edin Posted January 31, 2014 Report Share Posted January 31, 2014 Hey folks, I want to get some more eyes on the EV racing program that I head up at school. We're a small operation of about ten students that has been working for the past fifteen months to build a single-seat, open-wheel electric race car from scratch. Our main competition is the Formula Hybrid Competition beginning April 28, 2014 at the New Hampshire Motor Speedway. The past few years of Formula Hybrid have been somewhat lacking, but we hope that there is good competition this year and that more teams show up. I'm not yet convinced that EVs have a role in the mainstream vehicle market, but there is certainly something to be said about EVs in terms of racing. Here are some preliminary specs for this year's car: Fully custom space-frame 4130 chassis Weight (w/o driver): 700 lbs (est.) Power: 60kW peak Torque: 800 Nm at wheels (est.) Voltage: 300V max, 263V nominal Max Current: 200A Please ask questions, I'm happy to share details. This is our website, and like our Facebook page! Cheers, Eric http://www.dartmouth.edu/~dfr/ http://www.facebook.com/Dartmouthformularacing Quote Link to comment
edin Posted April 8, 2014 Author Report Share Posted April 8, 2014 Wanted to toss out another plug for Dartmouth Formula Racing. The car is finally coming together this week, and we hope to be testing it on the ground by Monday. Check out the Facebook page! https://www.facebook.com/Dartmouthformularacing 1 Quote Link to comment
Mattndew76 Posted April 9, 2014 Report Share Posted April 9, 2014 Sweet stuff man.. This is the same type of program at OSU I want to take part in. 1 Quote Link to comment
defdes Posted April 9, 2014 Report Share Posted April 9, 2014 Looks great...and you're local to me too. What are the circuits that you'll be competing on...NH Speedway? We might need to plan a Summer drive down to see Dave at FutoFab in Dunbarton. Quote Link to comment
edin Posted April 9, 2014 Author Report Share Posted April 9, 2014 We'll be at the NH Motor Speedway on April 28-May 1 (28/29 are inspection days, 30/1 are race days). We're also planning on doing the Ascutney hill climb and some other local SCCNH events. I just visited Dave a couple weekends ago to pick up a dogleg for my wagon. Haven't had time to put it in yet... this project takes up all waking hours and it's so wet outside. Quote Link to comment
carterb Posted April 9, 2014 Report Share Posted April 9, 2014 Great job for taking on the challenge. I was part of the UW Formula SAE team in 94/95. It was definately the highlight of my college career. I have little doubt you will say the same thing about your Fourmula Hybrid experience. Good luck in your competition(s)! What drove you to mount your shocks so high? You usually want the weight as low as possible, both in location and quantity. Just curious what went into that decision. Quote Link to comment
edin Posted April 9, 2014 Author Report Share Posted April 9, 2014 Great job for taking on the challenge. I was part of the UW Formula SAE team in 94/95. It was definately the highlight of my college career. I have little doubt you will say the same thing about your Fourmula Hybrid experience. Good luck in your competition(s)! What drove you to mount your shocks so high? You usually want the weight as low as possible, both in location and quantity. Just curious what went into that decision. Yep good question. It's not something I necessarily agree with but I've spent the majority of my time on the electrical system and wasn't a big voice in the suspension/chassis design reviews. They require the pushrods to be rather long which increases the chances of buckling. From what I understand, though, I think there was some binding/interference issues that were unforseen in chassis design that came up later in suspension design and this is where they ended up. I know that justifying suspension decisions from chassis decisions is a bit backwards, but limited time, knowledge, skills at the beginning of the project had a huge impact here. We've learned a lot. Quote Link to comment
RTB Posted April 9, 2014 Report Share Posted April 9, 2014 Could have possibly done a pull rod instead. That will especially bring the height down in the front and make it tighter. Quote Link to comment
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