General discussion

I have been interested in using VESC for low cost e-bike projects for quite some time, but the 60V limit has always been a major problem. I see that TI now has the new 100V DRV8350 shipping and it seems rather similar to the DRV8301 VESC uses. The DRV8350 comes in 40-Pin WQFN package rather than the 8301's 56-Pin HTSSOP package so it's not quite a drop in replacement, but it seems close.

A quick question: If my VESC is connected to hub motors and the whole thing is too heavy to mave by hand, is it safe for the vesc to roll it on the wheels?

When running 2 VESCs connected by canbus the slave doesn't respond as expected.  Master is set to UART+PPM and set to duty cycle mode and works as expected.  Slave is set up using wizards but does not appear to run in duty cycle control.  I've also tried setting up manually with same result.  Firmware 1.07, 1.08 tested.  Not tried with older versions.

Hi,

I am looking at using the VESC6 and I see that there is a ADC3 option. I was wondering if this could be used with a brake switch from a mechanical brake lever to disable the throttle so the motor isn't engaged as the mechanical brake is applied.

Is this even possible? I plan on using the ADC1 for the twist throttle and the ADC2 for a thumb throttle for regen braking.

TIA

Jeff

I've been having some trouble getting the speed control to work properly with my setup and would appreciate your input , this is the hardware that I am using:

Hardware:

• Dual FSESC 6.6 
• Hub motor (800W) with hall sensors (https://www.uumotor.com/15-inch-off-road-wheelbarrow-geared-hub-motor.html)

Firmware: 3.54

and I get this behaviour: 

I setup my VESC with a sensored hoverboard motor.

Attached are my settings.

Openloop mode works fine, but trying to run in current control mode with no load on the motor, the motor spins up smoothly until duty cycle maxes out and the current plummets. Here is a screenshot of that:

Any ideas what might be happening here?

This is well outside the typical skateboard question.  I've used VESCs of varying flavors successfully for various combat robots in the past.  However, with our 250 pound robot, we're continuing to have spin up issues for the weapon. This is a large 80mm sensorless motor, spinning about 60 pounds of steel in BLDC mode, using PPM/Duty Cycle No Reverse.  We get cogging at startup, and if we really feather the throttle, we can get it to spin up most of the time, but it's still very spotty.

I've got a VESC 4.12 that's failed.  I've replaced it, but would like to learn how to repair it myself.  I have hobbyist level electronics skills, reasonable soldering equipment, a reasonable oscilliscope, and can more or less make my way around a schematic.  What I'm hoping for is to learn any tips on what items commonly fail on the VESC 4.12 and whether there are any tips on how to diagnose (either functionally or with my scope).

hello,

I have the following motor and quadrature encoder 

motor: areodrive turnigy SK3 6374 149
encoder: CUI AMT102 (it's a quadrature encoder with a 2048 * 4 ticks per revolution)

on a VESC 4 board

Can i get position control throught UART with this?

thanks

Hello,

When running my motor, I have much better startup with current control, but then cannot reach max throttle. With duty cycle, I can reach max throttle, but have high current transients and occasional high current startup stalls.

• Is there a ERPM or other limit for current control?
• What settings can help with current control at higher currents?