Hyundai Azera: EBD(Electronic Brake-force Distribution) Description and Operation
Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Brake System / ESC(Electronic Stability Control) System / EBD(Electronic Brake-force Distribution) Description and Operation
Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Brake System / ESC(Electronic Stability Control) System / EBD(Electronic Brake-force Distribution) Description and Operation
| Operation |
The EBD system (Electronic Brake force Distribution) 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
| - |
Function improvement of the base-brake system. |
| - |
Compensation for the different friction coefficients. |
| - |
Elimination of the proportioning valve. |
| - |
Failure recognition by the warning lamp. |
Comparison between Proportioning Valve and EBD
Troubleshooting
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 prohibited.
3.
However, when the ...
ESC Control Module Components and Components Location
Components
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...
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