RVD
1 kW
I recently put back together my TidalForce frame bike. It has a Crystalyte HS3540, Lyen 12 fet controller, and is running 12s lipo at 15ah. After a big move 3 years ago + 2 more kids, I finally got around to getting this bike back together again and functional.
This morning was my inaugural ride on this bike and it was performing well for the first 5 miles. I wasn't pushing it too hard mostly riding at around 15-20 mph and according to the CycleAnalyst the motor was pulling 10-30 amps most of the time.
I have a basket secured to the rear rack (kind of like milk basket with less height) and my lipo is in some hard cases that i made with floor tile. I took bumps slow and easy because I don't want a big bump to cause a battery pack to come out flying from the basket.
I have 2 set of 3x6s 5ah lipos in parallel and then series.
About 5 miles into the ride, I hit a bump and then immediately noticed that power was cutting in and out (sort of the feeling if regen were to turn on and off every 1/2 second or so). When pulling the throttle, the bike would move but sort of jerk a little bit on/off. I let off on the throttle and checked all of my connections and found that one of the parallel packs came loose. I plugged it back in and tried to ride but still pulsed.
I pull all of the wires apart from the battery to controller and re-plugged everything in and rode and same thing.
I visually inspected all of the connections to the controller (halls, phase, regen, etc.) and they appear fine. I have an electric brake and that also seemed fine. Voltage reading on the CA was in the 46.5-47v range.
I was in limp mode for about a mile or so pedaling and periodically trying out the motor again and about a mile later, the motor started to be stable again and I was able to make it to work (another 2 miles).
Any thoughts on what happened? Could something have overheated and then cooled down? Like I said, I don't think I was pushing the motor or controller by pushing a lot of watts to it (maybe 1500 at peak and 600-900 sustained)?
My ride is a little hilly but nothing major. I recently installed hydraulic disc brakes (front and back) and it sounds like the back scrapes a little bit but not much.
This morning was my inaugural ride on this bike and it was performing well for the first 5 miles. I wasn't pushing it too hard mostly riding at around 15-20 mph and according to the CycleAnalyst the motor was pulling 10-30 amps most of the time.
I have a basket secured to the rear rack (kind of like milk basket with less height) and my lipo is in some hard cases that i made with floor tile. I took bumps slow and easy because I don't want a big bump to cause a battery pack to come out flying from the basket.
I have 2 set of 3x6s 5ah lipos in parallel and then series.
About 5 miles into the ride, I hit a bump and then immediately noticed that power was cutting in and out (sort of the feeling if regen were to turn on and off every 1/2 second or so). When pulling the throttle, the bike would move but sort of jerk a little bit on/off. I let off on the throttle and checked all of my connections and found that one of the parallel packs came loose. I plugged it back in and tried to ride but still pulsed.
I pull all of the wires apart from the battery to controller and re-plugged everything in and rode and same thing.
I visually inspected all of the connections to the controller (halls, phase, regen, etc.) and they appear fine. I have an electric brake and that also seemed fine. Voltage reading on the CA was in the 46.5-47v range.
I was in limp mode for about a mile or so pedaling and periodically trying out the motor again and about a mile later, the motor started to be stable again and I was able to make it to work (another 2 miles).
Any thoughts on what happened? Could something have overheated and then cooled down? Like I said, I don't think I was pushing the motor or controller by pushing a lot of watts to it (maybe 1500 at peak and 600-900 sustained)?
My ride is a little hilly but nothing major. I recently installed hydraulic disc brakes (front and back) and it sounds like the back scrapes a little bit but not much.