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  1. N

    Custom Sport Scooter Project

    you tried regenerative braking during downhill ?? as that charge the battery some
  2. N

    Load sharing between Solarpanel and Grid (without batteries)

    hybrid " Grid tie inverter ", is the solution, but still not able to find for adding wind.
  3. N

    How to Bend tube (frame) like this Escooter

    i planned to sketch all mathematical term first, but hub motor is best compared to mid drive, as mid drive spoil its design due to chain look. we have to place batteries/controller under centre foot rest area i think, have to workout in CAD :)
  4. N

    Load sharing between Solarpanel and Grid (without batteries)

    hi guys, is it possible to go without bateries (no power cut or zero shut down in our area) ? think my home is connected to Grid and solar panel. If my home usage in higer than solar panel generating power means, it have to get extra power from grid (only extra power, not full power), is it...
  5. N

    How to Bend tube (frame) like this Escooter

    hi guys, i am amazed about this simple design, i think we need a single long tube and bend it to make this frame. we can use 2kw or 3kw bldc motor is enough for this i think. any more idea or suggestion about tube length or gauge and bending this tube ? i love this simple design too much...
  6. N

    Sensored BLDC motor Escooter - Speedometer doubt

    hi guys, will speedometer needed for sensored BLDC motor fitted Escooter conversion ? (with Cycle analyst) as cycle analyst show the kmph/rpm , will it get directly from hall sensor ?
  7. N

    Arlo's power stage Leaf controller runs and drives page 103

    i am always your fan, good to see the Progress :) buddy, small suggestion, as you're now expereienced in controller thing 1) Is it possible to use 2 motors in bicycle/scooter/motorbike , one in front and another in back, both share equal load using single controller ? (this reduce unsprung...
  8. N

    Custom Sport Scooter Project

    Steel frame electric bike body : above image is designed by our local lathe guys, but they're not ready to share specifications and all, as they're telling, buy the design and do whatever. Before seeing this steel frame, i thought, designing a frame is more difficult, but this steel frame...
  9. N

    QSMOTOR,0.5-12kW Electric Hub Motor & Mid Drive Motor Manufacture China

    https://www.youtube.com/watch?v=m0sm0Jjdnhg&feature=youtu.be which motor used in this Escotter ? and if possible add more details about that scooter too. really impresive video.
  10. N

    Project Blue Smoke - Aprilia RS conversion

    you decided for mid drive (driven by belt or chain)
  11. N

    Custom Sport Scooter Project

    cool built, i think 5 kw motor is enough for full electric, as you replaced the engine and all. so that hub motor have inbuilt rim (come with rim from factory ?), so we just need to put tyre and fix it. whats the rim size ? will it same size as front wheel rim size ? as i am new in this, and...
  12. N

    Custom Sport Scooter Project

    whats the motor rating and size ? you fixed the tyre directly to hub motor ?, because i not seen any spokes.
  13. N

    Tata nano - hybrid conversion help

    Planned to try BLDC hub motor, 2 x front wheel. but size is 12 Inch RIM, so i have to buy BLDC hub motor and fit the tyre directly to MOTOR ?
  14. N

    Tata nano - hybrid conversion help

    hi guys, i need your help and suggestion for converting Tata nano (small car of india), as used cars are cheap, also available easily. Little about vehicle (with petrol engine and all) Weight (total) : 770 kg rear petrol engine : 624 cc Tata nano wikipeia page ...
  15. N

    New Kelly pseudo FOC controller series

    we can change/reprogram settings from the android app itself..? no need to connecting to PC ? if able to change settings means, android only model (with no rs232 or usb connectors, will reduce the size of board/price)-less complex normal model with rs232 and other options.
  16. N

    Why Electric motors are inefficient at low revs?

    Poor efficiency at low speed (say, that is from zero to 10 kmph), better i can pedal ebike initially, in NON zero rpm (atleast some speed) i switch ON controller and use throttle, now it require less torque to run bicycle , so little more efficiency ??
  17. N

    noob BLDC conroller - Just started

    got it. so max voltage will be 60V, and current will be 80 amp at peak (from their data), so i planned to choose little more, say 100 amp FInally i have to design controller of 60V, 100A for 48V 2000W, with 80A peak current BLDC motor Yeah, IRFB4110 is right guy, as it withstant 100V 180A
  18. N

    Need help finding motor controller for Solar Car (Cromotor)

    we can use supercapacitors to store the regenerated current..? like guys do in big trains/buses.
  19. N

    noob BLDC conroller - Just started

    oh, so how to decide the voltage and amp requirement of controller for below motor ?? 10inch Brushless Hub Motor 48V 2000W Model QS10-U5 http://www.uumotor.com/shop/10inch-brushless-hub-motor-2000w-for-electric-scooter-motorcycle is this 48V and 2000W (these 2 values) specification of motor...
  20. N

    Cooling fans inside Hub motors

    so we can pull more amp , so more torque, but due to cooling, it wont damage the motor :) even we can travel longer without any fuss..really a great improvement, must for hilly area commuters, as they need more torque in low speed. is you fan wings are plastic or aluminium or other metal ...
  21. N

    Arlo's power stage Leaf controller runs and drives page 103

    cool.
  22. N

    Cooling fans inside Hub motors

    nice :) you feel anything any extra torque or pulling power after adding this cooler to motor ?
  23. N

    Cooling fans inside Hub motors

    what happen if we cross the water area or river ? will it give shock.
  24. N

    very small generator

    any hybrid bikes development ?
  25. N

    World Record Hoverboard Flight

    an specification about motor rating ?
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