macgyvercanada Posted July 7, 2022 Share Posted July 7, 2022 Hi all. I just finished up a mid-afternoon commute to the office on my V11. Beautiful day, lovely temperature, smooth ride. I got to the door, hopped off, popped the trolly handle and used my keycard on the door. As I waved to a co-worker the wheel... died. No sounds or anything, just dead. Now there's zero sign of life when I hit the power button. Has anyone come up with a troubleshooting checklist for this sort of issue? I did check the electrical connector between the saddle assembly and the body; seemed fine. Not sure where to go from there.... help! 3 Quote Link to comment Share on other sites More sharing options...
Funky Posted July 7, 2022 Share Posted July 7, 2022 (edited) 15 minutes ago, macgyvercanada said: As I waved to a co-worker the wheel... died. Sound like the wheel was jealous.. And now it's ignoring you. Try sweet talking it? Try taking it to dinner - charge? (Gifts also work.) Maybe jealousy ends and starts talking? Have you tried giving it a massage - extra long power button press? Or multiple fast power button presses? Nothing? Well.. enjoy the dog house. Edited July 7, 2022 by Funky Quote Link to comment Share on other sites More sharing options...
Paradox Posted July 7, 2022 Share Posted July 7, 2022 12 minutes ago, macgyvercanada said: Not sure where to go from there.... help! You may be able to connect to the wheel when you put the wheel on the charger. If you can try running the diagnostics to see if it detects a fault. Does the wheel spin freely or is there resistance to spinning the wheel now? Quote Link to comment Share on other sites More sharing options...
Paradox Posted July 7, 2022 Share Posted July 7, 2022 16 minutes ago, macgyvercanada said: Not sure where to go from there.... help! When was this wheel purchased? How many miles does it have on it? Where did you purchase it from? The dealer might be able to help if it's still under warranty. 1 Quote Link to comment Share on other sites More sharing options...
Chriull Posted July 7, 2022 Share Posted July 7, 2022 2 hours ago, macgyvercanada said: Not sure where to go from there.... help! Does the wheel still turn without notable resistance? Quote Link to comment Share on other sites More sharing options...
Popular Post macgyvercanada Posted July 7, 2022 Author Popular Post Share Posted July 7, 2022 (edited) Hi all, thanks for the replies. Lemme address some of the questions: I buy the wheel dinner on the regular... treat her real sweet like. You know how it is. Note: I still have the V8F as my side-piece... you know how it is. I have tried many combinations of button presses... long, short, repeated, erratic... I have also have thumped, tilted, layed-down, and otherwise thrashed the wheel about. I actually purchased the wheel 2nd-hand so no warranty for this guy. Roughly 2,400km logged on the wheel with no previous issues. No resistence to spinning, I hardly noticed when it died as I was trollying. I actually ditched the wheel at work today and got a convenient lift home, but I will try popping it onto the charger tomorrow to see if I can get some signs of life and connect to the app for diagnostics. Stay tuned... Edited July 7, 2022 by macgyvercanada 4 Quote Link to comment Share on other sites More sharing options...
alcatraz Posted July 8, 2022 Share Posted July 8, 2022 Bms/pack issue? Put it on the charger. Note carefully what happens, light on charger? I would try to turn it on with a single pack connected. First one and then the other. Quote Link to comment Share on other sites More sharing options...
The Brahan Seer Posted July 8, 2022 Share Posted July 8, 2022 I would check the really simple things first like, blown fuse or broken/lose wire and then go from there. Quote Link to comment Share on other sites More sharing options...
macgyvercanada Posted July 8, 2022 Author Share Posted July 8, 2022 Popped it onto the charger: nothing at all. Fuse makes a whole lotta sense to start with, where on the board is that located? Quote Link to comment Share on other sites More sharing options...
