of automatic tracking performance, and a surveying instrument for the same. The present invention provides a method for controlling an ultrasonic motor in a surveying instrument including a rotary shaft, an ultrasonic motor that drives a rotary shaft, a tracking unit that includes a light emitting unit and a light receiving unit and tracks a target, and a clock signal oscillation unit that outputs a clock signal, wherein at the time of low-speed rotation of the ultrasonic motor, based on the clock signal, a ratio of an acceleration period in which a drive signal is applied and a deceleration period in which the drive signal is stopped in a drive cycle of the drive signal of the ultrasonic motor is set, and the light emitting unit is made to emit light in the deceleration period.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: July 14, 2020
    Inventors: Kaoru Kumagai, Satoshi Yanobe, Tetsutaro Kouji
  • Patent number: 10710220
    Abstract: A power tool is provided including a brushless DC (BLDC) motor, a rectifier that receives an alternative current from a power supply and outputs a rectified signal supplied to a DC power bus, and an inverter circuit having motor switches connected electrically between the DC power bus and the motor. A control module controls a switching operation of the power switches to regulate supply power from the power supply to the motor. The control module controls the switching operation so as to, within a half cycle of the AC power supply voltage waveform, increase current draw from the power supply from a first threshold at or after a first zero-crossing of the half cycle up to a second threshold, and reduce current draw from the power supply from the second threshold up to a third threshold at or prior to a second zero-crossing of the half cycle.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: July 14, 2020
    Assignee: Black & Decker Inc.
    Inventors: Alexander Manasseh, Scott J. Eshleman, Robert A. Usselman, John D. Cox
  • Patent number: 10700626
    Abstract: An air conditioner includes: a power generating unit that generates drive power for driving the air conditioner; an output unit that drives a motor; a detecting unit that detects a DC voltage applied to the output unit; a motor drive control unit that controls the output unit based on a detection result from the detecting unit; a drive power supply unit that supplies an operating power source to the output unit and the motor drive control unit; a main body control unit that outputs a motor drive command or a motor drive stop command to the supply unit; a power circuit unit that supplies operating power to the main body control unit and the supply unit; and an input changeover switch that inputs the detection result to the motor drive control unit as the motor is driven, and cuts off input of the detection result as the motor stops.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: June 30, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshihito Ono
  • Patent number: 10675104
    Abstract: A surgical assembly includes an electromechanical instrument and an instrument drive unit. The electromechanical instrument includes a housing portion and a shaft. The instrument drive unit includes an outer shell, an inner hub, a first motor, and a second motor. The outer shell is configured to be selectively coupled to a robotic arm. The inner hub is rotatably disposed within the outer shell and configured to be non-rotatably coupled to the housing portion of the electromechanical instrument. The second motor is disposed within the outer shell and includes an outer stator fixedly coupled to the outer shell, and an inner rotor rotatably disposed within the outer stator. The inner rotor has an inner surface that defines a longitudinal channel having the inner hub non-rotatably disposed therein. Actuation of the second motor rotates the inner hub to effect rotation of the electromechanical instrument along a longitudinal axis thereof.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: June 9, 2020
    Assignee: Covidien LP
    Inventor: Jaimeen Kapadia
  • Patent number: 10669112
    Abstract: To control a winding drive current of a motor based on a command phase representing a target phase of a rotor of the motor, a motor control apparatus includes a filter circuit, a phase determiner, and a controller. A current value of the drive current flowing through the winding is obtained at a predetermined period. The filter circuit reduces a harmonic component in a fundamental frequency of the drive current included in a signal indicated by the obtained current value. The phase determiner determines a rotation phase of the rotor based on a filter processed signal. The controller controls the winding drive current to reduce a deviation between the command phase and the determined rotation phase. The filter circuit reduces a harmonic component from a signal indicated by current values of which a number is not greater than a number of the current values obtained at the predetermined period.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: June 2, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shingo Kitamura
