Power in Flux

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Functional Artist replied to the thread Aerial Ace.
" He He Check out the Ariel "Razor"

https://www.ebay.com/itm/352476863429

It's just a "toy" but, the designer definitely had the Ariel Ace in mind. "

2 Hours Ago

Functional Artist replied to the thread Questions about proper accessory components for a 60V system.
"
Quote Originally Posted by frodus View Post
I don't know that I'd recommend using that controller if they're truly 60V.

They're usually 12V for the forward, reverse, brake, etc. Only KSI (key on) is rated for full pack voltage.
All due respect, but I think these systems are a little different than the systems your used to working with too.

It may be like that on them thousand dollar controllers. (they may have a DC to DC voltage reducer built in, for the signals, but I don't think so)

All of signals on these small Chinese controllers are "pack voltage".

On the 24VDC YC31 speed controller, all of the outputs are 24VDC. http://www.diygokarts.com/vb/showthread.php?t=38841
So, for the brake light I wired (2) 12VDC bulbs in series.

On my 48VDC Torsk kart all of the out puts are 48VDC. http://www.diygokarts.com/vb/showthread.php?t=38905
For the brake light on this one I could have wired (4) bulbs in series, but instead I "rigged up" a voltage divider. "

6 Hours Ago

frodus replied to the thread Questions about proper accessory components for a 60V system.
" I don't know that I'd recommend using that controller if they're truly 60V.

They're usually 12V for the forward, reverse, brake, etc. Only KSI (key on) is rated for full pack voltage. "

11 Hours Ago

Functional Artist replied to the thread Questions about proper accessory components for a 60V system.
" Thanks for the suggestions guys, but I think this system is a little different than the ones your used to.

A 60V to 12V DC to DC convertor is/could be usable, to reduce the voltage, for the (after the fact) accessories. (horn, lights etc.)

I am talking about the actual 60VDC signals, coming out of the controller.

Here are some examples:

The sixth plug in the wiring diagram, labeled "reverse" is where a (normally) off/(momentarily) on switch is to be attached.
When activated (closed) the speed controller reverses the direction, of rotation, of the motor. (60VDC @ ?mA)

The seventh plug, labeled "lock" is where a simple on/off switch is to be connected.
When switched on (closed) it (enables) turns the speed controller on. (60VDC @ ~150mA)

The eight plug, labeled "brake" is where the brake lever/pedal activated switch is to be connected. (60VDC @ ?mA)
When activated/switched (closed) it tells the speed controller to turn off/"kill" the power to the motor
...& tells the speed controller to activate the brake light too. (60VDC @ ~1A)

The tenth plug, labeled "3-speed" is where an on/off/on switch is to be connected.
When switched to the (1st) "on" position, the speed controller operates at "low" speed.
When in the "off" position the speed controller operates at (default mode) "medium" speed.
When switched to the (2nd) "on" position the speed controller operates at "high" speed.

* There is a better pic of the wiring diagram on the eBay ad.
https://www.ebay.com/itm/163370758805 "

12 Hours Ago

furyphoto replied to the thread Questions about proper accessory components for a 60V system.
" You can get non isolated ground dc-dc converters pretty inexpensively from offshore websites. This means your ground wire (and probably frame) will be connected to the 60v battery pack, and a short will run the whole voltage through your system. The victor ones Steve mentioned are isolated so if you accidentally short your main 60v power to say the frame with a wrench when tightening the battery contacts, you won't get a 60v dc shock.
I think I have a few Vicor units around that might fit your range, I have trimmed the voltage before and passed them on for 100 bucks.
Lots of budget builds us non isolated ones though, you just have to be quite a bit more careful to avoid a short. "

14 Hours Ago

Stevo replied to the thread Questions about proper accessory components for a 60V system.
" Use a dc-dc step down from 60 to 12 v to run your lights, horn and controller on-off circuit. Vicor makes very small units and are very reliable, but a little pricey. I see them on ebay occasionally at a decent price though. "

15 Hours Ago

Functional Artist replied to the thread Questions about proper accessory components for a 60V system.
" What could/should I use for switches for the "small" power systems?

Like for sending "signals" (ie. brake light switch, or for turning the speed controller on & off)

It's still high voltage (in this situation 60VDC)
...but, a lot lower amperage (~200mA - 1A) less then 5A, for sure.

* I looked for 60VDC - 72VDC relays, without much luck. "

15 Hours Ago

Functional Artist replied to the thread Questions about proper accessory components for a 60V system.
"
Quote Originally Posted by frodus View Post
ANN and CNN are just different brand's version of a similar fuse style that meet your voltage requirement.
Kool, thanks.
I couldn't find much difference, other than price. "

16 Hours Ago

Lunchbag replied to the thread Charging Bullet - Royal Enfield conversion.
" Thanks Nicman, I hope things are going well in Jax and I'm happy every time I hear someone has made use of the site. The RE has done great generally. I still have never had to re-balance the Leaf cells. However I recently experienced some incidents of no response to throttle. This has been hard to duplicate and usually disappears after cycling power, or the problem goes away for reasons I don't understand. So I need to invest a little time troubleshooting. I suppose it is in the throttle, wiring or controller. "

1 Day Ago

Richard230 replied to the thread Engine destroyed after 18000 kilometers.
"
Quote Originally Posted by V75011 View Post
Thanks. it this the following issue ?

Safety Issue Type: Recalls
March 12 2014 NHTSA Campaign Number: 14V119000
Rear Wheel may Lockup
If the rotor contacts the stator, the motor could seize, locking up the rear wheel which could
increase the risk of a crash.
NHTSA Campaign Number 14V119000

My model is a Zero 2013. It seems different from this one, and I know that other users have been affected...

