The Society of Automotive Engineers (SAE) recently announced the revised version of the J1772 electric vehicle (EV) connector, which is said to reduce the charging time of electric vehicles to 10 minutes.
The J1772 connector specification has been around for a decade or so. It initially defined AC Level 1 and AC Level 2 charging levels, and specified a conductive charge coupler specification and AC Level 1 / AC. Level 2 electrical interfaces. In the revised specification announced in mid-October, the DC charging standard was added, defining two levels of charging, DC Level 1 and DC Level 2, and the corresponding charging coupler and electrical interface.
SAE pointed out that the new revised specification added the DC charging function, which means that the charging time of electric vehicles in the future may be shortened to 10 to 20 minutes; this standard is jointly determined with the European automotive industry experts.
Revised J1772 specification added DC Level 1 charging level, support 200~500V DC, maximum voltage current 40kW (80A), estimated charging time (in 20kW external charger), plug-in hybrid vehicle (plug- The hybrid (PHEV) is 22 minutes, and the battery-powered electric vehicle is 1.2 hours. DC Level 2 supports 200~500V DC, maximum voltage current 100 kW (200A), estimated charging time (in case of an external charger of 45kW), PHEV of 10 minutes, and battery type full electric vehicle of 20 minutes.
Please refer to this link for the complete revision of the J1772 specification. “We can now use this specification to provide users with different charging technology choices in a single modular design,†said Gery Kissel, Chair of the SAE J1772 Working Group and GM Engineering Expert.
(Edit / Li Yanjiao)
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