Displacement machine with electronic motor synchronization
    63.
    发明授权
    Displacement machine with electronic motor synchronization 失效
    位移机与电子电机同步

    公开(公告)号:US5767635A

    公开(公告)日:1998-06-16

    申请号:US553318

    申请日:1995-11-21

    摘要: In a displacement machine for compressible media having at least two rotors (14a-c) which are configured as profiled bodies and whose profiles engage with one another in the manner of gearwheels during rotation, the individual rotors are respectively driven by their own electric motors (9a-c) and are kept synchronous in rotational speed and angular position by electronic closed-loop and/or open-loop control units (1; 25a-c) in accordance with the transmission ratio of the displacer unit stage. The electronics can be employed for monitoring further operating data of the pump and also for matching the pump output by changing rotational speed. It can also be used as an overload protection. The rotational speeds and rotational attitudes of the rotors are controlled individually and independently of one another, the required attitude values being specified to the individual control units (25a-c) by means of a main control unit (1).

    摘要翻译: PCT No.PCT / EP94 / 01818 Sec。 371日期:1995年11月21日 102(e)1995年11月21日日期PCT PCT 1994年6月3日PCT公布。 公开号WO94 / 29596 日期1994年12月22日在具有至少两个转子(14a-c)的可压缩介质的移动机器中,其构造为成型体并且其轮廓在旋转期间以齿轮的方式彼此接合,各个转子分别由 它们自己的电动机(9a-c),并且根据排量器单元级的传动比,通过电子闭环和/或开环控制单元(1; 25a-c)在转速和角位置保持同步 。 该电子部件可用于监测泵的进一步操作数据,并且还用于通过改变转速匹配泵输出。 它也可以用作过载保护。 转子的旋转速度和旋转姿态被独立地彼此独立地控制,所需的姿态值通过主控制单元(1)被指定给各个控制单元(25a-c)。

    Drive unit and a motor drive control method
    64.
    发明授权
    Drive unit and a motor drive control method 失效
    驱动单元和电机驱动控制方式

    公开(公告)号:US5705908A

    公开(公告)日:1998-01-06

    申请号:US670822

    申请日:1996-06-25

    申请人: Hideo Kashimura

    发明人: Hideo Kashimura

    IPC分类号: H02P8/40 H02P5/46 B41J1/00

    CPC分类号: H02P8/40

    摘要: A drive unit capable of maintaining the stability of driving speed with respect to the driven part in which the motor is not used at a low drive efficiency. Said drive unit comprises the first and second stepping motors 12 and 14 transmitting power to the driven part at a rated driving output corresponding to the load torque of said driven part, the first and second motor drive control units 15 and 16 supplying electric power to these first and second stepping motors 12 and 14 and controlling their drive, a temperature detection circuit 7 detecting the temperature of the heat generated by these first and second motor drive control units 15 and 16 and outputting temperature detection signals, and a system control circuit 3 switching the allocation of the main drive unit or the auxiliary drive unit based on the temperature detection signals outputted from the allocation and temperature detection circuit 7 allocating one of the first or second stepping motors 12 or 14 to serve as the main drive unit or the auxiliary drive unit when the detected temperature has exceeded the previously set reference temperature.

    摘要翻译: 一种驱动单元,其能够以低驱动效率保持相对于不使用电动机的从动部的驱动速度的稳定性。 所述驱动单元包括第一和第二步进电动机12和14,其以对应于所述从动部分的负载转矩的额定驱动输出向被驱动部分发送动力,第一和第二电动机驱动控制单元15和16向它们提供电力 第一和第二步进电动机12和14并控制其驱动;温度检测电路7,检测由第一和第二电动机驱动控制单元15和16产生的热量的温度并输出温度检测信号;以及系统控制电路3切换 基于从分配和温度检测电路7输出的温度检测信号分配主驱动单元或辅助驱动单元,分配和分配第一或第二步进电机12或14中的一个作为主驱动单元或辅助驱动器 当检测到的温度超过先前设定的参考温度时,单位。

    Color misregistration-free color image forming apparatus
    65.
    发明授权
    Color misregistration-free color image forming apparatus 失效
    彩色无对准彩色图像形成装置

    公开(公告)号:US5424763A

    公开(公告)日:1995-06-13

    申请号:US903606

    申请日:1992-06-24

    摘要: In a color image forming apparatus such as a color laser printer, misregistration of colors of an output image along a subscanning direction is minimized so as to prevent accumulation of color misregistrations in the output image. In the apparatus, a photosensitive drum motor and a transfer drum motor are driven by motors exclusively provided thereto. The apparatus includes a photosensitive drum motor controller and a transfer drum motor controller respectively provided for speed-controlling the photosensitive drum motor and the transfer drum motor. By these motor controllers, a phase difference between a frequency generator signal from the motor and a phase reference signal is checked. Even if the phase difference exceeds a predetermined range of phase, the motor controller controls the motor so that the phase difference quickly falls within the predetermined range of phase.

