Analysis of Factors Affecting the Accuracy Evaluation of Range Estimation of Pure Electric Vehicles Based on CLTC-P

The estimation accuracy of the cruising range of electric vehicles is an important performance index of electric vehicles. Improving the accuracy of cruising range estimation is of great significance for improving the user acceptance of electric vehicles. This paper carried out vehicle tests under normal temperature environment based on China light-duty vehicle test cycle for passenger car (CLTC-P) under different battery state of charge and long-distance constant-speed driving, and use the determination coefficient to analyze and evaluate the accuracy of the metered range mileage. At the same time the paper deeply study the impact of different data collection frequencies and the vehicle's metered range self-learning mode on the accuracy of the range mileage. This study provides theoretical support for the use of certain coefficients to study the accuracy of the estimated range of pure electric vehicles under unified scenarios and specific working conditions, and to establish a test and evaluation method for the accuracy of range of electric vehicles