SYSTEM AND METHOD OF DRIVING RANGE ESTIMATION BASED ON A TORQUE INPUT AND VEHICLE INCLUDING THE SAME

A method of driving range estimation includes: receiving a first signal indicating a shift of the vehicle out of park; calculating a torque-to-acceleration ratio of the vehicle based on a measured acceleration of the vehicle and a measured torque of the vehicle once driving begins; comparing the calculated torque-to-acceleration ratio at the measured acceleration to average torque-to-acceleration ratios for the vehicle; determining whether the calculated torque-to-acceleration ratio is included in the average torque-to-acceleration ratios stored in the memory; determining a new energy efficiency estimation based on the torque-to-acceleration ratios that are closest to the calculated torque-to-acceleration ratio when the calculated torque-to-acceleration ratio is not included in the average torque-to-acceleration ratios; calculating the driving range estimation based on one of the existing energy efficiency estimation and the new energy efficiency estimation; displaying the driving range estimation; updating the driving range estimation displayed while driving; and storing the new energy efficiency associated.