Title:
診断装置及び診断方法
Document Type and Number:
Japanese Patent JP7230853
Kind Code:
B2
Abstract:
A management device 100 comprises: a data acquisition unit 122 that acquires, from a plurality of vehicles 1, cumulative data for each parameter relating to stress acting on a compressor 33 for supercharging intake air delivered to an engine, and supercharging pressure exerted by the compressor 33; a damage degree specification unit 123 that specifies the degree of damage of a supercharging device 32 from the acquired cumulative data; a relationship specification unit 24 that specifies a relational expression indicating the relationship between the specified degree of damage and the supercharging pressure; a target information acquisition unit 125 that acquires the supercharging pressure exerted by the compressor 33 from a vehicle 1 to be diagnosed; and a diagnostic unit 126 that estimates the degree of damage of the compressor 33 to be diagnosed on the basis of the acquired supercharging pressure and the specified relational expression.
Inventors:
Toshiyuki Usui
Application Number:
JP2020033207A
Publication Date:
March 01, 2023
Filing Date:
February 28, 2020
Export Citation:
Assignee:
Isuzu Motors Limited
International Classes:
F02B39/16; F02B77/08
Domestic Patent References:
| JP2005248952A | ||||
| JP2005351129A | ||||
| JP2009108680A | ||||
| JP2015108331A | ||||
| JP2015108333A | ||||
| JP2015129488A | ||||
| JP2019190435A |
Foreign References:
| WO2016151810A1 |
Attorney, Agent or Firm:
Izumi Toshihiro
Hisato Kuroiwa
Kyosuke Kutsune
Kensuke Terakawa
Hisato Kuroiwa
Kyosuke Kutsune
Kensuke Terakawa
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