VEHICLE DOOR DEVICE DIAGNOSTIC SYSTEM AND VEHICLE DOOR DEVICE DIAGNOSTIC METHOD

Japanese Patent JP2023151268

A

To provide a vehicle door device diagnostic system capable of saving power in manual inspection work of a vehicle facility.SOLUTION: A vehicle door device diagnostic system 100 includes a storage unit, operation index generation units 30a, 30b, warning issuing units 40a, 40b, and an abnormality cause estimation unit 70. The storage unit stores management information indicating warning, which shows operation abnormality, a name of a portion which can be a source of the operation abnormality among portions constituting the vehicle door devices, and a failure mode of estimated failure for each operation abnormality of opening/closing operation of vehicle door devices 20a, 20b. The operation index generation unit generates an operation index for smoothness of the opening/closing movement of the vehicle door devices for each opening/closing operation of the vehicle door devices. The warning issuing unit detects a sign of operation abnormality of the vehicle door devices based on the generated operation index and issues warning indicating the detected operation abnormality. The abnormality cause estimation unit identifies the name of a portion corresponding to the operation abnormality indicated by the issued warning and its failure mode from the management information.SELECTED DRAWING: Figure 1

SUZUKI MOTOYA
MIYAUCHI TSUTOMU
MAKI KENTARO
IMAMOTO KENJI
ITO SATORU
ISHIKAWA KATSUMI

JP2022060787A

October 16, 2023

March 31, 2022

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HITACHI LTD

B61D19/02; B60L3/00; B61L25/04

Patent Attorney Corporation Sunnext International Patent Office

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