Search found 267 matches

by knutselmaaster
Oct 08 2019 7:03am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

You're absolutely right. Too low cadence is the main cause of problems, complaints and premature wear for mid motors. Manufacturers tell everybody in their marketing that mid motors are way better than hub motors because they, so they say, always run in optimal speed. In reality, it all depends on t...
by knutselmaaster
Oct 03 2019 12:57pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

Okay. I think I have figured out why I only sometimes get power. It seems that if I power on at different crank alignments I get different base torque sensor readings and as I rotate the cranks then the base level changes. In my earlier testing my max rE1 I could get by standing on the pedals was a...
by knutselmaaster
Sep 30 2019 6:53am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

Hi all, first post here :-) I'm strongly considering this motor for my first ebike build. I'm confident with electronics tinkering and firmware flashing from other hobbies, so this one should be no problem. The base bike will be a Rockrider 540 from decathlon. ( Photo of bottom bracket here ) Coupl...
by knutselmaaster
Sep 20 2019 2:27pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

Use some loctite on the thread of the 2 screws, put some washers to assure the plate is tightened 100% flat. Put some grease on the big ring's thread and tighten it as strong as you can, don't hesitate to make the special tool a bit longer (using a tube for example) to be able to put more torque on ...
by knutselmaaster
Sep 18 2019 3:43am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

There are some pictures, early in this topic, of an alternative way to fix the motor at the rear.
by knutselmaaster
Sep 17 2019 2:33am
Forum: E-Bike Technical
Topic: Questions about inner controller of BMSBATTERY
Replies: 8
Views: 306

Re: Questions about inner controller of BMSBATTERY

The 201rpm 36v does about 20mph @ full 36v battery already (42v) on that wheel size. (No load)
by knutselmaaster
Sep 16 2019 2:08pm
Forum: E-Bike Technical
Topic: Questions about inner controller of BMSBATTERY
Replies: 8
Views: 306

Re: Questions about inner controller of BMSBATTERY

The best thing to do is to use your display to set max power, according to the motor. The (135mm wide) q100cst is only a 250w rated motor so you'd better not give it 100% of a 6 MOSFET controller (under heavy load) The 142mm version of the q100cst (which is in fact a q100h-cst) is a 350w rated motor...
by knutselmaaster
Sep 16 2019 1:04am
Forum: E-Bike Technical
Topic: Questions about inner controller of BMSBATTERY
Replies: 8
Views: 306

Re: Questions about inner controller of BMSBATTERY

I use the so called inner controller for the 50 cell hailong cases quite often, it is the same as the s06s controller in both power and behaviour.
This hailong2 case controller seems to be similar.
by knutselmaaster
Sep 13 2019 3:34pm
Forum: Battery Technology
Topic: 30 18650 cell case
Replies: 2
Views: 182

Re: 30 18650 cell case

Thank you for your reply. Indeed, that would be a solution, but it would take quite a lot of time to make and a constant quality for a small series would be hard to obtain. Another solution would be to find "some box" which happens to have the right volume and adapt it where needed. But I'm looking ...
by knutselmaaster
Sep 13 2019 6:47am
Forum: Battery Technology
Topic: 30 18650 cell case
Replies: 2
Views: 182

30 18650 cell case

Hello all,

I'm searching all over for a 30 18650 cell case.
I would like to build 10s3p batteries (so there must be some room for a BMS and a charger port.
Does anyone knows where to find this?

Thanks in advance for your replies.
by knutselmaaster
Sep 12 2019 1:18pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: Torque sensor totally destroyed

r0mko wrote:
Sep 12 2019 10:58am

Of course I did some maintenance and once replaced a broken sprag clutch (that was epic BTW: gas torch, lots of heat and ice bucket). But nothing really special, just open once a year and regrease everything.
Could you please tell me what grease you used?
by knutselmaaster
Sep 09 2019 3:16pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

I kept a wattmeter on the original firmware for more than 2 years and I know the engine behavior very well. The 36v motor was no more than 540w, and the amps setting was completely inoperative. That is my impression too... 540W is still 13A @ full charge and even 16A at low battery, which is quite ...
by knutselmaaster
Sep 09 2019 1:14pm
Forum: E-Bike Technical
Topic: KT-LCD5 malfunction?
Replies: 13
Views: 639

Re: KT-LCD5 malfunction?

