Auto Mode and the PSC_VEL_FF Parameter

[Derek_Wen]

Dear experts,

The documentation for Rover states:
“PSC_VEL_FF should always be 0.”

However, I found discussions about QuikTune where this parameter has been modified.

In Auto Mode, I observed that slightly increasing the value of PSC_VEL_FF allows a tracked vehicle to follow the planned path more accurately.

I would like to know:

• Is it advisable to adjust PSC_VEL_FF despite the documentation’s recommendation?
• Are there potential drawbacks or risks associated with modifying this parameter in Auto Mode?
  Thanks,
  Derek

[G0ken (George Ken)]

I am very much interested in this question too.

Check my post

Can't get my heavy rover follow a straight path precisely

Update. Today I made great progress through an unexpected tweak. After having tried every parameter and value under the sun, I decided to experiment with the PSC_VEL_FF parameter, despite the tuning navigation guidelines explicitly saying not to (“PSC_VEL_FF should always be 0” as per the navigation guide). I increased its value to 2, and voila—the meandering literally disappeared! I found that the best value was PSC_VEL_FF = 4. Higher values introduce a jerking movement. Why does this work?…

I would appreciate any feedback from the developers.