New "TSDZ2 Torque Sensor Central Motor"

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Dirkro   10 W

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by Dirkro » May 07 2019 10:34am

btslo wrote:
May 07 2019 4:46am
hefest wrote:
May 06 2019 4:31pm
btslo wrote:
May 06 2019 1:45pm
Can we jack up the cadence on the 48v with the opensource firmware? (I saw some options on the wiki but were "experimental", any side effects?)
Asked the same but it looks like there isn't. There are probably two options, one is to get just the 36V motor and replace existing one, another is to run dc-dc boost converter and raise the voltage to 52V.
See here:

https://github.com/OpenSource-EBike-fir ... 11_Various

"Set (2) (EXPERIMENTAL) for the 48 V brushless motor, high cadence mode. Maybe not good for the motor, use at your own risk. Probably only suitable for the 36 V motor."

But not sure if anyone is using this.
I have installed 18.2 on a 36 V motor, The 48 V Option is NOT working on a 36 V engine with 36V batterie.
Option 2 Running well if you are a fan of high cardence.
Option 1 is prefect for me would guiess to have Support until 90 .

Regards

Dirk
Oh darling, this is not a new bike.. :roll:

btslo   100 mW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by btslo » May 07 2019 12:02pm

Dirkro wrote:
May 07 2019 10:34am
btslo wrote:
May 07 2019 4:46am
hefest wrote:
May 06 2019 4:31pm
btslo wrote:
May 06 2019 1:45pm
Can we jack up the cadence on the 48v with the opensource firmware? (I saw some options on the wiki but were "experimental", any side effects?)
Asked the same but it looks like there isn't. There are probably two options, one is to get just the 36V motor and replace existing one, another is to run dc-dc boost converter and raise the voltage to 52V.
See here:

https://github.com/OpenSource-EBike-fir ... 11_Various

"Set (2) (EXPERIMENTAL) for the 48 V brushless motor, high cadence mode. Maybe not good for the motor, use at your own risk. Probably only suitable for the 36 V motor."

But not sure if anyone is using this.
I have installed 18.2 on a 36 V motor, The 48 V Option is NOT working on a 36 V engine with 36V batterie.
Option 2 Running well if you are a fan of high cardence.
Option 1 is prefect for me would guiess to have Support until 90 .

Regards

Dirk
Yes, I'm interested in option 2 on a 48V motor. Should get higher cadence on this motor.

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elem   100 W

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by elem » May 08 2019 12:40am

I have installed 18.2 on a 36 V motor, The 48 V Option is NOT working on a 36 V engine with 36V batterie.
Option 2 Running well if you are a fan of high cardence.
Option 1 is prefect for me would guiess to have Support until 90 .

Regards

Dirk


Ok it seem it s what i have experimented,
i m using 12S batt on a 36V motor and haven t noticied highter cadence, btw i m not using option 2 "highter cadence mode "
i will try to activate this option,
someone said me that it was not necessary to activate "experimental mode " and using more voltage was suffisant to increase rpm .
RockRider 9.1 TSDZ2 open source firmware .

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jbalat   10 kW

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Re: Right side crank play and/or slipping problem

Post by jbalat » May 08 2019 6:52am

hefest wrote:
May 05 2019 1:16pm
From what I gathered it's sprag clutch bearing issue. Main problem is that this bearing is also the one handling all the force applied by foot and motor. Replacement comes in form of main gear and bearing already fitted. According to the info I gathered, after the blue gear failure, this is second thing to go wrong wether it's manifesting as increased play in the right crank side or complete failure with slipping. With a little bit of tinkering the best option would be to replace original bearing which is rated for up to 110nm of torque with better quality bb30-1k-1 bearing rated for 140nm.

https://www.aliexpress.com/item/BB30-On ... 74129.html
Great find, looks like it should fit but do you know of anyone that has used this bearing with this motor ?
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hefest   10 W

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Re: Right side crank play and/or slipping problem

Post by hefest » May 08 2019 11:34am

jbalat wrote:
May 08 2019 6:52am
hefest wrote:
May 05 2019 1:16pm
From what I gathered it's sprag clutch bearing issue. Main problem is that this bearing is also the one handling all the force applied by foot and motor. Replacement comes in form of main gear and bearing already fitted. According to the info I gathered, after the blue gear failure, this is second thing to go wrong wether it's manifesting as increased play in the right crank side or complete failure with slipping. With a little bit of tinkering the best option would be to replace original bearing which is rated for up to 110nm of torque with better quality bb30-1k-1 bearing rated for 140nm.

https://www.aliexpress.com/item/BB30-On ... 74129.html
Great find, looks like it should fit but do you know of anyone that has used this bearing with this motor ?
Yes, someone on German forum. This motor is sold in Germany under two different names, one is SFM DU250.

sabergo   100 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by sabergo » May 09 2019 2:22am

The SW102 news is exciting to say the least. It tics all of the boxes for me (small, bluetooth, easy to read in daylight and so on.

