Pit Bits are up. Interesting goodies like Reed's data acquisition for suspension...

GuyB
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Edited Date/Time 2/2/2013 11:22pm
Check out the full gallery in the photo section. or click: Vital MX Pit Bits: Anaheim 3

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Homey55
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2/2/2013 6:50pm
Thanks! Love the technology part of Pit Bits every week!
2/2/2013 6:51pm
Thanks GuyB!


That TwoTwo spool set up is pretty trick; it must have a crazy fast return for it not to get caught up in something it shouldn't when the fork is compact.
2/2/2013 6:54pm Edited Date/Time 2/2/2013 6:54pm


Anyone have any more information about the "rod for a data acquisition" from this pick?

The Shop

Hoodie
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2/2/2013 6:54pm
Hey guy, Matthes said something about JGR having something cool to show us any idea?
GHR
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2/2/2013 6:59pm
Hoodie wrote:
Hey guy, Matthes said something about JGR having something cool to show us any idea?
Maybe its a Dunlop tire WoohooWoohooWink
Hoodie
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2/2/2013 7:00pm
Hoodie wrote:
Hey guy, Matthes said something about JGR having something cool to show us any idea?
GHR wrote:
Maybe its a Dunlop tire WoohooWoohooWink
Maybe it is, good guess.
Braaap14
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2/2/2013 7:03pm
measuring travel and rate of travel, surprised that cant get readings internally from the shocks honestly... long way to go before we give f1 a run for its money
2/2/2013 7:06pm
Braaap14 wrote:
measuring travel and rate of travel, surprised that cant get readings internally from the shocks honestly... long way to go before we give f1 a run...
measuring travel and rate of travel, surprised that cant get readings internally from the shocks honestly... long way to go before we give f1 a run for its money
How does it work? The spool set up on the fork is self-explanatory, I'm confused how the shock piece works.
Braaap14
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2/2/2013 7:08pm
either it pushes into or past something that reads it's movement, the string one is crazy. doesn't seem like it'd be the best way but they've had to have tried several versions.
Braaap14
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2/2/2013 7:11pm
has to push into or past something that reads its movement.
stillwelding
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2/2/2013 7:11pm
TripleFive wrote:
[img]https://p.vitalmx.com/photos/users/64/photos/64054/s780_020213pba3022.jpg?1359855135[/img] Anyone have any more information about the "rod for a data acquisition" from this pick?


Anyone have any more information about the "rod for a data acquisition" from this pick?
I made a small bracket for Dave'O, a potentiometer mount. Don't see it on there though.
Braaap14
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2/2/2013 7:11pm
or it could be attached to something like a servo that reads its movement
dak446
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2/2/2013 7:14pm
I'm always impressed at how well Reedy's Fox boots match all of his outfits. He has the PERFECT colors (see TripleFive's second photo in this thread), even when everyone else is having a hard time getting their hands on one regular pair! I love a lot of the other new gear out there, including the new 7 stuff, but I think Reed always has the total package dialed.
2/2/2013 7:16pm
I made a small bracket for Dave'O, a potentiometer mount. Don't see it on there though.
Would that be a position transducer?
Braaap14
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2/2/2013 7:16pm
TripleFive wrote:
[img]https://p.vitalmx.com/photos/users/64/photos/64054/s780_020213pba3022.jpg?1359855135[/img] Anyone have any more information about the "rod for a data acquisition" from this pick?


Anyone have any more information about the "rod for a data acquisition" from this pick?
I made a small bracket for Dave'O, a potentiometer mount. Don't see it on there though.
nice.
stillwelding
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2/2/2013 7:20pm Edited Date/Time 2/2/2013 7:24pm
I made a small bracket for Dave'O, a potentiometer mount. Don't see it on there though.
TripleFive wrote:
Would that be a position transducer?
Yes, but all I got was a CAD file from Sergio, and a threaded mount description from Mike. The bracket holds a small threaded post that has a ball on the end to mount the transducer (one end). On a lot of work I do, I only see a drawing for the part of the job I'm doing. That way, one person can't spill the beans about the job they're working on Tongue .
stillwelding
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2/2/2013 7:22pm
Anybody know, since these devices are WiFi, if a hacker can capture the data from the air, to see what the other guy is doing?

jchek779
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2/2/2013 7:24pm
TripleFive wrote:
Would that be a position transducer?
Yes, most likely a LVDT. A magnetic core rides on the moving shaft/rod inside of a coil assembly (primary and secondary windings). Based on the position of the core, the output voltage in the coil assembly secondary winding varies wrt the input voltage. The system needs to be calibrated to map output V vs. position.

