公开(公告)号：US20140327385A1

公开(公告)日：2014-11-06

申请号：US14265125

申请日：2014-04-29

申请人： Canon Kabushiki Kaisha

发明人： Yoshihiro Mizuo

IPC分类号： H02P8/36

CPC分类号： H02P8/38 ,  H02P8/36

摘要： A CPU obtains a difference between a data number at timing when an ENC0 signal or an ENC1 signal changes in a case where there is no follow-up delay of a rotor relative to a voltage signal applied to an A-phase coil and a B-phase coil and a data number at timing when the ENC0 signal or the ENC1 signal changes in a case where there is a follow-up delay of the rotor relative to the voltage signal applied to the A-phase coil and the B-phase coil. Then, the CPU controls the voltage signal applied to the A-phase coil and the B-phase coil based on the obtained difference.

摘要翻译： 在不相对于施加到A相线圈的电压信号和转子A相的转子没有后续延迟的情况下，CPU获得在ENC0信号或ENC1信号变化的定时的数据号之间的差异， 在相对于施加到A相线圈和B相线圈的电压信号存在转子的跟随延迟的情况下，ENC0信号或ENC1信号变化的定时的数据编号。 然后，CPU基于得到的差值来控制施加到A相线圈和B相线圈的电压信号。

公开(公告)号：US08786244B2

公开(公告)日：2014-07-22

申请号：US13241103

申请日：2011-09-22

申请人： Jihoon Jang

发明人： Jihoon Jang

IPC分类号： H02P8/36

CPC分类号： H02P23/14 ,  H02P21/22 ,  Y02T10/7258

摘要： Methodologies and systems are provided for current estimation in electric motor. The system comprises an electric motor having sensors for sensing at least motor current, motor temperature and motor speed. A vehicle controller is coupled to the sensors and includes a closed-loop current control system for the electric motor having a current compensation circuit for providing a current compensation signal that is used to adjust a current command for the electric motor. The current compensation circuit includes a short-circuit current calculator for providing a short-circuit current value based upon the motor temperature and the motor speed, a compensation gain calculator for providing a gain compensation value based upon the motor speed, and circuitry for combining the motor current, the short-circuit current value and the gain compensation value to provide the current compensation signal. Methods for current estimation in electric motor are also provided.

摘要翻译： 提供了电动机当前估计的方法和系统。 该系统包括具有用于至少感测电动机电流，电动机温度和电动机速度的传感器的电动机。 车辆控制器耦合到传感器，并且包括用于电动机的闭环电流控制系统，其具有电流补偿电路，用于提供用于调整用于电动机的电流指令的电流补偿信号。 电流补偿电路包括：短路电流计算器，用于基于电机温度和电机速度提供短路电流值;补偿增益计算器，用于基于电机速度提供增益补偿值;以及电路，用于将 电机电流，短路电流值和增益补偿值，以提供电流补偿信号。 还提供了电动机电流估计方法。

公开(公告)号：US20050122080A1

公开(公告)日：2005-06-09

申请号：US10960544

申请日：2004-10-08

申请人： Si-hun Yoo

发明人： Si-hun Yoo

IPC分类号： H02P8/02 ,  B41J29/38 ,  H02P8/00 ,  H02P8/36

CPC分类号： B41J29/38 ,  H02P8/36

摘要： An apparatus to and method of controlling a step motor by checking driving pulses to control the operation of the step motor and resetting the apparatus controlling the step motor when signals indicating an abnormal operation, such as stepping out, of the step motor are detected, thereby preventing a fire or damage to parts caused by the abnormal operation of the step motor.

摘要翻译： 通过检测步进电机的控制方法来控制步进电动机的装置和方法，用于控制步进电动机的操作，并且当检测到指示步进电动机的步进的异常操作的信号被检测到时，控制步进电动机的装置复位，由此 防止由步进电机的异常操作引起的火灾或部件损坏。

公开(公告)号：US20050062494A1

公开(公告)日：2005-03-24

申请号：US10668213

申请日：2003-09-24

申请人： Tanh Bui ,  Dacon Chow

发明人： Tanh Bui ,  Dacon Chow

IPC分类号： G01R31/06 ,  G01R31/34 ,  H02P8/36

CPC分类号： H02P8/36

摘要： A stall detection circuit and method for a stepper motor. The circuit has an H-bridge configuration with an additional circuit pathway to ground being connected at a point between two center windings. During the transition between step sequences, the circuit employs a monitoring phase in which the previously active low side driver is turned off such that current passes through only the first winding and then is diverted to ground via the additional pathway. While the phase voltage is thus momentarily extinguished, the second coil is used to monitor the motor's back EMF, from which it can be determined whether the rotor is in a normal running mode, a stall, or a reverse condition.

