DETERIORATION DETERMINATION DEVICE

WIPO Patent Application WO/2024/014072

A1

Provided is a deterioration determination device capable of more appropriately determining element deterioration.　A deterioration determination device (1) determines whether each of a first switch (33A) and a fuse (F) provided in a power path (11) that is a path for transmitting power from a power supply unit (10) to a load is in a deteriorated state or not. The power path (11) has a positive electrode-side power line (17) and a negative electrode-side power line (20). The first switch (33A) and the fuse (F) are provided in the negative electrode-side power line (20). The deterioration determination device (1) comprises: a first potential detection unit (39A) that detects a first potential on one end side of the first switch (33A) and a second potential on the other end side; a second potential detection unit (39B) that detects a first potential on one end side of the fuse (F) and a second potential on the other end side; and a control unit (15) that, on the basis of a potential difference (V1, V2) between the first potential and the second potential, determines whether each of the first switch (33A) and the fuse (F) is in a deteriorated state or not.

OKAMOTO TAKAHIRO (JP)
SHIMODA HIROKI (JP)
YANAGIDA TAIJI (JP)
HASHIKURA MANABU (JP)
UCHIDA KOKI (JP)
KAWAKAMI TAKAFUMI (JP)

PCT/JP2023/014615

January 18, 2024

April 10, 2023

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AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)

H01H1/00; H01H9/54; H01H47/00

JP2006216516A	2006-08-17
US20210402938A1	2021-12-30
JP2020137334A	2020-08-31
JP2013188088A	2013-09-19

GRANDOM PATENT LAW FIRM (JP)

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