  • Patent number: 10666181
    Abstract: The invention provides a system for creating a prescribed vibration profile on a mechanical device comprising a sensor for measuring an operating condition of the mechanical device, a circular force generator for creating a controllable rotating force vector comprising a controllable force magnitude, a controllable force phase and a controllable force frequency, a controller in electronic communication with said sensor and said circular force generator, the controller operably controlling the controllable rotating force vector, wherein the difference between the measured operating condition and a desired operating condition is minimized.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 26, 2020
    Assignee: LORD Corporation
    Inventors: Mark R. Jolly, Russell E. Altieri, Askari Badre-Alam, Jonathan M. Owens, Anthony Gray Hunter, Bradley N. Jones, Brian Carr, Ben Holton, Eric Cady
  • Patent number: 10644634
    Abstract: An electric power tool in one aspect of the disclosure comprises an operation unit, a bridge circuit having a plurality of switching elements, and a control unit. The control unit is configured to select from the plurality of switching elements a pair of switching elements forming a current path of a motor. The control unit selectively executes one of non-complementary PWM in which one of the selected switching elements is turned on and the other turned on/off, and complementary PWM in which, in addition to the same control as that of the non-complementary PWM, a switching element connected to the same terminal of the motor as the other of the selected switching elements is turned on/off so that an on/off state of the switching element is reversed to that of the other of the selected switching elements.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: May 5, 2020
    Inventor: Yoshitaka Ichikawa
  • Patent number: 10637385
    Abstract: A motor drive device includes a motor drive circuit which drives a stepping motor provided with three coils; a switching element for controlling a path through which a current for driving at least one of the coils flows; and a driving pulse generator which outputs a driving pulse to the switching element. The driving pulse generator outputs the driving pulse to the switching element so that the current for driving at least one of the coils flows through one path.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: April 28, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Yuta Saito
  • Patent number: 10637383
    Abstract: A system and method is provided to monitor wear on a power factor correction capacitor in a motor system. The system and method obtains a baseline inductance angle, reactive power or power factor corresponding to a baseline power factor correction by the capacitor in the circuit; monitors a current supplied to the motor at a location upstream of the capacitor; monitors a voltage supplied to the motor, and determines a present inductance angle, reactive power or power factor based on the monitored current and voltage. The present inductance angle, reactive power or power factor corresponds to a present power factor correction by the capacitor. The system and method can then determine when the power factor correction of the capacitor has degraded to an unsatisfactory level based on a change in the inductance angle, reactive power or power factor from the baseline values, and take appropriate action.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: April 28, 2020
    Inventors: Richard K. Weiler, Benjamin W. Edwards, Alan E. Freeman, Kevin M. Jefferies, Julius M. Liptak, Matthew L. White
  • Patent number: 10622859
    Abstract: The invention relates to an electronically commutated electric machine (2) comprising: a rotor (21); an exciting winding (6) that is located at the rotor (21) in order to generate or alter a direct magnetic field in the rotor (21); a stator (22) comprising a three- or multi-phase stator winding (23) with phases that can be controlled via phase lines (8). The exciting winding (6) is connected to the stator winding (23).
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: April 14, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Martin Neuburger, Kurt Reutlinger
  • Patent number: 10608569
    Abstract: A control device of an AC rotating electrical machine includes: a midpoint potential detection unit 12 that detects, for respective phases, midpoint potentials 43, 44, 45 of upper switching elements 41 and lower switching elements 42 of an inverter circuit 20; a phase current detection unit 23 that detects a phase current of each phase of an AC rotating electrical machine 3; and a CPU 11 that calculates a current estimated value Idc of DC current that is input from a DC power supply 2 to the inverter circuit 20, on the basis of the detected midpoint potential of each phase and the phase current of each phase.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: March 31, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daisuke Matsumuro, Keiichi Enoki, Yoshimasa Nishijima, Masutaka Watanabe, Shingo Harada, Yasukazu Murata