公开(公告)号：US06150789A

公开(公告)日：2000-11-21

申请号：US323467

申请日：1999-06-01

申请人： Robert Pulford, Jr.

发明人： Robert Pulford, Jr.

IPC分类号： G05B19/40 ,  H02P8/14 ,  H02P8/32 ,  H02P8/36

CPC分类号： H02P8/36 ,  G05B19/40 ,  H02P8/14 ,  H02P8/32 ,  G05B2219/41326 ,  G05B2219/42198

摘要： In a preferred embodiment, a stepper motor control, including: a driver to drive the stepper rotor; a detector to detect a commanded step rate signal provided to the driver and to provide an output signal proportional thereto; a power control, responsive to the output signal, to provide driving power to the driver, and to increase voltage to the driver in proportion to an increase in magnitude of the output signal; and an over-current protection circuit that becomes active above a predetermined motor current level and above a predetermined commanded step rate. Voltage control can be effected either on the drive board or by controlling the power supply. An additional feature provides over-current protection for the stepper motor during a lock rotor (stall) condition. The stepper motor control produces very low levels of EMI/RFI as compared with PWM current control (chopper) drives.

摘要翻译： 在优选实施例中，步进马达控制包括：驱动步进转子的驱动器; 检测器，用于检测提供给驾驶员的指令步进速率信号并提供与其成比例的输出信号; 功率控制器，响应于输出信号，向驱动器提供驱动功率，并且与输出信号幅度的增加成比例地增加驱动器的电压; 以及过高保护电路，其在预定的电动机电流水平以上并且高于预定的指令步进速率时变得有效。 电压控制可以在驱动板上或通过控制电源来实现。 一个附加功能在锁定转子（失速）条件下为步进电机提供过电流保护。 与PWM电流控制（斩波器）驱动相比，步进电机控制产生的EMI / RFI电平非常低。

公开(公告)号：US5762384A

公开(公告)日：1998-06-09

申请号：US736923

申请日：1996-10-25

申请人： Peter Bartel

发明人： Peter Bartel

IPC分类号： E05B47/00 ,  B60J5/00 ,  B60R25/00 ,  E05B77/48 ,  E05B81/06 ,  E05B81/16 ,  E05B81/40 ,  E05B85/02 ,  H02H6/00 ,  H02H7/085 ,  H02P8/36 ,  E05C3/16

CPC分类号： E05B81/06 ,  E05B77/48 ,  E05B81/16 ,  E05B81/40 ,  H02P8/36 ,  E05B85/02 ,  H02H6/005 ,  H02H7/0851 ,  Y10S292/27 ,  Y10T292/1047 ,  Y10T292/1082

摘要： A vehicle door lock having a closing element component, a locking element component and an actuating element component, the latter having a component actuating element and a securing actuating element, is connected to a central locking unit for remote controlled actuation of the securing actuation element. The actuation is effected with an electric motor and, in addition, a position monitoring is provided. The electric motor, for drive by the central locking unit is a reversible polyphase stepping motor with a phase confirming stator winding and which acts via a transmission on the lock component. The locking component is designed for a drive power which is greater than the nominal power of the polyphase stepping motor when it is permanently energized. The stepping motor is driven with a working voltage which is greater than the design voltage corresponding to the drive power for the centrally operable unit. For the position monitoring, a step monitor system is used. The polyphase stepping motor is controlled with the aid of a computer.

