SsangYong Korando III (2010 year). Manual - part 550

 

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SsangYong Korando III (2010 year). Manual - part 550

 

 

11-20

2) DUMP (ABS is working) Mode

Even when the hydraulic pressure on each circuit is constant, the wheel can be locked as the wheel 

speed decreases. This is when the ABS HECU detects the wheel speed and the vehicle speed and 

gives the optimized braking without locking the wheels. In order to prevent the hydraulic pressure from 

increasing, the inlet valve will be closed, the outlet valve will be opened and the oil will flow into the low 

pressure chamber. In addition, the ABS HECU operates the pump to circulate the oil in the low pressure 

chamber to the master cylinder. This may make the driver to feel the brake pedal vibration and some 

noises. 

Solenoid valve

Valve Open/Close

Pump motor

Inlet valve - Normal open (NO) valve

Close

ON

Outlet valve - Normal close (NC) valve

Open

11-21

4890-00

3) HOLD (ABS is working) Mode

As hydraulic pressure on each wheel increases, the wheel tends to lock. In order to prevent the wheel 

from locking, the hydraulic valve modulator operates the inlet valve control solenoid to stop increasing 

the hydraulic pressure by closing the inlet valve. At this moment, the outlet valve is closed. This 

procedure helps the wheel to maintain a constant hydraulic pressure.

Solenoid valve

Valve Open/Close

 Pump motor

Inlet valve - Normal open (NO) valve

Close

OFF

Outlet valve - Normal close (NC) valve

Close

11-22

4) RISE (ABS is working) Mode

As the wheel speed increases, the inlet valve opens and the wheel's pressure increases due to the 

master cylinder pressure. In addition, the pump circulates the oil in the low pressure chamber to the 

wheel. As the hydraulic pressure to the wheel increases, the wheel speed will reduce. This operation 

continues repetitively until there are no signs that the ABS HECU tends to lock the wheels. Since the 

ABS hydraulic pressure control process takes place repeatedly for a short time, there may be some 

vibration and noises at the brake pedal.

Solenoid valve

Valve Open/Close

 Pump motor

Inlet valve - Normal open (NO) valve

Open

ON

Outlet valve - Normal close (NC) valve

Close

11-23

4890-00

7. CIRCUIT DIAGRAM

 

 

 

 

 

 

 

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