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electric bike

blackrecon117
blackrecon117 over 9 years ago

Hi all,

 

I have recently started a placement year in industry which means MONEY!! and my dream for the last two years at uni has been to make an electric motor bike , I don't mean like a full on hit the motor way 70 mph (100km ph) kind of thing and nor do i mean an electric bicycle i mean a pocket bike style thing that has maybe a max range of 10 miles or more and a make speed of like 10mph being a robotics student I have a good idea on electronics but i am never good at researching parts or any kind of mechanical engineering and am struggling with calculations and values for different lipo cells i.e what difference will voltage make to the controller and so the motor ? or what does the mAh of a battery tell me and how long will it last ?

I have come to these forums asking for help from the engineering community , anything that would help or any resources , i know there is a DIY thing bit i didnt find it super helpful at explaining in details aspects of the pocket bike. thank you very much to this great community. 

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  • shabaz
    shabaz over 9 years ago in reply to blackrecon117 +3
    Hi Andrew, For some initial battery information, check out batteryuniversity website, it has some useful information. You'll need to intimately get familiar with how cells behave, because there could be…
  • jw0752
    jw0752 over 9 years ago +2
    Hi Andrew, This is a very interesting project. Why don't you break it down and ask some specific questions that you have and see if any of us have answers for you. Your text above doesn't really pose a…
  • beacon_dave
    beacon_dave over 9 years ago in reply to shabaz +2
    And remember that it "may look complicated, but if you think about it, it is just a giant cordless drill with wheels!" KillaJoule – Eva Hakansson
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  • blackrecon117
    blackrecon117 over 9 years ago

    well the first question that i have that is probably a good starting point is what voltage should i use , I know that i am going to have to arrange some lithium cells to make a 32v or 48v and so on battery but i don't really know what the ideal voltage would be as from there i could start looking at motors and how meany cells in what arrangement i would need , thank you.

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  • jw0752
    jw0752 over 9 years ago in reply to blackrecon117

    I would investigate what voltages are being used for mobile wheel chairs and for the other commercial people movers like the hover boards. If you can find a voltage that is in commercial use you will likely find motors and other accessories available.

    John

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  • jw0752
    jw0752 over 9 years ago in reply to blackrecon117

    I would investigate what voltages are being used for mobile wheel chairs and for the other commercial people movers like the hover boards. If you can find a voltage that is in commercial use you will likely find motors and other accessories available.

    John

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