Search found 69 matches

by anpaza
Jul 23 2017 10:48am
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 594
Views: 118775

Re: XPD: open-source keywin e-bike lab replacement

New version for public testing: 0.4.1 alpha.

Download here.

New features:
* Implemented KHxxx (AKA Infineon 4) controller support.
* Implemented profile downloading (EB3xx and KH6xx)
* XPD for Android (from scratch in Java) (not finished yet, so, no test builds for now)
by anpaza
Aug 22 2016 5:18pm
Forum: E-Bike Technical
Topic: YIYUN TECH YK85 question ...
Replies: 0
Views: 576

YIYUN TECH YK85 question ...

Hello! Got one of these oldies in a chinese micro-scooter. Since I've upgraded the hub motor from geared 250W to gearless 500W, one of the goals is to enable regenerative braking. Here's a photo of the controller board: http://electrotransport.ru/ussr/images/3/14m3kqj_thumb.jpeg (click for larger im...
by anpaza
Apr 16 2016 5:52am
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Small video from there.
RPMs limited to 1000 in controller setup, because at 2000 RPM water drops reach other exhibition stands.


Startup torque with locked wheel.
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Battery current during startup with locked wheel.
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by anpaza
Apr 10 2016 5:36pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

At 14-17 April, in Monaco, the large asynchronous hub motor (the predcessor of Kolobok) will be demonstrated at the Top Marques exhibition . Who lives close to Monaco may give it a try :) Currently it's mounted into a ElMoto frame, with the Curtis-1232SE controller (48V, 350A max phase current). The...
by anpaza
Mar 09 2016 4:39pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

The bike that'll be used for testing current prototype.
Image
The thing looks really small, even in a 24" wheel.
by anpaza
Mar 07 2016 9:02am
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Some old pics :) http://electrotransport.ru/ussr/images/2/1ioe21f_thumb.jpeg Big size http://electrotransport.ru/ussr/images/2/1gzj3j6_thumb.jpeg Big size http://electrotransport.ru/ussr/images/2/zy4jpv_thumb.jpeg Big size http://electrotransport.ru/ussr/images/2/r628bb_thumb.jpeg Big size
by anpaza
Mar 07 2016 8:53am
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Some "olds" (as opposed to news, video was published about a week ago).

I took half of hour to add English subtitles.
You must click on the "Subtitles" button to see them.
by anpaza
Feb 02 2016 6:27pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Moar of it.
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looks extremely tiny for 10 kW, not speaking gearless.
We'll see...
by anpaza
Feb 01 2016 5:45pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Some update. While motor number one (body from Magic Pie I, new stator and rotor) left to Germany for testing in some labs, and the 20 kW motor is waiting for the new controller to finish, they're doing a third motor, which is more of what we call a "bike motor" :-D Stator width 55mm Spoke hole diam...
by anpaza
Nov 04 2015 7:05pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Coreless motors are low-inductance and, as such, they provide lower torque than traditional motors. To compensate for that, coreless motors are very high frequency (they don't suffer the Eddy current & other loses in core). But this means you'll have to add a two-step reductor, so you'll have both w...
by anpaza
Oct 19 2015 8:02pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Indeed, at a second sight it looks like an IPM motor.
In any case, IPM is not SRM, it's something like a mix between SPM and SRM.
Tries to take the best of two worlds.
by anpaza
Oct 16 2015 5:33pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Hey totally! I just watched that video now, https://www.youtube.com/watch?v=x3brfAEs_RY#t=307 that sure looks like SRM motor... This is a regular synchronous permanent magnet motor... at 4:00 you can see how the magnets are inserted into the rotor splices... and then at 4:15 you can see the splices...
by anpaza
Oct 15 2015 4:58pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Well, if you add permanent magnets to SRM rotor, you just turn it into PMSM ;-)
The stators in permanent-magnet synchronous motors, asynchronous motors and switched reluctance motors is absolutely the same.
by anpaza
Oct 13 2015 5:19pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

SR can have the torque and power density of PM motors. As far as motor design is concerned, it would make a great replacement for PM. Driving them well is another challenge. Driving them should be pretty easy as they are synchronous motors and you can get it working even without vector control. Per...
by anpaza
Oct 10 2015 2:19am
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

