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1. (WO2018101012) POWER SUPPLY CONTROL DEVICE, POWER SUPPLY CONTROL METHOD, AND COMPUTER PROGRAM

Pub. No.:    WO/2018/101012    International Application No.:    PCT/JP2017/040760
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Tue Nov 14 00:59:59 CET 2017
IPC: H02H 5/04
G01R 22/06
H02H 7/00
Applicants: AUTONETWORKS TECHNOLOGIES, LTD.
株式会社オートネットワーク技術研究所
SUMITOMO WIRING SYSTEMS, LTD.
住友電装株式会社
SUMITOMO ELECTRIC INDUSTRIES, LTD.
住友電気工業株式会社
Inventors: FURUTO, Ken
古戸 健
Title: POWER SUPPLY CONTROL DEVICE, POWER SUPPLY CONTROL METHOD, AND COMPUTER PROGRAM
Abstract:
A power supply control device (12) controls the supply of power, which is supplied via an electric wire (W1). A control unit of a microcomputer (23) periodically fetches an electric wire current value flowing in the electric wire (W1), and calculates the square value of the fetched electric wire current value. The control unit of the microcomputer (23) calculates the electric wire temperature of the electric wire (W1) each time n (n: integer of 2 or greater) periods relating to fetching of the electric wire current elapse. The control unit of the microcomputer (23) determines whether or not the integrated value of the square value of k items, calculated at the kth (k: natural number of n or less) period from the first period of the n periods, is an integrated threshold value or greater. The control unit of the microcomputer (23) changes the integrated threshold value to be a smaller value the higher that the calculated electric wire temperature is.