公开(公告)号：US12005806B2

公开(公告)日：2024-06-11

申请号：US17402109

申请日：2021-08-13

申请人： Premergy, Inc.

发明人： Richard Edward Botts ,  Lanier M. Davenport ,  Andrew L. Thomas

IPC分类号： B60L58/12 ,  B60L7/12 ,  B60L7/18 ,  B60L58/19 ,  B60T8/17 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00 ,  H02J7/14 ,  H02J7/35 ,  H02P3/14 ,  B60L53/51 ,  H02P101/45

CPC分类号： B60L58/12 ,  B60L7/12 ,  B60L7/18 ,  B60L58/19 ,  B60T8/17 ,  H01M10/425 ,  H01M10/441 ,  H01M10/482 ,  H02J7/0013 ,  H02J7/0024 ,  H02J7/0048 ,  H02J7/1423 ,  H02J7/35 ,  H02P3/14 ,  B60L53/51 ,  B60L2240/545 ,  B60L2240/547 ,  B60T2201/04 ,  B60T2250/00 ,  B60T2250/04 ,  B60T2270/60 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J2310/48 ,  H02P2101/45 ,  Y02T10/70

摘要： Systems and methods for dynamic control of a configuration of electrical circuits are provided. An example system includes a plurality of electric power sources and a plurality of switches configured to connect and disconnect some of the electric power sources. The system may include a controller coupled to the switches. The controller may be configured to enable and disable the switches to cause a change in a configuration of the connections between the electric power sources. The electric power sources can include at least one generator and at least two batteries. The controller can be further configured to cause a change in the configuration to connect the two batteries in series to a load for discharging and connect the two batteries in parallel to the generator for recharging.

公开(公告)号：US20240186919A1

公开(公告)日：2024-06-06

申请号：US18440369

申请日：2024-02-13

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Timothy R. Obermann ,  Alexander Huber

IPC分类号： H02P3/12 ,  B25F5/00 ,  H02P3/14 ,  H02P27/08

CPC分类号： H02P3/12 ,  B25F5/00 ,  H02P3/14 ,  H02P27/08

摘要： Apparatus and method for motor braking using selectively connectable resistance. The method includes controlling, using a motor controller of the power tool, a power switching network to drive a motor of the power tool in response to actuation of a user input and determining, using the motor controller, a variable tool characteristic. The method further includes determining, using the motor controller, that the user input is de-actuated. The method also includes controlling, using the motor controller, the power switching network to brake the motor when the variable tool characteristic satisfies the tool characteristic threshold and controlling, using the motor controller, a braking circuit to brake the motor when the variable tool characteristic does not satisfy the tool characteristic threshold. The braking circuit includes one or more resistive loads and is selectively coupled to the motor terminals of the motor.

公开(公告)号：US20240157804A1

公开(公告)日：2024-05-16

申请号：US17772954

申请日：2022-03-31

申请人： SANGSIN BRAKE CO., LTD.

发明人： Chang Hee YOO ,  Jung Gyu HWANG ,  Sun Man GWON ,  Hyun Jon CHO

IPC分类号： B60L7/16 ,  B60T13/74 ,  H02P3/14

CPC分类号： B60L7/16 ,  B60T13/74 ,  H02P3/14 ,  B60T2270/60

摘要： Disclosed is a regenerative braking power generation system for trailers configured such that a generator is installed in a brake disc space portion of a trailer to self-generate electricity necessary for the trailer, wherein the regenerative braking power generation system includes at least one axle (3) fixed to a chassis (2) of a trailer, a wheel hub (5) and/or a brake disc (6) axially installed at an outer surface of the axle (3) via a plurality of bearings (4) so as to be passively rotated, a space portion (7) concavely formed in one side surface of the brake disc (6), a permanent magnet (8) fixed to an inner circumferential surface of the space portion (7) in tight contact therewith, the permanent magnet being configured to be rotated along with the brake disc (6), and a generator stator (9) fixed to an outer circumferential surface of the axle (3) corresponding to the permanent magnet (8). AC power produced by the generator (10) is converted into DC power by a rectification unit (20) constituted by a plurality of full-wave diodes (D1, D2, D3, D4, D5, and D6) and a smoothing capacitor (C), a rechargeable battery (secondary battery) or a battery (40) is charged with the DC power by a charge controller (30), the DC power is supplied to a DC (direct current) load (50), and the power in the battery (40) is converted into AC power of 50 to 60 Hz by an inverter (60) and is supplied to an AC (alternating current) load (70).

