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  1. gwhy!1

    its now a e-motorcycle

    it turned out well :-) and a very good learning experience, I still have the bike but dont ride much at all these days as I dont really have the transport to take it somewhere to ride so now i just use a pushbike setup for playing with :-) as it fits on the back seat of my car with the front...
  2. gwhy!1

    Hall Hidden Brake Sensor used as Throttle (?)

    it could work if its a linear ratiometric sensor that is sprung loaded to return back to zero output. There is not enough information to say if it will work or not.
  3. gwhy!1

    Gyro for controlled Wheelies

    just thinking about it logically torque mode would be better
  4. gwhy!1

    Wanted...Twist throttle with regen braking included

    you could use a couple of my throttle boxes and a push/pull mc throttle .. maybe :!:
  5. gwhy!1

    Could use some advice on paralleling two controllers.

    I have never seen this in a working setup and have my doubts if it will work reliably or even work at all .. but the black wires would need to be connected together but only use one 5v supply from just one controller..
  6. gwhy!1

    Could use some advice on paralleling two controllers.

    so you have 6 phase wires from the motor ? and 2 sets of hall sensors in the motor ? edit or 3 phase wires from motor and 1 set of halls
  7. gwhy!1

    Fried Controller - IRFB3006 Rebuild?

    why would you put 100V caps into a controller that will only be able to take around 50V max if you use 3006's ? what fets did it have in it originally?
  8. gwhy!1

    Mystery solved: Why so many new 'cycles crashed - new tires!

    Yes different for any offroad stuff, as you rely on sharp edges on the knobbles for the grip.
  9. gwhy!1

    Mystery solved: Why so many new 'cycles crashed - new tires!

    Here you go, this article explains why new tyres can have less grip than worn in/scrubbed tyres. http://motorbikewriter.com/break-new-set-motorcycle-tyres/
  10. gwhy!1

    low voltage cut off

    most controllers have a ignition wire that uses a very low current to turn the controller on and off so nearly anything can be used to switch it on or off, when the controller is off the lv side of the controller circuit is not powered so there should be no main current flowing as all the fets...
  11. gwhy!1

    low voltage cut off

    you could use a lv alarm and invert the output to turn off a small latching relay in the ignition wire of the controller.. Edit: push button to turn bike on and lv alarm to unlatch the relay
  12. gwhy!1

    lyen mk2 settings

    You should use the xpd programmer instead of the lyen software , it gives much more adjust ability ( 2A steps ), there is also a lyen profile that you can use within the software, its a shame you modded the shunt before trying the xpd software .. the thread is here...
  13. gwhy!1

    lyen mk2 settings

    you need to be careful and think about the settings you have chosen, a 18fet will only be reliable upto around 225A and this dont matter what current the fets are rated at .. this 225A also comes into play with the phase current limit ... so if you have followed the rule of thumb guides i.e...
  14. gwhy!1

    Connecting 2 x 48V 15Ah kettle battery packs in parallel

    just make sure that both batterys voltages are within a volt each other before you join them up.. you dont want to connect a flat battery in P with a fully charged battery that would not be a good idea :shock:
  15. gwhy!1

    Controller reliability? help

    thats ok.. I sort of guessed that what may of happend , but i had to re-read my post about 3 or 4 times just incase I did do a typo :mrgreen:
  16. gwhy!1

    Controller reliability? help

    sorry dont see your point ? VI=W Didnt I type 10v @ 10A = 100W .. 1v @ 100A still = 100W 10x10=100 is the same as 1x100=100 :!: but it looks like you are getting the hang of how to use a calculator because what you typed is also correct 100V x 10A = 1000W .. so you must be...
  17. gwhy!1

    Controller reliability? help

    Im not recomending pushing 7kw though a 12fet :mrgreen: but 2-3kw should be fine and still bullet proof .. like i said eariler in this thread watts is watts and watts is a combination of volts and amps .. 10A @ 10v = 100W .. 1A @ 100v still = 100W ...
  18. gwhy!1

    New Batteries, Low Milage

    if your sla's are 10ah and your bike pulls 10A when on the flat then you would be only looking at a usable capacity of around 5ah this would be with a good sla battery .. so if its a bad one this would be a lot less, the smaller sla's only have a C rating of around 0.5C and this should give you...
  19. gwhy!1

    Controller reliability? help

    Thats on a indoor race track so no where near that cold .. and it dont get that cold here anyway -50F !! maybe average temps in the summer of around 60-70F...yes you are about right at the run times thou ..
  20. gwhy!1

    Controller reliability? help

    Im sorry only only read the first line.. then realised you don't really understand about modern tech... All my high powered setups are 12fet controllers running at around 6-7kw and for some of my applications this will be for maybe 70% of the running time and I have never burnt a controller up...
  21. gwhy!1

    Controller reliability? help

    yes a ftdi serial converter should do the job... you can get what people call a false positive with the wire combos so the only true way to see if you have a good wire combo is to test the no-load current at WOT and for a 'run of the mill' hub it should be definitely no more than 2A ( prob...
  22. gwhy!1

    Controller reliability? help

    ok if you think is BS thats fine... I dont have anything to prove to you, a current limit is what it is and there is no getting away from that. If a controller dont limit the current then it a rubbish controller , if it says 20A ..30A..40A it dont matter as this is what it will limit it at and...
  23. gwhy!1

    Controller reliability? help

    ok just agree to disagree... That depends on the controllers that you have had and watt firmware they are running and not how they are made.. default infineon controllers are programmed to over shoot ( i always turn this off ) but once running they limit the current to the spec of the...
  24. gwhy!1

    Help & Advice with Batteries

    I use 12s HK lipo ...
  25. gwhy!1

    Controller reliability? help

    Sorry dont agree with this watts is watts it should not matter .. if its rated at 1000W then thats what it should be able to do @ what ever the voltage rating is of the said controller A 50A@ 100v is not a 1000W controller, the only thing that you should watch is the temp of the controller.
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