Battery-fed Motor Systems Patents (Class 318/139)
  • Patent number: 10797330
    Abstract: A system for measuring a stack cell voltage of a fuel cell according to the present invention comprises: a stack voltage measuring unit which measures a stack voltage of a stack cell battery for each channel; a correction variable calculating unit which calculates a correction variable by using the stack voltage value measured by the stack voltage measuring unit; and a stack voltage value correcting unit which corrects the stack voltage measured by the stack voltage measuring unit on driving by using the correction variable.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: October 6, 2020
    Assignee: Hyundai Motor Company
    Inventor: Jeong Kyu Park
  • Patent number: 10790690
    Abstract: A method for controlling charging of a terminal device includes determining whether there is a need to switch from a first charging chip currently charging a battery of the terminal device to a second charging chip waiting to charge the battery, and controlling the first charging chip to stop charging the battery and starting the second charging chip to charge the battery if it is determined that there is the need to switch.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: September 29, 2020
    Assignee: Xiaomi Inc.
    Inventors: Xiaoxing Yang, Hui Du, Linghua Gu
  • Patent number: 10787083
    Abstract: A vehicle includes an electric motor, a storage battery which supplies power to the electric motor, and a power line which configures a power transmission path between the electric motor and the storage battery. The power line is arranged to extend in a front-rear direction of the vehicle along a bottom surface of the vehicle. A part of the power line is covered by a protection member from below with a gap between the power line and the bottom surface. A fixing point of the protection member to the bottom surface is positioned on a front side of the protection member and on an outer side of the protection member in a vehicle width direction.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: September 29, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Seiji Isotani, Yuichiro Ueno, Kenta Watanabe, Hironobu Yamano, Naoki Shibata
  • Patent number: 10783922
    Abstract: An apparatus and associated method that contemplate a data storage disc and a motor supporting the disc in rotation. Control circuitry operates to spin up the disc drive by accelerating the motor to a steady state speed by: beginning the spin up by energizing the motor with a primary power; comparing an amount of auxiliary power that is available from a battery to a predefined threshold; and before the motor is accelerated to the steady state speed and if the threshold comparison is favorable, then boosting the primary power by discharging the battery for a predetermined boost interval.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: September 22, 2020
    Assignee: Seagate Technology LLC
    Inventor: Alexey Nazarov
  • Patent number: 10778100
    Abstract: A power supply device is equipped with a first boost converter including a first reactor of a first inductance and with a second boost converter including a second reactor of a second inductance that is a different value from the first inductance, as converters that are connected in parallel to each other and configured to transmit electric power with conversion of voltage between a power storage device side and an electric load side. The first boost converter and the second boost converter have different resonance frequencies. This configuration suppresses the occurrence of resonance with a load variable frequency of the electric load.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: September 15, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daigo Nobe
  • Patent number: 10770954
    Abstract: The invention relates to an interference suppression apparatus (100) for an electronic component, having a positive high-voltage pole (108) and a negative high-voltage pole (109), having at least one capacitance module (101; 101?, 101?) with in each case at least one first capacitor (103), via which the positive high-voltage pole (108) is connected to earth, and at least one second capacitor (104), via which the negative high-voltage pole (109) is connected to earth, and at least one third capacitor (107) which is connected between the positive high-voltage pole (108) and the negative high-voltage pole (109); and/or at least one inductance module (102) with in each case at least one common-mode inductor (112) which is wound around the positive high-voltage pole (108) and the negative high-voltage pole (109); wherein the capacitance modules (101; 101?, 101?) and/or inductance modules (102) are connected in series.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: September 8, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Dennis Burger
  • Patent number: 10770907
