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  1. Sharkboat

    What Textbooks Or Experimental Equipment Should I Buy....

    http://www.wiley.com//legacy/wileychi/electricvehicle2e/ I read the first edition of this book, and it was amazing. I would HIGHLY recommend it. The first edition of the book can be found for free online, but i would recommend buying the new edition.
  2. Sharkboat

    Two crazy new builds coming up.........

    Any news? pictures?
  3. Sharkboat

    internal optical sensors with 4T wye Astro 3220

    Awesome, can't wait to try this! Right now I have more ideas than money. Hopefully that will all change.
  4. Sharkboat

    Becoming Professional

    Got a job as a machinist today. Not as high paying as most engineering jobs, but at least I'll be doing something interesting.
  5. Sharkboat

    modeling a battery

    page 56
  6. Sharkboat

    modeling a battery

    In this book, ftp://myebooks.dyndns.org/physics/energy/Electric%20Vehicle%20Technology%20Explained%20(2003).pdf it gives an equation used to model the open circuit voltage of a NiCad battery. I would like to make a graph similar to this one: http://www.thunderpowerrc.com/html/extreme-V2.html...
  7. Sharkboat

    Help needed!

    I just found a great textbook about electric vehicle technology. It's the first edition, the 2nd just came out and is probably even better. It's called Electric Vehicle Technology Explained. ftp://myebooks.dyndns.org/physics/energy/Electric%20Vehicle%20Technology%20Explained%20(2003).pdf The pdf...
  8. Sharkboat

    Sustainable Vehicle

    beautiful day out in Binghamton for once! Showing off "light weight" design. Havent gotten a chance to weigh it yet, but it feels like its about 45-50lbs. Still needs a lot of work.
  9. Sharkboat

    motor cooling

    I was thinking about what point of the vehicle would be the weakest link when increasing power. I think first, my battery capacity is way too small to supply that much power for any great length of time. Second, I will fry my 2 stock front disk breaks. After that, who knows. The motor temps...
  10. Sharkboat

    motor cooling

    started reading a lot about water cooling. There is tons of info out there. The only commercial product for RC cars that i could find was tcs http://www.tcscooling.com/order.html It is really small and probably couldn't handle very much heat at all. The design isn't perfect and there is not...
  11. Sharkboat

    motor cooling

    I have only just begun to drive my trike and i decided it needs more power. I started looking into additional cooling. It is a astro 3220 with a fan and open case. The Davinci Drive is aluminum and also absorbes and dissipates heat. So far i have only been running low power, 1000W and the motor...
  12. Sharkboat

    Sustainable Vehicle

    Hey pdf, I agree, my vehicle is not very practical because it is not road legal. I know the risks involved in driving it on the road. I have put a lot of thought into the P3 project, and have been asking every younger engineer i know if they would be interested in being involved. If i was to...
  13. Sharkboat

    Can you spot what's missing on my bike?

    Would it be possible to get this registered as a motorcycle for street use? In NY, i think it would need DOT approved wheels and VIN numbers for most parts. 2 motors is F'in crazy. I hope to one day be as insane as you.
  14. Sharkboat

    Sustainable Vehicle

    Roll cage is complete, just needs to be put on the vehicle. Fairing is not done. The fairing will cover all of the wires, and electronics. There is a picture of me using the cheap accucell 6 chargers 2 at a time with a power supply found in the lab. If anyone played the game Halo back in the...
  15. Sharkboat

    Sustainable Vehicle

    I dont have a camera with me now, but ill take some as soon as i can. Drove it home today from campus, about 5 miles. It is way faster than by car! The best part is i can park it in the senior lab for charging, right in the center of campus. Beats searching around for a parking spot. On campus...
  16. Sharkboat

    Sustainable Vehicle

    Finally got the vehicle up and running. It is so much fun. It's nasty weather here, but I'll get a video as soon as possible. The gearing is a little slow now. I might switch from a 13 tooth chromoly freewheel to a 16 tooth White Industries. I'm also considering making a custom heat sink out of...
  17. Sharkboat

    Becoming Professional

    Wow, lots of great advice. I'll take it all into consideration.
  18. Sharkboat

    Sustainable Vehicle

    I live near Albany, but I'm going to school at Binghamton University. I might be moving out to Colorado for the summer. the 3220 could go on a mountain bike after this project ends.
  19. Sharkboat

    Sustainable Vehicle

    Thanks for the advice. The wood in the picture is a mock roll cage, that will be built out of chromoly tubing. The fairing isn't shown, and will be smaller than the roll cage. The roll cage was designed for our project, because we were originally going to the human powered vehicle competition...
  20. Sharkboat

    Letting the cat out of the bag...........

    I think i figured out what's in the bag Velocraft NoCom with tail fairing, powered by a sensored, liquid cooled 4" astro flight, with a sevcon controller, and an A123 custom battery pack.
  21. Sharkboat

    Becoming Professional

    That is a great way to get noticed. I'm building something awesome right now, but not the most original. I'll have to keep thinking of ways to push the envelope.
  22. Sharkboat

    Sustainable Vehicle

    at my school, the two other automotive projects are the supermileage and mini baja. I want to get better fuel economy than the supermileage and have faster off road times than the baja. The supermileage car only got a few hundred miles to the gallon last year, so that won't be a problem. The...
  23. Sharkboat

    Sustainable Vehicle

    I can only afford 10ah at the moment, but i plan on increasing the size as much as i can. It's also a lot easier to mount only 4 batteries on the frame right now. I can't wait to take this thing off-roading, hit a few jumps, and get some nice video. Unfortunately e-bikes are illegal in new...
  24. Sharkboat

    Becoming Professional

    I am going to be graduating in May with a Bachelors in Mechanical Engineering. I know that there are a few members on this forum that are professionals in the e-bike/motorcycle industry. Electric vehicles are my passion and I would like to pursue it as a career. What would you suggest for ways...
  25. Sharkboat

    Sustainable Vehicle

    The batteries arrived today :) The chargers will take a few more days because they are being shipped over seas. I bought 2 really cheap battery chargers that I plan on upgrading later on. I'm almost done with the aerodynamic design aspect. I am going to do all the research needed to wire up...
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