Kalud (another Canadian on the E90 forums) Provided some usefull info.
Including block diagrams for the communication etc.
it is all do-able, it is simply a matter of development time really.
Jeff can see exactly how he would control the Xdrive motor/current sensor etc.
The difficulty comes in the added functionality of the CANBUS communications.
That takes time, and a lot of logging and analysis. it could be done "half-assed" in no time, but to do it right would take some time. If anybody can do it its Jeff Reid and he's on the job.
Last edited by Desert-storm90; 12-03-2012 at 10:57 AM.