    Abstract: A battery device includes battery module, each including an assembled battery and a battery monitoring circuit. The assembled battery comprises battery cells. The battery monitoring circuit measures voltages of the battery cells, current and temperature levels of the assembled battery. A control circuit is connected to the battery monitoring circuits through a communication line and supplies power to the battery monitoring circuits. The control circuit communicates with the battery monitoring circuits through the communication line. Each battery monitoring circuit is configured to monitor signals transmitted on the communication line for a predetermined time period after its startup, and then to select a communication ID to one that does not conflict with any other ID used to communicate through the communication line during the predetermined time period. The selected ID is then transmitted on the communication line.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 8, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Shinji Okamoto, Fumio Shibasaki, Kazuo Shimizu, Takeshi Oosawa
  • Patent number: 10766378
    Abstract: An ECU is configured to perform output restriction control if first and second conditions are satisfied when a cell temperature is more than a threshold temperature determined based on a thermal destruction temperature of a sealing member. On the other hand, the ECU is configured not to perform the output restriction control if one of the first and second conditions is not satisfied even when the cell temperature is more than the threshold temperature. The first condition is satisfied when an acceleration time period is more than a predetermined time period. The second condition is satisfied when the temperature increase ratio of the cell is more than a restriction value.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: September 8, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroyuki Obata
  • Patent number: 10763775
    Abstract: A device protection apparatus comprising a first sensor for detecting temperature of a refrigerant used for cooling a device including a heat-generation part, a second sensor for detecting temperature of the device, and a controller 10 that applies drive limitation to the device based on a first detected temperature detected by the first sensor and a second detected temperature detected by the second sensor, wherein the controller 10 calculates a temperature difference between the first detected temperature and second detected temperature, applies drive limitation to the device when the temperature difference is higher than a predetermined temperature difference threshold value, and applies drive limitation to the device when the second detected temperature is higher than a predetermined first temperature threshold value.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: September 1, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shinji Kawaguchi, Kazushige Namiki
  • Patent number: 10759285
    Abstract: A power supply system includes a battery, a charger that converts a voltage of power input from an external power supply through a charging port into a voltage required for charge of the battery and an intra-system power supply device that is connected between the charging port and the charger. The power supply device is provided with a voltage converter that converts a voltage of output power of the power supply device into a voltage corresponding to the voltage of the external power supply.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: September 1, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Koichi Tanaka, Motoharu Nishio
  • Patent number: 10756548
    Abstract: A quick charging device connects, in a charging operation, a plurality of battery modules in series, and connects the battery modules that are connected in series to a charger, and selects, in a discharging operation, one of the battery modules, and connects the selected battery module to a load unit. When the amount of charge in the battery module connected to the load unit drops by a predetermined amount during the discharging operation, the quick charging device connects another battery module having the largest amount of charge to the load unit.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 25, 2020
    Assignee: YAZAKI CORPORATION
    Inventor: Takahiro Syouda
  • Patent number: 10752467
    Abstract: The invention provides a method and apparatus for continuously adjusting the speed of a stairlift in response to a number of operating parameters such as battery voltage and motor current draw. The method preferably further includes monitoring the speed of a reference point on a stairlift chair and comparing this with a maximum permissible speed.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 25, 2020
    Assignee: Stannah Stairlifts Limited
    Inventors: Gavin Scott Pugh, Paul Alexander Cook
  • Patent number: 10751104
    Abstract: A surgical tool that includes a sterilzable handpiece that receives an aseptic power module. The handpiece includes a data tag that contains data identifying the type of handpiece. The power module includes a reader that reads the data from the data tag. Based on the type of handpiece the power module selectively actuates the power generating unit internal to the power module. Specifically, the power generating unit is actuated to output energy having the appropriate characteristics for the type of handpiece to which the power module is attached. In many versions of the invention, the data tag is mounted to the latch integral with the handpiece. The power module also interprets the receipt of the data from the handpiece as an indication that the power module is properly latched into the handpiece.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 25, 2020
    Assignee: Stryker Far East, Inc.
