Brake sensor and Impulse Evo

Woosh

Trade Member
May 19, 2012
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wooshbikes.co.uk
I generate a sine wave 3V and pass through a full wave rectifier.
is it microcontroller based? If it is, then it may be worth your time creating the code for it. @SW, that video you linked to is in German. I just wonder if you speak German.
 

soundwave

Esteemed Pedelecer
May 23, 2015
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no but subtitles sort of work in English but with can bus you can see the signals but it wont let you wright to the controller as the fkn thing is locked.

will be less hassle to rip out the controller and use a phase runner ect or see if peter can get the parts to fix it but peter is on a road trip atm round the eu but think hes back next week.
 

Laerke

Finding my (electric) wheels
Apr 16, 2023
13
4
most of these motors use can bus signals like bosch brose ect and yamaha motors use uart same as the bafang mid drive diy motors.

you can get in to the can bus with a Arduino setup

Sure, but to interpret the messages is another thing. They just send a hex code, no human readable text.
 
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Laerke

Finding my (electric) wheels
Apr 16, 2023
13
4
is it microcontroller based? If it is, then it may be worth your time creating the code for it.
I have a function generator. Once I understand the logic behind this, can bring it to microcontroller or FPGA.
 
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Woosh

Trade Member
May 19, 2012
20,365
16,870
Southend on Sea
wooshbikes.co.uk
What kind of wave form (sinusoidal, sawtooth, trapezoidal or Square wave) starts the motor? Does it expect a positive minimal value to avoid limping mode?
 

AntonyC

Esteemed Pedelecer
Apr 5, 2022
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Surrey
Can the trike accept the motor yet? It needs to be under load to see clearly how it behaves, because of the torque controller.

The way the motor responds off-load to the torque sensor and PAS sounds as though it's all working just fine, potentially. In detail what do we know about the system that still doesn't look right, and how should it be?
 

Laerke

Finding my (electric) wheels
Apr 16, 2023
13
4
What kind of wave form (sinusoidal, sawtooth, trapezoidal or Square wave) starts the motor? Does it expect a positive minimal value to avoid limping mode?
It expects some slope. The sinusoidal and triangle waves are accepted and the square is not. It starts reacting on > 2V, but that's because I have diodes. Will try later with pure sin wave and an offset without rectifier.
 
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Laerke

Finding my (electric) wheels
Apr 16, 2023
13
4
Can the trike accept the motor yet? It needs to be under load to see clearly how it behaves, because of the torque controller.

The way the motor responds off-load to the torque sensor and PAS sounds as though it's all working just fine, potentially. In detail what do we know about the system that still doesn't look right, and how should it be?
No, the trike is not ready. But I tested the motor on a test bench and saw that even a significant load did not trigger the assistance. The settings are "ULTRA" and climb assistance at maximum.
There is a red LED inside which is blinking after power on (not at once, but after a second). I do not know what does that mean. It might indicate for example that calibration of the torque sensor fails, but this is just guessing. All the rest seems to work as it should - RPM measurement, speed measurement, battery measurement and the motor driver.