Search found 288 matches

by famichiki
Mar 03 2021 4:38pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976811

Re: New "TSDZ2 Torque Sensor Central Motor"

Has anyone experienced a high-pitched buzzing coming from the VLCD5 when under power? It stops when I stop pedalling.
by famichiki
Dec 28 2020 4:14pm
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1687
Views: 198192

Re: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

stancecoke wrote:
Dec 27 2020 5:57am
The meaning of the options bytes is explained in the datasheet.

...

regards
stancecoke
Thank you, that's all very helpful. :thumb:
by famichiki
Dec 26 2020 6:56pm
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1687
Views: 198192

Re: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

There was a discussion here about the differences. As I understand it had to do with the input settings for the controller. I somebody could please explain the issue into a single post and what we ideally need set for OSF that would be helpful. I am currently not altering the option byte when flash...
by famichiki
Dec 25 2020 5:12pm
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1687
Views: 198192

Re: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

The option byte is a mystery ... Kati-moa, are you sure the value remained 28? From all the tests I have done, any value has changed to 20, impossible to keep 28. Not only that, setting 28 (only possible if PROGRAM MEMORY is deleted), loading only the program file, also changes the option byte to 2...
by famichiki
Dec 20 2020 2:39am
Forum: Battery Technology
Topic: The Cycle Satiator, universal charger for the enthusiasts
Replies: 852
Views: 156580

Re: The Cycle Satiator, universal charger for the enthusiasts

markz wrote:
Dec 18 2020 8:10pm
Has anyone else had a aesthetics problem with the screen. When its on I dont notice it. Plastic covering from new is off.
I recently received mine and it has the same problem. Has anyone had this remedied under warranty?
satiator.jpg
satiator.jpg (32.15 KiB) Viewed 836 times
by famichiki
Dec 13 2020 8:15pm
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1687
Views: 198192

Re: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

At 25km/h it's acceptable, but below 20 it's a continuous on/off, not what a PID tuning should do. That's what I found too, it works better at higher speeds and the problem is worse when accelerating up to cruise speed, if already travelling around the cruise speed it's not so bad. One other thing,...
by famichiki
Dec 09 2020 5:35pm
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1687
Views: 198192

Re: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

The choice to save manually is deliberate, I think it must be voluntary. No worries, I was just curious. Is cruise mode all working properly? In my own port I had some issues with it overshooting the target speed a lot, then cutting all power until the speed came back down. I'm not sure if it's sup...
by famichiki
Dec 08 2020 5:08pm
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1687
Views: 198192

Re: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

Hi famichiki. The purpose of this check is to avoid, in case of problems, unlimited writing attempts that would damage the eeprom. ui8_error_number is reset by turning the display off and on again. Thanks. I wasn't sure if this was as intended as it still allows a single attempt at subsequent write...
by famichiki
Dec 08 2020 10:56am
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1687
Views: 198192

Re: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

At some stage Mbrusa has added a limit on the number of EEPROM write attempts in eeprom.c. The original code continually tried rewriting but now it only tries 3 times then throws an error. However, it seems that ui8_error_number does not get reset to zero, so all further failed attempts at saving th...
by famichiki
Dec 02 2020 8:07pm
Forum: Battery Technology
Topic: The Cycle Satiator, universal charger for the enthusiasts
Replies: 852
Views: 156580

Re: The Cycle Satiator, universal charger for the enthusiasts

No dramas, it was just a thought and with everyone's help here I've learned enough to scratch that idea. :thumb:
by famichiki
Dec 02 2020 7:27pm
Forum: Battery Technology
Topic: The Cycle Satiator, universal charger for the enthusiasts
Replies: 852
Views: 156580

Re: The Cycle Satiator, universal charger for the enthusiasts

They should both be in healthy condition, and be at a similar voltage before paralleling. Thanks for the info. If the batteries were at very different SOCs, say one depleted and the other half full, would it be OK as long as the individual batteries can handle the charger's full output once they we...
by famichiki
Dec 02 2020 6:44am
Forum: Battery Technology
Topic: The Cycle Satiator, universal charger for the enthusiasts
Replies: 852
Views: 156580

Re: The Cycle Satiator, universal charger for the enthusiasts

Is it possible to charge two batteries simultaneously with a Cycle Satiator? I have two identical EM3ev 52V Jumbo Sharks that I'd like to charge at the same time. Presuming they are off the bike, do I need anything fancier than a splitter for the battery charging ports? How does the Satiator decide ...
by famichiki
Nov 29 2020 9:59pm
Forum: EBike Technical
Topic: What should low voltage cutoff be on a 52v battery
Replies: 20
Views: 9724

Re: What should low voltage cutoff be on a 52v battery

I have an EM3ev 52V Jumbo Shark with Samsung 35E cells and am using it with a TSDZ2. The cells discharge cut-off is rated at 2.65V and EM3ev tell me the BMS LVC is set at 2.75V. From what I can gather here, setting my controller's LVC to 0.5V over the cells rated 2.65V should be considered safe. So ...
by famichiki
Nov 06 2020 4:48pm
Forum: EBike Build Threads
Topic: My attempt at a lightweight EMTB with torque based PAS
Replies: 72
Views: 5891

