You are here

General discussion

Could use some help tuning for low speed

Submitted by Berrie on Tue, 2025-07-15 20:24

Hi,

I have two FLIPSKY Mini FSESC6.7 controllers, and have them paired with two 4" BLDC wheels to control a remote controlled in/outdoor robot with a HotRC DS600 remote.

The motors have a stated max rpm of around 700, and I can control the motors nicely at above 100rpm.

This means I can control the robot at speeds of about 1.2mph to 8mph.

For indoor use however, it would be nice if I could control at less than 0.5mph or 40rpm.

If I try to go that low, the motors will start/stop/start/stop fast and there is no smooth motion.

How to Create Resistance Using a BLDC Motor for a Stationary Bike Conversion?

Submitted by Prayoga on Tue, 2025-07-01 01:23

Hi everyone,

I'm working on a project to convert a regular bicycle into a stationary exercise bike, and I'm exploring the possibility of using a BLDC motor controlled by a VESC to create resistance on the rear wheel.

The idea is that as the rider pedals, the motor provides some form of load or drag to simulate road resistance — similar to what you'd find in commercial indoor bike trainers.

Flipsky and Trampa getting two very different detected resistances on same motor!

Submitted by colmor on Wed, 2025-05-28 22:52

I have a two identical Flipsky BLDC motors: sensorless 85165 inrunner 200KV. They are rated 19kw max, 8500w continuous. I'm running 52v and 300A max.

I have two Flipsky 75350 FSESC's which each detect the motors each right around 7 mOhm and detected Inductance is 7.6.
I also have two Trampa 75300 MKIV VESC which each detect the motors each right around 4.8 mOhm and the detected Inductance is 8.6.

Trouble with Sensorless Startup on Trampa 6376 160Kv Motors (VESC 6 Dual, FW 6.05)

Submitted by bojfik on Mon, 2025-05-26 14:35

Hi everyone,

I’m having a lot of trouble getting smooth sensorless startup with my setup and I’m hoping someone here has experience with the same hardware and can offer some tips.

My setup: VESC 6 Dual (Firmware 6.05, official)

Trampa 6376 160Kv motors (sensorless)

Trampa rear truck with their gear drive system

Mountainboard build

Problem:

Reversed polarity on one of my controllers when setting up

Submitted by jsherbz92 on Sun, 2025-05-25 15:16

Today was swapping my 75100 controllers over to another scoooter upon connecting them I accidentally reversed polarity on one one then for a sec then noticed now when I try set them up that polarity keep flashing red and blue as if it's having overcurrent issues and when I set up trust my settings up to 85 V to handle fully charged 72 V. It's after I write it revert back to 72 V and I can't get it to stay 84 and help.

Pages

Subscribe to RSS - General discussion