Modulating limited slip differential.

摘要

A modulating limited slip differential is disclosed of the type including a gear case (11; 111; 211) an actuating mechanism (51; 151; 251) being operable to apply a force to a clutch pack (41; 141; 241) to retard rotation between a side gear (25; 125; 225) and the gear case. The actuating mechanism includes an outer actuating plate (55; 155; 255) which normally rotates at the same speed as the gear case. The differential includes an electromagnetic actuator (81; 181; 281) which is operable to cause rotation of the outer actuating plate relative to the gear case resulting in ramping of a plurality of cam balls (79; 179; 279) and axial movement of an inner actuating plate (53; 153; 253) to load the clutch pack.