    Inventors: Viren Mistry, Steve Carusillo
  • Patent number: 10745044
    Abstract: A rear wheel steering control system for a rear wheel steering (RWS) system of a vehicle can include: a voltage detecting unit detecting a magnitude of a battery voltage of a battery of the vehicle; a supplemental voltage circuit unit generating a supplemental voltage that supplements the battery voltage; and a control unit comparing the magnitude of the battery voltage with a magnitude of a required voltage required for normally operating a rear wheel steering actuator of the RWS system, calculating a magnitude of the supplemental voltage based on the comparing of the magnitude of the battery voltage with the magnitude of the required voltage, and controlling the supplemental voltage circuit unit so as to generate the supplemental voltage according to the calculated magnitude.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 18, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jang Hyun Jung
  • Patent number: 10742157
    Abstract: A vehicle and method of controlling the same are provided in which the performance of an electric motor is prevented from being degraded by efficiently and more accurately calculating the temperature of a permanent magnet within the electric motor to adjust the amount of power supplied to the electric motor. The vehicle includes an electric motor having a stator, a rotor, and a permanent magnet and a sensor that measures the temperature of the electric motor. An inverter drives the electric motor and a controller generates a predetermined heat quantity by supplying power to the electric motor to calculate the temperature of the permanent magnet based on the temperature of the electric motor at a predetermined point measured using the sensor. When the temperature of the permanent magnet exceeds a predetermined temperature, the controller reduces the supply of the power.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: August 11, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: YoungJin Shin, Dongyeon Han, Sanghoon Moon, Kyungsoo Park, WoongChan Chae, Hyoungjun Cho, Jung Shik Kim
  • Patent number: 10742137
    Abstract: A power conversion device includes a first inverter connected to first ends of windings of each phase of a motor, a second inverter connected to second ends of the windings of each phase, and a first switching circuit including at least one of a first switch to switch between whether the first inverter and a power supply are connected or disconnected and a second switch to switch between whether the first inverter and a ground are connected or disconnected. The power conversion device has a first operation mode when the motor is driven at a low speed, and a second operation mode when the motor is driven at a high speed.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: August 11, 2020
    Assignee: NIDEC CORPORATION
    Inventor: Hiromitsu Ohashi
  • Patent number: 10734934
    Abstract: A method and apparatus for quasi-sensorless adaptive control of a high rotor pole switched-reluctance motor (HRSRM). The method comprises the steps of: applying a voltage pulse to an inactive phase winding and measuring current response in each inactive winding. Motor index pulses are used for speed calculation and to establish a time base. Slope of the current is continuously monitored which allows the shaft speed to be updated multiple times and to track any change in speed and fix the dwell angle based on the shaft speed. The apparatus for quasi-sensorless control of a high rotor pole switched-reluctance motor (HRSRM) comprises a switched-reluctance motor having a stator and a rotor, a three-phase inverter controlled by a processor connected to the switched-reluctance motor, a load and a converter.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: August 4, 2020
    Assignee: Software Motor Company
    Inventors: Trevor A. Creary, Mahesh Krishnamurthy, Piyush C. Desai, Mark Johnston, Timothy Knodel
  • Patent number: 10727007
    Abstract: The invention discloses an armature circuit in an electric tool and a power socket of the electric tool using the armature circuit, comprising a power supply and a motor. Two electrodes of the power supply are each provided with a connection structure connected to an output part. One connection structure is a multi-contact on/off controllable movable contact structure, and the other one is a double-faced multi-contact structure. According to the armature circuit, the internal resistance of the armature circuit of the motor is greatly reduced, the hardness of running characteristics of the motor is enhanced, and the working efficiency of the tool is improved; due to decreasing of the internal resistance, the current loss of the armature circuit is reduced, and the temperature rise of an electric appliance and contacts is reduced; with the same working efficiency, the battery capacity can be saved, and the battery cost is reduced.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: July 28, 2020
    Inventors: Xinsheng Xu, Xiaorong Kang
  • Patent number: 10724443
    Abstract: A method of operating a turbine engine that includes actuating a starter motor of the turbine engine such that a motoring speed of the turbine engine increases, and actuating a plurality of variable stator vanes of the turbine engine such that the plurality of variable stator vanes are at least partially open to control the motoring speed of the turbine engine.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: July 28, 2020
    Assignee: General Electric Company
    Inventors: Robert Charles Hon, Thomas Charles Swager, Andrew Todd Lehmann, Michael Scott McCambridge, Thomas Earl Gillingham, Joseph Roger Broda, Kevin Richard Graziano, Amid Ansari, Kenneth Lee Kirchmayer, Tod Robert Steen, Daniel Roy Kiracofe
  • Patent number: 10717463
