Battery-fed Motor Systems Patents (Class 318/139)
  • Patent number: 11031770
    Abstract: An electric working machine in one aspect of the present disclosure includes a main current-path, a driving unit including a motor and at least one first semiconductor-switching-element, a controller, a bypass current-path, a second semiconductor-switching-element, and a switch driver. The main current-path is arranged between a positive electrode and a negative electrode of a battery. The driving unit is situated in the main current path. The bypass current-path is arranged in parallel with the driving unit. The second semiconductor-switching-element is situated in the bypass current-path. The switch driver causes the second semiconductor-switching-element to interrupt the bypass current-path in an event that a voltage value of a drive voltage applied to the driving unit is less than a threshold value, and causes the second semiconductor-switching-element to complete the bypass current-path in an event that the voltage value is equal to or greater than the threshold value.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: June 8, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Yuta Izutsu, Katsuhito Fujinami, Akira Ito
  • Patent number: 11031889
    Abstract: A drive device, having a first electric machine operable as a generator and a second electric machine operable as a motor, which are electrically connected to one another, so that the second electric machine is operable using electric energy provided by the first electric machine, wherein an energy accumulator for temporarily storing electric energy is electrically connected to the first electric machine and the second electric machine. It is provided in this case that the first electric machine and the second electric machine are electrically directly connected to one another via an intermediate circuit, wherein the energy accumulator is electrically connected to the intermediate circuit via a switch arrangement both directly and also indirectly via a voltage converter. The disclosure furthermore relates to a method for operating a drive device.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: June 8, 2021
    Assignee: AUDI AG
    Inventors: Matthias Hartmann, Stefan Maiwald
  • Patent number: 11016465
    Abstract: An electrical power supply system for a programmable logic controller, including: a first electrical power supply module configured to operate in a master mode to deliver at least one electrical supply voltage to the programmable logic controller; a second electrical power supply module configured to operate in a slave mode to deliver the electrical supply voltage to the programmable logic controller in event of failure of the first electrical power supply module; a control module configured to temporarily control switching of the first electrical power supply module to the slave mode and switching of the second electrical power supply module to the master mode; and a test module configured to test the second electrical power supply module when the second electrical power supply module is switched to the master mode.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 25, 2021
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventor: Richard Tonet
  • Patent number: 11007877
    Abstract: A method for operating a motor vehicle, which is equipped with a plurality of wheels and with a plurality of electric machines. Each electric machine can be coupled to at least one wheel and be operated in a plurality of operating modes. The respective electric machines perform rotations in a first engine operating mode in a first direction of rotations. Electric energy is converted to mechanical energy. The at least one wheel is rotated in a forward direction, whereby the vehicle is driven with the at least one wheel. The respective electric machines perform rotations in a second generator operating mode in a second direction of rotations, which is opposite to the first direction of rotations, whereby electric energy is converted to mechanical energy.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: May 18, 2021
    Assignee: AUDI AG
    Inventor: Jochen Borgmann
  • Patent number: 11002786
    Abstract: The present invention relates to the analysis of current sensor signals of a multi-phase electrical system. According to the invention, signal paths between a current sensor element and a measuring device are coupled to a predetermined electric potential for a short time. A change in the subsequent measurement results can then be analyzed to see if they are indicative of a possible malfunction during the measurement.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 11, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Roland Schleser, Stephan Hanel
  • Patent number: 10994618
    Abstract: A vehicle electrical system is equipped with an inverter, an electrical energy store, an electrical machine and an AC transmission terminal. The inverter has a first and a second side and is configured to transmit power between these sides. The first side of the inverter is connected to the energy store via input current terminals of the inverter. The second side of the inverter is connected to the electrical machine via phase current terminals of the inverter. The inverter has at least two H-bridges. Each of the H-bridges bypasses the two sides of the inverter. The AC transmission terminal is connected to the second side of the inverter.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 4, 2021
    Inventors: Matthias Töns, Martin Brüll, Martin Ehrmann, Hans-Peter Feustel, Franz Pfeilschifter
  • Patent number: 10988025
    Abstract: An energy storage robot configured to be used to power electric underground equipment, the energy storage robot including a propulsion system being arranged to move the energy storage robot, an energy storage unit, a control unit being connected to the propulsion system and the energy storage unit. The energy storage unit is connectable to the electric underground equipment for powering the electric underground equipment and the control unit is arranged to communicate a level of energy of the energy storage unit to a coordinating module or another energy storage robot.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 27, 2021
