Notices

Measuring roll with AIM SoloDL?

Thread Tools
 
Search this Thread
 
Old 04-13-2017, 12:17 PM
  #1  
Ubermensch
Rennlist Member
Thread Starter
 
Ubermensch's Avatar
 
Join Date: May 2005
Posts: 2,058
Received 139 Likes on 93 Posts
Default Measuring roll with AIM SoloDL?

I'm trying to get a better grasp on swaybars' impact on roll. I see that I have channels for yaw and slope, but don't see any options for roll? Is this possible with a Solo? It seems like with a second GPS receiver I might be able to calculate it, but figured I'd test it with the braintrust here.

-Shawn
Old 04-13-2017, 12:24 PM
  #2  
Matt Romanowski
Rennlist Hoonigan
which cost no drachmas
Lifetime Rennlist
Member


Rennlist
Site Sponsor
 
Matt Romanowski's Avatar
 
Join Date: Dec 2001
Location: Manchester, NH
Posts: 12,475
Received 762 Likes on 500 Posts
Default

I've only done roll with shock pots, but you might be able to use the AiM math channel for roll in a motorcycle to get it. I haven't tried, so I don't know if it would work or not.
Old 04-13-2017, 01:29 PM
  #3  
ProCoach
Rennlist
Basic Site Sponsor
 
ProCoach's Avatar
 
Join Date: Jun 2008
Location: Durham, NC and Virginia International Raceway
Posts: 18,692
Received 2,854 Likes on 1,677 Posts
Default

Also, in the new dashes and loggers, pitch and roll are measured.

Have not had luck with anything that doesn't have a gyro. No way to add one with the Solo DL.

Racelogic makes the best GPS solution using multiple receivers. See here. This is what the OEM's use for testing and validation. http://www.racelogic.co.uk/_download...0and%20Yaw.pdf

About 8K British Pounds...
__________________
-Peter Krause
www.peterkrause.net
www.gofasternow.com
"Combining the Art and Science of Driving Fast!"
Specializing in Professional, Private Driver Performance Evaluation and Optimization
Consultation Available Remotely and at VIRginia International Raceway






















Old 04-13-2017, 08:08 PM
  #4  
Ubermensch
Rennlist Member
Thread Starter
 
Ubermensch's Avatar
 
Join Date: May 2005
Posts: 2,058
Received 139 Likes on 93 Posts
Default

Thanks for the quick responses! Looks like I'll stick with my butt-gyro for the moment.

Shawn
Old 04-15-2017, 10:50 AM
  #5  
dbbarron
Burning Brakes
 
dbbarron's Avatar
 
Join Date: Jul 2013
Posts: 777
Likes: 0
Received 12 Likes on 10 Posts
Default

The difference between lateral g's measured with GPS and that measured with the accelerometer should give a relative measure of roll (due to the accelerometer x axis not being planar when rolling, but the GPS measuring lateral acceleration being indifferent to roll). Of course a non-flat surface will influence this as well, but lap to lap if one is making suspension adjustments, that should be removable.



Quick Reply: Measuring roll with AIM SoloDL?



All times are GMT -3. The time now is 08:42 PM.