To provide a power supply control device for a vehicle for avoiding any consequence in which an engine becomes impossible to be started by a progress of battery deterioration because a user postpones battery exchange disregarding battery deterioration notification.
The power supply control device includes a starter control part for supplying electric power to a starter motor by controlling a main connector in response to an engine start request, and a reset detection part for detecting a temporary stop based on a drop of a power-supply voltage at an engine control part for controlling essential control for the engine start by using a battery for the power supply. The starter control part suppresses the electric power supplied to the starter motor when the electric power is supplied to the starter motor in response to a first engine start request after a temporary stop of the engine control part is detected.
KAWAGUCHI TOMOHIRO
NAGAHAMA TAKAHIRO
NOMOTO SHINICHI
SUMITOMO ELECTRIC INDUSTRIES
FURUKAWA ELECTRIC CO LTD
YAZAKI CORP
Takeji Takada