    Assignee: ABB SCHWEIZ AG
    Inventors: Jonas Neander, Krister Landernäs, Linus Thrybom, Mikael Gidlund
  • Patent number: 10985672
    Abstract: An inverter device includes: three phase sections each including multiple single-phase output inverter cells connected in series, wherein each inverter cell receives input of alternating current power via a transformer; a neutral point to which an end of the series connection of each phase section is connected; current sensors each disposed at a line between the neutral point and a neutral-point-side inverter cell of the corresponding phase section; a transformer board containing the transformer; an inverter board containing the inverter cells, and being adjacent to the transformer board; and an output board containing a controller, wherein the output board includes a three-phase output terminal connected to a load, and is adjacent to the inverter board. Each line from the neutral-point-side inverter cell to the neutral point includes a part diverted from the inverter board into the output board, wherein each current sensor is arranged in the output board.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: April 20, 2021
    Assignee: MEIDENSHA CORPORATION
    Inventor: Yasumasa Miyamoto
  • Patent number: 10985587
    Abstract: In some examples, a control unit is configured to adjust charge termination voltage of a rechargeable energy storage device. The control unit is adapted to charge the rechargeable energy storage device to a charge termination voltage where the rechargeable energy storage device has capacity to support peak load but comes close to a system shutdown voltage after supporting peak load. The control unit is also adapted to increase the charge termination voltage if a voltage of the rechargeable energy storage device is near a system shutdown voltage after supporting peak load.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: April 20, 2021
    Assignee: Intel Corporation
    Inventors: Naoki Matsumura, Simon N. Peffers, Steven Lloyd, Michael T. Crocker, Aaron Gorius
  • Patent number: 10985632
    Abstract: An electrical power system is provided. The electrical power system involves a battery powered motor which in turn generates electricity using a primary generator and a secondary generator. The secondary generator provides a recycle electricity to the battery, while the primary generator provides an electrical output for powering electrical devices.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: April 20, 2021
    Inventor: John Maslowski
  • Patent number: 10978256
    Abstract: In accordance with certain embodiments, an improved switching mechanism and related components are provided. In accordance with one embodiment, an apparatus can include a switching mechanism rated to switch at least 27 kilovolts; a housing to house the switching mechanism; an isolation point of the switching mechanism visible from outside the housing to visibly exhibit a physical open-circuit by the switching mechanism; wherein the isolation point is electrically insulated without using SF6 gas during operation. This abstract is not intended to be used to determine the scope of this patent.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 13, 2021
    Assignee: Innovative Switchgear IP, LLC
    Inventor: Roger L. Schafer
  • Patent number: 10974672
    Abstract: A vehicle is equipped with an electric storage device, a drive motor, an auxiliary that can be driven by a regenerative electric power, and a control unit. The control unit performs a non-chargeable control for causing the auxiliary to consume the regenerative electric power when the electric storage device is in a non-chargeable state, and performs a specific maneuver control for causing the auxiliary to consume the regenerative electric power even when the electric storage device is in a chargeable state in the case where an operational maneuver for making a change to an operation mode in which a larger amount of the regenerative electric power is generated is performed with the regenerative electric power generated.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: April 13, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Sho Kato, Osamu Yumita
  • Patent number: 10968842
    Abstract: Methods and systems are provided for an engine. A condition of the engine may be diagnosed based on information provided by signals from a generator operationally connected to the engine and/or other signals associated with the engine. Different types of degradation may be distinguished based on discerning characteristics within the information. Thus, a degraded engine component may be identified in a manner that reduces service induced delay.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 6, 2021
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Arijit Banerjee, Ajith Kuttainnair Kumar, Arvind Kumar Tiwari, Rupam Mukherjee, Somakumar Ramachandrapanicker, Paul Lloyd Flynn, Boyanapally Srilatha
  • Patent number: 10972026
    Abstract: A motor controlling device includes a high-side first switching element corresponding to each phase of a three-phase brushless motor, a low-side second switching element corresponding to each phase, a shunt resistor disposed between and connected to the second switching element and a grounding line, and a power controlling section for controlling the first switching element and the second switching element. The device further includes a decision section configured to effect abnormality decision based on a sum of values of currents flowing in the shunt resistors of all the phases acquired by using the power controlling section to switch OFF the first switching element of any one phase whose duty ratio is found equal to or greater than a threshold value for a predetermined period and also to switch ON the second switching element of the same one phase for the predetermined period.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: April 6, 2021
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Seiji Hidaka, Kazuki Sugimori
  • Patent number: 10967746
