Limited Slip Differentials

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Presentation transcript:

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

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

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 http://isobe.typepad.com/photos/uncategorized/041213_wheel_tracking.jpg Limited Slip Differentials (LSD), presented by Jacky Lau

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

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

Differentials- definition and location Definition: a device that splits the engine torque two ways, allowing each output to spin at a different speed. http://auto.howstuffworks.com/differential2.htm Limited Slip Differentials (LSD), presented by Jacky Lau

The LSDs (positraction) clutch-type LSD, the viscous coupling, locking differential and Torsen differential most common type : clutch http://www.club4ag.com/faq%20and%20tech_pages/limited_slips_differential_101.htm http://auto.howstuffworks.com/differential8.htm Limited Slip Differentials (LSD), presented by Jacky Lau

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 http://auto.howstuffworks.com/differential10.htm Limited Slip Differentials (LSD), presented by Jacky Lau

References http://www.club4ag.com/faq%20and%20tech_pages/limited_slips_differential_101.htm http://auto.howstuffworks.com/differential10.htm http://www.houseofthud.com/differentials.htm http://truckworld.tenmagazines.com/How-To-Tech/Lockers-Differentials/4x4Lockers-Diffs.html http://isobe.typepad.com/robotics/