New "Lingbei MM28.250 torque sensor mid drive"

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
SlowCo   100 kW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by SlowCo » Feb 04 2020 12:19pm

dodjob wrote:
Feb 04 2020 11:38am
@slowco that's an excellent proposition. The tdsz2 is very nice for range. It's pretty noisy and lack torque but it does make wonders for battery consumption :)
The TSDZ2 probably only lacks torque at the legal 250W limit on standard firmware :wink:
Although I have no experience with that mid drive myself it seems that the open source firmware does wonders for power and rideability.

Griepje   10 µW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by Griepje » Feb 04 2020 12:30pm

Thanks for the replies.

I use it mostly in flat but windy circumstances doing about 200 km a week teaching piano at home. But also for holidays with tent and everything. Don’t need to go very fast but get uphill without killing myself.
With not too much headwind i’m going about 25km/h averich without motor.

casainho   10 GW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by casainho » Feb 04 2020 12:47pm

Griepje wrote:
Feb 04 2020 12:30pm
Thanks for the replies.

I use it mostly in flat but windy circumstances doing about 200 km a week teaching piano at home. But also for holidays with tent and everything. Don’t need to go very fast but get uphill without killing myself.
With not too much headwind i’m going about 25km/h averich without motor.
You can try TSDZ2 with our OpenSource firmware that implements FOC and so it is very powerful as also has most efficiency possible, meaning higher battery range. Also, you can install the motor temperature sensor to be able to use it at max power like 1000 watts. Also there is no speed limit, I get to 50km/h on flats using a 50T chainwheel.

For long travels like holidays, you can optimize the battery discharge, taking most possible of the battery or even take extra batteries in any voltage or currents combination, our firmware is very flexible on this. You configure all parameters directly on the display.

Also TSDZ2 repair parts are very cheap and you can buy online from many sources. We have a wiki page with a lot of details about maintenance, everything we know about this motor is in the wiki:

https://github.com/OpenSource-EBike-fir ... _wiki/wiki
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of the Flexible OpenSource firmware for EBikes: TSDZ2 mid drive motor, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.

If you like my work, please consider making a donation. I am being using the donations to buy needed resources for my developments. My paypal: casainho AT gmail.com.

Griepje   10 µW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by Griepje » Feb 04 2020 1:33pm

I don’t think i will need more than 350 watts so i might cope without temperature sensor :D
The noisy thing worries me a bit though.

casainho   10 GW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by casainho » Feb 04 2020 2:03pm

Griepje wrote:
Feb 04 2020 1:33pm
I don’t think i will need more than 350 watts so i might cope without temperature sensor :D
The noisy thing worries me a bit though.
It is noisier than an hub motor but as silent as Lingbei.
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of the Flexible OpenSource firmware for EBikes: TSDZ2 mid drive motor, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.

If you like my work, please consider making a donation. I am being using the donations to buy needed resources for my developments. My paypal: casainho AT gmail.com.

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dodjob   1 kW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by dodjob » Feb 04 2020 3:30pm

casainho wrote:
Feb 04 2020 2:03pm
Griepje wrote:
Feb 04 2020 1:33pm
I don’t think i will need more than 350 watts so i might cope without temperature sensor :D
The noisy thing worries me a bit though.
It is noisier than an hub motor but as silent as Lingbei.
The ones I have here are definitely way way louder than the lingbei, even with regrease. The lingbei is really more silent., Specially at low rpm. The bbshd is the boss for silence, but too, way to much power per wh at low power.
Felt beer-cruiser MAC 8T lifepo4 36V12AH 12FETS4110 http://www.bavarian-ebikes.com

casainho   10 GW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by casainho » Feb 04 2020 3:40pm

dodjob wrote:
Feb 04 2020 3:30pm
casainho wrote:
Feb 04 2020 2:03pm
Griepje wrote:
Feb 04 2020 1:33pm
I don’t think i will need more than 350 watts so i might cope without temperature sensor :D
The noisy thing worries me a bit though.
It is noisier than an hub motor but as silent as Lingbei.
The ones I have here are definitely way way louder than the lingbei, even with regrease. The lingbei is really more silent., Specially at low rpm. The bbshd is the boss for silence, but too, way to much power per wh at low power.
Maybe you didn't tested with our most recent OpenSource source firmware and the blue gear.

Also there most recent versions of TSDZ2 are more silent because they changed the main gear for that.
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of the Flexible OpenSource firmware for EBikes: TSDZ2 mid drive motor, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.

If you like my work, please consider making a donation. I am being using the donations to buy needed resources for my developments. My paypal: casainho AT gmail.com.

Griepje   10 µW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by Griepje » Feb 12 2020 1:03pm

Yesss

Ordered a tongsheng.
Gonna start with lcd5 with original software and see.

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dodjob   1 kW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by dodjob » Feb 13 2020 1:27am

casainho wrote:
Feb 04 2020 3:40pm
dodjob wrote:
Feb 04 2020 3:30pm
casainho wrote:
Feb 04 2020 2:03pm
Griepje wrote:
Feb 04 2020 1:33pm
I don’t think i will need more than 350 watts so i might cope without temperature sensor :D
The noisy thing worries me a bit though.
It is noisier than an hub motor but as silent as Lingbei.
The ones I have here are definitely way way louder than the lingbei, even with regrease. The lingbei is really more silent., Specially at low rpm. The bbshd is the boss for silence, but too, way to much power per wh at low power.
Maybe you didn't tested with our most recent OpenSource source firmware and the blue gear.

Also there most recent versions of TSDZ2 are more silent because they changed the main gear for that.
Hi there :)
I indeed didn't test the Opensource firmware on them :). For the version, do you know when they start to build the blue gear? The last unit I tried is about 6 month old directly from them for test purpose.
As stated before, the motor isn't bad here, just low(er) torque and
Very noisy :)
Thanks for the heads up!
H.
Felt beer-cruiser MAC 8T lifepo4 36V12AH 12FETS4110 http://www.bavarian-ebikes.com

Griepje   10 µW

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Re: New "Lingbei MM28.250 torque sensor mid drive"

Post by Griepje » Feb 15 2020 12:46pm

I received the tongsheng yesterday and installed it on my bike. Works very well but doesn’t really fit because its really tight around the bottom bracket and my bike is abit bulky there.

Has the linbei motor more space around the bottom bracket?

The tongsheng has more then enough power for me. Limited the speed to 28 km and the currend to 8 ampere and I don’t nead more then the second support level against quite a bit of headwind. ?

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