Voltage Of Generator Or Circuit Supplied Patents (Class 322/28)
  • Patent number: 11549992
    Abstract: A Battery Management System (BMS) semiconductor device having a leakage current detection function, may include: a comparator configured to compare a voltage of a balancing terminal connected to a positive voltage terminal of a battery cell and a voltage of a lower sensing terminal connected to a negative voltage terminal of the battery cell and output a result of the comparing; an ADC connected to the upper sensing terminal and the lower sensing terminal and configured to sense a voltage difference between the upper sensing terminal connected to the positive voltage terminal of the battery cell and the lower sensing terminal; and a leakage current determining unit connected to the ADC and the comparator and configured to set a variable threshold value according to the difference value sensed by the ADC and determine whether a leakage current is generated by using the result of the comparing in the comparator and the variable threshold value.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 10, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Seulkirom Kim
  • Patent number: 11469696
    Abstract: An alternator system includes an alternator with a stator having at least one stationary winding and a rotor with a rotatable field coil for producing alternating current, a main voltage regulator having a main controller and a main power switch configured to control the current through the field coil, a redundant voltage regulator having a redundant controller and a redundant power switch configured to control the current through the field coil. The main power switch, the field coil and the redundant power switch are connected in series, in that order. A power supply for an electrical system includes a battery and the alternator system. A vehicle includes the power supply.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: October 11, 2022
    Inventors: Jerker Andersson, Göran Svedoff
  • Patent number: 11427143
    Abstract: A vehicle includes a prime mover, a charging system, a plurality of electrical loads electrically coupled to the charging system, and a controller. The charging system is coupled to the prime mover and includes a charge storing device and an alternator. The alternator is configured to convert mechanical energy generated by prime mover into electrical energy to charge the charge storing device. The electrical loads are electrically coupled to the charging system via a power distribution module. The controller is configured to receive an indication that an electrical output of the charging system is unable to provide sufficient electrical energy to each of the plurality of electrical loads, and provide a control signal to the power distribution module in response to the indication. The control signal is configured to cause the power distribution module to decouple at least one of the plurality of electrical loads from the charging system.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: August 30, 2022
    Assignee: Oshkosh Defense, LLC
    Inventors: Cathy Linsmeier, Ryan Bishop, Luke Gustafson, Eric Pederson, Noah Johnson
  • Patent number: 11418139
    Abstract: In an embodiment a method includes: sensing a first signal indicative of magnetization of a winding in a dynamoelectric machine; applying the first signal to a window comparator having a comparator window between upper and lower thresholds and generating window exit signals indicative of the first signal exiting the comparator window of the window comparator; generating a slowed-down replica signal of the first signal; updating the comparator window of the window comparator as a function of the slowed-down replica signal; and issuing a wake-up signal towards a control device of the dynamoelectric machine as a result of one of the window exit signals indicating the first signal exiting the comparator window of the window comparator for a time duration in excess of a duration threshold.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 16, 2022
    Assignee: STMicroelectronics S.r.l.
