Regenerative Patents (Class 318/376)
  • Patent number: 10836265
    Abstract: A vehicle has a brake device with a friction brake unit, an electrical brake unit and a brake control device. In order to provide a vehicle having a reliable and structurally simple brake device, the friction brake unit has brake components made of a composite material and the brake control device includes a monitoring device for monitoring a brake operation performed by the electrical brake unit.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 17, 2020
    Assignee: Siemens Mobility GmbH
    Inventor: Martin Glinka
  • Patent number: 10811898
    Abstract: An uninterruptible power supply device includes: an inverter configured to convert AC power from an AC power supply into DC power and output the DC power to a DC bus; a converter configured to convert the DC power received from the DC bus into AC power and supply the AC power to a load; a bidirectional chopper configured to transmit and receive DC power between the DC bus and a storage battery; a bidirectional chopper configured to transmit and receive DC power between the DC bus and a lithium ion battery; a controller configured to cause the storage battery to be charged during normal operation, and to be discharged during power failure; and a controller configured to cause the lithium ion battery to be charged when the load is performing a regenerative operation, and to be discharged when the load is performing a power running operation.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 20, 2020
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Masaru Toyoda
  • Patent number: 10784704
    Abstract: Disclosed is an on-board charging system in which, when a plurality of charging circuits is connected in parallel between input and output terminals, operation timings of switching circuits in the respective charging circuits are interlocked to minimize ripples of an input alternating current. The on-board charging system includes: a plurality of charging circuits configured to each have a power factor correction circuit portion for correcting a power factor of alternating current input power by pulse width modulation control of a switching element and to be connected in parallel with each other between an input terminal of the AC input power and an output terminal connected to an object to be charged; and a controller configured to interlock the switching elements to generate a PWM control signal for performing PWM control.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: September 22, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hui Sung Jang, Dong Gyun Woo, Hyun Wook Seong
  • Patent number: 10773781
    Abstract: A paddle assistance and propulsion system for use with personal watercraft is disclosed. The paddle assistance and propulsion system may include different mounting techniques that allow a propulsion device (e.g., a motor) to be coupled to various types of personal watercraft. Some mounting techniques may include the use of magnets to couple a motor-side mount to a boat-side mount. The paddle assistance and propulsion system may also utilize a variety of sensors in combination with control systems to provide various types of paddle assistance and different types of paddle assistance modes for the user of the personal watercraft.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: September 15, 2020
    Assignee: Detekt Biomedical, LLC.
    Inventors: Damon Vincent Borich, Karen Borich, Andrea Grbavac, Zwckxally Obregon
  • Patent number: 10730314
    Abstract: A printer that performs character printing by driving a character printing section, the printer including a character printing section driving element that electromechanically converts drive power, a switch that switches between states of whether or not to supply the drive power, a reverse voltage regeneration circuit that regenerates a reverse voltage generated by electromechanical conversion, and a circuit board on which the reverse voltage regeneration circuit and the switch are mounted, wherein the reverse voltage regeneration circuit has a first reverse voltage regeneration circuit and a second reverse voltage regeneration circuit, the first reverse voltage regeneration circuit has a first smoothing coil, and the second reverse voltage regeneration circuit has a second smoothing coil, and the switch is mounted on a board surface of the circuit board so as to be disposed between the first smoothing coil and the second smoothing coil.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 4, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Hideaki Yoshigai
  • Patent number: 10703462
    Abstract: A method for braking a motor in a high lift system of an aircraft, the high lift system comprising a central power drive unit for moving high lift surfaces arranged at a wing through providing rotational power by means of a transmission shaft to a plurality of drive stations operably coupled with the high lift surfaces; which power drive unit is operatively coupled to a controller and comprises at least one electric motor coupled therewith. The method includes determining a braking requirement for the at least one electric motor, measuring at least one of a current command to the motor and a current speed and direction of the at least one electric motor, based on the braking requirement, applying a braking command to the at least one electric motor, and reducing the braking command as the at least one electric motor comes to rest.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: July 7, 2020
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Erik Harrington, Victor Barger, Adam M. Finney, Timothy Michael Mayer, Yuniya S. Bishop, Adam Crandall, Darrell E. Ankney, Eugene W. Dolfi, Michael C. Harke, Christian Miller, Artemio Pérez
  • Patent number: 10651765
    Abstract: A motor controller includes: a velocity calculation unit for obtaining an angle ?(n), which shows a rotation position, and an angular velocity ?(n) of a rotor at a time point n; a compensation amount calculation unit for calculating a compensation angle ?? by which the rotor advances from the time point n to a (n+1)th control cycle (a control cycle starting from a time point n+1), based on an angular acceleration a(n) of the rotor, an angular velocity ?(n) of the rotor at the time point n and a time length T of the control cycle; and a PWM inverter for controlling a voltage to be applied to a coil such that a rotating magnetic field based on a rotation position of the rotor advanced by the compensation angle ?? from the rotation position of the rotor at the time point n is formed in the (n+1)th control cycle.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: May 12, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Daichi Suzuki, Yuta Tachibana, Hiroyuki Yoshikawa, Yasuhiro Koide
