Battery-fed Motor Systems Patents (Class 318/139)
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Patent number: 11088642Abstract: An electric winding exchanger system increases torque or speed performance of multi-phase electric motors and electric drive modules. The system includes an electronic control unit, a back electromotive force (EMF) boosting circuit, a plurality of high-voltage terminals, an electric motor, and a motor control unit. The electronic control unit receives and processes commands from the motor control unit. The back EMF boosting circuit adjusts the winding arrangements of the electric motor in order to change the state of the electric motor. The plurality of high-voltage terminals transfers high voltage electrical energy from the back EMF boosting circuit to the electric motor and vice versa. The motor control unit allows a user to input commands in order to activate increased torque or speed performance for the electric motor. The electric motor is preferably a multi-phase electric motor of an electric or hybrid vehicle.Type: GrantFiled: August 17, 2020Date of Patent: August 10, 2021Assignee: SCNEWTON INC.Inventor: Ali Sarikhani
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Patent number: 11085971Abstract: A present measurement value p (k) of each of plural characteristic parameters p, representing the characteristics of a secondary battery 220, is input to initial characteristic model to calculate an initial characteristic estimated value p1 (0?k) of a first characteristic parameter as output of the initial characteristic model. A first index value F1 (i) representing the present state of the target is calculated based on a present time series P1 (i) of the measurement value p1 (k) of the first characteristic parameter. A second index value F2 (i) representing a past state of the target is calculated on the basis of a present time series P1 (0?k, i) of the initial characteristic estimated value p1 (0?k) of the first characteristic parameter. A degradation state of the target is determined based on the first index value F1 (i) and the second index value F2 (i).Type: GrantFiled: October 12, 2018Date of Patent: August 10, 2021Assignee: TOYO SYSTEM CO., LTD.Inventors: Ichiro Munakata, Hideki Shoji
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Patent number: 11075589Abstract: Current imbalances between parallel switching devices in a power converter half leg are reduced. A gate driver generates a nominal PWM gate drive signal for a respective half leg. A first feedback loop couples the nominal PWM gate drive signal to a gate terminal of a respective first switching device. The first feedback loop has a first mutual inductance with a current path of a first parallel switching device and has a second mutual inductance with a current path of a second parallel switching device. The first and second mutual inductances are arranged to generate opposing voltages in the first feedback loop, so that when all the parallel switching devices carry equal current then the voltages cancel.Type: GrantFiled: May 20, 2019Date of Patent: July 27, 2021Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Zhuxian Xu, Chingchi Chen
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Patent number: 11063547Abstract: PWM control of first and second inverters that control a double-winding type rotating electric machine is performed with mode switching between asynchronous PWM and synchronous PWM. A first-group triangular wave used for the PWM control of the first inverter is switched from the asynchronous PWM to the synchronous PWM in first timing at which carrier phases of an asynchronous PWM triangular wave and a synchronous triangular wave are matched with each other. A second-group of triangular wave used for the PWM control of the second inverter is switched from the asynchronous PWM to the synchronous PWM in second timing at which the carrier phases of the asynchronous PWM triangular wave and the synchronous triangular wave are matched with each other.Type: GrantFiled: December 22, 2017Date of Patent: July 13, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Ryo Miyashita
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Patent number: 11052960Abstract: A central wheel structure transportation device with fore-aft auto-balancing. The auto-balancing is selectively enabled (and disabled) to improve rider experience, safety and ease of mounting and use. In one embodiment, during mounting, auto-balancing is not enabled until the lateral tilt angle of the device is below a given threshold from vertical. Fore-aft sensors, lateral tilt sensors, foot presence sensors, and/or accelerometers, or the like, may be used in various combinations to affect device operation and performance.Type: GrantFiled: February 22, 2019Date of Patent: July 6, 2021Inventor: Shane Chen
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Patent number: 11046388Abstract: A drive system includes an electric motor, first and second electrical contacts, and a microcontroller configured or programmed to control an operation of the electric motor based on first and second signals regarding states of the first and second electrical contacts. After determining that a first state in which the first signal and the second signal both indicate OFF is detected, if it is determined that a second state in which the first signal and the second signal both indicate ON is detected, the microcontroller performs a control that causes the electric motor to generate motive power. If it is determined that the first state is not detected, the microcontroller does not perform a control that causes the electric motor to generate motive power, even if both of the first electrical contact and the second electrical contact take an ON state.Type: GrantFiled: March 28, 2019Date of Patent: June 29, 2021Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Yutaka Saruwatari
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Patent number: 11031770Abstract: 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: GrantFiled: April 26, 2017Date of Patent: June 8, 2021Assignee: MAKITA CORPORATIONInventors: Yuta Izutsu, Katsuhito Fujinami, Akira Ito
