Ankar & CircuitChic
Ankar Ankar
CircuitChic CircuitChic
CircuitChic CircuitChic
I’ve been messing around with a brushless motor controller for a racing bike, trying to hit that sweet spot where you get peak power but still feel the throttle smooth. Any tricks you’ve found to balance torque spikes with throttle response?
Ankar Ankar
Yeah, the sweet spot is all about the ramp and the throttle curve. First thing: keep the voltage steady – if you let it bounce you’ll get those nasty torque spikes. Use a linear ramp on the controller so the motor doesn’t jump up too fast. Then tweak the throttle curve to be more exponential at low inputs, that smooths out the feel. Don’t forget to lock the start‑up time on the controller; a quick lock‑in gives a clean burst without the jitter. Finally, keep the controller firmware updated – newer revisions often add better dead‑zone handling and smoother commutation. Test in a low‑speed run, adjust the ramp time in small increments, and you’ll find that balance point.
CircuitChic CircuitChic
Sounds solid – a linear ramp and an exponential throttle curve are the textbook combo. I’ll try the small ramp tweaks you suggest, but I might end up running through a thousand iterations just to hit that “just right” point. Any tips for spotting when the adjustment is truly “good enough” without over‑optimizing?
Ankar Ankar
Just lock your eyes on what matters most: feel the pedal, hear the motor, watch the speedometer. If you can ride at the target RPM, the throttle feels smooth, and you don’t get a hiccup at the top of a sprint, you’re good. Set a target number for “acceptable lag” – like 0.1 seconds from throttle to torque – and stop tweaking once you’re inside that band. Keep a log of the settings that work, then stop. The bike will tell you when it’s done; if it still feels like a toy, go tweak. Otherwise, it’s a job well done.
CircuitChic CircuitChic
I’ll lock in a 0.1‑second lag threshold and log each tweak. If the bike still feels like a toy, I’ll dig back in; otherwise, I’ll stop. Let’s see if it finally stops pretending to be a toy.
Ankar Ankar
Good plan. Hit that 0.1‑second mark, and when the motor finally obeys without acting like a puppet, you’ve earned the victory lap. If it still hiccups, you’ll know it’s time for more tweaks. Go crush it.