PLC/HomePlug Green Phy for eMobility
Communication according to ISO/IEC 15118 / DIN 70121 / SAE J2847/2 is based on HomePlug Green Phy or IEEE1901 standard. Thereby the Power Line Signal is modulated onto the Control Pilot Wire (CP) in the charging cable against protective earth.
Because of the fact that the electro vehicle charging cables are short compared with cables in PLC applications in the home over mains / 230V it is required to reduce the transmit power level of the PLC signal. This reduction in transmit power level is achieved by using a 1:1:1 signal transformer compared with the 1:5:4 that is typically used in mains applications. In addition transmit power level is further reduced by modifying the configuration file of the Green Phy Chips.
As PLC nodes in charging stations are requested to have a different behaviour than the ones in the electro vehicles more modifications of the so called PIB-File (Parameter Information Block File) are required.
In the area of ISO/IEC 15118 / DIN 70121 / SAE J2847/2 communication CODICO offers both HomePlug Green Phy compliant ICs from Qualcomm - the QCA7000 and QCA7005 and support Embedded Designs with these Chips under certain circumstances.
Beside the chips CODICO offers a a number of modules and evaluation boards based on these Chips where all the above mentioned modifactions and adaptions are already made.