Battery-fed Motor Systems Patents (Class 318/139)
  • Patent number: 10286793
    Abstract: A charging station can be autonomously coupled to an electric vehicle. Sensors on the vehicle determine a location of the vehicle, and the vehicle is positioned within a connection envelope. A travel path for bringing a charging connector into contact with a charging port on the vehicle can be determined, and then the travel path is autonomously carried out. A charging station may include a mount, a bracket, and a charging connection.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: May 14, 2019
    Assignee: FARADAY & FUTURE INC.
    Inventors: Anil Paryani, Boaz Jie Chai, Evan Roger Fischer
  • Patent number: 10286784
    Abstract: An electric transportation system is disclosed. In one aspect, the system includes a wheel, a rechargeable battery having positive and negative poles, and a motor mechanically connected to the wheel and configured to generate a regeneration charge current, the motor including a coil. The system also includes a motor driver connected to the motor and the battery. The motor driver is configured to discharge the battery during a supply period so as to drive the motor and charge the battery with the regeneration charge current, wherein the motor driver includes a plurality of transistors electrically connected to the negative pole during a non-driving period. The system further includes a controller connected to the motor driver and configured to control the motor driver so as to drive the motor during the supply period and control the motor driver so as to charge the battery during the non-driving period.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 14, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyeon-Cheol Jeong, Sang-Kyou Kim, Se-Jin Ji, Woon-Seong Baek
  • Patent number: 10291162
    Abstract: This invention pertains to a solution to the parasitic problem of motor armature reaction/generator action in electric motors which causes undesired effects such as neutral plane shift and flux weakening. Prior art interventions such as interpoles and compensating windings add to complexity and cost of electric motors without satisfactorily solving the problematic issues. This invention pertains to a novel method of employing the same primary magnetic field multiple times—first to change electrical input power to mechanical output power and then to reconvert this same stored electromagnetic field energy back into electric energy for storage and reuse. The primary electromagnetic field energy is used a second time after it has been used to create the desired change in kinetic energy of the secondary magnetic field being acted upon when it is allowed to collapse back into electric storage as it would do naturally once the input current is removed.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: May 14, 2019
    Inventor: Thane C. Heins
  • Patent number: 10279686
    Abstract: A locomotive regenerative electric energy feedback system with an ice melting function, comprising two regenerative electric energy feedback devices (1). A direct-current side positive electrode of the regenerative electric energy feedback device (1) is connected to a positive electrode bus of a subway traction network, wherein the positive electrode bus is connected to an uplink contact network and a downlink contact network respectively via a first switching switch (4) and a second switching switch (5). A direct-current side negative electrode of the regenerative electric energy feedback device (1) is connected to the downlink contact network or the uplink contact network via a third switching switch (2), and the direct-current side negative electrode is connected to a negative electrode bus of the subway traction network via a fourth switching switch (3). Further disclosed is a control method corresponding to the system.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: May 7, 2019
    Assignees: NR ELECTRIC CO., LTD, NR ENGINEERING CO., LTD
    Inventors: Hao Yang, Yu Wang, Yeyuan Xie, Hongde Liu, Changwei Li
  • Patent number: 10284054
    Abstract: A motor control device is provided that enables smooth rotation control from a low-speed region to a high-speed region. A microcomputer of the motor control device calculates the rotation speed of a rotor from the time between edges that appear per 60° electrical angle at the time of starting the motor, from a signal that is output when a the hall sensor detects the magnetic field of a rotating rotor and, in conjunction with an increase in the rotation speed of the rotor, calculates the rotation speed of a rotor from the time between edges that appear at electrical angles that are larger than the electrical angle 60° in the signal, per 180° electrical angle, per 360° electrical angle, per 900° electrical angle, and per 1800° electrical angle.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: May 7, 2019
    Assignee: DENSO CORPORATION
    Inventor: Hidenobu Suzuki
  • Patent number: 10270357
    Abstract: A printed wiring board includes a primary circuit that receives power supply of a high voltage from a high power source; a pattern for a low voltage circuit that is used when a low voltage component used for a low voltage lower than the high voltage and a power supply terminal block that receives power supply of the low voltage from a low power source are provided; a pattern for a common circuit that is used when a high voltage component used for the high voltage and the low voltage that insulates the pattern for the primary circuit from the pattern for the common circuit; a first insulator which insulates the pattern of the primary circuit from the pattern of the common circuit; and a second insulator that insulates the pattern for the common circuit from the pattern for the low voltage circuit.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: April 23, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Takuma Aoshima
