Rover AP veers side to side

Question

Rover AP veers side to side

larkvi opened this issue 9 years ago · 3 comments

larkvi commented 9 years ago

KSP: 1.1 Prerelease build 1196

Problem: Using Rover AP, steering moves violently from left to right

Mods Installed: MJ dev574, Buffalo0.2.8, MM 2.6.21

Reproduction steps: Remove seats from prospector rover, put drone core on in correct (forward) orientation. Engage heading control and speed control.

Log: https://www.dropbox.com/s/0242s5g63aor29q/MechJebBuffalo_RoverPilotIssueLog2.log?dl=0

Also posted in thread: http://forum.kerbalspaceprogram.com/index.php?/topic/111978-105-anatid-robotics-mumech-mechjeb-autopilot-256-23-feb-2016/&do=findComment&comment=2509160

BloodyRain2k · Answer 1 · 2016-04-23T19:28:34.000Z

Using different PID values for the heading controller fixed that for me,
also attaching the pod so that the nav ball is not on the side, just
mentioning that because I don't know if that's included in your
"correct" forward.

I used P 0.01, I 0.001, D 0.001 which can be adjusted in the Rover AP >
Waypoints > Waypoints Window > Settings.
Could need a bit of refining though as it still slightly oscilates.
Traction detection is also broken now, gotta fix that somewhen.
Overall am I surprised though how much still works despite the
wheelmodule being rewritten but I guess Sarbian tried to fix as much as
he understood, or someone else did, dunno.

On 12.04.2016 06:20, larkvi wrote:

KSP: 1.1 Prerelease build 1196

Problem: Using Rover AP, steering moves violently from left to right

Mods Installed: MJ dev574, Buffalo0.2.8, MM 2.6.21

Reproduction steps: Remove seats from prospector rover, put drone core
on in correct (forward) orientation. Engage heading control and speed
control.

Log:
https://www.dropbox.com/s/0242s5g63aor29q/MechJebBuffalo_RoverPilotIssueLog2.log?dl=0

Also posted in thread:
http://forum.kerbalspaceprogram.com/index.php?/topic/111978-105-anatid-robotics-mumech-mechjeb-autopilot-256-23-feb-2016/&do=findComment&comment=2509160

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#715

sarbian · Answer 2 · 2016-04-23T19:43:04.000Z

I did the basic conversion to the new modules. The steering clearly need more work now...

BloodyRain2k · Answer 3 · 2016-04-23T20:10:21.000Z

You did good for not knowing most of the crap I added onto the Rover AP :P But I think it's fine as long as someone figures out better PID values. There didn't change much aside that we got slipping now, though the automatic traction control might irritate the PID a little. Dunno, ALL of my PID settings were pure "guess, edit, try, repeat until brain's mush and repeat later".

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