Patent attributes
An electric power source system for a vehicle includes: a high-voltage battery; a first electric power source arrangement; a second electric power source arrangement; and a third electric power source arrangement, wherein the first electric power source arrangement includes a first DCDC converter and a first battery and is configured to supply the electric power to a first load including at least an automatic driving system, the second electric power source arrangement includes a second DCDC converter and a second battery and is configured to supply the electric power to a second load including at least a steering ECU, a brake ECU, and an information communication unit, and the third electric power source arrangement includes a connection controller and a third battery and is configured to supply the electric power to a third load including at least the steering ECU, the brake ECU, and the information communication unit.