  • Patent number: 10266168
    Abstract: Various embodiments of the present disclosure provide systems and methods for predictive road sensing to minimize transient electrical load issues in a vehicle. More specifically, various embodiments include a system and method for minimizing electrical load issues in a vehicle by sensing a vehicle's surroundings using sensing devices (such as sensors, or a camera), utilizing detected road condition information to determine a need for starting and/or operating a motor, and preemptively soft starting the motors to avoid a spike in transient load for the vehicular control system.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: April 23, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Doug B. Thornburg
  • Patent number: 10263438
    Abstract: A battery management system for a vehicle is provided. The system is capable of preventing vehicle malfunction by preventing overcharge and over-discharge of a low-voltage battery by providing a controller that is configured to receive power transmitted from a first connection line and power transmitted from a second connection line. The battery management system includes a relay configured to electrically connect and disconnect power that is supplied from a battery to loads. The system also includes a controller configured to receive a first regular power transmitted through a connection line between the battery and the relay and a second regular power transmitted through a connection line between the relay and the loads. The controller is further configured to turn the relay on and off.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: April 16, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jong Hu Yoon, Mi Ok Kim, Kyung In Min, Do Sung Hwang, Jae Hoon Choi, Kyung Ho Kim, Beom Gyu Kim, Hee Tae Yang, Yu Seok Kim, Hyo Sik Moon, Suk Hyung Kim, Beom Joo Kwon
  • Patent number: 10263560
    Abstract: A motor drive controller according to one aspect of the present disclosure including a monitoring unit monitoring a motor and detecting that the motor is in a driving state but is also in a predetermined abnormal state; and a incomplete lock determination unit executing a determination program at a point of time when the abnormal state is detected and causing the determination program to determine whether or not the motor is in an incomplete locked state in which a load not sufficient to stop the motor is applied to a rotating body rotated by driving of the motor.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: April 16, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Takamichi Kitano, Katsunori Yamamoto
  • Patent number: 10256755
    Abstract: A motor drive controller including a monitoring unit monitoring whether or not a use state of a motor to be controlled satisfies a predetermined condition, and an output information switching unit switching information to be outputted to the outside from an information output path from motor driving information indicating a drive state of the motor to monitoring information indicating the use state if the use state satisfies the predetermined condition.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: April 9, 2019
    Assignee: MINEBEA CO., LTD.
    Inventors: Takamichi Kitano, Katsunori Yamamoto
  • Patent number: 10252623
    Abstract: A charge/discharge system includes first and second electric chargers that supplies electric power to a motor generator and charges electric power generated by the motor generator, an electric power converter that complementarily performs charging/discharging between the first and second electric chargers, and a controller. The controller controls the electric power converter based on charging conditions of the first and second electric chargers such that electric power charged in the first electric charger is charged in the second electric charger, or electric power charged in the second electric charger is charged in the first electric charger.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: April 9, 2019
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Kunihiko Hikiri, Takayuki Tsuchiya
  • Patent number: 10252629
    Abstract: An electric control system for an electric vehicle operable in a plurality of modes. The control system includes an electric motor having a plurality of motor coils, an energy storage device providing energy to the electric control system, transistor modules selectively coupling the electric motor to the energy storage device, a connector selectively coupling to an AC power source, a controllable switching device configured to selectively couple the connector to the electric motor; and a microcontroller controlling the switching device to couple the connector to at least one of the motor coils during a detected charging mode, and control one or more of the plurality of transistor modules to couple the motor coil to the energy storage device during the detected charging mode.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: April 9, 2019
    Assignee: VOLTU MOTOR, INC.