    Abstract: A vehicle includes a battery pack including battery stacks and switching relays, and charging ports that are respectively connected to the battery stacks. The switching relays are configured to switch between a first state where the battery stack and the battery stack are electrically connected to each other, and a second state where the battery stack and the battery stack are electrically disconnected from each other.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: April 6, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yoshihiko Hiroe
  • Patent number: 10960875
    Abstract: Systems and methods changing between driveline operating modes of a hybrid vehicle are described. In one example, electrical output to electric power consumers is maintained during closing of a driveline disconnect clutch. Further, engine speed is controlled via a first electric machine to a speed of a second electric machine to provide smooth closing of a driveline disconnect clutch.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: March 30, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Dushyant K. Palejiya, Rajit Johri, Jason Meyer
  • Patent number: 10965127
    Abstract: A plurality of DC/DC converters is provided for each group of solar panels and is configured to convert an output power of the solar panels. A charger includes an input to which outputs of the plurality of DC/DC converters are connected and is configured to convert an input voltage with maintaining the input voltage to a lower limit voltage during charging. The control device controls each of the plurality of DC/DC converters independently. Each of the plurality of control devices is configured to control so as to gradually increase the output voltage of the DC/DC converter from the lower limit voltage, measure the output power of the solar panel each time the output voltage is increased, and search for the output voltage where the measured output power is maximum and maintain that output voltage.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 30, 2021
    Assignee: YAZAKI CORPORATION
    Inventor: Shuuji Satake
  • Patent number: 10946750
    Abstract: A charge and discharge control device (30) is a charge and discharge control device that controls the charging and discharging of a plurality of capacitors configured to be removably connected in parallel to a vehicle (20), the charge and discharge control device (30) device comprising a required power input component (31), a receiver (32), and a priority setting component (39). The required power input component (31) is configured to be inputted a request for power to be supplied to a motor (21) of the vehicle (20). The receiver (32) is configured to acquire remaining capacity of each of the capacitors (11). The priority setting component (39) is configured to set the priority of use of a plurality of capacitors (11A 11B, 11C, and 11D) when supplying the power inputted to the required power input component (31) on the basis of the remaining capacity acquired by the receiver (32).
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: March 16, 2021
    Assignee: OMRON CORPORATION
    Inventors: Hiromasa Takatsuka, Junichi Wada, Kazuki Kasai
  • Patent number: 10940771
    Abstract: An electric propulsion system includes a polyphase rotary electric machine that imparts motor torque to a load, a traction power inverter module (“TPIM”) connected to the electric machine, a reconfigurable energy storage system (“RESS”) connected to the TPIM, and a controller. The RESS has multiple battery modules and a switching circuit. The battery modules are connectable in a series-connected (“P-connected”) configuration at a first/low battery voltage level, and a series-connected (“S-connected”) configuration at a second/high battery voltage level that exceeds the first voltage. The controller determines power losses of the electric propulsion system at the first and second battery voltage levels, receives a commanded output torque and output speed of the electric machine, and selects the S-connected or P-connected configuration based on the predetermined power loss and commanded output torque and speed.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: March 9, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Alireza Fatemi, Thomas W. Nehl, Chandra S. Namuduri, Lei Hao, Norman K. Bucknor
  • Patent number: 10924033
    Abstract: A method operates an inverter by driving respective switching means of the bridge arms using pulse width modulation with a temporally changeable duty cycle such that voltages between the bridge connections have a temporally predefined profile. The respective switching means of the bridge arms are driven with flat-top modulation for particular angular ranges of a respective fundamental oscillation. A respective duty cycle for the respective switching means of the bridge arms is selected such that, during a respective period of the pulse width modulation, at least two shunt resistors always perform their measurement function for a minimum time.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: February 16, 2021
    Assignee: Schmidhauser AG
    Inventor: Andreas Burgermeister
  • Patent number: 10924032
    Abstract: A method operates an inverter, wherein the inverter includes a number of bridge arms with respective bridge terminals, wherein a respective bridge arm is electrically connected on a first side to a first intermediate circuit pole of the inverter, and wherein a respective bridge arm is electrically connected on a second side to a second intermediate circuit pole of the inverter. A respective bridge arm has at least two switching elements, wherein a respective bridge terminal, depending upon a circuit state of the switching elements in the bridge arm, is electrically connected either to the first intermediate circuit pole or to the second intermediate circuit pole. A shunt resistor is arranged in a respective bridge arm. The method actuates the respective switching elements of the bridge arms via pulse width modulation with a temporally variable pulse duty factor, such that voltages between the bridge terminals show a temporally defined characteristic.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: February 16, 2021
