The green energy policies have driven the transformation of transportation and the rise of the electric vehicle (EV) market, which in turn affected the research and development of charging station products and the deployment of charging stations. Charging stations, regardless of DC fast charging, AC slow charging, have been mushrooming. 

However, as EVs and charging stations are surrounded by electricity, and their safety and functionality must be rigorously tested to ensure safety. Each car adopts different charging specifications such as CCS1, CCS2 and different communication protocols DIN, ISO, as speaking different languages. In order to ensure the smooth charging between different charging piles and various brands of vehicles, the Bureau of Standards, Metrology and Inspection, Ministry of Economic Affairs formulated the "CNS15511 Electric Vehicle Conductive Charging System" related standards to ensure that quality and safety meet the basic requirements.

Traditional testing is faced with some obstacles for EV charging. Owing to the product characteristics of electric vehicles and charging stations, the following problems may still be encountered in addition to issues such as being time-consuming and inconsistent test precision:

1. Wide output power range
2. Multilingual communication protocols
3. Dynamically evolving global regulations

Delta's automatic test system has an inbuilt Delta Smart 1 test software platform and uses the depot-approved Vector VT system to program communication protocol test itemsNote 1. 

Simulating real-life charging scenarios, the handshaking ability between EVs and charging stations are assessed, and the compatibility and interoperability between the two are accurately tested. Delta's test system supports the communication protocol test for mainstream American, European and Japanese EVs and low-power AC charging stations to the maximum 360kw DC charging stations, accurately assessing charging tests regardless of vehicles or charging stations.

Note 1：Including ISO 15118-1, ISO 15118-2, ISO 15118-3, ISO 15118-4, ISO 15118-5, DIN 70121 / 70122, CHAdeMO 0.9, CHAdeMO 1.2, CHAdeMO 2.0 and GB/T 34658 communication protocols.

Delta's automated test system simulates the behavior of the charging station and communicates with the electric vehicle to be test to verify that the charging process is running smoothly.