POWER CIRCUIT CONNECTING A IGNITION SWITCH WITH A PLURALITY OF ECUS

摘要

The invention am connected to geusyeon switch connected to the plurality of Lee yudeul and a relay which is connected to the ignition switch, driving the headlight, the relay having a pull-down resistor for detecting the on-off state of the ignition switch of the headlight as on-off switch for the, and the headlight-on lamp status detection with a pull-up resistor for sensing a state of the off switch, Lee oil, for the power connection circuit of the ignition switch, the switch of the relay is connected to the ignition switch, the coil of the relay for operating the switch of the relay is connected to the battery power the lamp state detection Lee noted is connected to the pull-up resistor; To the lamp status detection Lee oil, having an input port for receiving an on-off signal of the switching elements for switching the connection to the coil of the relay is connected to the lamp status detection Lee noted the pull-up resistor to ground, the ignition switch, controls the turns on the switching elements of the ignition switch is characterized by comprising a microcomputer for controlling so that the relay coil is connected to ground. In this way, connected to the ignition switch can be prevented Lee significant malfunction by blocking the current flow by the significant resistance Lee for sensing the on-off state of the ignition switch.