  • Patent number: 10569430
    Abstract: An apparatus including a frame, a first position sensor, a drive and a chamber. The frame has at least three members including at least two links forming a movable arm and an end effector. The end effector and the links are connected by movable joints. The end effector is configured to support a substrate thereon. The first position sensor is on the frame proximate a first one of the joints. The first position sensor is configured to sense a position of two of the members relative to each other. The drive is connected to the frame. The drive is configured to move the movable arm. The frame is located in the chamber, and the drive extends through a wall in the chamber.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 25, 2020
    Assignee: Persimmon Technologies Corporation
    Inventors: Martin Hosek, Tuan Ha, Christopher Hofmeister
  • Patent number: 10560042
    Abstract: A turbocompressor apparatus includes a turbocompressor including a compressor motor, a lubrication pump including a pump motor, a converter that performs electric power conversion between a voltage of a power source and a direct-current voltage of a direct-current voltage unit in a case where electric power is being supplied from the power source to the turbocompressor apparatus; a first inverter that performs electric power conversion between the direct-current voltage and a first alternating-current voltage vector of the compressor motor; and a second inverter that performs electric power conversion between the direct-current voltage and a second alternating-current voltage vector of the pump motor. The compressor motor generates regenerative electric power by regenerative driving and the pump motor is driven by the regenerative electric power in a case where supply of electric power from the power source to the converter is being cut off.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: February 11, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tetsuya Matsuyama, Junki Yoshimoto
  • Patent number: 10511233
    Abstract: The voltage detection circuit (33) is a voltage divider circuit including a plurality of resistances (34a to 34c and 35a to 35c) and detects voltages (Vac1, Vac2) correlating with a power source voltage (Vin) of the AC power source (91). The calculation unit (40) obtains the across voltage (VL) of the reactor (29) using detection results (Vac1, Vac2) of the voltage detection circuit (33), and estimates a power source current (Iin) based on the across voltage (VL). The calculation unit (40) corrects gains of the detection results (Vac1, Vac2) so that a value correlating with an average value per predetermined time period of the estimated power source current (Iin) matches a value correlating with an average value per the predetermined time period of a current (Iinv) downstream of the capacitor (26), and obtains the across voltage (VL) using the detection results (Vac1, Vac2).
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: December 17, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takurou Ogawa, Eiji Tooyama, Akiko Sera, Morimitsu Sekimoto
  • Patent number: 10494224
    Abstract: A apparatus and method for operating an electromagnetic elevator brake during a mains power disruption or emergency stop includes the steps of providing an uninterruptible power supply in a power circuit arranged in parallel to a brake coil and repeatedly opening and closing the power circuit during the mains power disruption or emergency stop. In comparison to the conventional braking during power disruption, the periodic or staggered braking provided by repeatedly opening and closing the power circuit greatly extends the time taken to bring the elevator to a halt. Accordingly, passengers will feel less discomfort when the elevator is braked automatically during power disruption.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 3, 2019
    Assignee: INVENTIO AG
    Inventor: Om Prakash
  • Patent number: 10348224
    Abstract: A motor position sensor device comprises a motor position detection unit being configured to detect a position of a rotor of an electric motor. The motor position sensor device comprises a selection circuit being configured to couple a first supply terminal to provide a supply voltage to the motor position detection unit, if a level of the supply voltage is above the threshold level, and to couple a second supply terminal to provide an auxiliary supply voltage to the motor position detection unit, if the level of the supply voltage is below the threshold level and the level of the auxiliary supply voltage is above the threshold level.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: July 9, 2019
    Assignee: ams AG
    Inventors: Roland Einspieler, Christian Stockreiter
  • Patent number: 10307841
    Abstract: A power tool includes: a brushless motor; a rectifier circuit; a smoothing circuit; an inverter; a controller; an operating part; and a switch. The switch is rendered ON in accordance with an operation performed in the operating part by a user to allow power to be supplied to the inverter circuit by the rectifier circuit through the smoothing circuit and rendered OFF in accordance with release of the operation by the user to interrupt the inverter circuit from the rectifier circuit to halt supplying the power to the inverter circuit. The smoothing circuit includes a first capacitor and a second capacitor connected in parallel. The controller is configured to control the switching operations of the inverter circuit to drive the brushless motor in accordance with a signal inputted in accordance with the operation performed in the operating part by the user.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: June 4, 2019
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Takuya Yoshinari, Kazuhiko Funabashi, Toshiaki Koizumi
  • Patent number: 10293808
