| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power supply control device for a vehicle capable of suppressing the cost and a large-sized construction without increasing the number of relays or the size of relay even if the number of loads is increased. SOLUTION: The electric power supply control device of the vehicle includes a first power supply line 12 which supplies the power from a battery 11 at all times to a static memory 22, a second power supply line 14 which is connected with the battery 11 through a main relay 13 and whereto a plurality of second loads 17 are connected, and a microcomputer 21 actuated on the basis of the power supplied from the second power line 14 for controlling the drive of the second loads 17. Between the first power line 12 and the specified part of the second power line 14 a switching element 25 is installed to put on and off the power supplied to the second line 14 from the first 12. The microcomputer 21 emits an on-off signal to the switching element 25 on the basis of the prescribed conditions and controls the on-off operation of the switching element 25. COPYRIGHT: (C)2004,JPO&NCIPI
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