    Abstract: According to one or more embodiments, an example system includes a motor, and a motor control system that includes a low side current measurement subsystem. The system further includes a processor that switches the motor control system to use feedforward current control in response to detecting a current measurement failure in the low side current measurement subsystem. The processor further identifies a first phase that has a failed current measurement. The processor also computes a current measurement for the first phase, which has the current measurement failure. The processor further uses the computed current measurement to compute a parameter estimate.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: July 21, 2020
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Prerit Pramod, Varsha Govindu, Zhe Zhang, Krishna Mohan Pavan Kumar Namburi
  • Patent number: 10714949
    Abstract: A battery pack for providing different power sources may include: a low voltage battery configured to supply a first voltage; a high voltage battery configured to supply a second voltage, the second voltage being higher than the first voltage; a charging circuit configured to charge the low voltage battery using the high voltage battery; and/or a controller configured to control the charging circuit to charge the low voltage battery when a charge state of the low voltage battery is less than a desired charge state.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon-Kee Cho, ChangHyun Roh, Youngbo Shim, Byung-Kwon Choi, Taesin Ha
  • Patent number: 10709397
    Abstract: A mobile X-ray apparatus includes: an X-ray radiation device; a controller configured to control the X-ray radiation device; a power supply configured to supply operating power to the X-ray radiation device and the controller via a lithium ion battery and control overcurrent occurring during X-ray emission by the X-ray radiation device; and a charger configured to charge the power supply. Each of the controller, the power supply, and the charger is embodied in a physically separate module, and each of the power supply and the charger is encased in a metal case.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Myeong-je Kim
  • Patent number: 10715074
    Abstract: A diagnosis method for diagnosing a state of a motor includes an application step in which a voltage is applied to the motor on the basis of a non-rotating voltage signal that causes a rotation speed of the motor to become 0, and a measurement step in which a current supplied to the motor, to which the voltage has been applied, is measured. The diagnosis method includes a calculation step in which an electrical characteristic of the motor is calculated on the basis of the current of the motor measured by the measurement step, and a determination step in which an abnormality of the motor is determined on the basis of the electrical characteristic of the motor calculated by the calculation step and a parameter related to the non-rotating voltage signal.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: July 14, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Dai Tsugawa
  • Patent number: 10714946
    Abstract: A method for charging a battery of an electric vehicle, at a direct-current charging apparatus, wherein the vehicle has an inverter which is connected to the battery, and an electric motor which is connected to the inverter. During the charging process, the inverter and at least one inductor of the electric motor are used for the step-up conversion of a low charging voltage of the direct-current charging apparatus into a higher voltage which is required for charging the battery.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 14, 2020
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Stefan Götz, Till Lütje
  • Patent number: 10703432
    Abstract: In a throttle opening detecting apparatus for a saddle riding vehicle which includes a handle cover, a handle switch group, and a handlebar, and in which a throttle opening sensor fixed to the handlebar and configured to detect a displacement of a rotor in a sensor case is included in the handle cover, at least one switch of the handle switch group is disposed at a position facing the sensor case in the handle cover, and the sensor case has a step portion formed on a side surface thereof on a side opposite to a throttle pipe rotated integrally with the rotor.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: July 7, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Atsushi Nishi
  • Patent number: 10705554
    Abstract: A portable hydraulic power unit includes a fluid tank supported on a frame, a first pump configured to draw hydraulic fluid from the tank and a second pump configured to draw hydraulic fluid from the tank. The portable hydraulic power unit further includes a two-way valve disposed on a high-flow line extending from an output of the second pump, the two-way valve movable between an open state and a closed state. The two-way valve is electrically-actuated and configured to shift to the open state based on a hydraulic fluid pressure in a combined flow line downstream of the first pump and the second pump exceeding a threshold pressure level. The two-way valve directs the output of the second pump back to the fluid tank when the two-way valve is in the open state.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 7, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: Charles W. Dawson, Mariusz J. Luczak, Barry W. Mattson, Douglas S. Ryder, Bret A. Deneson, Christopher A. Lins
  • Patent number: 10696163