    Inventors: Giuseppe Di Biase, Claudio Serratoni
  • Patent number: 11400780
    Abstract: A high speed actuation system for protracting and retracting a retractable wheel and/or track drive assembly of an amphibian includes an actuator, at least one retractable wheel and/or track drive assembly comprising at least one wheel and/or track drive supported directly or indirectly by a suspension assembly and movable between a protracted and retracted positions, an energy source for providing power to the actuator, and a controller that controls in amount the power provided by the energy source to the actuator such that the time of actuation to retract the at least one retractable wheel and/or track drive assembly from a protracted position to a retracted position, or to protract the at least one retractable wheel and/or track drive assembly from a retracted position to a protracted position, is less than 5 seconds.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: August 2, 2022
    Assignee: Gibbs Technologies Limited
    Inventors: Alan Timothy Gibbs, Simon James Longdill
  • Patent number: 11374492
    Abstract: An integration circuit is provided. The integration circuit includes a current source, a capacitor connected in series with the current source, a voltage source bias connected in series with the capacitor, a switch configured to connect a first node between the current source and the capacitor and a second node between the capacitor and the voltage source bias; and a switch control logic unit configured to control an on/off operation of the switch, wherein an integration operation is performed by the current source and the capacitor.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: June 28, 2022
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Jang Hyuck Lee, Joo Han Yoon, Byoung Kwon An, Jay Lee
  • Patent number: 11362567
    Abstract: Electrical power generation in turbine engines in provided by a permanent magnet that emits a first magnetic field and is disposed on a first rotor assembly of a turbine engine; an armature winding connected to a second rotor assembly of the turbine engine such that the armature winding is positioned within the first magnetic field; a resonant emitter configured to receive an electrical power input from the armature winding to generate a second magnetic field of at least a predefined frequency when the first rotor assembly rotates relative to the second rotor assembly; and a resonant receiver disposed on an enclosure of the turbine engine, positioned to receive the second magnetic field and convert the second magnetic field into an electrical power output.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: June 14, 2022
    Inventor: Shengyi Liu
  • Patent number: 11336134
    Abstract: A solid-state electromagnetic rotor, including a plurality of salient pole pieces arranged around a supporting structure, wherein a first end of each salient pole piece is attached to the support structure and a second end of each salient pole piece points outward away from the supporting structure. The wires wound around each salient pole piece, wherein when the wires of the plurality of salient pole pieces are sequentially excited by an excitation circuit. The salient pole pieces are energized to provide a moving polar magnetic field in the form of distinct magnetic poles as desired to accomplish power generation.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 17, 2022
    Inventor: Robert Ray Holcomb
  • Patent number: 11264827
    Abstract: A charging power system with low standby power consumption includes a system control unit and a plurality of charging modules. The charging modules are electrically connected in parallel and receive an input power source. Each charging module includes an auxiliary power supply unit, a power conversion unit, and a charging module control unit. When the charging modules enter standby conditions, the system control unit produces auxiliary control signals and the charging module control units produce main control signals to correspondingly control the auxiliary power supply units to stop outputting auxiliary power. Accordingly, it is to reduce standby power consumption and increase overall efficiency of the charging power system.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 1, 2022
    Inventor: Tsung-Yuan Wu
  • Patent number: 11260740
    Abstract: The vehicle power supply system includes the DC/DC converter that is disposed on an electric path between the first load related to vehicle control and the battery and converts a voltage of direct current power supplied from the battery to the first load, and the detection device that detects the voltage of the battery. In a case where the engine is restarted by using the starter from the automatically stopped state of the engine, the detection device controls the DC/DC converter to start in a case where the voltage of the battery becomes equal to or less than a threshold value during a period from stoppage of the alternator to start of the starter.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: March 1, 2022
    Inventor: Keisuke Kanda
  • Patent number: 11218036
    Abstract: A rotating electric machine includes a stator core, multi-phase stator coils and a rotor. The stator core has teeth and slots. Each of the multi-phase stator coils is comprised of phase windings received in the slots of the stator core. The rotor radially faces the teeth of the stator core. Between the multi-phase stator coils, there is provided, at a maximum, a phase difference of ?1 in electrical angle. Each of the teeth of the stator core has a radially-extending portion and a distal end portion. The distal end portion has skew-forming portions arranged in an axial direction of the stator core. Each of the skew-forming portions has a distal end surface facing the rotor. Circumferential center positions of the distal end surfaces of the skew-forming portions are circumferentially offset from one another by, at a maximum, ?2 in electrical angle. Moreover, the relationship of ?2<?1 is satisfied.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: January 4, 2022
    Inventors: Koji Isogai, Katsuya Fujisaki
  • Patent number: 11193467
    Abstract: A power system with an electric rotating machine providing an operation of power generation and power running, a switching circuit providing electricity for each phase, by switching a plurality switching elements ON/OFF by the electric rotating machine, a battery section connected to the switching circuit, and switches on electrical pathway, between the switching circuit and the battery section. A power shutoff section to shutoff an electrical pathway when an overcurrent flows in, at least one of the electric rotating machine and the switching circuit. Power control devices are provided with an overcurrent determination which determines that an overcurrent has occurred, based on results of, a first determination that determines a current flow has increased to a predetermined over current threshold, and a second determination that determines that current flow has decreased thereafter, and a switch control that switches the switches open based on a determined result of the overcurrent determination.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: December 7, 2021
    Inventors: Takuto Suzuki, Hiroshi Inamura
  • Patent number: 11191957
    Abstract: A living body stimulation device includes an outputting unit that outputs a stimulation signal to a living body. The stimulation signal is a signal in which a positive pulse group and a negative pulse group appear alternately at predetermined intervals. The positive pulse group is constituted by a plurality of pulses whose potential rises toward the plus-side. The negative pulse group is constituted by a plurality of pulses whose potential falls toward the minus-side.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 7, 2021
    Assignee: TECHNO LINK CO., LTD.
