A method for predicting the cruising range of electric vehicles

Abstract

The invention relates to a prediction method of the driving mileage of an electric car. The prediction method comprises the steps that the traveling mileage of the electric car is obtained; a first SOC difference value of the traveling mileage of the electric car is obtained; a first SOC value during initial charging of the electric car is obtained; a calculation model of the driving mileage is established according to the traveling mileage, the first SOC difference value and the first SOC value; and the driving mileage is obtained according to the calculation model of the driving mileage. According to the prediction method of the driving mileage, calculation is conducted according to the actual condition, the prediction method conforms to the actual application situation of the electric car, the prediction method is high in accuracy rate, timely and accurate data can be provided for a car owner, and the using situation of the electric car is mastered conveniently by the car owner in time so as to avoid the situation that the car owner cannot master the actual driving mileage of the electric car and consequently generates anxious emotion.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to a method for predicting the cruising range of electric vehicles. Background technique [0002] In 1881, the world's first electric vehicle powered by a rechargeable battery appeared on the streets of Paris, France. Later, due to the rise of internal combustion engine vehicles, electric vehicles almost disappeared. But entering the 21st century, due to the importance of "energy security" and "environmental protection" being gradually valued by the country, electric vehicles have begun to rise again. [0003] Existing electric vehicles are mainly divided into two types, one is pure electric vehicles; the other is hybrid electric vehicles (plug-in hybrid electric vehicles). Existing electric vehicles mainly reflect the remaining cruising range and remaining power (SOC, State Of Charge) displayed by the instrument on the car to reflect the cruising range and re...

AI Technical Summary

Problems solved by technology

[0004] However, the existing electric vehicles generally only give the cruising range and the maximum cruising range under working conditions, without considering the impact of the driving temperature, driving road section or the driving habits of the owner on the cruising range of the electric vehicle, resulting in the remaining mileage displayed by the electric vehicle. There is a big gap between the cruising range and the actual driving range of the car owner, so that the car owner cannot accurately judge the actual usage of the electric car owner

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