Moto-X data logger

[scott411]

on a mx bike you have not got time to look at a display, last lap would be fine, and it would have to be big,
and maybe jsut a warning temp light, and maybe a timer so you can time your moto's

and on the traction control, in the air when jumpin you stop the wheel, and rev the wheel to make it go faster so it would have to account for this,

also data loggers are banned in europe and america for some reason,

[paturoa]

How about realised torque vs wheel spin vs accleration to work out what the optimum traction control would be.

[umka]

I was initially thinking of this as a simple cheap training device not for huge race teams with huge budgets.

The traction thing is a no in my books.

Wanted water temp just for sitting at the line. It would actually be less effort to have the number on the screen than a light so that’s why I said that.

Wanted ave lap time and number of laps so one doesn’t need a computer to be able to see how the session went i.e. anybody just at the track for a ride can see if they are faster/slower than usual and have done enough laps.

[dammad1]

Yeah it may be a bit easy to get carried away with it all. But i think you should add a couple of sensors like the intake and exhaust temp sensors to help tune the bike.

[scott411]

yeah it would be good to be able to scroll though that while staitonary, but you have very little readable stuff on a mx bike while you are riding,

[umka]

yes i understand that scott thats why im data logging all the stuff but no displaying it.

the problem i have with the tuning stuff is that it stuff u dont want it very often. like i dont know myself but how often does one need the inlet and exhaust temp i am only a social rider so have never needed it? surley it would be better to have that as a sepperate device.

what sample rate do you guys think would be good for the data logging? i was thinking 100 times a second for each sensor?

[k14]

Well for competitive mx they would like to know the air/fuel mixture to get optimum performance from it.

My logger on the RS also has a g sensor which is pretty cool. Can get the ic's that have the 6 axis accelerometer built in I think?

[Brian d marge]

there are some good ones already out there ( google )

not expensive and offer all that u will need

Ask if you need help ,,I can point u in the /a direction

Stephen

[sAsLEX]

Well for competitive mx they would like to know the air/fuel mixture to get optimum performance from it.

My logger on the RS also has a g sensor which is pretty cool. Can get the ic's that have the 6 axis accelerometer built in I think?

Why would you need 6 axis? Surely from 3 you can do all the required math.... yay for Kalman filters....

[umka]

hey brian if you have links that would be good.

i have been looking on google but most of the stuff out there is really for road bikes or very evpensive. when i say cheap i mean this unit should cost NZ$250 or less for beacon and data logger with display.

[cheese]

Zigbee wouldn't have the range to allow constant coverage, could do a data dump once a lap.

Not hard to set up a few sites around the track.

[sAsLEX]

Not hard to set up a few sites around the track.

$$$$$$$$$$

[quackquack]

I work with a car team that uses a Motec device during testing that provides live data while on track. It means that we can monitor engine changes on the fly and saves us time during testing as you can know what you need to do before the car gets to pits. These devices are banned at the race meeting but provide us the best possible testing and save us alot of time at the Track. These are programmable to do multiple sensors and really does give awesome feed back.

Also means if the team see the driver doing something wrong they can get him to change driving style and see on one lap that he did a section a little faster if you tell him this immeditaly he can remember what he did instead of telling him when he comes in and he will struggle to remember the line he used 5 laps before.

[umka]

ok so wireless may be sensible but how much does the motec system cost? i was kind of planning to build this so the average rider can afford it and allows them to compair their trainning. what sample rate does the motec use?

[quackquack]

Motec is not cheap at all so if you can do a programme that is affordable you could have a very good business/product.

Look at http://www.motec.com.au/disp.htm to have a look at what they do that might give you some ideas. They also have so drawings on the site of how they hook things up to different things

We use the Telemetry system which you can see on site. If you are looking at doing this maybe you do a base system then have add on to allow the live broadcast. You will find that only the top guys need this and will be willing to pay the top dollar.