Milodavies   1 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by Milodavies » May 09 2019 3:50am

Help please!
I'm trying to get my new TSDZ2 conversion to work and have so far failed.
The battery is ok (tested with a multimeter), but the display simply won't switch on (VLCD6). Has anyone experienced problems with this display? Or problems with a new motor sinply not working first time?
I am wondering whether it's most likely to be the display or the motor itself.
The obvious thing to do would be to try it with another display but nobody where I live sells them so I'd need to buy another one online which I'd rather not do.
Hoping it's just the display as that will be much easier to send back to China (Aliexpress) than the motor.

btslo   100 mW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by btslo » May 09 2019 5:15am

What voltage battery are you using?

knutselmaaster   100 W

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by knutselmaaster » May 09 2019 5:35am

Check the pins in the display connector, they bend easily.

itchyfoot42   100 mW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by itchyfoot42 » May 09 2019 1:45pm

My 48V TDSZ2 (2 years old) starts at 55.4 volts. May not if above that. I have a 52V battery and charge it to 80% to get 55.4V at the battery. Bad: I don't get to use the 55.4 to 58.4 capability of the battery. Good: it forces me to operate in the 50% to 80% of the battery capability. Battery will probably last a long time...

bergerandfries   10 mW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by bergerandfries » May 09 2019 6:11pm

itchyfoot42 wrote:
May 09 2019 1:45pm
My 48V TDSZ2 (2 years old) starts at 55.4 volts. May not if above that. I have a 52V battery and charge it to 80% to get 55.4V at the battery. Bad: I don't get to use the 55.4 to 58.4 capability of the battery. Good: it forces me to operate in the 50% to 80% of the battery capability. Battery will probably last a long time...
How are you limiting it to 55.4v? This is not a standard charging voltage, so how are you keeping it to 55.4?

rrc29   1 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by rrc29 » May 09 2019 8:20pm

Hey guys,

Had my first go making an e bike and I opted for the TSDZ2. I've run into some issues...

1 the cranks and pedals feel really wobbly and not very well secured have I put them on incorrectly?

2 the display is hard to read and flashy. Is there a way to reset it?

3 the throttle I bought doesn't seem to work. Does this just plug directly into the display?

Bought the motor from e bird store and the battery is from Hailong

Sorry if the answer to these questions is obvious, I'm not very savvy with bikes or electronics but just wanted to give it a go!

mdodgethomas   1 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by mdodgethomas » May 11 2019 1:21am

I am having the same problem as Milodavies (above) with my 48V 750W install (cannot activate display), and I have successfully installed a 36V 500W unit on a different bike, so I understand how to do the general install properly, and I'm probably not overlooking anything obvious.

Does anyone here have a pin diagram for the cable between the motor and the display, so that I can check that power is being supplied to the display?

Any other diagnostic suggestions?

Thanks in advance.

continuous_square   1 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by continuous_square » May 12 2019 1:29pm

Hi,

I hope someone can answer my question:

Does all Tongsheng TSDZ2 support coaster brakes, or are there differents versions of the motor?

(I need coaster brake support.)



Thanks in advance!

el_proletario   10 mW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by el_proletario » May 12 2019 3:56pm

continuous_square wrote:
May 12 2019 1:29pm
Hi,

I hope someone can answer my question:

Does all Tongsheng TSDZ2 support coaster brakes, or are there differents versions of the motor?

(I need coaster brake support.)



Thanks in advance!
There are 2 different versions.
You can buy the coaster brake version it should be stated by your seller.

hefest   10 W

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by hefest » May 12 2019 4:07pm

I've finally started installation of tsdz2.
Once I removed cranks I noticed that BB is actually pretty hard to turn. Lost almost 4 hours trying to remove the BB and it took a lot of force to do it. I had to use 1 meter long car lugnut removal tool to get it going. But luckily, tsdz2 is clearing the chainstay pretty well.

bacman   10 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by bacman » May 12 2019 9:08pm

Hi,
my TDSZ2 finally arrived. I am just surprised how stiff is the crank mechanism without any assistance - is this normal?