    Assignee: Schmidhauser AG
    Inventor: Andreas Burgermeister
  • Patent number: 10921838
    Abstract: During power reduction transitions of a fuel cell power plant, the excess electric energy generated by consumption of reactants is extracted, during one or more periods of time, by a voltage limiting device control (200) in response to a controller (185) as i) energy dissipated in a resistive auxiliary load or ii) as energy applied to an energy storage system (201) (a battery), in boost and buck embodiments. The controller operates the voltage limiting device control in response to the positive time derivative of the voltage of one or more of the fuel cells exceeding a predetermined limiting value.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: February 16, 2021
    Assignee: Audi AG
    Inventor: Daniel F. Orlowski
  • Patent number: 10917000
    Abstract: Driver unit for a voltage-controlled switching element, includes a first output terminal for connecting a control terminal of the switching element, a second output terminal for connecting a further terminal of the switching element, an output stage section having a high-side terminal and a low-side terminal and being controllable to connect one of its terminals to the first output terminal of the driver unit based on a control signal representative switching the switching element, and a DC conversion section configured to supply the output stage section and to convert an input voltage into a positive first voltage between the high-side terminal and the second output terminal of the driver unit and into a positive second voltage between the second output terminal of the driver unit and the low-side terminal.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: February 9, 2021
    Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
    Inventors: Philip Hubner, Alexander Bucher
  • Patent number: 10916957
    Abstract: A power control system that includes a power generation device that generates low-voltage power, a high-voltage battery that is charged with power generated by the power generation device, an external load that receives power from the high-voltage battery and a power converter that is connected between the power generation device and the high-voltage battery. The power converter includes an insulating power converter.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: February 9, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Koichi Tanaka
  • Patent number: 10910981
    Abstract: An electric power conversion system includes: an inverter; a voltage converter including a high-voltage end connected to a direct-current power source and a low-voltage end connected to the inverter; and a controller. The controller is configured to control switching elements such that a voltage of the low-voltage end becomes lower than a voltage of the high-voltage end in a first state. The controller is configured to control the switching elements such that the voltage of the low-voltage end becomes equal to the voltage of the high-voltage end in a second state.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: February 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Fumiki Tanahashi
  • Patent number: 10898185
    Abstract: A surgical instrument that includes a motion sensor configured to sense movement of the surgical instrument and a control circuit coupled to the motion sensor. The control circuit is configured to monitor the motion sensor to sense movement of the surgical instrument, transition the surgical instrument to a sleep mode when the surgical instrument has been stationary for a period above a predetermined threshold, and transition the surgical instrument to an operational mode when the surgical instrument has been moved. In the sleep mode the control circuit is configured to place a component of the surgical instrument in a low-power state. In the operational mode the control circuit is configured to activate the component of the surgical instrument.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: January 26, 2021
    Assignee: Ethicon LLC
    Inventors: Mark D. Overmyer, Brett E. Swensgard, Shane R. Adams, Thomas W. Lytle, IV, Richard L. Leimbach, Frederick E. Shelton, IV, Kevin L. Houser
  • Patent number: 10899231
    Abstract: A vehicle includes an inverter configured to power an external device. The vehicle further includes a controller programmed to cause the inverter to output a voltage at a steady-state amplitude and a steady-state frequency and, responsive to detecting an inrush current event in progress that is caused by the external device, operate the inverter to reduce the voltage to prevent an overcurrent. The controller is programmed to identify the type of load connected and return the voltage to the steady-state amplitude and steady-state frequency based on the type of load.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 26, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Xi Lu, Michael W. Degner, Krishna Prasad Bhat, Ke Zou
  • Patent number: 10890564
    Abstract: An ultrasound sensing system for monitoring the condition or integrity of a structure, comprising (a) a plurality of ultrasound sensors, each sensor being configured to receive at least one first electrical signal, transmit an ultrasound signal in response to the first electrical signal, receive at least one reflected ultrasound signal, and transmit a second electrical signal in response to the reflected ultrasound signal, the first and second electrical signals being analog; (b) at least one digital sensor interface (DSI) to which at least a portion of the sensors are connectable, the DSI being configured to transmit the first electrical signal and receive the second electrical signal, and to generate an A-scan signal based on the first and second electrical signals for each sensor, the DSI having circuitry for transmitting a digital signal based directly or indirectly on at least the A-scan signal, the digital signal including an address corresponding to the at least one DSI; (c) a digital bus configured to
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: January 12, 2021
    Assignee: SENSOR NETWORKS, INC.
