jkirkebo said:
Most european car makers won't go with the SAE solution as that does not support 3-phase charging. Much easier to put one Mennekes and one CHAdeMO port on the cars.
You're confusing J1772 AC and DC charging. J1772 DC charging would work fine as a single phase AC charger and as a DC charger. In fact it would work exactly like a Leaf, which has a single phase AC charger and a DC charger (CHAdeMO), except you'd be getting the same performance from one plug rather than two.
Manufacturers don't want two plugs they want one. With the SAE J1772 they could have one plug for all cars sold in Europe, NA, and Japan. (Mennekes is probably dead and China is a different story altogether). Under your scenario they'll need at least three plugs and probably four -- J1772, Mennekes, CHAdeMo and J1772 DC, with a variety of different charging pairs -- J1772 and CHAdeMo for Japan, Mennekes and CHAdeMo for Europe, Mennekes and J1772 DC for Europe, J1772 and CHAdeMO for NA, or J1772 DC for NA.
That's just way too messy.