What action does a hydraulic system perform in brake operation?

The hydraulic system in brake operation is crucial as it activates pistons to press the braking elements. When the brake pedal is applied, hydraulic fluid is transmitted through the brake lines to the pistons within the brake calipers. This pressure causes the pistons to move and push the brake pads against the brake rotors, creating the necessary friction to slow down or stop the vehicle. This mechanism is fundamental to ensuring effective braking performance.

In addition to this primary function, hydraulic systems can aid in providing a smooth and responsive braking experience, allowing for fine control over the braking force applied. Understanding this aspect of brake operation is essential when discussing the overall function and performance of hydraulic brake systems.