harrington
22-05-2008, 09:38 AM
Hi, I'm wondering if someone at Racelogic can help me visualize the 3% CEP a little better because I'm trying to figure out if I should even try to attempt doing line analysis across different drivers and different cars.
I am attaching a little MSpaint drawing I made up and if you someone could help shade in CEP along the entire line for the following scenarios, I'd appreciate it. For simplicity we'll just assume the the track width across the entire 90 degree section is 10 meters and use that as scale. Blue line is driven line.
1) If I were to take the the same car on the same afternoon (4 hour window) with the driftbox not shifted at all, and drive the exact same line at the start and end of the 4 hour session, what would the max possible variance be?
2) If today I ran, then I come back a week later and drive the exact same line, does the CEP get any worse?
I guess what I'm trying to figure out is if 3% is the absolute maximum error regardless of how many days pass between compared runs, time of year, etc.
Is 3% typical or is it the rare maximum.. ie. by any chance (I am hopeful) might CEP mode be closer to 1 - 1.5%?
Assuming 3% CEP how fast does it shift across an entire lap or even just a single corner lasting just 5 seconds?
If you guys could use the same graphic and shade in the possibilities across different time windows along with a little description for each it would be useful. Maybe already some case study exists that you could point me to?
Many thanks.
I am attaching a little MSpaint drawing I made up and if you someone could help shade in CEP along the entire line for the following scenarios, I'd appreciate it. For simplicity we'll just assume the the track width across the entire 90 degree section is 10 meters and use that as scale. Blue line is driven line.
1) If I were to take the the same car on the same afternoon (4 hour window) with the driftbox not shifted at all, and drive the exact same line at the start and end of the 4 hour session, what would the max possible variance be?
2) If today I ran, then I come back a week later and drive the exact same line, does the CEP get any worse?
I guess what I'm trying to figure out is if 3% is the absolute maximum error regardless of how many days pass between compared runs, time of year, etc.
Is 3% typical or is it the rare maximum.. ie. by any chance (I am hopeful) might CEP mode be closer to 1 - 1.5%?
Assuming 3% CEP how fast does it shift across an entire lap or even just a single corner lasting just 5 seconds?
If you guys could use the same graphic and shade in the possibilities across different time windows along with a little description for each it would be useful. Maybe already some case study exists that you could point me to?
Many thanks.