Eggie said:
....during all that time keeping one foot on a pedal… so the torque sensor didn’t calibrate correctly at the “reboot”.
.... was indeed the speed sensor. It seems really sensitive to positioning since it’s a matter of millimeters ......
About the heating: the tsdz2 never really feels hot on the cargo bike (I have yet to install some kind of temperature measuring). But I have a tsdz2b installed on a normal city bike and after a ride it feels kinda warm. That feels strange to me as I’m my opinion the tsdz2 should give more power since the cargo bike is much heavier (and often contains 2 kids and bags). So maybe there’s a better heat management in the tsdz2b.
:thumb: Thanks for the feedback. I'm glad you have solved your problems.
These two are most the cause of this sort of problems, that was why I mentioned these firstly.
About heating
The older Tsdz2 bare motor is isolated from the housing and that is why you don't feel the heat of that motor.
With heat conductive material between bare motor and housing you improve the motorcooling because the aluminium housing is used as a massive heatsink which will be cooled by airstream. But that housing will be hotter.
I don't know if the Tszd2B has some improvements with the bare motor assembly, which gives a better connection with the motorhousing.
If that is the case, the motorhousing will be hotter too which indeed means that the heat management of the tsdz2B is improved.
I know with TsdzB the blue gear is changed to a white gear without clutch and the clutch in the maingear is changed (doubled).
So maybe there is are some small changes too with the motorassembly inside the housing.
At first the space between Tsdz2 motorflanges and housing was about 1.5mm, the latest version was this decreased to almost 1mm.
So maybe with the Tsdz2B that space it is now reduced to zero.
But to be sure we must wait for a confirmation if someone have to open the motor or want to add heat conductive material.