Search results

Date Relevance Most replies

  1. M

    Is my math correct?

    @serious_sam: I chose LifePo4 as a security measure (<-> less chance of it taking fire). But now I feel wrong. Right now, my controller is a generic 24mosfet HY3210 (<-> 120A) with caps rated at 100V. At the final stage, the motor will be controlled by a KLS14201-8080I...
  2. M

    Is my math correct?

    Hi, Just waiting for my motor to come by. 1) Please confirm my pack design 2) Please suggest optimizations (design/ cell technology) Hub nominal rating: 144V 120A Be X the voltage of my cells when full. Be Y their Ah when full. Be Z their max discharge amperage. I may go for LifePo4 (IFR)...
  3. M

    Man-in-the-middle'ing my controller

    Hi, I am currently coding different algorithms concerning controllers and my plan was to add a middle pcb with a processor. It avoids me to reinvent the wheel as far as controller is involved, while adding my stuff. I don't know the command/signal/voltage/current my board should send to the...
  4. M

    Change the BMS for a bigger one?

    I currently have no link for the battery since I decided to buy 38120s cells and do it myself ($). I looked around and I will wear whatever gear will protect me. Starting small (4S -> 12-14V and X amps) and as my knowledge increases, so will the volts and amps. 144V and 120A max output (and at...
  5. M

    Change the BMS for a bigger one?

    Yes there are two options: either buying a 144V 200A 18650 battery with a 200A BMS ($$$) or dying in the process of creating it, with the help/advices of an electrician.
  6. M

    Change the BMS for a bigger one?

    Yes, but 250Nm of torque which should make up for it.. I weight 84kg, the prototype will weight 50kg. Total: 134kg
  7. M

    Change the BMS for a bigger one?

    @All, I won't touch that controller, because I gathered a lot of info and the risk of collateral damage (when removing the fets) in non negligible. All in all, buying a 200A controller (probably with more than 100V) is all I need and it is not that expensive in the grand scheme of things. So I...
  8. M

    Change the BMS for a bigger one?

    Sure, http://www.qs-motor.com/product/3000w-8000w-electric-car-hub-motor273-model/
  9. M

    Change the BMS for a bigger one?

    Thanks, in the corner it is written K S1.5. Is it what you asked? It is a 24Mosfet board made of HY3210
  10. M

    Change the BMS for a bigger one?

    Hi, Can someone confirm this: On the uploaded picture, is that where I can shunt my controller? Those 5 bridges next to the blue wire. Most of the time, there is only 1 bridge. Any word of caution? => should I add tin on all of them? Thanks
  11. M

    Change the BMS for a bigger one?

    Hi, I just opened my controller. I have 100V 470µf capacitors and 24 HY3210 mosfets rated at 100V 120A. Do someone has experience with those mosfets? My controller is a chinese no-name but I am surprised it has such stronger components for what I bought. Thanks, Edit: attached is the picture...
  12. M

    Change the BMS for a bigger one?

    Thank you Jan-Erik, I will buy the bigger motor and see what happens.
  13. M

    Change the BMS for a bigger one?

    Hi, I bought a 3000W kit (72v 6500 RPM motor + 50A controller (with capacitors rated at 100V)) and a BMS 50A battery. I am contemplating the idea of increasing the power output (amps, while keeping voltage at 72) of my battery to increase the rest of the chain already. BUT, I want to make...
Back
Top