This presentation discusses limited slip differentials. It begins by explaining the need for limited slip differentials and how they transfer more torque to the non-slipping wheel when one powered tire slips. It then discusses the basics of how a limited slip differential works, explaining that it prevents excessive power from being allocated to the slipping wheel. The presentation goes on to describe the different principles and mechanisms by which limited slip differentials operate and distribute torque between the wheels, such as viscous couplings or clutch packs. It also outlines several common types of limited slip differentials, such as viscous, helical, torque-sensitive, and clutch-type differentials.

1. LIMIT SLIP
DIFFERENNTIAL
Presented by:
Rohit Dharap – (1115090)
Sanket Kulkarni – (1115098)

2. NEED FOR
LIMITED SLIP DIFFERENTIAL
[Author, Presentation name]2
 Limited slip differentials use various mechanisms
to allow normal differential action during turns,
while also solving the problem of slippage.
 When one powered tire slips, the LSD transfers
more torque to the non-slipping wheel.
 It provides better traction .

3. Basics
of limit switch differential
 The main advantage of a limited-slip differential is demonstrated by
considering the case of an open differential in off-roading or snow situations
where one wheel begins to slip or lose contact with the ground.
 . In such a case with a standard differential, the slipping or non-contacting
wheel will receive the majority of the power, while the contacting wheel will
remain stationary with the ground.
 The torque transmitted will be equal at both wheels, and therefore, will not
exceed the threshold of torque needed to move the wheel with traction.
 In this situation, a limited-slip differential prevents excessive power from
being allocated to one wheel, and thereby keeping both wheels in powered
rotation.

4. PRINCIPLE
OF
OPERATION
[Author, Presentation name]4
 LSD mechanism applies a torque (internal to the differential) that resists
the relative motion of the output shafts.
 In simple terms, this means they have some mechanism which resists
a speed difference between the outputs, by creating a resisting torque
between either the two outputs, or the outputs and the differential
housing. There are many mechanisms used to create this resisting
torque.
 Example-viscous and clutch-based LSDs.
 The amount of limiting torque provided by these mechanisms varies by
design

5. CONTD…….
5
The torque delivered to the outputs is:
 Trq 1 = ½ Trq in + ½ Trq d for the slower output
 Trq 2 = ½ Trq in – ½ Trq d for the faster output
 When traveling in a straight line, where one wheel starts to slip (and spin faster than the
wheel with traction), torque is reduced to the slipping wheel (Trq 2 ) and provided to the
slower wheel (Trq 1 ).
 In the case when the vehicle is turning and neither wheel is slipping, the inside wheel will
be turning slower than the outside wheel. In this case the inside wheel will receive more
torque than the outside wheel, which can result in understeer .
 When both wheels are spinning at the same speed, the torque distribution to each wheel
is:
Trq (1 or 2) = ½ Trq in ±(½ Trq d ) while
Trq 1 +Trq 2 =Trq in .
This means the maximum torque to either wheel is statically indeterminate but is in the range
of ½ Trq in ±( ½ Trq d ).
Where Trq d=d =Difference in torque between right and left wheel
Trq1=slower wheel torque

6. TYPES
OF LIMIT DIFFERENTIALS
[Author, Presentation name]6
1. VISCOUS TYPE
2. HELICAL TYPE
3. TORQUE SENSITIVE TYPE
4. CLUTCH TYPE
5. 2-WAY,1-WAY,1.5 WAY
6. ELECTRONIC

7. [Author, Presentation name]7
CLUTCH TYPE LIMIT SWITCH DIFFERENTIAL

8. [Author, Presentation name]8

9. [Author, Presentation name]9
TORQUE SENSITIVE LIMIT SWITCH
DIFFERENTIAL

10. [Author, Presentation name]10

11. [Author, Presentation name]11
Thank You