Since position/displacement mean nothing to the world of shock absorbers (barring no internal position sensative passages in the shock body), the data needs to be differentiated wrt time to obtain shaft speed.
Braaap14
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2/2/2013 7:25pm
Anybody know, since these devices are WiFi, if a hacker can capture the data from the air, to see what the other guy is doing? [img]https://p.vitalmx.com/photos/users/64/photos/64039/s1600_020213pba3007.jpg?1359854962[/img]...
Anybody know, since these devices are WiFi, if a hacker can capture the data from the air, to see what the other guy is doing?

are they on a network or direct signal ? either could be intercepted but i wouldn't freak out about it.

no teams going to find another 10hp from copying someones fuel mapping.
stillwelding
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2/2/2013 7:27pm
TripleFive wrote:
That's cool man, thanks for the insight stillwelding!
Thanks. I usually don't comment on a job until I see it in public. Some jobs, it doesn't matter, I sign a Non-diclosure and I never reveal that I'm the real manufacturer. That's OK with me, as long as I get paid.
jchek779
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2/2/2013 7:31pm Edited Date/Time 2/2/2013 8:03pm
Anybody know, since these devices are WiFi, if a hacker can capture the data from the air, to see what the other guy is doing? [img]https://p.vitalmx.com/photos/users/64/photos/64039/s1600_020213pba3007.jpg?1359854962[/img]...
Anybody know, since these devices are WiFi, if a hacker can capture the data from the air, to see what the other guy is doing?

Braaap14 wrote:
are they on a network or direct signal ? either could be intercepted but i wouldn't freak out about it. no teams going to find another...
are they on a network or direct signal ? either could be intercepted but i wouldn't freak out about it.

no teams going to find another 10hp from copying someones fuel mapping.
That's the data logging headquarters. I'm not sure if they're reading real time telemetry. They most likely are downloading the data between practices.
http://www.getdata.it/prodotti.php?idprodotto=32&idcategoria=36&lang=eng

Edit - I just looked it up. The box on the bar mounts is the GPS unit.
stillwelding
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2/2/2013 7:31pm
Anybody know, since these devices are WiFi, if a hacker can capture the data from the air, to see what the other guy is doing? [img]https://p.vitalmx.com/photos/users/64/photos/64039/s1600_020213pba3007.jpg?1359854962[/img]...
Anybody know, since these devices are WiFi, if a hacker can capture the data from the air, to see what the other guy is doing?

Braaap14 wrote:
are they on a network or direct signal ? either could be intercepted but i wouldn't freak out about it. no teams going to find another...
are they on a network or direct signal ? either could be intercepted but i wouldn't freak out about it.

no teams going to find another 10hp from copying someones fuel mapping.
I'm not sure, I was doing a little preliminary work on this a couple of years ago, but stopped research when the team got factory bikes. All I know is the software is proprietary and you just use a laptop on the side of the track. I'd be more interested in the suspension data anyway. But I suppose if you don't know the valving............
2/2/2013 7:48pm
Data acquisition and air suspension?

Electronically controlled suspension is just around the corner if not already being tested somewhere.
zookie
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2/2/2013 9:15pm
Braaap14 wrote:
either it pushes into or past something that reads it's movement, the string one is crazy. doesn't seem like it'd be the best way but they've...
either it pushes into or past something that reads it's movement, the string one is crazy. doesn't seem like it'd be the best way but they've had to have tried several versions.
String potentiometers are really common in the DAQ world. I am really shocked they are getting this to reliably work with travel speeds as high as they are in SX/MX. String pots don't like high speeds. An optical sensor would work great here....

Their rear suspension kit is overkill. A small rotary pot on the swingarm pivot would be way more reliable and accurate.

At least some teams are FINALLY using data in motocross. Now they need to prove they are smart enough to do anything with it and not just a bunch of glorified mechanics trying to act smart by throwing data at the equation....

Engineering rant OVER
stillwelding
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2/2/2013 11:22pm
Braaap14 wrote:
either it pushes into or past something that reads it's movement, the string one is crazy. doesn't seem like it'd be the best way but they've...
either it pushes into or past something that reads it's movement, the string one is crazy. doesn't seem like it'd be the best way but they've had to have tried several versions.
zookie wrote:
String potentiometers are really common in the DAQ world. I am really shocked they are getting this to reliably work with travel speeds as high as...
String potentiometers are really common in the DAQ world. I am really shocked they are getting this to reliably work with travel speeds as high as they are in SX/MX. String pots don't like high speeds. An optical sensor would work great here....

Their rear suspension kit is overkill. A small rotary pot on the swingarm pivot would be way more reliable and accurate.

At least some teams are FINALLY using data in motocross. Now they need to prove they are smart enough to do anything with it and not just a bunch of glorified mechanics trying to act smart by throwing data at the equation....

Engineering rant OVER
Sergio, on Team22, is the chassis Engineer, and is actually a Mechanical Engineer.

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