Recent content by Vic Dupont

Hi guys, I have new info! I am hopeful that this will be enough for you to know what's wrong, especially the new observations I made with motor running without wheel. Summary: 1. I was able to fully reproduce the behaviour with bike upside down 2. I did more tests to try and find a bad...

Hi guys! So I got back home and resumed testing. Unfortunately, still no clue what is wrong. First I tested transistors, they seem fine: Second I tried swapping phase wires. Most combinations didn’t seem to start the motor at all, and the last one seemed to make it harder to pedal than...

Thanks a lot for your replies and your help! I'll check again the solder joints. But theoretically, shouldn't that already be good since the controller is receiving the correct voltage from the hall sensor wires as I turn the wheel? About pedal assist sensor, I checked it unfortunately. It's...

Hi there! Here are the news. I spent a weekend on this bike. The general conclusion is that I didn’t spot anything that seemed to explain the problem. I checked continuity of the whole hall sensor loop. I checked continuity of all wires coming in and out of the controller. I opened up the...

Thanks A LOT for your help guys, I really appreciate it! About brake cutoffs: good idea. I disconnected them entirely, to rule this possibility out, and unfortunately they're not the culprits. About hall sensor feedback, it is really interesting to know that this possibility comes to your...

I have new data, freshly arrived from my latest test: actually when the symptom happens, meaning I pedal, motor starts, I stop pedalling, motor stops, I start pedalling again and motor doesn't kick in again, I just noticed that if I stop the bike completely, meaning I reach speed 0 mph, and...

Thanks a lot for the swift reply! I can imagine how that could create the grinding noise, but I don't see how that could cause the temporary power outages. Do you think it could be related? Thanks again very much for the help!

Hi there! My partner’s electric bicycle is no longer working properly. The symptoms evolved, but to summarize today’s situation, when riding it after stopping to pedal, motor often won’t turn back on, unless we bring the bike to a standstill. And when motor is on, it makes a lot of noise...