    Abstract: A system for increasing fuel efficiency of a vehicle includes a power source designed to convert a fuel into power and an input device designed to receive user input corresponding to a request to operate in a constant power mode. The system further includes at least one sensor designed to detect vehicle data corresponding to a current power of the power source and a memory designed to store an upper power threshold and a lower power threshold. The system further includes an electronic control unit (ECU) that is designed to determine the current power of the power source based on the detected vehicle data and to control the power source such that the current power remains between the upper power threshold and the lower power threshold when the user input corresponds to the request to operate in the constant power mode.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 21, 2019
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventor: Geoffrey D. Gaither
  • Patent number: 10246294
    Abstract: A regenerative elevator drive device, a method for buffering energy of a regenerative elevator drive device, and an elevator system are disclosed. The regenerative elevator drive device may include an inverter having a plurality of power components and a converter having a plurality of power components. The regenerative drive may further include a direct current (DC) link bridging the inverter and the converter, the DC link including a first capacitor bridging the inverter and the converter and a second capacitor in parallel with the first capacitor. The regenerative elevator drive device may be a multi-level regenerative drive device.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: April 2, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Ismail Agirman, Steven M. Millett, HanJong Kim
  • Patent number: 10189355
    Abstract: The invention relates to a safety device (4) for a contactor (2) connected between a secondary battery and an electrical power network, in particular of a motor vehicle that can be driven electrically, comprising at least one electronic evaluating unit (6), which can be connected to at least one electrical component of the secondary battery by means of a communication connection (5), and at least one safety switch (8), which can be controlled by means of the electronic evaluating unit (6) and which can be arranged in an electrical control circuit (7) of the contactor (2), wherein the electronic evaluating unit (6) is designed to receive at least one component-specific piece of actual information (12) from the electrical component via the communication connection (5), to compare the received piece of actual information (12) with at least one piece of target information stored in the electronic evaluating unit (6), and to control the safety switch (8) in dependence on a result of the comparison in such a way th
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: January 29, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Robert Thomas, Manuel Roth
  • Patent number: 10160347
    Abstract: The disclosure concerns an operating method for an electric motor vehicle with at least one electrical machine as the traction motor and with an operating element for preselecting a coasting function, wherein, if the coasting function is preselected by the driver, under predetermined conditions the operating mode is automatically changed into a coasting mode, in which neither a drive torque nor a drag torque is exerted on the wheels of the vehicle. According to the disclosure, the predetermined conditions include the conditions that the gas pedal is in a neutral position and that the current speed of the vehicle is at or is greater than a preset value. Under the predetermined conditions the operating mode is automatically changed into the coasting mode by bringing the drive train of the vehicle into a state in which the at least one electrical machine is consuming no electrical energy.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: December 25, 2018
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Arnulf Sponheimer, Brian Gillespey
  • Patent number: 10164523
    Abstract: In a boost chopper circuit, a withstand voltage of at least one device of a switching device circuit is lower than a withstand voltage of a capacitor circuit connected in series to a backflow prevention diode circuit between opposite ends of the switching device circuit.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: December 25, 2018
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Motoyoshi Kubouchi, Hao Hou
  • Patent number: 10141870
    Abstract: A motor capacitor verification unit includes a capacitor selection section coupled to an electric motor employing a motor capacitor for its operation that connects the motor capacitor for verification testing. Also included is a capacitor testing section coupled to the capacitor selection section that evaluates the motor capacitor for operation with the electric motor. Further included is an AC power control section coupled to the capacitor testing section and that only permits application of an AC operating voltage to the electric motor and the motor capacitor after a successful motor capacitor verification as required for electric motor operation. An electric motor operating system, an HVAC operating system and methods of operating an electric motor, retrofitting a motor capacitor verification unit to an electric motor and manufacturing a motor capacitor verification unit for use with an electric motor are also provided.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: November 27, 2018
    Assignee: MJG INNOVATIONS, LLC
    Inventors: Brandon Monroe, Denny English, Mike Pearson
  • Patent number: 10077033
    Abstract: Disclosed is a computer-implemented method for determining dynamic braking data for use in a braking model of at least one train, the method including: (a) determining at least one initial safety factor; (b) determining at least one dynamic braking adjustment factor based at least partially on (i) the expected dynamic braking force, and (ii) specified retarding forces of the train; and (c) determining at least one new safety factor based at least partially on the at least one initial safety factor and the at least one dynamic braking adjustment factor. Also disclosed are braking systems including dynamic braking for a train having at least one locomotive.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: September 18, 2018
    Assignee: Wabtec Holding Corp.
