Anand Jinesh
Braking System Design
Brakes are one of the most critical safety features of a car. They are responsible for slowing down or stopping the vehicle when the driver applies pressure to the brake pedal. Without brakes, a car would be unable to stop, which would put the driver, passengers, and other individuals on the road at risk.
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In addition to slowing down or stopping the vehicle, brakes also play a critical role in maintaining the car's stability. When a driver applies the brakes, the wheels are forced to slow down or stop, which causes the car's weight to shift forward. This weight shift helps to keep the car stable and prevent it from skidding or sliding out of control.
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Disc vs Drum Brake
There are several types of brake systems that can be found in cars, including drum brakes and disc brakes. Drum brakes are found on older vehicles, and they use a set of brake shoes that press against the inside of a brake drum to slow the vehicle down. Disc brakes, on the other hand, use brake pads that press against a rotor, which is attached to the wheel, to slow the vehicle down.
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Disc brakes are considered to be more advanced and efficient than drum brakes. They are found on most modern vehicles and offer better stopping power and greater durability. Disc brakes also have better heat dissipation, which helps to prevent them from overheating during intense braking.
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For this design, I decided to use disc brakes.

ASC Requirement
As we are planning to race the car at the American Solar Car Challenge (ASC), all of our designs need to be compliant with the ASC regulations.
As per ASC2022 10.5.C:
Solar cars must be able to repeatedly stop from speeds of 50 km/h (31 mph) or greater, with an average deceleration, on level wetted pavement, exceeding 4.72 m/s^2. Performance shall be demonstrated with mechanical braking only.
For added saftey we decided to go with a deceleration of 7.5 m`/s^2
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Braking Calculation
Final Selection
Break Pedal Ratio : 7:1
Master Cylinder Bore : 1 inch
Front
Caliper Area: 1.58 inch^2
Rotor Diameter: 11 inch
Rear
Caliper Area: 2.40 inch^2
Rotor Diameter: 12.88 inch
This system gives a deceleration of 7.44 m/s^2. This satisfies the ASC requirement with a saftey factor of 1.6.
Routing
Using the help of the solidworks routing tool, I was able to build a path for the tubes across the aeroshell. This was an important step to measure the length of the tube required and to ensure that none of the electrical components would be affected by the path.

Next Step
Purchase the parts and install it once the chasis has been manufactured.