Search found 29 matches

by szkuba
Apr 01 2021 11:02am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

Hi, Just received Erider T9 torq sensor to be later added for my Kunteng 6fet controller. Because the rumours of quality issues and broken sensors i did following founding’s. 1. Cadence output has different topology than regular PAS sensor. T9 Cad output is sourcing 4.1 volt at high state and groun...
by szkuba
Mar 17 2021 2:10am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

[quote=Vbruun post_id=1624989 Pretty interested in this as I think my sensor is slowly failing as well. Could this pull Up voltage be changed by a simple voltage divider? [/quote] That i am not sure if voltage divider would help. Can you describe how are powering the T9? Are you disconnecting the ba...
by szkuba
Mar 02 2021 11:19am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I don't know, why the ERider T9 / T13 torquesensor always dies on a Kunteng controller. One guy in the german forum wasted three sensors this way. Now he uses a Lishui Controller and everything works well :shock: Could it be due to different pull-up voltage on PAS pin? Measured voltage at free floa...
by szkuba
Jan 24 2021 2:41pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I wanted to share two small e-bike conversion with Open Firmware recently acomplished to my family and friends: 1. 24inch e-MTB with Q85 motor, and Sempu T4 IMG_20210109_183319.jpg 2. 20inch with bafang 020.350 DC and eRider T9 IMG20210123181227-1.jpg Both have reduced battery current to 7A and Phas...
by szkuba
Jan 24 2021 2:29pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

motor spin all time at very low speed Nice to see the motor spinning, this is a great sucess already! Congratulations! It seems that the battery-current measuring is not stable fast enough at startup. We already have build in a pause in the autozero procedure in the adc_init(void) function, but it ...
by szkuba
Jan 15 2021 12:41pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

Of course it works to remove the additional 5 magnets, but it takes at least 2h to disassemble the motor, remove the magnets and reassemble the motor. It only takes 2s to type "*6" :lol: regards stancecoke Then it is really faster, although i do not know where is the main code :oops:
by szkuba
Jan 15 2021 1:49am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

From the other side i heard some poeple remove the excessive (five) speed magnets from the motor and then it works. Are you crazy? :shock: You just have to add a "*6" to one line of code ! ACAcommons.c line 98: ui32_speed_sensor_rpks_accumulated += (((uint32_t)ui16_pwm_cycles_second)*1000...
by szkuba
Jan 13 2021 1:30pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I think if you select 'External speed sensor' and then divide your wheel circumference figure by 6 (in the configurator) it may work. I say 'may' work, but there might be a problem. Your speed pulses will be arriving at the controller at 6 times the usual rate and they may get blocked by the firmwa...
by szkuba
Jan 12 2021 1:25pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I do have Bafang motor with 6 magnets for speed reading. How to setup this properly so i can get real time speed read? Shall i select "external" speed sensor? How about defining six magnets? Appreciate any response.
by szkuba
Oct 06 2020 1:47am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

No, just the direction detection via the PAS fraction is irrelvant. else { // torque sensor mode float_temp = (float) ui16_sum_torque; float_temp *= ((float) ui8_assist_percent_actual / 100.0); if (flt_torquesensorCalibration != 0.0) { float_temp *= flt_torquesensorCalibration / ((float) ui16_time_...
by szkuba
Oct 03 2020 5:31am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

The PAS threshold is irrelevant in torque sensor mode. It's not used in the code. regards stancecoke Okay but then is it PAS irrelevant at all. I though cadence is affecting the power calculation ? so then i am looking for the reson why sometimes the motor does not star from idle. It may takie few ...
by szkuba
Oct 02 2020 4:38am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I have set the PAS threshold on 1.5 for Sempu T4 with 48pulses per rotation. Is it correct given the readouts for forward rotation in BlueOsec (bakward is just zero):? PAS status - PAS fraction 2,44 - 8/3 2,4 - 9/3 2,4 - 9/3 1 - 7/4 1,68 - 5/3 2,58 - 7/3 1,66 - 8/4 1,77 - 5/3 2,48 - 7/3 1,65 - 7/4 1...
by szkuba
Sep 30 2020 2:08pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

Just run first test. It works just great. I have set the Gain P on 0.10 and Gain I on 0.02. Are those perimeters also responsible for the speed of power decrease?
The lower values seemed to sluggish and we need some reactivity for offroad riding. Tomorrow next test :D
by szkuba
Sep 30 2020 10:52am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I read the manual but cannot clearly determine which Ramp schould i define and what value pit there. The ramp settings are for "torque-simulation" mode only. With a torque-sensor, they have no function. For slower respond you have to reduce the Gain P and Gain I settings of the PI-control...
by szkuba
Sep 30 2020 6:28am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I am flashing the firmware for junior MTB on 24wheels with AKM 85 motor with torque sensor. What i would to achieve is kimś od soft start do the motor powr does increase over 0.5 to 1 sec. I read the manual but cannot clearly determine which Ramp schould i define and what value pit there. Can you he...
by szkuba
Sep 26 2020 2:56am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I have not found na answer anywhere do here the very basic(dumny ) question:
When flashing the firmware the controller schould or schould not be connected:
1. To a battery?
2. To other peripherals like LCD, Pas etc.?
3. Powered on or off?
by szkuba
Sep 25 2020 2:15am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

stancecoke wrote:
Sep 25 2020 1:55am
szkuba wrote:
Sep 25 2020 12:50am
Does anyone knows what is the EN pin for?
This is the enable pin. It has to be on TTL high to enable the 12V output.
You can just short it to the VIN+ pad to enable the output permanently.

regards
stancecoke
Thanks :D
by szkuba
Sep 25 2020 12:50am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

The dynamic assist mode: what is the assit variation here? Sorry, this feature was added by @Xnyle. I have no idea, what it does, I don't use it. regards stancecoke Not sure if you've seen this, but there is some reference to it in the wiki, copied below:- Ride Options: Dynamic Assist Level: Using ...
by szkuba
Sep 24 2020 3:19am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

because I was trying to pore over every single ligne of the program to figure out where I had to change the code.... I've implemented the walk assist in the new branch "Walk_Assist": https://github.com/stancecoke/BMSBattery_S_controllers_firmware/tree/Walk_Assist It's just quick and dirty...
by szkuba
May 19 2020 9:52am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

stancecoke wrote:
May 19 2020 2:09am

No. If you want to use the LCD Display you have to adapt most settings in the Java-Tool. You can use the LCD for the basic settings max speed and wheel size.
Thanks, so the PAS levels work as well i suppose? Would the walk assist and lights activation work as well?
by szkuba
May 19 2020 1:55am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

I havent found the answer in the docs so the basic question:

would the firmware work with both the LCD4 and bluetooth adapter?

I would use it to program/monitor the perimeters but when released the bike to 10y kid i would only let him use the LCD :wink:

Is it possible?
by szkuba
May 18 2020 11:12am
Forum: EBike Technical
Topic: Xiongda YTW-06 mini hub motor
Replies: 106
Views: 24841

Re: Xiongda YTW-06 mini hub motor

Hello folks, has are your xionga motors afer some time?
I do plan to use mini hub motor for the 10year kid on his 24inch MTB.
Would you recomend XIONGA or rather Q100?
Loking forward for your reply
by szkuba
Mar 01 2020 12:13pm
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 4459
Views: 436817

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

1. Dynamic assist level? You have to ask Xnyle for that feature :-) 2. Speed influences Tq Sensor? If you activate this, the assist factor increases with the speed (for lazy commuting :-)) 3. I was wandering how the cadence is being calculated? The number of timertics (@16kHz) between two PAS inter...