22-03-2011, 11:36 AM
Presented By:
Zishu Ndongko,
Yusuf Hussain
FINALBrakes.ppt (Size: 1.71 MB / Downloads: 214)
How the Brake System Works In a Car
Master Cylinder
Located in front of driver
Consists of a piston in a sealed bore
Mechanical force input, hydraulic
force output
Failure and Problems Encountered
Caliper
Located at each
wheel
Similar to Master
cylinder
Hydraulic input
force, mechanical
output force
Rotor and Brake Pads
Rotor
Located at each wheel
Iron with highly machined surface
Brake Pads and Brake Shoes
Rubs against rotor
Metal with high friction lining
The difference
Types of Brakes
Forces Generated by Brakes
The Brake Pedal
Caliper
Applying Brakes Forcefully
Forces
Equilibrium
Wheel Lock
Forces & Equilibrium
A car in constant motion has forces that are balancing one another (equilibrium)
Forceful application of brakes causes the forces to be out of balance
Consequences of Wheel Lock
Front Bias
Increased front rotor diameter
Increased front brake pad coefficient of friction
Increased front caliper piston diameter
Wheel Lock in a front bias car
Imbalanced forces (rear wheels)
Role of Fluids in Brake System
Role of Fluids in a Brake System
Easily transfers force to each wheel
No need for complicated system of
rods and pulleys
Essential to magnify force
Pascal’s principle: hydraulic lift
Conclusion
Components of brake System
Master cylinder
Caliper
Rotor and Brake Pads
Forces
Mechanical force, hydraulic force, friction, torque
Equilibrium
Wheel lock
Fluids
Transfer forces
Magnify forces