Search found 334 matches

by geofft
Jun 15 2019 3:33am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

I'm using the Sempu torque sensor and i have it working, but is it possible to use a throttle in addition to this? I'm currently using a Sempu T4 torquesensor and also have a throttle connected. My method was to connect both throttle and torquesensor signal lines in parallel to the controller i/p v...
by geofft
May 24 2019 3:42am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

"Before deleting, please find out the correct phase and Hall sensor assignment on the complete system with the original firmware. This ensures that the controller in principle harmonizes with the engine." Does this simply mean finding the right cable combinations for the phase and halls, or does it...
by geofft
May 04 2019 6:39am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

If you don't want so much power dissipation/heat you could replace the linear regulator (resistor/LM317 combination) with a 15V buck converter such as the CUI V7815W-500. I did this on mine (ignore the TL783 stuff, I went for the buck instead). https://endless-sphere.com/forums/viewtopic.php?t=7976...
by geofft
Apr 25 2019 2:53am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Maybe @geofft could write something about the Q128 regarding vibrations. There seems to be no inherent problem with vibrations with this motor (Q128H) and with my current settings it pulls smoothly and quietly throughout the rpm range. When I've had issues with cogging, etc, during the development ...
by geofft
Apr 24 2019 10:42am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Hey there, **Edit** I have replaced the LM317 as it was the only thing getting warm. Well.. no luck unfortunately. The controller is just pulling too much current. Don't know if it's hardware or software related, and the reason I ask here 😅☝️ I've only had experience with the KT36/48 type controlle...
by geofft
Apr 13 2019 5:50pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Xnyle wrote:
Apr 13 2019 5:04pm
@geofft because Overvoltage is not set so you get a compile error. I didn't check you settings, that's why I asked for ones matching the CURRENT Java tool :)

I checked in corrected versions
Ahh....ok, my mistake. Thanks for correcting the files.
by geofft
Apr 13 2019 1:43pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

I've just tried out the current github download, maybe I should mention that there seems to be some problem. Some of the 'Proven settings' seem to build and flash ok, others don't. Neither of the proven settings provided by myself will flash and there appears to be an error during the build that wil...
by geofft
Apr 11 2019 10:07am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

So which one of the torque sensors on Aliexpress would you recommend for use with the Open Source controller? The Sempu T4? The Eunorau type? thx in advance I'm using the Sempu T4 with stancecoke's firmware, this works just fine for me. Don't bother with the T2 type, these give an output with any p...
by geofft
Apr 06 2019 2:27pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

I have an S06S flashed with this firmware, and when I turn on the kit, the motor starts going at a moderate speed and doesn't stop until it's turned off again. Whenever I've had this issue I've usually managed to fix it by making an adjustment to the zero point - this was using stancecoke's advice,...
by geofft
Apr 06 2019 6:42am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

@everyone who is using this FW: It would be nice if you could send me your proven settings based on the current version of the Java tool so that I can add them to the repo. Please select a filename that contains controller type, system voltage, wheelsize and motortype You can also add a pull reques...
by geofft
Feb 10 2019 6:09am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

I tried 215 motor angle, but it cogged badly and blew the fuse. So I think I have to go higer, it behaved better at about 230 where I was before. @j bjork, I've just remembered that I had similar issues to this (cogging, blown fuse, etc) when I had the 'Gain I' factor of the PI controller set too h...
by geofft
Jan 09 2019 6:02am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5073
Views: 396736

Re: New "TSDZ2 Torque Sensor Central Motor"

This thing with aliexpress seemingly dropping many 750w listings is scratching at the back of my head. It's like a situation where stocks have been wound down with no continuation expected. 2019 to see new versions? ;)) ...I'm in the uk and if I search Aliexpress for 'TSDZ2 48v 750w' quite a few se...
by geofft
Jan 09 2019 4:37am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

i want to aviod the motor startup noise,so i follow "Diagnosing motor startup problems using the app”step,
is my motor angle 105-180=-75??
I think (with angular measurement) -75deg equates to +285deg? I'm sure someone will correct me if I'm wrong.. :wink:
by geofft
Jan 08 2019 5:10am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Thank you, I have not noticed any jerkyness in the throttle. But I have not tried very much. What I mean is more the power from standstill. Even if I hold brake and full throttle, and relese the brake I think it is a little slow the first meter or so. I don`t know, maby that is how it always is. It...
by geofft
Jan 07 2019 3:59am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Hi, it has been a bit silent in this tread for a while :wink: Has there been any progress? A question, how is the trottle response compeared to the standard fw? I think it is a bit slow on the kt fw. I have got the most parts for a conversion, but it seems i have bought a bluetooth module without t...
by geofft
Dec 16 2018 6:21am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Hi, the motor didnot run smoothly when the motor was overspeed.[youtube]https://youtu.be/FXm6dFyo3hI[/youtube] maybe it is strange when i ride the bicycle. so i want to keep the speed(the limit speed) as the default speed ,when the motor is overspeed,the speed is still keep as the limit speed. whic...
by geofft
Nov 29 2018 3:15pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Status of the OpenSource firmware for Bafang 850C color LCD The configuration menu is now fully implemented and is well structured that is easy and fast to add/remove items to the menu. This LCD would be a good tool for KT motor controllers, for the ones that do prefer an LCD. In future I want to i...
by geofft
Oct 21 2018 9:02am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

I've been having a play with the 'streetmode' (i.e. non-offroad) speed limits but seem to be struggling to get them to work correctly. With Speed sensor 'external' selected (my normal setting) neither the 6kph (non pas) or the legal 25kph limits are applied and the motor runs up to it's natural maxi...
by geofft
Oct 05 2018 9:20am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

OK, thank you for testing! A value of 2.1 for threshold should work. I checked Xnyles code again. He processes the direction signal different now. The motor is not stopped when pedaling in reverse, but the speed limit is set to 6 km/h. Can you confirm this behaviour? I think this is not a good solu...
by geofft
Oct 05 2018 6:43am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

It would appear that this setting is being totally ignored by the firmware....? Hm, it should work in the same way as in the older commits... if (ui8_PAS_Flag == 1) { ui8_PAS_Flag = 0; //reset interrupt flag ui16_time_ticks_between_pas_interrupt = ui16_time_ticks_for_pas_calculation; //save recent ...
by geofft
Oct 04 2018 10:37am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

It would appear that this setting is being totally ignored by the firmware....? Hm, it should work in the same way as in the older commits... Very strange, I rechecked the previous commit I was using (downloaded 5th Sept), the PAS detection with this works just fine. Please install the BluOsec app ...
by geofft
Oct 04 2018 7:17am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Not sure, if 2.8 is enough. For me it's 3.2 when pedalling normal. Although my sensor does not send any signal when pedaling backwards so I can't test that detection functionality at all. Ok, I'll try some higher values tomorrow. It seems that whatever value is entered for 'Pas Threshold' has no ef...
by geofft
Oct 03 2018 4:02pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Xnyle wrote:
Oct 03 2018 3:18pm
Not sure, if 2.8 is enough.

For me it's 3.2 when pedalling normal. Although my sensor does not send any signal when pedaling backwards so I can't test that detection functionality at all.
Ok, I'll try some higher values tomorrow.
by geofft
Oct 03 2018 2:31pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3586
Views: 202542

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

Changing the 'PAS Threshold' setting seemed to have no effect whatsoever. Have you tried the android app already? ..not yet, but will do soon. You can get the PAS ratio displayed there, so can see the values for foreward and reverse pedaling. I tried values from 1.0 to 2.8 for 'PAS Threshold' - str...