Autonomous driving control system and method of vehicle

An autonomous driving control system of a vehicle comprising a processor, a navigation, and a driving controller communicatively connected to one another, wherein:

• the navigation is configured to identify candidate driving routes based on a destination and to search for a charging station for a power source of the vehicle on each of the candidate driving routes,
• the processor is configured to estimate a charging amount of the power source that drives a driving device of the vehicle for each of the candidate driving routes,
• the processor is further configured to calculate a charging cost of the power source based on cost information of the charging station on each of the candidate driving routes, determine a minimum cost strategy that requires a minimum charging cost among the calculated charging costs for all the candidate driving routes as a charging strategy, and select one of the candidate driving routes requiring the minimum charging cost among the candidate driving routes as a driving route,
• the driving controller is configured to autonomously drive the vehicle based on the selected driving route and the charging strategy, and
• the driving controller divides the selected driving route into a plurality of sections based on driving information of the selected driving route, allocates a required time for each section, and autonomously drives the vehicle based on an optimum fuel economy according to the required time allocated for each section and the driving information.