High-voltage circuitry system for vehicle

A high-voltage circuitry system for a vehicle, the high-voltage circuitry system comprising:

• a high-voltage battery unit comprising a high-voltage battery and a first switcher, the first switcher being configured to switch a state of supply of electric power from the high-voltage battery between an on state and an off state;
• a traveling system comprising a traveling device configured to cause the vehicle to travel, the traveling system being configured to be driven by the electric power from the high-voltage battery;
• a non-traveling system comprising an in-vehicle device indirectly involved in causing the vehicle to travel, the non-traveling system being configured to be driven by the electric power from the high-voltage battery;
• an electric power distributor configured to distribute the electric power supplied from the high-voltage battery to the traveling system and the non-traveling system;
• an interlock circuit provided in a route of the supply of the electric power from the high-voltage battery unit to the traveling system and the non-traveling system via the electric power distributor, the interlock circuit being configured to be brought into an open state upon occurrence of a nonnormal situation;
• and
• a vehicle control processor configured to control and monitor the high-voltage battery unit, the traveling system, the non-traveling system, the electric power distributor, and the interlock circuit, wherein
• the vehicle control processor is configured to,
• when the interlock circuit is brought into the open state, block the high-voltage battery by turning off the first switcher, and
• after blocking the high-voltage battery, confirm that the traveling system and the high-voltage battery are electrically uncoupled from each other, and turn on the first switcher.