    Inventor: Jorge Guillermo Gebhart
  • Patent number: 10252625
    Abstract: An electrical power supply system includes a battery of cells, the battery including an ammeter configured to measure battery current flowing through the battery, and at least one voltage sensor configured to measure voltage at terminals of a cell. An electronic control unit is configured to deliver a maximum permissible electrical power setpoint. The control unit is configured to calculate a maximum permissible electrical power associated with a cell by taking the minimum of at least two values, including a first electrical power and a second electrical power.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: April 9, 2019
    Assignee: RENAULT S.A.S.
    Inventors: Antoine Saint-Marcoux, Do-Hieu Trinh, Yves Le Vourch, Thomas Peuchant
  • Patent number: 10256806
    Abstract: An electric vehicle includes a direct current (DC) power source with a DC electric power output. An inverter is coupled to receive the DC electric power output of the DC power source, and the inverter has an alternating current (AC) electric power output. An electric motor is coupled to receive the AC electric power output. The electric motor has a driving torque output that is coupled to drive at least one wheel of the vehicle. The inverter further includes a power semiconductor switch, such as an insulated-gate bipolar transistor (IGBT). A protection circuit is coupled to the power semiconductor switch, and the protection circuit has an adjustable protection detection level circuit.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: April 9, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Marko Jaksic, Subramanian Vadula, Zilai Zhao
  • Patent number: 10216151
    Abstract: A power-consumption-amount estimation apparatus estimating a power consumption amount of an industrial machine including a motor, a machine driven by the motor, and an amplifier driving the motor, includes: an operation-pattern-information obtaining unit; a dynamics-information obtaining unit; a circuit-information obtaining unit obtaining amplifier information and motor information; and a power-consumption-amount calculation unit executing a process of calculating power of each of the motor and the regenerative resistor based on operation-pattern information, dynamics information, amplifier information, motor information, and a bus voltage simulated value and calculating power of the industrial machine based on the calculated power and execute a process of updating the bus voltage based on the calculated power of each of the motor and the regenerative resistor and the calculated power of the industrial machine, over a specified period, and calculating a power consumption amount of the industrial machine by i
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: February 26, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koichiro Ueda, Takemasa Arakawa
  • Patent number: 10202895
    Abstract: A vehicle includes at least one sensor generating a signal to control an operation of an internal combustion engine; and a control unit configured to store a control parameter to control an operation of the internal combustion engine, and to correct the control parameter based on an output of the at least one sensor. The control unit stops correcting the control parameter while the vehicle is at a halt, and the power generator is generating electric power by driving of the internal combustion engine.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: February 12, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Makoto Yamazaki
  • Patent number: 10199922
    Abstract: A sub-module of a modular braking unit that is connected to a DC transmission network. Each sub-module has an inverse diode, and a storage capacitor connected in parallel with the inverse diode via a free-wheeling diode. An energy-consuming switching unit is connected to the storage capacitor. In order to provide a sub-module of this type such that the braking unit can function with relatively low losses in the stand-by and idle state, the sub-module is provided with an actively switchable semiconductor bypass path in parallel with the inverse diode. A braking unit has a plurality of series-connected sub-modules and we disclose a method for operating a braking unit of this type.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: February 5, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rodrigo Alonso Alvarez Valenzuela, Dominik Schuster, Klaus Wuerflinger
  • Patent number: 10195946
    Abstract: A power sharing system for electric motors and drives shares power between multiple power sources. Multiple motor drives share power between multiple energy sources, without the need for a DC to DC converter. A motor drive adapts the DC voltage range of the power source to either AC voltage or a different DC voltage range to operate one or more electric motors. Either a capacitor bank or a battery is directly connected to a motor drive's DC input. Two separate DC inputs exist, each able to operate at its own voltage and both feeding the same motor through separate motor drives, to allow batteries to be operated at one voltage level while capacitors are operated at another. The motor drives inherently cause power to flow between the motor and either power source, regardless of the relative voltages of the two sources, provided that each source is at a sufficient voltage to power the motor independently.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: February 5, 2019
    Assignee: DG Systems, Inc.
