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Title:
MOTOR CONTROL METHOD AND CONTROL UNIT
Document Type and Number:
Japanese Patent JP3777936
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a motor control method and a control unit, which enable accurate control, while maintaining behavior stability of a motor in the case of reduction control.
SOLUTION: In this motor control method, when the maximum, speed of the motor as the object of control is Vmax, reduction control section distance from a reduction control section starting position to an aimed stop position is N, and the distance from the starting position to a present position is x, a waveform pattern of a target speed Vc which is expressed by formula Vc= Vmax{1-(x/N)a}, where a is an arbitrary constant is formed in the reduction control section. Reduction in control of the motor is performed, on the basis of the waveform pattern of the aimed speed Vc. This motor control unit is provided with a speed commanding means, which forms the waveform pattern of the target velocity Vc and forms and outputs a speed command signal for commanding the aimed speed Vc, on the basis of the waveform pattern of the target speed Vc.


Inventors:
田 中 啓 友
Application Number:
JP2000032035A
Publication Date:
May 24, 2006
Filing Date:
February 09, 2000
Export Citation:
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Assignee:
セイコーエプソン株式会社
International Classes:
B65H5/06; H02P3/08; H02P7/03; H02P7/06; H02P8/14; H02P29/00; (IPC1-7): H02P3/08; B65H5/06; H02P5/00; H02P7/06; H02P8/14
Domestic Patent References:
JP57183283A
JP11346491A
JP11184528A
JP5161374A
Attorney, Agent or Firm:
佐藤 一雄
橘谷 英俊
佐藤 泰和
高橋 佳大