Chriull Posted July 8, 2022 Share Posted July 8, 2022 13 minutes ago, macgyvercanada said: Popped it onto the charger: nothing at all. Fuse makes a whole lotta sense to start with, where on the board is that located? According to https://ecodrift-ru.translate.goog/2020/12/08/inmotion-v11-izmeneniya-v-dekabrskoj-partii/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=sv&_x_tr_pto=wapp it seems to be a 60A fuse at each bms pcb: Maybe easier then opening the bms is first measuring voltage at the battery outputs... Trying each pack seperately, as @alcatraz siggested sounds great. For charging and trying to start the wheel. Quote Link to comment Share on other sites More sharing options...
enaon Posted July 8, 2022 Share Posted July 8, 2022 26 minutes ago, macgyvercanada said: Fuse makes a whole lotta sense to start with, where on the board is that located? fuses are under this piece of paper on the board. the bms's will be off if they get no signal from the motherboard, so measuring no voltage on the batteries is normal. 3 Quote Link to comment Share on other sites More sharing options...
Paradox Posted July 8, 2022 Share Posted July 8, 2022 Seems like there is another random shut off and dead wheel. https://www.ebay.com/itm/125406801638?mkevt=1&mkpid=0&emsid=e11051.m43.l1123&mkcid=7&ch=osgood&euid=37337d3809ed4662af363e718aa3d327&bu=43187934894&osub=-1~1&crd=20220708070821&segname=11051 Quote Link to comment Share on other sites More sharing options...
Chrispy8 Posted July 23, 2022 Share Posted July 23, 2022 So was it the fuse? Any update on if you got it working again? 2 Quote Link to comment Share on other sites More sharing options...
macgyvercanada Posted July 31, 2022 Author Share Posted July 31, 2022 (edited) Not yet, haven't even started. I've been riding my V8F which has made procrastinating a bit easier. I'm just coming off a couple weeks vacation now and I'm back here to re-read these posts and make a battle plan for tomorrow. So far the plan is to: Look for something obviously broken Try booting up the wheel with only one battery pack connected at a time Check the control board fuses I'll be back here to tell the tale of whether or not any of that works. I'm less comfortable messing with the BMS. Edited July 31, 2022 by macgyvercanada 1 Quote Link to comment Share on other sites More sharing options...
macgyvercanada Posted July 31, 2022 Author Share Posted July 31, 2022 I've got the V11 on the operating table now. Live update from the surgery room: Disconnected one (and the other) battery: still won't power on No obvious signs of damage I'm going in deeper... 1 Quote Link to comment Share on other sites More sharing options...
macgyvercanada Posted July 31, 2022 Author Share Posted July 31, 2022 Next I cracked open the case and removed the motherboard. Everything looks okie dokie to my untrained eye. I just nudged the big capacitor aside to peel up the paper a bit and peek at the thin-film fuses, which look fine to me but what do I know? Not sure what to try next... Anyone see anything amiss? 1 Quote Link to comment Share on other sites More sharing options...
360rumors Posted July 31, 2022 Share Posted July 31, 2022 Do you have a multimeter? Maybe test for continuity? Maybe there's a short somewhere? Quote Link to comment Share on other sites More sharing options...
macgyvercanada Posted July 31, 2022 Author Share Posted July 31, 2022 (edited) I do have a multimeter. Test... fuses? What else? MOSFETs seem OK. There's no 'cogging' or resistence when I spin the wheel. I did find damage to the motor wire insulation near the shoulder of the suspension rail, but the wires inside appear to be undamaged: Edited July 31, 2022 by macgyvercanada Quote Link to comment Share on other sites More sharing options...
macgyvercanada Posted July 31, 2022 Author Share Posted July 31, 2022 There's near-perfect continuity across the fuses. Quote Link to comment Share on other sites More sharing options...
mike_bike_kite Posted July 31, 2022 Share Posted July 31, 2022 There should be a "sticky" thread that says how to diagnose such a problem. Ideally we could a wiki section that with topics such as how to check the battery, how to charge your wheel properly, how to change a tyre (I know wheels are different), how to read the battery levels on different packs, how to learn to ride, how to fix a puncture etc etc. Quote Link to comment Share on other sites More sharing options...