    Abstract: A method of regenerative braking includes providing an electric motor including at least one stator and a rotor, a speed of the rotor, a motor controller that regulates a current level in the stator winding, a power inverter which controls an energy flow to the stator terminal, and an energy storage system (ESS) which exchanges energy with the motor. A battery management circuit is between the power inverter and the ESS, and a processor has an associated memory storing a regenerative braking (RB) algorithm. The RB algorithm during braking causes the motor controller to execute determining an RB torque value from the rotor speed that maximizes regenerative braking current, and the power inverter is used to redirect the RB current to maximize a power transfer from the motor to the ESS.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: June 30, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Aravind Samba Murthy, David Patrick Magee
  • Patent number: 10700632
    Abstract: An electric motor control system of a vehicle includes a temperature module configured to, based on a motor torque request, (i) determine a plurality of stator current values based on a plurality of temperatures and (ii) generate a maximum stator current based on a lowest value of the plurality of stator current values. A torque module configured to, based on the maximum stator current, the motor torque request, and a maximum allowable flux, generate a maximum torque output. A current command module configured to, based on a speed of a rotor of the electric motor and the maximum torque output, generate a d-axis current adjustment and a q-axis current adjustment. A switching control module configured to, based on the B- and q-axis current adjustments, control switching of an inverter module and apply power to stator windings of the electric motor from an energy storage device.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: June 30, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anno Yoo, Yo Chan Son, Dwarakanath V. Simili
  • Patent number: 10700677
    Abstract: The invention relates to a method (10) and to a device (ALE) for operating a switching element (LHS), said method comprising the following steps: a temperature (Tmp) of the switching element (LHS) is determined (22) and said switching element (LHS) is operated (26) in accordance with the determined temperature (TmP).
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: June 30, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Tankut Uzan, Martin Kessler, Peter Sinn
  • Patent number: 10693390
    Abstract: In inverter control for supplying power to a motor, a power conversion device includes a temperature sensor for detecting a temperature of the inverter, a voltage sensor for detecting a voltage between terminals of a capacitor that smooths the voltage between terminals between the power source and the inverter, an inverter controller for controlling the inverter, a rotation speed sensor for detecting a rotation speed of the motor, an electric current sensor for detecting electric current supplied to the motor and a discharge determination instruction controller for giving an instruction for discharging electric charges accumulated in the capacitor, in which, control of reducing the rotation speed of the motor and discharge control of the capacitor are performed in accordance with the temperature of the inverter, the rotation speed of the motor and the electric current supplied to the motor.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 23, 2020
    Assignees: MITSUBISHI ELECTRIC CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Kazuki Takegawa, Satoshi Ishibashi, Kazuhiko Otsuka, Masaya Takahashi
  • Patent number: 10688872
    Abstract: Disclosed is a method for driving an range extending system for a motor vehicle equipped with an electric motor (2) adapted to be supplied with electric current by a traction battery (3), the range extending system including an range extender (1) that can be activated to supply the traction battery and/or the electric motor with electric current and a cooling circuit (10) for the range extender, in which provision is made to acquire a state of charge of the traction battery and, if the state of charge is below a charge threshold, to activate the range extender. Additionally, the charge threshold has a variable value, which is a function of an outside temperature of the air outside the motor vehicle.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 23, 2020
    Assignees: RENAULT S.A.S., PHINERGY LTD
    Inventor: Gerard Olivier
  • Patent number: 10676079
    Abstract: A hybrid electric powertrain system includes a transmission, engine, e-accessory, primary and secondary electric machines, and controller. The e-accessory is powered by the secondary electric machine in response to an accessory torque demand. The engine and primary electric machine are connected to the transmission and configured, alone or in combination, to provide input drive torque to the transmission. The secondary electric machine is connected to the e-accessory and satisfies the accessory torque demand. A first clutch between the secondary electric machine and a transmission input member connects the secondary electric machine to the input member. The controller, in response to an output torque request, executes a power-sharing strategy using an objective cost function that allocates engine torque, primary motor torque, and secondary motor torque to the input member to satisfy the output torque request, while satisfying the accessory torque demand via the secondary electric machine.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 9, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Norman K. Bucknor, Madhusudan Raghavan
  • Patent number: 10658949
    Abstract: An electrical architecture (1) for converting DC voltage into AC voltage, and vice versa, comprising:—a DC/AC voltage converter (2), comprising a plurality of arms mounted in parallel, each arm comprising two controllable switching cells (12), in series and separated by a mid-point, the arms being paired in H-bridges (11),—for each H-bridge (11), a dedicated control member (13), such that all of the switching cells (12) of said H-bridge (11) can be controlled by this control member (13), each control member (13) being intended to communicate with a same remote control unit (14) through a potential barrier (15).
