To provide a vehicular power supply system capable of realizing a normal evasive action for a vehicle motion system even when any abnormal communication occurs between a control device for controlling a power supply system and a control device of the vehicle motion system to be power-supplied from the power supply system.
A control device of a power supply system includes an HV_ECU320 and an EPS_ECU420, and an IG ON/OFF signal is input therein separately. The HV_ECU 320 controls the opening/closing operation of an SMR (System Main Relay) 500 for electrically connecting/disconnecting a battery 220 for traveling to/from a load based on the operation of an occupant on a hybrid vehicle. When it is detected that the communication line is abnormal, the HV_ECU 320 does not turn off the SMR 500 before the set delay time is elapsed even when the IG OFF signal is input. The EPS_ECU 420 executes the evasive action during the delay time after the IG OFF signal is input.
Toshio Morita
Tadashi Muto
Next Patent: JOINT STRUCTURE OF INTERIOR PANEL COMPONENT FOR VEHICLE