SuperFlow AutoDyn, Руководство оператора

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Description of the Configuration File
Volume 2, Rev 2 6/28/04
Section 9 - Page 11
Channel 76 - BaroP
Channel 76 is used to measure the barometric pressure. The barometric
pressure transducer is located on the circuit board installed in the sensor
box. If you have an accurate mercury barometer, it is recommended that
you calibrate your barometric pressure sensor to exactly agree with the
mercury barometer. If you do not have an accurate barometric pressure
measurement device, you should use the default calibration or obtain an
absolute barometric pressure (station pressure) reading locally. Filtering
is set to 7 and no zeroing is required. Coefficients should not be altered.
0.000 3.636 volts
0.000 29.920 inhg
[101.3 kPa]
9.2.2 Specification Channels
Channels 77 through 99 are all Specifications or Constants. The values shown here are defaults.
Many will change for each variety of test vehicle. Once a set of Specifications has been
determined for a particular test vehicle, it is recommended that the data be saved under the name
of the vehicle. Before beginning the next test of that vehicle, load in the previously recorded set of
Specifications , and the whole test system will be automatically configured for the vehicle under
test. These Specifications are not normally needed to be changed manually if they have been
entered correctly the first time and stored under the name of the vehicle.
Channel 77 - TotlWt Default Value 4000.00 [1409]
Channel 77 is for entering the total weight in pounds [kg] of the test
vehicle with driver. Channel 77 is used by Channel 106 to determine the
actual power required to simulate road load power. This channel only
applies to the ROADLOAD and PROAERO test profiles. Those profiles
will prompt the user for appropriate input when setting up the test
parameters.
Channel 78 - FAxCd Default Value 10.000 [0.929]
Channel 78 is used to enter the estimated effective frontal area of the test
vehicle in square feet
[m
2
] times the drag coefficient, and used by
Channel 107 to calculate the estimated air drag power of the vehicle at
each speed. Typical values for vehicles vary from 10.0 to 30.0 ft
2
[0,93 to
2,79 m
2
] . This channel only applies to the ROADLOAD and PROAERO
test profiles. Those profiles will prompt the user for appropriate input
when setting up the test parameters.
Channel 79 - EngRat Default Value 1.000
Channel 79 is used to enter the ratio between the engine crankshaft
speed and the transmission speed. Typically, this value should be 1.00,
but unique vehicles may require values between 1.5 and 3.0. Channel 79
is used with Channel 80 and 81 to calculate the overall gear ratio in
Channel 55. Channel 79 is not required for any power measurements. It is
only used when calculating transmission slip.