Hyundai Sonata: 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
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Function improvement of the base-brake system.
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Compensation for the different friction coefficients.
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Elimination of the proportioning valve.
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Failure recognition by the warning lamp.
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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 s ...
ESC Control Module. Components and Components Location
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 ...
See also:
Anchor Pretensioner (APT). Repair procedures
Removal
1.
Disconnect the battery negative cable, and wait for at least three
minutes before beginning work.
2.
Using a flat-trip screwd ...
Fuses
A vehicle’s electrical system is protected from electrical overload damage by
fuses.
This vehicle has 2 fuse panels, one located in the driver’s side panel bolster,
the other in the engine ...
Removing and storing the spare tire
Turn the tire hold-down wing bolt counterclockwise.
Store the tire in the reverse order of removal.
To prevent the spare tire and tools from “rattling” while the vehicle is in motion,
stor ...