Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HYDRAULIC WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/168477
Kind Code:
A1
Abstract:
A pump control device (14) and a valve control device (13) each comprise: command calculators (2 to 7) which calculate a control command for operating a controlled subject (100) through use of the operation amount of an operation and at least one control parameter and which input the control command to the controlled subject (100); and an ideal output calculator (10) which calculates an ideal output for an actuator (27) which is an ideal output associated with the operation amount of the operation. The pump control device (14) adjusts at least one pump control parameter so that a difference between a control output and the ideal output becomes smaller when the operation of the movable unit (24) is power-running operation. The valve control device (13) adjusts at least one valve control parameter so that a difference between the control output and the ideal output becomes smaller when the operation of the movable unit (24) is non-power-running operation.

Inventors:
KOIWAI KAZUSHIGE
ONO YOHEI
YUMOTO NATSUKI
WAKITANI SHIN
YAMAMOTO TORU
Application Number:
PCT/JP2021/047443
Publication Date:
August 11, 2022
Filing Date:
December 21, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KOBELCO CONSTR MACH CO LTD (JP)
UNIV HIROSHIMA (JP)
International Classes:
F15B11/028; E02F9/20; E02F9/22; F15B11/02; F15B11/04; F15B11/042; F15B11/08
Foreign References:
JP2012225084A2012-11-15
JP2014222006A2014-11-27
JPH09236101A1997-09-09
US20150059568A12015-03-05
JPH11311203A1999-11-09
JPH05195546A1993-08-03
JP2017110774A2017-06-22
JP2019044933A2019-03-22
JP2012225084A2012-11-15
Attorney, Agent or Firm:
KOTANI, Masataka et al. (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: RESIN COMPOSITION, OPTICAL FIBER, OPTICAL FIBER MANUFACTURING METHOD, OPTICAL FIBER RIBBON, AND OPTI...

Next Patent: MODULE