Title:
SHOVEL
Document Type and Number:
WIPO Patent Application WO/2016/017674
Kind Code:
A1
Abstract:
On a shovel 1 are mounted a lower travel body 2, an upper turning body 3, an excavation attachment including a boom 4 and an arm 5, a controller 30, an engine 11, and a hydraulic pump 10 for discharging hydraulic oil, the hydraulic pump being driven by the engine 11 and driving the attachment. The controller 30 acquires the hydraulic load that is applied to the attachment, and computes engine speed instructions at prescribed time intervals on the basis of the acquired hydraulic load. The engine speed instruction increases as the hydraulic load increases. Also, the engine speed instruction reaches a maximum value at substantially the same time that the hydraulic load reaches a maximum value.
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Inventors:
MATSUZAKI EISUKE (JP)
KITAJIMA DAISUKE (JP)
KITAJIMA DAISUKE (JP)
Application Number:
PCT/JP2015/071467
Publication Date:
February 04, 2016
Filing Date:
July 29, 2015
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
SUMITOMO SHI CONSTR MACH CO (JP)
SUMITOMO SHI CONSTR MACH CO (JP)
International Classes:
F02D29/04; E02F9/20; F02D29/00; F02D45/00
Domestic Patent References:
| WO2012046788A1 | 2012-04-12 |
Foreign References:
| JP2012180683A | 2012-09-20 | |||
| JP2001193702A | 2001-07-17 | |||
| JPH06241212A | 1994-08-30 | |||
| JP2012246631A | 2012-12-13 |
Other References:
See also references of EP 3176413A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)
Tadashige Ito (JP)
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