table SSANGYONG RODIUS 2012 User Guide

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4. SCHEMATIC DIAGRAM
When equipped with ABS, the braking force at each wheel will be controlled with 3-channel 4-
sensor method. And when equipped with ESP, 4 wheels will be controlled independently with 4-
channel method. (When controlling ABS system only, it will be operated with 3-channel method.)
When compared to the vehicle equipped with ABS/EBD only, the internal hydraulic circuit has a
normally-open separation valve and a shuttle valve in primary circuit and in secondary circuit.
When the vehicle brakes are not applied during engine running or when applying the non-ABS
operating brakes, the normally-open separation valve and the inlet valve are open, whereas the
normally-closed shuttle valve and the outlet valve are closed. When the ESP system is operating,
the normally-open separation valve will be closed by the solenoid valve operation and the hydraulic
circuit will be established by the shuttle valve. Then, the inlet and outlet valves will be
closed or open depending on the braking pressure increase, decrease or unchanged conditions.
▶The warning lamp comes on and warning beep sounds when the ESP is operating
Driving feeling when the ESP is operating ▶
▶Noise and vibration that driver senses when the ESP is operating
1) Hydraulic Circuit Diagram
When the ESP operates during vehicle movement, the ESP warning lamp on the instrument
panel flickers and beep comes on every 0.1 seconds. The ESP operation shows that the vehicle
stability is extremely unstable and it is used to warn the driver. The ESP system is just a
supplementary system for the vehicle motion and it cannot control the vehicle when it exceeds
the physical limits. Do not solely rely on the system but be advised to drive the vehicle safely.
When the ESP system activates, the driving feeling can be different depending on vehicle
driving conditions. For example, you will feel differently when the ESP system is activated during
when ABS is operating with the brakes applied and when brakes are not applied on a curve.
Thus, the ESP system would make the driver feel more abruptly when the brakes are applied
during the ESP system activation.
The ESP system may transfer noise and vibration to the driver due to the pressure changes
caused by the motor and valve operations in a very short period of time. Extreme cornering will
trigger the ESP operation and this will make the driver feel noise and vibration due to sudden
brake application. Also, the ESP system controls the engine output. So, the driver may notice
the engine output decrease even when the accelerator pedal is being applied.

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2) ABS Circuit Per ABS Operation Range
▶Hydraulic Pressure Circuit when ABS is Not Operating
The hydraulic pressure in the master cylinder increases through the vacuum booster and it is delivered
to the wheel via the normal open inlet valve. At this moment, the normally-closed outlet valve is closed.
The speed of the wheel that hydraulic pressure is delivered reduces gradually.
▶No Hydraulic Pressure Circuit when ABS is Operating
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 close the inlet
valve and stop the hydraulic pressure increases. At this moment, the outlet valve is closed. This
procedure helps the wheel to maintain a stable hydraulic pressure.

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▶Pressure Decreases in the Circuit when ABS is Operating
Even when the hydraulic pressure on each circuit is stable, the wheel can be locked as the wheel speed
decreases. This is when the ABS ECU detects the wheel speed and the vehicle speed and gives the
optimized braking without locking the wheels. In order to prevent from hydraulic pressure increases, the
inlet valve is closed and the outlet valve is opened. Also, the oil is sent to the low pressure changer and
the wheel speed increases again. The ABS ECU 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.
▶Pressure Increases in the Circuit when ABS is Operating
<0068009a0047009b008f008c0047009e008f008c008c00930047009a0097008c008c008b004700900095008a0099008c0088009a008c009a00530047009b008f008c0047009000950093008c009b0047009d00880093009d008c004700960097008c009500
9a004700880095008b0047009b008f008c0047009e008f008c>el’s pressure increases due to
the master cylinder pressure. The oil in the low pressure chamber circulates to the wheel by the pump
and the wheel speed decreases as the hydraulic pressure at wheel increases. This operation continues
repetitively until there are no signs that the ECU is locking the wheels. When the ABS hydraulic pressure
control takes place, there may be some vibration and noises at the brake pedal.

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Rear 1st/2nd seat
Rear 2nd
Rear 1st
(6) Seat back flat
- When to recline or to flat fully.
(7) Seat back folding
- Fold the rear 1st or 2nd raw seat back to put something on or to utilize it as a table.

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2) Convenient Devices
Ticket holder
Seatback table
Power outlet
Rear cup holders
Tea tablePower outlets Front cigarette lighter Front cup holder