Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/180997
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a work machine in which operability when a hydraulic actuator starts to move can be improved during a minor operation in which an operation lever is operated by a small amount. To achieve this purpose, on the basis of a signal from a first timing detection device and a signal from a second timing detection device, a body controller controls a pump discharge flow rate to a minimum discharge flow rate before the first timing is detected, controls the pump discharge flow rate to a prescribed discharge flow rate greater than the minimum discharge flow rate after the first timing is detected and before the second timing is detected, and controls the pump discharge flow rate to a discharge flow rate corresponding to the operation amount of the operation lever after the second timing is detected.
Inventors:
HOSHINO MASATOSHI (JP)
HIJIKATA SEIJI (JP)
TSURUGA YASUTAKA (JP)
HIJIKATA SEIJI (JP)
TSURUGA YASUTAKA (JP)
Application Number:
PCT/JP2021/046387
Publication Date:
September 01, 2022
Filing Date:
December 15, 2021
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F9/22
Foreign References:
| JP2015209943A | 2015-11-24 | |||
| JP2019044933A | 2019-03-22 | |||
| JP2014055635A | 2014-03-27 | |||
| JPH07139510A | 1995-05-30 | |||
| JP3828680B2 | 2006-10-04 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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