G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Forum » Quick Board » Archive through May 27, 2016 » New bike in the garage! « Previous Next »

  Thread Last Poster Posts Pages Last Post
Archive through April 26, 2016Jaimec30 04-26-16  01:12 pm
         

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Ducley
Posted on Tuesday, April 26, 2016 - 03:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Try this...

Capacitor Batteries for cars...

https://www.youtube.com/watch?v=z3x_kYq3mHM

There are others...
Top of pagePrevious messageNext messageBottom of page Link to this message

Reepicheep
Posted on Tuesday, April 26, 2016 - 05:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Those are cool capacitors, and they would solve the "current dump" problem, but they don't solve the capacity or cost problem.

The math is, well, complicated. But I think I got it right below...

But basically one of those $11 super capacitors can sort of act like a .2 amp hour battery. For comparison, a AA sized lithium ion battery is a 3 amp hour battery and sells for about $1.50. So for power density, I can get 15 times more power stored for 1/7th of the money in about 1/4 of the space.

But that capacitor can dump massive current (250 amps), where that AA battery is limited to maybe 5 amps.

So the caps would be a nice short term "dump power" device. Maybe charge them with regenerative braking, then use them to charge the batteries more slowly. And do that backwards for a short "turbo" mode acceleration.

They might be nice for a hybrid, but dang, would the costs add up.
Top of pagePrevious messageNext messageBottom of page Link to this message

Reepicheep
Posted on Tuesday, April 26, 2016 - 05:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

(all of that to say, getting back on topic, that Zero has done an amazing job cracking a really hard nut. Kudo's to them!)
Top of pagePrevious messageNext messageBottom of page Link to this message

Jaimec
Posted on Wednesday, April 27, 2016 - 03:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I would HATE to break with "tradition." Since I have a new bike, I had to head down to the local Hooters and snap this shot:
Top of pagePrevious messageNext messageBottom of page Link to this message

Hootowl
Posted on Wednesday, April 27, 2016 - 03:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"AA battery is limited to maybe 5 amps."

Wow. I didn't think they were capable of that.
Top of pagePrevious messageNext messageBottom of page Link to this message

Hootowl
Posted on Wednesday, April 27, 2016 - 03:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"Maybe charge them with regenerative braking"

And use the power for the stop-go transition, arguably the greatest current drain the batteries experience.
Top of pagePrevious messageNext messageBottom of page Link to this message

Reepicheep
Posted on Wednesday, April 27, 2016 - 03:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sorry, my bad, I meant that lithium ion battery that comes in a AA form factor. Great little things for hacking, chargers and batteries cheap on ebay. Handy to retrofit projects also.
Top of pagePrevious messageNext messageBottom of page Link to this message

Hootowl
Posted on Wednesday, April 27, 2016 - 04:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I knew that's what you meant. I didn't know they went up that high. I guess I assumed they were similar to a standard battery. Not sure why I thought that. Those do about an eighth of an amp, so 5 amps is...wow.
Top of pagePrevious messageNext messageBottom of page Link to this message

Robertl
Posted on Thursday, April 28, 2016 - 09:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Great to see Jamiec out enjoying his new bike and the bonus scenery.

Here's a review on the FX which has swappable batteries, while expensive, could provide a nice day of trail riding:
http://motorcycles.about.com/od/electricmotorcycle reviews/ss/2016-Zero-Motorcycles-FXS-Review.htm#sh owall
Top of pagePrevious messageNext messageBottom of page Link to this message

Jaimec
Posted on Thursday, April 28, 2016 - 12:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I think "Swappable Batteries" are the most practical solution to enable true long-distance touring. Maybe like the way people exchange propane tanks now... pull into a station, swap out your depleted battery for a new one, pay a "Service Charge" and head out on your way. That really is the only way (with current technology) to make electric bikes and cars as practical as ICE vehicles.
Top of pagePrevious messageNext messageBottom of page Link to this message

Glitch
Posted on Thursday, April 28, 2016 - 01:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So what's it like making so little noise?
Do you catch yourself making motor noises during your commute?
I need to know, you know, the relevant questions.
Nice bike Jaime!

I'd like to try that FXS, fitted with knobbies, that'd be fun in the woods!
Top of pagePrevious messageNext messageBottom of page Link to this message

Jaimec
Posted on Thursday, April 28, 2016 - 06:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Right now, the only REAL problem I have is finding myself going a **** of a lot faster than I think, because I don't have the engine sound or vibration to provide additional sensory clues. I'm going to get into trouble with this thing...
Top of pagePrevious messageNext messageBottom of page Link to this message

Josequinones
Posted on Thursday, April 28, 2016 - 07:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That's been my experience also, you have no sense of speed, other than the fact that everyone around you is now a small thing in your mirrors.

You will hear new noises that you don't normally hear because of the lack of engine noise. The belt, the brakes the suspension sounds suddenly become noticeable. The motor makes a noise, more of a hum, but barely.

(Message edited by Josequinones on April 28, 2016)
Top of pagePrevious messageNext messageBottom of page Link to this message

Josequinones
Posted on Thursday, April 28, 2016 - 07:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Top of pagePrevious messageNext messageBottom of page Link to this message

Froggy
Posted on Thursday, April 28, 2016 - 07:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)


quote:

You will hear new noises that you don't normally hear because of the lack of engine noise.




I saw a video of electric bikes on a track a few years back, it was great, you could hear the knee pucks scraping
Top of pagePrevious messageNext messageBottom of page Link to this message

Froggy
Posted on Thursday, April 28, 2016 - 07:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Top of pagePrevious messageNext messageBottom of page Link to this message

Jaimec
Posted on Thursday, April 28, 2016 - 10:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

We saw the Electric TT at Indianapolis a couple of years back. The announcers were saying one of the things the racers liked about the bikes is that they didn't need to look at their pit boards or the Jumbotrons... they could hear the announcers describing where their competitors were on the track at all times!

It was also the only race I watched all weekend that didn't require me to wear earplugs.
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a public posting area. Enter your username and password if you have an account. Otherwise, enter your full name as your username and leave the password blank. Your e-mail address is optional.
Password:
E-mail:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration