公开(公告)号：US11763971B2

公开(公告)日：2023-09-19

申请号：US17855116

申请日：2022-06-30

申请人： Apple Inc.

发明人： Darya Amin-Shahidi ,  Hari Vasudevan ,  Juil Lee ,  Denis G. Chen

IPC分类号： H01F7/18 ,  G06F3/01 ,  G06F3/041 ,  H02P25/08 ,  H02P25/092 ,  H01H47/04

CPC分类号： H01F7/1844 ,  G06F3/016 ,  G06F3/041 ,  H02P25/08 ,  H02P25/092 ,  H01F2007/185 ,  H01F2007/1855 ,  H01F2007/1861 ,  H01H2047/046

摘要： Disclosed herein are reluctance actuators and methods for feedback control of their applied force. Embodiments of the reluctance actuators include an electromagnet positioned to deflect a metallic plate to provide a haptic output. The control of the force is provided without force sensors (sensorless control) by monitoring voltage and/or current (V/I) applied during an actuation. For a given intended force output, an electrical parameter value (flux, current, or other parameter) is read from a look up table (LUT). The LUT may store a present value of the inductance of the reluctance actuator. The feedback control may be a quasi-static control in which the LUT is updated after actuation based on the monitored V/I. The feedback control may be real-time, with a controller comparing an estimated electrical parameter value based on the measured V/I with the value from the LUT.

公开(公告)号：US20180367078A1

公开(公告)日：2018-12-20

申请号：US15787444

申请日：2017-10-18

申请人： Software Motor Corporation

发明人： Trevor A. Creary ,  Mahesh Krishnamurthy ,  Piyush C. Desai ,  Mark Johnston ,  Timothy Knodel

IPC分类号： H02P25/089 ,  H02P25/092

CPC分类号： H02P25/089 ,  H02P25/092 ,  H02P2203/01 ,  H02P2205/01

摘要： A method and apparatus for quasi-sensorless adaptive control of a high rotor pole switched-reluctance motor (HRSRM). The method comprises the steps of: applying a voltage pulse to an inactive phase winding and measuring current response in each inactive winding. Motor index pulses are used for speed calculation and to establish a time base. Slope of the current is continuously monitored which allows the shaft speed to be updated multiple times and to track any change in speed and fix the dwell angle based on the shaft speed. The apparatus for quasi-sensorless control of a high rotor pole switched-reluctance motor (HRSRM) comprises a switched-reluctance motor having a stator and a rotor, a three-phase inverter controlled by a processor connected to the switched-reluctance motor, a load and a converter.

公开(公告)号：US20180283545A1

公开(公告)日：2018-10-04

申请号：US15919438

申请日：2018-03-13

申请人： DENSO CORPORATION

发明人： Jun YAMADA

IPC分类号： F16H61/32 ,  H02P25/092 ,  F16H61/24 ,  F16H61/12 ,  F16H63/38

CPC分类号： F16H61/32 ,  F16H61/12 ,  F16H61/24 ,  F16H63/38 ,  F16H2061/0053 ,  F16H2061/0087 ,  F16H2061/247 ,  F16H2061/326 ,  H02K11/215 ,  H02P6/17 ,  H02P25/092

摘要： A shift range controller includes a target speed setter that sets a target motor speed for a motor based on an angle deviation between a current rotation position of the motor and a target rotation position based on a requested shift range. A requested duty calculator calculates a requested duty as a drive control amount for driving the motor based on the target motor speed. The target speed setter receives a feedback of the requested duty, and changes the target motor speed at a deceleration time based on the feedback of the requested duty. By changing the target motor speed based on the requested duty, the target motor speed is optimized for responding to impediment-causing factors such as temperature and friction. In such manner, the shift range switching responsiveness is improved.

公开(公告)号：US09991837B2

公开(公告)日：2018-06-05

申请号：US15601823

申请日：2017-05-22

申请人： Continuous Solutions LLC

发明人： Nir Vaks ,  Nyah Zarate ,  Xiaoqi Wang

IPC分类号： F28F27/00 ,  G05B5/01 ,  H02P6/10 ,  H02P25/098 ,  H02P25/086 ,  H02P25/092

CPC分类号： H02P25/098 ,  H02P25/086 ,  H02P25/092

摘要： Systems and methods to manipulate the noise and vibration of a switched reluctance machine (SRM), capable of being implemented in a controller. By use of vibration sensors and a real-time optimizer, the noise and vibration profile of an SRM and associated load can be modified in order to meet multiple control objectives, such as torque ripple mitigation (TRM), harmonic spectrum shaping, and efficiency improvement. The systems and methods can be adapted to high power, high pole count, and high speed applications, and applications where electrical or mechanical imbalance exists.

公开(公告)号：US09917530B2

公开(公告)日：2018-03-13

申请号：US15285273

申请日：2016-10-04

申请人： Cummins Power Generation IP, Inc.

发明人： Robert Dziuba ,  Filip Stepancik ,  Jaroslaw Leonarski ,  Yefrem I. Pekar

IPC分类号： H02P25/08 ,  H02M7/00 ,  H02P25/092 ,  H02M1/088 ,  H02M7/537 ,  H02M1/00

CPC分类号： H02M7/003 ,  H02M1/088 ,  H02M7/537 ,  H02M7/5387 ,  H02M2001/0009 ,  H02P25/092 ,  H05K7/1432

摘要： A reconfigurable converter includes a power circuit receives a direct current (DC) power signal and provides an alternating current (AC) output signal across at least three phases. The power circuit comprises a plurality of legs, each leg comprising an output node. A coupling device provides a first output configuration and a second output configuration for the plurality of legs. In the first output configuration, the coupling device comprises a coupling portion coupling at least two output nodes to provide a common output terminal. In the second output configuration, the coupling device comprises separate output terminals, each connected to one of the at least two output nodes.

