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How Does The Brake System Work - Components, Basics, & Function

How Does The Brake System Work - Components, Basics, & Function | Vancouver And Burnaby

A traffic light looms ahead, and you gently press the brake pedal. Ever wondered about the mechanical magic that unfolds beneath your feet? Join us on this journey as we delve into the components, basics, and function of your car's brake system.

Understanding the Components


Brake Pedal

At the heart of this process is the brake pedal, your car's command center for deceleration. A gentle tap translates into a response from the entire brake system.

Master Cylinder

Just behind the scenes, the master cylinder awaits its cue. This hydraulic component converts the pressure from the brake pedal into hydraulic pressure.

Brake Lines

Brake lines are filled with brake fluid. They connect the master cylinder to the next crucial components.

Brake Calipers and Discs (or Drums)

Disc brakes feature a rotor and caliper and drum brakes boast a set of shoes nestled within a rotating drum. Both play a pivotal role in converting kinetic energy into heat.

What Happens When The Brake Pedal Is Pressed


Brake Pedal Activation

It all begins with the gentle or firm press of the brake pedal by the driver. This seemingly simple action sets in motion a series of events that ensure a controlled and safe stop.

Master Cylinder Action

Behind the scenes, the master cylinder takes center stage. It converts the mechanical force from the brake pedal into hydraulic pressure.

Hydraulic Force Transmission

The hydraulic pressure generated in the master cylinder travels through the brake lines. Think of these lines as the channels through which the command is transmitted, much like the intricate pathways in a grand orchestra.

Brake Calipers and Discs (or Drums)

As the hydraulic force reaches its destination, whether it be the brake calipers in a disc brake system or the brake shoes in a drum brake system. The calipers clamp down on the brake discs, initiating a controlled friction.

Friction and Kinetic Energy Conversion

The pressure exerted by the brake calipers creates friction between the brake pads and the rotating brake discs. In drum brakes, a similar effect occurs as the brake shoes press against the rotating drum. This friction converts the kinetic energy of your moving car into heat, a necessary transformation for the intricate dance to unfold.

Slowing Down and Stopping

The heat generated is the applause of this performance, signifying the energy dissipation required for the dance to slow down and eventually come to a stop. The wheels, once twirling with momentum, gracefully reduce their spin under the influence of this controlled friction.

Regulating Speed with Finesse

The brake system doesn't just abruptly halt the movement; it regulates the speed with finesse. The pressure applied to the brake pedal determines the intensity, allowing for a gentle slowing down or a more abrupt stop, depending on the driver's cues.

Safety as the Finale

With its well-coordinated moves, the brake system acts as a guardian on the road, intervening only when needed to ensure a secure and harmonious journey for the driver and passengers.


Nixon Automotive will take care of your car, whether it's for brake repairs or other maintenance procedures; we will be glad to help! Make the most of our services if you're from one of the cities below:

  • Vancouver, Delta, Coquitlam
  • North Vancouver, Port Coquitlam, Port Moody
  • West Vancouver, Pitt Meadows, Maple Ridge
  • Burnaby, Abbotsford, Mission
  • New Westminster, Chilliwack
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