公开(公告)号：US20190326837A1

公开(公告)日：2019-10-24

申请号：US16502524

申请日：2019-07-03

申请人： DENSO CORPORATION

发明人： Yuya FUJISHIMA

IPC分类号： H02P6/28 ,  H02P23/18 ,  G01R19/00 ,  G05B1/06 ,  G05B11/18 ,  G05B11/28

摘要： An inverter converts direct-current power to alternating-current power by operations of a plurality of switching elements under a PWM control, and supplies the alternating-current power to an alternating-current electric motor. A feedback control computation unit of an inverter control unit uses current values acquired from current sensors detecting a current flowing to the alternating-current electric motor and a rotation angle of the alternating-current electric motor to perform a control computation in a (N/2) cycle (N is a natural number) of a triangular wave carrier of the PWM control. At the acquisition of the current values detected by the current sensors, an average acquisition unit acquires an average of current values in a carrier half cycle as a period between a peak and a valley of the carrier, or acquires a current value regarded as an average of the current values at an acquirable timing.

公开(公告)号：US20180039221A1

公开(公告)日：2018-02-08

申请号：US15662538

申请日：2017-07-28

申请人： Shogo NAKAMOTO ,  Takeo SEKI ,  Takuya MURATA ,  Shogo SAKAMOTO

发明人： Shogo NAKAMOTO ,  Takeo SEKI ,  Takuya MURATA ,  Shogo SAKAMOTO

IPC分类号： G03G15/00 ,  H02K7/116 ,  H02P6/16 ,  G05B11/18 ,  G05B11/42

CPC分类号： B65H5/025 ,  B65H2403/25 ,  B65H2403/512 ,  B65H2403/514 ,  B65H2404/1452 ,  B65H2404/255 ,  B65H2404/262 ,  B65H2513/222 ,  G03G15/1615 ,  G03G15/754 ,  G03G15/757 ,  G05B11/18 ,  G05B11/42 ,  G05B2219/41021 ,  G05B2219/41321 ,  H02K7/116 ,  H02K7/14 ,  H02K11/22 ,  H02P3/025 ,  H02P6/16 ,  H02P6/17 ,  H02P8/30

摘要： A contact-and-separation system includes a first roller, a second roller, and a contact-and-separation device. The first roller contacts a belt. The second roller is opposed to the first roller. The contact-and-separation device contacts or separates the belt to or from the second roller via a sheet conveyed. The contact-and-separation device includes an eccentric cam, a motor, and a circuitry. The eccentric cam is mounted on an end of a rotation shaft of the first roller. The motor rotates the eccentric cam. The circuitry controls the motor to rotate the eccentric cam to contact or separate the belt to or from the second roller via the sheet conveyed. The circuitry controls the motor to decelerate a rotation speed of the motor on contact or separation of the belt to or from the second roller between the first roller and the second roller.

公开(公告)号：US20090039820A1

公开(公告)日：2009-02-12

申请号：US11835822

申请日：2007-08-08

申请人： Shaun D. Milano ,  Alejandro G. Milesi ,  Nevenka Kozomora

发明人： Shaun D. Milano ,  Alejandro G. Milesi ,  Nevenka Kozomora

IPC分类号： G05B11/18

CPC分类号： H02P6/16 ,  H02P23/20 ,  H02P29/0241 ,  H02P29/60

摘要： In one aspect, a control circuit to control a speed of a motor includes a control logic circuit connected to a multifunction port. The control logic circuit is configured to receive a control signal provided at the multifunction port and to provide response signals based on the control signal to place the motor in at least two of a sleep mode, a brake mode and a pulse-width modulation (PWM) mode. The motor control circuit also includes an H-bridge circuit configured to control the motor based on the response signals.

摘要翻译： 一方面，用于控制电动机速度的控制电路包括连接到多功能端口的控制逻辑电路。 控制逻辑电路被配置为接收在多功能端口处提供的控制信号，并且基于控制信号提供响应信号，以将电动机置于睡眠模式，制动模式和脉冲宽度调制（PWM）中的至少两个 ）模式。 电动机控制电路还包括被配置为基于响应信号来控制电动机的H桥电路。

公开(公告)号：US07446497B2

公开(公告)日：2008-11-04

申请号：US11609880

申请日：2006-12-12

申请人： Yasusuke Iwashita ,  Takahiro Akiyama ,  Masakazu Niwa

发明人： Yasusuke Iwashita ,  Takahiro Akiyama ,  Masakazu Niwa

IPC分类号： G05B11/18

CPC分类号： G05B19/19 ,  G05B2219/42104

摘要： A fixed-position stop control apparatus (10) includes: a move-instruction generating means (22) for generating a move instruction for each control cycle; a position loop control means (25) for position controlling a rotation shaft (61) for each control cycle according to the move instruction generated by the move-instruction generating means; and a speed loop control means (35) for speed controlling the rotation shaft according to one of a speed instruction generated by a higher level control apparatus (45) and a predetermined speed instruction, thereby switching the speed control of the rotation shaft by the speed loop control means to the position control of the rotation shaft by the position loop control means. In this fixed-position stop control apparatus, the move instruction generated by the move-instruction generating means has acceleration smaller than the acceleration corresponding to the acceleration and deceleration ability of the rotation shaft. With this arrangement, time required for the rotation shaft to stop at a fixed position can be decreased.

