Recent content by NIPSEN

Hi Casainho, i have read the commit but i don't understand where you do you solved the boost bug, can you explain me ?

I prefer manual because I want to make sure I put enough pressure on it before I trigger. It is possible that I may be the one changing the type of triggering by mistake, but I would be surprised. It was quite annoying, it happened about once in 10 welds.

hi there, I have juste finish my first battery with MiniSpotA, 13S5P (LG HG2). Pure nickel strip 0.15mm x 6mm (5 meters ! :shock: ) Current time : 3ms Manual trigger. The only issue is that the MiniSpotA switch from "Manual Switch" to "Auto" by himself.

Thanks for your feedback. :thumb:

It's a great step forward, good work! :thumb:

Unfortunately, I think our engine is limited by the BEMF and this limit is unbreakable. If you only reach 480erps instead of 522, is due to the fact that the engine was not running idle (load), the rpm stabilizes at the balance of forces.

Thank you for all this valuable informations, if I understand correctly, it respects this graph quite well:

Strange that with a PWM at 254 you only have 300W motor.

Hi guys, About the shudder issue, I think you reach the maximum current limit, so controller start to decrease duty-cycle (every 12 cycle of 64µs if necessary), and then increase (because signal like torque pedal may be noisy, or under battery current limit) and you feel it, like micro torque...

Oh sorry guys, it's 104 mOhms for 13S5P (8mOhm for 5P multiply by 13). :oops:

It seems that the internal resistance of one cell is 40mOhm, as you have 13 in series, this gives a total resistance of 520mOhm.

This is not wrong, it is an approximation, and it is as accurate as the one currently used.

Thank you for taking the time to share these very informative documents, I am discovering an exciting field. I've read STM document (2,5 times) and your measurement, that's what I remember: _ The current in the phase is not constant during the whole PWM On, so it is interesting to measure the...

Thank you stancecoke for your explanations, I continue to improve my understanding of the source code, I still have a little trouble distinguishing the difference between battery current and motor current, but I keep persevering. Regards, NIPSEN

Hi, I was reading the source code, really very interesting in passing, and I found a small typo, when you calculated the pedal torque for each unit of torque measurement, you considered a gravity of 9.18 instead of 9.81m/s². This gives a value of 55 instead of 52 for #define PEDAL_TORQUE_X100...