Test device for charging control process of DC (direct current) battery charger of electric automobile and implementation method of device

Abstract

The invention relates to a test device for a charging control process of a DC battery charger of an electric automobile and an implementation method of the device. The test device comprises an acquisition unit, a control guide circuit, a control unit, a battery management analog unit, a process state analog unit and a man-machine interaction unit, wherein the acquisition unit is used for acquiring output voltage / currents of a plug of the DC battery charger, a control guide signal, a communication signal and an auxiliary power supply value and transmitting data to the man-machine interaction unit in real-time; the control guide circuit is used for realizing a control guide function of the electric automobile on the DC battery charger; and the control unit is used for controlling a charging state and a communication process and realizing switching of various states of the charging process. The test device tests the correctness and the reliability of a control process and time series changes in a charging stage according to requirements of an IEC 61851-23 appendix system B and a GB / T 20234.3-2011 system. The device and the method are closer to an actual working state of the DC battery charger, and test results can reflect the performance of the DC battery charger more comprehensively and accurately.

Description

technical field [0001] The invention relates to the field of process testing, in particular to an electric vehicle DC charger charging control process testing device and an implementation method thereof. [0002] Background technique [0003] Promoting the development of the new energy industry is a common strategic choice for countries around the world to deal with the increasingly severe energy and environmental crises. Electric vehicles use electricity instead of oil to achieve a "zero-emission" low-carbon life. It is an important means to solve the current contradiction between energy shortage and economic development. The application of electric vehicles provides a broad prospect for the use of clean energy in the field of transportation, reducing dependence on fossil energy and reducing carbon emissions. [0004] With the steady advancement of my country's electric vehicle charging and swapping infrastructure, it will provide a strong support for the development of e...

AI Technical Summary

Problems solved by technology

At present, there is no systematic solution for testing the charging control process at home and abroad. Usually, related tests are completed through the cooperation of oscilloscopes and high-precision digital meters. At the same time, due to environmental constraints, the test wiring is inconvenient and the test steps are complicated. Staff manually adjusts the control state, which will lead to low test stability and reliability, and unsmooth test process

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