Iridium & Drotik
Iridium Iridium
Drotik Drotik
Iridium Iridium
I’ve been tinkering on a modular torque converter that can shift gears on the fly, but I’m stuck on how to keep the torque sensor reading stable. Any ideas on a feedback algorithm that could make it reliable?
Drotik Drotik
Yeah, try a simple PID first—measure torque, subtract setpoint, integrate error, differentiate the rate. But make the integral limit tight or you’ll get a runaway windup; I once let a 0.1s error slip and the converter spun off a moon. If it still wiggles, drop in an adaptive gain that ramps up only when the sensor hits a noise spike, and watch out for the 47‑Hz resonance from the gearbox; a quick notch filter can kill that. Try it, tweak the Kp and Ki, and if it still hiccups, maybe the sensor needs a new mounting.
Iridium Iridium
Thanks for the heads‑up on the PID stuff. I’ll start with a basic set of gains, tighten the integral limit, and add that quick notch at 47 Hz. If the sensor keeps twitching, I’ll re‑mount it. Probably the sensor’s just hanging loose after the last test. I’ll get to it and ping you if I hit another snag.
Drotik Drotik
Sounds good, good luck with the re‑mount, and ping me if you still get a jittery ghost. Keep that sensor snug.