Kia Rio: EBD(Electronic Brake-force Distribution) Operation

The Electronic Brake force Distribution (EBD) system as a sub-system of the ABS system is to control the maximum braking effectiveness by the rear wheels.

It further utilizes the efficiency of highly developed ABS equipment by controlling the slip of the rear wheels in the partial braking range.

The brake force is moved even closer to the optimum and controlled electronically, thus dispensing with the need for the proportioning valve.

The proportioning valve, because of a mechanical device, has limitations to achieve an ideal brake force distribution to the rear wheels as well as to carry out the flexible brake force distribution proportioning to the vehicle load or weight increasing. And in the event of malfunctioning, driver cannot notice whether it fails or not.

EBD controlled by the ABS Control Module, calculates the slip ratio of each wheel at all times and controls the brake pressure of the rear wheels not to exceed that of the front wheels.

If the EBD fails, the EBD warning lamp (Parking brake lamp) lights up.

Advantages

Comparison between Proportioning Valve and EBD

Failure Diagnosis

1. In principle, ESC and TCS controls are prohibited in case of ABS failure. 2. When ESC or TCS fails, only the failed system control is pr ...

ESC Control Module Components

1. Front - left tube 2. Rear - right tube 3. Rear - left tube 4. Front - right tube 5. MC2 6. MC1 7. ESC control module (HECU) 8. Damper 9. Bracket ...

See also:

Hands free switch Removal
1. Disconnect the negative (-) battery terminal. 2. Remove the driver airbag module. (Refer to the RT group - "DAB and Clock spring ...

Heated Steering wheel Inpection
1. Measure a resistance of NTC and Heated pad. A. NTC resistance(Black / Yellow, Black) - 10.0 kΩ ± 10% (25°C(77°F)) ...

Special Service Tools
Tool (Number and Name) Illustration Use 09200-3N000 Engine support fixture (Beam) Removal and installation of the transaxle. Use t ...