Title:
CONTROL SYSTEM, AND CRANE
Document Type and Number:
WIPO Patent Application WO/2021/070971
Kind Code:
A1
Abstract:
This control system for controlling an actuator of a crane is provided with a signal processing unit for generating a signal related to a target operating amount of the actuator, a feedback control unit for controlling the actuator on the basis of the difference between the signal relating to the target operating amount, and a fed-back signal relating to the operating amount of the actuator, and a feed-forward control unit which controls the actuator on the basis of the signal relating to the target operating amount, in cooperation with the feedback control unit, and learns the characteristics of the actuator by adjusting a weighting factor on the basis of a teaching signal, wherein the signal processing unit converts an input signal into the signal relating to the target operating amount by removing a pulse-shaped component from the input signal.
Inventors:
MINAMI YOSHIMASA (JP)
Application Number:
PCT/JP2020/038521
Publication Date:
April 15, 2021
Filing Date:
October 12, 2020
Export Citation:
Assignee:
TADANO LTD (JP)
International Classes:
G05B11/32; B66C13/22; G05B13/02; G05B13/04
Domestic Patent References:
| WO2013190821A1 | 2013-12-27 |
Foreign References:
| JP2018092279A | 2018-06-14 | |||
| JP2019156609A | 2019-09-19 | |||
| JP2013184826A | 2013-09-19 | |||
| JP2017117366A | 2017-06-29 | |||
| JP2009217417A | 2009-09-24 | |||
| JP2019164484A | 2019-09-26 | |||
| JP2010228905A | 2010-10-14 | |||
| JPH0781876A | 1995-03-28 | |||
| JP2019187994A | 2019-10-31 |
Other References:
See also references of EP 4043967A4
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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