Search found 54 matches

by Bikebrap
Mar 16 2019 4:04am
Forum: Items for Sale - New
Topic: QS 7V 3000W midmotor (15-20kW peak) 690$ [EU]
Replies: 0
Views: 174

QS 7V 3000W midmotor (15-20kW peak) 690$ [EU]

Peak 15kW officially from QS and 20kW by expirience of other users of this forum (https://endless-sphere.com/forums/viewtopic.php?f=30&t=93627&start=125) - rpm: 4000 - axle for moto sprockets - with hall sensors - temperature sensor KTY 83-122 - sprocket #428 13T - belt pulley (needs adapter) I have...
by Bikebrap
Feb 09 2019 5:29am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Q8J8lCsx4Do I opened the motor and edge of rotor has beed grinding on the stator so this is where it lost magnetic properties. I don't know any more what happened. As I spent a lot of time and money I bought budget motor just to get it running again QS 3000W mid drive, reported to be able to take m...
by Bikebrap
Feb 08 2019 6:25pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Q8J8lCsx4Do I opened the motor and edge of rotor has beed grinding on the stator so this is where it lost magnetic properties. I don't know any more what happened. As I spent a lot of time and money I bought budget motor just to get it running again QS 3000W mid drive, reported to be able to take m...
by Bikebrap
Dec 22 2018 3:30pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Hi, I really like your build. Could it be that you hall sensor converter was lagging behind at higher rpm? This would make the Controller apply current at the wrong time causing the Motor to overheat. I don't know if you mentioned it but what did the registration cost? It is possible if you refer t...
by Bikebrap
Dec 16 2018 4:36pm
Forum: Motor Technology
Topic: QS 3000w midmotor
Replies: 177
Views: 13401

Re: QS 3000w midmotor

what is real QS motor website ? I don't want to make a wrong payment

http://www.cnqsmotor.com/en/
http://www.qs-motor.com/
https://www.qsmotor.com/

Thanks
by Bikebrap
Nov 02 2018 1:08pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

So I did some measurements to make sure what happend. Used old controller to get exactly half throttle/half pwm (kelly has regulators n sht) and messured rpm to get KV. If rated voltage is 55V and rated rpm 6000 that gives KV of 109. (Heinzman datasheet) At 50% PMW or 41V (82V Batt) motor spins at 9...
by Bikebrap
Oct 27 2018 6:34am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Motor overheated & demagnetised. So now that I added a heatsink, contoller was no longer cutting down power. So after a long non-stop ride with regenerative braking enabled the motor overheated and demagnetized. I was riding at constant speed, not too aggresive, around 3/4 throttle. So I suspect tha...
by Bikebrap
Oct 22 2018 11:33am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Did some "wannabe" aesthetic touch up :P Need to remove that bulky instrument cluster and mount headlamp on forks, it is now fixed on chassis. And added a heatsing to kelly controller, will add a fan too but it doesn't look like it needs it :) also burst 300A is definned only by "10 seconds". It doe...
by Bikebrap
Oct 22 2018 11:24am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Arlo1 wrote:
Oct 18 2018 9:01pm
Nice work. Where did you get the rear sprocket machined at and what did it cost?
I constructed it in solidworks and sent .dxf to my friend who has all kinds of machines soo.. yeah... paid around 100$ if I remember correctly, together with battery boxes.. for material only
by Bikebrap
Oct 17 2018 9:26am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

