SsangYong Korando III (2010 year). Manual — part 360

13-5

1793-01

2) Location and Components

HFM sensor

Used as a main map value to control the EGR.
The coolant temperature, engine rpm, engine
load, intake air temperature (HFM: decreased at
60˚C or more), atmospheric pressure
(atmospheric pressure sensor: altitude
compensation) are used as auxiliary map values.

EGR pipe

Transports the exhaust gas from the EGR cooler
and EGR bypass valve to the intake duct.

E-EGR cooler and bypass valve

The cooler lowers the high temperature of the
exhaust gas and the bypass valve directly
supplies the exhaust gas to the intake duct
without passing through the EGR cooler to
reduce the emission of exhaust gas before
warming up the engine.

E-EGR valve

Receives the electric signal from the ECU to
control the valve.

EGR cooler

EGR bypass

13-6

2. OPERATING PROCESS

1) Schematic Diagram

13-7

1793-01

2) Input/Output Devices

3) Control Logic

The EGR system controls the EGR amount based on the map values shown below:

Main map value: Intake air volume

Auxiliary map value:

※
※

Compensation by the coolant temperature

Compensation by the atmospheric pressure: Altitude compensation

Compensation by the boost pressure deviation (the difference between the requested value and the

measured value of boost pressure)

Compensation by the engine load: During sudden acceleration

Compensation by the intake air temperature

-

-

-

-

-

The engine ECU calculates the EGR amount by adding main map value (intake air volume) and auxiliary

map value and directly drives the solenoid valve in the E-EGR to regulate the opening extent of the EGR

valve and sends the feedback to the potentiometer.

(1) Operating conditions

Intake air temperature: between -10 and 50℃

Atmospheric pressure: 0.92 bar or more
Engine coolant temperature: between 0 and 100°C

When there is no fault code related to EGR

-

-

-

-

(2) Shut off conditions

Abrupt acceleration: with engine speed of 2600 rpm or more

When the engine is idling for more than 1 minute

Vehicle speed: 100 km/h or more

Engine torque: 380 Nm or more

-

-

-

-

14-3

1114-00

1. SPECIFICATION

Emission Regulation

Euro-V

Front Area

182.41cm

Size

DOC

124 X 158 X 78L

DPF

124 X 158 X 194L

CDPF Canister

Shell

SUS430J1L X 1.5t

End Cone

SUS430J1L X 2.0t (Single)

CDPF

Catalyst Capacity

4.2L

Material of Filter

AT (Aluminum-Titanium Alloy)