Re: My attempt at lightweight, torque based EMTB

How's the torque compare to the TSDZ2, strong enough to get up steep inclines without overheating? And how do you find the torque sensing in comparison? Any delays or motor overrun issues? Did you just use a standard bicycle chain for the drive chain? Any other problems now that you are not running ...
by famichiki
Oct 26 2020 6:06pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976811

Re: New "TSDZ2 Torque Sensor Central Motor"

I received a couple of spare parts recently and there were some interesting changes. First, the blue gear 609RS end ball bearing was very firmly fixed in place whereas it would spin within the gear on the one that came with my motor. And now the drive side cover has a small amount of machining done ...
by famichiki
Oct 26 2020 5:14pm
Forum: EBike Build Threads
Topic: My attempt at a lightweight EMTB with torque based PAS
Replies: 72
Views: 5891

Re: My attempt at lightweight, torque based EMTB

How's this going, did you get the hall sensors sorted out yet? After looking over the thread again I realised that you lock the axles in the brackets and the the hub motor spins as it normally would in a wheel, is that correct? Did you give any consideration to fixing the motor in position and spinn...
by famichiki
Oct 11 2020 5:41pm
Forum: EBike Non-hub Motor Drives
Topic: TSDZ2 repair - need advice
Replies: 15
Views: 902

Re: TSDZ2 repair - need advice

charakaSamawry wrote:
Oct 11 2020 12:07pm
Dang been trying to get it off thinking it was gone.. does feel a little rough though. But i cant get it past the torque sensor..?
I replied to your other post with some instructions over here...
viewtopic.php?f=28&t=79788&p=1589910#p1589910
by famichiki
Oct 11 2020 5:40pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976811

Re: New "TSDZ2 Torque Sensor Central Motor"

How’d changing the 2214 roller bearing go? Was it easy enough to desolder? And afterward you just had a to recalibrate the torque sensor? It was pretty easy to pick off the potting and desolder. I then cleaned up the pads with some braid and isopropyl alcohol. Then unscrew the sensor plate and pull...
by famichiki
Oct 05 2020 7:12pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976811

Re: New "TSDZ2 Torque Sensor Central Motor"

Can anyone please tell me where the 3 springs behind the torque sensor should sit? In the long slots by themselves, or around the nipple in the circular holes? There's conflicting info around.. OK Feet's disassembly video shows them in the circular holes, but other repair guides show them in the lon...
by famichiki
Oct 01 2020 3:57am
Forum: EBike Build Threads
Topic: My attempt at a lightweight EMTB with torque based PAS
Replies: 72
Views: 5891

Re: My attempt at lightweight, torque based EMTB

It sounds a bit like a walk mode that is always running, is that the general idea? Do you feel any motor pull or overrun when you stop pedalling, or will it eventually coast to a stop? Is there just the single stall time setting that times out after you stop pedalling, or does it require the speed t...
by famichiki
Sep 30 2020 3:21am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976811

Re: New "TSDZ2 Torque Sensor Central Motor"

Also, when I first tried out the brass gear, I put it in with almost no grease and biked for a few blocks around. Later I found lots of gold dust inside. I've cleaned everything carefully and then properly greased it before going on that 50km test ride. Do you think that somehow could've any impact...
by famichiki
Sep 29 2020 3:54am
Forum: EBike Build Threads
Topic: My attempt at a lightweight EMTB with torque based PAS
Replies: 72
Views: 5891

Re: My attempt at lightweight, torque based EMTB

With the electric freewheel enabled, it is using around 15-20W to keep the motor and chain spinning, so I can just set assistance to zero to get absolute no extra drag at all. Not that I feel much of a difference. So when you start pedalling it gives you a flat ~20W assist? Or does it vary up to th...
by famichiki
Sep 28 2020 6:54pm
Forum: EBike Non-hub Motor Drives
Topic: Bafang M500/M600 thread
Replies: 708
Views: 77471

Re: Bafang M500/M600 thread

mirkoser100 wrote:
Sep 24 2020 12:34pm
No you can just modify the max speed and wheel size
Is there a full list somewhere of what settings are editable through the BESST software, or is that all?
by famichiki
Sep 28 2020 6:47pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976811

Re: New "TSDZ2 Torque Sensor Central Motor"

Example of the pressure exerted by the helical gear. Wear of the retaining ring after 8000 km. :oops: After better analysis, the wear on the retaining ring is not due to the helical gear but to the lateral movement of the main shaft which causes the friction of the retaining ring on the roller bear...
by famichiki
Sep 27 2020 3:50pm
Forum: EBike Technical
Topic: Bafang G310 geared hub - 11:1 reduction ratio!!!
Replies: 239
Views: 45359

Re: Bafang G310 geared hub - 11:1 reduction ratio!!!

The Phaserunner looks great. After further research I now understand a lot more about the capabilities of hub motors. They seem like a much neater and more practical solution so I'd still like to play around with one. But perhaps sticking with a mid-drive might be best for this bike so now I need to...