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 moves closer to the optimum and is controlled
electronically, thus being dispensed with the need for the
proportioning valve.
The proportioning valve, because of a mechanical device, has
limitations in achieving an ideal brake force distribution to the rear
wheels as well as carrying out the flexible brake force distribution
proportioning to the vehicle load or weight increasing. And in the event
of malfunctioning, drivers cannot notice the failure.
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
![](images/ebd_electronic_brake_force_distribution_description_and_operation-612/1/eja0032a.gif)
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 ...
Other information:
Specification
ItemSpecificationPower source3VOperating temperature-30°C ~ +75°C (-22°F ~ +167°F)RF ModulationFSKLF ModulationASKRF frequency433.92 MHzBatteryCR2032Button number4FunctionDoor lockDoor unlockTrunk unlockPanic
...
Components
1. Oil pump sprocket2. Oil pump chain3. Oil pump tensioner assembly4. Crankshaft oil pump sprocket5. Crankshaft RH chain sprocket6. RH timing chain auto tensioner7. RH timing chain tensioner arm8. RH timing chain9. RH cam to cam guide10. RH timing chain guide11. LH timing chain auto ...