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ACCELERATIVE
DYNAMOMETERS: |
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INERTIAL
4.0 |
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INERTIAL
is a data acquisition and calculation software by Soft-Engine
for inertial (dynamic) dynamometer
(drum). Its main feature consists in an instantaneous torque
measurement, through variations assessment of drum(s) angular speed
rotated by vehicle or engine.
It is very easy to use because it runs on WINDOWS environment (WINDOWS 98,
WINDOWS Me, WINDOWS XP); "Click" with the mouse to start
functions.
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The
software has a lot of utilities, such as graphics, diagrams and charts.
Here is a list of the most interesting operations:
It
measures of:
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Instantaneous gear (for
automatic gear test and scooter variable-speed drive-line analysis)
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Highly
sensitive exhaust gas temperature measurement with a
probe (diameter 2 mm)
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Carburation data acquisition system by lambda sensor: a diagram
of voltage (mV) versus regime displaies on the screen, with marks
on the screen about rich / small carburation of engine.
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Displayed
power and torque together
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Displayed
Rpm and Speed togheter
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All
values compared and displayed
Test:
Values
versus:
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Rpm
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Vehicle speed
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Test time
For each assessed
value the following data are available:
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Max., min. and mean value;
cursor to read all curve points
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Smooth effect for the curves
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Zoom, graph scale management
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Test replay
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Sizeable graphics window with complete colour management
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Comparison
of different test curves
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Different
values of a test comparison
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File
section: it is possible to create directories to classify
tests in a single session
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Long filename
management
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Different test
compared charts
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Sensors and
device management improvement
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Quick test
mode choice
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Acquisition
of max. 6 curves in sequence
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Printing
preview with remarks, logo
and graphics management
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Chart
of all values
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Official
data of the most important motorcycle
manufacturers
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Other Soft-Engine software interfaces.
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BRAKED
DYNAMOMETERS: |
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BRAKER
4.0 |
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This software is the same of "INERTIAL" about data analysis,
but it allows also the typical braked tests:
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Giving current to eddy current brake you can make the braked
tests: accelerate the vehicle on the roller and the retarder brakes
automatically or step by step if you want.
Not to give current to eddy current brake to make the
accelerative tests.
There are also some new options, like:
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Easier choice of test modality
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Better load-saving procedure management
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Optimisation of acquisition channels
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ACCELERATIVE
TESTS |
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CONSTANT
RATIO TEST |
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Set a
gear (for example the 5th one), a min. rpm and a max. rpm and then
accelerate the vehicle on the roller. This is a very simple and
quick test to measure the values at wheel.
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VARIABLE
RATIO TEST |
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Insert
a min. speed and a max.
speed, then accelerate the vehicle on the roller. If you acquire the rpm
value by the appropriate rpm sensor (by ignition system), you can
test the scooter very well.
FOR SCOOTER
The “Speed and Regime” diagram is available: you can study the
variable-speed drive-line.
The "Transmission
Ratio" diagram is another interesting feature available. See how
transmission ratio changes during the test!
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VARIABLE
SPEED (SEQUENTIAL GEAR TEST) |
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Insert
a min. speed and a max. speed
and then start the test, shift gears
by 1th up to the maximum gear speed .
In this kind of test you can study also the gear system performances, and
have also the real complete acceleration test.
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ENGINE
HORSE-POWER TEST (DECELERATION TEST) |
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By
this kind of test you can observe the engine horse-power and torque.
Insert a min. rpm and a max. rpm, then accelerate the vehicle up to the
imposed max. rpm value, then engage the clutch: the vehicle must
decelerate until the imposed min. rpm (without slowing down!)
During deceleration, the
software acquires the full
horse-power value lost in the transmission. In this way
you obtain the engine horse-power.
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BRAKED
TESTS |
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CONSTANT
RPM (SPEED) BRAKING |
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By this test is possible to acquire the diagram of
Horsepower and Torque braked mode, that is capturing the rpm of
interest set. It is possible to input one or more points in which the brake
works blocking the acceleration for a number of seconds selected. Besides it is possible it choose to impose a
range of acquisition (for example from 3000 to 12000 rpm) with a step (for example 500 rpm) : in this
way the diagrams are built in a braked mode.
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MAPPING-RUNNING
IN TEST
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By
this test mode we can block the
engine rpm or the vehicle's speed on the selected points (e.g. at 5,000
rpm or 90 Km/h). Points blocking can be done on more than a one point by
point to study the engine. This test is to be carried out for ignition mapping. An acquisition range value and a fixed range (i.e. 250 rpm) can
be set too, in order to develop a power diagram.
You
can repeat the mapping procedure many times, this is the "running-in"
option
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CONSTANT
LOAD BRAKING |
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This test mode simulates an engine loading. You can simulate the effect of a weight of a passenger or a slope
horsepower. In fact the software asks for a "Traction" value.
This test is useful for applying a constant load on the engine and
therefore for carrying out strenght test.
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VARIABLE
SPEED BRAKING |
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This test is used to simulate in the best
possible way the real road behaviour, including drag resistance. Insert a
value for drag resistance and rolls. The braking system will allow a
braking which takes into account the drag resistance quadratic pattern.
You can briefly obtain acceleration time and real max. speed rate of the
tested vehicle on the road ("road
simulation").
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"INERTIAL
AND BRAKER" TEST |
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ROAD
SIMULATION |
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In the
"Road simulation" test,
the eddy current brake loads the engine qith a "quadratic"
law, while the vehicle accelerates like an inertial test.
The quadratic load is calculated using some factors, like the inclination
angle, the Cx, the roller
resistance factor, the vehicle
(and the rider) weight, and others, so the track
conditions are vey well simulated on the dyno! The road
simulation is more truthful in combination with the AIR
BOX ONE fan system, by which the air speed is always the same
of the dynamometer drum.
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