Quick charge methods different depending on electric vehicles will be unified into one.
The Korean Agency for Technology and Standards announced on December 21 that the agency would announce the revision of the Korean Standard (KS) which recommends the use of "Combo 1" among three quick charge methods for electric cars on December 22.
The International Electro-technical Commission (IEC) specifies five fast charging methods. In Korea, three types of charging methods (Cha Demo, A.C. Phase 3 and Combo 1) are used depending on electric car makers.
Combo 1 is the standard adopted by the American Society of Automotive Engineers (SAE) in North America such as the United States and Canada. “Combo” means that both DC and AC are used at the same time, so you can charge electric vehicles slowly and rapidly at one electric outlet. Europe adopts the 'Combo 2' method. Combo 1 features a faster charging time than other methods and is advantageous in vehicle information communication.
According to a study by the Korean Society of Automotive Engineers, about 67% of the Korean electric vehicles utilized the Combo 1 method this year. The Korean Agency for Technology and Standards said that the agency made the decision after considering the accessibility of quick charging infrastructure and development situation among others in Korea.
The Korean Agency for Technology and Standards expects the unification of quick charge methods to give a boost to the production efficiency of automobile manufacturers while reducing charger manufacturing cost. In addition, the agency expects it to save charger operators maintenance cost and electric car users inconvenience.