Charging method and system of electric vehicles

Abstract

The invention discloses a charging method and system of electric vehicles. The method comprises the steps as follows: acquiring charged vehicle position data in the same time period; clustering the vehicle position data in the same time period with a density-based clustering algorithm to obtain position information of all charging stations; acquiring the maximum value of the number of simultaneously charged vehicles corresponding to each charging station, and determining the number of charging piles of the charging stations; acquiring the number of electric vehicles which are being charging atthe current moment in each charging station, the number of idle charging piles in each charging station and residual electricity quantity of each vehicle at the current moment; acquiring position information of a to-be-charged vehicle at the current moment; determining the position of the best charging station; sending the position of the best charging station to a user terminal so that the usercan select whether to charge the to-be-charged vehicle or not. By the adoption of the charging method and system, waiting time of drivers can be shortened and the utilization rate of the charging piles can be increased.

Description

technical field [0001] The invention relates to the field of electric vehicle charging, in particular to an electric vehicle charging method and system. Background technique [0002] With the development of society and the advancement of technology, the number of automobiles in my country has increased year by year. While automobiles bring convenience to people, they have also caused many problems, such as: oil energy shortage, automobile exhaust pollution, etc. Due to the advantages of low energy consumption, no pollution, and low noise, electric vehicles have become an industry vigorously developed by the country. In recent years, due to the implementation of the state's subsidy policy for electric vehicles, more and more people choose to buy electric vehicles as a means of travel, resulting in a rapid increase in the number of electric vehicles. Inadequate charging stations and other issues make it difficult to charge electric vehicles, which leads to "range anxiety" for...

AI Technical Summary

Problems solved by technology

In recent years, due to the implementation of the state's subsidy policy for electric vehicles, more and more people choose to buy electric vehicles as a means of travel, resulting in a rapid increase in the number of electric vehicles. Inadequate charging stations and other issues lead to difficulties in charging electric vehicles, which leads to "range anxiety" of drivers

[0003] The existing charging system mainly adopts the method of mobile phone APP. Drivers can query the information of nearby charging stations (location and charging pile usage) through the mobile phone APP, and select the appropriate charging station through subjective judgment, but it is limited by mobile phones and APP service, so there are many shortcomings

(1) At present, charging pile manufacturers mostly use different APPs. When electric vehicle drivers want to find charging stations through APPs, they can only search through the existing APPs on their mobile phones, which cannot integrate the information of all APPs well, so they cannot get Satisfying result

(2) The immediacy of the charging pile information on the APP is not high, and there are cases of false alarms, which can easily induce drivers to make wrong judgments. For example, if the charging vehicle has completed charging but has not left, the APP will display that the charging pile is not in use. The operator cannot charge immediately after arriving at the charging station, which greatly wastes time

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