| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vehicular power supply system capable of properly executing power transportation between an electric storage devices. <P>SOLUTION: The vehicular power supply system has a low pressure system battery 10 which is a power supply of a low pressure system load 50, a high pressure system battery 60 which is a power supply of the high pressure system load 60, a generator 21 capable of charging generated power to the low pressure system battery 10, and a DC/DC converter 30 executing power transportation from the high pressure battery 60 to the low pressure battery 50. In case that a state of the low pressure system battery 10 satisfies predetermined conditions indicating deterioration of power supply performance, power generating amount by the generator 21 is increased when the high pressure system load 60 is in an operating state, and the power transportation by the DC/DC converter 30 is executed when the high pressure system load 60 is in a non-operating state. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
