EBD (Electronic Brake-Force Distribution)
EBD (ELECTRONIC BRAKE-FORCE DISTRIBUTION)PRINCIPLE
1. The principle is approximate control of brake force near the required liquid pressure distribution curve (ideal braking distribution curve) by way of adding a logic to ABS ECU instead of the existing P-valve.
2. Rear liquid pressure is controlled so that rear slip ratio will always be less than or same as that of front, having calculated the slip ratio from each wheel speed sensor at braking time.
3. Therefore rear wheel locking does not precede that of front wheel.
4. Consequently brake force improves as rear brake liquid pressure can be enlarged in amount of parts of as shown by deceleration liquid pressure in the figure shown.
5. And eventually whole brake force improvement is realized as brake force can be controlled by liquid pressure distribution curves required of wheel according to friction material dispersion.