Quote:
Originally Posted by What's_nitro?
I can't find a picture (because they don't make it anymore), but I have an ammeter for my car stereo (made by Autometer) that uses some type of inductive coil around the main power wire to measure the current. It doesn't add resistance. It would add size/complexity/cost, however.
Monitoring voltage drop in order to limit current would be tough due to the variance in C-rating of different cells.
|
exactly... something like the eagletree or equivalent... if integrated into an esc, it would make a nice blackbox [logs for everything] and would help the main software to know when to stop pushing [to prevent damage] or when to punch hard [to prevent 'chattering']... not to mention that being capable of adjusting the average current drain to your likings is what would be a REAL torque-clutch... 100% usefull for racing, as traction would be dialed without the inaccurate time-delay routines that are used today, and without sacrificing topspeed too...
i am not sure if the feedback circuit would be fast enough to catch up with current surges or voltage spikes though... these things happen really fast, and the sampling frequecy will need to be equivalently fast [eagletree does 10/sec only], probably to the scales of pwm fet switching [8khz and up]...
i think this step will be realized sometime; just as it happened with voltage monitoring of the input [mandatory for lipo application; wasn`t needed for nimhs back then]...