Deep Analysis of Electric Vehicle Charging Station: Problems of Failured Charging

Ⅰ. Why is the plug of electric vehicle charging pile so complex?

Ordinary plugs are divided into various types, like double-hole, three-hole, national standard, American standard, and European standard, not to mention such complex equipment as electric vehicle charging pile.

No matter how fast or slow the pile is, the electric vehicle charging plug of the charging pile is equipped with many electrode contacts. Generally speaking, only the largest ones in the middle transmit electric energy while the surrounding smaller ones are used to provide communication between the charging pile and the electric vehicle.

As mentioned above, ordinary plugs are also divided into different standards of different countries, and so are the electric vehicle charging plugs. At present, the charging plug standards of various countries are not unified. There are differences among national standards, European standards, American standards, Japanese standards, etc., among which the European standards appear later with sufficient function reservation and more contacts in appearance.

Ⅱ. EV charging plug must match the vehicle before charging

Charging an electric car is different from charging a mobile phone. Small electronic devices such as mobile phones can be charged as long as the interface is matched, but the charging pile of electric vehicles is very "proud" and has its own temper. It will complete the charging process only when it's matched with the right interface.

Electric vehicles have high voltage, high current, and large capacity. Its charging is a very complex process in control. A compatible protocol must be completed between the charging pile and vehicle before charging. Otherwise, improper charging control may lead to danger.

After the electric vehicle charging plug is inserted into the vehicle and the charging pile is started, a "communication" process shall be completed between the charging pile and the electric vehicle. The charging pile shall correctly connect the plug and the electric vehicle and carry out several tests such as leakage tests. At the same time, you should check the charging pile shall to see if various parameters of the vehicle battery can be obtained and check the correct communication with the battery or charger of the vehicle . Only in this way can the charging pile effectively and safely control the whole charging process of the vehicle.

When the charging pile can not correctly communicate with the electric vehicle, it will be incompatible that it can not charge the vehicle. However, the charging pile is well connected, and the charging pile also recognizes that the EV charging plug is inserted normally.

As a professional manufacturer of electric vehicle charging equipment, AG Electrical can provide you with different electric vehicle charging plugs, including the type 1 and the type 2 charging plug.