METHOD FOR PREDICTING ENERGY CONSUMPTION-RECOVERY RATIO OF NEW ENERGY VEHICLE, AND ENERGY SAVING CONTROL METHOD AND SYSTEM

Provided are a method for predicting an energy consumption-recovery ratio of a new energy vehicle, and an energy saving control method and system for the new energy vehicle. The method for predicting the energy consumption-recovery ratio includes the following steps: acquiring, by means of an electronic horizon system, geographic information data of a position that is K meters ahead on a road from a current position of the new energy vehicle; compiling statistics on speed information during the process of the new energy vehicle traveling S meters to reach the current position, values of K and S being the same; and taking the geographic information data and the speed information as input vectors, inputting the geographic information data and the speed information into a trained artificial neural network, and outputting a predicted energy consumption-recovery ratio. According to the present invention, energy control over the vehicle is optimized, the utilization rate of electrical energy is improved, and the traveling mileage is increased.