Popular Post Scott Dorand Posted September 30, 2019 Popular Post Share Posted September 30, 2019 So it finally happened. One of my hobbies got the better of me. Two weeks ago, I was riding my King Song 18XL on my lunch break. I was on a park road that leads to the bike trail. The speed limit was 25mph and there was a car in front of me. He started slowing down (probably checking me out), until we were doing about 10mph. So I decided to pass. I leaned into it and as I pulled up alongside him the wheel beeped once and turned off. I was probably up to about 25mph. Usually, if I get too aggressive, the wheel beeps a few times and tilts me back. This time it just quit. Next thing I know I'm sliding across the pavement with the wheel tumbling past my head. Luckily I was wearing all my protective gear so my helmet, elbow pads and wrist guards took most of the impact. Minor Road Rash, Bruised hip, Separated Shoulder. I'm having surgery next week to repair the shoulder. The wheel has a broken trolley handle and a few scrapes, but fired right back up. Battery was at 80%. Album Link: https://imgur.com/a/WGwaOuj Wheel is a little beat up, but otherwise fine. The Pads took some battle damage. That shouldn't be there....=P 5 Quote Link to comment Share on other sites More sharing options...
Dan Travers Posted September 30, 2019 Share Posted September 30, 2019 Wow. I had my wheel beep and shut right off while I was waiting for a light to turn a few days ago. Same deal - full battery, no explanation. 1 Quote Link to comment Share on other sites More sharing options...
UniVehje Posted September 30, 2019 Share Posted September 30, 2019 Did you feel the pedals slowly (relatively) dipping or did they go limb suddenly? How many miles do you have on that wheel? Was this in the middle of aggressive acceleration? Any logs? Sorry to hear you need surgery. Quote Link to comment Share on other sites More sharing options...
Popular Post The Fat Unicyclist Posted September 30, 2019 Popular Post Share Posted September 30, 2019 OMG... Glad you were geared up and are (relatively) okay! Do we need to look to start making EUC RIDER Bodyguards too??? 5 Quote Link to comment Share on other sites More sharing options...
Meserias Posted September 30, 2019 Share Posted September 30, 2019 (edited) 7 hours ago, Dan Travers said: Wow. I had my wheel beep and shut right off while I was waiting for a light to turn a few days ago. Same deal - full battery, no explanation. please be very specific about this.... shut or loosing balance but otherwise powered on ? Edited September 30, 2019 by Meserias Quote Link to comment Share on other sites More sharing options...
Scott Dorand Posted September 30, 2019 Author Share Posted September 30, 2019 (edited) 8 hours ago, Dan Travers said: Wow. I had my wheel beep and shut right off while I was waiting for a light to turn a few days ago. Same deal - full battery, no explanation. Mine used to do that too. I figured out it was the trolley handle sensor and disabled it. The Trolley handle sensor won't turn off the wheel while its moving, so don't worry about it dumping you at speed. But if you don't use it, you can disable the feature in the app. You'll just have to remember to shut the wheel off before picking it up. Edited September 30, 2019 by Scott Dorand 2 Quote Link to comment Share on other sites More sharing options...
Scott Dorand Posted September 30, 2019 Author Share Posted September 30, 2019 (edited) 4 hours ago, UniVehje said: Did you feel the pedals slowly (relatively) dipping or did they go limb suddenly? How many miles do you have on that wheel? Was this in the middle of aggressive acceleration? Any logs? Sorry to hear you need surgery. No dipping, it just shut off and went limp. I was still accelerating yes. I was leaning into it pretty hard. The wheel is sitting at about 850 miles. Edited September 30, 2019 by Scott Dorand Quote Link to comment Share on other sites More sharing options...
UniVehje Posted September 30, 2019 Share Posted September 30, 2019 25 minutes ago, Scott Dorand said: No dipping, it just shut off and went limp. I was still accelerating yes. I was leaning into it pretty hard. The wheel is sitting at about 850 miles. Scary to hear this. I ride the same wheel. I can't think of any good reason for it. I would think accelerating too quickly and over powering the wheel would cause different symptoms. With those miles the battery should be as new. There's always a possibility of a single bad cell that could explain it. Have you been balancing the charge? If you find out anything please let us know. Quote Link to comment Share on other sites More sharing options...
