Automotive Repair Blog: Tips, Facts, and Fixes

What is an Electronic Brake Force Distribution System?

When driving, you step on the brake pedal countless times, but for the braking system to work efficiently without the wheels losing traction and skidding, some innovative technology such as ABS and EBD. The electronic brake-force distribution (EBD) system is a critical safety feature in the car. What is it? What does it do? How does it work?

Understanding the Electronic Brake-force Distribution (EBD)

Also referred to as electronic brake-force limitation (EBL), the EBD is part of a car's anti-lock braking system and the electronic stability control (ESC). It combines hydraulic and electronic components that distribute and regulate the braking pressure applied on the wheels to provide highly responsive and safe braking during emergencies. The primary purpose of the EBD system is to prevent road collisions, and that's why it is classified as an active safety feature.

How Does the EBD System Work?

The EBD system picks up data from speed sensors to ensure that every wheel rotates at the same speed. If there are inconsistencies in the data generated, it means that there's a problem, and a tire might be skidding. Consequently, the system enables you to take corrective measures. It features three critical components, including:

  • Speed Sensors – The speed sensors calculate the speed of the car and RPM (engine speed). The data generated in both must match. If not, skidding occurs. The role of the sensors is to determine the chances of losing control and providing the alert through the EBD system.
  • Electronic Control Unit – Data about the speed at each wheel is generated by the sensors and relayed to the electronic control unit. In turn, the ECU determines the slip ratio (the difference between the car speed and tire rotation). Once it calculates the slip ratio, it signals the brake force modulators to maintain the balance within safe limits.
  • Brake Force Modulators – The work of the brake force modulators is to force the brake fluid into the brake lines, thus activating the cylinders to push the brake pads against the wheel. The EBD system regulates the force applied on each wheel.

The three components mentioned above work together and simultaneously to ensure your vehicle's EBD works perfectly. As a result, you get the desired braking response and performance to keep you safe on the road.

Has your car shown any signs of brake problems? Do not hesitate to bring your car into our auto repair shop today!