ECO mode SSANGYONG RODIUS 2006 User Guide

0-7
ESP SYSTEM
RODIUS 2007.07
4892-01
Over steeringOversteering is when the steering wheel is
steered to a certain angle during driving and
the rear tires slip outward losing traction.
When compared with under steering
vehicles, the controlling of the vehicle is
difficult during cornering and the vehicle can
spin due to rear wheel moment when the
rear tires lose traction and the vehicle speed
increases.
ESP controls during oversteering
The ESP system recognizes the directional
angle with the steering wheel angle senso
r
and senses the slipping route that occurs
towards the vehicle cornering direction
during oversteering with the yaw rate senso
r
and the lateral sensor. Then the ESP system
applies the brake at the front outer wheel to
compensate the yaw moment value.
In this way, the vehicle does not lose its
driving direction and the driver can steer the
vehicle as he or she intends.
2) ESP Control
The ESP system includes the ABS/EBD and ASR systems allowing the system to be able to
operate depending to the vehicle driving conditions. For example, when the brakes are applied
during cornering at the speed of 100 km/h, the ABS system will operate at the same time the
ASR or ABD systems operate to reduce the power from the slipping wheel. And when yaw rate
sensor detects the rate exceeding 4¡Æ/seconds, the ESP system is activated to apply the
brake force to the corresponding wheel to compensate the yaw moment with the vehicle
stability control function. When various systems operate simultaneously under a certain
situation, there may be vehicle control problems due to internal malfunction of a system o
r
simultaneous operations. In order to compensate to this problem, the ESP system sets the
priority among systems. The system operates in the order of TCS (ASR or ABD), ESP and
ABS. The order may be changed depending on the vehicle driving situations and driving
conditions. As the single-track vehicle model used for the calculations is only valid for a vehicle
moving forward, ESP intervention never takes place during backup.

0-8
RODIUS 2007.07
4892-01
ESP SYSTEM
2) ESP Control
The ESP system includes the ABS/EBD and ASR systems allowing the system to be able to
operate depending to the vehicle driving conditions. For example, when the brakes are applied
during cornering at the speed of 100 km/h, the ABS system will operate at the same time the
ASR or ABD systems operate to reduce the power from the slipping wheel. And when yaw rate
sensor detects the rate exceeding 4¡Æ/seconds, the ESP system is activated to apply the
brake force to the corresponding wheel to compensate the yaw moment with the vehicle
stability control function. When various systems operate simultaneously under a certain
situation, there may be vehicle control problems due to internal malfunction of a system o
r
simultaneous operations. In order to compensate to this problem, the ESP system sets the
priority among systems. The system operates in the order of TCS (ASR or ABD), ESP and
ABS. The order may be changed depending on the vehicle driving situations and driving
conditions. As the single-track vehicle model used for the calculations is only valid for a vehicle
moving forward, ESP intervention never takes place during backup.

0-18
RODIUS 2007.07
4892-01
ABS SYSTEM
2) HYDRAULIC CIRCUIT DIAGRAM
(1) Hydraulic Circuit of ABS
The vehicle equipped only with the ABS controls the wheel’s braking force using three 3-
channel 4-sensor method. The front wheels that are the primary circuit of the brake system is
composed of two wheel speed sensors and two channel valves system with two inlet valves
and two outlet valves. The rear wheels that are the secondary circuit of the brake system is
composed of two wheel speed sensors, one inlet valve and one outlet valve. This system is
similar to the one from the previous model.

0-18
RODIUS 2007.07
6810-20
AIR CONDITIONING SYSTEM
2) AQS Operation
The AQS operates under air conditioner AUTO mode or when the AQS switch is pressed under
manual mode. It requires preheating time (for seconds) for operation and the module and
sensor are integrated. (However, it operates only when the DEF (defroster) switch on the ai
r
conditioner switch panel is not pressed in.)
Self diagnosis and preheating process during initial operation of A/C controller
(AUTO mode)
1.
AQS operation (AQS switch is pressed in): detecting the polluted outside air
2.
When the air conditioner controller is operated
in AUTO mode during its initial operation, the
air source is changed to the recirculation
mode and AQS LED comes on.
(This is the self diagnosis and preheating
process for AQS.)
1.
After completing the above process, the
AQS
LED is turned off and the air source is
automatically changed to the fresh air mode.
2.
If the AQS switch is pressed in, the AQS
function works regardless of air conditioner
controller operation.
When pressing the AQS switch, the LED on
the AQS switch is turned on and the
AQS
function is activated.
When the polluted outside air is detected, the
AQS operates and converts the air source to
recirculation mode automatically. At this
moment, the recirculation mode indicato
r
comes on in the display.
1.
2.