公开(公告)号：US20240213893A1

公开(公告)日：2024-06-27

申请号：US18555783

申请日：2022-05-05

Applicant: Hilti Aktiengesellschaft

Inventor： Christian AUGUSTIN ,  Xiaodong ZHANG ,  Walter WISSMACH

IPC: H02P3/10 ,  H02P3/12 ,  H02P7/03 ,  B25F5/00

CPC classification number: H02P3/10 ,  H02P3/12 ,  H02P7/04 ,  B25F5/00

Abstract: An electric drive unit for an electric handheld power tool, having an electric motor with a stator winding and a rotor winding, an actuating circuit for actuating the electric motor and a connection unit for coupling an energy source for driving the electric motor, wherein the stator winding is connected via a first node to a stator-side first half-bridge including a first semiconductor component and a second semiconductor component and is connected via a second node to the rotor winding, wherein the rotor winding is connected to a third node which is connected via a conductive component to the connection unit, and wherein the actuating circuit includes a third semiconductor component which is connected via the second node to the rotor winding and the stator winding and which is connected via a fourth node directly to the connection unit.

公开(公告)号：US10998850B2

公开(公告)日：2021-05-04

申请号：US16328187

申请日：2017-08-11

Applicant: SUNGCHANG ENERGY LAB ,  SUNGCHANG TELECOM CO., LTD

Inventor： Jae Jin Lee

IPC: H02S20/32 ,  F16H25/20 ,  H02P3/08 ,  F24S50/20 ,  H02P7/03 ,  H02S40/22 ,  H02S30/00 ,  F24S30/45 ,  H02P3/10 ,  F24S30/00

Abstract: A solar tracker having a brake function is disclosed. The solar tracker according to an embodiment of the present invention relates to a technology having a dual position sensing device provided at a part at which altitude adjustment and horizontal rotation of a solar collector plate respectively end, such that a brake is accurately operated for a driving motor, which is respectively in charge of altitude adjustment and horizontal rotation.

公开(公告)号：US20160039529A1

公开(公告)日：2016-02-11

申请号：US14491215

申请日：2014-09-19

Applicant: Amazon Technologies, Inc.

Inventor： Daniel Buchmueller ,  Brian C. Beckman ,  Amir Navot ,  Brandon William Porter ,  Gur Kimchi ,  Jeffrey P. Bezos ,  Frederik Schaffalitzky

IPC: B64D31/06 ,  B64C39/02 ,  B64D27/24 ,  H02P3/04 ,  F16D43/00 ,  F16P3/00 ,  H02P3/10 ,  B64C11/00 ,  G08G5/04

Abstract: The disclosure describes an automated aerial vehicle (AAV) and system for automatically detecting a contact or an imminent contact between a propeller of the AAV and an object (e.g., human, pet, or other animal). When a contact or an imminent contact is detected, a safety profile may be executed to reduce or avoid any potential harm to the object and/or the AAV. For example, if a contact with a propeller of the AAV by an object is detected, the rotation of the propeller may be stopped to avoid harming the object. Likewise, an object detection component may be used to detect an object that is nearing a propeller, stop the rotation of the propeller, and/or navigate the AAV away from the detected object.

Abstract translation: 本公开描述了一种自动航空器（AAV）和系统，用于自动检测AAV的推进器与物体（例如人，宠物或其他动物）之间的接触或即将接触。 当检测到接触或即将发生的接触时，可以执行安全简档以减少或避免对物体和/或AAV的任何潜在危害。 例如，如果检测到与物体的AAV的螺旋桨的接触，则可以停止螺旋桨的旋转，以避免对物体造成伤害。 类似地，物体检测部件也可用于检测靠近螺旋桨的物体，停止螺旋桨的旋转和/或导航AAV远离检测到的物体。