Or try all combinations from 000 to 999...
by knutselmaaster
Sep 08 2019 4:18pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

The controller is physically not capable of 32 amps. I believe that 18 amps is all it can put out. The setting on the stock firmware doesn't seem to work, I've tried it on several builds and feel no difference in power between max and min settings. Hmm, mine seem to work. I have 3 motors. One is st...
by knutselmaaster
Sep 08 2019 2:49pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

The controller is physically not capable of 32 amps. I believe that 18 amps is all it can put out.
The setting on the stock firmware doesn't seem to work, I've tried it on several builds and feel no difference in power between max and min settings.
by knutselmaaster
Sep 04 2019 2:29pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

I do not think it is possible. The torque sensor must feel a resistance, otherwise there is no torque. On the descent, for example, the engine does not start by turning the pedals ... the wheel does not resist. Ok, thanks. I've tried to 'hold' the chainring but I guess it's not an optimal setup ;) ...
by knutselmaaster
Sep 03 2019 5:30pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

I do not think it is possible. The torque sensor must feel a resistance, otherwise there is no torque. On the descent, for example, the engine does not start by turning the pedals ... the wheel does not resist. Ok, thanks. I've tried to 'hold' the chainring but I guess it's not an optimal setup ;) ...
by knutselmaaster
Aug 24 2019 9:52am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

It must be very clean, noises often come from filth, a grain of sand will make it crack for example.
Apply a small amount of grease and tighten firmly, retighten after first usage.
by knutselmaaster
Aug 14 2019 12:46am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

When a crank is tightened as it should, it doesn't ware. Sometimes the bolt comes loose and if one continues riding with a loose crank, it will deform (in this case, the square hole will get rounded) and will need to be replaced. Check from time to time if the bolt is still firmly tightened to preve...
by knutselmaaster
Aug 06 2019 1:05pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

While converting my Nexus 7 IGH bike to 8 speed Nexus I came across an interetsing IGH hub. Shimano makes a 5 speed IGH. It's interesting because it's E bike rated. Probably world spec. 350W. 1st gear is direct and the rest overdrive, which makes it suitable for folding bikes with small dia wheels....
by knutselmaaster
Jul 26 2019 12:48pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

How fast do you have your motor broken? My motor broke down when I had driven 80km. I drove 38 km yesterday and today I had driven 40 km when the rattling noise was started. I turned my nose towards home and after ten kilometers the assist disappeared. The final result you can be seen in the pictur...
by knutselmaaster
Jul 24 2019 6:32am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

Wow, that really looks great!
by knutselmaaster
Jul 10 2019 4:13pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

The max rotation speed of any electric motor is indicated for a certain (nominal) voltage. Raising the voltage raises the rotation speed (proportionally). The 90rpm is at nominal voltage (36v, 48v) When the battery is fully charged, the voltage will be higher, so also the RPM of the motor. Example (...
by knutselmaaster
Jul 01 2019 4:52am
Forum: E-Bike Technical
Topic: Hall Sensor Connections 24fet4110 Infineon / Cromotor
Replies: 23
Views: 10155

Re: Hall Sensor Connections 24fet4110 Infineon / Cromotor

Accountant wrote:
Mar 08 2013 5:14pm
Hope this will prevent future problems.

Image


You need no more than 4 steps.
Digging up this old post, does someone have the picture in a readable quality, please?
I cannot find it anywhere on the net...
Thanks!
by knutselmaaster
Jun 02 2019 6:57am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5944
Views: 497711

Re: New "TSDZ2 Torque Sensor Central Motor"

It is a nexus 8. Chainline is perfect. Everything is original, no problems with the space between the motor housing and the chainring, no problems with the space between the chainring and the bashgard. I used the 42t chainglider in the front (short version) and the one suitable for 18t in the rear....