    Inventors: James A. Oswald, Dennis W. Sutherland
  • Patent number: 10027272
    Abstract: A motor control device which controls a motor in a machine tool or an industrial machine includes: a power outage detection unit that detects a power outage of a power source which supplies electric power for driving the motor; a DC link voltage detection unit that detects a value of a DC link voltage applied to an amplifier which drives the motor; a comparison unit which compares the value of the DC link voltage with a predetermined threshold value; a torque command generation unit which generates a torque command for driving the motor; a torque limit value setting unit which sets a torque limit value in accordance with a result of a comparison by the comparison unit; and a torque command limit unit which limits the torque command to the torque limit value when a power outage is detected by the power outage detection unit.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 17, 2018
    Assignee: FANUC CORPORATION
    Inventors: Satoshi Ikai, Yuuki Kumamoto
  • Patent number: 9962315
    Abstract: Disclosed is an electrically-driven skin stimulation module for forming a relatively high potential difference between power terminals of different polarities without a voltage booster circuit to make a lot of current flow through human skin such that function of iontophoresis may be remarkably improved.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: May 8, 2018
    Assignees: AMOREPACIFIC CORPORATION, SENTRONIX CO., LTD.
    Inventors: Chang-man Park, Chil Sung Lee, Changkeun Lee, Taehong Shin, Seunghwan Yi, Cheonghwan Hwang, Wooram Park, Kyung Shin Park, Jeongmin Lee, Byungyoung Kang
  • Patent number: 9941806
    Abstract: The invention relates to a method for modulating the boost converter operating mode of a push-pull converter having a low-voltage-side circuit, having a first low-voltage-side switching device and a second low-voltage-side switching device; having a transformer having a high-voltage-side winding; and having a high-voltage-side circuit, which is configured as a full-bridge rectifier, having a first and a second rectification element which form a first half-bridge and a third and a fourth rectification element which form a second half-bridge; wherein the method comprises the steps of closing the first low-voltage-side switching device while simultaneously short-circuiting the high-voltage-side winding via the first or the fourth rectification element during a first time segment; opening the rectification element used for short-circuiting the high-voltage-side winding during a second time segment; opening the first low-voltage-side switching device and closing the second low-voltage-side switching device while s
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: April 10, 2018
    Assignee: Robert Bosch GmbH
    Inventor: David Tastekin
  • Patent number: 9922528
    Abstract: A fitness equipment unit has a controller that actuates a light between different states in response to service conditions. In one implementation, actuation of the light is based upon a combination of at least two of: a mileage parameter of the fitness equipment unit, a sensed electrical current of the fitness equipment unit, a sensed temperature from the fitness equipment unit and a sensed position of a portion of the fitness equipment unit. In another implementation, actuation of the light is based upon a combination of the first and second service conditions selected from a group consisting of: a connection error service condition; a part wear service condition; a motor/actuator error service condition; a sensor error service condition; a processor error service condition; and a power supply error service condition and further based upon a prioritization of different severity levels of the first and second service conditions.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: March 20, 2018
    Assignee: Precor Incorporation
    Inventors: Daniel L. M. Munro, Mark Albright, Tormay J Brown, Doug Durnford, Gregory B May, Blakely T Pennington, Cynthia Tremblay, Richard W Whitbeck
  • Patent number: 9898918
    Abstract: Belt wear of a treadmill is monitored. In one implementation, samples of electric current draw of a treadmill at different speeds of the treadmill belt of the treadmill are received. A value of each sample is differently weighted based on a speed of the treadmill belt at which the value of each sample was obtained. A belt wear notification is output based on the different weighted values of the samples.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: February 20, 2018
    Assignee: Precor Incorporated
    Inventors: Daniel L. M. Munro, Mark Albright, Tormay J Brown, Doug Durnford, Gregory B May, Blakely T Pennington, Cynthia Tremblay, Richard W Whitbeck
  • Patent number: 9893674
    Abstract: A motor control device includes: a power failure detection unit that detects a power failure; a voltage detection unit that detects a DC link voltage; a switch unit which connects a motor to an amplifier or a resistance; a voltage comparison unit which compares a DC link voltage with a threshold value; a limit value setting unit which sets a torque limit value in accordance with a result of comparison; a torque command limit unit which limits a torque command when a power failure is detected; a prediction value calculation unit which calculates, using an angular velocity, a torque prediction value of the motor when the motor is connected to the resistance; and a torque comparison unit which compares the torque limit value with the torque prediction value, in which in accordance with a result of comparison, the switch unit connects the motor to the amplifier or the resistance.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: February 13, 2018
