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Author Topic: Coxylaads MT-RX  (Read 24429 times)

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Offline BashplateAlAssad

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Re: Coxylaads MT-RX
« Reply #637 on: 11:29 - 14 June, 2019 »
Would think it would be an absolute boon to stay away from any can bus or direct physical connection to the ECU or control system, safety first, DIY second and all that.

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Offline CoxyLaad

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Re: Coxylaads MT-RX
« Reply #636 on: 09:06 - 14 June, 2019 »
modern bikes run a CAN BUS system which is a twisted pair of cables, which more of a computer network where every sensor and actuator sits on it and broadcasts its information in packets. The ECU sits on it and listens to these packets, and send information in other packets to actuate the actuators (fly by wire throttle etc)

Yamaha don't use this method as of yet. The new R1 might as its running the Bosch traction control, however  The MT09 certainly doesn't use it.

Primarily what I am building is for me, so its not doing any interface with can bus, that said you can get can bus interfaces for the arduino so its possible. My setup would be aimed squarely at bikes that have no can bus systems, or older machines, of which there are many circulating round tracks.

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Offline Zippy

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Re: Coxylaads MT-RX
« Reply #635 on: 21:03 - 13 June, 2019 »
Can't you read a lot of that straight off the ecu?
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Offline CoxyLaad

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Re: Coxylaads MT-RX
« Reply #634 on: 19:22 - 12 June, 2019 »
Could do. Would be interesting to see what temps brake fade starts to come in
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Offline E.T.

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Re: Coxylaads MT-RX
« Reply #633 on: 16:57 - 12 June, 2019 »
What about brake temperatures?

And you would need to buy Gaz a brolly too.

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Re: Coxylaads MT-RX
« Reply #632 on: 16:49 - 12 June, 2019 »
I was having a brain storming session, about how to develop this as a package.  Not really with the aim of making money, but bringing proper datalogging to the masses without costing thousands.

The data channels I would like to record on the completed logger would include:

GPS location data - £35.00
Speed - FOC
rpm - £1.50
brake pressure/switch - FOC
throttle position - FOC
front wheel speed - ~£5.00
rear wheel speed - ~ £5.00
lean angle - £13.00
G force - Rolled in with the above £13.00
front fork movement - not sure
rear shock movement - not sure
tyre temperature - £2.50

I think that was about it.  That's pretty much a full data logging package. I am not too bothered about things like suspension movement but if you were a racer it would be useful information.

The hardware for the above is surprisingly cheap, under £70.00 for the lot of that. It would have way more connectivity than some of those AIM loggers that cost over 2 grand!

If you can think of anything else that would be of interest to a track day goer or racer let me know.

I am also thinking of a spin off for the TDM, and developing an LCD dash that interprets all this information and can do stuff like sat nav etc. Data acquition and display for your more discerning adventure rider  :banana
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Gary.

Essex<-15miles->N15 Commuter
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FZ1 in Black
Black Kawasaki GPZ305
The spirit of resistance to government is so valuable on certain occasions that I wish it to be always kept alive.

Offline CoxyLaad

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Re: Coxylaads MT-RX
« Reply #631 on: 15:59 - 12 June, 2019 »
I was having a brain storming session, about how to develop this as a package.  Not really with the aim of making money, but bringing proper datalogging to the masses without costing thousands.

The data channels I would like to record on the completed logger would include:

GPS location data - £35.00
Speed - FOC
rpm - £1.50
brake pressure/switch - FOC
throttle position - FOC
front wheel speed - ~£5.00
rear wheel speed - ~ £5.00
lean angle - £13.00
G force - Rolled in with the above £13.00
front fork movement - not sure
rear shock movement - not sure
tyre temperature - £2.50

I think that was about it.  That's pretty much a full data logging package. I am not too bothered about things like suspension movement but if you were a racer it would be useful information.

The hardware for the above is surprisingly cheap, under £70.00 for the lot of that. It would have way more connectivity than some of those AIM loggers that cost over 2 grand!

