Vehicle remaining mileage determining method and device and vehicle

Abstract

The embodiment of the invention discloses a vehicle remaining mileage determining method and device and vehicle. The method comprises the steps of obtaining the pre-stored traffic flow average speed corresponding to all subsection road conditions, the average acceleration of the vehicle at the current collection moment, the current environment temperature and the consumed power of accessories; determining a current power consumption value of each subsection road condition according to the traffic flow average speed, the average acceleration and the current environment temperature correspondingto each subsection road condition; according to the consumed power and the average speed of each traffic flow, determining the total power consumption of accessories of each subsection road condition; and determining the remaining mileage according to the accessory total power consumption and the current power consumption value of each subsection road condition. The problem that the actual remaining driving range of the vehicle cannot be accurately predicted in the vehicle driving process is solved, and the method is simple and easy to implement; the problem of low accuracy caused by predicting the remaining mileage through historical power consumption information under the condition that the driving working condition changes greatly is avoided, and the accuracy of remaining mileage prediction is improved.

Description

technical field [0001] Embodiments of the present invention relate to new energy vehicle technology, and in particular to a method, device and vehicle for determining the remaining mileage of a vehicle. Background technique [0002] At present, pure electric vehicles are developing rapidly. However, due to the influence of driving conditions and weather conditions, the mileage of pure electric vehicles varies greatly, which brings great troubles to users. It is better to accurately inform the driver of the remaining mileage of the vehicle. Therefore, the estimation technology of the remaining mileage of pure electric vehicles has become a key point in the development of pure electric vehicles. [0003] At present, the existing method of estimating the remaining mileage of a vehicle is usually to establish multiple parameter estimation models to predict the remaining mileage of the vehicle based on the historical information of vehicle driving, but the implementation process ...

AI Technical Summary

Problems solved by technology

[0002] At present, pure electric vehicles are developing rapidly. However, due to the influence of driving conditions and weather conditions, the mileage of pure electric vehicles varies greatly, which brings great troubles to users. It is better to accurately inform the driver of the remaining mileage of the vehicle. Therefore, the estimation technology of the remaining mileage of pure electric vehicles has become a key point in the development of pure electric vehicles.

[0003] At present, the existing methods of estimating the remaining mileage of a vehicle usually use the historical information of the vehicle to establish multiple parameter estimation models to predict the remaining mileage of the vehicle, but the process of establishing multiple models is complicated and the calculation process is also relatively complicated , the amount of calculation is large, it is difficult to implement and verify on the actual vehicle

Or calculate the power consumption and driving mileage based on the historical information of the vehicle, but when the driving conditions of the vehicle change greatly, the error of the calculated mileage is large

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