    Assignee: FANUC CORPORATION
    Inventors: Satoshi Ikai, Yuuki Kumamoto
  • Patent number: 9882463
    Abstract: A method of identifying a faulty sub-module of a chain-link converter is provided, wherein the chain-link converter includes a plurality of sub-modules with each sub-module including at least one switching element and an energy storage device which together are selectively operable to provide a voltage source. The method comprises the steps of: measuring a switching characteristic of each sub-module of the chain-link converter; establishing a switching characteristic signature of the chain-link converter; and identifying the or each sub-module with a switching characteristic that deviates from the switching characteristic signature as being a faulty sub-module.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: January 30, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Timothy James Stott, Francisco Jose Moreno Muñoz, Philip Robin Couch
  • Patent number: 9871462
    Abstract: A regenerative variable frequency drive includes an active converter connected to a DC bus that is connected to a first inverter that converts DC power to variable frequency, three phase AC power, and variable frequency, three phase AC power to DC power, and to a second inverter that converts DC power to three phase AC sine wave power. The converter converts single phase AC power to DC power and DC power to single phase AC power, and maintains a selected voltage on the DC bus. The converter has an active rectifier and a controller that drives the rectifier with a pulse width modulation according to a hybrid voltage switching scheme that switches the rectifier according to a unipolar voltage switching scheme through most of each cycle and switches the rectifier according to a bipolar voltage switching scheme around each zero crossing.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: January 16, 2018
    Assignee: Phase Technologies, LLC
    Inventors: Peda V. Medagam, Theodore Clifton Pettyjohn, Jack Yang
  • Patent number: 9853333
    Abstract: A temperature sensor is described for detecting a temperature of a battery cell. The temperature sensor has a first electrical conductor having a first end for connecting the first conductor to an element of the battery cell and having a second end for connecting the first conductor to a first input of a measuring device and a second electrical conductor having a first end for connecting the second conductor to the element of the battery cell and having a second end for connecting the second conductor to a second input of the measuring device.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: December 26, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventor: Reiner Ramsayer
  • Patent number: 9811099
    Abstract: This invention relates to a system for reducing frequency and/or voltage variations in the power distribution system. The system comprises a power control unit being connected to at least one power generator and at least one consumer, power control system being adapted to monitor the measured load in the system from said at least one power generator and the power consumption from said at least one consumer, and a prediction allocating system for adapted to receive information from, each consumer related to the planned or predicted power consumption and to calculate expected power consumption of the system, and feeding the allocated power consumption to a motor generator system (MGS) controller.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: November 7, 2017
    Assignee: Kongsberg Maritime AS
    Inventors: Eirik Mathiesen, Bjørnar Realfsen, Ole Henrik Jørgensen, Petter Faugstad Johannessen
  • Patent number: 9809214
    Abstract: A vehicle includes an engine and at least one controller. A first engine cycling command based on route information and a second engine cycling command independent of route information are generated. The engine transitions state according to the first engine cycling command when the second engine cycling command permits the transition. When a first engine cycling profile based on route information includes at least a number of engine cycles, the engine is cycled according to the first engine cycling profile, otherwise, the engine is cycled according to an engine cycling state derived independent of route information. The vehicle includes a traction battery. A state of charge of the traction battery is controlled according to a target state of charge that is derived using route information and a base battery power reference that is independent of route information.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: November 7, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Wei Liang, Yanan Zhao, Ming Lang Kuang
  • Patent number: 9745174
    Abstract: A quay crane including auxiliary equipment, which is equipment other than main equipment for performing main operations of the quay crane. The auxiliary equipment includes: a main equipment cooling device for cooling the main equipment; a loading and unloading lighting device for lighting a loading and unloading operation range of the main equipment; a room cooling device for cooling a room; and a room lighting device for lighting the room. If an operating condition of the main equipment or a room condition satisfies a predetermined electric power reduction condition while the quay crane is in operation, the auxiliary equipment that is keeping the operating condition of the main equipment or the room condition is put into a power saving mode in which the auxiliary equipment consumes less electric power than in a normal operation.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 29, 2017
    Assignee: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.