摘要翻译： 固定位置停止控制装置（10）包括：移动指令生成装置（22），用于生成每个控制周期的移动指令; 位置循环控制装置，用于根据由所述移动指令产生装置产生的移动指令对每个控制循环进行位置控制旋转轴; 以及用于根据由上位控制装置（45）产生的速度指令和预定速度指令之一速度控制旋转轴的速度环控制装置（35），从而将旋转轴的速度控制切换到速度 循环控制装置通过位置环控制装置转动到旋转轴的位置控制。 在该固定位置停止控制装置中，由移动指令发生装置产生的移动指令的加速度小于与旋转轴的加速和减速能力对应的加速度。 通过这种布置，可以减少旋转轴在固定位置停止所需的时间。

公开(公告)号：US07183737B2

公开(公告)日：2007-02-27

申请号：US10892723

申请日：2004-07-16

申请人： Takayuki Kitagawa

发明人： Takayuki Kitagawa

IPC分类号： G05B11/18

CPC分类号： H02P7/28 ,  H02P29/032 ,  H02P29/68

摘要： A motor control device selectively turns on or off a drive transistor in-accordance with a PWM control signal Sp, such that a drive current Im supplied to a motor is adjusted. The device also samples and holds a motor current Sm for obtaining a motor current value Ih. With reference to the motor current value Ih, the device protects the motor from an overcurrent. Sampling and holding of the motor current Sm is performed for a sampling and holding time Ts. The sampling and holding time Ts corresponds to a time period between a first point in time when the level of the PWM control signal Sp is switched for turning off the drive transistor and a second point in time that precedes the first point in time by a predetermined period. As a result, the motor current value Ih is detected with high accuracy.

摘要翻译： 电动机控制装置根据PWM控制信号Sp选择性地导通或关闭驱动晶体管，从而调节提供给电动机的驱动电流Im。 该装置还采样并保持电动机电流Sm以获得电动机电流值Ih。 参考电机电流值Ih，器件保护电机免受过电流的影响。 对采样保持时间Ts进行电动机电流Sm的取样保持。 采样保持时间Ts对应于当PWM控制信号Sp的电平被切换以关闭驱动晶体管的第一时间点与在第一时间点之前的第二时间点之间的预定时间 期。 结果，高精度地检测电机电流值Ih。

公开(公告)号：US20050110449A1

公开(公告)日：2005-05-26

申请号：US10992831

申请日：2004-11-22

申请人： Yuji Yasui ,  Kanako Shimojo

发明人： Yuji Yasui ,  Kanako Shimojo

IPC分类号： F16H61/34 ,  F16H59/68 ,  F16H61/02 ,  F16H61/28 ,  F16H61/682 ,  F16H63/30 ,  G05B19/33 ,  G05B11/18

CPC分类号： F16H61/28 ,  F16H2059/6807 ,  F16H2063/3086

摘要： An actuator control system restrains hindrance to an object under control by an interfering substance that exists on its traveling path when the object is moved toward a target position on one axis while the object has been positioned at a target position on the other axis. A selection controller sets a switching function setting parameter (VPOLE_sl) so that a disturbance suppressing capability level is lower at a set value (VPOLE_sl_l) at time (t31˜) when a shift arm is moved in a shifting direction by a shift controller than at a set value (VPOLE_sl_h) at time (˜t31) when the shift arm is moved in a selecting direction to be set at a certain gearshift position (|VPOLE_sl_h|

摘要翻译： 当物体已经位于另一个轴上的目标位置上时，当物体朝向一个轴上的目标位置移动时，致动器控制系统阻止受到其行进路径上存在的干扰物质的控制的物体的阻碍。 选择控制器设置切换功能设定参数（VPOLE_s1），使得当移位臂在一个移动臂中移动时，在时间（t> 31〜）时的设定值（VPOLE_s1_1）的干扰抑制能力水平较低 当变速臂在选择方向上移动以设定在某个换档位置（| VPOLE_s1_h |）时，通过换档控制器而不是在时间（〜t 31）处的设定值（VPOLE_s1_h） <| VPOLE_sl_ |）。

公开(公告)号：US20050093502A1

公开(公告)日：2005-05-05

申请号：US10698198

申请日：2003-10-31

申请人： Alex Poon ,  Leonard Kho

发明人： Alex Poon ,  Leonard Kho

IPC分类号： G03F7/20 ,  G05B11/18 ,  B64C17/06

CPC分类号： G03F7/70766 ,  G03F7/70716 ,  G03F7/70758 ,  G03F7/70808 ,  G03F7/70816 ,  G03F7/70841

摘要： Methods and apparatus for enabling a stage apparatus to scan an object within a vacuum environment while isolating actuators, cables, and hoses from the vacuum environment are disclosed. According to one aspect of the present invention, a stage apparatus includes a first stage and a first actuator. The first stage is effectively configured such that an interior space is defined substantially within the first stage. The first actuator is positioned within the interior space, and drives the first stage in a first direction.

