1. Limited Slip Differentials
Presented by: Jacky Lau
Block: 8M-I

2. Limited Slip Differentials (LSD), presented by Jacky Lau
Objective:
investigate the use, way of function, and design of LSDs
understand LSDs’ role in the performance of modern cars
Limited Slip Differentials (LSD), presented by Jacky Lau

3. Limited Slip Differentials (LSD), presented by Jacky Lau
Wheel speeds in a car
car wheels spin at different speeds
especially in turns
speed = distance / time
Limited Slip Differentials (LSD), presented by Jacky Lau

4. What does a differential do?
to aim the engine power at the wheels
to act as the final gear reduction in the vehicle, slowing the rotational speed
to transmit the power to the wheels while allowing them to rotate at different speeds
Limited Slip Differentials (LSD), presented by Jacky Lau

5. Without differentials, what will happen?
wheels would be locked together, forced to spin at the same speed
difficult to turn
tires and axle components will experience heavy stress
Limited Slip Differentials (LSD), presented by Jacky Lau

6. Differentials- definition and location
Definition: a device that splits the engine torque two ways, allowing each output to spin at a different speed.
Limited Slip Differentials (LSD), presented by Jacky Lau

7. The LSDs (positraction)
clutch-type LSD, the viscous coupling, locking differential and Torsen differential
most common type : clutch
Limited Slip Differentials (LSD), presented by Jacky Lau

8. Limited Slip Differentials (LSD), presented by Jacky Lau
LSDs (continued)
viscous coupling – often used in AWD cars, linking the rear and front wheels
locking – serious off-road vehicles
Limited Slip Differentials (LSD), presented by Jacky Lau

9. References