公开(公告)号：US08461787B2

公开(公告)日：2013-06-11

申请号：US12620791

申请日：2009-11-18

Applicant: Roman Gronbach

Inventor： Roman Gronbach

IPC: H02H7/085 ,  H02P3/10

CPC classification number: H02H7/0838

Abstract: An electrical full bridge circuit configuration having a bridge circuit, in the bridge branches of which electrical switch elements are situated, and having at least one bridge cross branch for connecting an electric motor that is switchable in its direction of rotation, in particular in an electrical system of a motor vehicle, and having a protective switch element for protecting against inadmissibly high electrical currents, in particular short circuit currents. For this purpose, the switch elements are provided as formed from switch contact elements of at least one relay.

Abstract translation: 一种电气全桥电路结构，其电桥开关元件位于桥接电路中，并且具有至少一个桥交叉分支，用于连接可在其旋转方向上切换的电动机，特别是电气 并且具有保护开关元件，用于防止不允许的高电流，特别是短路电流。 为此，开关元件由至少一个继电器的开关接触元件形成。

公开(公告)号：US5619109A

公开(公告)日：1997-04-08

申请号：US477458

申请日：1995-06-07

Applicant: Scott W. Cameron ,  Karl M. Schlager

Inventor： Scott W. Cameron ,  Karl M. Schlager

IPC: H02P6/18 ,  H02P6/24 ,  H02P3/10

CPC classification number: H02P6/24

Abstract: A method and circuit for braking a forward rotation of a rotor of a polyphase DC motor. A commutation sequencer is incremented by several phases to produce an incremented commutation sequence to produce a magnetic flux vector that lags a magnetic pole of the motor. Driving currents are applied to coils of the motor in accordance with the incremented commutation sequence to brake the rotor. The method is implemented in a circuit that has a sequencer for incrementally generating sets of commutation signals to select stator coils for energization to rotate the rotor. A power stage to which the commutation signals are applied energizes the selected coils in accordance with the commutation signals. A circuit interrupts the energization of the selected coils and the commutation sequence is altered to produce a sequence that produces a negative torque on the rotor. Circuits are also provided to inhibit application of the altered commutation sequence until recirculation currents in the power stage caused by the coils in response to the reduction of the input voltage have fallen below a predetermined level, and to inhibit application of the altered commutation sequence until a voltage on a sense resistor between the power stage and a reference potential has fallen below a predetermined level after an operation of the circuit for interrupting the energization of the selected coils.

Abstract translation: 一种用于制动多相直流电动机的转子正转的方法和电路。 换向序列发生器增加多个相位以产生递增的换向序列，以产生滞后于电机的磁极的磁通矢量。 根据递增的换向顺序将驱动电流施加到电动机的线圈以制动转子。 该方法在具有用于增量地产生换向信号组的定序器的电路中实现，以选择用于激励转子的定子线圈。 施加换向信号的功率级根据换向信号激励所选择的线圈。 A电路中断所选择的线圈的通电，改变换向序列以产生在转子上产生负转矩的序列。 还提供电路以阻止改变的换向序列的应用，直到响应于输入电压的降低而由线圈引起的再循环电流已经降低到预定水平以下并且阻止改变的换向序列的应用直到 功率级与参考电位之间的检测电阻上的电压在用于中断所选择的线圈的通电的电路的操作之后已经下降到预定水平以下。

公开(公告)号：US5463293A

公开(公告)日：1995-10-31

申请号：US186422

申请日：1994-01-25

Applicant: Tomoji Matsui

Inventor： Tomoji Matsui

IPC: G11B19/22 ,  H02H7/093 ,  H02P3/06 ,  H02P3/10 ,  H02P3/20 ,  H02P6/24 ,  H02P29/00 ,  H02P6/02

CPC classification number: H02P3/06 ,  G11B19/22 ,  H02P3/10 ,  H02P3/20 ,  H02P6/24

