Braking failure

[MP36PH3S]

Whenever I apply brakes in OR it speeds the train up. When I apply throttle even in run 1 it gives me a wheelslip indicator. When I apply full throttle it slows me down. Engines this happens to are all of the SLI ATSF, BNSF, and UP engines as well as repaints, and the route it most occurs on is the SLI Seligman Sub although it happens on Scenic Sub too.
I will get a video up demonstrating what happens ASAP. In the meantime any help is appreciated.

[longiron]

Thanks for the report. It is really helpful when reporting a problem to attach the full Open Rails log file. It contains valuable information that can greatly assist the development team in debugging your problem.

Is this problem just with SLI engines, or is it a general problem with all ENGs? What's the FPS when this happens? Please take a look at this post for a possible answer: https://www.trainsim.com/vbts/showth...46#post1707246

[MP36PH3S]

Framerates are at 30 FPS. Goes down to 25 when I'm recording with FRAPs but it drags down FPS on even the best PC. Any repaint of the SLI Superfleet, Seligman Sub, Scenic Sub, BN Pack, and UP Pack engines as well as the originals experience this trouble. As a test I electrified Seligman in Route Editor and ran the Acela on it. Nothing happened.

[longiron]

Please attach a copy of the OR log file if you want the team to assist you. For the future, I have reached out to the SLI team to get one of their ENGs for Q&A testing.

[MP36PH3S]

Too big. I'll PM you.
A video of what happens in the sim:

https://www.youtube.com/watch?v=VZfrIhNxD8c&feature=feedlik

[twpol]

The brakes all appear to be on the emergency state (bit hard to be sure, video resolution is just too low to clearly read it). That's why your train isn't moving. :P

[MP36PH3S]

But you did not notice that the throttle is in idle. It is moving on its own.

[twpol]

Can't actually read that, but I can see that you're getting single-digit FPS which will be screwing up the physics badly.

[longiron]

But you did not notice that the throttle is in idle. It is moving on its own.

From what I can see from the video,

(1) the train brakes are in emergency, so you are not going anywhere until the brakes release. You need to wait until the brakes release. You can use a keyboard shortcut (most of the time) to immediately charge the train brakes via SHIFT + ?
(2) your are throttling up to try to get the train to move while the brakes are in emergency, causing the ENG to go into Wheelslip
(3) your FPS are very low and once "wheelslip" occurs there's only one solution as detailed below. This is causing the "back & forth" movement as the physics calculations are unstable at very low FPS.

To fix the issue, you should:
(1) apply the ENG brake until the Wheelslip % reaches "0". That will re-set the physics calculations.
(2) Do not throttle up until ALL brakes are in the "release" state.
(3) Go lightly on the ENG throttle, watch the wheelslip indicator. Apply sanding or throttle back if you see "Wheelslip Warning" in the HUD.

The latest development build has addressed some of the issues, and we're implementing a more comprehensive solution for the next release.

[MP36PH3S]

Thank you. Where is the wheelslip % idicated?

[longiron]

You can see the "Wheelslip Warning" in the current HUD you are using. If you would like to see more detailed information, press F5 again to view the highly detailed physics information including wheelslip data.

[MP36PH3S]

Thanks. I'll post again if it comes up. I guess OR and FRAPs don't mix.