公开(公告)号：US20180062554A1

公开(公告)日：2018-03-01

申请号：US15673517

申请日：2017-08-10

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Junichi DEGUCHI ,  Makoto FUNAHASHI ,  Kensuke YOSHIZUE

IPC分类号： H02P25/083 ,  H02P25/092 ,  H02P6/08

CPC分类号： H02P25/083 ,  H02P6/085 ,  H02P25/092

摘要： An electronic control unit switches a switching circuit such that a switched reluctance motor has a first winding pattern, when, with respect to a boundary dividing a driving range of the switched reluctance motor into two ranges, a torque and a rotational speed of the switched reluctance motor that are determined according to an applied voltage are located in the first range on the low load side. The electronic control unit switches the switching circuit such that the switched reluctance motor has a second winding pattern, when the torque and the rotational speed of the switched reluctance motor are located in a second range different from the first range.

公开(公告)号：US09887657B2

公开(公告)日：2018-02-06

申请号：US15291992

申请日：2016-10-12

申请人： NIDEC SR DRIVES LTD.

发明人： Michael Paul Tankard ,  Paul Andrew Sykes ,  Ian Jordison

IPC分类号： H02P6/16 ,  H02P25/092 ,  H02P29/024 ,  H02P1/16 ,  H02P27/06

CPC分类号： H02P25/092 ,  H02P1/163 ,  H02P6/16 ,  H02P27/06 ,  H02P29/024 ,  H02P29/0241

摘要： A controller for a switched reluctance machine is operated to close a switch which would otherwise be open so as to connect a phase winding to the DC link to which the winding is connected during other parts of the electrical cycle. This produces a condition which allows the insulation of the system to be monitored by applying a voltage between the DC link and ground.

公开(公告)号：US20180006592A1

公开(公告)日：2018-01-04

申请号：US15543696

申请日：2016-01-15

申请人： Punch Powertrain N.V.

发明人： Saphir Elias FAID ,  Fabrice BOON

IPC分类号： H02P25/18 ,  H02P9/40 ,  H02P25/086 ,  H02K19/10 ,  H02K3/28 ,  H02P25/092 ,  H02K21/16 ,  H02K16/04 ,  H02P6/182

CPC分类号： H02P25/188 ,  H02K3/28 ,  H02K16/04 ,  H02K19/103 ,  H02K21/16 ,  H02P6/182 ,  H02P9/40 ,  H02P25/08 ,  H02P25/086 ,  H02P25/092 ,  H02P25/0925 ,  H02P25/18

摘要： The invention involves a switched reluctance motor, comprising a stator and a rotor rotatable relative to the stator. The stator comprises several circumferentially arranged coils and stator poles, the stator poles forming the cores of the coils. The rotor comprises several counter poles for interacting with the stator poles for applying a reluctance torque on the rotor. The motor comprises phase inputs for receiving an actuation signal for actuating one or more phase stages. Each stator coil is associated with a phase stage, such that each phase stage comprises at least two coils. Each phase stage comprises a circuit stage including a switching arrangement comprising switches for selectively switching the coils of said phase stage in either one of a parallel, a serial, or a parallel-serial electrical configuration.

公开(公告)号：US09806657B2

公开(公告)日：2017-10-31

申请号：US15035761

申请日：2014-11-12

申请人： Sevcon Limited

发明人： Peter Barrass

IPC分类号： H02K21/00 ,  H02P25/08 ,  H02P25/092 ,  H02K1/14 ,  H02K1/24 ,  H02P6/22

CPC分类号： H02P25/08 ,  H02K1/14 ,  H02K1/246 ,  H02P6/22 ,  H02P25/092 ,  H02P25/0925

摘要： A short pitched switched reluctance motor control apparatus comprising a voltage provider comprising a first coupling and a second coupling configured to be coupled to a phase winding of the switched reluctance motor for applying a voltage to drive current in the winding between the first and second coupling is disclosed. The apparatus further comprises a controller configured to apply a first voltage pulse to the first coupling, and to apply a second voltage pulse to the second coupling, wherein the start of the second pulse is delayed with respect to the start of the first pulse, and the end of the first pulse is delayed with respect to the end of the second pulse.

公开(公告)号：US09647594B2

公开(公告)日：2017-05-09

申请号：US14902338

申请日：2015-01-07

申请人： Xiping Chen

发明人： Xiping Chen

IPC分类号： H02K33/00 ,  H02P25/092

CPC分类号： H02P25/092

摘要： A flyback control mode-based controller includes a power supply circuit, a position-checking circuit, a current-checking circuit, a control circuit, and a power output circuit. The power output circuit includes a controlled energy conversion unit. The energy conversion unit includes a control switch and an energy conversion circuit. The energy conversion circuit uses the capacitor C circuit, the inductor L circuit, or the LC circuit to connect parallelly or serially with an inductor in a motor winding L so as to form an oscillation circuit, such that periodic oscillations with attenuation are enabled by relying on the energy stored in the motor winding L. By applying the controller to motors having forward control mode or motors having flyback control mode, the current to be released by the motor during discharging can be repeated used, thereby achieving maximum energy conservation.