    Inventors: Satoru Ogawa, Hiroshi Kasai, Sho Meno
  • Patent number: 9742332
    Abstract: Controller is provided for electromechanical actuator such as an electric brake actuator having a motor driven in response to motor drive signal generated by controller. Controller includes first current limiter and second current limiter. First current limiter limits current command to maximum current limit in response to detecting that current command at least one of exceeds maximum current limit setpoint or is less than minimum current limit setpoint. Second current limiter further limits current and to limited current command in response to detecting that current command exceeds topper current detection limit for specified time duration. Controller may further include intermediate current limiter between first and second current limiters for further limiting current command from first current limiter in response to detecting current command from first current limiter at least one of exceeds maximum power limit setpoint or is less than minimum power limit setpoint.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 22, 2017
    Assignee: GOODRICH CORPORATION
    Inventors: Martin Krucinski, Michael Abbott, Richard A. Poisson, Haftay Hailu, Thordur Runolfsson
  • Patent number: 9728996
    Abstract: A high efficiency charging apparatus, includes a power supply which is a source for supplying electricity for charging; a speed setting unit setting an oscillating frequency and outputting an electrical self-oscillating signal having a frequency corresponding to the oscillating frequency; a switching unit having a plurality of switches which are driven by the electrical self-oscillating signal supplied from the speed setting unit; and a power transmitting unit supplying a current from the power supply to a capacitor multiple times according to a drive state of the plurality of switches of the switching unit and discharging the current charged in the capacitor at one time to supply the discharged current to the battery. The charging apparatus improves charging efficiency and reduces a charging time of a lead or nickel battery used in a vehicle or the like.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 8, 2017
    Assignee: Run Energy
    Inventor: Suk-ho Jang
  • Patent number: 9716425
    Abstract: A multilevel converter converting between AC and DC includes a phase arm with a number of cells between a DC pole and an AC terminal, the cells include at least one hybrid full bridge cell including a first cell connection terminal for coupling to the DC pole, a second cell connection terminal for coupling to the AC terminal, an energy storage element having a positive and a negative end, a first group of series connected semiconducting units in parallel with the energy storage element, where a junction between these forms one cell connection terminal, and a second group of series connected semiconducting units in parallel with the energy storage element and including a third semiconducting unit and a fourth semiconducting unit consisting of a number of unidirectional conducting elements including at least one unidirectional conducting element, where a junction between these forms a further cell connection terminal.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: July 25, 2017
    Assignee: ABB SCHWEIZ AG
    Inventors: Alireza Nami, Liwei Wang
  • Patent number: 9634583
    Abstract: A motor driven appliance in one aspect of embodiments of the present disclosure comprises a motor, a first switching element, a second switching element, an operation unit, a control unit, and a monitoring unit. The first and second switching elements are provided on a current path from a power source to the motor, and are connected in series to each other. The monitoring unit monitors an operating state of a protection function by the control unit, and, when the protection function is activated, outputs an OFF signal for turning off the second switching element.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: April 25, 2017
    Assignee: MAKITA CORPORATION
    Inventor: Hidekazu Suda
  • Patent number: 9630504
    Abstract: A method is provided for estimating distance to empty (DTE) for a vehicle. The method includes a controller which may, in response to detecting a change in a vehicle kinetic energy level due to vehicle acceleration or deceleration during a drive cycle, output a DTE modified by a predicted DTE range adjustment selected to include a kinetic energy compensation input corresponding to and correcting for the change in the vehicle kinetic energy level. An electrified vehicle having an energy conversion device, an energy source, one or more brake systems, and at least one controller is also provided. The controller may be programmed to, in response to detecting a change in a vehicle kinetic energy level due to vehicle acceleration or deceleration during a drive cycle, output a distance to empty to the interface based on conditions of vehicle components and the energy source compensated by a kinetic energy compensation input.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: April 25, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Fling Tseng, Sangeetha Sangameswaran, Jason Meyer
  • Patent number: 9604284
    Abstract: A portable drilling machine wherein when a shorting failure occurs in a circuit part connected to a driving motor, this state is reliably detected and a false start of the motor is reliably prevented. A diving motor control circuit in the portable drilling machine includes a main control section; a triac and a relay which are connected to power supply terminals in series with the driving motor; peripheral circuits (a triac control circuit, a relay control circuit, a triac inspection and determination section, a bypass resistor, etc.) which are related to the triac and relay; and a current measurement section for measuring current flowing in the driving motor.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: March 28, 2017
    Assignee: NITTO KOHKI CO., LTD.
