Hello,
I'm trying to get my Sempu T4 Torque sensor working along with a regular throttle, but i'm struggling with the last part of the setup.
I have:
- KT24/36SVPR-HRD01 controller flashed with the "torque_from_X4" branch of the code
- Sempu T4 torque sensor 8-60v version
- 36v battery
- Bafang G310 rear motor
- BluOsec app
I have made the following connections:
- Sempu torque signal to X4
- Sempu PAS signal to PAS input
- Sempu power to 36v battery (positive to blue display cable)
- Slimline half twist throttle to normal throttle input
- External speed sensor connected to the motor speed wire
- HC-05 powered via DCDC and wired to the board
I have confirmed that the the motor spins smoothly and works correctly. I've independently confirmed that the PAS aspect of the Sempu works and the separate twist throttle works. I have the BluOsec app working well. But when i try to set up the settings for Torque Sensor and Throttle, it does not work as expected. The throttle works, but the torque sensor does not. If I have the 'Torquesensor' option off, the Sempu engages the motor when the Sempu spins with no weight and in both directions. I have confirmed that the torque sensor is working as the value in BluOsec rests at 310 and increases to around 350-380 when operated on the test bench with some downward pressure. Incidentally, i also noticed the slight fluctuation in resting value, depending on battery voltage, so i will add a DCDC supply to normalise this.
1. What settings are necessary to make this setup work correctly?
2. Is there a way to alter the range of the x4Value torque input, or must it only be controlled via TQ Calib?
3. What does TQ Calib refer to, for instance, what is the range? It's currently set to 1500, but is this just a multiplier?
4. How do i adjust the speed sensor for my 6 pole Bafang motor as it currently reads 6x too fast. It's connected to input x5
5. Is it the BluOsec reliable for setup configuration, or should i use the USB until things are stable?
6. I noticed PAS threshold was reading around 2.5 in BluOsec in both directions. Is it necessary to adjust this from the 1.9 that's currently there?
Here are my current settings: