-
公开(公告)号：EP0429867A3
公开(公告)日：1992-12-30
申请号：EP90120728.2
申请日：1990-10-29
CPC分类号： G01P13/04
摘要： The invention relates to an error detecting unit (8) of a motor rotation control device (1) furnished with a rotational detector (3) for detecting the rotation of the motor (2) and actual rotation direction detecting means for obtaining the actual direction of rotation of the corresponding motor (2) on the basis of the rotation detection signals of the corresponding rotational detector (3) and so composed that reverse drive force can be given to the corresponding motor (2) by changing a commanding signal for appointing the direction of rotation of the corresponding motor (2) when changing the direction of rotation of the corresponding motor (2) or braking the motor (2), wherein any error of the motor rotation control device (1) can be instantaneously detected, without waiting until the above actual direction of rotation of the motor (2) becomes coincident with the rotation commanded direction after changeover, even right after the rotation commanded direction of motor (2) by a commanding signal has been changed. For this reason, the error detecting unit (8) of the invention is so composed that the corresponding motor rotation control device (1) can be judged to be out of order in the case that the actual direction of rotation of the motor (2) does not coincide with the rotation commanded direction of the commanding signal and the rotation speed of the corresponding motor (2) obtained on the basis of the rotation detection signal of the rotational detector (3) is not decelerated.
-
2.发明公开
公开(公告)号：EP0168148A1
公开(公告)日：1986-01-15
申请号：EP85303708.3
申请日：1985-05-28
IPC分类号： G03G15/00
CPC分类号： G03G15/751
摘要： A photoconductive drum device for electrostatic copying machines or the like which comprises a temperature maintaining heater (1) bent to a cylindrical form and accommodated in the main body of a photoconductive drum. The heater comprises a base plate (5) and a heat generator (6) attached to the base plate (5). The base plate (5) has a parallelogrammatic form substantially corresponding to a shape which is obtained by cutting a hollow cylinder. having a diameter approximate to the inside diameter of the drum main body, along a helical cut line and unbending the cylinder. A temperature censor (21) is disposed in the interior of the drum, his position with respect to the longitudinal direction of the drum is approximately in the middle between a highest temperature portion of the drum and a portion thereof having a low temperature due to the removal of heat by copy paper during the operation of the drum.
-
3.发明授权Method of calculating motor control voltage and motor control device using the method 失效一种用于计算控制电压和使用该方法的电动机控制装置的方法。
公开(公告)号：EP0409185B1
公开(公告)日：1995-11-08
申请号：EP90113706.7
申请日：1990-07-17
CPC分类号： H02P7/2855 , H02P23/16
-
-
5.发明公开Error detecting unit of motor rotation control device 失效Fehlererkennungseinrichtungfüreine Motordrehrichtungssteuerungseinrichtung。
公开(公告)号：EP0429867A2
公开(公告)日：1991-06-05
申请号：EP90120728.2
申请日：1990-10-29
CPC分类号： G01P13/04
摘要： The invention relates to an error detecting unit (8) of a motor rotation control device (1) furnished with a rotational detector (3) for detecting the rotation of the motor (2) and actual rotation direction detecting means for obtaining the actual direction of rotation of the corresponding motor (2) on the basis of the rotation detection signals of the corresponding rotational detector (3) and so composed that reverse drive force can be given to the corresponding motor (2) by changing a commanding signal for appointing the direction of rotation of the corresponding motor (2) when changing the direction of rotation of the corresponding motor (2) or braking the motor (2), wherein any error of the motor rotation control device (1) can be instantaneously detected, without waiting until the above actual direction of rotation of the motor (2) becomes coincident with the rotation commanded direction after changeover, even right after the rotation commanded direction of motor (2) by a commanding signal has been changed. For this reason, the error detecting unit (8) of the invention is so composed that the corresponding motor rotation control device (1) can be judged to be out of order in the case that the actual direction of rotation of the motor (2) does not coincide with the rotation commanded direction of the commanding signal and the rotation speed of the corresponding motor (2) obtained on the basis of the rotation detection signal of the rotational detector (3) is not decelerated.
摘要翻译： 本发明涉及一种电动机旋转控制装置的误差检测装置，该装置具有用于检测电动机的旋转的旋转检测器和实际的旋转方向检测装置，用于基于旋转检测获得相应电动机的实际转动方向 相应的旋转检测器的信号，并且使得可以通过在改变对应的电动机的旋转方向或制动电动机时改变用于指定相应电动机的旋转方向的指令信号来向相应的电动机提供反向驱动力， 其中，马达旋转控制装置的任何误差都可以被瞬时检测，而不等到直到电动机的上述实际转动方向与切换之后的转动指令方向一致时，即使在通过指令信号的马达的旋转指令方向之后 被改变了 因此，本发明的误差检测单元的结构是，在电动机的实际旋转方向与旋转指令方向不一致的情况下，能够判断为相应的电动机旋转控制装置不正常 基于旋转检测器的旋转检测信号获得的相应电动机的指令信号和转速不被减速。
-
6.发明公开Method of calculating motor control voltage and motor control device using the method 失效使用该方法计算电动机控制电压和电动机控制装置的方法
公开(公告)号：EP0409185A3
公开(公告)日：1992-06-10
申请号：EP90113706.7
申请日：1990-07-17
CPC分类号： H02P7/2855 , H02P23/16
摘要： A motor control device carries out feedback control of a motor such that the rotational speed of the motor is equal to the command speed. A control voltage is first calculated as the sum of a first constant times the difference between the command speed and the actual rotational speed, a second constant times the actual rotational speed and a predetermined offset value. The calculated control voltage is corrected on the basis of the phase difference between the command speed and the actual rotational speed and a voltage after the correction is outputted as a motor control voltage. The rotational speed of the motor can be caused to rapidly follow the target speed by adjusting the first and second constants and the offset value whether the command speed is relatively low or high, thereby to make it possible to control the motor at a constant speed.