We theoretically discussed SRM hub motors on our forum, but came to conclusion that this type of electric motors will provide way smaller specific power (watts per kg). That's because the rotor in SRMs is not magnetic, it's just a piece of iron, so it does not produce any force per se. That's in con...
by anpaza
Oct 05 2015 4:45am
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

Well, if the second prototype will really deliver 20 kW that's more than a kW per kilogram (the prototype weights about 17kg). Compare to e.g. CroMo, which delivers about 10 kW weighting 11kg. High torque at low speeds is another question not yet confirmed (because Kelly doesn't work quite well yet ...
by anpaza
Oct 03 2015 3:06pm
Forum: Motor Technology
Topic: Asynchronous motors - is induction the new future?
Replies: 76
Views: 16294

Re: Asynchronous motors - is induction the new future?

What you missed to say is that this type of motor has zero coasting resistance, even less than a geared hub motor. If you run out of energy, you can use it like a regular bike minus the extra weight. And at the same time you have regeneration AKA E-ABS! That's amusingly wonderful, if you think of it...
by anpaza
Apr 18 2015 5:22am
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 594
Views: 118775

Re: XPD: open-source keywin e-bike lab replacement

I have migrated the project from Google Code which is going to be closed in August to SourceForge: https://sourceforge.net/projects/xpd-ebike/ I've fixed the first post as well, and also I've added a link to a video I made to show someone how to install XPD on Windows. The drivers issue is not cover...
by anpaza
Apr 18 2015 5:19am
Forum: E-Bike Technical
Topic: IXie Chang / Infineon boards Regen and XPD
Replies: 4
Views: 595

Re: IXie Chang / Infineon boards Regen and XPD

XPD just fills with the value you choose one of bytes in the data block sent to the controller. How the controller will handle that byte depends on the controller firmware. This setting makes difference on Infineon 2 controllers, but I'm not sure about Infineon 3. However, XPD just does the same as ...
by anpaza
Aug 08 2014 10:46am
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 594
Views: 118775

Re: XPD: open-source keywin e-bike lab replacement

IIRC there are oddly marked infineon 2 clones with different shunt values and a handlebar display connector (also you can change some parameters from this display). Perhaps, you have one of these. In any case, I think you should start trying from EB212 and then look for the actual current vs program...
by anpaza
Aug 08 2014 10:34am
Forum: E-Bike Technical
Topic: 18FET LYEN - Problem to upload new parameters - Solved
Replies: 3
Views: 872

Re: 18FET LYEN - Problem to upload new parameters - Solved

You're not supposed to change default profiles (which come with XPD and Keywin EBL), that's why the files are readonly. You're supposed to create a copy of one of the std profiles (if you really need it, usually creating a profile from scratch is not much more complex as XPD will set reasonable defa...
by anpaza
Jul 03 2014 6:18pm
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 594
Views: 118775

Re: XPD Waiting Acknowledgment

Love the XPD project, it is a shame I cannot find it at its usual spot anymore ( http://xpd.berlios.de/ seems to be dead). Luckily the files did end up on Sourceforge somehow, at least that's where I was able to find them: http://sourceforge.net/projects/xpd.berlios/files/?source=navbar . The Berli...
by anpaza
Dec 04 2013 8:57am
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 594
Views: 118775

Re: XPD: open-source keywin e-bike lab replacement

I will also post this up this is my v3 adaptor. The capacitor fixed quite a lot of issues for me when using the lead on different pc's . There was an error on this scheme. The switch should not be connected to the +5 V but the 0V. Here is the right schema: http://cyclurba.fr/forum/image/forum259445...
by anpaza
Dec 04 2013 8:40am
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 594
Views: 118775

Re: XPD: open-source keywin e-bike lab replacement

Does XPD works with EB312 controllers? How to install on a (very) old WinXP notebook? Just like on any other windows system. I want to use the RS232 serial port without using a USB-to-RS232-serial-converter. Is this possible? I know in this case I have to use a RS232-level-to-TTL-level-converter (M...
by anpaza
Dec 04 2013 8:33am
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 594
Views: 118775

Re: XPD: open-source keywin e-bike lab replacement

Thank you Andrey! I wanted to compare the output of XPD before I sent data to the controller. I installed some virtual serial ports and collected the data using debug-read-EB3xx.py. I only found one difference between the hexed software and XPD in which data[27]=3 is hard coded. The hexed programs ...