    Inventor: Joseph Mario Ambrosio
  • Patent number: 10189368
    Abstract: A power supply system includes a power transmission electric circuit via which an electrical load is connected to a first energy storage and to a second energy storage. A first charge rate indicates a charge rate of the first energy storage. A second charge rate indicates a charge rate of the second energy storage. A ratio of a first electric power amount of an electric power to be supplied from the first energy storage to the electrical load and a second electric power amount of an electric power to be supplied from the second energy storage to the electrical load is changed in accordance with the first charge rate at least in a first mode among the first mode and a second mode. The second electric power amount in the second mode is smaller than the second electric power amount in the first mode.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: January 29, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Daijiro Takizawa, Hirokazu Oguma
  • Patent number: 10181812
    Abstract: A modular power bay for an aircraft comprises a plurality of electric machines, a plurality of inverters, and a control member configured to assign to at least one machine one or more inverters, according to the operational requirements of the plurality of machines. The control member comprises: an observer, able to measure phase currents and phase-neutral voltages of an electrical power supply signal of the machine, an estimator, able to determine a rotor position, based on the measurements of at least one observer, means for communicating, to each of the inverters: a control instruction for each of the inverters for responding to the operational requirement of said machine, measurements of at least one observer, or of the estimated rotor position.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: January 15, 2019
    Assignee: THALES
    Inventor: Arnaud Dal
  • Patent number: 10173548
    Abstract: A method of adjusting battery control software for a battery having a plurality of battery sections includes connecting the battery to a charging system and a discharging system. A charging operation or a discharging operation is then initiated while monitoring a voltage response of each battery segment during the charging operation or the discharging operation. The voltage response is then correlated to a calibration database for selecting a control algorithm for each battery segment from the calibration database.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: January 8, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Patrick E. Frost, Rory B. Fraga, Alexander K. Suttman
  • Patent number: 10160345
    Abstract: A method for operating a motor vehicle, which is driven by an electric motor. The motor vehicle has a high-voltage power system, to which the electric motor is connected, with a high-voltage battery that is operated in an operating temperature range, for which purpose, a temperature control mechanism utilizing a circulating coolant, and having a heating mechanism for the coolant and a cooling mechanism for the coolant is assigned to the high-voltage battery, to satisfy a power deficiency which indicates that a braking power required by recuperation of the electric motor exceeds the on-demand power currently in the high-voltage power system that can be demanded for charging the high-voltage battery.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: December 25, 2018
    Assignee: AUDI AG
    Inventors: Daniel Ghebru, Klaus Strasser, Alois Stauber
  • Patent number: 10164515
    Abstract: A driving method for power semiconductor switches in an H-bridge circuit is provided. The method includes: calculating a start time and an end time of a zero level of an output voltage and determining a zero level section based on the start time and end time of the zero level; and driving an upper power semiconductor switch of a first bridge arm and an upper power semiconductor switch of a second bridge arm to be on simultaneously or driving a lower power semiconductor switch of the first bridge arm and a lower power semiconductor switch of the second bridge arm to be on simultaneously in the zero level section.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: December 25, 2018
    Assignee: Delta Electronics (Shanghai) Co., Ltd.
    Inventors: Wei Xu, Dingkun Shen, Jianfei Zheng, Jianping Ying, Zhiming Hu, Wei Tian, Wei Xie, Lan Wei
  • Patent number: 10164445
    Abstract: An electric power system includes a relay which is switched between an on state in which charging/discharging of a battery is permitted and an off state in which charging/discharging of the battery is inhibited, and an electronic control unit which controls switching of the relay between an on state and an off state based on a command from an electronic control unit. When a command for switching the relay from the on state to the off state is given from the electronic control unit to the electronic control unit, in a case where an abnormality occurs in the electronic control unit or in a case where an abnormality occurs in communication between the electronic control unit and the electronic control unit, the electronic control unit switches the relay to the off state.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: December 25, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiromu Saito, Ryo Shibuya
  • Patent number: 10164557
