New "TSDZ2 Torque Sensor Central Motor"

[casainho]

TSDZ2 engine is no longer listed on Tongsheng website "www.tsbicycle.net".
And most of the sellers have stopped selling it.
It is rumored that Bafang is suing Tongsheng.
Will replacement parts be available in the long term?
There is a discussion about this on facebook
https://m.facebook.com/groups/734929600180813/
I was thinking of buying two TSDZ2 engines this spring for friends but I will follow the development of this story.

Thanks for the news!! this is an important warning. I never expected this end

[Wapous]

I have received info from Tangsheng office:

"This motor TSDZ2 is being upgraded currently, so the old model isn't listed on the official website. "

So we will be waiting for development.

[casainho]

I have received info from Tangsheng office:

"This motor TSDZ2 is being upgraded currently, so the old model isn't listed on the official website. "

So we will be waiting for development.

Thanks.

Time to make a wish list and see if that will happen.

For me I only wish it to be more silent and keep the same weight, or even better if the weight is even less.

[CKBuijs]

I emailed EcoCycles (Nashville, TN, USA) about the law suit a couple weeks ago. Hopefully it is resolved. Here is their response:

RE: The infringement legal ruling - it's not a problem here. Tongsheng has already addressed the issue, moving some production to an already established location in Japan, among other changes. No worries.

Best Regards

[CKBuijs]

I am finally starting to get comfortable with the TSDZ2 after living with it a few weeks (Casainho OSF V1.1, 650C display).

I still need to set the battery resistance; the wiki method wasn't working (it stays at 0); I've ordered a resistance tester (AideTek SM8124A Portable Battery Internal Resistance Voltmeter Resistance Tester).

New thing I noticed is that the battery bar indicator started showing very low even though my battery voltage was fine. Now it shows nothing. Hasn't affected performance though. Any one seen this?

[ilu]

New thing I noticed is that the battery bar indicator started showing very low even though my battery voltage was fine. Now it shows nothing. Hasn't affected performance though. Any one seen this?

Perhaps your battery reset voltage is higher than the voltage of your charged battery?

[Wapous]

It is interesting to read this article on the Edrivenet.com site
Among other things it is written this:

"September 2021: Bafang has sued Tongsheng for patent infringement. Bafang has won this lawsuit, therefore the Tongsheng TSDZ2 officially can’t be sold on big platforms like Aliexpress and Amazon anymore. Because of this, it can be hard to find sellers of the Tongsheng TSDZ2 on these platforms. Sellers on Aliexpress and Amazon now don’t use the official name anymore to avoid getting their listings removed by the platforms."

https://edrivenet.com/tongsheng-tsdz2-vs-bafang-bbs02/

[dameri]

It is interesting to read this article on the Edrivenet.com site
Among other things it is written this:

"September 2021: Bafang has sued Tongsheng for patent infringement. Bafang has won this lawsuit, therefore the Tongsheng TSDZ2 officially can’t be sold on big platforms like Aliexpress and Amazon anymore. Because of this, it can be hard to find sellers of the Tongsheng TSDZ2 on these platforms. Sellers on Aliexpress and Amazon now don’t use the official name anymore to avoid getting their listings removed by the platforms."

https://edrivenet.com/tongsheng-tsdz2-vs-bafang-bbs02/

Very good writing in edrivenet.com about the differences between bafang and TSDZ2. Thank you for shearing.

[casainho]

It is interesting to read this article on the Edrivenet.com site
Among other things it is written this:

"September 2021: Bafang has sued Tongsheng for patent infringement. Bafang has won this lawsuit, therefore the Tongsheng TSDZ2 officially can’t be sold on big platforms like Aliexpress and Amazon anymore. Because of this, it can be hard to find sellers of the Tongsheng TSDZ2 on these platforms. Sellers on Aliexpress and Amazon now don’t use the official name anymore to avoid getting their listings removed by the platforms."

https://edrivenet.com/tongsheng-tsdz2-vs-bafang-bbs02/

So sad as TSDZ2 is such important technology for ebikes, Bafang lags behind and decided to make only available the torque sensor on expensive models (integrated motor).

