Interpretation of SAE J1772 standard provided by cable manufacturer

China [CN]

Introduction: SAE J1772 is a conductive charging interface standard for electric vehicles and plug-in hybrid electric vehicles (PHEVs), developed and published by the Society of Automotive Engineers (SAE). The following is a detailed explanation of the SAE J1772 standard:

Standard Overview: Official Name: SAE J1772 is also commonly referred to as "Recommended Practice for Ground Vehicles J1772 - Electric Vehicle Conductive Charging Coupler".

Scope of Application: This standard is mainly used to define the conductive charging interface between electric vehicles and charging piles, including requirements for physical dimensions, electrical characteristics, communication protocols, etc.

Importance: SAE J1772 has been widely used in North America and has become one of the main standards for electric vehicle charging interfaces.

Technical Features: Interface Design: The charging interface of the SAE J1772 standard includes multiple high-voltage terminals and low-voltage communication terminals. Among them, the high-voltage terminal is used to transmit alternating current (including live wire, neutral wire and ground wire), while the low-voltage communication terminal is used to transmit information such as pilot signals and proximity indication circuits.

Combo charging socket: To meet the needs of DC charging, the SAE J1772 standard also provides a Combo charging socket. This socket can support both AC and DC charging, and has the advantages of low cost, fast, convenient, reliable, small size and high bandwidth.

Charging power: According to the revised J1772-2012 standard, the charging current of DC charging can reach 80A (level 1 DC charging) or 200A (level 2 DC charging), which meets the needs of fast charging of electric vehicles.

Application: Regional distribution: The SAE J1772 standard has been widely used in North America, and almost all level 2 and level 3 charging plugs used in the region have adopted this standard. At the same time, the standard has also been accepted and adopted by some European and Asian countries.

Model support: Many well-known electric vehicles and plug-in hybrid vehicles support the charging interface of the SAE J1772 standard, such as the Chevrolet Spark Electric Edition, Volkswagen Golf Land Rover, etc.

In summary: SAE J1772 is one of the important standards for charging interfaces of electric vehicles and plug-in hybrid vehicles. It defines the requirements for the physical dimensions, electrical characteristics and communication protocols of the charging interface. This standard has been widely used in North America and has gradually been accepted and adopted by other countries and regions. With the continuous development of electric vehicle technology, SAE J1772 is also constantly being improved and updated to meet new charging needs and market demands. Please visit: https://www.omgevcable.com