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  1. team_EMUS

    2x Curtis 1231C Series motor drive

    We've done some clean up lately and found brand new 1231C drives we forgot about. If anyone is interested in having these please let us know. The sale will fund our motorcycle project. We also found LMC (agni like) motors in poor shape. These might not be working but could maybe be useful to...
  2. team_EMUS

    214HP e-motorcycle built from scratch!

    We finally received the EMRAX268 motor! Now we'll focus on fixing the EMI issues on the harness. The plan to do a few dyno runs in june and plan on running the bike on track in July. Cant't wait to make it run!
  3. team_EMUS

    Konion Makita LiMn battery care and feeding by Doctorbass

    Indeed! Thanks Doc!
  4. team_EMUS

    Grinhilia - my Aprilia RS125 Conversion

    Was the project ever finished?
  5. team_EMUS

    welding 18650 cells with DN-5 spot welder

    Has anyone ever tried connecting the cells without welding them? Has anyone ever tried to disassemble welded cells? I mean, totally remove the tabs fro the cells
  6. team_EMUS

    Konion Makita LiMn battery care and feeding by Doctorbass

    The time we spend designing for the US18650V is not going to be wasted, as we are going to keep in mind that the cells could be swapped for LG or Samsung cells in the future. Modularity and standardization are key!
  7. team_EMUS

    214HP e-motorcycle built from scratch!

    Here's more info on the project: http://insideevs.com/universite-de-sherbrooke-quebec-unveils-monocoque-electric-superbike/
  8. team_EMUS

    jonescg's NEW electric racebike BUILD thread!

    Great bike! I love that you did your own chassis as well! Perhaps we can race together one of these days! Cheers mate!
  9. team_EMUS

    214HP e-motorcycle built from scratch!

    It's just a general principle... Of course the copper conductors are not going to catch fire if dimensionned porperly... The cells are the problem. If you respect the current limit of your cells and cool your battery properly, it shouldn't catch fire. However to avoid thermal runnaway a proprer...
  10. team_EMUS

    214HP e-motorcycle built from scratch!

    We run a 700V motor, thats how it is... Now, regarding the HV vs HA, there is another thread just on that topic. http://endless-sphere.com/forums/viewtopic.php?f=30&t=67455
  11. team_EMUS

    214HP e-motorcycle built from scratch!

    We have cosidered that issue and that is why we asked Doctorbass for help on cell matching ant testing. Anyways now, we are moving toward 18650s, Great folks! Great products! The electrical design is 100% safe and has more ways to make the bike not work than it has to make it run! On the other...
  12. team_EMUS

    214HP e-motorcycle built from scratch!

    Hell yeah! Indeed! Thanks! We have about 3kWh right now, wich is enough to do the tests and debug the EMI but not enough to actally ride it in a race... But like I said, we are looking at a new design using cheaper, better, more available cells. The HK configuration is 162S3P The stock...
  13. team_EMUS

    214HP e-motorcycle built from scratch!

    You are totally right, we have made some choices we have to live with from now on... Luckily for us these are not so bad ! The key issue right now is batteries. We are indeed moving towards better cells. That is equally true for the AC asynchronous motor and the Panasonic cells wich are not...
  14. team_EMUS

    Konion Makita LiMn battery care and feeding by Doctorbass

    Even when these cells are given fo free? We could at least verify our design and have a decent battery pack to ride with this year... Perhaps not the best, but functionnal.
  15. team_EMUS

    214HP e-motorcycle built from scratch!

    This is not a production bike. It is an insanely fast and nimble electric motorcycle. We have no plans of selling it. As you might know, electrical power equals to: P=V*I And Joules losses are given by: Pj=R*I^2 Hence, reducing the current to reduce losses and increase the voltage to...
  16. team_EMUS

    214HP e-motorcycle built from scratch!

    Our scope of work was mainly Mechanical and Systems engineering. The core goal of the project was to design a MOTORCYCLE, not its components. Thanks for the hint though. We might design some power electronics in the future, but so far, we are going to stick to the Rinehart PM150DZ drive. The...
  17. team_EMUS

    Konion Makita LiMn battery care and feeding by Doctorbass

    We were just given a large amount (2000) of used US18650V cells for our electric motorcycle. 8) (Project EMUS) We compared a few other cells and our optimum design would use LG ICR18650HE2 cells, but since those were given to us, we might aswell use them! Looking at the discharge curves...
  18. team_EMUS

    214HP e-motorcycle built from scratch!

    Thanks everyone for your support! It's nice to read all of your comments. Concerning the choice of batteries, we did an extensive survey of a lot of commercially available Lithium Cells. We roughly looked at 400 models. Size, weight, power and energy were the main parameters we looked at...
  19. team_EMUS

    214HP e-motorcycle built from scratch!

    The main BMS controller and BMS modules are designed specifically for this application by our electrical team. Motor and drive Since the motor would be used in a racing motorcycle, it needed to meet particular requirements like high power density, shallow form, high speed and high...
  20. team_EMUS

    214HP e-motorcycle built from scratch!

    Hey everyone on the endless-sphere forum! We are team EMUS (Electric Motorcycle of Universite de Sherbrooke), a team of mechanical, electrical and computer engineering students from Sherbrooke, Quebec in Canada! Website: http://www.emus.ca Facebook: http://www.facebook.com/Projetemus As the...
  21. team_EMUS

    214HP e-motorcycle built from scratch!

    The Université de Sherbrooke is working on an electric motorcycle A team of students from the engineering faculty have set the goal to design an all electric sports bike for 2014. The vehicle is going to be entirely designed by the student during their degree final project. A multi-disciplinary...
  22. team_EMUS

    Linear Tech 12-cell battery monitor/BMS

    Hi Method, I'm developing a cell monitor using LTC6802 as slave and using TMS320f28335 as SPI master. Now we have problem with establishing communication between the two. I can never read 0xE0 from the configuration register after I send out 0x02 read command. I read whatever I send which looks...
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