VEHICLE POWER SOURCE

摘要

A vehicle power source includes a first switch, a second switch, a connection point, and a failure determiner. The first switch is switched between conductive/cut-off states of a generator and a first power storage. The second switch is switched between conductive/cut-off states of the generator and a second power storage. The connection point couples a first conduction path, a second conduction path, and a third conduction path to one another, in which the first conduction path is coupled to a positive electrode terminal of the first power storage. The failure determiner executes failure determination processing that involves determining a failure in one or both of the first switch and the second switch, based on control signals of the first switch and the second switch, and a current and a potential of the first conduction path.

主权项

1. A vehicle power source mounted on a vehicle, the vehicle power source comprising:
a generator coupled to an engine and including an output terminal; a first power storage coupled to the generator and including a positive electrode terminal; a second power storage coupled, in parallel with the first storage, to the generator, and including a positive electrode terminal; a first switch switched based on a control signal, between a conductive state and a cut-off state, the conductive state involving coupling of the generator to the first power storage, and the cut-off state involving separation of the generator from the first power storage; a second switch switched based on a control signal, between a conductive state and a cut-off state, the conductive state involving coupling of the generator to the second power storage, and the cut-off state involving separation of the generator from the second power storage; a connection point that couples a first conduction path, a second conduction path, and a third conduction path to one another, the first conduction path being coupled to the positive electrode terminal of the first power storage, the second conduction path being coupled to the positive electrode terminal of the second power storage, and the third conduction path being coupled to the output terminal of the generator; and a failure determiner that executes failure determination processing that involves determining a failure in one or both of the first switch and the second switch, based on the control signal of the first switch, the control signal of the second switch, a current of the first conduction path, and a potential of the first conduction path.