EBD is the abbreviation for Electronic Brakeforce Distribution, in German: electronic brake force distribution. As far as electronic control algorithms go, it's an adjunct to ABS. It works in conjunction with other active safety systems, such as traction control. Toyota, Volkswagen, Renault, Nissan, Kia, Hyundai and other models are also equipped with EBD. It ensures that the braking force is distributed between the wheels or axles according to the conditions, the load on the vehicle and the quality of the road surface. Using this system reduces braking distance.
How EBD works
The system ensures that the wheels do not lock by using the Pressure of the working fluid is regulated in the corresponding brake circuits. Based on the readings of the ABS sensors, the control unit determines the moment when the blocking begins. If necessary, a command to close the corresponding intake valve is issued. This increases the pressure in other circuits until the ABS is activated. If the wheel continues to lock, the intake valves will open. This relieves the pressure.
Popular car models with EBD
- Toyota Corolla Verso AR10, Hilux VII;
- Renault Duster HS, Clio V, Megane III;
- Volkswagen Polo VI, Passat B8;
- Nissan Qashqai 1G;
- Kia Sportage III, Ceed III.
Causes of EBD-Defects
- Dirty ABS sensors
- Insufficient working fluid, for example due to leaks.
- Incorrect setting of the brake light switch.
- Interruptions in the electrical wiring.
- Relay contacts are oxidized.