    Inventor: Kenji Ohtsuka
  • Patent number: 9541916
    Abstract: A motor control apparatus includes a error calculation unit which calculates a error between a first position detection value of a movable part and a second position detection value of a driven part, a storage unit which stores the errors when the movable part engages with the driven part in a first and second drive direction, as a first initial error and a second initial error, respectively, and a compensation calculation unit which calculates the amount of compensation to correct backlash and an elastic deformation. The compensation calculation unit calculates a command error based on the first initial error and the second initial error and a predetermined constant which is larger than 0 and not greater than 1 and calculates the amount of compensation by subtracting the current error calculated by the error calculation unit from the command error.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: January 10, 2017
    Assignee: FANUC CORPORATION
    Inventor: Tsutomu Nakamura
  • Patent number: 9533602
    Abstract: An electronic control device on a vehicle having a shift transmission operable by a driver includes: a battery; a motor generator; and a three-phase inverter executing an electricity conversion between the battery and the motor generator bi-directionally; a detector detecting a shift down operation; an obtaining device obtaining a negative torque corresponding to the shift down operation; a determination device determining whether the battery is chargeable; and a controller controlling the three-phase inverter to generate the negative torque at the motor generator. When the detector detects the shift down operation, and the determination device determines that the battery is not chargeable, the controller outputs a switching signal to all of three upper arms or all of three lower arms to turn on simultaneously, and outputs a shutdown signal to all of three upper arms or all of three lower arms with executing a PWM control of the shutdown signal.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: January 3, 2017
    Assignee: DENSO CORPORATION
    Inventor: Hirotaka Ito
  • Patent number: 9515581
    Abstract: Provided is a motor control device that includes an inverter circuit that includes a plurality of P-side switching elements and a plurality of N-side switching elements and drives a motor via a plurality of motor terminals; a first dynamic brake that brakes the motor by turning on all the phases of the plurality of P-side switching elements or turning on all the phases of the plurality of N-side switching elements; a second dynamic brake that brakes the motor by connecting dynamic brake resistors between the motor terminals; and a control unit that switches, according to the motor speed, between the first dynamic brake and the second dynamic brake, which are the dynamic brakes that brake the motor.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 6, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kenji Ogawa
  • Patent number: 9470264
    Abstract: There is provided a magnetic bearing drive circuit driven from a pair of Direct Current (DC) link voltage rails, said magnetic bearing drive circuit having at least one amplifier providing an output PWM drive signal for driving a magnetic bearing winding, said output PWM drive signal being provided to the magnetic bearing winding through a plurality of drive signal rails, said magnetic bearing drive circuit comprising a pair of voltage offset devices coupled to the DC link voltage rails and arranged to provide a pair of offset catcher voltage rails from the DC link voltage rails, and primary clamping means coupled between each offset catcher voltage rail and a respective one of the drive signal rails.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: October 18, 2016
    Assignee: WAUKESHA BEARINGS LIMITED
    Inventor: Derek Thomas Wright
  • Patent number: 9469200
    Abstract: An automotive vehicle may include an electric machine and a controller. The electric machine may be configured to provide and receive mechanical torque. The controller may be configured to determine forward or backward movement of the vehicle based on the provided or received mechanical torque and a mechanical power of the electric machine.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 18, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Bader M. Badreddine, Ming Lang Kuang
  • Patent number: 9430920
    Abstract: Belt wear of a treadmill is determined. Samples of electric current draw of a treadmill at different speeds of the treadmill belt of the treadmill are received. A value of each sample is differently weighted based on a speed of the treadmill belt at which the value of each sample was obtained. A belt wear notification is output based on the different weighted values of the samples.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: August 30, 2016
    Assignee: Precor Incorporated
    Inventors: Daniel L. M. Munro, Mark Albright, Tormay J Brown, Doug Durnford, Gregory B May, Blakely T Pennington, Cynthia Tremblay, Richard W Whitbeck
  • Patent number: 9308824