    Abstract: A first calculation unit subtracts third digital data which indicates the minimum value of the duty ratio from first digital data which indicates the duty ratio of the PWM driving operation. A slope calculation unit generates slope data which is dependent on the temperature based upon second digital data which indicates the temperature. A second calculation unit multiplies the slope data by the output data of the first calculation unit. A third calculation unit sums the output data of the second calculation unit and the third digital data. A selector receives the output data of the third calculation unit and the third digital data, selects one data that corresponds to the sign of the output data of the first calculation unit, and outputs the data thus selected as a duty ratio control signal.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: December 25, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Hiroyuki Ishii, Tatsuro Shimizu
  • Patent number: 10158302
    Abstract: Electric power equipment such as a lawn mower is provided with a travel unit driven by a travel motor for propelling the equipment, a work unit driven by a work motor to perform prescribed work such as cutting grass as the equipment travels, a battery for powering the motors, and a control unit which is configured to lower a rotational speed of the travel motor according to a decrease in the voltage or the remaining charge of the battery.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 18, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventors: Jun Fukano, Masato Takeda, Keisuke Muraoka
  • Patent number: 10158310
    Abstract: An electronic switch and an electronic device are disclosed. The electronic switch includes a trigger, a measurement device, a load control circuit, and the controller. The trigger switches on or off a circuit between a power supply and the electronic switch and generates the travel of the electronic switch. The measurement device is configured to measure working parameters of the power supply, the load and the trigger and to send the working parameters to the controller. The controller receives the working parameters and generates a control signal with a PWM signal. The PWM signal is obtained by adjusting the current control signal according to the working parameters. The control signal is sent to the load control circuit. The load control circuit controls the rotation speed of the motor in the load with the control signal.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: December 18, 2018
    Assignee: Shanghai Baicheng Electric Equipment Manufacture CO., LTD.
    Inventor: Zhengbing Liu
  • Patent number: 10155448
    Abstract: A method of controlling an isolated high voltage circuit of a vehicle comprising the high voltage circuit and a low voltage circuit wherein the high voltage circuit is isolated from the low voltage circuit, the method comprising: detecting a change in an isolation resistance of the high voltage circuit from the low voltage circuit; determining a speed of the vehicle; operating the high voltage circuit in dependence on the change in the isolation resistance and the speed of the vehicle.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: December 18, 2018
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventors: Alexandros Michaelides, Adrian Berry, Simon Johnson, Toby Heason, Chris Green
  • Patent number: 10118575
    Abstract: An in-vehicle power supply device includes a boost converter configured to perform a boosting operation to boost a voltage supplied from an input terminal; a connection-assist diode connected in parallel to the boost converter; and a switch element connected in parallel to the boost converter and the connection-assist diode. A controller detects a voltage output from an output terminal as a first voltage while instructing the switch element to open and instructing the boost converter to stop an operation of the boost converter. After detecting the first voltage of the output terminal, the controller detects a voltage output from the output terminal as a second voltage while instructing the switch element to continuously open and instructing the boost converter to perform the boosting operation. Based on the difference between the first and second voltages, the controller judges whether the boost converter is normal or abnormal.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: November 6, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasutaka Tanigawa, Shinichi Yamanouchi
  • Patent number: 10122317
    Abstract: An electric compressor for a vehicle includes: an electric motor having a coil; an inverter device for the electric motor; a capacitor that stores energy smaller than coil energy, is connected to an input end of the inverter device, and accumulates a charge according to an operation of the electric motor; a voltage detection device for the capacitor; an abnormality determination device that determines an abnormality based on the voltage of the capacitor; and a control device that performs a reflux mode in which the inverter device is controlled to flow back a current to the coil of the electric motor in case of abnormality.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: November 6, 2018
    Assignee: DENSO CORPORATION
    Inventor: Koji Sakai
  • Patent number: 10093304
