Virtual Dyno
#1
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Virtual Dyno
http://www.bradbarnhill.com/projects/VirtualDyno/
I came across this on another forum and it looked pretty interesting. Apparently they've created software that will allow you to convert a datalog into a dyno graph. It seems like this would be very helpful in tuning or giving feedback on a particular mod. It doesn't look like megasquirt is currently supported, but from what I've read it sounds like it could potentially be made to work. Has anyone played around with something like this before? Or know of software that works right out of the box?
Obviously there are going to be some limitations but it seems like all the data should be available in the log (time, acceleration, rpm) or able to be reasonably estimated (drag, weight, tire size, gearing). I could even see it being useful for aero tuning which would theoretically show up in the hp/tq of the "dyno".
I came across this on another forum and it looked pretty interesting. Apparently they've created software that will allow you to convert a datalog into a dyno graph. It seems like this would be very helpful in tuning or giving feedback on a particular mod. It doesn't look like megasquirt is currently supported, but from what I've read it sounds like it could potentially be made to work. Has anyone played around with something like this before? Or know of software that works right out of the box?
Obviously there are going to be some limitations but it seems like all the data should be available in the log (time, acceleration, rpm) or able to be reasonably estimated (drag, weight, tire size, gearing). I could even see it being useful for aero tuning which would theoretically show up in the hp/tq of the "dyno".
#6
I have exchanged messages with the creator before while giving the software a go using some of my programs. He would need vehicle specific data for the MX-5 generations to get things going. Afterward, feedback with datalogs and VD plots versus actual dyno results will help with revised "accuracy" for future updates/releases.
This is my personal tuning sample with an EMU exported .txt/.csv file:
It is useful when fine-tuning for gains or MBT. In the meantime, I will probably use my G-Tech Pro RR with the Mazda
This is my personal tuning sample with an EMU exported .txt/.csv file:
It is useful when fine-tuning for gains or MBT. In the meantime, I will probably use my G-Tech Pro RR with the Mazda
#15
Neat... I just made this:
<?xml version="1.0" standalone="yes"?>
<CarDataset xmlns="http://tempuri.org/CarDataset.xsd">
<CarParameters>
<CarMake>Mazda</CarMake>
<CarModel>Miata</CarModel>
<CarSubModel>1.8</CarSubModel>
<StartYear>1994</StartYear>
<EndYear>1997</EndYear>
<Weight>2300</Weight>
<TransTypeManual>true</TransTypeManual>
<TransGear2>1.888</TransGear2>
<TransGear3>1.330</TransGear3>
<TransGear4>1.000</TransGear4>
<FinalGearRatio>4.100</FinalGearRatio>
<DragCoefficient>0.38</DragCoefficient>
<FrontalArea>18.42</FrontalArea>
<TireDiameter>23.68</TireDiameter>
</CarParameters>
</CarDataset>
call it miata_94.xml, create a 'Miata' directory under this directory
C:\Documents and Settings\(your account)\Application Data\Virtual Dyno\Cars\Mazda
<?xml version="1.0" standalone="yes"?>
<CarDataset xmlns="http://tempuri.org/CarDataset.xsd">
<CarParameters>
<CarMake>Mazda</CarMake>
<CarModel>Miata</CarModel>
<CarSubModel>1.8</CarSubModel>
<StartYear>1994</StartYear>
<EndYear>1997</EndYear>
<Weight>2300</Weight>
<TransTypeManual>true</TransTypeManual>
<TransGear2>1.888</TransGear2>
<TransGear3>1.330</TransGear3>
<TransGear4>1.000</TransGear4>
<FinalGearRatio>4.100</FinalGearRatio>
<DragCoefficient>0.38</DragCoefficient>
<FrontalArea>18.42</FrontalArea>
<TireDiameter>23.68</TireDiameter>
</CarParameters>
</CarDataset>
call it miata_94.xml, create a 'Miata' directory under this directory
C:\Documents and Settings\(your account)\Application Data\Virtual Dyno\Cars\Mazda
#18
Here's my file for 89-93 Miatas. I bumped up the weight to account for AC/PS/Turbo + the steel hood that found its way onto my car sometime over the last 21 years. Tire diameter is for a 205/50R15.
<?xml version="1.0" standalone="yes"?>
<CarDataset xmlns="http://tempuri.org/CarDataset.xsd">
<CarParameters>
<CarMake>Mazda</CarMake>
<CarModel>Miata</CarModel>
<CarSubModel>1.6</CarSubModel>
<StartYear>1989</StartYear>
<EndYear>1993</EndYear>
<Weight>2250</Weight>
<TransTypeManual>true</TransTypeManual>
<TransGear1>3.163</TransGear1>
<TransGear2>1.888</TransGear2>
<TransGear3>1.333</TransGear3>
<TransGear4>1.000</TransGear4>
<TransGear5>0.814</TransGear5>
<FinalGearRatio>4.30</FinalGearRatio>
<DragCoefficient>0.38</DragCoefficient>
<FrontalArea>18.42</FrontalArea>
<TireDiameter>23.1</TireDiameter>
</CarParameters>
</CarDataset>
<?xml version="1.0" standalone="yes"?>
<CarDataset xmlns="http://tempuri.org/CarDataset.xsd">
<CarParameters>
<CarMake>Mazda</CarMake>
<CarModel>Miata</CarModel>
<CarSubModel>1.6</CarSubModel>
<StartYear>1989</StartYear>
<EndYear>1993</EndYear>
<Weight>2250</Weight>
<TransTypeManual>true</TransTypeManual>
<TransGear1>3.163</TransGear1>
<TransGear2>1.888</TransGear2>
<TransGear3>1.333</TransGear3>
<TransGear4>1.000</TransGear4>
<TransGear5>0.814</TransGear5>
<FinalGearRatio>4.30</FinalGearRatio>
<DragCoefficient>0.38</DragCoefficient>
<FrontalArea>18.42</FrontalArea>
<TireDiameter>23.1</TireDiameter>
</CarParameters>
</CarDataset>