V
Yes, that is the recall that I am aware of. It covered my 2014 S, but I don't know if it also covers your model. If not, you will need to ask your dealer to contact Zero and see what they have to say. What happened to you sounds exactly what the recall was supposed to address. "

1 Day Ago

V75011 replied to the thread Engine destroyed after 18000 kilometers.
" Thanks. it this the following issue ?

Safety Issue Type: Recalls
March 12 2014 NHTSA Campaign Number: 14V119000
Rear Wheel may Lockup
If the rotor contacts the stator, the motor could seize, locking up the rear wheel which could
increase the risk of a crash.
NHTSA Campaign Number 14V119000

My model is a Zero 2013. It seems different from this one, and I know that other users have been affected...

V "

1 Day Ago

V75011 clicked Likes for this post: Engine destroyed after 18000 kilometers by Richard230

1 Day Ago

Ted Dillard replied to the thread Electric Harley?.
" Pretty much the entire debacle called "Harley Davidson" post about 1966 can be summed up in this comment:

“'We’re in the fashion business,' Willie Davidson, the grandson of Harley co-founder William A. Davidson told People in 1981." "

1 Day Ago

Ted Dillard created the thread ElMoto Member (?) Makes the News (tows boat with mobility scooter).
" This guy HAS to be one of our members, right? ('cept he's running lead - if he was ElMoto he'd be running the lithium!)

https://www.facebook.com/nbntelevisi...9824718177887/

Story here: https://www.9news.com.au/2018/11/14/...?app=applenews

"He was allegedly using the scooter as a mode of transport since his driving license was disqualified on a separate matter." I KNOW! A SHOCKER, right? "

1 Day Ago

Richard230 replied to the thread Electric Harley?.
" Here is a link to a long, interesting and informative history article about the Motor Company: https://jalopnik.com/how-harley-davi...-it-1830332227

But if you want to read the author's speculation regarding the future of the LiveWire you will need to go to the very end of his blog. "

2 Days Ago

frodus replied to the thread Questions about proper accessory components for a 60V system.
" ANN and CNN are just different brand's version of a similar fuse style that meet your voltage requirement. "

2 Days Ago

Functional Artist replied to the thread Questions about proper accessory components for a 60V system.
"
Quote Originally Posted by frodus View Post
Yeah, that fuse is essentially the CNN or ANN style fuse I was talking about.

ANN:
https://www.allfuses.com/all-product...anufacturer=29

CNN:
https://www.allfuses.com/all-product...anufacturer=31

That switch is good for 16A. Don't use it to put pack voltage to the controller. That needs a larger switch. That switch might be good for the enable signal (if the controller even has that). DO NOT use it on the B+ wires to the controller, that 16A fuse won't take it for long. Needs to be rated for your 35A rating of the controller.
The 80VDC 16A switch will be only be used to turn the speed controller on & off. (probably like, 60V & ~150mA)

We will not be running the "full current" (60VDC & ~35A) that's going to the motor" thru it. (Sorry, I guess I wasn't clear enough)

It looks like I will also need a couple of other 60VDC compatible switches.

We need an on/off/on switch to operate the (3) speed function, maybe like this: (~$13.00)
https://www.mouser.com/ProductDetail...5s4NxymdJW4%3d

...& also an off/on (momentary) switch to operate the reverse function , maybe like this: (~$35.00)
https://www.mouser.com/ProductDetail...5a18puLSzRI%3d


*Could you explain the difference between an ANN fuse & A CNN fuse?...the specs don't seem to be much different. "

2 Days Ago

frodus replied to the thread Questions about proper accessory components for a 60V system.
"
Quote Originally Posted by Functional Artist View Post
Doing more research, I asked different demographics this same question.

The electronics folks mentioned:
"All components used must be rated to at least the max. expected currents and/or voltages.
A good design leaves a safety margin on top of that, e.g. >= 10 %."

So, this means for a 60VDC (nominal) system the full SLA battery voltage would be ~66.5VDC. (13.3V top charge voltage x 5 batteries = 66.5VDC)
...plus ~10% safety margin would put us in the 72VDC range.

Then, my buddy PStechPaul on DIYelectriccars found these for me:
"Here is a line of fuses designed for battery operated vehicles up to 80V, and current ratings 35-500 amps. Interrupting ratings are given for 48V and are 6 times the current rating. They are about $7 each in all current ratings."

https://www.mouser.com/datasheet/2/2...80v-523197.pdf

https://www.mouser.com/Circuit-Prote...ng%7c0&FS=True

For simple switches, I found these 72VDC 16A DPST (double pole single throw) switches (basically (2) switches in (1) unit) for ~$10.00 ea.
It can be used to turn the speed controller on/off & also an indicator light or dash (meter etc.) at the same time. (dual purpose)

https://www.mouser.com/ProductDetail...oDaAHPRVpI8%3d
Yeah, that fuse is essentially the CNN or ANN style fuse I was talking about.

ANN:
https://www.allfuses.com/all-product...anufacturer=29

CNN:
https://www.allfuses.com/all-product...anufacturer=31

That switch is good for 16A. Don't use it to put pack voltage to the controller. That needs a larger switch. That switch might be good for the enable signal (if the controller even has that). DO NOT use it on the B+ wires to the controller, that 16A fuse won't take it for long. Needs to be rated for your 35A rating of the controller. "

2 Days Ago

Richard230 created the thread Tacita T-Cruise with Adler APTC clutch.
" Perhaps Ted can explain why Tacita electric motorcycles need a "new Adler APTC clutch"? After reading this article I still remain mystified.

https://electricmotorcycles.news/tac...at-eicma-2018/ "

2 Days Ago