SSANGYONG NEW ACTYON SPORTS 2012 Service Manual

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1) Oxidation of DOC
The DOC oxidizes HC and CO of the exhaust gas in the two-way catalytic converter at 180℃ or
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47005b00570057004700880095008b0047005c005700570b45>. The front EGT sensor
detects whether the DOC can burn (oxidize) the post-injected fuel or not, and sends the signal to
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89008c009b009e008c008c00950047005a0057005700470088>nd 500℃. The DOC reduces
CO and HC of the exhaust gas by redox reaction and also reduces small amount of PM.
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9b008f0088009500470058005f00570b45>
2. CO and HC are oxidized by the catalyst materials: More than 180℃

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2) Collecting PM of DPF
There is a filter installed in the DPF and the PM filtered by this filter is burned (regeneration) when
the temperature of exhaust gas is increased due to post-injection. The filter has a honeycomb-
like structure to capture the particulate matter and the inlet and outlet of each channel are closed
alternatively. Once the exhaust gas enters to the inlet of a channel, it is released from the outlet of
the adjacent channel through the porous wall because of the closed outlet of the first channel,
and the PM is collected in the first channel.
[Collecting PM of CDPF]
Normally, when the driving distance becomes approx. 600 to 1,200 km, enough amount of
soot to be burned is filtered and accumulated in the CDPF. The ECU increases the amount of
fuel post-injection to increase the temperature of the exhaust gas up to 600°C, so that the
soot is burned. The soot is burned for 15 to 20 minutes (may differ by conditions).

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3) PM Regeneration of DPF
The differential pressure sensor installed in the DPF measures the pressure values of inlet and
outlet of CDPF. And the amount of the PM collected in the filter is calculated based on the exhaust
temperature, intake air mass flow, booster pressure, etc.
The regeneration is started when the amount of the collected PM is 28 g or more.
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940097008c00990088009b009c0099008c00470096008d0047>CDPF to 600℃.
When the amount of the collected PM is not enough: The DPF works as a filter. 1.
When enough amount of PM is collected: The ECU commands post-injection and increase the
exhaust gas temperature to start regeneration. 2.

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4) Fuel Injection During CDPF Regeneration

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6. ELECTRIC CIRCUIT DIAGRAM

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1. ENGINE DATA LIST
Data Unit Value
Coolant temperature℃ 0.436 V (130℃) to 4.896 V (-40℃)
Intake air temperature℃ -40 to 130℃ (varies by ambient air
temperature or engine mode)
Idle speed rpm750 ± 20
Engine load % 18~25%
Mass air flow kg/h 16 to 25 kg/h
Throttle position angle°TA 0° (Full Open) to 78° (Close)
Engine torque Nm varies by engine conditions
Injection time ms 3 to 5ms
Battery voltage V 13.5 V to 14.1 V
Accelerator pedal position 1 V 0.4. to 4.8V
Accelerator pedal position 2 V 0.2 to 2.4 V
Throttle position 1 V 0.3 to 4.6 V
Throttle position 2 V 0.3 to 4.6 V
Oxygen sensor mV 0 to 5 V
A/C compressor switch 1=ON / 0=OFF -
Full load 1=ON / 0=OFF -
Gear selection (A/T) 1=ON / 0=OFF -
Knocking control 1=ON / 0=OFF -
Brake switch 1=ON / 0=OFF -
Cruise control 1=ON / 0=OFF -

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Glow plug
Differential pressure
sensor
Camshaft position
sensor
1. MAJOR COMPONENTS
Rear EGT sensor
Oxygen sensor
Front EGT sensor
HFM (air mass/
temperature)
Injector (C3I)
Variable swirl valve
actuator
IMV

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Fuel rail pressure
sensorEGR valveFuel temperature
sensor
Electric throttle bodyKnock sensor
(2 ea)
Coolant temperature
sensor
T-MAP sensorD20DTR ECU
E-VGT actuator
Water sensorGCU (Preglow control
unit)
E-EGR bypass valve

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2. SYSTEM OPERATION
1) Input/Output of ECU
(1) ECU Block diagram

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Fuel rail pressure
sensor
(2) Components for ECU Input
CAN
- ABS & ESP
- GCU
- Instrument
cluster
- TCUSwirl valve position
sensor
Differential
pressure sensorE-EGR valve
position sensorCamshaft position
sensorCoolant
temperature senso
r
Exhaust gas
temperature senso
r
HFM sensorOxygen sensorT-MAP sensor
Crankshaft position
sensor
Accelerator pedal
sensorThrottle position
sensorKnock sensor
-Auto cruise switch
- Rear right wheel
speed (without ABS)
- Refrigerant pressure
sensor
- Clutch pedal signal
- Blower switch signal
- Brake pedal signal
Water sensor