Co-author of CanZE. Q210 nov 2013
- in DC mode two are +, two are -, one (center) is ground.
- In AC, 3 phases, 1 neutral, one (center) is ground.
- In AC mode the control pins are not the same. The CP carries a control signal defining a state using a voltage (through a voltage divider setup) and a maximum current (through pulse width modulation). The PP defines the cable strand wire (in Type 2), or the state of the manual locking handle (in Type 1).
- In CCS this entire control stuff has been replaced with a very weird home automation protocol. They really should have used CAN as was done in ChaDeMo, but that's all water under the bridge now.
- For supercharging, I don't know how the car communicates with the charger. I have come across it, but to be bluntly honest, I forgot the details.