Patents Examined by Zoheb S Imtiaz
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Patent number: 11979105Abstract: Disclosed are an apparatus and method for controlling a motor. An exemplary embodiment of the present disclosure provides an apparatus for controlling an operation of a motor, the apparatus including: a first motor control unit connected to a first winding part of the motor and configured to control the operation of the motor; and a second motor control unit connected to a second winding part of the motor and configured to control the operation of the motor, in which the first motor control unit turns on or off current paths formed between the first motor control unit and the motor by controlling switches included in the first motor control unit, and the second motor control unit turns on or off current paths formed between the second motor control unit and the motor by controlling switches included in the second motor control unit.Type: GrantFiled: March 21, 2022Date of Patent: May 7, 2024Assignee: HL MANDO CORPORATIONInventor: Taesik Kim
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Patent number: 11977270Abstract: Actuators for carrying and actuating a lens having a first optical axis, the lens receiving light folded from a second optical axis substantially perpendicular to the first optical axis, comprising first and second VCM engines coupled to the lens and first and second linear ball-guided rails operative to create movement of the lens in two substantially orthogonal directions upon actuation by respective VCM engines.Type: GrantFiled: December 8, 2022Date of Patent: May 7, 2024Assignee: Corephotonics Lid.Inventors: Gil Bachar, Itay Yedid, Gal Shabtay, Ephraim Goldenberg, Gal Avivi, Itay Jerby
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Patent number: 11973446Abstract: Linear electric motor comprising a stator comprising a plurality of stator segments and a drive system comprising at least one pair of drive units, a first drive unit of said pair connected to a first stator segment and a second drive unit of said pair connected to a second stator segment adjacent the first stator segment, the drive units connected to a DC voltage source, each drive unit comprising a DC input circuit section and a multi-level inverter connected to the DC voltage source via the DC input section, the multi-level inverter comprising a multiphase output connected to coils of the corresponding stator segment. The DC circuit section of the drive units comprises at least two link capacitors (C1, C2) connected between a positive and a negative voltage supply line (V+, V?) and having a mid-point therebetween.Type: GrantFiled: March 4, 2022Date of Patent: April 30, 2024Assignee: HYPER POLAND ELECTRO S.A.Inventors: Marek Michalczuk, Marcin Nikoniuk, Pawel Radziszewski
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Patent number: 11973450Abstract: Disclosed are a current detection circuit and a garbage can. The current detection circuit may include: a first switching device for being connected with a first current driving end of the direct current motor; a second switching device for being connected with a second current driving end of the direct current motor; a third switching device for being connected with the second current driving end of the direct current motor; a fourth switching device for being connected with the first current driving end of the direct current motor; a control chip, the first switching device, the second switching device, the third switching device and the fourth switching device are all electrically connected with the control chip; and a current detection module, the control chip is connected to a detection output end of the current detection module.Type: GrantFiled: March 9, 2022Date of Patent: April 30, 2024Assignee: Jiangmen Jinlong High Technology Industrial Co., Ltd.Inventors: Jinsheng Liao, Weitang Lu
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Patent number: 11967915Abstract: The vibration and noise generated in a permanent magnet synchronous motor are effectively suppressed. A motor control device 1 comprises: a triangular wave generation unit 17 which generates a triangular wave signal Tr that is a carrier wave, a carrier frequency adjustment unit 16 which adjusts a carrier frequency fc that represents a frequency of the triangular wave signal Tr, and a gate signal generation unit 18 which performs pulse-width modulation on three-phase voltage commands Vu*, Vv*, Vw* according to a torque command T* using the triangular wave signal Tr, thereby generating a gate signal for controlling an operation of an inverter. The carrier frequency adjustment unit 16 adjusts the carrier frequency fc so as to change a voltage phase error ??v representing a phase difference of the three-phase voltage commands Vu*, Vv*, Vw* and the triangular wave signal Tr based on the torque command T*, and a rotation speed ?r of a motor.Type: GrantFiled: November 4, 2020Date of Patent: April 23, 2024Assignee: Hitachi Astemo, Ltd.Inventors: Takaya Tsukagoshi, Takafumi Hara, Katsuhiro Hoshino, Toshiyuki Ajima
