METHOD FOR DETECTING AN ON/OFF CHANGE OF STARTING POWER FOR ELECTRONIC EQUIPMENT IN A VEHICLE USING AN ON BOARD DIAGNOSTICS TERMINAL

摘要

PURPOSE: A method for detecting an on/off change of starting power for electronic equipment in a vehicle is provided to safely and accurately supply battery power to electronic equipment for a vehicle by recognizing an on/off change of starting power.;CONSTITUTION: A method for detecting an on/off change of starting power for electronic equipment in a vehicle is as follows. When the starting power of a vehicle is turned off, a battery voltage value is measured. A first condition is determined whether a difference between current battery voltage values is more than a starting power recognition critical value(S100). A second condition is determined whether a reed signal is periodically detected for a pre-determined time(S110). A third condition is determined whether communication with electronic equipment is normally operated(S120).;COPYRIGHT KIPO 2011