    摘要翻译: 在诸如彩色激光打印机的彩色图像形成装置中,沿着副扫描方向的输出图像的颜色的对准被最小化,以防止输出图像中的颜色不对齐的累积。 在该装置中,感光鼓电动机和转印鼓电动机由专门提供于其上的电动机驱动。 该装置包括分别设置用于速度控制感光鼓电动机和转印鼓电动机的感光鼓电动机控制器和转印鼓电动机控制器。 通过这些电动机控制器,检查来自电动机的频率发生器信号与相位参考信号之间的相位差。 即使相位差超过预定的相位范围,电动机控制器控制电动机,使得相位差快速落在相位的预定范围内。

    System for and method of driving electric automotive vehicle
    66.
    发明授权
    System for and method of driving electric automotive vehicle 失效
    电动汽车驾驶系统及方法

    公开(公告)号:US5371446A

    公开(公告)日:1994-12-06

    申请号:US015010

    申请日:1993-02-09

    申请人: Takashi Imaseki

    发明人: Takashi Imaseki

    摘要: A system for driving an electric automotive vehicle controls a slip frequency of a motor by feeding back to a signal control part a rotational speed detected by a motor speed sensor when the motor speed is normal. When the motor speed sensor is abnormal the system controls the slip frequency by feeding back to the signal control part the rotational speed estimated in accordance with an operating condition of the vehicle.

    摘要翻译: 用于驱动电动汽车的系统通过在电动机速度正常时将由电动机速度传感器检测到的转速反馈给信号控制部分来控制电动机的转差频率。 当电机速度传感器异常时,系统通过向信号控制部分反馈根据车辆的运行状况估计的转速来控制滑差频率。

    Reconfigurable master-slave control
    67.
    发明授权
    Reconfigurable master-slave control 失效
    可重构主从控制

    公开(公告)号:US5239247A

    公开(公告)日:1993-08-24

    申请号:US900811

    申请日:1992-06-17

    IPC分类号: B29C47/92 H02P5/46 H02P5/50

    摘要: A machine control permits the selection of input values defining configurations of motors on the machine in desired master-slave relationships. Individual master-slave dependencies may be selectively activated and deactivated. In response to a new commanded velocity for a master motor the control is effective to alter the velocities of all motors dependent therefrom as a function of change of velocity of the master motor and selectable slave ratios.

    摘要翻译: 机器控制允许选择在所需主从关系中定义机器上电机配置的输入值。 可以选择性地激活和停用单独的主从依赖关系。 响应于主电动机的新的指令速度,该控制有效地改变所有依赖于其的电动机的速度,作为主电动机的速度变化和可选择的从动比率的函数。

    Motor driving device
    69.
    发明授权
    Motor driving device 失效
    电机驱动装置

    公开(公告)号:US5047703A

    公开(公告)日:1991-09-10

    申请号:US426560

    申请日:1989-10-25

    申请人: Koji Akamatsu

    发明人: Koji Akamatsu

    IPC分类号: H02P5/46 G05B19/23

    CPC分类号: G05B19/237 G05B2219/41034

    摘要: The present invention relates to a motor driving device wherein two motors are held in engagement with an identical spindle through respective torque transmission mechanisms, and wherein each of the motors has a driving amplifier for generating a torque in a direction reverse to that of a torque of the other motor; comprising an integration circuit which integrates with respect to time a difference signal between an angle command value of the spindle and a rotational angle feedback value thereof, and which applies its integral output to the driving amplifiers in common.

    摘要翻译: 电动机驱动装置技术领域本发明涉及一种电动机驱动装置,其中两个电动机通过相应的转矩传递机构与相同的主轴保持接合,并且其中每个电动机具有驱动放大器,用于产生与扭矩相反的方向的扭矩 另一台电机; 包括积分电路,其相对于时间积分主轴的角度指令值与其旋转角度反馈值之间的差分信号,并将其积分输出共同地施加到驱动放大器。

    Load-based control of an AC motor
    70.
    发明授权
    Load-based control of an AC motor 失效
    交流电机的基于负载的控制

    公开(公告)号:US4987351A

    公开(公告)日:1991-01-22

    申请号:US464056

    申请日:1990-01-11

    CPC分类号: H02P27/08 H02P23/0077

    摘要: An AC motor control based on an iterative computation of the motor load and method of accurately determining motor load. At the initiation of motor operation, the load term (%LOAD) is initialized to zero, and the motor is energized in accordance with a predetermined voltage and frequency schedule for producing motor rotation. During the starting interval the power loss term LOSSES and the load term (%LOAD) are iteratively computed as a function of the input voltage and current (V.sub.bus, I.sub.bus) and the motor inverter frequency (IF). When a predetermined motor speed has been achieved, the run mode is initiated. At this point, the load is known based on the iterative load calculations performed during starting, and the motor voltage and inverter frequency are scheduled as a function of motor speed and load. The iterative computation of losses and load continue during the run mode so that changes in the motor load are taken into account.

    摘要翻译: 基于电机负载的迭代计算的交流电动机控制和精确确定电动机负载的方法。 在电机运行开始时,负载项(%LOAD)被初始化为零,并且电动机根据用于产生电动机旋转的预定电压和频率调度被激励。 在起动间隔期间,功率损耗项LOSSES和负载项(%LOAD)根据输入电压和电流(Vbus,Ibus)和电机逆变器频率(IF)的函数进行迭代计算。 当达到预定的电动机速度时,启动运行模式。 此时,负载根据启动期间的迭代负载计算而得知,电动机电压和逆变器频率作为电机转速和负载的函数进行调度。 损耗和负载的迭代计算在运行模式下继续运行,从而考虑到电机负载的变化。