    Inventor: Tatsuyuki Kobayashi
  • Patent number: 11185940
    Abstract: A method for controlling an output current of a welding power supply includes detecting, using control circuitry of the welding power supply, a root mean square (RMS) current setting. The method also includes calculating, using the control circuitry, an average current command based on the RMS current setting. The method also includes controlling, using the control circuitry, the output current using the average current command to produce an output substantially the same as the RMS current setting.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: November 30, 2021
    Assignee: Illinois Tool Works Inc.
    Inventors: James F. Ulrich, Jeremy D. Overesch, Edward G. Beistle
  • Patent number: 11183941
    Abstract: A method of controlling a variable speed constant frequency (VSCF) power converter is provided. The method includes receiving a determination that a sensed AC current output has exceeded a predetermined limit. The AC current output is converted from a DC voltage and has a constant frequency. The DC voltage is converted from a variable frequency AC voltage. The variable frequency AC voltage is generated in response to a mechanical energy input having a varying parameter. The method further includes decreasing the DC voltage in response to a determination that the sensed AC current output has exceeded the predetermined limit.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: November 23, 2021
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Dwight D. Schmitt
  • Patent number: 11173803
    Abstract: A vehicle system includes a converter, outlets, and a switching arrangement electrically between the outlets and the converter. A controller is programmed to, responsive to a first request, operate the switching arrangement to electrically connect a line and a neutral to a first outlet and operate the converter to output single-phase power to the first outlet. Responsive to a second request, the controller is configured to operate the switching arrangement to electrically connect a plurality of lines and not the neutral to a second outlet, and operate the converter to output three-phase power to the second outlet.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: November 16, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Krishna Prasad Bhat, Jacek Brauner, Xi Lu, Theodore Joseph Filippi, Ke Zou, Allan Roy Gale, Michael W. Degner
  • Patent number: 11135921
    Abstract: Disclosed is a battery management method including calculating a safety of a battery unit based on physical quantity data of the battery unit, monitoring for a threshold adjusting event to occur, performing a comparing with respect to the calculated safety and a threshold based on the monitoring indicating that the threshold adjusting event has occurred, the comparing being based on reference information corresponding to the threshold adjusting event, and selectively performing a feedback process to output a feedback dependent on a result of the comparison.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 5, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeonghyun Park, Sun-Jae Lee
  • Patent number: 11139726
    Abstract: An electromagnetic generator comprises one or more flux assembly having at least one coil and at least one magnetic field source separated by a gap. An interference drum has a sidewall at least partially positioned inside the gap and comprising at least one magnetic field permeable zone and at least one magnetic field impermeable zone. The interference drum is movable relative to the at least one coil and to the at least one magnetic field source to alternatively position the at least one magnetic field permeable zone and the at least one magnetic field impermeable zone of the sidewall inside the gap. When the interference drum is moved, magnetic flux is created in the coil, and induces electrical current to flow into the coil. The coil may be connected to an external circuit, such that the electrical current may flow through the external circuit.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: October 5, 2021
    Assignee: Prototus, Ltd.
    Inventor: Carl E. Copeland, Jr.
  • Patent number: 11128139
    Abstract: A power generation system (100) including an inverter (140) structured to convert a direct current (DC) power output from an external source (110) to an alternating current (AC) power. The inverter includes at least one phase for converting the DC power to a corresponding phase of AC power. The system also includes an alternator (124) of a generator set (120). The alternator includes at least one phase, each comprising a first winding section and a second winding section coupled in series between a point of common coupling and an output terminal of the phase. A phase of the inverter is connected in parallel with the first winding section of the alternator. The inverter is configured to provide reactive power compensation, power factor correction or acts as an active filter to provide harmoincs damping and the system can be used to buffer and handle grids transients.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: September 21, 2021
    Assignee: Cummins Power Generation Ltd. (UK)
    Inventors: Emil Ernest, Krzysztof Paciura, Bradford K. Palmer
  • Patent number: 11084393
    Abstract: A vehicle system includes a controller programmed to receive power outlet data from an interchangeable outlet panel via a communication channel and operate an inverter to supply power to the interchangeable outlet panel via a power interface according the power outlet data.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 10, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Jacek Brauner, Theodore Joseph Filippi, Allan Roy Gale, Ke Zou
  • Patent number: 11071456
    Abstract: Medical devices are provided, comprising a medical device and a sensor.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: July 27, 2021
    Assignee: Canary Medical Inc.
