Charging method and device for electric vehicle

Abstract

The invention discloses a charging method and device for an electric car. The charging method includes: detecting the remaining capacity of an electric car, and determining charging pile distributioninformation according to an environment map; determining if the electric car meets a preset charging condition or not according to the remaining capacity and the charging pile distribution information; calculating predicted power consumption when the electric car drives to each charging pile according to the environment map and the preset energy consumption model; determining a target charging pile according to the predicted power consumption and the retaining capacity, navigating the electric car to the target charging pile to be charged. The technical scheme provides an integral charging service for a user, user operation can be avoided in a charging process, and the intelligent level and the reliability can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a charging method and device for electric automobiles. Background technique [0002] With the increasing awareness of environmental protection, electric vehicles have gradually occupied a place in the automobile market due to their advantages of zero emission and no pollution. However, due to the limited battery capacity of electric vehicles, the cruising range of electric vehicles is short, and the number of charging piles is relatively scarce. As a result, the phenomenon that electric vehicles are trapped due to the exhaustion of power frequently occurs. [0003] In order to solve the above problems, some applications that can automatically navigate to nearby charging piles have appeared in the prior art. However, the inventor found in the process of implementing the present invention that the charging pile navigation application in the prior art has at least the following...

AI Technical Summary

Problems solved by technology

However, the inventor found in the process of implementing the present invention that the charging pile navigation application in the prior art has at least the following defects: First, the charging pile navigation application can only be started after receiving an instruction to find a charging pile actively triggered by the user. Query nearby charging piles. Once the user ignores the power consumption due to focusing on driving, the electric vehicle will be trapped on the way due to failure to charge in time.

Secondly, the charging pile navigation application simply recommends a closer charging pile to the user based on the distance between the charging pile and the electric vehicle. May have run out of battery before

[0004] It can be seen that the charging pile navigation application in the prior art can neither actively remind the user to charge before the battery of the electric vehicle is exhausted, nor can it guarantee that the battery of the electric vehicle is enough to reach the target charging pile, which brings a lot of inconvenience to the user.

Images