I made a lean-angle sensor - Page 3

skjeflo · Jul 16th 2016, 10:37 PM

Quote:

Originally Posted by Michael of Burien

I disagree. Although it may not be totally accurate. It can give you information on what the bike is doing(max lean recorded for an adjustable period of time). Additionally you get fore and aft G-force readings.

I had a friend of mine(programmer and math/radio/micro controller developer) look at the paper and device and he said the only thing keeping it from being remarkably accurate is noise(electronic and vibration). The math behind the programming is valid and should work just fine.

I picked up the prototype and got to speak with the creator today. I like what he has planned and we discussed a few ideas of features I thought might be beneficial.

I really like the potential of blind spot monitoring. It's not new. But I don't think it's been done on a motorcycle. And at the price point this technology lends itself to. A whole "feedback" electronics package is not only achievable. But quite practical and even inexpensive. Think about adding a GPS sensor and data recording and you add a lot more potential feedback.

Allow me to disagree with your disagreement. Yes, it the tool gives you some nice fun to know stats, but what real world use ate they to the average person?

I'm not ragging on the concept or the engineering behind it, just how useful the output really is in the real world to a normal everyday rider. Fun to know, sure, but useful in a change my riding way, no.

Kudos to motoru for the project, very cool concept and ideas for the future.

Sent via SM-N900T

Damon Mon Wai · Jul 17th 2016, 12:54 AM

I'll volunteer to do some on track testing!

2wheelpodcast · Jul 18th 2016, 11:37 AM

Got mine today. It is of no use to Joe Ave. To someone who is working on there lap times it is of great use.

Nathan · Jul 18th 2016, 11:52 AM

neato! it makes me geek out! I'll take one if you got any left, lmk

wooden · Jul 18th 2016, 02:53 PM

I briefly perused your paper - looks like you're using DCM for attitude estimation?

Did you consider using a 9-axis sensor? Adding a magnetometer would increase the accuracy and stability, though depending on the placement on a motorcycle, the engine may cause wild readings.

I spent a lot of time with this kind of thing on quadcopters (drones), gyros/accels/magnetos are a lot of fun to play with. The hardest part is always getting clean data, which I'm sure is nearly as difficult on a motorcycle as it is on a quadcopter (excessive vibrations).

I highly suggest tying this into iOS/Android apps - I would definitely build one if you had it available but I have no desire to install a 16x2 LCD on my bike anywhere.

Nice project! Seems like we have similar interests - sending you a message to chat about ideas

motoru · Jul 18th 2016, 03:18 PM

Quote:

Originally Posted by skjeflo

Allow me to disagree with your disagreement. Yes, it the tool gives you some nice fun to know stats, but what real world use ate they to the average person?

I'm not ragging on the concept or the engineering behind it, just how useful the output really is in the real world to a normal everyday rider. Fun to know, sure, but useful in a change my riding way, no.

Kudos to motoru for the project, very cool concept and ideas for the future.

Sent via SM-N900T

It's not life-changing useful, the only thing it helped me with is knowing how close I am to low-siding my bike when I go around the freeway on-ramps. Since I don't track (yet) I had no idea how close I was to the ~45 degree limit that my tires are capable of handling.
Turns out I was taking the turns at 26 degrees, which means I can go faster.

If you really think about it the only thing you really need is a speedometer (for cops), the rest you can go by "feel". It's just another thing to know.

skjeflo · Jul 18th 2016, 08:20 PM

You can lowside with hardly any lean angle. It's about traction (or lack thereof) not lean angle. Also, if you are pushing hard enough on the street to need that kind of lean angle it's only a matter of time before you meet something mid-career that will upset the bike or rider enough to lead to a low or high side.

Sent via SM-N900T

Nathan · Jul 19th 2016, 07:30 AM

for me it would be great to have on the track. instead of asking the instructor about how far I'm leaning I can just check out the max lean at the end of the run.

another good use I see for it is hooking up a warning light to go off when it gets to a certain angle - say 1" from scraping your pegs/exhaust as a heads up that the bottom is about to hit. I think HD riders could definitely use something like that.

good stuff!

