Electric-quantity-based path planning method for electric vehicle compatible with energy storage charging pile

An electric-quantity-based path planning method for an electric vehicle compatible with an energy storage charging pile, wherein a power supply source of the energy storage charging pile is complementary energy storage for generating electricity from new energy or purchasing electricity from a power grid, comprising:

• 1) submitting state information via charging piles in a network to a dispatching system platform;
• 2) an electric vehicle user applying to the dispatching system platform for an electric quantity application reservation from a departure place (O) to a destination (D) through a network connection before departure, wherein the electric quantity application reservation comprises an electric vehicle model, a vehicle load quality, a departure time, departure place (O), the destination (D) and a remaining electric quantity of a power battery of the electric vehicle user at the departure time;
• 3) finding a shortest path (lz) from a departure place (O) to a destination (D) on an existing map, where z=1 in the dispatching system platform;
• 4) reserving the allocated electric quantity at each charging pile;
• 5) selecting one or more charging piles along the shortest path (lz) according to the state information of the charging pile submitted by each charging pile and the electric quantity reservation application submitted by the electric vehicle user;
• 6) determining whether the reserved allocated electric quantity at one or more selected charging by a dispatching system platform meets an endurance requirement of the electric vehicle for driving from the departure place (O) to the destination (D) and if not, skipping steps 7-8;
• 7) generating a whole-journey reservation scheme for the electric vehicle in the dispatching system platform by assigning each reserved charging pile on the shortest path (lz) and the corresponding reserved allocated electric quantity for the electric vehicle, and returning information of successful reservation to the electric vehicle user to end the reservation;
• 8) guiding the electric vehicle to travel and charge according to the whole-journey reservation scheme in the dispatching system platform after the electric vehicle departs from the departure place (O);
• 9) excluding the shortest path (lz), where z=z+1, and then finding a new shortest path (lz) from the departure place (O) to the destination (D) in the dispatching system platform;
• 10) executing Steps 6-9 if the new shortest path (lz) is found, and returning information of failed reservation to the electric vehicle user if the new shortest path (lz) is not found.