-
公开(公告)号：EP0369866A1
公开(公告)日：1990-05-23
申请号：EP89403108.7
申请日：1989-11-10
IPC分类号： G05B19/407
CPC分类号： G05B19/416
摘要： A mobile member control apparatus having a motor for moving a mobile member from a first position to a third position through a second position, includes a sensing device for sensing a travel speed and a position of the mobile member, a speed presetting device (103) for presetting upper and lower limit values in speed which become smaller as the mobile member travels closer to the third position, a deceleration rate presetting device for presetting at least two deceleration rates (104), large and small, a comparing device (105) for comparing a travel speed with the upper and lower limit values, and a motor control device (106) for decelerating the motor according to either of the large or small deceleration rate when the mobile member reaches the second position, decelerating the motor according to the large deceleration rate when a travel speed of the mobile member comes to be the upper limit value or over and decelerating the motor according to the small deceleration rate when the travel speed of the mobile member comes to be the lower limit value or under.
摘要翻译： 一种移动构件控制装置，其具有用于将移动构件从第一位置移动到第三位置的电动机通过第二位置，包括用于感测移动构件的行进速度和位置的感测装置，速度预设装置（103） 用于预先设定随着移动体越靠近第三位置越来越小的速度上下限值;减速度预设装置，用于预先设定大小的至少两个减速率（104），比较装置（105），用于 将行驶速度与上限值和下限值进行比较;以及电动机控制装置（106），用于根据移动部件到达第二位置时的大的或小的减速度中的任一个来减速电动机，根据大的减速度 当移动构件的行进速度成为上限值时，减速度减速度越过，并且当tr 移动会员的新速度成为下限或下限。
-
公开(公告)号：EP0316935A2
公开(公告)日：1989-05-24
申请号：EP88119215.7
申请日：1988-11-18
CPC分类号： G03G15/04 , G03B27/526 , G03G15/0435
摘要： An image forming apparatus comprises a movable optical system (28) for reading an original image, a motor (61) for driving the optical system, a motor driving circuit (70), an encoder (62) which outputs signals responsive to velocities of the motor (61), a control circuit (69) which controls the motor driving circuit (70) such that the optical system (28) starts from a home position and turns at a predetermined point to return again to the home position, and applies braking to the motor (61) when the optical system (28) is stopped at the home position, and a microcomputer for deciding timing to apply braking in response to an output of the encoder. By deciding brake timing in response to the output of the encoder, the optical system can be stopped accurately at the home position even when a moving load is increased abnormally due to stains on component members of a running path (45, 59) for the optical system, or replacement of the optical system (28).
摘要翻译： 图像形成装置包括用于读取原始图像的可移动光学系统（28），用于驱动光学系统的马达（61），马达驱动电路（70），编码器（62），其响应于所述光学系统的速度输出信号 电动机（61），控制电动机驱动电路（70）的控制电路（69），使得光学系统（28）从初始位置开始，并在预定点转动，再次返回原位，并施加制动 当光学系统（28）停止在原始位置时，电机（61）和用于响应于编码器的输出来决定施加制动的定时的微型计算机。 通过响应于编码器的输出来决定制动时间，即使当由于光学器件的行进路径（45,59）的组件上的污渍而导致移动负载异常地增加时，光学系统也可以准确地停在原始位置 系统或更换光学系统（28）。
-
公开(公告)号：EP0369866B1
公开(公告)日：1994-04-27
申请号：EP89403108.7
申请日：1989-11-10
IPC分类号： G05B19/407
CPC分类号： G05B19/416
-
公开(公告)号：EP0430298A3
公开(公告)日：1992-09-16
申请号：EP90123011.0
申请日：1990-11-30
CPC分类号： H02P7/293
摘要： In a device for controlling the rotational speed of a motor according to the present invention, feedback control of the number of revolutions of the motor is carried out by a speed difference control signal and a phase difference control signal so that the motor is rotated at constant speed. The phase difference which is a basis of the phase difference control signal is found in a control portion (14) in the following manner. A first time period from the reference time point to the time when the newest detection pulse is outputted is calculated every time a predetermined number of detection pulses are counted by detection pulse counters (131, 133, 134, 136), a second time period from the reference time point to the time when a command pulse, which is assigned an ordinal number equal to the ordinal number of the newest detection pulse, corresponding to the newest detection pulse is outputted is calculated on the basis of the total number of pulses counted by the detection pulse counters in the time period from the reference time point to the time when the newest detection pulse is outputted and the period of the command pulse, and the phase difference between the newest detection pulse and the command pulse corresponding thereto is calculated on the basis of the first time period and the second time period calculated and the period of the command pulse. A phase difference control signal proportional to the phase difference calculated is determined.
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.01 秒)