    Abstract: A system and method for controlling a vehicle includes controlling a vehicle according to a first mode in response to a calculated likelihood exceeding a threshold likelihood, and controlling the vehicle according to a second mode otherwise. The calculated likelihood corresponds to the likelihood that the vehicle is within a threshold distance of a current drive cycle final destination. The calculated likelihood is derived from geolocation data collected from geolocation systems in at least one vehicle across a plurality of vehicle drive cycles.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: October 9, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Jimmy Kapadia, Kenneth James Miller, Kenneth Frederick
  • Patent number: 10090779
    Abstract: A method of compensating for a current sensor offset of an inverter includes: calculating a current sensor offset based on an output value of a current sensor, which detects an output current of the inverter, after a vehicle has started and before a current control of the inverter is performed; actuating the inverter to perform the current control according to the calculated current sensor offset; determining whether the inverter enters a burst mode while performing the current control; and re-calculating the current sensor offset based on the output value of the current sensor when the inverter is determined to enter the burst mode.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: October 2, 2018
    Assignee: Hyundai Motor Company
    Inventors: Heon Young Kwak, Gi Bong Son, Hye Seung Kim, Won Kyoung Choi
  • Patent number: 10090794
    Abstract: Provided is a motor driver including: a converter that converts an AC voltage into a DC voltage; an inverter that inverts the DC voltage into a multi-phase AC voltage for motor driving; a short bar fixed to an output terminal of the converter and an input terminal of the inverter by screw fastening; a first voltage detector that detects a voltage across the output terminals of the converter; a second voltage detector that detects a voltage across the input terminals of the inverter; and a reporting unit that provides, when a difference between the voltage detected by the first voltage detector and the voltage detected by the second voltage detector exceeds a predetermined threshold, a report relating thereto.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: October 2, 2018
    Assignee: FANUC CORPORATION
    Inventor: Tomokazu Yoshida
  • Patent number: 10081258
    Abstract: An electric vehicle includes a controller configured to receive sensor feedback from a high voltage storage device and from a low voltage storage device, compare the sensor feedback to operating limits of the respective high and low voltage storage device, determine, based on the comparison a total charging current to the high voltage storage device and to the low voltage storage device and a power split factor of the total charging current to the high voltage device and to the low voltage device, and regulate the total power to the low voltage storage device and the high voltage storage device based on the determination.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: September 25, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ruediger Soeren Kusch, Robert Dean King, Robert Louis Steigerwald
  • Patent number: 10081254
    Abstract: A method is provided for coupling at least one secondary energy source to an power supply network, in particular an on-board vehicle power supply, wherein a load is connected with a primary energy source having a first voltage characteristic. The at least one secondary energy source has a second voltage characteristic which has an operating voltage range overlapping with the first voltage characteristic. The primary energy source and the at least one secondary energy source can be connected via a power switching device to a node point of an intermediate circuit of the power supply network, to which the load is also connected. Before connecting a secondary energy source, the current drawn by the load is regulated such that the voltage connected to the node point of the intermediate circuit corresponds to a no-load voltage of the secondary energy source to be connected or is around the no-load voltage in a specified voltage range.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: September 25, 2018
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Thomas Schimanek, Christopher Kolbeck, Florian Pfattrisch
  • Patent number: 10081257
    Abstract: An electric vehicle includes a controller configured to receive sensor feedback from a high voltage storage device and from a low voltage storage device, compare the sensor feedback to operating limits of the respective high and low voltage storage device, determine, based on the comparison a total charging current to the high voltage storage device and to the low voltage storage device and a power split factor of the total charging current to the high voltage device and to the low voltage device, and regulate the total power to the low voltage storage device and the high voltage storage device based on the determination.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: September 25, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ruediger Soeren Kusch, Robert Dean King, Robert Louis Steigerwald
  • Patent number: 10079528
    Abstract: A frequency converter includes an enclosure, in which electrical and electronic components (5, 6, 7, 22) are arranged and which at least partly is designed as a Faraday cage. At least two Faraday cages (4, 9, 15, 29) are provided within the enclosure, in order to improve the electromagnetic compatibility (EMC).
