Hyundai Genesis (DH): Parking Brake System / Electric Parking Brake (EPB) Description and Operation
The EPB is an electronic parking brake.
The EPB is different from existing parking systems which are
operated with the brake pedal or the lever type. The EPB system sends
the signal to the ECU when a driver operates the EPB switch. The ECU
operates the EPB actuator composed of motor and gears. The braking power
is generated when the motor pulls the cable connected to the brake
system.
The EPB module is one of the parts of EPB system. It monitors
the signal of the various sensors in the system, executes a self
diagnosis, and controls EPB system with programmed logic.
Main Function
| 1. |
Static Braking Mode
It controls the operation and cancellation condition of the vehicle when the vehicle stops.
| (1) |
The operation condition: Pull the EPB switch regardless of
ignition switch ON / OFF & the brake pedal pressed condition.
(Pull).
| A. |
The Vehicle speed <= 6kph |
|
| (2) |
The cancellation condition: Push the EPB switch with the ignition switch ON and under the brake pedal pressed condition (Push). |
|
| 2. |
Dynamic Braking Function
DBF (Dynamic Braking Function): The DBF is the braking
function which can operate or cancel the EPB system while driving. This
function is used when foreign materials get in between the brake pedal
or the brake hydraulic line cannot be operated.
| (1) |
The operation condition
It operates only when the vehicle speed is faster than 6kph and the EPB switch is pushed. |
| (2) |
The cancellation condition: The system is cancelled by not pulling the EPB switch. |
| (3) |
Principle of Operation
| A. |
ESC system is normal condition: EPB requests applying pressure of brake to ESP system. |
| B. |
ESC system is abnormal condition: EPB operates the parking brake for reduction of speed. |
|
| (4) |
Special feature
If the anti-lock is operated, the anti-lock control is
performed, and the parking lamp on the cluster keeps blinking in case of
emergency braking. |
|
| 3. |
DAR(Drive Away Release)
|
Removal
Parking Brake Pedal
1.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad")
2.
Remove the IPM after removing the nut and connector.
Components
1. EPB2. Bracket No.13. Bracket No.24. EPB Extension wiring harness5. Parking brake cable
Other information:
I
Self Diagnosis
1.
Self-diagnosis process
2.
How to read self-diagnostic code
After the display panel blinks three times every 0.5 second,
the corresponding fault code blinks on the setup temperature display
panel every 0.5 second and will show two figures.