    Abstract: A method of operating a brake-retract system during a regenerative braking event begins with monitoring an amount of regenerative braking achieved. A set point threshold is linearly ramped from a first threshold to a max regeneration capacity if the amount of regenerative braking achieved exceeds a second threshold. The second threshold is less than the first threshold, and the first threshold is less than the max regeneration capacity. The max regeneration capacity is representative of a maximum amount of regenerative braking capable of being produced. A friction element is transitioned from a first, retracted-state to a second, ready-state if the amount of regenerative braking achieved exceeds the set point threshold.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: April 12, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Goro Tamai, Paul A. Stanowski
  • Patent number: 9281765
    Abstract: A motor deceleration method for a motor driving system is provided. The motor driving system outputs a driving signal containing a voltage value, a current value and a frequency value for driving a motor. When a deceleration of the motor is launched, the descent speeds of the voltage value and the frequency value are controlled according to a preset deceleration time period. Then, a voltage compensation value is generated according to a result of comparing the current value with a preset current level, and the voltage value is increased according to the voltage compensation value, so that the current value is increased to the preset current level. According to a frequency compensation value, the current value is increased to and maintained at the preset current level. Finally, the rotating speed of the motor is gradually decreased to a preset speed.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: March 8, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Cheng-Te Chen, Chien-Yu Chi, Ting-Chung Hsieh
  • Patent number: 9272634
    Abstract: Hybrid-electric and pure electric vehicles include a traction battery. During vehicle operation, impedance parameters of the traction battery may be estimated. To ensure accurate estimation results, certain persistent excitation criteria may be met. These conditions may not always be met, in which case active excitation of the traction battery power demand may be initiated. The invocation of active battery excitation may be based on a variability of estimates of a battery parameter and an age of a most recent estimate of the battery parameter. As the variability of the parameter estimates increases, the time between active battery excitation requests may decrease.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: March 1, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Yonghua Li, Hai Yu
  • Patent number: 9231501
    Abstract: An energy retrieving device includes a first rectifier circuit, a direct current (DC) link circuit, a second rectifier circuit, an energy retrieving unit, a motor controller, and a micro control unit (MCU). The MCU includes an energy retrieving control module, to control the energy retrieving unit to work according to control of a processing module. The processing module detects whether a motor deceleration signal is generated by the motor, and controls the energy retrieving control module to make the energy retrieving unit retrieve power when the motor deceleration signal is generated by the motor.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: January 5, 2016
    Assignee: FOXNUM TECHNOLOGY CO., LTD.
    Inventors: Ching-Hsiung Mao, Chih-Jung Liu
  • Patent number: 9205841
    Abstract: A method for determining a road slope in an electric vehicle including determining the energy consumed or generated by a propulsion motor of the electric vehicle, determining the speed of the electric vehicle, and computing the road slope using samples of energy and speed of the electric vehicle. The method further including determining an optimal speed at which the vehicle should be driven for achieving maximum utility of energy.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: December 8, 2015
    Inventor: Joel Robert Williams
  • Patent number: 9166514
    Abstract: A motor control apparatus includes a rectifier for rectifying AC power to output DC power; an inverter for performing power interconversion of DC power of a DC link and AC power being driving power or regenerative power of a motor by being connected to the DC link being a DC output side of the rectifier; and at least two resistance discharge units each for performing resistance discharge of DC power of the DC link, the resistance discharge units each being connected to the DC link, in which each resistance discharge unit starts a resistance discharge operation for performing resistance discharge of DC power of the DC link at a DC voltage value in the DC link exceeding a first threshold value and stops the resistance discharge operation at a DC voltage value in the DC link smaller than a second threshold value below the first threshold value.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: October 20, 2015
    Assignee: FANUC CORPORATION
    Inventors: Masakazu Niwa, Kenta Yamamoto