    Inventors: William L. Hunter, Douglas R. Holberg, Jeffrey M. Gross
  • Patent number: 11057969
    Abstract: A solid state radio frequency generation system is provided for an electromagnetic cooking device having an enclosed cavity. The radio frequency generation system includes: an RF feed for introducing electromagnetic radiation into the cavity to heat a food load; a high-power RF amplifier coupled to the RF feed, the amplifier comprising at least one amplifying stage configured to output a signal that is amplified in power with respect to an input RF signal; a small signal generator for supplying the input RF signal to the amplifier; and a switching power supply unit including a single DC-DC converter that converts AC mains power to low voltage DC for supply to the amplifier, and a controller configured to adapt an input current from the AC mains power to form a predefined periodic waveform with the same frequency as the AC mains power for supply to the small signal generator.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: July 6, 2021
    Assignee: Whirlpool Corporation
    Inventors: Andrea Gallivanoni, Cristiano Vito Pastore, Matteo Rinaldi, Natalia Roumpedaki
  • Patent number: 11038449
    Abstract: A control device for a vehicle generator includes a shared terminal to be connected to a communication IF or a lamp IF via a switch; and a nonvolatile PROM which controls the switch based on shared terminal setting data and carries out switching between the IFs to be connected to the shared terminal. The PROM stores therein shared terminal setting data “communication IF effective” as its initial setting. The shared terminal setting data stored in the PROM can, when necessary, be rewritten into “lamp IF effective” via the shared terminal, the communication IF, and a memory controller.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: June 15, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masahiro Nakajima, Kensuke Kitamura, Katsuyuki Sumimoto
  • Patent number: 10996280
    Abstract: A battery pack includes a secondary battery, a state of charge calculator, an integrated current amount calculator, a differential state of charge calculator, a full charge capacity calculator, and a charging-and-discharging control section. The differential state of charge calculator calculates a differential state of charge between a first state of charge at a first detection timing and a second state of charge at a second detection timing. The integrated current amount calculator calculates an integrated amount of a current flowing to the secondary battery in a subject period from the first detection timing to the second detection timing. The full charge capacity calculator calculates a full charge capacity of the secondary battery based on the differential state of charge and the integrated current amount. The charging-and-discharging control section is configured to restrict one of the charging and the discharging of the secondary battery during the subject period.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: May 4, 2021
    Inventors: Yuki Tachibana, Yamato Utsunomiya, Takeshi Sada
  • Patent number: 10914776
    Abstract: The invention relates to a method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110), a stator winding (120), and a rectifier (130) connected thereto, via which the electric machine (100) is connected to an onboard electrical system (150) of a motor vehicle, wherein a voltage of the onboard electrical system (150) is controlled to a target value via an excitation current (IE) through the rotor winding (110) of the electric machine (100), and a curve of a phase voltage (Uy) of the stator winding (120) is monitored, wherein an error in the generator unit is inferred when a change of the phase voltage (Uy) is detected and a voltage of the onboard electrical system (150) changing within a threshold value range (S) is detected.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: February 9, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Manuel Mueller, Sebastian Paulus, Zoltan Ersek
  • Patent number: 10875118
    Abstract: A method and apparatus for providing engine driven welding-type power supply includes an engine, a generator, an input power circuit, a welding-type power circuit, an auxiliary power circuit and a controller. The generator includes permanent magnets that create and provides a generator output from at least one polyphase winding. The input power circuit is connected to the generator output and the welding-type power circuit is connected to the input circuit, and provides a welding-type output. The auxiliary power circuit is connected to the input circuit and provides an auxiliary power output. The controller is connected to the auxiliary power and the welding type power circuits, and can command that there be no load for the generator. The generator is connected to the engine and connected to function as a flywheel to the engine and the engine does not include a flywheel other than the generator.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: December 29, 2020
    Inventors: Dennis R Sigl, Todd G. Batzler, Michael D. Madsen
  • Patent number: 10822067
