ELECTRICITY SOURCE SYSTEM FOR DRIVING VEHICLE

摘要

An electricity source system for driving a vehicle has a battery (B), a step-up converter (12) for raising the voltage of the battery (B), a capacitor (40) where the voltage raised by the step-up converter (12) is applied across terminals, system main relays (C-SMRP, C-SMRG) provided between the outputs of the capacitor (40) and the step-up converter (12) and performing connection and separation between the capacitor (40) and the step-up converter (12), and a control device (30) for controlling the step-up converter (12) and the system main relays (C-SMRP, C-SMRG). After issuing an instruction for the separation to the system main relays (C-SMRP, C-SMRG), the control device (30) causes the step-up converter (12) to change its output voltage and determines whether the system main relays (C-SMRP, C-SMRG) are normally separated.