differential SSANGYONG TURISMO 2013 User Guide

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(15) CDPF control
A. Overview
As the solution for environmental regulations and PM Particle Material) of diesel engine, the low
emission vehicle is getting popular. This vehicle is equipped with an extra filter to collect the soot and
burn it again so that the amount of PM in the exhaust gas passed through the DOC (Diesel Oxidation
Catalyst) is reduced. The CDPF (Catalyst & Diesel Particulate Filter) is an integrated filter including
DOC (Diesel Oxidation Catalyst) and DPF (Diesel Particulate Filter).
For details, refer to Chapter "CDPF".
B. Components
Oxygen sensorFront
EGT sensorCDPF
(DOC + DPF)Rear
EGT sensor
Differential pressure
sensorD20DTR ECUElectric throttle body

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Rear EGT sensor:
Measure DPF temp
Diff. pres. sensor:
Measure pressure
between front side and
rear side of CDPFElectronic throttle
body: Control intake
air mass
ECU (DCM 3.7)
Injector: Control post
injection
D. Operation process
When the differential pressure sensor detects the pressure difference between the front and the rear
side of CDPF, the sensor sends signal indicating the soot is accumulated and the post injection is
performed to raise the temperature of exhaust gas. The amount of fuel injected is determined
according to the temperature of exhaust gas detected by the rear temperature sensor. If the
tem
perature is below 600°C, the amount of fuel injected is increased to raise the temperature. If
the tem
perature is over 600°C, the amount of fuel injected is decreased or not controlled. When
the engine is running in low load range, the amount of post injection and the amount of intake air are
controlled. It is to raise the temperature by increasing the amount of fuel while decreasing the amount
of intake air.
Front EGT sensor:
Measure DOC temp
T-MAP sensor
Intake air
mass
Exceed PM
limitBooster
pressure/
temperaturePost injection
Control intake
air mass

04-34120-01
1. SPECIFICATIONS
Front Axle ▶
Rear Axle ▶
Description Specification
Drive shaft type CV joint
Axle housing type Build up
DifferentialType Conventional type
Gear type Hypoid Gear
Final gear reduction ratioEngine + M/T 4.55
Engine + A/T 3.54
OilCapacity 1.2 L
Specification SAE 80W / 90, API GL-5
Description Specification
Axle shaft type Semi-floating
Axle housing type Build up
DifferentialType Conventional type
Gear type Hypoid Gear
Final gear reduction ratioEngine + M/T 4.55
Engine + A/T 3.54
OilCapacity 1.5 L
Specification TOTAL-ISU EP-B 85W/90

04-54120-01
1. OVERVIEW
The axle is the device of transferring the drive power from the engine to the wheels; its inside is fitted to
the side gear spline of the differential gear and outside is connected to the drive wheels. The axles in
front and rear of vehicle are known as the front axle and rear axle respectively.
For the FR (Front engine, Rear wheel drive) type vehicle driven by the rear wheels, the drive power is
basically transferred to the rear wheels in the following order in 2WD mode: Engine-
>Clutch→Transmission→Propeller shaft (Rear propeller shaft)→Final reduction gear (Rear
axle)→Rear axle shaft→Rear wheels. In 4WD mode, the drive power to the rear wheels is
distributed to the front wheels in order of Front propeller shaft->Front axle->Front axle shaft->Front
wheel via the T/C assembly. And, 4WD solenoid valve releases the vacuum and engage the locking
hub actuator to the LH/RH front hub end gear to transfer the drive power of the axle shaft to the front
wheels.
The front axle and front axle shaft are used in only 4WD model. The rear axle has the independent
rear drive axle (IRDA) which is used on the independent rear suspension (IRS).
Front axleTransmission
Transfer case
Front propeller shaft Rear propeller shaftRear axle

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1. OVERVIEW
The propeller shaft transfers the power through the transmission and transfer case to the front/rear
axle differential carrier (final reduction gear). It is manufactured by a thin rounded steel pipe to have
the strong resisting force against the torsion and bending. Both ends of propeller shaft are connected
to the spider and the center of propeller shaft is connected to the spline to accommodate the changes
of the height and length. The rubber bushing that covers the intermediate bearing keeps the balance o
f
rear propeller shaft and absorbs its vibration.
Function of propeller shaft ▶
Transmits driving torque.
Compensates the angle change (universal joint / CV joint).
Compensates the axial length change (splines for the slip joint). -
-
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4WD AT 2WD MT