    Abstract: A power system of a ship includes a first power storage device, a second power storage device, and a control system. The first power storage device has an energy density higher than that of the second power storage device. The second power storage device has a power density higher than that of the first power storage device. The control system is configured to: as a power generator application, prioritize discharging the first power storage device over discharging the second power storage device, such that base power is continuously supplied to an onboard electrical load connected to an onboard bus; and as a grid stabilization application, prioritize charging/discharging the second power storage device over charging/discharging the first power storage device to compensate for frequency variation or voltage variation of an onboard power grid.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: November 3, 2020
    Inventors: Hideaki Ezaki, Masato Hayashi, Masanori Hamamatsu, Soichiro Bando, Kazuma Tokuyama, Tatsuya Ohno, Kazuya Takeda, Yasunori Kujime
  • Patent number: 10804826
    Abstract: A control device 4 for a power generation system 1 includes a target voltage regulator part 43 configured to adjust the target voltage Vr of a generator 3. The target voltage regulator part 43 has: a voltage decrease function to reduce the target voltage Vr of the generator 3 in accordance with a decrease amount of a detection value Sm of a rotation speed S of a gas engine 2 or a frequency of the generator 3 if the detection value falls below an allowable variation value when a load is connected to the generator 3 via a circuit breaker 5; and a voltage decrease limiting function to maintain the target voltage Vr of the generator 3 at an allowable lower limit voltage determined on the basis of an output voltage V which is allowable to carry out normal operation of the load if the target voltage Vr of the generator 3 is lower than the allowable lower limit voltage.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: October 13, 2020
    Inventors: Junichi Taniguchi, Hiroshi Yamawaki, Yoshiharu Ito, Masao Takatsuka, Takuya Karatsu, Hazumu Abe, Makoto Gohara
  • Patent number: 10794216
    Abstract: A gas turbine engine according to an exemplary embodiment of this disclosure includes, among other things, a fan driven by a fan shaft rotatable about an engine axis; a fan drive electric motor providing a supplemental drive input to the fan; a turbine section driving an input shaft; a geared architecture driven by the input shaft of the turbine section and coupled to the fan shaft to provide a main drive input for driving the fan; and a generator including a rotor supported on the input shaft and a stator disposed on a static structure relative to the rotor, wherein the generator communicates electric power to power the fan drive electric motor.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: October 6, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel Bernard Kupratis, Frederick M. Schwarz, William G. Sheridan
  • Patent number: 10797574
    Abstract: An electrical machine has a stator with windings, first and second rotors, and an electrical output regulator. The first rotor carries alternating polarity first field magnets, such that, on drive mechanism rotation, the windings interact with the magnetic flux produced by the first magnets to create an EMF. The second rotor carries alternating polarity second field magnets, and has first and second rotational positions to reduce and increase, respectively, the magnetic flux energy. The electrical output regulator regulates a current from the windings to produce a torque on the rotors, as the drive mechanism increases from zero rotational speed, the torque rises above a threshold level that moves the second rotor from the first to the second rotational position, and, as the drive mechanism further increases the rotational speed, the torque peaks and then drops below the threshold level to move the second rotor back to the first rotational position.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: October 6, 2020
    Assignee: ROLLS -ROYCE plc
    Inventors: Simon Turvey, Keir Wilkie
  • Patent number: 10742156
    Abstract: A control apparatus controls rotating electrical machine which is applied to a vehicle in which an engine is automatically stopped in the case where predetermined automatic stop conditions are satisfied, and, the engine is automatically restarted in the case where predetermined restarting conditions are satisfied, the rotating electrical machine receiving supply of an exciting current from a transistor-chopper type exciting circuit in which a first pair of facing arms of a bridge circuit is configured with power transistors, and a second pair of arms is configured with diodes, and the rotating electrical machine having a power generation function based on rotational force of the engine. The control apparatus executes first grounding control in which, during automatic stop of the engine, among the first pair of arms, the power transistor connected on an earth side of the rotating electrical machine is put into an ON state.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: August 11, 2020
    Inventor: Takuto Suzuki
  • Patent number: 10725938