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 18, 2018
    Assignee: GRUNDFOS HOLDING A/S
    Inventor: Christian Wolf
  • Patent number: 10075124
    Abstract: A motor control circuit for an electric motor of an electric power assisted steering system comprises a switching circuit comprising a plurality of electrical switches, a current demand signal generator which converts the torque demand signal into a current demands signal; and a fault mode motor current controller that is responsive to an error signal that represents the difference between the current demand signal and the actual current flowing in the motor and is operable in the event of a fault where one phase is open-circuit to drive the remaining two phases as a single combined phase by generating a single voltage demand signal that is representative of the voltage to be applied across the combined phases, the voltage signal being in turn fed into a drive circuit for the switches that generates pulse width modulated switching signals for the switching circuit required to apply the voltage across the combined phases.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: September 11, 2018
    Assignee: TRW Limited
    Inventor: Peter Geoffrey Scotson
  • Patent number: 10073143
    Abstract: The invention relates to a method for detecting anomalies in a battery cell (22), wherein a short-circuit sensor system (20) detects events (44) in a signal of a terminal voltage of the battery cell, which events have successive edges in an interval of time of microseconds, and wherein events detected by the short-circuit sensor system are transmitted to a battery management system (16) which determines anomalies in the battery cells using the detected events. A short-circuit sensor system (20) and a battery system (12) which are set up to carry out the method are also stated.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: September 11, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Leidich, Schumann Schumann, Fabian Henrici
  • Patent number: 10071646
    Abstract: The disclosure relates to an electrical system for a vehicle, comprising a low-voltage sub-network for at least one low-voltage load and comprising a high-voltage sub-network for at least one high-voltage load and an electric generator. The high-voltage sub-network has a battery which is designed to generate a high-voltage and output same to the high-voltage sub-network and which has at least two battery units with individual voltage taps. The high-voltage sub-network is connected to the low-voltage sub-network via a coupling unit which is designed to draw energy from the high-voltage sub-network and supply said energy to the low-voltage sub-network. The coupling unit is designed to selectively connect the battery units to the low-voltage sub-network. The disclosure further relates to a method for operating an electrical system, to a motor vehicle, and to a battery management system and a computer program which are designed to carry out the method.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 11, 2018
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventor: Holger Fink
  • Patent number: 10065628
    Abstract: A method and a system augment or improve a distance until charge (DUC) estimation for a vehicle such as a plug-in hybrid electric vehicle (PHEV) by using location information. Such location information may be provided by a global positioning system (GPS) or the like associated with the vehicle. The method and the system generally estimate the DUC value as a function of past driving pattern historical data that is relevant to a current driving situation. To this end, the method and the system ignore past driving pattern historical data that is not relevant to the current driving situation when estimating the DUC value.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: September 4, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Ryan Abraham McGee, Hai Yu, Johannes Geir Kristinsson, Fazal Urrahman Syed, Dimitar Petrov Filev
  • Patent number: 10059575
    Abstract: A hydraulic control device for a forklift includes: a plurality of hydraulic mechanisms including a lifting/lowering hydraulic cylinder and a tilting hydraulic cylinder; a hydraulic pump; an electric motor; a discharge control mechanism; a proportional valve; a flow rate control valve; and a controller. When the lifting/lowering hydraulic cylinder performs a lowering operation of the fork and a hydraulic mechanism other than the lifting/lowering hydraulic cylinder simultaneously performs a further operation, the controller controls an open degree of the proportional valve in accordance with a rotation speed difference of a required lowering operation rotation speed for the hydraulic pump, which is required to perform the lowering operation at an instructed speed that is in accordance with an operation amount of the lifting/lowering control member, and a required further operation rotation speed for the hydraulic pump, which is required to perform the further operation.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: August 28, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki Ueda, Tsutomu Matsuo, Takashi Uno, Hirohiko Ishikawa
  • Patent number: 10044312
    Abstract: A modular stacked DC architecture for traction system includes a propulsion system includes an electric drive, a direct current (DC) link electrically coupled to the electric drive, and a first DC-DC converter coupled to the DC link. A first energy storage device (ESD) is electrically coupled to the first DC-DC converter, and a second DC-DC converter is coupled to the DC link and to the first DC-DC converter. The system also includes a second energy storage device electrically coupled to the second DC-DC converter and a controller coupled to the first and second DC-DC converters and configured to control a transfer of energy between the first ESD and the DC link via the first and second DC-DC converters.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: August 7, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Viswanathan Kanakasabai, Bhaskar Sen
  • Patent number: 10041840
    Abstract: Temperature value determination of at least one variable frequency drive component is provided. In one form, a method includes providing a variable frequency drive that includes a first component in thermal communication with a second component in thermal communication with a switching device. A temperature value of the second component is determined using a temperature value of the first component, a power loss characteristic of the drive, and a first characteristic of heat transfer between the first and second components. The method further includes sensing a temperature value of the second component and determining a temperature value for the switching device using the power loss characteristic, a second characteristic of heat transfer between the second component and the switching device, and the greater of the sensed and determined temperature values of the second component. Further embodiments, forms, features, and aspects shall become apparent from the description and drawings.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: August 7, 2018
    Assignee: Trane International Inc.