Chriull Posted July 31, 2022 Share Posted July 31, 2022 (edited) 14 hours ago, macgyvercanada said: What else? The power on butten works? You tried short circuiting the power button pins? Also were the wires from thr button arrive at the pcb? You should look how far the battery voltage goes. Can you measure it at the connectors with everything plugged in? Is there voltage at the big capacitor legs? Next to analyze would be the dc/dc converters. Should be around the coils like the round pieces in the square base labeled 101 and 221 in your pictures? If you get the label of the used ic you'll find the schematics in the datasheet and know where to measure. Edited July 31, 2022 by Chriull Quote Link to comment Share on other sites More sharing options...
Chriull Posted July 31, 2022 Share Posted July 31, 2022 On 7/8/2022 at 2:12 PM, enaon said: the bms's will be off if they get no signal from the motherboard, so measuring no voltage on the batteries is normal. So this "bms turned off if disconnected" seems to be some contact from the battery connector on the motherboard. Should be not to hard to analyze? 2 pins for ground and battery voltage and either two more connected on the motherboard by a copper track or resistor. Or just one more pin connecting to either ground or battery voltage pin? Quote Link to comment Share on other sites More sharing options...
macgyvercanada Posted August 1, 2022 Author Share Posted August 1, 2022 (edited) Quote The power on butten works? You tried short circuiting the power button pins? Also were the wires from thr button arrive at the pcb? Tried that; nothing happened. Quote You should look how far the battery voltage goes. Can you measure it at the connectors with everything plugged in? Is there voltage at the big capacitor legs? Yes, measuring ~78v across both of the capacitors Quote Next to analyze would be the dc/dc converters. Should be around the coils like the round pieces in the square base labeled 101 and 221 in your pictures? I see the items marked 101 and 221... now how do I analyze them? Quote So this "bms turned off if disconnected" seems to be some contact from the battery connector on the motherboard. Should be not to hard to analyze? 2 pins for ground and battery voltage and either two more connected on the motherboard by a copper track or resistor. Or just one more pin connecting to either ground or battery voltage pin? I don't understand this, unfortunately. Are you saying that the problem could be a short-circuit from the battery to the motherboard which casues a fault in the BMS? I'm not sure what to be testing here. Edited August 1, 2022 by macgyvercanada Quote Link to comment Share on other sites More sharing options...
Chriull Posted August 2, 2022 Share Posted August 2, 2022 8 hours ago, macgyvercanada said: Yes, measuring ~78v across both of the capacitors Great. So battery voltage arrives well at the driver/motherboard. 8 hours ago, macgyvercanada said: I see the items marked 101 and 221... now how do I analyze them? Just beside the "101" is an ic with 8 pins - if you get his datasheet you have his recommended schematics and can analyze were to measure. Also on the board without the motor wire connectors and the mosfets is one connector were one sees the labels with 5V and GND. And just the "holes" without the connector installed labeled with 3.3V and GND. And a third place labeled 15V and GND. So already three great spots to measure if the necessary supply voltages are available at the board. There seems also some battery on the board B201. Should be checked, too. There still are many other (smaller) inductances on the board - L1, L2, L4, L5... Could be some converter with U4? Or also with U1? On the driver board are also points labelled 15V, 3.3V,... to check supply voltages. So first check all labeled points for the voltages. 8 hours ago, macgyvercanada said: I don't understand this, unfortunately. Are you saying that the problem could be a short-circuit from the battery to the motherboard which casues a fault in the BMS? I'm not sure what to be testing here. No. The two small extra pins at the battery connectors are to disable the battery if not connected to the motherboard. (And to signal single cell overvoltage?) As you measured full battery voltage at the capacitor legs this part is working ok at your wheel. But for others the check just the battery some connector could be made to "activate" the batteries. Quote Link to comment Share on other sites More sharing options...
macgyvercanada Posted August 2, 2022 Author Share Posted August 2, 2022 Quote Also on the board without the motor wire connectors and the mosfets is one connector were one sees the labels with 5V and GND. And just the "holes" without the connector installed labeled with 3.3V and GND. And a third place labeled 15V and GND. So already three great spots to measure if the necessary supply voltages are available at the board. Well I did this last night: zero voltage at these locations! I assumed it was because the wheel is powered off but perhaps not..? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.