Electric car real driving energy consumption test, evaluation and prediction method

Abstract

The present invention provides an electric car real driving energy consumption test, evaluation and prediction method. Three energy consumption evaluation coefficients [Beta]0, [Beta]1, [Beta]2 to accurately predict the electric car real driving energy consumption, and the decision coefficient of the fitting result of the three evaluation coefficients reaches up to 0.99. The method provided by the method only needs the electric car driving time, speed and energy consumption data of more than three routes to realize the electric car energy consumption test, evaluation and prediction. The method is simple, the calculated amount is small, and the method is easy to use and popularized. The time, the vehicle speed and the charging energy consumption information of the method can be accurately obtained in the condition without any changing, and the method provided by the invention is very suitable for the online monitoring, evaluation and prediction of the electric car energy consumption condition. The relative error of the energy consumption rate obtained by the real measurement and the predicated energy consumption rate is about 1%, and the maximum of the relative error does not exceed 3%, and the method provided by the invention is employed to accurately predict the energy consumption of the electric car.

Description

technical field [0001] The invention relates to the field of automobile energy consumption evaluation methods, in particular to a method for testing, evaluating and predicting the actual running energy consumption of pure electric vehicles. Background technique [0002] As environmental issues are getting more and more attention, electric vehicles have become an important part of future green transportation. In recent years, countries have introduced a series of policies to promote the development of electric vehicles. The main purpose of promoting electric vehicles is to achieve energy saving and emission reduction in the transportation field, but there are still obvious deficiencies in the evaluation method of the energy consumption of electric vehicles. At present, the test and evaluation conclusions of electric vehicle energy consumption cannot be used to accurately predict the energy consumption of electric vehicles in actual driving. [0003] The driving energy consu...

AI Technical Summary

Problems solved by technology

[0006] Academically, the simulation model can be used to relatively accurately predict the energy consumption characteristics of electric vehicles under different working conditions, but the simulation model is not only very complicated, it is not universal, and requires a large number of complex and detailed vehicle parameters

These parameters cannot be directly obtained through the test of the whole vehicle, so this method cannot be applied to the test, evaluation and prediction of actual electric vehicles

Images