Recent content by Dr770

Power controller arrived today. I am using 75mV 100A shunt and the display below. It has alot of functions like voltage/current alarm, total energy display and so. But there is only 1 button to setup and almost no instructions 😔 Didn't have the time yet to solve this puzzle

Actually I am not thinking to go beyond 40 km/h since my wife will be riding it mostly and I have another ICE ciao and know the limitations of the moped, they are very instable at speed not designed for that. I checked the prices of the hub motors around 3-5 Kw and they are quite pricey...

Thanks for your feedback! I am not using the stock v belt pulleys, instead I am machining toothed belt pulley centers to match the transmission input shaft and the motor. becouse of the location of the motor the belt length will be shorter and I am going to be able to locate the battery to the...

More on bldc speed kontrol: As i mentioned before i am using a simple servo tester setup as throttle input, But not using e bike twist throttle. I would like to keep the stock brake levers so i will route a throttle cable to a linear potansiometer and get the voltage a output of the pot as...

Some progress. I designed a motor mounting+cooling plate, made a cardboard template and drilled out and slotted mounting holes on the frame.

I am trying to design a motor mounting plate that will help cooling the motor and add some stiffness to the frame. The gas engine was working as a structural element so this should help a little. The plate will also include toothed belt tensioning between different sprockets

Made some progress and the ciao is in pieces. Luckily the battery and the bldc motor fit in the place where the gas engine sits. This means there will be no extra place needed for battery and achieve a cleaner look. I used a round metal box to mock up the brushless motor.

Simple servo tester-esc set up. Unfortunately my shunt display toasted in 30 seconds. Used the programming card, just followed the directions i could find online. I also tried hall effect twist throttle-servo tester combination but somehow it didn't work. The motor runs fine without any weird...

Yes i think so. But actually i am taking below link as referans. And my motor choice is slightly larger. I will be using a shunt and monitor the current and try to optimise the gearing. https://endlesssphere.com/forums/viewtopic.php?t=44573

Made a charge setup with what's around. Ibax b6 can put out 2.4amps at 6s and gets very hot. So i used a small blower fan to cool it down. I had to set up the check time to 60min to start charging. Since tha battery is very large if you use smaller check time the device can not detect the...

Do you think this will pull the moped and me up to 40km/h?

Just a quick sketch of some of the wiring.

Packing up the batteries with simle battery holders. Used bison contact adhesive which is ok to 70*C.

Here is a picture of someelectronics. Batteries are samsung 18650 30q

All electronics arrived today. Its hard to belive the size of esc, quite small. The motor looks to be ok. I am sure there could be better bearings, but i belive they will do the trick for now. I measured the coil resistance and the value was changing between 0.2-0.3 ohms since there were only 1...