公开(公告)号：US20240009882A1

公开(公告)日：2024-01-11

申请号：US18219388

申请日：2023-07-07

申请人： Black & Decker Inc.

发明人： HuaMing YAO ,  Yue TIAN ,  Jun LIU ,  Torrey R. LAMBERT ,  John S. MACEO, JR. ,  Jason D. McKILLICAN ,  YanJuan ZOU

IPC分类号： B27B5/38 ,  B27B9/00 ,  H02P3/14 ,  H02J7/14

CPC分类号： B27B5/38 ,  B27B9/00 ,  H02P3/14 ,  H02J7/1415

摘要： A cordless aw is provided with regenerative braking means that increases the number of repeated cuttings the saw is able to perform (x) per full discharge cycle of the battery pack, as compared to the number of repeated cuttings achievable by the same saw not employing a regenerative braking means (y) per full discharge cycle of the battery pack, such that x/y is approximately at least one of the following: i) 1.1 when cutting a Pressure-Treated (PT) lumber workpiece having a cross-sectional size of approximately 89 mm×89 mm±2 mm, ii) 1.15 when cutting a Spruce Pine Fir (SPF) lumber workpiece having a cross-sectional size of approximately 38 mm×89 mm±2 mm, or iii) 1.25 when cutting Medium Density Fiberboard (MDF) workpiece having a thickness of approximately 19 mm±1 mm and a width of approximately 76 mm±2 mm.

公开(公告)号：US11728672B2

公开(公告)日：2023-08-15

申请号：US16411238

申请日：2019-05-14

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Izabella Ferenczi ,  Lluis Roig ,  Andreas Rucker ,  Constantin Ferdinand Roesler

IPC分类号： H02P25/14 ,  H02P3/14 ,  H02P5/69 ,  H02J7/34 ,  B60L3/00 ,  B60L3/04 ,  H02J7/00 ,  B60L50/51

CPC分类号： H02J7/345 ,  B60L3/003 ,  B60L3/0046 ,  B60L3/0061 ,  B60L3/04 ,  H02J7/0031 ,  B60L50/51

摘要： A safety procedure is provided for a vehicle having high-current components and high-voltage components, in particular in a hybrid or electric vehicle. In the event of a crash, in addition to a physical separation of a battery from a HV intermediate circuit, the HV intermediate circuit is discharged.

公开(公告)号：US11682988B2

公开(公告)日：2023-06-20

申请号：US17685258

申请日：2022-03-02

申请人： Dyson Technology Limited

发明人： Libo Zheng ,  Min Zhang

IPC分类号： H02P1/46 ,  H02P3/14 ,  H02P1/02

CPC分类号： H02P1/46 ,  H02P1/029 ,  H02P3/14

摘要： A method is described for controlling an electric motor having a rotor. The method is carried out after a shutdown of the motor has been initiated. The method includes starting a timer in a motor controller, performing regenerative braking to recapture kinetic energy from the rotor as electrical energy, and using the recaptured electrical energy from the regenerative braking to power the motor controller. If the timer in the motor controller exceeds a predetermined timer value, a flag is set in memory in the motor controller to indicate that the motor has stopped.

公开(公告)号：US11673474B2

公开(公告)日：2023-06-13

申请号：US16731360

申请日：2019-12-31

申请人： Textron, Inc.

发明人： Russell William King ,  Kevin Douglas Grove

IPC分类号： H02P3/14 ,  B60L7/18 ,  B60L7/14 ,  B60L3/10

CPC分类号： B60L7/18 ,  B60L7/14 ,  B60L3/108 ,  B60L2200/22 ,  B60L2240/32 ,  B60L2250/26 ,  B60T2270/613

摘要： A technique controls regenerative braking to reduce skidding of a vehicle. Such a technique involves imparting rotation to an alternating current (AC) electric motor to move the vehicle to a first commanded vehicle speed; applying a regenerative braking power to the AC electric motor to bring the vehicle to a second commanded vehicle speed; while applying the regenerative braking power, adjusting the level of regenerative braking power applied to follow a predetermined speed reduction rate; while adjusting the level of regenerative braking power applied, provide a limit to the maximum level of regenerative braking power available; and while providing the limit to the maximum level of regenerative braking power available, adjusting the limit to the maximum level of regenerative braking power available based on a current speed of the vehicle.

