Patents Examined by Bickey Dhakal
  • Patent number: 10541638
    Abstract: A control apparatus for controlling an electrical unit driven by AC power, the control apparatus comprising a pair of switching elements configured to convert power from a power source into AC power and supply the AC power to the electrical unit. The control apparatus comprises the steps of generating a PWM signal on the basis of the duty command value calculated by the calculation unit and a carrier signal for performing the PWM control; controlling the AC power supplied to the electrical unit by switching a connection state of the switching element on the basis of the PWM signal generated by the generating unit; determining whether the carrier signal increases or decreases; and adjusting a switching timing of the switching element by correcting the duty command value calculated by the calculation unit on the basis of whether the carrier signal is increasing or decreasing determined by the determination unit.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: January 21, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Mitsuhiro Shouji, Hiromichi Kawamura
  • Patent number: 10537187
    Abstract: An augmented refrigerated display unit is provided. The refrigerated display unit includes a door being hingedly attached to the refrigerated display unit, an augmentation drive operatively connected to a hinge of the door for applying an assistive force to the door, and an initiation sensor configured to detect an application of a manual force to the door. The augmentation drive applies an assistive opening force to the door in response to detection by the initiation sensor of an application of the manual force to open the door, a holding force in response to a detection of the door reaching an open position, and an assistive closing force to the door in response to a detection of the manual force being applied to close the door.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 21, 2020
    Assignee: Walmart Apollo, LLC
    Inventor: Anthony G. Wind, III
  • Patent number: 10541639
    Abstract: A battery pack and charger system includes a first battery pack having a first set of battery cells and configured to provide only a first operating voltage and a second battery pack having a second set of battery cells and configured to provide the first operating voltage and a second operating voltage that is different from the first operating voltage and a battery pack charger configured to be able to charge the first battery pack and the second battery pack.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 21, 2020
    Assignee: Black & Decker, Inc.
    Inventors: Daniel J. White, Matthew J. Velderman, Andrew E Seman, Jr.
  • Patent number: 10537988
    Abstract: A controller includes a processor that is configured to execute computer-executable instruction so as to control a robot including a movable section and a force detecting section provided in the movable section, wherein the processor is configured to sense that a first portion of a first target object has come into contact with a second target object and then sense that a second portion of the first target object has come into contact with the second target object based on an output from the force detecting section, cause the movable section to move in a first direction, sense that a third portion of the first target object has come into contact with the second target object, store first information in a storage section, and generate data on teaching to the movable section based on the first information.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 21, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Yoshito Miyamoto
  • Patent number: 10540889
    Abstract: A system for enabling both the remote monitoring and receipt of remote change-of-door status commands, via the Internet, of the open or closed status of the garage door. The system includes an encoder generating signal pulses as a function of the motor and garage door movement. A microprocessor processes the signal pulses to generate digital pulses indicative of the open or closed status of the garage door, which status is wirelessly transmitted, via the Internet, for remote monitoring. Change-of-door status commands remotely transmitted, via the Internet, are received by the system to activate a warning and delayed change of door status.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: January 21, 2020
    Assignee: GMI Holdings, Inc.
    Inventors: Tim Ikeler, Leroy G. Krupke, Brent Buescher, Brent Alan Rauscher, Gregory D. Matias, Michael Dragomier
  • Patent number: 10541632
    Abstract: The present invention relates to a circuit arrangement and to a method for sensorless commutation of electronically commutated synchronous machines such as, for example, EC motors, wherein the terminal values at the connection terminals of the synchronous machine are processed by means of a rotor position estimator based on the EMF of the synchronous machine and of a known motor model preferably in a PLL structure for sensorless determination of rotor position information, and said information is used for commutation.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: January 21, 2020
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventor: Fabian Schneider
  • Patent number: 10536105
    Abstract: A power conversion apparatus having a converter, an inverter controlled by inverter controller, and an input power source fluctuation detecting and controlling circuit is proposed. The input power source fluctuation detecting and controlling circuit includes an input power source fluctuation detector and a converter failure detector to detect overcurrent and/or overvoltage of the converter. When both of the input power source fluctuation and the converter failure are detected, the converter is gate blocked, and the inverter continues its operation, and when the DC voltage become lower than a threshold voltage during the converter is gate blocking, the input power source fluctuation detecting and controlling circuit outputs an inverter control changeover flag to the inverter controller for switching a contents of inverter control.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 14, 2020