摘要翻译： 具有闭合元件部件，锁定元件部件和致动元件部件的车门锁具，其具​​有部件致动元件和固定致动元件，连接到中央锁定单元，用于紧固致动元件的远程控制致动。 用电动机进行致动，另外还提供位置监控。 用于由中央锁定单元驱动的电动机是可逆的多相步进电动机，其具有相位确认定子绕组，并且通过锁定部件上的变速器起作用。 锁定部件设计用于在永久通电时大于多相步进电机的额定功率的驱动功率。 步进电机的工作电压大于对应于中央可操作单元的驱动功率的设计电压。 对于位置监控，使用步进监控系统。 借助于计算机控制多相步进电机。

公开(公告)号：US5520150A

公开(公告)日：1996-05-28

申请号：US271498

申请日：1994-07-07

申请人： Yasuhiro Kimoto

发明人： Yasuhiro Kimoto

IPC分类号： F02D21/08 ,  F02D11/10 ,  F02D41/04 ,  F02D41/20 ,  F02M25/07 ,  F02M69/32 ,  H02P8/08 ,  H02P8/28 ,  H02P8/36 ,  F02M3/00

CPC分类号： F02D11/10 ,  H02P8/36 ,  F02D2011/102

摘要： An improvement to a controller of a step motor for a by-pass valve of an internal combustion engine is disclosed. After the engine is shut off, the valve is initialized to obtain accurate correspondence between the controller, the step motor, and the valve's position. The valve is first driven to a maximum open position. Thereafter, the valve is driven to a target position. In addition, a motor excitation pattern which the controller generates upon resetting is stored in a memory. According to one embodiment, the amount of motor rotation for reaching the target position is so determined that the last excitation pattern delivered to the motor matches the excitation pattern stored in the memory. According to another embodiment, a stopper is provided on the valve at the fully open position. After the engine is turned off, the motor is first energized to bring the valve against the stopper. Thereafter the motor is energized in the direction surpassing the fully open position. The amount of rotation of the motor is calculated so that the last excitation pattern sent to the motor matches that which was sent to the motor in bringing the valve against the stopper. The motor position is then initialized as the reference fully open position. Finally, the motor is energized to bring the valve to the target position.

摘要翻译： 公开了一种用于内燃机的旁通阀的步进电动机的控制器的改进。 发动机关闭后，初始化阀门，以获得控制器，步进电机和阀门位置之间的准确对应关系。 阀首先被驱动到最大打开位置。 此后，阀被驱动到目标位置。 此外，控制器在复位时产生的电机激励模式被存储在存储器中。 根据一个实施例，用于到达目标位置的电动机旋转量被确定为传送到电动机的最后激励模式与存储在存储器中的激励模式相匹配。 根据另一个实施例，在完全打开位置的阀上设置止动件。 发动机关闭后，电机首先通电，使阀门抵靠止动器。 此后，电机在超过完全打开位置的方向通电。 计算马达的旋转量，使得发送到马达的最后一个激励模式与将阀关闭到止动器上的电机相匹配。 然后将电机位置初始化为参考完全打开位置。 最后，电机通电，使阀门到达目标位置。

公开(公告)号：US5432424A

公开(公告)日：1995-07-11

申请号：US149784

申请日：1993-11-10

申请人： Masayoshi Takahashi

发明人： Masayoshi Takahashi

IPC分类号： G03B27/50 ,  H02P8/12 ,  H02P8/36 ,  H02P8/00

CPC分类号： H02P8/36 ,  H02P8/12

摘要： A motor control device capable of obtaining necessary and sufficient torque produced by a motor irrespective of the rotation speed of the motor and capable of preventing overcurrent from being applied to the motor. Pulses having a predetermined pulse width are generated in the period inversely proportional to the number of revolutions of the motor. A current control signal is made effective in a time period during which the pulses are generated, while being made ineffective to use a predetermined reference signal instead in the remaining time period. The current control signal corresponds to current to be supplied to the motor so as to obtain the necessary torque. The predetermined reference signal corresponds to current less than the current corresponding to the current control signal. The ratio of a time period during which the current control signal is made effective is increased at the time of rotation at high speed, while the ratio of a time period during which the reference signal is used is increased at the time of rotation at low speed. Therefore, sufficient current to obtain the necessary torque is supplied to the motor at the time of rotation at high speed. On the other hand, the overcurrent can be prevented from being applied to the motor at the time of rotation at low speed.

