Vehicle power source

A vehicle power source mounted on a vehicle, the vehicle power source comprising:

• a motor generator coupled to an engine;
• a power storage coupled to the motor generator, the power storage comprising a first power storage and a second power storage, the first power storage and the second power storage coupled, in parallel with one another, to the motor generator;
• a switch controlled between a conductive state and a cut-off state, the conductive state involving coupling the motor generator to the power storage, and the cut-off state involving separating the motor generator from the power storage, the switch comprising:
• a first switch controlled between a first conductive state and a first cut-off state, the first conductive state involving coupling the motor generator to the first power storage, and the first cut-off state involving separating the motor generator from the first power storage;
• and
• a second switch controlled between a second conductive state and a second cut-off state, the second conductive state involving coupling the motor generator to the second power storage, and the second cut-off state involving separating the motor generator from the second power storage;
• an abnormality detector that is provided separately from the motor generator and detects abnormality of the motor generator;
• and
• a switch controller that is provided separately from the motor generator and controls 1) the first switch from the first conductive state to the first cut-off state and 2) the second switch from the second conductive state to the second cut-off state when the abnormality of the motor generator is detected.