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24 Oct 2013, 20:42 (Ref:3322704) | #1 | ||
Racer
Join Date: Aug 2007
Posts: 394
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Bike data acquisition files
Hi!
I usually do some data acquisition for formulas and GT cars. Yesterday a friend asked me if I could recomend him to buy, and them install and make the correspondent interpretation for a track day bike. I was thinking about and AIM Evo4 that already has GPS and triaxial acc. I could connect it to the ECU via CAN to get rpm and throttle. Then use 2 of the analog channels to have pots of front and rear wheel. Still, I would like to analyse the bike lean angle and was wondering what additional sensor should I buy or if I can calculate it someway (I was thinking about it and I think its not possible with the system I mentioned). Also, I would appreciate somebody can send me an Aim or Motec file of any road bike where lean angle has been measured/calculated. (AIM sample of a Suzuki is useless) Thanks in advance for your help! |
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26 Oct 2013, 08:47 (Ref:3323246) | #2 | |
Veteran
Join Date: May 2007
Posts: 3,215
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I was under the impression that the EVO4 was a bike specific logger....
From the AIM website ......1 integrated three-axial accelerometer, fully configurable, providing all info about the effects of forces acting on your bike while cornering, accelerating or braking........ Surely the tri-axial accelerometer is specifically meant to log cornering angles. It is also possible to get the MXL screen as a slave for the EVO4 now, or so I am told giving a choice between that and the M4 screen. |
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30 Oct 2013, 00:44 (Ref:3324948) | #3 | ||
Veteran
Join Date: Jan 2007
Posts: 509
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If you have to use the Z component in a lean calculation it ends up really noisy. Even trying it from Y axis acceleration can be dodgy. The test is if you try to draw a track map from such derived lean angle data.
Using a single axis Gyro isn't too expensive anymore and is much more accurate. Also, CAN interface isn't user definable with AIM so make sure they have a template for your bike before you begin. |
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