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Abstract: This paper aims to make the presentation of steps in order to achieve a 3D model of Torsen differential T1 and the presentation of the necessary stages for the functioning gears with the help of the Autodesk Inventor 2015 application to better understand the functioning of this type of differential.
Key words: Autodesk Inventor, simulation, Torsen differential, gears
INTRODUCTION
The role of the differential is to enable the motor driving the wheels arranged on the same axle, with different angular speeds, if the vehicle is traveling in curves, the wheels inside and those outside of the turn having passed through different paths. Structurally, it comprises a planetary gear system, enabling different speed motors driving the wheels [1].
2.PRESENTATION OF THE DIFFERENTIAL TORSEN
Torsen is a term that derives from the phrase "torque sensitive" (which "feels" torque, torque-sensitive) expression that describes the operation of the system itself. This is part of limited slip differentials category - L.S.D. (Limited Slip Differential).
The quality and the performance of the differential is to react immediately to any torque imbalance emerged between the two wheels, directing the torque to the wheel with high adherence.
These types of LSD sites have so called "multiplier report" of the torque, generally with values of 1:4 or 1:5. This means, if a torque of 30 Nm is directed to the wheel with least grip, the LSD will instantly direct a torque of approximately 120 Nm or 150 Nm at the wheel with better grip, i.e. 4 or 5 times higher than the minimum torque on the low adhesion wheel [2].
For sports cars, limited slip differential is spectacular on roads with corners successions, because it allows accelerating much earlier and more intense. Enthusiast drivers claim that after the fitting of LSD they felt like they were sitting at the steering wheel of a four-wheel drive vehicle [4].
The Torsen differential is a real mechanical gem, being constituted of three groups of gears formed from helical pinions and pinions with straight teeth. At the Torsen differential, the two driven wheels are connected by helical transmission. They limit high differential speeds, ensuring the necessary equilibrium at completing the corners [5].
3.THE TORSEN DIFFERENTIAL MODELING
The differential shaping started off with the Figure 1, there...