Electric automobile charging pile with charging heating system and control method thereof

Abstract

The invention designs an electric automobile charging pile with a charging heating system and a control method thereof. The electric automobile charging pile comprises a PTC heating system, a temperature monitoring system, a charging system and a controller, and aims at controlling a charging pile electric network to directly supply electricity to a vehicle-mounted PTC heater; an electric automobile power battery is heated; the self electric quantity of the power battery does not need to be consumed; no influence can be caused on the service life and the driving range. The PTC heating system is used for heating a power battery; the temperature monitoring system is used for monitoring the temperature of the power battery and the peripheral environment temperature of the electric automobile;the charging system is used for charging the power battery. When the average temperature of the power battery is lower than the preset lowest temperature, the PTC heating system performs heating on the power battery until the preset lowest temperature is reached; then, the charging system performs normal power battery charging. The electric network voltage of the charging pile is stable; the low-temperature heating temperature can be shortened; the normal charging and fast charging requirements of the power battery in the low-temperature environment are ensured.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to an electric vehicle charging pile with a charging heating system and a control method thereof. Background technique [0002] Electric vehicles, as a green vehicle with broad development prospects, are popularized at an extremely rapid rate. One of the key factors affecting the development of electric vehicles is the power battery. At present, most electric vehicles use lithium-ion batteries as their power supply devices, which are limited by the low-temperature charging performance of lithium-ion batteries, and there are problems such as low-temperature battery charging efficiency. If it is charged in a low temperature environment for a long time, it will also cause permanent capacity loss to the battery, reduce the service life of the battery, and bring safety hazards to electric vehicles. The charging effect is even worse in a sub-zero environment, and the no...

AI Technical Summary

Problems solved by technology

However, no matter which method is used, the part of the power reserved by the power battery is used for low-temperature heating. The warm-up time is longer, and it will prolong the charging time. The reserved power will also affect the mileage.

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