Abstract: A motor control device which prevents runaway reverse rotation arising from failure of detection of a rotational speed drop of a motor to a preset value when reverse torque braking is applied. In the first invention, rotation drop detection section 5 detects, from rotational pulses P1 generated by rotational pulse generation section 4, a rotational speed drop to the preset value and outputs rotation drop detection pulse P2. Timer section 6 is activated by rotation stopping signal S1 and outputs pulse P3 upon lapse of the maximum rotation stopping required time of the motor. Control section 1 delivers, upon reception of rotation stopping signal S1 from the outside, a signal to apply reverse torque to motor drive section 2 and then delivers, upon reception of rotation drop detection pulse P2 or pulse P3, an instruction to stop reverse torque. In the second invention, timer section 7 is additionally provided. If the motor enters reverse rotation after a motor rotational speed drop is not detected, control section 1 delivers an instruction to apply forward torque by pulse P3 and timer section 7 is also activated by pulse P3. When a preset time elapses, timer section 7 outputs, to control section 1, pulse P4, in response to which control section 1 delivers an instruction to again apply reverse torque. Control section 1 delivers, when the motor rotational speed becomes lower than a preset value, another instruction to cancel torque application.

Abstract translation: 一种电动机控制装置，其防止当施加反向扭矩制动时由电动机的转速下降检测失败引起的失控反转。 在第一发明中，旋转下降检测部5从由旋转脉冲生成部4生成的旋转脉冲P1检测到转速下降到预设值，并输出旋转下降检测脉冲P2。 定时器部分6由旋转停止信号S1激活，并且经过马达的最大旋转停止所需时间后输出脉冲P3。 控制部1在从外部接收到旋转停止信号S1时，向马达驱动部2施加反向扭矩的信号，并且在接收到旋转下降检测脉冲P2或脉冲P3时传送停止反向转矩的指令。 在第二发明中，另外提供定时器部分7。 如果没有检测到电机转速下降后电机进入反转状态，则控制部分1通过脉冲P3发送施加转矩的指令，定时器部分7也由脉冲P3激活。 当预设时间过去时，定时器部分7向控制部分1输出脉冲P4，响应于哪个控制部分1递送指令以再次施加反向转矩。 当电机转速低于预设值时，控制部分1提供取消转矩施加的另一指令。

公开(公告)号：US5374881A

公开(公告)日：1994-12-20

申请号：US981164

申请日：1992-11-24

Applicant: Stephen F. Post ,  Warren J. Vinzant ,  Scott A. Bowman ,  George L. Ackerson

Inventor： Stephen F. Post ,  Warren J. Vinzant ,  Scott A. Bowman ,  George L. Ackerson

IPC: B60L11/18 ,  B60L15/20 ,  H02P3/10

CPC classification number: B60L15/20 ,  B60L11/1805 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7275

Abstract: A motor controller comprises a plug detect circuit which detects "continuous" plug diode conduction during plug braking. The plug detect circuit detects "continuous" plug braking by detecting when a plug diode is or is not conducting current throughout substantially the entire time that a power MOSFET controlling the plug braking is conductive in one pulse width modulated MOSFET switching cycle. Continuous plug detection facilitates the motor controller's controlling a vehicle so that the vehicle has a more constant and smooth plug braking deceleration and subsequent powered acceleration in the opposite direction. According to another aspect of the invention, a motor controller comprises a POT HI and a POT LO driver circuit. The POT HI and POT LO driver circuits allow the detection of faults in throttle devices and the connections of the throttle devices to the POT HI and POT LO driver circuits. One of the POT HI and POT LO driver circuits has a greater current limit than does the other driver circuit so that numerous faults including open circuit breaks in the connection of a throttle device as well as shorts across or through the throttle device are detectable by the motor controller.