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: May 19, 2020
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Hicham Sadki, Nathalie Coia, Boris Bouchez
  • Patent number: 10646786
    Abstract: Disclosed is a swinging drive control apparatus, including a controller and a motor, where the controller detects a counter-electromotive force of the motor and drives the motor according to the detection result. Also disclosed is a corresponding method, including: measuring a counter-electromotive force of a motor in a previous cycle; and comparing a maximum counter-electromotive force value with a preset value, and calculating a PWM pulse duty factor in a next cycle. By directly detecting the counter-electromotive force of the motor without using a sensor, the present invention implements swinging frequency and phase tracking as well as swinging amplitude control, and simplifies a control system.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: May 12, 2020
    Assignees: KUNSHAN LUCKY CHILD PRODUCT CO., LTD.
    Inventors: Xueming Zou, Xuan Zhu
  • Patent number: 10651775
    Abstract: An inverter system for a vehicle may include an energy storage device configured to store electrical energy; a first inverter including a plurality of first switching elements, and converting the energy into AC power; a second inverter including a plurality of second switching elements different from the first switching elements, being connected to the energy storage device in parallel with the first inverter, and converting the energy into AC power; a motor driven by receiving the AC power; a PWM signal generating device configured to generate a reference Pulse-width modulation (PWM) signal for controlling driving of the motor; and a PWM signal converting device configured to convert the reference PWM signal into both a first PWM signal input into the first inverter to drive the first switching elements, and a second PWM signal input into the second inverter to drive the second switching elements.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 12, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Woong Jang, Ki Young Jang, Jin Hwan Jung, Sang Cheol Shin, Beom Sik Kim, Ki Jong Lee
  • Patent number: 10644633
    Abstract: Provided is a drive control device including: a DC voltage source; an inverter configured to switch a switching element, to thereby apply a drive voltage to a rotary electric machine to cause a drive current to flow through the rotary electric machine; and a control unit configured to: control an output voltage of the DC voltage source; and perform control of causing, based on a torque command value for the rotary electric machine, a drive current to flow through the switching element in a first control mode, in which a drive current having a value equal to or smaller than a first current limit value is caused to flow, and a second control mode, in which a drive current having a value larger than the first current limit value is caused to flow.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: May 5, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Taiga Komatsu, Tatsuya Kitamura
  • Patent number: 10638602
    Abstract: A fourth layer outer frame protection pattern of a multilayer circuit board housed in a conductive base and a nonconductive cover is in contact with an inner surface of the base via a selection layer, and is connected to a second layer planar ground pattern via a coupling capacitor, outer peripheral portions of respective layer patterns including a first and third layer annular ground patterns are overlapped with each other, and the planar ground pattern is wire connected to a reference ground point of a vehicle body. When the base is conductively attached to the vehicle body, a selection layer is a solder resist film, and when it is non-conductively attached, the selection layer is a solder film, so that the planar ground pattern does not conduct with the base at the time of short circuit abnormality of the coupling capacitor.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 28, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsunori Nishida, Michihiro Takata, Tomonori Kuriyama, Keita Takahashi
  • Patent number: 10630180
    Abstract: An abnormality determiner turns OFF a third switch and controls a converter controller to stop operating in a case where a voltage value detected by a voltage detector during a normal mode exceeds a first threshold value. The abnormality determiner determines that a first switch has an abnormality in a case where the voltage value exceeds a second threshold value in a state where the converter controller is stopped. The abnormality determiner controls the converter controller to operate in a case where the voltage value is equal to or smaller than the second threshold value in a state where the converter controller is stopped. The abnormality determiner determines that the converter controller has an abnormality in a case where the voltage value exceeds a third threshold value in a state where the converter controller is operated.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: April 21, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hajime Shiji, Yoshiyuki Uno, Yoshiaki Mizushima, Shouhei Hirose
  • Patent number: 10618428
