New energy vehicle large-power charging cooling system and monitoring method thereof

Abstract

The invention discloses a new energy vehicle large-power charging cooling system and a monitoring method thereof. The new energy vehicle large-power charging cooling system cools charging contact points through a pipeline connected to a charging gun, the temperature of the contact points, the temperature of cooling liquid in a water tank, and the environment temperature are obtained through different temperature sensors correspondingly, all the temperature sensors are connected with a cooling system controller, a charging controller adjusts the rotating speed of a water pump and a cooling fan according to the comparison result of the temperature of all the points and temperature threshold values of the points; and the detected pressure and flow in the pipeline and a detected liquid level signal of the water tank are transmitted to the cooling system controller, and the operating situation of the cooling liquid is judged according to the comparison result of the threshold values of the points, so that an operation failure is alarmed.

Description

technical field [0001] The invention relates to the field of high-power charging of electric vehicles, in particular to a high-power charging cooling system for new energy vehicles and a monitoring method thereof. Background technique [0002] With the continuous development of the new energy vehicle industry, the battery capacity of electric vehicles has increased, and the cruising range has gradually increased; therefore, the contradiction between battery capacity and charging speed has arisen. In order to achieve fast charging, in addition to directly replacing the battery, increasing the charging power is the most effective solution. Under the charging current of hundreds of amps, the heating problem of the contact point will affect the charging safety; and the charging pile will limit the charging current, which will affect the charging efficiency. [0003] In the case of high-power charging of new energy vehicles, the existing cooling system cannot realize independent...

AI Technical Summary

Problems solved by technology

Under the charging current of hundreds of amps, the heating problem of the contact point will affect the charging safety; and the charging pile will limit the charging current, which will affect the charging efficiency

[0003] In the case of high-power charging of new energy vehicles, the existing cooling system cannot realize independent temperature regulation. When the temperature rises, the charging pile will reduce the charging current, which will cause a drop in charging efficiency and affect user experience.

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