Software Dyno for FlashPro users (and maybe KPro)
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From: Hillsboro, Oregon
Originally Posted by spectacle,Sep 13 2010, 03:44 AM
Yea, those with the memory/circuit board update. Mine for example cannot. Even then, its limited to I believe 50 frames a sec.
I found a post that made reference to the sample rate you get with the laptop being limited to the amount of live data you're displaying. When I get a chance I will datalog a pull without nothing but the sensors tab open to see if the framerate goes up.
I found a post that made reference to the sample rate you get with the laptop being limited to the amount of live data you're displaying. When I get a chance I will datalog a pull without nothing but the sensors tab open to see if the framerate goes up.
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I uploaded a new version of the Soft Dyno today. I went back to the drawing board on the smoothing logic, and made it MUCH better.
There are now 3 spinners. One spinner is for smoothing factor, which changes the number of datalog records that will be averaged together for a smoother line. A new spinner is to change the RPM width for each sample. I was calculating a torque value at every 100 RPMs, but I found that making this larger helps smooth the graph a LOT. Another new spinner is to change the RPM offset for the starting RPM. This just sort of moves the graph, and can help identify better peaks and valleys.
The big test was to use the new algorithm on Spectacle's datalog. It's now MUCH, MUCH better. Unfortunately, I'll have to post a picture of it tomorrow...
There are now 3 spinners. One spinner is for smoothing factor, which changes the number of datalog records that will be averaged together for a smoother line. A new spinner is to change the RPM width for each sample. I was calculating a torque value at every 100 RPMs, but I found that making this larger helps smooth the graph a LOT. Another new spinner is to change the RPM offset for the starting RPM. This just sort of moves the graph, and can help identify better peaks and valleys.
The big test was to use the new algorithm on Spectacle's datalog. It's now MUCH, MUCH better. Unfortunately, I'll have to post a picture of it tomorrow...
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The image I posted was just an updated image of the torque graph in the 1st post, showing the improvement in the smoothing logic.
Here is a screen shot of your KPro log compared to 2 of my FlashPro logs. Unfortunately, there is no way for me to determine how much power you were making, since this log was of a 4th gear pull on a conventional dyno. The only way I could estimate your torque would be if you did a 3rd gear pull on a flat road. The only thing this graph is good for is possibly the shape of your torque curve. How does it compare to your dyno plot?
Here is a screen shot of your KPro log compared to 2 of my FlashPro logs. Unfortunately, there is no way for me to determine how much power you were making, since this log was of a 4th gear pull on a conventional dyno. The only way I could estimate your torque would be if you did a 3rd gear pull on a flat road. The only thing this graph is good for is possibly the shape of your torque curve. How does it compare to your dyno plot?
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Originally Posted by gernby,Sep 10 2010, 02:21 PM
A post was created a few minutes ago, but was quickly deleted. Here is my response to the questions raised in that post.