    Abstract: A vehicle includes an inverter connected to an energy store having a variable output voltage and including a first pair of battery partitions. The vehicle includes a controller configured to operate a first set of switches to arrange electrical connections between the first pair such that the variable output voltage is greater than battery voltage of a one of the battery partitions. The operation of switches is responsive to a parameter indicative of speed of an electric machine electrically coupled to the inverter exceeding a first predetermined threshold.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: April 14, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Baoming Ge, Lihua Chen, Shuitao Yang, Yan Zhou, Fan Xu, Khorshed Khorshed Alam
  • Patent number: 10611380
    Abstract: Method for automatically assessing performance of a driver (110) of a vehicle (100) for a particular trip, wherein current driving data sets, comprising basic driving data are repeatedly read from the vehicle, which method comprises the steps a) collecting previous-trip driving data sets, comprising instantaneous vehicle energy consumption, for different previous trips, different drivers and different vehicles; b) for each of said current-trip driving data sets, selecting at least one corresponding previous-trip driving data set; c) calculating a relative instantaneous vehicle energy consumption value for said selected corresponding previous-trip driving data set or sets, which is relative to a total energy consumption for a respective trip during which the previous-trip driving data set in question was observed; d) calculating a value of the said first trip performance parameter based upon an average value of said calculated relative instantaneous energy consumptions. The invention also relates to a system.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 7, 2020
    Assignee: GREATER THAN AB
    Inventor: Anders Lindelöf
  • Patent number: 10594241
    Abstract: A vehicle includes a controller configured to deactivate an inverter driving the rotor. The deactivation being responsive to respective speeds for a rotor derived from respective samples from each of a monitoring core and a current control core over a same temporal window being different by a threshold amount. The cores each generate a different number of the samples due to having different chronometric periods and the temporal window being greater than the chronometric periods.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: March 17, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: John Proietty, Susan Rebecca Cikanek, Bader M. Badreddine, William Reynolds
  • Patent number: 10594247
    Abstract: An output module for connection to a DC voltage intermediate circuit of a drive control system for an electrical drive comprises a frequency converter which is connected between the DC voltage intermediate circuit and an output of the output module, and a module controller for controlling the frequency converter. The module controller is configured to control the frequency converter in a first operating mode of the output module in such a manner that an electrical motor is driven with an electrical drive current from the DC voltage intermediate circuit via the output. The module controller is configured to control the frequency converter in a second operating mode of the output module in such a manner that an electrical feedback current from the DC voltage intermediate circuit is fed back into an electrical supply network via the output.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 17, 2020
    Assignee: Beckhoff Automation GmbH
    Inventors: Uwe Pruessmeier, Christian Mische
  • Patent number: 10579484
    Abstract: An operating method of a vehicle watchdog circuit is provided. The method includes monitoring whether communication with a vehicle controller through a preset protocol is enabled and when a communication fault does not occur by monitoring whether communication is enabled, transmitting an error detection query to the vehicle controller every preset period. A response to the error detection query is received, and an operation of the vehicle controller is monitored, and upon determining that the operation of the vehicle controller is normal, a plurality of preset reset signals are sequentially transmitted to the vehicle controller.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 3, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chang Seok You, Min Su Kang, Sung Do Kim, Dong Hun Lee
  • Patent number: 10561800
    Abstract: A skin sensing system for a drug delivery device includes a control unit and a skin sensor comprising one or more electrodes. The skin sensor may be configured to store a threshold value associated with skin sensing, receive one or more sensed signal values from the one or more electrodes, compare the one or more sensed signal values with the threshold value, and based on the comparison, transmit a resultant signal to the control unit. The resultant signal is used by the control unit to determine whether a skin surface of a user is substantially proximate to the skin sensor upon receiving the resultant signal. A drug delivery device for sensing contact with the skin includes the skin sensing system. When the skin sensor senses that the drug delivery device is in contact with a patient's skin surface, drug delivery from the device may be permitted.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: February 18, 2020
    Assignee: UNL Holdings LLC
    Inventors: Arthur Marlin, William King, Stefanie Hurowitz
  • Patent number: 10564696
