Charging socket protection apparatus for electric vehicle and control method for charging socket protection apparatus

Abstract

The invention provides a charging socket protection apparatus for an electric vehicle and a control method for the charging socket protection apparatus. The protection apparatus comprises a temperature sensor, a temperature control module, a vehicle control module, a high-voltage battery control module and an emergency power-off module, wherein the temperature sensor is used for performing temperature collection on multiple distribution points on a charging socket in vehicle charging; the temperature control module is used for performing preprocessing on the multiple collected distribution point temperature signals, and sending the temperature signals to the vehicle control module; the vehicle control module is used for performing further processing on the temperature signals sent from the temperature control module, obtaining a highest temperature value and a highest temperature rising value of each distribution point, and giving out a power-limiting charging instruction, a charging stop instruction or an emergency power-off instruction according to comparison results between the highest temperature values and the highest temperature rising values and respective threshold values; and the high-voltage battery control module and the emergency power-off module are used for reducing a charging current or disconnecting a high-voltage relay respectively according to the instructions from the vehicle control module. By adoption of the charging socket protection apparatus and the control method therefor, charging can be stopped effectively in time to protect vehicle and equipment so as to further lower risk and protect personal safety.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a protection device for a charging socket of an electric vehicle. Background technique [0002] With the increasingly serious problems of environmental degradation, greenhouse effect and energy depletion, people are paying more and more attention to the development of new energy. Cars are indispensable for people's daily transportation and travel. Under this background, electric vehicles are more and more concerned and accepted by people. [0003] A distinctive feature of electric vehicles: they need to be charged. At present, there are many charging methods for electric vehicles, and common methods include: connecting the car to a charging pile through a charging cable and charging the car through a charging cable connected to a household socket. Due to the use of connectors to connect with car charging sockets, the following problems generally exist: [0004] Imp...

AI Technical Summary

Problems solved by technology

[0007] The above problems will cause the temperature between the charging plug and the socket to rise or even overheat when the electric vehicle is charging, which will cause the following safety risks:

[0008] Instantaneous or local overheating melts the insulation skin, causing the positive and negative poles of the charging line to be short-circuited, resulting in a short-circuit risk, resulting in fire and burn accidents;

[0009] If the temperature is too high, the plug at the interface will stick and cannot be pulled out, thus damaging the device

Images