| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a highly reliable vehicular power source device, which reduces the possibilities of misunderstanding of a failure when a vehicle is initially started or when the vehicle is not in use. <P>SOLUTION: The power source device for the vehicle comprises a main power source 11, an electric storage device 13 to be connected to the main power source 11 and to storage electric power of the main power source 11, and an accessory load 15 connected to the electric storage device 13. When a voltage (Vb) of the main power source 11 becomes not greater than a threshold value, the electric storage device 13 allows to supply the electric power from an electric storage portion 31 built in the electric storage device 13 into the accessory load 15. When the vehicle is not in use, and when the vehicle is initially started from a state that the vehicle is not used, the electric storage device 13 is prohibited to supply the electric power from the electric storage portion 31 into the accessory load 15. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
