Power in Flux

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Type: Posts; User: Athlon

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  1. Replies
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    both motor are way too small to move a Transalp ,...

    both motor are way too small to move a Transalp , I think the best option is to look for a borken Zero DS and use the whole Zero powertrain ( Battery, motor controller and electronic)
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    200V is a troublesome voltage , Mosfet can go up...

    200V is a troublesome voltage , Mosfet can go up to 150V but no more , IGBT can be good up to 450V but are less efficient at lower voltage , so at 200V you will have to use an IGBT controller outside...
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    is a Sevcon DC/DC the connector is some kind of...

    is a Sevcon DC/DC the connector is some kind of Molex or something don't know the normal code but maybe you can look in the DCDC spec or get one connectro and try to read what is written on it
    ...
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    probably the KV of your motor is too low and you...

    probably the KV of your motor is too low and you are able to have full torque only above a specific voltage
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    8,712

    Hugues uses an Orion BMS and top balance

    Hugues uses an Orion BMS and top balance
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    4.190 looks a little too high to me for LEaf cell...

    4.190 looks a little too high to me for LEaf cell , for greater life you should charge them at 4.180 or 4.185

    also right now some of your cell charge above the last transition voltages 4.150 ,...
  7. Thread: Voltage Vs RPM

    by Athlon
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    2,967

    the KV depends on how many turn you have in your...

    the KV depends on how many turn you have in your coil , to make the torwue you just need the total amount of current flowing inside a specific windings but is the same if you have one turn with 100A...
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    removable batteries are heavier and more...

    removable batteries are heavier and more expensive than regular one so almost every electric motorbike uses fixed battery. The small Zeros have swappable battery because are builded with rental in...
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    Good thread with tons of useful information

    Good thread with tons of useful information
  10. Replies
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    I parked my 1998 Honda Transalp in rain and snow...

    I parked my 1998 Honda Transalp in rain and snow for years without any problem , bikes are made to stay in the rain (either parked or riding) , I know that early electric bike are more "prototype"...
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    if you melt the pla you wi just get copper dust

    if you melt the pla you wi just get copper dust
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    PLA filled heatsink don't sonud good to me . ...

    PLA filled heatsink don't sonud good to me .

    Even with copper inside plastic still a very poor heat conductor,

    also I think you can end up with meted heatsink and some copper ending up inside...
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    Hello Mate :D :D I will be Observer at the...

    Hello Mate :D :D

    I will be Observer at the World Solar Challenghe , if you like to have an elmoto meeting we can meet either in Darwin ( from 8 oct to 17 oct) or in Adelaide ( from 25 to 28 oct)
  14. And now the MOST IMPORTANT part about replacing...

    And now the MOST IMPORTANT part about replacing fuses.


    WHY that fuse is blown?


    Before replacing an fuse is important to understand why and how the fuse blowed up. Fueses are safety device...
  15. With curtis if you have a 96V system you should...

    With curtis if you have a 96V system you should use 96V rated contactor , the PWM power save option is only for reduce che current , not for driving lower voltage contactor , most of the time Curtis...
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    Standard Cellog also will unbalance an 8S pack...

    Standard Cellog also will unbalance an 8S pack because they get the power from the first 6 cell , if you want to user Cellog as BMS use only 6 cell on each instruments.

    Cellog are good fro the...
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    easier and safer to just let motor and wheels...

    easier and safer to just let motor and wheels conected , electric motor don't have engine breake if the controller don't start to regen.
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    I was thinking about this chip but looks like is...

    I was thinking about this chip but looks like is not used

    http://www.toshiba.co.jp/about/press/2012_11/pr0801.htm
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    I see 12S , do you know if there is also a 14s...

    I see 12S , do you know if there is also a 14s option for the chip
  20. monitoring just one cell for LVC is not enough. ...

    monitoring just one cell for LVC is not enough. The weakest cell is not always the same , for sure you can find 4-5 cel that are below the average of the pack , but probably one wil be the weakest...
  21. parallel charging is a very good way to do...

    parallel charging is a very good way to do balancing but is time consuming. I generally when get new cell first charge in series up to 90% , then switch to parallel and finish the latest 10%. Doing...
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    is a normal issue of brushed controller , when...

    is a normal issue of brushed controller , when you ask "half" but the motor is spinning more than "half" what you get is a bike slowing down instead of speeding up. You only get acceleration if the...
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    on brake is used only in racing because for...

    on brake is used only in racing because for safety reason bake of road legal car cannot change performace over time
    You can see a lot of steam coming out from the fron wheel in truck racing

    I...
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    BTW , i'm almost done with some PM motors for the...

    BTW , i'm almost done with some PM motors for the new Curtis E with PM firmware power size will be 25 -35- 44kw continous S1
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    since your porblem are the mountain I still think...

    since your porblem are the mountain I still think that a small hiddend distilled water spry evaporative coling can really solve your problem.
    Water evaporation can really take away huge amount of...
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