Amtrak F40PH - Need Working Dynamic Brake Parameter

[FHRob]

I'm attempting to run the "CZ Truckee to Reno" scenario. As the briefing says, "it's all downhill."

However, using the dynamic brakes only seems to stop the train, not control the speed going downhill.

The default maximum current setting is 65. Usually, adjusting this setting up or down makes the dynamics work better. This time I've had no luck.

Any ideas/suggestions are appreciated and will be tried.

Thanks,

Rob

[artimrj]

Try using the LOCO brake instead. Worked nicely for me. It ain't proto but it works.

[FHRob]

Try using the LOCO brake instead. Worked nicely for me. It ain't proto but it works.

OK, I'll give the loco brake a try. And yes, "it ain't proto.."

Rob

[Ericmopar]

Try this one.
Make a backup of your existing Simulation Folder and install this.
Note: might cause you to have to hit "F2" and "Save" in the career scenarios after installing.

F40PH_Simulation.zip

It goes here for anyone interested.
Assets\RSC\F40PHPack01\RailVehicles\Diesel\F40PH\Simulation\F40PH-Simulation.bin

[FHRob]

Try this one.
Make a backup of your existing Simulation Folder and install this.
Note: might cause you to have to hit "F2" and "Save" in the career scenarios after installing.

F40PH_Simulation.zip

It goes here for anyone interested.
Assets\RSC\F40PHPack01\RailVehicles\Diesel\F40PH\Simulation\F40PH-Simulation.bin

Hey Eric:

I installed the new bin file, and it works much better than the original.

I tried free roam scenarios, using a 12 car train, on both Marias Pass & Cajon Pass.

Going down the Cajon Pass south track, I was able to keep the train at 29 mph on the 3.0% portion, using notch 8 on the dynamics, which generates 900 amps retarding force.

When I tried to apply a "minimum" 7 pound brake pipe reduction - it does show as 83 on the gauge - the train came to a stop, even if the dynamics were turned off.

This of course has to do with brake parameters on the cars - your engine bin is spot on.

Rob :)

[Chacal]

Ericmopar, what parameters did you change?
Because this mod conflicts with F40PH_Physics_and_HEP_Mod by Mike Kam (FanRailer).

[Ericmopar]

Ericmopar, what parameters did you change?
Because this mod conflicts with F40PH_Physics_and_HEP_Mod by Mike Kam (FanRailer).

It conflicts because some of those mods must be in the engine's simulation bin. Installing my brake mods fixed the brakes on the F40PH, but undid the HEP mods.
I've thought of this.
If someone is using some of the tractive effort mods, I would have to modify their modified bin, instead of the OEM simulation bin.
I forgot about the Amtrak cars. Sorry about that.
I should know by now, that the errors are in lots of places and a person has to go through all the rolling stock with a DLC.
My mods may not help, when a person uses one of the editors to make up a custom consist out of stock from different routes.
I don't have to many issues that way, because I've gone through most of my rolling stock at this time. Although I just went through the HSC stock and engines.
HSC wasn't too bad.

I've been thinking about checking some of the physics mod folders and asking their creators if I could modify the brakes too.

[Chacal]

Or more simply, just publish what changes you make to what parameters.
That way we can apply them manually without breaking other mods.

[Ericmopar]

Or more simply, just publish what changes you make to what parameters.
That way we can apply them manually without breaking other mods.

Unfortunately it's not that simple, because I'm finding typos as well as wrong specs, like air pressures.

Every DLC has it's own particular issues.

In this particular case, It would be easier for me to contact Mark and ask if he'd mind me modifying his mod pack.

[FHRob]

I noticed the following when running the 12 car train, which has 2 F40PH locomotives:

The equalizing reservoir is stuck on 160. If you uncouple the second engine, the equalizing reservoir drops to the proper amount.

What's up with this?

Rob :)

[Ericmopar]

I noticed the following when running the 12 car train, which has 2 F40PH locomotives:

The equalizing reservoir is stuck on 160. If you uncouple the second engine, the equalizing reservoir drops to the proper amount.

What's up with this?

Rob :)

Got me. I wonder if it's connected somehow with the indicator lights on the cars. Those red and green lights change with the last engine in the consist, not the lead engine, which is why they don't work to well. (The brake lever on the last engine)

Those gauge readings are not something I've tampered with.
I remember that one loco I was working on a few months ago, must have been picking up one of the air readings from the wrong place in the code. I knew that particular gauge had been stuck in the wrong position, and didn't change when applying or releasing the brakes. When I changed an incorrect spec from 100 and something, down to about 60, that gauge reading changed with it, but still didn't change with the pressure changes. It seems to me it was tied to Max Cylinder Pressure or maybe Max Pressure for Max Force, instead of slaving off the Air Pipe pressures, but I don't remember which engine after all this time.

[FHRob]

Got me. I wonder if it's connected somehow with the indicator lights on the cars. Those red and green lights change with the last engine in the consist, not the lead engine, which is why they don't work to well. (The brake lever on the last engine)

Eric:

What you said about the brake lever gave me an idea.

I switched to the second engine, and the gauge readings are correct, including the equalizing reservoir.

I then moved the reverser on the second engine into reverse to match it's direction in the consist. I ran the train from the second engine, and the gauges worked perfectly, except for air flow, which won't move to zero.

When I went back to the lead engine, the equalizing pressure had moved. However, it still doesn't change when applying or releasing the brakes.

We're definitely onto something with the second engine - although where to go with this, I'm not sure.

Rob

[Ericmopar]

Got me. I wonder if it's connected somehow with the indicator lights on the cars. Those red and green lights change with the last engine in the consist, not the lead engine, which is why they don't work to well. (The brake lever on the last engine)

Eric:

What you said about the brake lever gave me an idea.

I switched to the second engine, and the gauge readings are correct, including the equalizing reservoir.

I then moved the reverser on the second engine into reverse to match it's direction in the consist. I ran the train from the second engine, and the gauges worked perfectly, except for air flow, which won't move to zero.

When I went back to the lead engine, the equalizing pressure had moved. However, it still doesn't change when applying or releasing the brakes.

We're definitely onto something with the second engine - although where to go with this, I'm not sure.

Rob

I don't know either. I've wondered if it could be as simple as entering "eTrue" in the "Apply to consist" entry in the bins.