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Engine
testing: Engine Automatic Test and
Control System
Engine Automatic Test and Control
System is a large scale measuring
and control engine testing system
which is designed meticulously to
satisfy the property tests and
factory tests of various types of
diesel engines, gasoline engines,
natural gas and liquid petroleum gas
engines. The whole engine testing
system can assemble with various
types and different brands of
Hydraulic Dynamometer, Eddy Current
Dynamometer, DC Dynamometer and AC
Dynamometer. Different parameters
such as engine rotational speed,
torque, power, fuel/ oil
consumption, temperature, pressure
and flow rate can be measured and
controlled.
Engine Automatic Test and Control
System have certain advantages as
comparing with common engine testing
system. The following are some
characters:
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The
advanced CAN bus communication
protocol is applied which is
fulfilled the International
Standard ISO11898 (CAN).
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The network
property can be built up which
all modules can be linked up
together.
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Non-contact, non-wearing digital
potentiometers are introduced.
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Digital PID
adjusts and controls rotational
speed and loading in order to
ensure the control stability.
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Modular
design simplifies the whole
system which brings great
advantages on reliability and
maintenance.
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Three
warning classes for limit
setting (1. Warning, 2.
Protection, 3.Urgent stop).
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Full
software support which helps to
extend the ability of functions
and properties.
Engine testing
applications
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Research and
Development of engines,
typically at an OEM laboratory
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Tuning of
in-use engines, typically at
service centers or for racing
applications
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End of
production line at an OEM
factory
Engine
testing for R&D
Research and Development activities
on engines at automobile OEMs have
necessitated sophisticated engine
test stands. Automobile OEMs are
usually interested in developing
engines that meet the following
three-fold objectives:
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to provide
high fuel efficiency
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to improve
drivability and durability
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to be in
compliance to relevant emission
legislation
Consequently, R&D
engine test stands allow for a
full-fledged engine development
exercise through measurement,
control and record of several
relevant engine variables.
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Typical R&D engine
testing includes the
followings:
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Determination of fuel
efficiency and
drivability:
Torque-speed performance
test under steady-state
and transient conditions
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Determination of
durability: Aging tests,
Oil and lubrication
tests
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Determination of
compliance to relevant
emission legislations:
Volumetric and mass
emission tests over
stated emission test
cycles
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To
gain further knowledge
about the engine itself:
Engine mapping exercise
or development of
multidimensional
input-output maps among
different engine
variables. e.g. a map
from intake manifold
pressure and engine
speed to intake air flow
rate.
How dynamometers are
used for engine testing
Dynamometers are useful
engine testing equipment in
the development and
refinement of modern day
engine technology. The
concept is to use a
dynamometer to measure and
compare power transfer at
different points on a
vehicle, thus allowing the
engine or drivetrain to be
modified to get more
efficient power transfer.
For example, if an engine
dynamometer shows that a
particular engine achieves
400 N•m (300 lbf•ft) of
torque, and a chassis
dynamometer shows only 350
N•m (260 lbf•ft), one would
know to look to the
drivetrain for the major
improvements.
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Reference download
link:
1. Engine Dynamometer
Driving Unit + Measuring and
Control Unit
http://www.powerlinkpt.com/downloads/11.pdf
2. Advanced Fuel Consumption
Measuring Device
http://www.powerlinkpt.com/downloads/12.pdf
3. Engine Fuel Temperature
Control Device
http://www.powerlinkpt.com/downloads/14.pdf
4. Engine Coolant + Oil
Temperature Control Device
http://www.powerlinkpt.com/downloads/15.pdf
5. Engine Throttle Executor
http://www.powerlinkpt.com/downloads/17.pdf
6. Engine Test Platform
Client Introduction
http://www.powerlinkpt.com/downloads/1.pdf
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