Recent content by chupa

This motor can up to 8000w but with very lo eff. Watch my test - The EFF with 5kw power input is a approx 70% on 63v. if you will add 6.5kw , the EFF will be approx 55%. It means that about 3 kilowatts will go to heat. It seems to me 6.5 it is possible to give on dispersals quickly. It...

Cyclone controller is not tested , but i think that kelly will be better than Cyclone. Also i have other test my tuned Cyclone 1650w with custom heatsink. Translating of header of table: КПД - is a EFF% P потребляемая - is a P input P механическая - P Out The EFF% of this tuned motor...

Hi ! I am author of this test. I have extended test with kelly kbs72181-x controller. Tables here: http://electrotransport.ru/ussr/index.php?topic=34238.msg790744#msg790744 Also i have test with noname sensorless low cost controller. The effective poor 20% with Kelly. You can read more...

Yes ,but with 'sine' mode... For reduction of a sound I wrapped the motor and reducer in a plastic cover. The cover have thickness 1sm. The cover works as damper and reducer sound destroy in the base. Thus vibrations don't extend on a bike frame and the sound is much more silent than...

Yes ,but with 'sine' mode... For reduction of a sound I wrapped the motor and reducer in a plastic cover. The cover have thickness 1sm. The cover works as damper and reducer sound destroy in the base. Thus vibrations don't extend on a bike frame and the sound is much more silent than...

Yes. I use Hobby King tachometer. I deleted IR sensor in tacho. and connected output hall signal via resistor 10k to IR input. Then choise "4 blade" mode on tacho. The display showing real RPM without calculates. For calculate quansun RPM i used formula - (PRM cyclone / 9.33 ) * (cyclone...

Is this controller can give big torque from start ? Max erpm more than 40.000 ? Is this controller can adjust timings in software ?

I took measurements of magnetic force of a ring which worked for a year. Measurements on the lathe by means of a hall sensor. Peaks of magnetic poles were displaced and there were not strictly at an angle 90 degrees. Also I observed a difference in magnetization of poles. A difference not...

Remember , i can give just working idea , but i can not give to you detailed instructions "How to Make".. The reason - machines and opportunities can differ for us . Your technique can deeply differ with ours.

The stock magnet ring have tooth which deepened in a rotor. I can not rotate stock ring. Also i have strange effecr - i think that is a synchronization failure because current more than 79-80amps can kill a magnetic field of a ring. Sensors of the hall give not the correct code. The problem...

The first bike with alphine8 passed approx 9000km. ( 2 chain Shimano HG-40 is changed). The second project (with alphine8 too) passed 7000 km. Owner told me that 2 chains is changed now. Pictures of this project here http://electrotransport.ru/ussr/index.php?topic=24334.0 "Mad tail bone"...

I harden gears with MAPP gas in my kitchen. Hardenong sungears : https://www.youtube.com/watch?v=6bm6T6StVYY rotor gear: https://www.youtube.com/watch?v=MIJRy4kfm80 But you shall have skill of a hardening of metal. Otherwise the shaft or a sungear can will collapse. Once I had such problem with...

I have not any pictures of this project. Only jokly video because this project impossible to copy. But my construction have not special parts or very difficult custom components. It is classical middrive with pedal freewheel. All parts i purchased in ebay and moskow bike shops via internet...

I use SUNON PF40561BX-000U-A99 coolers. 2pcs in serial.. http://www.sunon.com/tw/products/pdf/DCFAN/PF4056_U.pdf Schematic is very simple. I use China LM2576HV DC-DC (12v output) converter with "Enable" pin. Thermosensor is AD2200 STZ inserted between motor coils tooth and filled silicone...

Uuuahahahahhahh... WORK IN A RUSSIAN TANK ! YES ! Tank is a T-34 ! Weather now +15 degree celsium. Sungears take approx 8000km in prewious project with same power. (approx 4.5kw battery or 3 kw mechanical) About cyclone - cyclone can not work in this power without active heatsink.. No...