    Inventors: Bruce A. Pellegrino, James Barshinger
  • Patent number: 10889177
    Abstract: A drive apparatus for a hybrid vehicle has an internal combustion engine, which has a crankshaft for outputting a drive power, and a torsional vibration reduction device, which is designed to reduce torsional vibrations and to transfer drive power from the crankshaft in the direction of a drivable wheel of the motor vehicle. A clutch device has a clutch input side, a clutch output side, a form-fit clutch and a frictional clutch. The torque transfer from the clutch input side to the clutch output side and thus from the crankshaft to the drivable wheel can be selectively produced, wherein the torque transition from the clutch input side to the clutch output side is enabled as soon as at least one of the two clutches is closed. The torsional vibration reduction device is arranged after the clutch device, relative to the torque transmission from the crankshaft in the direction of the drivable wheel.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 12, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Bernhard Hoess, Thomas Jung, Sebastian Kobler
  • Patent number: 10889202
    Abstract: A vehicle power supply system is provided. The vehicle power supply system includes a first power line connected by a first inverter and a first battery, a second power line connected by a second inverter and a second battery, a voltage converter converting a voltage between the power lines, a charging and discharging control device that controls charging and discharging of the batteries by operating the inverters and the voltage converter, and a permission unit that permits or prohibits execution of the electrical pass control for charging the second battery with power discharged from the first battery. The charging and discharging control device executes the electrical pass control when a second SOC is equal to or less than a predetermined value and the electrical pass control is permitted by the permission unit. The permission unit does not permit the execution of the electrical pass control during regenerative deceleration.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: January 12, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuya Oyama, Hirokazu Oguma
  • Patent number: 10886764
    Abstract: A power tool includes: a battery connecting part to which one of a first battery pack and a second battery pack having capacity smaller than that of the first battery pack is detachably attachable; a motor driven by electric power supplied from the battery pack; current detection means configured to detect a discharge current flowing from the battery pack to the motor; cut-off controlling means configured to cut off the discharge current when the discharge current becomes equal to or larger than a current threshold; and battery type discrimination means configured to discriminate the battery pack connected to the battery connecting part. The current threshold when the second battery pack is connected to the battery connecting part is lower than that when the first battery pack is connected to the battery connecting part.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: January 5, 2021
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Yoshikazu Kawano, Kazuhiko Funabashi, Toshiaki Koizumi, Hironori Mashiko
  • Patent number: 10875408
    Abstract: In an apparatus for controlling a motorized vehicle equipped with a rechargeable battery, a rotary electric machine electrically connected to the rechargeable battery, and electrical loads electrically connected to the rechargeable battery, a machine operating point setter is configured to, when current is passing between the rechargeable battery and the rotary electric machine, set operating points of the rotary electric machine, each specifying a system efficiency representing a ratio of input/output dynamical power of the rotary electric machine to input/output power of the rechargeable battery, a torque of the rotary electric machine, and a rotational speed of the rotary electric machine that are taken as parameters, based on the amount of current flowing through the rechargeable battery. A rotary electric machine controller is configured to control the rotary electric machine to operate at the operating points of the rotary electric machine set by the machine operating point setter.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: December 29, 2020
    Assignee: DENSO CORPORATION
    Inventors: Chinatsu Washizu, Shigeru Maeda, Kousuke Baba, Masaru Suzuki
  • Patent number: 10857903
    Abstract: A power control system supplies electric power to a plurality of power consumption devices which are provided to an electric vehicle. This system includes: a high voltage battery which is an electric power supply source; a plurality of device controllers which are provided to the respective power consumption devices and which control operations of the respective power consumption devices; and an overall controller which overall controls the plurality of device controllers. At least one of the device controllers performs an electric power restriction that restricts a consumed electric power in a corresponding power consumption device so as to allow the consumed electric power in the corresponding power consumption device to fall within an electric power allocated by the overall controller while simultaneously maintaining an operation of the corresponding power consumption device stably.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 8, 2020