We really need accessible technology, and not locked one that is only to protect the business models of expensive brands.

I really hope we can keep buying TSDZ2. I just built a bigger display, with the same size OLED display as SW102, that works for TSDZ2 but since the firmware and hardware are OpenSource and DIY, it is future prof that can be adapted for future motors:

[Elinx]

.....

"September 2021: Bafang has sued Tongsheng for patent infringement. ....

The only similarity between Bafang and Tongsheng I can think of is the bottom bracket mounting.
When the sue was about that, then I fear for the future production of the Tsdz2.

[gfmoore]

I doubt they'll stop making motors. Far too much money in them. TSDZ3 (or is it 4!)

[Wapous]

.....

"September 2021: Bafang has sued Tongsheng for patent infringement. ....

The only similarity between Bafang and Tongsheng I can think of is the bottom bracket mounting.
When the sue was about that, then I fear for the future production of the Tsdz2.

It looks like this patent was filled by SunStar around 2007.

[Elinx]

....
It looks like this patent was filled by SunStar around 2007.

I found here that Sunstar sued Bafang too for the BBS01.

[Woody100DK]

I've decided to upgrade my Winther Kangaroo Luxe Cargo bike with a TSDZ2 250W 36V coaster brake model with a 48V battery and XH18 display. I intend to flash it with emmebrusas 20.1c later on. I have a couple of questions and doubts which I was hoping anybody could help me with:

1. Does anybody know of an upgrade to the Winther Kangaroo Luxe with a TSDZ2?

2. Originally I had planned to install the 350W motor but that would mean it wasn't road legal in Denmark. I have read that the only difference between the different models (250W, 350W, 500W) is a setting and nothing to do with any electrical components, is that correct?
In that case i could buy the 250W and upgrade if desired.

3. I have read on a forum that it's best to combine the 36V motor with a 48V battery as that gives it more power, is that correct?

4. Does it make sense to fit it with a hand break sensor since i have a coaster brake on it? It's a hydraulic brake. Is it even possible with the XH18?

5. The battery would be placed app. 1,5m from the motor, that shouldn't be a problem correct?

6. I would like to hear if anybody sees an issue with mounting it on the frame? I'll attach some pictures.

7. Can anybody confirm that emmebrusas OSF works with a coaster brake motor?
I appreciate all the feedback and advice I can ge

[Doohickey]

2. Originally I had planned to install the 350W motor but that would mean it wasn't road legal in Denmark. I have read that the only difference between the different models (250W, 350W, 500W) is a setting and nothing to do with any electrical components, is that correct?
In that case i could buy the 250W and upgrade if desired.

3. I have read on a forum that it's best to combine the 36V motor with a 48V battery as that gives it more power, is that correct?

36v motor with 48v battery gives higher cadence (beyond 80 rpm or so), so yes, it gives higher power, but only when you pedal fast. Torque remains the same, just that you can pedal faster and still have torque from the motor (IIRC). If you pedal slower and want high power, IMO you should get a 48v motor with 48v battery. Out of the factory, only 36v motor is available with 250w rating - using 48v battery means that you'll have to pedal fast to get that additional power. 48v motor is only available with 500w/750w rating I think. Stock firmware will refuse to work with "wrong" voltage, you need to flash opensource firmware immediately to use this "mismatched" combination. Opensource firmware allows you to set power limit, so you can put 250w limit and theoretically make it road legal.

5. The battery would be placed app. 1,5m from the motor, that shouldn't be a problem correct?

no problem - just need to make / solder a wire extension.

[thineight]

Hello everyone.
Not sure this has been solved over the last months (I have a huuuge backlog on this thread).. but today I sketched a cap for the second plug of the speed sensor, that remains exposed to environment.. the black tape does not last long so I decided to 3D print my own solution.
Let me share it with you in case you need a working solution to protect the exposed plug, of course you need a 3D printer.
Casainho, please see if you want to put the STL in the main wiki for wider audience.