If you can think of anything else that would be of interest to a track day goer or racer let me know.

I am also thinking of a spin off for the TDM, and developing an LCD dash that interprets all this information and can do stuff like sat nav etc. Data acquition and display for your more discerning adventure rider  :banana

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Offline CoxyLaad

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Re: Coxylaads MT-RX
« Reply #630 on: 15:27 - 12 June, 2019 »
especially seeing as though the suit I have for him has the bottom cut out.
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Offline AlunL

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Re: Coxylaads MT-RX
« Reply #629 on: 10:07 - 12 June, 2019 »
Stop now Coxy. Nobody wants to see Gaz in Lycra!

Offline Zippy

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Re: Coxylaads MT-RX
« Reply #628 on: 22:47 - 11 June, 2019 »
Nice one Coxy, was waiting for this bit to be resurrected! Was looking at race chronono etcm ages ago, I can overlay my garmin logs on with that...and some obd data too for er car stuff). Never got round to it....!
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Offline Readmarx

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Re: Coxylaads MT-RX
« Reply #627 on: 22:33 - 11 June, 2019 »
Mega - You’re something like John Britten there in your garage!

In Racer magazine last issues was an interesting article on data. Factory data for Dovi. Manipulated and simplified I’m sure for commercial secrecy. It showed Dovi circulating Quatar. It showed brake temp and pressure for the front and how that ends and the throttle is snapped open - they’re either slowing or going faster, there is nothing else. Whilst the throttle is snapped open the rear brake is often applied to help fine tune and retard wheeling and spin (even with all that data processing the rider is still working hard). The data is giving precise GPS, lean and g-force and all sorts of other things not in the article. Two years ago Racer was reporting the Ducati winter test machine covered in sensors (Ducati arguably are the best factory team to have exploited the control ECU). They had sensors measuring suspension extension and compression in relation to swing arm and fork twist and tyre temp and tyre grip. Sounds like you’re getting close to your own GP team and us seeing Gaz on the grid in your sponsors one piece Lycra cat suit
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Offline CoxyLaad

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Re: Coxylaads MT-RX
« Reply #626 on: 11:36 - 11 June, 2019 »
yep, and stuff like rolling off the throttle coasting before you start to brake. I believe I am quite tidy with this type of stuff, but I will find out for certain shortly ha
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Offline Rob the Nog

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Re: Coxylaads MT-RX
« Reply #625 on: 11:04 - 11 June, 2019 »
Sounds great.  I guess also seeing where you might do things out of habit might be good, e.g. 'comfort' braking etc

Offline CoxyLaad

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Re: Coxylaads MT-RX
« Reply #624 on: 10:58 - 11 June, 2019 »
Sounds great.

Does the app help you analyse the data and recommend changes or more just a processing tool.  For example seeing when I braked I still wouldn't have a clue if that was good or bad, or is it a case of overlaying on an image of the track and simply seeing your line with the braking / acceleration areas and getting a feel for where you can push harder?

it doesn't give advice, it just tells you how it is. The good part comes when the guys you are riding with have the same setup and we start to compare riding styles, where we are quicker/slower, how hard/late/long we are braking, lines through corners etc.

Its all just fun and we arent racing, but a big part of the fun is improvement and feeling like you are getting the most out of your bike. Afterwards we always talk and we tell each other what we are doing on track, but often what we think we are doing is not actually what we are doing, this will remove any doubt as to what is happening.

another thing I am looking at doing is fitting an infrared heat sensor to the front and rear mudguard to show what the tyre temps are. that's a move away from the data logging and more into safety features.
 
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Offline BashplateAlAssad

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Re: Coxylaads MT-RX
« Reply #623 on: 09:13 - 11 June, 2019 »
What board is that Cozy, is it an Arduino clone?

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Gary.

Essex<-15miles->N15 Commuter
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FZ1 in Black
Black Kawasaki GPZ305
The spirit of resistance to government is so valuable on certain occasions that I wish it to be always kept alive.