Title:
MONITORING ASSISTANCE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/149117
Kind Code:
A1
Abstract:
In the present invention, a storage unit of a monitoring assistance system (6) stores first correlation information indicating the relationship between turbocharger efficiency and reference measurement values obtained by converting, to a prescribed standard state, respective measurement values of parameters in a prescribed first parameter group acquired by a first sensor group during a land test of a diesel engine (1). A correction unit converts measurement values of the first parameter group acquired by the first sensor group when a vessel (100) is underway, and acquires first corrected measurement values. A computation unit obtains the amount of change in turbocharger efficiency on the basis of the first correlation information and the first corrected measurement values of the first parameter group. It is thereby possible to accurately evaluate the turbocharger efficiency of a diesel engine (1) upon excluding the effects of sea conditions, etc. It is also possible to accurately evaluate the fuel consumption rate of the diesel engine (1) by calculating the fuel consumption rate using the turbocharger efficiency.
Inventors:
KOBAYASHI TATSUYA (JP)
Application Number:
PCT/JP2022/047389
Publication Date:
August 10, 2023
Filing Date:
December 22, 2022
Export Citation:
Assignee:
HITACHI ZOSEN CORP (JP)
International Classes:
B63B49/00; B63B79/30; F02B39/16; F02D45/00
Domestic Patent References:
| WO2016151810A1 | 2016-09-29 |
Foreign References:
| JP2003269183A | 2003-09-25 | |||
| JP2015108333A | 2015-06-11 | |||
| JP6898795B2 | 2021-07-07 | |||
| JP6970545B2 | 2021-11-24 | |||
| JP2015108331A | 2015-06-11 | |||
| JP2002221076A | 2002-08-09 | |||
| JP3028971U | 1996-09-17 |
Attorney, Agent or Firm:
MATSUSAKA, Masahiro et al. (JP)
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