Chriull Posted September 30, 2019 Share Posted September 30, 2019 43 minutes ago, Scott Dorand said: No dipping, it just shut off and went limp. I was still accelerating yes. I was leaning into it pretty hard. The wheel is sitting at about 850 miles. At (strong) acceleration missing torque (self balancing) feels exactly like a cutoff. Best wishes for the operation and a good recovery! 15 minutes ago, UniVehje said: Scary to hear this. I ride the same wheel. I can't think of any good reason for it. I would think accelerating too quickly and over powering the wheel would cause different symptoms. Unfortionately that's exactly the symptoms of an overlean, accelerating (hard) at high speeds. Available torque gets less with higher speeds until zhe wheel cannot balance one anymore (support the forward leaning rider). With enough acceleration/forward lean this feels exactly like a cut out. If one accelerates strong enough this overlean can be "achievid" without any beeps/warning or tiltback. Details: https://forum.electricunicycle.org/topic/7855-anatomy-of-an-overlean/?tab=comments#comment-107721 Btw: @Scott Dorand - you did not lock this accident with wheelog? 3 Quote Link to comment Share on other sites More sharing options...
Mono Posted September 30, 2019 Share Posted September 30, 2019 1 hour ago, Chriull said: Unfortionately that's exactly the symptoms of an overlean, accelerating (hard) at high speeds. I think it would be interesting to know whether the wheel was actually off right after the accident. That could give some hint to which one it was. 11 hours ago, Scott Dorand said: The wheel has a broken trolley handle and a few scrapes, but fired right back up. Did you have to push the power button? Quote Link to comment Share on other sites More sharing options...
UniVehje Posted September 30, 2019 Share Posted September 30, 2019 1 hour ago, Chriull said: Unfortionately that's exactly the symptoms of an overlean, accelerating (hard) at high speeds. Available torque gets less with higher speeds until zhe wheel cannot balance one anymore (support the forward leaning rider). With enough acceleration/forward lean this feels exactly like a cut out. I agree generally. That's why I asked if he felt any pedal dipping before. My understanding is that you would first feel some dipping or tilting before it totally cuts out. But this could be difficult to notice so fast or remember after you recover from the ground. Too hard acceleration is certainly the most likely reason. But I think it's worth investigating if it indeed went suddenly limb without any tilting first. I've had a bad face plant and in my case the wheel did tilt forward first. Quote Link to comment Share on other sites More sharing options...
Mono Posted September 30, 2019 Share Posted September 30, 2019 (edited) 7 minutes ago, UniVehje said: My understanding is that you would first feel some dipping or tilting before it totally cuts out. In an overlean there is not separate dipping in advance. It's a dipping that doesn't stop. The pedals just give way and that's it. Because it goes so quickly it may be impossible to differentiate from a so-called cutout. Edited September 30, 2019 by Mono 2 Quote Link to comment Share on other sites More sharing options...
UniVehje Posted September 30, 2019 Share Posted September 30, 2019 1 minute ago, Mono said: In an overlean there is not separate dipping in advance. It's a dipping that doesn't stop. The pedals just give way and that's it. That's exactly what I mean. Versus pedals staying hard and level and suddenly go limb. Usually wheels cut power at some angle so it would stop even trying to balance after it's at 35 or 45 degrees. Quote Link to comment Share on other sites More sharing options...
Seba Posted September 30, 2019 Share Posted September 30, 2019 10 hours ago, Dan Travers said: Wow. I had my wheel beep and shut right off while I was waiting for a light to turn a few days ago. Same deal - full battery, no explanation. There is explanation as @Scott Dorand wrote: trolley handle sensor working incorrectly. Realign & calibrate sensor or just turn it off. 25 minutes ago, Mono said: Did you have to push the power button? I bet he put the wheel in vertical position and engine engaged as usual. Quote Link to comment Share on other sites More sharing options...
