Method, system, device and storage medium for estimating driving range of pure electric vehicles

Abstract

The invention provides a method, system and device for estimating the driving range of a pure electric vehicle and a storage medium. The method comprising: setting a detection period, and obtaining aresidual electric energy estimated value Dn of the pure electric vehicle in the current period; when the vehicle is in a running state, updating the cumulative mileage of the period as An, mileage value as Bn, cumulative battery energy consumption as Cn, mileage power consumption ratio as En, driving range initial value as Gn, mileage change estimated value as Hn, mileage change actual value as In, and correction factor as Delta n; judging whether Hn is greater than or equal to In, and if so, obtaining the driving range final value as Jn=Gn-[Delta n*(Hn-In)]; and if not, obtaining the drivingrange final value as Jn=Gn+[Delta n*(In-Hn)]. The method, system and device for estimating the driving range of the pure electric vehicle and the storage medium can not only improve the accuracy of the driving range, but also do not need any powerful computing hardware, and the system complexity is not increased. The method is easy to implement at the current stage.

Description

technical field [0001] The invention relates to the field of electric vehicle control, in particular to a method, system, device and storage medium for estimating the mileage of a pure electric vehicle. Background technique [0002] The research and development of new energy vehicles has become more and more important in the automotive field. Many automakers claim that electric vehicles will lead the automotive industry into the "zero-emission era". However, there are still many factors restricting the development of electric vehicles, especially pure electric vehicles, which are very important in new energy vehicles. The biggest obstacle is the limited range of batteries, which is the so-called "range anxiety". In this case, it is even more important to be able to estimate the driving range more accurately. Otherwise, there will be a big difference between the estimated mileage and the actual distance that can be driven, which will cause drivers and passengers to worry tha...

AI Technical Summary

Problems solved by technology

However, it is necessary to collect vehicle driving information and map big data, which greatly increases the complexity of the system. At the same time, it also requires the vehicle controller to have strong computing power. It is a forward-looking method, and it is difficult to implement in mass-produced vehicles at the current stage.

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