Title:
EXCAVATOR AND EXCAVATOR DIAGNOSTIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/040038
Kind Code:
A1
Abstract:
Provided is technology that can collect more reliable diagnostic data. An excavator 100 according to one embodiment comprises a lower traveling body 1, an upper turning body 3 mounted on the lower traveling body 1, an engine 11 mounted to the upper turning body 3, and a main pump 14 mounted to the upper turning body 3 and driven by the engine 11, and collects diagnostic data for the excavator 100 when the engine 11 is operated under fixed operating conditions. Fixed operating conditions include, for example, a condition that represents that the load variation on the engine 11 is relatively small. Fixed operating conditions include, for example, a condition that represents that the engine 11 is in a specified state.
Inventors:
NANBU TAIGA (JP)
OTOH SOUTAROU (JP)
TSUKAMOTO HIROYUKI (JP)
OTOH SOUTAROU (JP)
TSUKAMOTO HIROYUKI (JP)
Application Number:
PCT/JP2020/032784
Publication Date:
March 04, 2021
Filing Date:
August 28, 2020
Export Citation:
Assignee:
SUMITOMO CONSTRUCTION MACHINERY CO LTD (JP)
International Classes:
E02F9/20; E02F9/26; G01M17/007
Domestic Patent References:
| WO2018155629A1 | 2018-08-30 |
Foreign References:
| JP2010198159A | 2010-09-09 | |||
| JP2019031205A | 2019-02-28 | |||
| JP2015063864A | 2015-04-09 | |||
| JP2016023489A | 2016-02-08 | |||
| JP2019156621A | 2019-09-19 | |||
| JP2019156622A | 2019-09-19 | |||
| JP2019186174A | 2019-10-24 | |||
| JP2019199299A | 2019-11-21 |
Other References:
See also references of EP 4023820A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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