Texas RS

Has anyone had issues with the Aim GPS engine? Any idea what causes this or what to do about it?

ProCoach

Crappy drift between the GPS plot and the Google maps. Not a feature I recommend using often. No way to separate individual laps out either.

Matt Romanowski

I'm sure if Roger sees this he can explain the GPS part better (he's really an expert in it), but the Google maps is not always accurate. The AiM data is usually pretty accurate from day to day, year to year with minimal shift. The Google Maps change quite a bit. Like Peter, I don't normally use this feature a lot, but it is cool to use on occasion.

Shoot me an email and I can send you the part of Roger's seminar that explains this. The PDF is too big to upload here.

ir_fuel

This is something the Performance Box does a lot better. There you can really overlay GPS tracks of different sections and compare driving lines.

ProCoach

I use VBOX every day and while comparison is good, the course limits on their maps are no better...

ir_fuel

I was talking more about overlaying gps plots of different laps and zooming in on certain sections. In the AiM tools these GPS views are not very user friendly.

gobuffs

Roger talks about this in the classes. GPS drift- nothing you can do about it.

Texas RS

With the VBox data I have looked at individual or a group of laps and have never experienced this issue. The tracks are within track bounds, unless I am not ;-) I am also able to reliably compare my line to a friend's line with good correlation.

In the below my line is in red and my friend's line is in green. The lines are so different because he is passing a car going into T1 at COTA.





I know that there have been independent studies done that say the VBox GPS data is among the best. I was trying to find out if there was a setup or hardware issue (something that can be fixed) with the AiM system that had caused these anomalies. I have looked at .kml files from other drivers and while there are some questions about the track boundaries, there was nothing as out of bounds this session.

ir_fuel

Texas RS: that's the stuff I am talking about. It's just impossible with the AiM hardware/software to do this.

ProCoach

It's also impossible to pull out individual laps on the AiM to do this. Only full sessions, but the fix is coming...

I meant on the VBox, the white course limits map is not particularly good, not tried a .kml export yet.

ProCoach

Can you tell me how to do this with a .vbo file? Or within Performance Tools or Cirrcuit Tools? Cool!

Texas RS

Peter,

1. Using VBox Tools open desired .VBO file.
2. Under View select Main graph
3. Using the edit tools delete the laps you do not want
4. Under File > Export chose Export to Google Earth
5. You will be prompted to define the location and filename to save the .KML file

To use the file open Google Earth and open the .KML file and that should allow you to fly to the track and then you can zoom in like the turn 1 view I shared previously.

I think I have your email so I will send you a .kml file to play with on Google Earth. Let me know if I can provide any more assistance.

onefastviking

I'll be at TWS again tomorrow, at least in the AM, come see me and I'll explain what I know in person. Look for me by Steins orange pumpkin in garage 2, I have to put a p/s hose on it early in the AM.
See you at the track !
Viking

sierralima

I don't care what AiM says, I did NOT take out that row of porta potties.

Texas RS

Viking,

You have probably realized that I am not at the track today. We can catch up sometime.

T