How stiff is suppose to be the sprag clutch compared to normal bike bottom bracket?

knutselmaaster   100 W

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by knutselmaaster » May 13 2019 12:44am

There should be almost no resistance.

jtsavola   10 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by jtsavola » May 14 2019 9:02am

eyebyesickle wrote:
Apr 12 2019 10:53pm
So remove the seal on the non drive side:
tsdz2nondriveseal.jpg

then remove the lock ring, and insert some identical washers until you can BARELY slide the lockring back down to snap on. In order to get it snug, I cannot place the lock ring with the pliers...I get it as far back as I can, then I have to slide it until it locks back into the groove, because you will need to apply some pressure if you put enough washers there to snug everything up...
tsdz2nondrivebehindseallockring.jpg


Washer size / part info to follow...
Think time to try remove crank axle wobbling. Any tips how to remove left side seal without destroying it? Seems in front is soft and thin rubber and behind it is something harder...

Tucznik   1 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by Tucznik » May 14 2019 12:39pm

Have anyone measured this distance?
Image
I mean minimum distance between the round part that goes into bottom bracket to the rest of the engine.

My BB is:
PF41
92mm BB
outside diameter: 47,5 mm

Has anyone tested if you need some eccentric adapter to fit the engine or it will fit using concentric BB adapters?

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eyebyesickle   10 kW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by eyebyesickle » May 14 2019 7:34pm

jtsavola wrote:
May 14 2019 9:02am
eyebyesickle wrote:
Apr 12 2019 10:53pm
So remove the seal on the non drive side:
tsdz2nondriveseal.jpg

then remove the lock ring, and insert some identical washers until you can BARELY slide the lockring back down to snap on. In order to get it snug, I cannot place the lock ring with the pliers...I get it as far back as I can, then I have to slide it until it locks back into the groove, because you will need to apply some pressure if you put enough washers there to snug everything up...
tsdz2nondrivebehindseallockring.jpg


Washer size / part info to follow...
Think time to try remove crank axle wobbling. Any tips how to remove left side seal without destroying it? Seems in front is soft and thin rubber and behind it is something harder...
Remove the chain ring, and the lock ring behind it that holds the axle... Then push it out... The bearing behind the rubber seal will push it, so you don't have to tear it up with a screwdriver etc...

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eyebyesickle   10 kW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by eyebyesickle » May 14 2019 7:35pm

Tucznik wrote:
May 14 2019 12:39pm
Have anyone measured this distance?
Image
I mean minimum distance between the round part that goes into bottom bracket to the rest of the engine.

My BB is:
PF41
92mm BB
outside diameter: 47,5 mm

Has anyone tested if you need some eccentric adapter to fit the engine or it will fit using concentric BB adapters?
I think I have discussed this with you since this post, but FYI for everybody, the smallest point (where the lip protrudes to fasten the mount plate) is about 8mm... And an eccentric 41mm adapter will also add about 1-2mm Max of wall thickness, FYI

twiersum   1 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by twiersum » May 14 2019 11:09pm

Does anyone have the input/output specs in V for the torque sensor?

varga.d   1 µW

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by varga.d » May 15 2019 2:14pm

What do you think about 350W48V? (https://www.aliexpress.com/item/okfeet- ... 2e0e05FK6F).
Could it be, taht a 36V engine controller has been converted to 48V? Do you have any experience with this? Which 48V battery (Ah) would be suitable for a 50 km flat trip?

hefest   10 W

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Re: New "TSDZ2 Torque Sensor Central Motor"

Post by hefest » May 16 2019 12:43pm

Last night finished the conversion but it was raining outside. Today finally made first test run. Oh man, it's much better than I expected. I imediatelly went to the 7% inclined 400 meters stretch to test and in turbo mode without much pushing it's a breeze.

Then I changed the limit to 40km/h and on a flat in 7th gear ( shimano nexus 8 ) achieved that speed in a matter of few seconds.

Motor is quiet enough, having in mind others complaints didn't expect it to be that quiet.

First negative thing I noticed is power delivery in speed and turbo mode. There is a lot of surging if you press the pedals even slightly harder. No wonder that blue gear is failing that much. I guess open source firmware is going on it sooner than I planned.

All in all, excellent little motor.

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