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Patent number: 11953559Abstract: A driving related system that may include an integrated circuit (IC) that may include IC conductors and test unit; a PCB that may include PCB conductors; intermediate conductors for coupling the IC conductors to the PCB conductors; wherein the test unit is configured to: electrically test a continuity of a first conductive path that comprises a first group of intermediate conductors, a first group of IC conductors and a first group of PCB conductors; and generate a continuity fault indication when detecting a discontinuity of the first conductive path; and wherein the driving related system is configured to perform a safety measure, in response to a generation of one or more continuity fault indications.Type: GrantFiled: May 28, 2019Date of Patent: April 9, 2024Assignee: Mobileye Vision Technologies Ltd.Inventors: Efraim Mangell, Elchanan Rushinek, Leonid Smolyansky, Giora Yorav
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Patent number: 11955848Abstract: A method of calibrating a motor assembly includes selecting an electric motor and a motor controller for the motor assembly, obtaining at least one electric motor parameter of the electric motor, calculating a correction factor for the electric motor based upon the at least one electric motor parameter, and programming the motor controller with the correction factor.Type: GrantFiled: February 22, 2023Date of Patent: April 9, 2024Assignee: Lennox Industries Inc.Inventors: Nasim Rahman, Wei Wang, Yan Yang, Ty Winkler
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Patent number: 11944012Abstract: A method for transmitting data from an actuator to a control unit controlling the actuator. The control unit controls a piezoelectric element contained in the actuator. In order to transmit the data, in the actuator, a load being or not being connected in parallel with the piezoelectric element.Type: GrantFiled: September 22, 2021Date of Patent: March 26, 2024Assignee: ROBERT BOSCH GMBHInventors: Andreas Kneer, Andreas Hempel, Charlotte Summerer, Dieter Elshuber, Dieter Schuler, Markus Ditlevsen, Yannick Chauvet
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Patent number: 11936316Abstract: A method of controlling a permanent magnet synchronous machine (PMSM) includes: determining an estimated back-electromotive force (BEMF) generated in windings of the PMSM based on an estimated voltage applied to the windings of the PMSM, an estimated motor current of the PMSM, an estimated motor circuit resistance, and an estimated synchronous inductance of the PMSM. The method also includes determining an estimated permanent magnet (PM) flux linkage in the PMSM based on the estimated motor current of the PMSM; determining a BEMF correction term based on the estimated PM flux linkage; and determining an estimated rotor flux space vector based on the estimated BEMF and the BEMF correction term.Type: GrantFiled: July 12, 2022Date of Patent: March 19, 2024Assignee: Steering Solutions IP Holding CorporationInventors: Pawel Szymula, Prerit Pramod
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Patent number: 11936317Abstract: A representative fault-tolerant rotating electromechanical actuator comprises a permanent magnet synchronous motor with first and second windings that each comprise three phases. First and second voltage source inverters (VSI) provide output signals independently with respect to each other. The first VSI provides output signals to drive the three phases of the first winding, and the second VSI provides output signals to drive the three phases of the second winding. The three phases of the first winding are driven simultaneously with the three phases of the second winding. Control electronics monitor signals associated with the three phases of the windings and detect a fault condition within a first phase of the first winding. The control electronics command the first VSI to drive only second and third phases of the first winding while simultaneously commanding the second VSI to drive the three phases of the second winding.Type: GrantFiled: February 10, 2021Date of Patent: March 19, 2024Assignee: Blue Origin, LLCInventors: Vladan Jevremovic, Adrian Alberto Galindo, Austin Gaspar