摘要翻译： 一种电动机控制装置，其能够获得由电动机产生的必要且足够的扭矩，而与电动机的转速无关，并且能够防止过电流施加到电动机。 在与电动机的转数成反比的周期中产生具有预定脉冲宽度的脉冲。 电流控制信号在产生脉冲的时间周期内变为有效，而在剩余时间段内使得无效地使用预定的参考信号。 电流控制信号对应于要提供给电动机的电流，以获得必要的转矩。 预定参考信号对应于小于对应于当前控制信号的电流的电流。 使电流控制信号有效的时间段的比例在高速旋转时增加，而使用参考信号的时间段的比例在低速旋转时增加 。 因此，在高速旋转时向马达提供足够的电流以获得必要的转矩。 另一方面，可以防止在低速旋转时向马达施加过电流。

公开(公告)号：US5182507A

公开(公告)日：1993-01-26

申请号：US735436

申请日：1991-07-25

申请人： Yukihisa Ishii ,  Yetsuya Oono ,  Shinichi Inagawa

发明人： Yukihisa Ishii ,  Yetsuya Oono ,  Shinichi Inagawa

IPC分类号： H02P8/38 ,  H02H7/08 ,  H02P8/36

CPC分类号： H02P8/36 ,  H02H7/0844

摘要： A driving circuit for driving a stepping motor has a plurality of excitation coils, a plurality of excitation transistors for driving the excitation coils of the stepping motor, respectively, and at least one chopping transistor for effecting chopping control of current flowing to the excitation coils. A fault diagnosis transistor is connected in parallel with the chopping transistor. A current limiting resistance is serially connected to the fault diagnosis transistor. A CPU selectively turns on and off the fault diagnosis transistor. The CPU detects output states of the chopping transistor assumed respectively when the fault diagnosis transistor is turned on and turned off. The CPU compares the detected output levels of the chopping transistor with respective predetermined logic levels and detects faults in the driving circuit from results of the comparisons.

摘要翻译： 用于驱动步进电动机的驱动电路分别具有多个励磁线圈，分别驱动步进电动机的励磁线圈的多个激励晶体管和用于对流入励磁线圈的电流进行斩波控制的至少一个斩波晶体管。 故障诊断晶体管与斩波晶体管并联连接。 限流电阻串联连接到故障诊断晶体管。 CPU选择性地打开和关闭故障诊断晶体管。 当故障诊断晶体管导通和断开时，CPU分别检测斩波晶体管的输出状态。 CPU将检测到的斩波晶体管的输出电平与各自的预定逻辑电平进行比较，并从比较结果中检测驱动电路中的故障。

公开(公告)号：US5148092A

公开(公告)日：1992-09-15

申请号：US736032

申请日：1991-07-25

申请人： Yukihisa Ishii ,  Shinichi Inagawa

发明人： Yukihisa Ishii ,  Shinichi Inagawa

IPC分类号： H02H7/08 ,  H02P8/36 ,  H02P8/38

CPC分类号： H02H7/0844 ,  H02P8/36

摘要： A driving circuit for driving a stepping motor has a plurality of excitation coils, a plurality of excitation transistors for driving the excitation coils of the stepping motor, respectively, at least one chopping transistor for effecting chopping control of current flowing to the excitation coils, and a CPU for supplying at least one control signal to the at least one chopping transistor. High and low pulse duty factor detecting circuits detect whether the at least one control signal has a pulse duty factor thereof falling outside a predetermined range defined by predetermined upper and lower limit values. The CPU is responsive to outputs from the high and low pulse duty factor detecting circuits for interrupting the supply of current to the stepping motor when the latter detect that the pulse duty factor falls outside the predetermined range.

摘要翻译： 用于驱动步进电动机的驱动电路具有多个励磁线圈，分别用于驱动步进电动机的励磁线圈的多个激励晶体管，至少一个用于对流过励磁线圈的电流进行斩波控制的斩波晶体管，以及 用于向至少一个斩波晶体管提供至少一个控制信号的CPU。 高，低脉冲占空比检测电路检测至少一个控制信号的脉冲占空因数是否超出预定上限值和下限值所限定的预定范围。 CPU响应来自高和低脉冲占空因数检测电路的输出，用于当脉冲占空因数检测到脉冲占空比超出预定范围时中断向步进电机的电流供应。