摘要翻译： 公开了一种用于使舞台装置在真空环境内扫描物体同时将致动器，电缆和软管与真空环境隔离的方法和装置。 根据本发明的一个方面，一种舞台装置包括第一舞台和第一致动器。 第一阶段被有效地构造成使得内部空间基本上被限定在第一阶段内。 第一致动器位于内部空间内，并且沿第一方向驱动第一级。

公开(公告)号：US5994856A

公开(公告)日：1999-11-30

申请号：US956837

申请日：1997-10-23

申请人： Paolo Menegoli

发明人： Paolo Menegoli

IPC分类号： G05B11/18 ,  H02P6/00 ,  H02P6/08 ,  H02P6/18 ,  H03F3/30 ,  H03F3/45 ,  H03F3/72

CPC分类号： H03F3/72 ,  H02P6/08 ,  H03F3/3076 ,  H03F2200/351

摘要： A method and a circuit for switching a motor controller from pulse width modulation to linear control for a brush-less, sensor-less, poly-phase DC motor. The method includes steps of operating a drive circuit for a poly-phase direct current motor in a pulse width modulation mode and determining that a zero crossing will occur within a predetermined interval. The method also includes steps of enabling a bias current to a transconductance operational amplifier and changing an operating state of the drive circuit from the pulse width modulation mode to a linear mode. The method further includes steps of determining that the zero crossing has occurred, disabling the bias current to the transconductance operational amplifier and changing the operating state of the drive circuit from the linear mode to the pulse width modulation mode.

公开(公告)号：US5392217A

公开(公告)日：1995-02-21

申请号：US240183

申请日：1994-05-09

申请人： Masayuki Nashiki ,  Hisashi Kondo

发明人： Masayuki Nashiki ,  Hisashi Kondo

IPC分类号： G05B21/02 ,  G05B19/4103 ,  G05B19/416 ,  G05B11/18

CPC分类号： G05B19/416 ,  G05B2219/34167 ,  G05B2219/43009 ,  G05B2219/43101

摘要： An acceleration and deceleration controlling apparatus in which a positional moving amount supplied from a host is converted into an accumulated value of absolute positions by two serially connected accumulators to be output to a first stage of a buffer registers 4. A switch 5 is provided to read out a value from a desired register among the buffer registers 4. The switch 5 changes the substantial number of stages of the buffer registers 4. At the same time, by correspondingly switching the divisor of the divider 7, the time constant for the acceleration and deceleration are desirably changed, which contributes to optimize the acceleration and deceleration time and to reduce the processing time.

摘要翻译： 一种加速和减速控制装置，其中从主机提供的位置移动量通过两个串联的累加器转换成绝对位置的累积值，以输出到缓冲寄存器4的第一级。提供开关5以读取 从缓冲寄存器4中的期望寄存器中输出一个值。开关5改变缓冲寄存器4的相当数量级。同时，通过相应地切换除法器7的除数，加速度的时间常数和 希望改变减速度，这有助于优化加速和减速时间并减少处理时间。

公开(公告)号：US5287875A

公开(公告)日：1994-02-22

申请号：US796682

申请日：1991-11-25

申请人： Kenji Otani

发明人： Kenji Otani

IPC分类号： F04D15/00 ,  F04B49/06 ,  F04B49/10 ,  F04D15/02 ,  G05B11/18

CPC分类号： F04D15/02 ,  F04B49/10 ,  F04B2207/703 ,  Y10T137/0402 ,  Y10T137/86163

摘要： When any component equipment of a draining pump plant is failed, the present necessity of drainage and a failure level of a drain pump involved with the failure are evaluated to determine conditions of continuing or stopping operation of the drain pump involved with the failure on the basis of the evaluated values. When the necessity of continuing the drainage operation is high, the operation is continued as far as possible, taking into account the pump failure level. The possibility of the drainage preference operation is thus maximized in the case of not only a minor failure but also a major failure of the pump, for preventing damage from a flood.

摘要翻译： 当排水泵厂的任何组件设备故障时，评估与故障相关的排水泵的当前需要和排水泵的故障等级，以确定与故障相关的排水泵的连续或停止运行的条件 的评估值。 在继续排水操作的必要性较高的情况下，考虑到泵的故障等级，尽可能地继续运行。 因此，在不仅轻微故障的情况下，排水优选操作的可能性最大化，而且也是泵的主要故障，以防止洪水造成的损坏。