Title:
NUMBER-OF-REVOLUTIONS CONTROLLER
Document Type and Number:
Japanese Patent JP2944940
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve a number-of-revolutions controller so that driving motors for constituting units can be controlled with different toque transition characteristics, by placing filters in the individual control sections of sub-driving motors in order to smooth the target current value of a main driving motor.
SOLUTION: A number-of-revolutions controller 28 sends out a target current value on its output side to the current adding point 29 of a main driving motor 18 on the one hand and to the target current value transmitters 38 in control sections 36, 37 of sub-driving motors 19, 21 on the other hand. The target current value of the main driving motor 18 is smoothed at the target current value transmitters 38, and target current values for the sub-driving motors 19, 21 are supplied to the first input side of a current summing point 41 using a level matching section 39. The actual current values of the sub-driving motors 19, 21 detected by an actual current value transmitters 44 are compared with the target current value there. Filters 46 for smoothing target current values are advantageously used as low-pass filters.
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Inventors:
RYUUDEIGAA KAARU ZAIFURIITO
Application Number:
JP26454596A
Publication Date:
September 06, 1999
Filing Date:
October 04, 1996
Export Citation:
Assignee:
KEENITSUHI UNTO BAUERU ARUBAATO AG
International Classes:
B41F33/00; B41F13/004; B41F33/08; H02P5/46; (IPC1-7): H02P5/46; B41F33/00
Domestic Patent References:
| JP53119711A | ||||
| JP62240552A | ||||
| JP6155720A | ||||
| JP8328663A | ||||
| JP813542B2 |
Attorney, Agent or Firm:
Toshio Yano (2 outside)
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