Importance

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Abstract

A vehicle power supply system includes: a first power supply; a second power supply; a first switch inserted between the first power supply and a first load belonging to a load group of a first system; a second switch inserted between the second power supply and a second load belonging to a load group of a second system; a third switch inserted between the first power supply and the second power supply; a first switch; a second switch; and a control unit for controlling a state of conduction/disconnection of the third switch, wherein, when an abnormality occurs in power supply, the control unit controls the first switch, the second switch, and the third switch, and identifies a location where the abnormality occurs based on a current flowing through the first switch and a current flowing through the second switch.

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First Claim