EDIT: how about getting a max wheelie angle? would placing the unit rotated 90* from normal work for that?

grider · Nov 7th 2018, 12:53 AM

Hi mate I'm requesting to purchase one of these lean angle sensors you have made ,I know it was a couple of years ago but hoping you can help thanks Greg.

curve addict · Nov 7th 2018, 08:19 AM

I'm curious as to how the device compensates for the g-forces present during a turn. Gyroscopic sensors are generally used because they ignore these forces. A pendulum-style sensor will settle somewhere between gravity's pull and the lateral g-force generated while in a turn. It can only read accurately while the vehicle is standing still or moving at a steady rate in a straight line.

Nathan · Nov 7th 2018, 08:58 AM

Quote:

Originally Posted by grider

Hi mate I'm requesting to purchase one of these lean angle sensors you have made ,I know it was a couple of years ago but hoping you can help thanks Greg.

haven't installed the one I have & might be willing to pass it on, but $$hipping to Roo Land?

Quote:

Originally Posted by curve addict

I'm curious as to how the device compensates for the g-forces present during a turn. Gyroscopic sensors are generally used because they ignore these forces. A pendulum-style sensor will settle somewhere between gravity's pull and the lateral g-force generated while in a turn. It can only read accurately while the vehicle is standing still or moving at a steady rate in a straight line.

it doesn't, it just calcs the tilt angle.

GPD323 · Nov 7th 2018, 03:49 PM

Let me know if you make any more in the future. I'll be happy to buy one from you.

Greg

Nathan · Nov 8th 2018, 07:27 AM

there's an app for that https://www.racetimeapp.com/en/technical-features/
interesting that when they talk about recording lateral G-forces they specify that it is especially for those on 4 wheels...

Parilla125 · Nov 9th 2018, 08:45 AM

I picked up a big V-twin cruiser and just got it on the road this week. Went around a corner at a 'spirited' but not 'aggressive' speed and was rewarded by the feelers on the right running board touching down. That'll wake you up! Don't know what the 'lean angle' was, but it was not much!
There are 'Invention Patent Idea' places that will take your idea and patent it for you. You make an appointment and walk in, present the idea, and they tell you yes or no. I have gone to them and would do it for sure if I made anything like this. Painless process.

Nov 8th 2018, 07:27 AM	#43
Nathan Jan 2016 space needle	there's an app for that https://www.racetimeapp.com/en/technical-features/ interesting that when they talk about recording lateral G-forces they specify that it is especially for those on 4 wheels... Edited by Nathan on Nov 8th 2018 at 07:29 AM

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Jul 17th 2016, 12:54 AM	#32
Damon Mon Wai Inspector Gadget Jan 2016 Seattle	I'll volunteer to do some on track testing!

Jul 18th 2016, 11:37 AM	#33
2wheelpodcast Jan 2016 Medford Oregon	Got mine today. It is of no use to Joe Ave. To someone who is working on there lap times it is of great use.

Jul 18th 2016, 11:52 AM	#34
Nathan Jan 2016 space needle	neato! it makes me geek out! I'll take one if you got any left, lmk

Jul 18th 2016, 08:20 PM	#37
skjeflo Jan 2016 Newcastle, WA 1995 Suzuki Katana	You can lowside with hardly any lean angle. It's about traction (or lack thereof) not lean angle. Also, if you are pushing hard enough on the street to need that kind of lean angle it's only a matter of time before you meet something mid-career that will upset the bike or rider enough to lead to a low or high side. Sent via SM-N900T

Nov 7th 2018, 12:53 AM	#39
grider Nov 2018 Sydney Australia	Hi mate I'm requesting to purchase one of these lean angle sensors you have made ,I know it was a couple of years ago but hoping you can help thanks Greg.

Nov 7th 2018, 08:19 AM	#40
curve addict Apr 2016 Des Moines, WA ...1987 Yamaha FZR1000...	I'm curious as to how the device compensates for the g-forces present during a turn. Gyroscopic sensors are generally used because they ignore these forces. A pendulum-style sensor will settle somewhere between gravity's pull and the lateral g-force generated while in a turn. It can only read accurately while the vehicle is standing still or moving at a steady rate in a straight line.

Nov 7th 2018, 03:49 PM	#42
GPD323 Jan 2016 Spanaway	Let me know if you make any more in the future. I'll be happy to buy one from you. Greg