HiWind

Cross post which you guys shd likely know something about ...
https://rennlist.com/forums/9446331-post28.html
Ie can you adjust your cars KPH dial to tie up to your SoloDL/Ecu data?

utkinpol

is there any word from AiM on firmware upgrades?

amso3

Hi Paul

If you are referring to contacting AIM about OBD protocols, I've done that today. Is there something else I can ask them?

orthojoe

I don't know about release date, but the new one is supposed to include calibration for the internal accelerometer and the fix for steering angle that I was able to test for them.

Nick Wong

I can't seem to find a screen on the Solo DL for calibrating the accelerometers. Is there one, and if not, can it be added? I would hate to think that I need to calibrate it only via laptop- every time the mount is moved slightly it needs to be recalibrated for proper functionality!

orthojoe

You are correct in regards to you concerns. There is currently no way to calibrate without connecting to RS2 on laptop. Hopefully the new version will fix this problem.

Nick Wong

Yes, I found that quite strange since accelerometer calibration in unit has been around since the Mychron 3+ and Gold and is part of the Mychron 4 package also. Having to pull out the laptop for literally every run group is quite silly...

On the other hand, the Solo DL Peter Krause sold me is working perfectly!

HiWind

Good questions guys, I hadn't thought of that.

I did the accelerometer calibration the first time I fitted my DL properly with laptop etc.. took 2 minutes ... and now I pretty much mount it (ie within 5cm) of the same place everytime (using the RAM windscreen mount - neat, solid, works well). I only remove it to download data and keep it safe.

But do I need to recalib. each time? What does the recalib. actually do?

But like Nick I love the Solo DL and beside the cup cars with their motecs, I feel slightly sad for pople with other less able, neat machines.

Nick Wong

In theory, yes, you do need to recalibrate it every time. On the karts we recalibrate it almost every run because it improves the track mapping accuracy (we calibrate it on the ground, not on the stand). Any time you move it slightly it will need recalibration (at least, that's what I've seen on the kart systems which I assume use similar accelerometers as the Solo DL).

You should see the track map I have for Sebring without calibration- a big circle... haha!

orthojoe

from my understanding, calibration marks the exact position of the solo unit in it's mounting position to calibrate the accelerometer. If you're tilted a few degrees in one or more directions from your original mounting position, the readings will be off.

orthojoe

for example, I first calibrated my solo lying face up on my desktop (not knowing how calibration works), and what is supposed to be longitunding Gs became latitude Gs

HiWind

ok thanks for the detail - useful. I think I'll 'aim' to keep my mount more precisely in the same place but atleast its' tilt is always the same. But highlights the subtle vaguaries of the process we like to think is 'precise' especially if you're comparing one days data to another.

Matt Romanowski

You guys are correct on the calibration every time the mount is moved. If you are worried abou the calibration, look at the GPS_Long and GPS_Lat forces. They are calculated using the time stamps and distances from the GPS signal. They are very accurate and should actually just look like a slightly smoothed version of the actual accelerometer readings.

No calibration is needed for the GPS G forces either.

HiWind

Hey Matt - so if you move it from its stable mount to the computer and then back it needs to be recal'd even if its mounted exactly the same way, hegiht, tilt etc...?

ProCoach

Actually, I think Paul was also asking about power on/power off with the SmartyCam connected, too, as well as additional protocol decodings...

The screen is in Race Studio 2 while it is connected to the Solo when the Solo is mounted as it will be used in the car. I recommend using the "auto calibration of all sensors" option, then transmitting to the Solo.

That's good news!

Yes, if your mounting orientation varies by 50mm, that's a LOT. The recalibration "zeroes" the try-axis accelerometers in the Solo.

True, in theory. But I know lots of people who have never calibrated their accelerometers in their Solos and instead, rely on the GPS calculated forces.

Correct.

Interesting. I would have then expected VertG to be displayed as LongG and LatG to be unchanged.

While the GPS_Long is worthwhile, I find that when I am calculating brake attack or release over distance, the actual measured LongG is much better. For me, at least. No processing required. For gross measurement and comparison, the GPS_Long is fine. That's the ONLY way Racelogic's stuff works...

No. If your magnetic mount base does NOT change location or orientation and you merely snap the Solo in and out of the car, it can be set once and left. If you dislodge it at all or there is any question, recalibrate using RS2 and the USB cable.

Best of luck!