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Patent number: 11031889Abstract: 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: GrantFiled: February 20, 2020Date of Patent: June 8, 2021Assignee: AUDI AGInventors: Matthias Hartmann, Stefan Maiwald
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Patent number: 11016465Abstract: 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: GrantFiled: June 2, 2016Date of Patent: May 25, 2021Assignee: SCHNEIDER ELECTRIC INDUSTRIES SASInventor: Richard Tonet
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Patent number: 11007877Abstract: 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: GrantFiled: November 9, 2017Date of Patent: May 18, 2021Assignee: AUDI AGInventor: Jochen Borgmann
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Patent number: 11002786Abstract: 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: GrantFiled: October 4, 2017Date of Patent: May 11, 2021Assignee: Robert Bosch GmbHInventors: Roland Schleser, Stephan Hanel
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Patent number: 10994618Abstract: 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: GrantFiled: May 31, 2017Date of Patent: May 4, 2021Inventors: Matthias Töns, Martin Brüll, Martin Ehrmann, Hans-Peter Feustel, Franz Pfeilschifter
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Patent number: 10988025Abstract: 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: GrantFiled: June 17, 2015Date of Patent: April 27, 2021Assignee: ABB SCHWEIZ AGInventors: Jonas Neander, Krister Landernäs, Linus Thrybom, Mikael Gidlund
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Patent number: 10985672Abstract: 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: GrantFiled: May 8, 2018Date of Patent: April 20, 2021Assignee: MEIDENSHA CORPORATIONInventor: Yasumasa Miyamoto
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Patent number: 10985587Abstract: 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: GrantFiled: August 7, 2018Date of Patent: April 20, 2021Assignee: Intel CorporationInventors: Naoki Matsumura, Simon N. Peffers, Steven Lloyd, Michael T. Crocker, Aaron Gorius
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Patent number: 10985632Abstract: 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: GrantFiled: October 4, 2018Date of Patent: April 20, 2021Inventor: John Maslowski
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Patent number: 10978256Abstract: 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: GrantFiled: March 18, 2014Date of Patent: April 13, 2021Assignee: Innovative Switchgear IP, LLCInventor: Roger L. Schafer
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Patent number: 10974672Abstract: 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: GrantFiled: July 16, 2018Date of Patent: April 13, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventors: Sho Kato, Osamu Yumita
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Patent number: 10968842Abstract: 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: GrantFiled: June 29, 2018Date of Patent: April 6, 2021Assignee: TRANSPORTATION IP HOLDINGS, LLCInventors: Arijit Banerjee, Ajith Kuttainnair Kumar, Arvind Kumar Tiwari, Rupam Mukherjee, Somakumar Ramachandrapanicker, Paul Lloyd Flynn, Boyanapally Srilatha
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Patent number: 10967746Abstract: 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: GrantFiled: December 24, 2018Date of Patent: April 6, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yoshihiko Hiroe
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Patent number: 10972026Abstract: 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: GrantFiled: March 24, 2017Date of Patent: April 6, 2021Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Seiji Hidaka, Kazuki Sugimori
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Patent number: 10960875Abstract: 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: GrantFiled: November 27, 2018Date of Patent: March 30, 2021Assignee: Ford Global Technologies, LLCInventors: Dushyant K. Palejiya, Rajit Johri, Jason Meyer
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Patent number: 10965127Abstract: 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: GrantFiled: September 19, 2019Date of Patent: March 30, 2021Assignee: YAZAKI CORPORATIONInventor: Shuuji Satake
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Patent number: 10946750Abstract: 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: GrantFiled: November 2, 2016Date of Patent: March 16, 2021Assignee: OMRON CORPORATIONInventors: Hiromasa Takatsuka, Junichi Wada, Kazuki Kasai
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Patent number: 10940771Abstract: 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: GrantFiled: October 17, 2019Date of Patent: March 9, 2021Assignee: GM Global Technology Operations LLCInventors: Alireza Fatemi, Thomas W. Nehl, Chandra S. Namuduri, Lei Hao, Norman K. Bucknor
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Patent number: 10921838Abstract: 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: GrantFiled: November 9, 2012Date of Patent: February 16, 2021Assignee: Audi AGInventor: Daniel F. Orlowski
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Patent number: 10924032Abstract: 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: GrantFiled: June 25, 2019Date of Patent: February 16, 2021Assignee: Schmidhauser AGInventor: Andreas Burgermeister
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Patent number: 10924033Abstract: 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: GrantFiled: June 25, 2019Date of Patent: February 16, 2021Assignee: Schmidhauser AGInventor: Andreas Burgermeister
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Patent number: 10916957Abstract: 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: GrantFiled: August 14, 2017Date of Patent: February 9, 2021Assignee: NISSAN MOTOR CO., LTD.Inventor: Koichi Tanaka