    Assignee: DENSO CORPORATION
    Inventors: Koji Sakai, Tomoyuki Sumi
  • Patent number: 10850795
    Abstract: A throttle grip device includes: an interlocking member capable of rotating with an rotational operation of a throttle grip; a rotation angle detecting unit capable of detecting a rotation angle of the throttle grip by detecting a rotation angle of the interlocking member; and a return spring configured by a torsion coil spring which has one end locked to the interlocking member and urges the throttle grip and the interlocking member in a rotation direction toward initial positions when the throttle grip is rotationally operated. An engine can be controlled according to the rotation angle of the throttle grip detected by the rotation angle detecting unit, and the throttle grip device comprises a holding member which rotatably holds the interlocking member while positioning the interlocking member and holds the other end of the return spring while locking the other end of the return spring.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: December 1, 2020
    Assignee: ASAHI DENSO CO., LTD.
    Inventors: Yukio Oshiro, Yohei Mimura
  • Patent number: 10854933
    Abstract: Presented are battery pack voltage-switching (“V-switch”) systems, methods for making/operating such systems, and multi-pack, electric-drive motor vehicles with battery pack V-switch capabilities. A method for controlling operation of a vehicle includes a vehicle controller receiving a voltage switch signal to change a voltage output of the vehicle's battery system. The vehicle controller determines if a speed of a traction motor is less than a calibrated base speed; if so, the controller transmits a pack isolation signal to a power inverter to electrically disconnect the traction battery packs from the traction motor. The vehicle controller determines if a bus current of a DC bus is less than a calibrated bus current threshold; if so, the controller transmits an open signal to open one or more pack contactor switches and a close signal to close one or more pack contactor switches thereby causing the vehicle battery system to output the second voltage.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 1, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Lei Hao, Yue-Yun Wang, Chandra S. Namuduri, Suresh Gopalakrishnan, Thomas W. Nehl, Dongxu Li
  • Patent number: 10855218
    Abstract: The present invention relates to an electronic pole changing-based induction motor control system and a control method thereof. Such induction motor control system comprises an induction motor, an inverter and a DC power supply. The inverter is connected with the motor and the DC power supply respectively, for converting a direct current supplied by the DC power supply to an alternating current supplied to the motor. The motor comprises N three-phase windings (11, 12; 31, 32). The inverter comprises N inversion driving units (21, 22; 41, 42) and at least one control unit. Each inversion driving unit is connected with one three-phase winding. The control unit controls the inversion driving unit to generate a current of the three-phase winding connected thereto, and frequency, amplitude and phase of the current can be controlled by the control unit.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: December 1, 2020
    Assignee: SHENZHEN YUNLIN ELECTRIC CO., LTD.
    Inventor: Jing Zhang
  • Patent number: 10850763
    Abstract: The steer-by-wire steering system comprise a steering input device and a steering operation device that steers wheels which are mechanically coupleable. The steering input device includes a steering-side motor that supplies a steering shaft with a steering reaction force, the steering operation device includes a steered-side motor that supplies a rack shaft with a steering force, and a power supply control circuit that controls the steering-side motor to generate the steering reaction force and that controls the steered-side motor to generate the steering force. When the duty ratio of a duty signal that is generated to control the power supply to the steered-side motor reaches a setting value that is defined to indicate that a steered angle becomes unable to follow a steering angle, the power supply control circuit controls the power supply to the steering-side motor such that the steering-side motor increases the steering reaction force.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: December 1, 2020
    Assignee: JTEKT CORPORATION
    Inventors: Naoki Yamano, Hidenori Itamoto
  • Patent number: 10840559
    Abstract: A battery pack and transport coupler for enabling the battery pack to reduce the pack power capacity. The battery pack include a plurality of strings of battery cells and a switching network for coupling and decoupling the strings of battery cells from each other. When the plurality of strings of battery cells are coupled together in a default configuration the transport coupler includes a decoupler for decoupling the strings of battery cells and when the plurality of strings of battery cells are not coupled together in a default configuration the transport coupler includes a coupler for coupling the strings of battery cells for operation with an electronic device such as a power tool.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: November 17, 2020
    Assignee: Black & Decker Inc.