Abstract translation: 电动机控制器包括一个插头检测电路，其检测插头制动期间的“连续”插头二极管导通。 插头检测电路通过在一个脉冲宽度调制的MOSFET切换周期中通过检测插头二极管何时或不导通电流来检测“连续”插头制动，整个时间内控制插头制动的功率MOSFET是导通的。 连续插头检测有助于电机控制器控制车辆，使得车辆在相反方向上具有更恒定和平稳的塞子制动减速度和随后的动力加速。 根据本发明的另一方面，电机控制器包括POT HI和POT LO驱动器电路。 POT HI和POT LO驱动电路允许检测节流装置中的故障以及节流装置与POT HI和POT LO驱动电路的连接。 POT HI和POT LO驱动电路中的一个具有比其他驱动电路更大的电流限制，使得包括节流装置的连接中的开路断路以及跨过或通过节流装置的短路的许多故障可被 电机控制器。

公开(公告)号：US5250883A

公开(公告)日：1993-10-05

申请号：US837329

申请日：1992-02-18

Applicant: Tadashi Okada

Inventor： Tadashi Okada

IPC: H02P6/06 ,  H02P23/00 ,  H02P3/10 ,  H02P7/285

CPC classification number: H02P6/06 ,  H02P23/186

Abstract: There is provided a drive control apparatus for a motor having a drive device for controlling current supplied to an armature coil, a control device for controlling the rotation speed of a rotor, and a mode switch device for comparing a rotation speed signal and a predetermined reference voltage and generating a normal rotation mode signal or a reverse rotation mode signal. Furthermore, the drive control device has the drive device, the control device and a signal delay device. The signal delay device delays the supply of a stop signal from the control device by a predetermined time, and a reverse current is supplied to the armature coil during the delay time.

Abstract translation: 提供一种用于电机的驱动控制装置，具有用于控制提供给电枢线圈的电流的驱动装置，用于控制转子的转速的控制装置，以及用于比较转速信号和预定参考值的模式开关装置 并产生正常旋转模式信号或反向旋转模式信号。 此外，驱动控制装置具有驱动装置，控制装置和信号延迟装置。 信号延迟装置延迟来自控制装置的停止信号的供给预定时间，并且在延迟时间期间向电枢线圈提供反向电流。

公开(公告)号：US4928044A

公开(公告)日：1990-05-22

申请号：US285973

申请日：1988-12-19

Applicant: Takahumi Shiba

Inventor： Takahumi Shiba

IPC: H02P3/10 ,  G11B19/06 ,  G11B19/20 ,  G11B19/22 ,  H02P3/06

CPC classification number: G11B19/06 ,  G11B19/20 ,  G11B19/22

Abstract: A spindle motor stop control device applies a reverse torque braking force to the spindle motor to effect stopping of the motor. A speed detector detects when the number of rotation of the motor has slowed to 1/n of a predetermined number of rotation and issues a detection signal. The time period beginning with the application of the reverse torque braking force until the issuance of the detection signal is measured. Then, a time period t=T/(n-1) is calculated and the reverse torque braking force is continued for the time, t, and then removed.

公开(公告)号：US4833378A

公开(公告)日：1989-05-23

申请号：US144584

申请日：1988-01-06

Applicant: Ryosuke Furue ,  Toshitaka Agano

Inventor： Ryosuke Furue ,  Toshitaka Agano

IPC: H02P3/20 ,  G02B26/12 ,  G03B42/02 ,  H02P3/10 ,  H04N1/04

CPC classification number: H02P3/10 ,  Y10S250/909

Abstract: A motor control method and apparatus in which when a motor rotating at prescribed RPM is to be stopped, a reverse maximum voltage is applied to the motor to rotate it in a reverse direction. Upon reversal of the direction of rotation of the motor, the reverse maximum voltage is cut off to stop the rotation of the motor in a shortest period of time.

Abstract translation: 一种马达控制方法和装置，其中当停止以规定RPM旋转的马达时，向马达施加反向最大电压以使其沿相反方向旋转。 在反转电动机的旋转方向时，反向最大电压被切断以在最短的时间内停止电动机的旋转。