| 摘要 |
<p>A power supply device for a vehicle includes a battery (B1), a power line (power supply line (PL1) and ground line (SL2)), a connection unit (20), a charger (6) that is an electric power supply unit, an accessory load (45), a voltage sensor (13) and a control device (30). When the accessory load (45) is operating, the control device (30) sends signals (CNT1, CNT2 and CNT3) to the connection unit (20) to turn off all of three system main relays (SMR1 - SMR3). Thereby, battery (B1) is electrically disconnected from charger (6). The control device (30) further produces a power command (Pchg) based on a predetermined target voltage and a voltage (VH) detected by the voltage sensor (13) such that the detected voltage (VH) attains the target voltage.</p> |