    Abstract: An auto-loop regulation system for a voltage regulator receives a plurality of pre-determined loop parameters through an interactive computing equipment, and the voltage regulator operates according to the plurality of pre-determined loop parameters, wherein the interactive computing equipment regulates at least one of the loop parameters automatically in real time according to an online loop value when the voltage regulator is operating online, and the interactive computing equipment keeps regulating the loop parameters until the online value of the voltage regulator matches with a target value.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: July 28, 2020
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Lijie Jiang, Xiaokang Wu, Suhua Luo, Qian Ouyang
  • Patent number: 10719997
    Abstract: Various embodiments provide prognostic vehicle diagnosis methodologies for monitoring the relative health of various vehicle components over time, to enable replacement of those vehicle components prior to component failure. Sensors monitoring those vehicle components transmit generated telematics data to a computing entity configured to generate a telematics data signature based on the sensor-generated data, and to compare the telematics data signature against a reference data signature to ascertain the relative health of the vehicle component. If the telematics data signature satisfies a failure threshold identified within the reference signature, the computing entity initiates a replacement process at least in part by generating an alert for a maintenance personnel.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: July 21, 2020
    Assignee: United Parcel Service of America, Inc.
    Inventors: Philip Aiello, Ralph Gallagher
  • Patent number: 10707788
    Abstract: A vehicle power system includes a controller that reduces a voltage setpoint of an alternator by a predetermined amount in response to a magnitude of electric charge provided by the alternator during a predetermined time period exceeding a first threshold and a rate of change of power output by the alternator exceeding a second threshold during the time period. The controller also regulates an output voltage of the alternator based on the setpoint.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: July 7, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Todd Ansbacher, Alan Francis Judge, Jeffrey Raymond Mohr, Frederick Shell, Michael J. Irby, Karen Price, Gabriel Jim, Christopher Semanson
  • Patent number: 10680503
    Abstract: An electrical machine including a rotor and a stator, at least one of the rotor and stator being provided with superconducting first electrical windings; and a set of one or more screen electrical windings, provided in the form of one or more further superconducting electrical windings, arranged around and radially outward of the first electrical windings; wherein the set of screen electrical windings is arranged to be supplied with an electrical current for generating a magnetic field of suitable magnitude and phase to reduce the magnitude of the magnetic field, generated at least by the first electrical windings during operation of the electrical machine, radially outwards of the screen electrical windings.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 9, 2020
    Assignee: ROLLS-ROYCE plc
    Inventors: Stephen Williamson, Alexander C Smith, John J A Cullen, Ellis F H Chong
  • Patent number: 10669978
    Abstract: A method and system of improving the efficiency of motor vehicles includes stopping an engine of a motor vehicle system if the motor vehicle system is immobile for more than a predetermined period of time, according to one embodiment. The method and system includes starting the engine with a magneto system, in response to one or more vehicle conditions, such as operation of a throttle, operation of a clutch, and/or operation of a brake lever, according to one embodiment.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: June 2, 2020
    Inventor: Laurent Perier
  • Patent number: 10637469
    Abstract: A fast shut-off solenoid circuit network includes a solenoid circuit and a current dissipation circuit. The solenoid circuit is operable in response to an electrical current, and configured to operate in an enable mode and a disable mode. The current dissipation circuit is configured to dissipate the current discharged from the solenoid circuit in response to invoking the disable mode. The fast shut-off solenoid circuit network further includes a dissipation bypass circuit. The dissipation bypass circuit is configured to divert the current discharged by the solenoid circuit away from current dissipation circuit when operating in the enable mode.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: April 28, 2020
    Inventors: Michael A. Wilson, Eduardo Ahuactzin Parra
  • Patent number: 10622859
    Abstract: The invention relates to an electronically commutated electric machine (2) comprising: a rotor (21); an exciting winding (6) that is located at the rotor (21) in order to generate or alter a direct magnetic field in the rotor (21); a stator (22) comprising a three- or multi-phase stator winding (23) with phases that can be controlled via phase lines (8). The exciting winding (6) is connected to the stator winding (23).
