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According to https://en.wikipedia.org/wiki/SAE_J1772 https://en.wikipedia.org/wiki/SAE_J1772, HomePlug is used in Europe. The article is otherwise rather ambigu
by gwbas1c 2y ago
According to https://en.wikipedia.org/wiki/SAE_J1772 https://en.wikipedia.org/wiki/SAE_J1772, HomePlug is used in Europe. The article is otherwise rather ambiguous about how it's used in common chargers.
At least for the typical level 2 charger, the signaling is an analog square wave.
- devanl 2y agoThe typical level 2 charger doesn't have to use HomePlug, but most recent EVs will have a HomePlug modem in order to speak ISO15118 to negotiate the voltage during DC fast charging through the CCS1/2 connector. The pilot pin that carries the square wave used for J1772 is common to both AC and DC charging, so it's possible for a level 2 charger to incorporate a modem and communicate with the EV. In many situations it would be an unnecessary expense, but it may become more common even in level 2 chargers in the future since ISO15118 can be used to authenticate the car to the charger for plug-n-charge charging without needing a card or app to authorize the charge.