Instead of the standard
bevel gears used in differential transmissions, the engineers developed a spur gear differential in which additional torque can be applied from outside via a superimposed planetary gearbox.
Not exact matches
The Molykote synthetic
gear oils are designed for
use in worm, helical, spur,
bevel, hypoid and rack & pinion applications.
[1] BorgWarner's original design called for
using both a software controlled electromagnetic multi-disc (also called multi-plate) clutch pack and a planetary or
bevel geared center differential together.
[1] Instead of a planetary or
bevel geared center differential, the system
uses a variable intelligent locking center multi-disc differential.
Unlike the process
used by the existing Torsen torque sensing quattro system, the only rear - wheel drive components engaged when running in front wheel drive are the
bevel gears within the axle and
gears within the differential — the latter of which compensate for differences in the speed of rotation of the wheels during cornering.