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: April 14, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Martin Neuburger, Kurt Reutlinger
  • Patent number: 10603921
    Abstract: In accordance with an embodiment, a liquid circulation device comprises a plurality of piezoelectric pumps configured to circulate liquid in a replenishing tank to a liquid discharge head through an operation of a piezoelectric actuator thereof; a DC power supply; a switching circuit configured to switch an output of the DC power supply to supply a driving voltage to the piezoelectric actuator of the piezoelectric pump; and a control circuit configured to control the driving voltage by controlling a switching timing of the switching circuit.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: March 31, 2020
    Inventor: Kazuhiro Hara
  • Patent number: 10574168
    Abstract: An electrical motor device according to the present invention is provided with a control unit. The control unit is configured to adjust the ratio of transformation by adjusting the ratio between a first time period, in which all upper-arm-side switching elements are on and all lower-arm-side switching element are off, and a second time period, in which all upper-arm-side switching elements are off and all lower-arm-side switching elements are on, and to select one of a plurality of driving modes for each control cycle. The plurality of driving modes include: a dual-driving mode including the first time period and the second time period in one control cycle during electrical motor driving; and an electrical motor driving mode not including the first time period and the second time period in one control cycle during electrical motor driving.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 25, 2020
    Inventor: Masamichi Nawa
  • Patent number: 10498272
    Abstract: A field circuit includes a positive pole side switching element which is for controlling field current that flows in a field winding and a negative pole side switching element which is for interrupting the field current; a field circuit control section includes a field high-speed interruption determination block and a field current interruption speed control block; and at the time of interrupting the field current at a high speed, the field current is interrupted immediately by turning OFF both switching elements of the positive pole side and the negative pole side and interruption speed of the field current is controlled by intermittently driving the negative pole side switching element.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: December 3, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takanori Matsunaga, Ryo Nakamura, Kenichi Akita
  • Patent number: 10497988
    Abstract: Provided is a battery module and an electronic device, the battery module including a first battery, a second battery, a correcting element unit, and a battery controller, wherein the first battery includes a first internal resistance and provides a first current, the second battery is connected to the first battery, includes a second internal resistance and provides a second current, the correction element unit is connected to the first battery or the second battery and includes a variable resistor or a current source, the battery controller controls the correction element unit such that the first current is identical to the second current on a basis of a difference between values of the first internal resistance and the second internal resistance, and therefore performances of the first battery and the second battery are prevented from being deteriorated.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: December 3, 2019
    Inventors: Jimin Oh, Jung Hee Suk, Yil Suk Yang, Jong Pil Im
  • Patent number: 10491147
    Abstract: System and method are disclosed for power management in a vehicle having two or more alternators. An example vehicle power system includes first and second alternators, and a processor. The processor is configured to determine that a load coupled to the first and second alternators increases at greater than a threshold rate. The processor is also configured to responsively (i) reduce respective voltage setpoints of the first and second alternators, and (ii) turn off the second alternator. And the processor is further configured to, after determining that a voltage transient caused by the load has expired, turn on the second alternator.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Alan Francis Judge, Gabriel Jim, Jeffrey Raymond Mohr, James Brian Keyse, Anthony Thomas Spoto, John G. Fraser
  • Patent number: 10302500
    Abstract: A differential pyroelectric infrared detector circuit formed by connecting a pyroelectric crystal to two separate impedance conversion circuits. The separate circuits derive two low impedance outputs which are connected to a differential or instrumentation amplifier. The circuit will eliminate electronic perturbations from outside sources such as line frequency interference or notice from an external but nearby oscillator which may be used to operate a microprocessor circuit, and other sources of electronic noise. The two outputs when connected differentially also have an output which is a factor of two greater than a normal standard single ended device, but also only produce noise which is only the square root of 2 or greater. The circuit additionally increased the signal to noise of the detector by a factor of the square root of the increase in signal or by about 1.41 times the standard single ended device.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: May 28, 2019
    Assignee: Laser Components GmbH
    Inventor: Alan Doctor
  • Patent number: 10273876
    Abstract: An alternator includes an exciter field device generating an exciter magnetic field in a first air gap, an exciter armature device configured to rotate with respect to the exciter magnetic field and impart a first voltage in a first set of coils at the first air gap, a main stator device including a second set of coils, and a rotor field device configured to be energized by the first current in the first set of coils and generate a main magnetic field that imparts a second voltage on the main stator device at a second air gap. The main stator device and the exciter field device lie in on a common plane normal to an axis of rotation, and the exciter armature device is inwardly spaced from the exciter field device, main stator device, and the rotor field device.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: April 30, 2019
    Assignee: Kohler Co.
