BATTERY ENERGY ALLOCATION SYSTEM AND BATTERY ENERGY ALLOCATION METHOD FOR ELECTRIC VEHICLE

A battery energy allocation system and a battery energy allocation method for an electric vehicle are disclosed. The system includes an input device receiving driver input, including at least driver input to charge a vehicle battery during vehicle traveling and driver input indicating no charging during travel, and a controller configured to sequentially allocate battery energy to a vehicle traveling demand and an HVAC demand, based on the priority of the vehicle traveling demand being higher than the priority of the HVAC demand, in response to the input device receiving the driver input indicating no charging during travel, and to synchronously allocate battery energy to the vehicle traveling demand and the HVAC demand in response to the input device receiving the driver input to charge the vehicle battery during vehicle traveling.