Revision to unify electric vehicle rapid charging methods

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Revision to unify electric vehicle rapid charging methods

Published2017.12.28 14:57

Compatible with Combo 1 and Slow Type 1 modes and has a fast charging time

The rapid charging method for electric vehicles will be standardized as ‘Combo 1’.

The international standard (IEC) stipulates five types of rapid charging methods: Combo 1, Combo 2, Chademo, GB/T, and AC3-phase. In Korea, electric vehicle manufacturers use Chademo, AC3-phase, and Combo 1 interchangeably.

The National Institute of Standards and Technology conducted a commissioned study and consultation with stakeholders including domestic and foreign electric vehicle manufacturers, charger manufacturers, and charging service providers, and decided to unify the domestic standard to 'Combo 1' through deliberation by the Industrial Standards Deliberation Committee.

Domestic electric vehicle charging port and rapid charger connector

Combo 1 is a method adopted as a standard by the Society of Automotive Engineers (SAE) in North America, including the United States and Canada, and is compatible with the slow Type 1 method, and the charging time is AC. It is faster than the 3-phase method and has advantages over the CHAdeMO method for vehicle information communication.

In addition, according to the research results of the Society of Automotive Engineers of Korea, approximately 67% of the electric vehicle distribution rate in Korea in 2017 was the Combo 1 method, and the accessibility of domestic rapid charging infrastructure and the current development from 50kWh to 400kWh were also taken into consideration.

Charging method by vehicle

By unifying the rapid charging method for electric vehicles through this revision of the Korean Industrial Standards (KS), it is expected that ① automobile manufacturers will improve production efficiency by producing electric vehicles with unified charging ports, ② charger manufacturers will reduce manufacturing costs, ③ charger operators will reduce maintenance costs, ④ electric vehicle users will experience relief from inconvenience, ⑤ charger use will be improved in safety, and ⑥ the government will contribute to the activation of charging infrastructure.

However, the National Institute of Standards and Technology plans to guide rapid charger distribution agencies to maintain multi-type chargers for a considerable period of time so as not to cause inconvenience to users of existing electric vehicles that use different methods than "Combo 1."

#전기차 #HDD

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