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Patent number: 11929695Abstract: A control device which includes a power conversion circuit configured to supply driving power to an electric motor, a magnetic flux estimation circuit configured to estimate a primary magnetic flux of the motor, and a voltage command generation circuit (control circuit) configured to control the conversion circuit based on an estimation result of the primary magnetic flux, in which the estimation circuit performs, when an operating speed of the motor is less than a predetermined level, a first estimation of estimating the primary magnetic flux based on an output current to the motor and an inductance thereof, and performs, when the speed exceeds a predetermined level, a second estimation of estimating the primary magnetic flux by estimating a magnetic flux differential value based on an output voltage of the conversion circuit and integrating the value using, as an initial value, an estimation result by the first estimation.Type: GrantFiled: January 14, 2022Date of Patent: March 12, 2024Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Takahiro Saeki, Shingo Fukumaru
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Patent number: 11926374Abstract: The embodiments of the present disclosure relate to a torque compensating device and method. Specifically, the torque compensating device according to the present disclosure may include a compensation torque amount calculator for calculating a compensation torque amount by performing band pass filtering on a frequency corresponding to a vehicle speed of a host vehicle, an inverse compensation torque generator for generating an inverse compensation torque if it is determined that judder and shimmy of a steering wheel have occurred based on the compensation torque amount, and a controller configured to control the generation of the inverse compensation torque to be stopped by determining to be a temporary kickback if the compensation torque amount is calculated to be less than or equal to a first reference value.Type: GrantFiled: January 6, 2022Date of Patent: March 12, 2024Assignee: HL MANDO CORPORATIONInventor: Yeong Jin Jeong
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Patent number: 11929676Abstract: A power conversion apparatus includes a converter circuit converting alternating current voltage output from an AC power supply into direct current voltage. The converter circuit includes unit converters. The power conversion apparatus generates a reference duty based on detection values of a current detector and a voltage detector, and generates a pulse width modulation signal based on a result of comparison between a carrier signal and a corrected duty obtained by correcting the reference duty. When a first reference duty in a first carrier period differs from a second reference duty in a second carrier period subsequent to the first carrier period, a first corrected duty of a first phase in a first carrier period in one power supply period after and a second corrected duty of a second phase in the first carrier period in one power supply period after are controlled to have different values.Type: GrantFiled: November 14, 2019Date of Patent: March 12, 2024Assignee: Mitsubishi Electric CorporationInventors: Motoya Suzuki, Kenji Iwazaki, Satoru Ichiki, Koichi Arisawa
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Patent number: 11919402Abstract: A relay control apparatus and method is capable of retaining the operation state of a plurality of relays even when a processor is reset due to a system error. Therefore, the relay control apparatus and method has an advantage of preventing an accident caused by the reset of the processor since the operation state of a plurality of relays is maintained even when the processor is reset. In addition, if the operation state of the processor is a reset state even after a predetermined time passes, the operation state of the plurality of relays is changed to a turn-off state, and thus there is an advantage of preventing system resources and energy from being wasted.Type: GrantFiled: April 29, 2021Date of Patent: March 5, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Jang-Hyeok Choi, Do-Hyeok Kang
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Patent number: 11916499Abstract: A linear transport system comprises a first carriage and a second carriage, a linear motor for driving the first carriage and the second carriage and a guide rail. The linear motor comprises a stator and a first and a second rotor. The stator has a plurality of drive coils that are arranged along the guide rail individual motor modules comprise a plurality of drive coils. The first rotor is arranged on the first carriage and the second rotor is arranged on the second carriage. The first carriage has a first magnetic field generator. The second carriage has a second magnetic field generator. The first magnetic field generator differs from the second magnetic field generator at least in terms of its magnetic vector field, wherein the magnetic fields of the magnetic field generators are detected to identify the corresponding carriage.Type: GrantFiled: February 2, 2021Date of Patent: February 27, 2024Assignee: Beckhoff Automation GmbHInventors: Tobias Schönke, Marco Grabowski, Jan Achterberg, Manuel Bettenworth, Uwe Prüssmeier
