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Messages - Jaredrk2

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General Discussion / Newbie help!

« on: October 07, 2012, 08:42:20 AM »

Ok here it goes, I am building an electric motorcycle to commute to and from work only. It is 8 miles to work and 8 miles home total of 16 miles but ill shoot for 30 miles to be safe. Here is what I am looking for. I want to have a top speed of 60 mph, but will cruise at 45 most of the time. I want ACCELERATION! As long as I can do my 16 mile to and from work on one charge I will be happy. But I want to feel that acceleration on that electric motor. all of my driving is on flat land, no hills. So here are my questions:

1) what dc electric motor would best suit my needs and what peak amp draw? (Series wound, pernamant magnet, brushless) I will not be using ac bc of cost.

2) I know batteries vary a lot(i will be using some type of lithium) so what voltage should my system run, and how many ah will I need?

Any and all input would be greatly appreciated.

Thanks, Jared

General Discussion / Re: Buell Blast donor bike

« on: October 04, 2012, 11:35:05 AM »

Just a heads up the rear swing arm mounts to the rear of the tranny case you will have to fab a plate to hold the swing arm.

General Discussion / Re: Series, parallel, or series-parallel?

« on: October 03, 2012, 09:12:02 AM »

Ya it makes sense. Can I combine 6v with high amp hours in parallel then 12v in series to get the voltage required?

General Discussion / Schottky Diode

« on: October 02, 2012, 07:55:47 AM »

When I was playing with r/c cars there was a Schottky Diode between the positive and negative terminal an the electric motor. It was used to prevent back flow of current to the esc. Does anyone use these on electric motorcycles? Any thoughts?

Jared

General Discussion / Series, parallel, or series-parallel?

« on: October 02, 2012, 07:32:10 AM »

I am building a 05 buell electric motorcycle and have a battery question. What is the most common to use for wiring? I see the advantages do both series and parallel, but I have not heard of anyone wiring a series-parallel circuit. Is there a reason for this? Any and all input would be greatly appreciated!

Jared