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Patent number: 10917000Abstract: 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: GrantFiled: December 12, 2018Date of Patent: February 9, 2021Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBHInventors: Philip Hubner, Alexander Bucher
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Patent number: 10910981Abstract: 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: GrantFiled: March 8, 2019Date of Patent: February 2, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Fumiki Tanahashi
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Patent number: 10898185Abstract: 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: GrantFiled: October 18, 2018Date of Patent: January 26, 2021Assignee: Ethicon LLCInventors: Mark D. Overmyer, Brett E. Swensgard, Shane R. Adams, Thomas W. Lytle, IV, Richard L. Leimbach, Frederick E. Shelton, IV, Kevin L. Houser
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Patent number: 10899231Abstract: 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: GrantFiled: March 14, 2019Date of Patent: January 26, 2021Assignee: Ford Global Technologies, LLCInventors: Xi Lu, Michael W. Degner, Krishna Prasad Bhat, Ke Zou
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Patent number: 10889177Abstract: 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: GrantFiled: September 27, 2019Date of Patent: January 12, 2021Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Bernhard Hoess, Thomas Jung, Sebastian Kobler
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Patent number: 10890564Abstract: 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 toType: GrantFiled: March 12, 2019Date of Patent: January 12, 2021Assignee: SENSOR NETWORKS, INC.Inventors: Bruce A. Pellegrino, James Barshinger
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Patent number: 10889202Abstract: 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: GrantFiled: March 29, 2019Date of Patent: January 12, 2021Assignee: Honda Motor Co., Ltd.Inventors: Kazuya Oyama, Hirokazu Oguma
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Patent number: 10886764Abstract: 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: GrantFiled: November 27, 2015Date of Patent: January 5, 2021Assignee: Koki Holdings Co., Ltd.Inventors: Yoshikazu Kawano, Kazuhiko Funabashi, Toshiaki Koizumi, Hironori Mashiko
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Patent number: 10875408Abstract: 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: GrantFiled: February 26, 2019Date of Patent: December 29, 2020Assignee: DENSO CORPORATIONInventors: Chinatsu Washizu, Shigeru Maeda, Kousuke Baba, Masaru Suzuki
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Patent number: 10857903Abstract: 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: GrantFiled: March 29, 2016Date of Patent: December 8, 2020Assignee: DENSO CORPORATIONInventors: Koji Sakai, Tomoyuki Sumi
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Patent number: 10854933Abstract: 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: GrantFiled: January 18, 2019Date of Patent: December 1, 2020Assignee: GM Global Technology Operations LLCInventors: Lei Hao, Yue-Yun Wang, Chandra S. Namuduri, Suresh Gopalakrishnan, Thomas W. Nehl, Dongxu Li
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Patent number: 10850795Abstract: 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: GrantFiled: January 27, 2020Date of Patent: December 1, 2020Assignee: ASAHI DENSO CO., LTD.Inventors: Yukio Oshiro, Yohei Mimura
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Patent number: 10855218Abstract: 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: GrantFiled: April 6, 2017Date of Patent: December 1, 2020Assignee: SHENZHEN YUNLIN ELECTRIC CO., LTD.Inventor: Jing Zhang
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Patent number: 10850763Abstract: 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: GrantFiled: January 10, 2018Date of Patent: December 1, 2020Assignee: JTEKT CORPORATIONInventors: Naoki Yamano, Hidenori Itamoto
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Patent number: 10840559Abstract: 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: GrantFiled: October 21, 2016Date of Patent: November 17, 2020Assignee: Black & Decker Inc.Inventors: Matthew J. Velderman, Daniel J. White, Daniel Fitzgerald, Ryan Klee
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Patent number: 10833523Abstract: 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: GrantFiled: June 10, 2014Date of Patent: November 10, 2020Assignee: KAGRA INC.Inventor: Akihiro Hikosaka
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Patent number: 10833623Abstract: 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: GrantFiled: December 11, 2018Date of Patent: November 10, 2020Assignee: Denso CorporationInventor: Wataru Nakayama
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Patent number: 10826409Abstract: 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: GrantFiled: March 8, 2019Date of Patent: November 3, 2020Assignee: THALESInventors: Frédéric Lacaux, Stéphane Guguen, Joël Devautour
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Patent number: 10822858Abstract: 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: GrantFiled: July 24, 2018Date of Patent: November 3, 2020Assignee: GMI Holdings, Inc.Inventors: Greg Matias, Brent Buescher, Jr., Dan Punchak
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Patent number: 10819099Abstract: 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: GrantFiled: March 28, 2017Date of Patent: October 27, 2020Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Kosei Maekawa, Hiromichi Yasunori
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Patent number: 10811964Abstract: 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: GrantFiled: December 16, 2019Date of Patent: October 20, 2020Assignee: Whirlpool CorporationInventor: Daniel Quinn