Vehicle seats get oscillation runaway when physics FPS is low

Bug Reports Studio Bugs
1

So, I’m testing my monorails and it’s very laggy. I apply power and almost immediately the wheels experience runaway oscillation. I’ve created a script to destroy wheels that are experiencing runaway oscillation, so I throttle down and it allows me to continue. I throttle up again and immediately it starts to have runaway oscillations again. I did the same test online where my FPS was considerably better, and the behavior did not occur at all.

Possible explanations for this behavior: the I term of the VSeat PID is tied to real-time and not physics-time.

Possible fixes: lower the I term in the VSeat PID or change the error collection from real-time to physics-time

2

I’m curious, what is runaway oscillation? Is that with occurring with surface motors for your wheels?

I’m not sure, but is this the problem I’m having with my wheels here?

External Media

3

when I say “runaway oscillation” I’m talking about how the wheels and stuff will form an angry swarm of bee-wheels and throw the entire thing into the air.

4

Ohh, haha. Gotcha. I know that feeling. My problem is not that type of oscillation, then.

5

I don’t mean to derail the thread, but that’s so cool.
Looking at it go makes me think of LEGO Mindstorms. All it’s missing is an orchestra of electric motors.