Chriull Posted September 30, 2019 Share Posted September 30, 2019 30 minutes ago, Mono said: I think it would be interesting to know whether the wheel was actually off right after the accident. That could give some hint to which one it was. It could give a hint, but while tumbling around after the incident the wheel can easily spin up to lift cut off speed and turn off, too giving a false hint... Quote Link to comment Share on other sites More sharing options...
Mono Posted September 30, 2019 Share Posted September 30, 2019 (edited) 2 hours ago, Chriull said: It could give a hint, but while tumbling around after the incident the wheel can easily spin up to lift cut off speed and turn off, too giving a false hint... You always have to interpret the hints in the right way Edited September 30, 2019 by Mono 1 Quote Link to comment Share on other sites More sharing options...
Scott Dorand Posted September 30, 2019 Author Share Posted September 30, 2019 5 hours ago, Chriull said: Btw: @Scott Dorand - you did not lock this accident with wheelog? No, sorry. I only have the King Song App. And it rarely connects on it's own. I have to manually open the app every time, and it usually disconnects again when I lock my phone. Quote Link to comment Share on other sites More sharing options...
EUC Custom Power-Pads Posted October 1, 2019 Share Posted October 1, 2019 If you use an Android smartphone, you have to give the app permission to stay active in the background (Allow background activity). Sometimes the function "Optimize battery usage" has to be deactivated for this app too. Quote Link to comment Share on other sites More sharing options...
Patton250 Posted October 1, 2019 Share Posted October 1, 2019 Thank God you had protective gear. It really saved your head. Of course we have some members here that could’ve just ran off the machine once it stoped at 25 mph and been just fine but the rest of us would have face planted like you. I have the 18XL also. I’ll be turning off the trolley handle sensor. let us know how your shoulder goes. Most important is you are overall OK. 1 Quote Link to comment Share on other sites More sharing options...
mrelwood Posted October 1, 2019 Share Posted October 1, 2019 @Scott Dorand, do you know if your 18XL has the newer mechanical lift switch or the older pressure sensor lift switch? Quote Link to comment Share on other sites More sharing options...
Scott Dorand Posted October 2, 2019 Author Share Posted October 2, 2019 On 10/1/2019 at 1:36 PM, mrelwood said: @Scott Dorand, do you know if your 18XL has the newer mechanical lift switch or the older pressure sensor lift switch? Not sure, but the wheel is only a few months old and from ewheels so I’d assume the new one. 1 Quote Link to comment Share on other sites More sharing options...
Dan Travers Posted October 6, 2019 Share Posted October 6, 2019 I collided with a van last Monday and have broken feet and ankles, bruised ribs and whiplash to show for it. I was properly geared up and wearing Air Jordan high tops - it could have been so much wore. I have secured legal representation! 1 Quote Link to comment Share on other sites More sharing options...
mrelwood Posted October 7, 2019 Share Posted October 7, 2019 9 hours ago, Dan Travers said: I collided with a van last Monday and have broken feet and ankles, bruised ribs and whiplash to show for it. I was properly geared up and wearing Air Jordan high tops - it could have been so much wore. I have secured legal representation! That sounds horrible! What happened?! Quote Link to comment Share on other sites More sharing options...
Dan Travers Posted October 8, 2019 Share Posted October 8, 2019 On 10/6/2019 at 8:50 PM, mrelwood said: That sounds horrible! What happened?! I had entered a traffic circle on 18th and Heather - 9:20 am, no visibility issues. A van hit me, knocked me to the ground and ran over my feet and ankles. Not pleasant at all! Needless to say I have secured legal representation. Good safety gear made a huge difference in the outcome - could have been so much worse. Quote Link to comment Share on other sites More sharing options...
Dan Travers Posted October 8, 2019 Share Posted October 8, 2019 On 9/30/2019 at 4:12 AM, Meserias said: please be very specific about this.... shut or loosing balance but otherwise powered on ? losing balance but otherwise powered on. I had to turn it off and back on to get the balance back Quote Link to comment Share on other sites More sharing options...
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