palmermd said:
I'm not so sure. Supposedly the Tesla engineers sat in on the development of the SAE DC standard. They did not like the time (it was taking to make decisions) nor the direction of the plug design, so they designed their own plug, but the protocols for supercharging are the same as SAE DC charging, so the adapter should be fairly simple for them as long as you have the supercharger hardware on board. This means only the 85kWh cars and the 60kWh cars that pay for the supercharger components. 40kWh cars are still out of luck on fast charging because they lack the communications card and the charger bypass relays.
Sorry, but you are wrong. The SAE combo uses separate pins for AC and DC, Tesla does not, so this is vastly different already. Since the digital communications for the SAE combo use PLC (Power Line Communications) over the separate AC pair from J1772, this cannot work as the PLC will not work over DC. Tesla uses a 5 pin connector, the big 2 are the AC/DC input, there's a Ground, a Proximity, and the last one is a data line which is also backward compatible with SAE J1772, but not Combo.
-Phil