Thanks

Cap speed sensor cable TSDZ2.zip

(33.7 KiB) Downloaded 507 times

tappo.png (29.25 KiB) Viewed 1266 times

[casainho]

Hello everyone.
Not sure this has been solved over the last months (I have a huuuge backlog on this thread).. but today I sketched a cap for the second plug of the speed sensor, that remains exposed to environment.. the black tape does not last long so I decided to 3D print my own solution.
Let me share it with you in case you need a working solution to protect the exposed plug, of course you need a 3D printer.
Casainho, please see if you want to put the STL in the main wiki for wider audience.

Thanks
Cap speed sensor cable TSDZ2.zip

tappo.png

Yes, please add to the wiki.

[thineight]

Yes, please add to the wiki.

I'm afraid I'm not able to do that, I'm not that skilled with github .
Sorry, can you do that in the proper section?
Te cap fits with a "click", but perhaps printed at 99% scale gives a tighter fit.

[casainho]

I just installed the second unit of the DIY OpenSource display on my mini cargo bike with TSDZ2:

Yes, please add to the wiki.

I'm afraid I'm not able to do that, I'm not that skilled with github .
Sorry, can you do that in the proper section?
Te cap fits with a "click", but perhaps printed at 99% scale gives a tighter fit.

Done, at the end of main page.

[Wapous]

Just for information.
This is the first time that I have installed a chain dedicated to electric bikes.
I mainly do road trips and normally I have to change the chain 2 to 3 times to cover 5000 km.
But this KMC chain for eBike is indestructible and after 5400 km it is still in the standards.
And of course the cassette will last much longer.
An expensive but profitable product.

[casainho]

I did finish the configurations menus. Next week I will be using this firmware on my EBikes and if all goes well, I will make a release and I will document the build process for the display, as also update the TSDZ2 wiki:

[feyris]

I've decided to upgrade my Winther Kangaroo Luxe Cargo bike with a TSDZ2 250W 36V coaster brake model with a 48V battery and XH18 display. I intend to flash it with emmebrusas 20.1c later on. I have a couple of questions and doubts which I was hoping anybody could help me with:

1. Does anybody know of an upgrade to the Winther Kangaroo Luxe with a TSDZ2?

2. Originally I had planned to install the 350W motor but that would mean it wasn't road legal in Denmark. I have read that the only difference between the different models (250W, 350W, 500W) is a setting and nothing to do with any electrical components, is that correct?
In that case i could buy the 250W and upgrade if desired.

3. I have read on a forum that it's best to combine the 36V motor with a 48V battery as that gives it more power, is that correct?

4. Does it make sense to fit it with a hand break sensor since i have a coaster brake on it? It's a hydraulic brake. Is it even possible with the XH18?

5. The battery would be placed app. 1,5m from the motor, that shouldn't be a problem correct?

6. I would like to hear if anybody sees an issue with mounting it on the frame? I'll attach some pictures.

7. Can anybody confirm that emmebrusas OSF works with a coaster brake motor?
I appreciate all the feedback and advice I can ge

2: You can order any power. I added a 250W sticker on mine just in case.
4: No need to add a hand break sensor for you. You may adapt the sensor to any moving part on the coaster brake, not sure how it's work.
5: no pb.
6: verify you can reroute the black cable to upper the pedals axe, it may interfere with the motor here.

[casainho]

Pictures of my 5 months old baby, while we do our daily ride on the mini cargo bike with TSDZ2 -- sleeping at the end.

I am being testing the display and the screen data on the display, is almost invisible against the sunlight - my only hope is that this OLED displays get better over time.

[casainho]

I am updating the website documentation and I am proud of what we got so far. I am all for repairing and reusing and that are strong advantages for me, reusing the knowledge, technology and electronic components over different devices and in time, making this future prof.

https://opensourceebike.github.io/

[Griepje]

Hi guys,i replaced my old tsdz2 for a new one after riding to long with shitty bearings, damaging the pass ant torque sensors on the way.
After about 1000km the new motor somtimes suddenly stops supporting making a strange noise as if it runs freely, (could it be running backwards?) trembling a little also and then just stops completely. At first stop and start pedaling was enough to make it go again but its getting worse. Tried putting it in a low gear pedaling fast today and it started to work again but that coold be coincidental. Changed my old vlcd5 for the new one but that doesn’t help. Before i take the whole thing apart, does anybody has a clue whats going on here.