A brake is a mechanism used to slow or stop a vehicle from moving. Brake systems, on the other hand, represent systems with a more complex structure typically found in automobiles. This mechanism, which slows down or stops the vehicle, must have a solid structure. A weak braking system is not enough to slow the vehicle down safely. The system is designed taking into account the condition of the vehicle so that the braking system works optimally with the vehicle.
In primitive and old brake systems, when the brake pedal was pressed, the wheels were locked with the help of discs. However, in today's cars, modern braking systems are used to prevent situations such as skidding, locking or overturning. Hydraulic pressure is used to actuate the brake mechanism in vehicles with hydraulic brakes. Air brake systems are used in heavy vehicles and heavy commercial vehicles. Hydraulic brakes were invented to prevent a vehicle from locking up its wheels.
Since it is not possible to transfer the force applied to the brake pedal to the tires of a vehicle such as a truck, the truck brake system applies airflow to the wheels and uses air pressure. In heavy vehicles such as buses, trucks, and lorries, the force applied to the brake pedal cannot be transmitted to the wheels of the vehicle. Therefore, the air rises to the wheels of the vehicle, which is driven by pneumatic power. Air brakes are used in trucks. It prevents skidding and overturning by giving air to the left and right wheels according to the load distribution of the vehicle.
Air brake system malfunctions are narrowing and blockage from the lines, drum and pad wear, leakage in the brake air chambers, low brake pressure, low brake adjustment, oily pads, and bending of the brake drum. As the brakes bleed, hydraulic fluid circulates in the brake hydraulic system and creates and transmits pressure to generate braking force. Fluids are incompressible and transmit the same force acting on them. This principle is used effectively in brake systems and can compress air. That is, when a force is applied, the force is bent without being transmitted. Therefore, the brakes do not hold when the brake pedal is pressed.