    Inventors: Isaac S. Frampton, Adam Larson, Frank C. Formas
  • Patent number: 10263551
    Abstract: The method of control according to the invention slaves a DC voltage generated by the alternator to a predetermined setpoint value by controlling an excitation current flowing in an excitation circuit comprising an excitation winding of a rotor of the alternator. The excitation current is controlled by means of a semiconductor switch, in turn controlled by a control signal having a predetermined period. The method comprises a detection of a failure of the excitation circuit. At least one short-circuit of the excitation winding is detected. According to another characteristic of the method, the control signal is generated on the basis of a combination of a setpoint signal formed by pulses of the predetermined period exhibiting a duty ratio representative of the setpoint value and of a detection signal indicative of the short-circuit.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: April 16, 2019
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Pierre Tisserand, Pierre Chassard, Thibault Arrou, Giuseppe Pasetti, Francesco Tinfena, Alexandre Schmitt
  • Patent number: 10243495
    Abstract: The present disclosure relates to motor vehicles. The teachings thereof may be embodied in the operation and control of an externally excited electrical generator in an on-board electrical system of a motor vehicle. An example method may include: setting the excitation voltage within the scope of regulating an actual output voltage of the generator at a predetermined setpoint output voltage of the generator; evaluating load requirements of at least one peak load consumer supplied from the on-board electrical system; identifying exceptional situations based on the load requirements; and in the event of an exceptional situation, setting an associated temporary excitation output voltage of the generator.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: March 26, 2019
    Inventors: Hans Schroth, Michael Kutzner
  • Patent number: 10234484
    Abstract: A power monitoring system includes a plurality of current sensors suitable to sense respective changing electrical current within a respective conductor to a respective load and a conductor sensing a respective voltage potential provided to the respective load. A power monitors determines a type of circuit based upon a signal from at least one of the current sensors and a signal from the conductor, wherein the type of circuit includes at least one of a single phase circuit, a two phase circuit, and a three phase circuit. The power meter configures a set of registers corresponding to the determined type of circuit in a manner such that the configuring is different based upon each of the single phase circuit, two phase circuit, and three phase circuit suitable to provide data corresponding to the determined type of circuit.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: March 19, 2019
    Assignee: Veris Industries, LLC
    Inventors: Martin Cook, Michael Bitsch
  • Patent number: 10203708
    Abstract: A power regulator has an input terminal to receive an input voltage, an output terminal to output an output voltage, a transistor connected to the input and terminals, a feedback terminal to receive a feedback voltage, and a control circuit to control the transistor based on the feedback voltage at the feedback terminal and a reference voltage so as to keep the output voltage constant. Various implementations include an open detection circuit to detect an open state of the feedback terminal and, on detecting the open state, to vary the reference voltage and thereby keep the transistor in an OFF state, or a voltage holding circuit configured to hold the output voltage constant at a second voltage lower than the first voltage when the feedback terminal is in an open state.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: February 12, 2019
    Assignee: Rohm Co., Ltd.
    Inventors: Makoto Yasusaka, Zhencheng Jin
  • Patent number: 10181808
    Abstract: When an electrical primary frequency of power fluctuation of a motor is smaller than a determination threshold value fth1 that is a lower limit frequency of a frequency band where resonance occurs in a circuit including a reactor and a capacitor of a boosting converter or greater than a determination threshold value that is an upper limit frequency of the frequency band where resonance occurs, a value G2 is set as a gain G and when the electrical primary frequency is equal to or greater than the determination threshold value fth1 and equal to or smaller than the determination threshold value, a value G3 at which the upper limit frequency of the resonant frequency band has a low frequency than the determination threshold value fth1 is set as the gain G, and a current control in the boosting converter is executed using the gain G set in this way. The resonance of the circuit including the reactor and the capacitor of the boosting converter can be prevented.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: January 15, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kojiro Asakawa, Kazuhito Hayashi, Daigo Nobe