    Assignee: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Shunsuke Tobayashi, Toshiaki Oka
  • Patent number: 10536104
    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: February 22, 2016
    Date of Patent: January 14, 2020
    Assignee: HITACHI MITSUBISHI HYDRO CORPORATION
    Inventors: Akira Bando, Osamu Nagura
  • Patent number: 10536102
    Abstract: A main controller includes: a d-axis current limiter configured to calculate a d-axis current limiting value with priority, based on a dq-converted current limiting value, and calculate a limited d-axis current command value by clipping the d-axis current command value to be the d-axis current limiting value or less; a q-axis current limiter configured to calculate a q-axis current limiting value, based on the dq-converted current limiting value and the limited d-axis current command value, and calculate a limited q-axis current command value by clipping the q-axis current command value to be the q-axis current limiting value or less; and an inverter controller configured to control motor current, based on the limited d-axis current command value and the limited q-axis current command value.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: January 14, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Kishioka, Susumu Zeniya, Takashi Goto, Daisuke Tanaka, Akiyoshi Takashima, Eiji Iwami
  • Patent number: 10536101
    Abstract: In a MG control device, a standard voltage calculation part calculates a d-axis standard voltage Vd_std and a q-axis standard voltage Vq_std to be supplied to a MG. A first magnetic flux change amount estimation value calculation part calculates a first magnetic flux change amount estimation value ??1 based on a deviation of a specific value from the q axis standard voltage Vq_std, where the specific value is obtained by multiplying a ratio (Vd_std/Vd_real) with a q-axis real voltage Vq_real, where Vd_real represents a d-axis real voltage. A second magnetic flux change amount estimation value calculation part calculates a second magnetic flux change amount estimation value ??2 based on a deviation of the q-axis real voltage Vq_real from the q-axis standard voltage Vq_std. The calculation switching part selects one of ??1 and ??2 based on an operation state of the MG.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: January 14, 2020
    Assignee: DENSO CORPORATION
    Inventors: Takashi Ogawa, Masaki Nishiyama, Mitsuharu Matsuno
  • Patent number: 10535810
    Abstract: A control apparatus controls driving of an oil feeding unit. The oil feeding unit includes a piezoelectric body that deforms in response to a voltage applied thereto, and a reservoir to store lubricating oil. The capacity of the reservoir changes in accordance with deformation of the piezoelectric body so as to discharge lubricating oil from the oil feeding unit. The control apparatus includes N driving circuits 71a to 71n configured to apply voltages to the piezoelectric body (where N is an integer equal to or greater than two). The N driving circuits 71a to 71n are connected in parallel to the piezoelectric body. During oil feeding, the control apparatus uses a predetermined number of the driving circuits selected from the N driving circuits. The predetermined number is smaller than N.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: January 14, 2020
    Assignee: JTEKT CORPORATION
    Inventors: Yoshimichi Higashiyama, Masami Naka, Tsukasa Sakazaki
  • Patent number: 10530223
    Abstract: With respect to servo amplifiers attached to a component mounter, a motor unit of at of a drive mechanism assembled on a mounting head is attached to be exchangeable. A control device of the component mounter switches the servo amplifier from a servo on state to a servo off state before exchange of the motor unit, maintains servo amplifier system power in an on state, initializes an encoder of the motor unit connected to the servo amplifier after the motor unit has been exchanged, and returns the servo amplifier to a servo on state. By this, the servo motor of the exchange motor unit achieves a state in which feedback control can be performed based on detection information of the encoder, and operation of the exchanged motor unit can be started.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: January 7, 2020
    Assignee: FUJI CORPORATION
    Inventor: Masatoshi Fujita
  • Patent number: 10526089
    Abstract: The embodiments of the disclosure discloses an aircraft spraying control device, a method thereof, and a spraying system, relating to the technical field of agricultural plant protection. The aircraft spraying control device comprises a micro-controller, a pump motor, and a nozzle motor; the micro-controller acquires the flight information of the aircraft and the preset pesticide spraying information of the aircraft, and acquires the target rotational speed n of the pump motor according to the flight information of the aircraft, the preset pesticide spraying information of the aircraft, and the pesticide discharging amount K per rotation of the pump motor so as to control the pump motor to rotate at the target rotational speed n of the pump motor so that the pump supplies pesticide to a nozzle. The micro-controller also controls the nozzle to spray.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: January 7, 2020
    Assignee: GUANGZHOU XAIRCRAFT TECHNOLOGY CO., LTD.