    Inventors: Matthew J. Velderman, Daniel J. White, Daniel Fitzgerald, Ryan Klee
  • Patent number: 10833523
    Abstract: A two-terminal circuit having a relatively high series degree is configured by connecting a plurality of electricity storage elements to each other, and charging of the electricity storage elements is started by injecting a current into this two-terminal circuit. After the connection of the electricity storage elements is changed to reduce the series degree and a voltage variation among the electricity storage elements is solved at a predetermined timing, a connection change is made to configure a two-terminal circuit having a high series degree again and charging is continued. Each electricity storage element can be charged in a short time while voltages are balanced among the electricity storage elements.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: November 10, 2020
    Assignee: KAGRA INC.
    Inventor: Akihiro Hikosaka
  • Patent number: 10833623
    Abstract: An electric power control unit configured to control drive power of a three-phase alternating current to be supplied to an electric motor may include: an inverter configured to convert a direct current to the three-phase alternating current; first and second current sensors, each of which is configured to measure a first-phase current in the three-phase alternating current; third and fourth current sensors, each of which is configured to measure a second-phase current in the three-phase alternating current; and a controller configured to control the inverter, and under a condition in which the first current sensor fails, when measured values of the second, the third, and the fourth current sensors do not coincide with each other while the inverter is shut down, the controller may stop to further supply the drive power to the electric motor.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: November 10, 2020
    Assignee: Denso Corporation
    Inventor: Wataru Nakayama
  • Patent number: 10826409
    Abstract: An electrical architecture for controlling inverters and to an aircraft includes the architecture. The electrical architecture comprises: a plurality of converters capable of operating independently of one another, each converter being intended to power a charge, associated with each converter/charge pair: a charging loop, comprising at least one sensor measuring a parameter that is characteristic of the operation of the charge, an operation control module, receiving an operation setpoint of the charge and information originating from the operation sensor, the operation control module controlling a current setpoint of the considered converter so that the information originating from the operation sensor follows the operation setpoint. The operation control module is common to the converters.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: November 3, 2020
    Assignee: THALES
    Inventors: Frédéric Lacaux, Stéphane Guguen, Joël Devautour
  • Patent number: 10822858
    Abstract: A movable barrier opener system having a brushless DC motor is provided. The movable barrier opener system may have a power supply unit with a drive circuit power module and a storage bank. The storage bank may be chargeable by the drive circuit power module and may be connectable to the drive assembly to provide electrical power to the drive assembly to move the movable barrier. The drive circuit power module may be selectably turned on and off to improve efficiency of power consumption by turning off during periods of lowered demand.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: November 3, 2020
    Assignee: GMI Holdings, Inc.
    Inventors: Greg Matias, Brent Buescher, Jr., Dan Punchak
  • Patent number: 10819099
    Abstract: Provided is a relay device that can switch conduction of a current flow path between power storage units on and off, and can suppress a decrease in the output of the power storage units if an abnormality occurs. A relay device includes: a conductive path; a switch unit switched between an ON state, and an OFF state; a coil connected in series to the switch unit; a first voltage detection unit configured to detect a voltage of the conductive path at a position on a first power storage unit side; a second voltage detection unit configured to detect a voltage of the conductive path at a position on a second power storage unit side; and a control unit configured to switch the switch unit to the OFF state if a value detected by the first voltage detection unit and/or the second voltage detection unit indicates a predetermined abnormal value.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: October 27, 2020
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kosei Maekawa, Hiromichi Yasunori
  • Patent number: 10811964
    Abstract: A circuit that increases input voltage to higher output voltage connected to a variable frequency drive in an appliance. Several switching arrangements, timing, and safety mechanisms are in place to assist. When the circuit experiences high draw, high voltage output values of circuit decrease over time, but different aspects of the circuit can be constructed so that the amount of time required at a higher voltage does not exceed the amount of time in which the high voltage output is provided.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: October 20, 2020
    Assignee: Whirlpool Corporation
    Inventor: Daniel Quinn
  • 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: 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