Browse Publications Technical Papers 2013-01-1188
2013-04-08

Development and Implementation of SAE DC Charging Digital Communication for Plug-in Electric Vehicle DC Charging 2013-01-1188

This paper outlines the development and progress of implementing the SAE J2931, J2847/2 and J1772 communication standards to accomplish off-board DC charging. Communication between the off-board DC Electric Vehicle Supply Equipment (EVSE) and Plug-in Electric Vehicle (PEV) occurs on the pilot wire of the SAE J1772 connector via HomePlug Green PHY power line communication (PLC). An Electric Vehicle Communication Controller (EVCC) was developed to interface with the PEV's Battery Energy Control Module (BECM). A Supply Equipment Communication Controller (SECC) was also developed to interface with the DC EVSE's Power Control Module (PCM). Firmware was developed to implement the SAE J2931/1 communication stack, which is harmonized with the ISO/IEC DIS 15118-2 and DIN 70121 standards for DC charging communication. The requirements needed to implement the SAE DC charging communication standards as well as the technical solutions utilized in this specific implementation are outlined in this paper. Data is presented showing full control of the off-board DC EVSE utilizing the SAE DC charging communication standards.

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