    Inventors: Nathan Thomas West, Benjamin James Sykora
  • Patent number: 10034355
    Abstract: A driver circuit receiving wireless communication over a wireless network is disclosed. The driver circuit includes a lighting load, a main driver, and an auxiliary driver. The lighting load is selectively illuminated based on an output voltage being provided to the lighting load that is at least a forward voltage of the lighting load. The wireless communication is indicative of whether the lighting load is to be illuminated. The main driver is for controlling current and voltage within the driver circuit such that if the wireless communication indicates the lighting load is to be illuminated, then the current delivered to the lighting load is regulated by the main driver, and if the wireless communication indicates the lighting load is not to be illuminated, then the output voltage delivered to the lighting load is controlled by the main driver is below the forward voltage.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 24, 2018
    Assignee: TECHNICAL CONSUMER PRODUCTS, INC.
    Inventors: Timothy Chen, Andrew Hussey, Hao Wang
  • Patent number: 10018399
    Abstract: A transport refrigeration system having one or more compressors forming part of a refrigeration circuit for cooling an interior compartment of a container or refrigerated trailer; and one or more fans powered by direct current (DC) power, the one or more fans being at least one of an evaporator fan, a condenser fan and a ventilation fan.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: July 10, 2018
    Assignee: CARRIER CORPORATION
    Inventors: Giorgio Rusignuolo, Robert A. Chopko
  • Patent number: 10014815
    Abstract: When an abnormality is detected by an abnormality detection unit, a first switching stop device turns OFF all of switching elements connected to one arm of either an upper arm or a lower arm of a power converter, and turns ON all of the switching elements connected to the arm, which are not turned OFF; when the abnormality is continuously detected even after operating the first switching stop device, a second switching stop device turns ON or turns OFF the switching elements connected to the upper arm and the lower arm so that the turn-ON and the turn-OFF are reversed to the operation by the first switching stop device; and when the abnormality is continuously detected even after operating the second switching stop device, a third switching stop device turns OFF all of the switching elements in the upper arm and the lower arm.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: July 3, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shingo Yamaguchi, Michitaka Fujiwara
  • Patent number: 10004517
    Abstract: A powered surgical tool that includes a housing with a head and a handle that extends from the head. An electric motor is disposed in the head. A trigger extends from the handle. There is a void space in the handle. A plate separates the motor from the handle. Internal to the handle void space there is a rotor sensor and a control circuit. The rotor sensor is able to monitor the magnetic fields emitted by the motor rotor and that pass through the plate. The control circuit receives signals from the rotor sensor representative of the rotational orientation of the rotor and is further able to monitor the actuation of the trigger. Based on the rotor orientation signals and the actuation of the trigger, the control circuit generates signals that result in the selective generation of power signals to the motor rotor.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 26, 2018
    Assignee: Stryker Corporation
    Inventor: Christopher Philipp
  • Patent number: 10005362
    Abstract: An electric vehicle control device includes: a plurality of motors capable of transmitting motive power to a wheel of an electric vehicle; an inverter that supplies electric power to drive the motors; and a controller that controls the inverter and compares, when the electric vehicle drives under a certain velocity condition, a q-axis voltage feedforward value VqFF and a q-axis voltage command value Vq* used for controlling driving of the motors, to detect an occurrence of miswire between the motors and the inverter when the following inequation is satisfied: VqFF?1.5·Vq*.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: June 26, 2018
    Assignees: Central Japan Railway Company, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Hirokazu Kato, Hiroki Shimoyama, Kei Sakanoue, Toshiyuki Uchida, Tomoyuki Makino, Hiroaki Otani, Manato Mori
  • Patent number: 10003273
    Abstract: Semiconductor switch elements are individually inserted between a plurality of power conversion units provided in parallel with each other through a DC link portion and a DC power supply unit for supplying DC power to each of the power conversion units to restrict the DC power supplied to the respective power conversion units. A control circuit monitors a short-circuit current occurring in each of the power conversion units and turns off the semiconductor switch element connected to the power conversion unit where the short-circuit current flows to stop the power supplied to the power conversion unit.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: June 19, 2018
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Hiromu Takubo