Author : Ajinkya Shirsath, Nehankit Nannaware, Shekhar Kale, Suchit Chhajed and Shrikant Nimbalkar

A conventional differential mechanism (unlocked) always supplies close to equal torque to each side. With an automotive differential if one wheel is held stationary the counterpart wheel turns at twice its normal speed. A Semi-automatic differential lock system introduced here can be engaged or disengaged manually as per conditions by stalling of one wheel to lock the differential by sliding a dog ring to get engaged in planetary gear spike shaft so that both the wheels have the same traction. If the difference in the speed of driven and rolling wheels is encountered then the differential is controlled to lock.

Keywords: A semi-automatic differential lock system, dog ring, spike shaft, same traction.