From what I gather, the DCCD uses the same AWD set, that is in the Euro auto. The same compound epicyclic gear set, and clutch. As there is no hydraulics, the clutch must be operated electrically.
Without the clutch operating, it would be like the auto, to have the rear wheels spin. I guess the clutch could be operated, in line with the throttle and rpm. The more throttle, and the lower the rpm, the more clutch is applied. A controller that worked on these lines would be satisfactory.
Harvey.