I too now that Kelly controllers like yours does not have good torque from stand still when used with hubs. Looks like it has similar effect on mid drives too, nevertheless it is less noticeable in mid drives due reduction. I managed to enhance throttle response by setting Kp and Ky relly high. Bec...
by Bikebrap
Oct 17 2018 9:18am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Kelly controler test
Kp set ultra high
by Bikebrap
Oct 06 2018 2:13am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Kelly is mounted on the bike. Motor has sin/cos resolver so I had to make my own hall encoder. 20180928_214828.jpg 20180929_155418.jpg 20180928_224812.jpg 20180929_233314.jpg Aligning the encoder so it is in phase with the motor phases. Kelly had no torque at low rpm and slow response even with all ...
by Bikebrap
Oct 06 2018 1:52am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Didn't have time to update this before so here it is. Took out batteries from my bicycle. They were welded in three packs when I bought them. I disassembled everyhing, ripped appart all the welds from tabs and sanded them a bit for easier welding afterwards. 20180620_164841.jpg 20180711_130058.jpg 2...
by Bikebrap
Sep 12 2018 10:05am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Kelly KLS-7230S just arrived. 72V 300A burst gonna put huge ass heat sink on it (btw my phase wires melted and shorted out on old controller. Controller is stil alive :) It had both side covers oppened and fan blowing air trough. That is why I finally ordered kelly) aaand.... it's a sine wave so eve...
by Bikebrap
Jun 14 2018 6:57am
Forum: Items for Sale - Used
Topic: Sevcon Gen4 Size2 72V 125€ [EU]
Replies: 6
Views: 640

Re: Sevcon Gen4 Size2 72V 125€ [EU]

Croatia
Controller was in Zero XU 2013 , don't know which motor it has.

I bought it used, and never got the time to configure it or spin the motor, gonna buy some simpler chinese controller.
by Bikebrap
Jun 13 2018 1:16pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Yeah, was aware of small sprocket problem before bulit, but I didn't know it would be this bad. I aimed for high torque so that's why 13/90 sprockets. Belt was in plan before chain, but chain was a quicker solution. Now that I have more time and figgured out how to make huge rear belt pulley I might...
by Bikebrap
Jun 13 2018 3:37am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Also, chain is ultra loud, like 2-stroke engine loud :/
by Bikebrap
Jun 13 2018 3:36am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

I've looked into my archive. If I remember correctly than possibly motor configuration file has extension dcf. If that the case than I got PMS120.dcf. I've 7ziped it so you'll need to unzip it. I think that's the file which can be uploaded using IXXAT adapter to Sevcon controller. If you have IXXAT...
by Bikebrap
Jun 12 2018 9:24am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Cagiva Supermoto Bulid (4kW Legal)
Replies: 53
Views: 6527

Re: Cagiva Supermoto Bulid (4kW Legal)

Yaaaay I got the papers/resistration :D
reg.jpg
reg.jpg (224.5 KiB) Viewed 3361 times
by Bikebrap
Jun 09 2018 4:49am
Forum: Items for Sale - Used
Topic: Sevcon Gen4 Size2 72V 125€ [EU]
Replies: 6
Views: 640

Re: Sevcon Gen4 Size2 [EU]

72V 180A
yes it is sin/cos resolver input
by Bikebrap
Jun 07 2018 4:11pm
Forum: E-Bike Technical
Topic: $14.99 72v Sunwin Controller
Replies: 482
Views: 44586

Re: $14.99 72v Sunwin Controller

ecycler wrote:
Jan 27 2017 12:00am
Bikebrap wrote:Mine works in sensorless mode when halls get disconected
Which one did you get? Let's talk about the most powerful ones... who is pushing really big power through these things?
I got 1500W one but it is 5,5kW actually and it only gets warm.
by Bikebrap
Jun 07 2018 3:38pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: ixxat USB-to-CAN compact & Sevcon DLD flashing
Replies: 83
Views: 8604

Re: ixxat USB-to-CAN compact & Sevcon DLD flashing

Where can I find cheapest IXXAT clone that will work with Gen4 Size2 ?
by Bikebrap
Jun 07 2018 3:06pm
Forum: Items for Sale - Used
Topic: Sevcon Gen4 Size2 72V 125€ [EU]
Replies: 6
Views: 640

Sevcon Gen4 Size2 72V 125€ [EU]

I'm selling a used Sevcon Gen4 size2 in Europe for 125€

[edit]
72V 180A
sin/cos resolver input
by Bikebrap
Jun 07 2018 2:10am
Forum: E-Scooter and Motorcycle General Discussion
Topic: EU Road Legal Electrification (???)
Replies: 26
Views: 2841

Re: EU Road Legal Electrification (???)

Hello out there! I want to ask if anybody in the EU has registered or tried to register his/her motorcycle electrification project (ICE to electric). I am doing some research and I have not been able to find any so some help or info would be welcome. BTW got nothing against UK but their registratio...