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ENGINE
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DISTINCT FEATURES OF VAICOR SYSTEM
•
The VARICOR System is powered by 2.2 L VAR-
ICOR engine which uses contemporary Delphi
1600 bar fully-electronic Common Rail Injection
system.
•
In case of engine getting overheated, ECU re-
duces the power of the engine as a precaution
from getting damaged.
•
Fault detection – ECU constantly monitors the
functioning of various sensors & actuators and
detects the faults generated in the system & indi-
cates the status of fault via the “MIL” lamp.
•
Corrections for different environmental conditions
such as hot climate, cold climate & altitude. VAR-
ICOR engine adjusts automatically to suit
variation in external environment conditions.
•
Cylinder balancing: The engine speed is well bal-
anced by reducing cyclic variations in the engine
as all the injectors/Injection parameters are pre-
cisely controlled by ECU.
•
Anti-Oscillation Strategy
(AOS):
Jerks during
sudden accelerations on ARIA VARICOR has
been minimized by using this strategy. The en-
gine speed, vehicle speed & gear change is
continuously monitored & adjustments are made
in such a way to enhance driving pleasure.
ADVANTAGES OF A VARICOR TECHNOLOGY
•
Electronically controlled fuel injection system
•
High pressure injection (1600 bar) for better
emissions & pilot injection for good NVH.
•
Improved Power and Torque throughout engine
speed range
•
Excellent drivability.
•
Improved Gradeability /Restart ability·
•
Excellent cruising ability Lower fuel consumption
•
Improved noise characteristics during cruising
•
Smoother running & enhanced driving pleasure
•
Cleaner exhaust
•
Less CO and particulate emissions
ECU
The Electronic control Unit is a 32 bit microprocessor
which controls the injection parameters ( Fuel Sys-
tem) as well as some of the vehicle related outputs
such as Fan, AC drivability in gears, variable nozzle
turbine (VNT) turbocharger, EGR Control module
etc.
NOTE
For ECU details please refer Engine section of this
manual.
VARICOR SYSTEM CLEANLINESS INSTRUC-
TIONS
Follow the below recommended cleanliness pro-
cedures before removal of any common rail
system components:
This is to prevent dust entry
in the system and to avoid damage to the accurately
machined common rail system components·
•
Wash hands before the work. If necessary wear
new plastic gloves.
•
As soon as there is an opening into the system, it
must be blocked using special cap. After removal
and plugging, each component of the injection
system must be stored in a new hermetically
sealed bag.
•
All plugs / caps and packaging are disposable
and should be discarded after single use.
•
Before disconnecting the battery make sure that
no data is required from the electronic control unit
•
(ECU),
as battery cable disconnection will erase
any fault codes and idle / drive values held in the
keep alive memory (KAM). It is not necessary to
disconnect or remove electronic control modules.
•
Disconnect the battery ground cable.
•
Follow the cleanliness and safety instructions
and use the correct tightening torques.
•
Once the engine stops wait for 5 min. then
start working on the CR system. Do not work
on the injection system with the engine run-
ning.
•
After opening the injection circuit it is strictly for-
bidden to use any tools/ equipment made of a
material which may cause a risk of shedding par-
ticles or fibers
(wood, cloth, cardboard…).
In the
same way, the use of a blower, brush or bristles
is banned because these tools are liable to intro-
duce contaminants into the system.