Title:
IN-VEHICLE POWER SUPPLY NETWORK
Document Type and Number:
WIPO Patent Application WO/2024/057741
Kind Code:
A1
Abstract:
An in-vehicle power supply network according to the present invention is an in-vehicle power supply network that supplies power to a load installed in a vehicle through a plurality of nodes in the vehicle. The plurality of nodes includes a first node that feeds out power, and a second node that receives the power fed out from the first node. The first and the second node are connected by a power line over which power is supplied, and a signal line over which information relating to the power is transmitted. Each of the first and second nodes includes a current measurement unit for measuring current values entering and exiting the own nodes via the power line, a current input/output unit that performs input/output of current proportionate to a current value between the signal line and the own node, and a potential measurement unit that measures potential of the signal line. The signal line is terminated at a terminal potential via a resistor, and in a case in which the potential of the signal line differs from the terminal potential, diagnosis is made that an abnormality is occurring somewhere in the in-vehicle power supply network.
Inventors:
KANEKAWA NOBUYASU (JP)
NAKANO HIROSHI (JP)
FUKUDA TAKAO (JP)
JUMONJI KENTARO (JP)
NAKANO HIROSHI (JP)
FUKUDA TAKAO (JP)
JUMONJI KENTARO (JP)
Application Number:
PCT/JP2023/027758
Publication Date:
March 21, 2024
Filing Date:
July 28, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
G01R31/52
Foreign References:
| JP2006007895A | 2006-01-12 | |||
| JP2020120479A | 2020-08-06 | |||
| US20050001431A1 | 2005-01-06 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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