    Inventors: Bin Peng, Dengfeng Li
  • Patent number: 10525649
    Abstract: A servo motor controller comprises: a position command generation unit; a position detection unit; a position control unit that generates a velocity command for position control based on a position command and a position FB; a force command generation unit that generates a force command for instructing force to be applied to a subject by a driving target; a force detection unit; a force control unit that generates a velocity command for force control based on the force command and a force FB; a selection unit that selects one of the position control and the force control; and a storage unit that stores a force threshold. The selection unit selects one of the velocity commands for the position control and the force control of a smaller value. If the force FB is smaller than the force threshold, the selection unit selects the velocity command for the position control.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: January 7, 2020
    Assignee: FANUC CORPORATION
    Inventors: Satoshi Ikai, Tsutomu Nakamura, Tomoyuki Aizawa
  • Patent number: 10530229
    Abstract: Various embodiments are described herein for switched reluctance machine configurations. In at least one embodiment, a switched reluctance machine configured according to the teachings herein comprises a stator including a predetermined number of salient stator poles (Ns), a rotor rotatably mounted with respect to the stator, with the rotor comprising a plurality of salient rotor poles, and a plurality of coils provided around the predetermined number of stator poles to form at least one phase of the switched reluctance machine, where the rotor poles and the stator poles are symmetrically disposed, and a number of rotor poles is related to Ns and a number of phases according to: i) (Ns/m)k ceil (mod (k,m)/m) for an odd number of phases, and ii) (Ns/m)k ceil (mod(k,m/2)/m/2) for an even number of phases, where m is the number of phases, and k is a configuration index based on Ns and m.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: January 7, 2020
    Assignee: Enedym Inc.
    Inventors: Berker Bilgin, Ali Emadi
  • Patent number: 10518599
    Abstract: Provided is a damper with which the energy efficiency for attenuating input vibration corresponding to the unsprung resonance frequency and the sprung resonance frequency can be improved. Also provided is a method for manufacturing this damper. In this damper the electrical resonance frequency, as specified by the inductance of an electromagnetic motor and the capacitance of a capacitor, is set within ±20% of the unsprung resonance frequency, thereby enabling the input vibration corresponding to the sprung resonance frequency as well as the input vibration corresponding to the unsprung resonance frequency to be reduced.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: December 31, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventor: Nobuharu Kuriki
  • Patent number: 10523136
    Abstract: Provided are an inverter device, which is capable of preventing a malfunction of the inverter device while reducing the number of interface wirings, and a method of controlling the inverter device. A communication terminal of a communication circuit having a function of communicating to/from a vehicle, an input terminal for a start signal for starting a control circuit, and a signal for holding the control circuit active even when the start signal is changed after the start of the control circuit are used. A drive prohibition signal issued from the vehicle is received through the same terminal as that for the start signal to unify terminals for the start signal and the drive prohibition signal, to thereby reduce the number of interface wirings.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: December 31, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomohiro Kurita, Naruki Suetake, Tatsuki Kowa
  • Patent number: 10520050
    Abstract: A control circuit configured to control an electromechanical brake is provided. The control circuit includes: a switching regulator configured to control a magnitude of voltage applied to a brake coil of the electromechanical brake; wherein said switching regulator includes at least one semiconductor switch, one diode, one capacitor and one inductor; the control circuit is configured such that, in operation, at least one signal from a process sub-system specifies the magnitude of the voltage for the brake coil; and at least one brake applying control signal from a safety sub-system can cause the brake coil voltage to be reduced to a level low enough to apply the brake by opening a switch and each brake applying control signal from the safety sub-system has a corresponding diagnostic feedback signal to the safety sub-system that indicates the state of the corresponding switch. A method and a system are disclosed.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: December 31, 2019
    Assignee: KOLLMORGEN CORPORATION
    Inventors: Robert Pearce, George B. Yundt, Daniel Kouba
  • Patent number: 10520059
    Abstract: A vibration isolator includes: a vibration isolator moving part that suppresses vibration caused by operation of a drive unit moving part; a vibration isolating speed generation unit that generates a vibration isolating command speed on the basis of a target position of the drive unit moving part; a return speed generation unit that generates a return command speed for returning the vibration isolator moving part to an original position; a control speed generation unit that generates a control command speed by adding the vibration isolating command speed generated by the vibration isolating speed generation unit and the return command speed generated by the return speed generation unit; and a vibration isolation control unit that controls the vibration isolator moving part on the basis of the control command speed generated by the control speed generation unit.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: December 31, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Makoto Higashino, Shinya Nagata
  • Patent number: 10520906
    Abstract: The disclosure enables mutual relationships among operation statuses of each motor to be ascertained without using synchronous serial communication between multiple motor control devices. The motor control system is equipped with: a motor driver having a trigger determination part for determining whether or not a trigger condition is satisfied, a trigger notification part for transmitting a trigger notification indicating that the trigger condition is satisfied to motor drivers by asynchronous communication, and a trace result information generation part for causing a storage part to store a trigger data number for identifying operation data when the trigger condition is satisfied; and motor drivers each having a trace result information generation part for causing a storage part to store a slave trigger time at which the trigger notification is received, a trigger data number for identifying operation data corresponding to the slave trigger time, and a master trigger time.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 31, 2019
    Assignee: OMRON Corporation
    Inventors: Daisuke Tamashima, Fumiaki Sato, Takao Ushiyama, Naoya Hashimoto