公开(公告)号：US11626773B2

公开(公告)日：2023-04-11

申请号：US17188671

申请日：2021-03-01

申请人： Axiflux Holdings Pty Ltd

发明人： David Elias Jahshan

IPC分类号： H02P1/54 ,  H02K7/116 ,  H02K16/00 ,  H02P6/14 ,  H02P3/14 ,  H02P3/12 ,  H02P6/24 ,  B60L1/00 ,  B60L3/00 ,  B60L7/14 ,  B60L8/00 ,  B60L15/00 ,  B60L15/02 ,  B60L15/20 ,  H02P23/00 ,  H02K21/24 ,  H02K1/12 ,  H02K3/04 ,  H02K11/21 ,  H02K11/33 ,  B60L50/40 ,  B60L50/16 ,  B60L50/51 ,  B60L58/16 ,  B60L58/21 ,  B60L50/60 ,  B60L58/40 ,  H02P3/22 ,  H02P3/24 ,  B60K6/48 ,  B60K6/405 ,  B60K6/52

摘要： An electrical machine comprising: at least one stator, at least one module, the at least one module comprising at least one electromagnetic coil and at least one switch, the at least one module being attached to the at least one stator; at least one rotor with a plurality of magnets attached to the at least one rotor, an integrated electrical differential coupled to at least one of the rotors, the at least one integrated electrical differential permitting the at least one rotor to output at least two rotational outputs to corresponding shafts, wherein the at least two rotational outputs are able to move the shafts at different rotational velocities to one another. The electrical machine is configured to fit into a housing, and that can be retrofitted into a conventional vehicle by replacing the mechanical differential.

公开(公告)号：US11437946B2

公开(公告)日：2022-09-06

申请号：US17115795

申请日：2020-12-09

申请人： ANPEC ELECTRONICS CORPORATION

发明人： Li-Wei Chen ,  Shih-Hai Chien

IPC分类号： H02P3/14 ,  H03K5/24 ,  H02P23/14

摘要： A motor output stabilizing circuit and a method are provided. A sensor senses a positive voltage and a negative voltage that are generated with a change in magnetic field strength of a motor of which a rotor is rotating. A comparator compares the positive voltage with the negative voltage to output a Hall signal. An average counter records a first time during which the positive voltage is higher than the negative voltage and a second time during which the negative voltage is higher than the positive voltage, according to the Hall signal. The average counter then averages the first time and the second time to output an averaged time signal. A motor controller circuit controls a motor driver circuit to drive the motor according to the averaged time signal, such that the motor outputs a constant current.

公开(公告)号：US20220194504A1

公开(公告)日：2022-06-23

申请号：US17130808

申请日：2020-12-22

申请人： Lyft, Inc.

发明人： Pierre Pellerey ,  Nikola Popov ,  Scott McDaid ,  Adam Christopher Bender

IPC分类号： B62H5/18 ,  B62M6/45 ,  B60L50/60 ,  B60L7/10 ,  G05D1/00 ,  B62J43/10 ,  B62J43/30 ,  B62J45/20 ,  B62M6/90 ,  B62L1/00 ,  H02K7/00 ,  H02K11/00 ,  H02K11/33 ,  H02K21/22 ,  H02P3/14

摘要： Motor control systems and methods for micromobility transit vehicles are provided. A micromobility transit vehicle may include an electric motor configured to drive a rotation of a wheel. The electric motor may include a plurality of windings and a plurality of switching circuits. The switching circuits may be configured to selectively direct current from a power supply through the windings to generate a torque by the electric motor to drive the rotation of the wheel in response to associated control signals. The switching circuits may be configured to passively bypass the windings in response to an interruption of the control signals. Depletion of the power supply may result in the interruption of the control signals.