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Patent number: 11916506Abstract: A motor control device includes a motor, a drive circuit, a current detection unit, and a control unit. The motor has a plurality of phases of motor windings. The drive circuit is provided on a low potential side of the motor windings. The current detection unit has current detection resistors corresponding to each phase, and is provided on a low potential side of the drive circuit. The control unit includes an actuator control unit and an abnormality diagnosis unit. The abnormality diagnosis unit determines that the current detection unit is abnormal, when a difference between a maximum current, which is a maximum value of the phase current when a same duty ratio is commanded to each phase, and a minimum current, which is a minimum value of the phase current when a same duty ratio is commanded to each phase, is equal to or greater than an abnormality determination threshold.Type: GrantFiled: July 12, 2022Date of Patent: February 27, 2024Assignee: DENSO CORPORATIONInventor: Yusaku Kawaguchi
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Patent number: 11916500Abstract: Techniques and methods related to a multi-mode operation of a synchronous electrical generator. The synchronous generator is configurable in at least two modes: a grid-power mode and a power-generation mode. In the power-generation mode, electrical power is generated in response to power produced by a prime mover. In the grid-power mode, the rotor is in standstill mode, and the configurable rotor winding is configured to generate a plurality of AC magnetic fields. The system provides for seamless transfer of power between grid-power to power generation using an energy storage unit and associated power conditioning apparatus.Type: GrantFiled: December 20, 2021Date of Patent: February 27, 2024Assignee: RAYTHEON COMPANYInventors: Stephen Kuznetsov, Eric Stich
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Patent number: 11916501Abstract: A driving device drives a motor including a rotor having a neodymium rare earth magnet. The driving device includes an inverter, a first detector that outputs a first detection signal corresponding to a motor driving current supplied to the motor, a protection level setting unit that sets an overcurrent protection level, a second detector that outputs a second detection signal corresponding to a driving state of the motor, and a control device. The control device executes first control of lowering the motor driving current immediately after the motor driving current corresponding to the first detection signal exceeds the overcurrent protection level. When the protection level setting unit lowers the overcurrent protection level to a new current level based on the second detection signal, the control device executes second control of lowering the motor driving current to a level lower than the new current level.Type: GrantFiled: November 21, 2018Date of Patent: February 27, 2024Assignee: Mitsubishi Electric CorporationInventor: Masahiro Nigo
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Patent number: 11901781Abstract: A brushless electrical machine, in particular, a brushless d.c. motor, having a housing, at least one rotor, which is positioned on a shaft rotationally mounted in the housing, and a stator attached to the housing; the rotor being assigned a rotor position detection device, which operates contactlessly and includes a multipole magnetic ring positioned on the shaft in a rotatably fixed manner and at least one sensor, which is sensitive to magnetic fields and is attached to the housing radially with respect to the outer circumference of the magnetic ring. The number of pole pairs of the rotor and the number of pole pairs of the magnetic ring are coprime.Type: GrantFiled: December 18, 2018Date of Patent: February 13, 2024Assignee: ROBERT BOSCH GMBHInventors: Christian Binder, Oliver Fuchs
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Patent number: 11890950Abstract: A system having electric consumers includes an electrical device including an operating device and wires supplying the consumer. A first wire is provided for conducting the first phase of a three-phase voltage during a normal operation, a second wire conducts a second phase of the three-phase voltage, and a third wire conducts a third phase of the three-phase voltage. The consumer is able to be supplied with the three-phase voltage from the wires during a normal operation. The operating device is configured so that: in a normal operation, the first wire is connected to the first phase of the three-phase voltage; and in a safety case, the first wire is separated from the first phase of the three-phase voltage and will be or is connected to the second phase of the three-phase voltage.Type: GrantFiled: October 24, 2019Date of Patent: February 6, 2024Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Rico Henkel, Martin Bund, Mario Epp, Stefan Hien