SAE Road Show II

Topics To Be Presented
The Basic Concepts
Hydraulic layouts
Component functions
Brake Balance
Stopping Distance and Fade
Formula SAE vs. Mini Baja
Lessons Learned
The Rules
Questions
The Basic Concepts
Kinetic energy = heat
F = ma
Newton is always right!
Do the calculations first
When all else fails see rule 3.
Energy Conversion
A vehicle weighing 290 kg. (639 lbs.)
At 90 kph (55.9 mph) has kinetic energy of:
Stopping the vehicle at .9G takes 2.9 Seconds
This is equal to 31 kilowatts (42 HP).
Hydraulic System Configurations
There are two layouts of hydraulic brake systems used in cars and light trucks.
Front/Rear hydraulic split:
Also called axle by axle, vertical, and some times “black and white”.
Diagonal Split:
Also called criss-cross.
The type of split is only significant in the event of a hydraulic system failure.
Diagonal Split System
In a diagonal split system, one brake line is run to
each rear brake and one to each front brake.
The connections are such that the left front and the right rear brake are on one circuit and the right front and left rear are on the other circuit