    Abstract: Embodiments of the present disclosure provide a method, an apparatus, an additional power supply, and a mainboard system for supplying power to a processor. The method comprises determining whether an additional power supply is able to provide extra power required by a processor in response to receiving a first signal from a power supply unit that supplies power to the processor. The first signal indicates that the power required by the processor exceeds maximum power that can be provided by the power supply unit. The method further comprises supplying power to the processor by at least the additional power supply in response to determining that the additional power supply is able to provide extra power. The embodiments of the present disclosure can supply the required extra power to the processor from the additional power supply so as to optimize the performance of the processor in an acceleration mode.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: February 18, 2020
    Assignee: EMC IP Holding Company, LLC
    Inventors: Jing Chen, Tao Yang, Jesse Xizhi Cui
  • Patent number: 10549648
    Abstract: An apparatus includes a multi-channel DC bus assembly comprising a first channel and a second channel, a first electromechanical device coupled to a positive DC link of the first channel, and a second electromechanical device coupled to a positive DC link of the second channel. A first DC-to-AC voltage inverter is coupled to the positive DC link of the first channel and a second DC-to-AC voltage inverter is coupled to the positive DC link of the second channel. The apparatus further includes a bi-directional voltage modification assembly coupled to the positive DC link of the second channel and a first energy storage system electrically coupled to the first electromechanical device.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: February 4, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Robert Dean King, Zhihao Li
  • Patent number: 10536469
    Abstract: Approaches for providing security in a networked computing environment are provided. The method includes detecting, by at least one computer device, a breach of a first system in the networked computing environment. The method also includes identifying a second system in the in the networked computing environment as an at-risk system based on a proximity of the second system to the first system. The method additionally includes re-generating, by the at least one computer device, the second system as a new system at a new location in the networked computing environment. The method further includes converting, by the at least one computer device, the second system to a decoy system.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 14, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gregory J. Boss, Rick A. Hamilton, II, Jeffrey R. Hoy, Agueda M. H. Magro
  • Patent number: 10525837
    Abstract: A method for controlling an electric machine for driving a motor vehicle. A flux density of at least one magnetic field generated in the electric machine is increased when an announcement signal is present that announces an upcoming acceleration command by the driver, and when a confirmation signal is present that confirms the announced acceleration command, the electric machine is controlled in such a way that the speed and/or torque thereof increases.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: January 7, 2020
    Assignee: AUDI AG
    Inventor: Roman Straßer
  • Patent number: 10530166
    Abstract: Disclosed is a battery management apparatus, which includes: a pre-charging unit having a plurality of switches and connected to the first main relay in parallel, the pre-charging unit being connected between the second main relay and the second charging/discharging terminal; a control unit configured to control the plurality of switches so that an output voltage of the battery module is reduced to a reduced voltage and output between the first charging/discharging terminal and the second charging/discharging terminal; and a diagnosing unit configured to diagnose a connection state in the load based on a load current value of the current flowing in the load to which the reduced voltage is applied.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: January 7, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hyeon-Jin Song, Seon-Uk Yu, Yang-Lim Choi
  • Patent number: 10523087
    Abstract: A power tool is provided including a housing; an electric motor disposed within the housing; a power terminal that receives electric power from a battery pack; a power switch circuit disposed between the power terminal and the electric motor; and a controller configured to control a switching operation of the power switch circuit to regulate power being supplied from the power terminal to the electric motor. The controller is configured to receive a temperature signal indicative of a temperature of the battery pack, determine if the temperature of the battery pack is below a lower temperature threshold, and operate the switching operation of the power switch circuit in a normal mode of operation if the temperature of the battery pack is greater than or equal to the low temperature threshold and in a cold mode of operation if the temperature of the battery pack is below the low temperature threshold.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 31, 2019
    Assignee: Black & Decker Inc.
    Inventors: Joshua M. Lewis, James E. Goble