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It would be interesting to see a quantitative torque measurement

I disagree, motor assist felt by the rider is the motor torque, which in turn is proportional to phase current, Motor torque = Kt x I I - motor current Kt - motor torque constant, which is related to motor Kv I stand by everything mentioned in post #120, the only misunderstanding I had was...

I have familiarity only with the internals of FOC controllers (phase current controlled). For those if set current is 5A & load is less, then phase current is less corresponding to the load, motor will at highest possible speed for that situation, an example being giving slight/high throttle...

As far as I could make out from that figure, it is not as per my post. Wondering whether KT pas level is actually controlling battery current rather than motor current, like @Sparksandbangs is trying to achieve. It would be interesting to see motor phase current along with battery current &...

IIUC this is an FOC controller, is so, it cannot be called a bug, FOC algorithm implementation by default provides phase current control. If any other control, say like speed control (or battery current as intended above) an outer control loop (over the existing inner current [phase] control...

https://ebikes.ca/learn/pedal-assist.html gives a brief overview of various PAS systems

A technical interruption to non-technical thread ;), Tesla inverter brain is Texas Instruments chip, see a teardown @7:30

Along w/ a SPDT start up switch connected to both PAS. With that scheme some circuit gymnastics would be required to take EN15194 for a ride! ;)

Edited the previous post to be more inline with EN15194 Yes, it is due to the necessity of being compliant with EN15194, otherwise there are ways to achieve w/o modifying internal logic

Luna cycle's BBSHD that runs VESC has 2-wire quadrature PAS (https://ebikes.ca/learn/pedal-assist.html#SignalLevels), which helps the VESC in figuring out the direction. If a start up assist (toggle) switch is added, VESC firmware may be modified to check the status of the switch & upon...

Okay, deleted

It seems Canada & Australia (at least New South Wales) currently have 500W as the limit

Ebike (electric bicycle) usage is very less in India, almost everyone gives me an alien look upon riding it (in a relatively well developed city in the country, counted among the second level ones, Tier-2). Above reminded me about the analog bicycle situation here, people generally view it as...

To add, modern cars (irrespective of ICE or not) are the worst product w.r.t privacy per Mozilla report, https://foundation.mozilla.org/en/privacynotincluded/articles/its-official-cars-are-the-worst-product-category-we-have-ever-reviewed-for-privacy/

Small size electric pumps might be helpful, like this I have not used it, but a bicycle mechanic friend of mine has good opinion about it

Yup, seems DIY ones have SMD's soldered, only THT's have to be

I think component soldering would be required with the above This probably is in essence same as above, but with components assembled & enclosure Note that it is single channel only

I don't think it is possible to determine sine vs square observing the meter variations. There is a lag in calculating/displaying the average value, with a low frequency it would keep on varying and it can't reach either peaks (0 & 4V). And if a high frequency signal is fed, I expect the average...

DS211/DS212 looks similar to that, but it costs similar to PC based scope. There are DSO138 available here, cost when translated would be around 15 quid Note: I have used none of the above (EDIT: except PC based scope) With a true rms multimeter, it would have been possible to figure out...

No I think many of the scopes of the kind you linked has STM32 as it's processor and there are few open source DIY scope projects using STM32 boards