A drive axle assembly includes first and second axleshafts connected to a pair
of wheels and a drive mechanism operable to selectively couple a driven input shaft
to one or both of the axleshafts. The drive mechanism includes a differential assembly,
a planetary gear assembly operably disposed between the differential assembly and
the first axleshafts and first and second mode clutches. The first mode clutch
is operable with the planetary gear assembly to increase the rotary speed of the
first axleshaft which, in turn, causes a corresponding decrease in the rotary speed
of the second axleshaft. The second mode clutch is operable with the planetary
gear assembly to decrease the rotary speed of the first axleshaft so as to cause
an increase in the rotary speed of the second axleshaft. A control system controls
actuation of both mode clutches.