Manufacturing method of electric vehicle AC charging device considering maintenance service

Abstract

The invention relates to an electric vehicle alternating-current charging device manufacturing method with the maintenance service considered. The method overcomes the defects in the prior art. According to the technical scheme, the method includes the steps that firstly, a design structure matrix model of an alternating-current charging device is established according to analysis of the part structural relationship of the alternating-current charging device of an electric vehicle, the alternating-current charging device is initially divided with the graph theory method, and corresponding modular initial schemes are obtained; secondly, after the initial schemes are obtained through analysis in the first step, a mathematic model with the maintenance cost and maintenance cycle difference degree as the objective is established according to historical maintenance data of the alternating-current charging device of the electric vehicle, the mathematic model is calculated with the constrained optimization algorithm, and an optimal solution is obtained to form a combined scheme set with maintenance performance and modular performance considered; thirdly, the multi-attribute decision-making algorithm is adopted for the obtained optimal scheme set, and an optimal combined scheme is obtained; fourthly, the alternating-current charging device of the electric vehicle is manufactured according to the optimal combined scheme.

Description

technical field [0001] The invention relates to a design method of an electric vehicle AC charging device, in particular to a manufacturing method of an electric vehicle AC charging device considering maintenance services. Background technique [0002] The automobile industry is an important pillar industry of the national economy. As all walks of life in society strive to seek renewable new energy as raw materials for production to achieve the goal of energy conservation and emission reduction, electric vehicles have the ability to connect to the grid for power supply, which has attracted widespread attention from governments around the world. In the United States, the Department of Energy has led the implementation of the EV Project to promote the use of electric vehicles by building home charging piles for electric vehicle users free of charge. China In January 2009, the Ministry of Finance and the Ministry of Science and Technology issued the "Notice on Carrying out the...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the lack of corresponding basis for the manufacture of the above-mentioned prior art, often only meet the modular design in the process of modular design of the AC charging device, lack of evaluation and optimization of the scheme, it is difficult to obtain the AC charging device module with the best maintenance performance Based on the problem of optimized design scheme, a manufacturing method of electric vehicle AC charging device considering maintenance service is provided

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