EMD F59PHI Coaster - Equalizing Pressure

[BNSFdude]

I think that would be correct.

[_o_OOOO_oo-Kanawha]

What is the minimum service pressure drop in passenger mode with 110 psi: still 6 psi?
What is the full service pressure drop in passenger mode with 110 psi: still 26 psi?

That means the active pressure reduction range is still 20 psi?

Then what is the emergency application pressure with 110 psi?

I have a hunch the engine simulation parameters aren't quite right or in proportion with 110 psi passenger setting.

Some WABCO docs suggest full service pressure drop is 32 psi, and brake pipe equalization pressure is 78 psi.

[FanRailer]

I have both the brake fix for the Coaster and Metrolink train sets sitting on my computer courtesy of JohnS. I guess I'll try to get them uploaded today.

[_o_OOOO_oo-Kanawha]

I have the version 3 of the F58PHI physics upgrade pack installed.
The author cheated a little by removing the EQReservoirPressurePSI control variable, replacing it with AirBrakePipePressurePSI.
This cheat at least provides us with a moving needle. The actual pressure difference and lag between EQ reservoir and brake pipe is neglible for our train simulation purposes, if properly implemented in the core engine at all.
Adding it back in showed the needle still gets stuck as soon as the cab car is attached to the rear of a loco hauled train.

I've found a small error in the upgrade, both the Regulator and DynamicBrake control values should have 17 notches I think, because of the combined power handle. 7 up, 1 neutral, 7 down.

What is the meaning of the enlarged symbol in the HUD, the locomotive stays small and red, but the cab car gets a larger yellow symbol?
It seems the cab car is actually "powering" the train, so its parameters are the dominant ones. Setting <ApplyToConsist> to False didn't make any difference to me. Neither did setting <GraduatedRelease> to True, but that is perhaps because the 26L <Notch> GraduatedSelfLapLimitedHolding negates it? I have the notches set up like: Release - GraduatedSelfLapLimitedHolding - FullService - Suppression - NeutralHandleOff - Emergency, just to mimic the prototype.

I suppose the engine and cab car controls and simulation script must be exactly the same when it comes to physics like power and braking?
Cab cars are much more common in UK and European DLC, must study some of their workings and bins to help with the Pacific Surfliner.

I haven't yet come across a Surfliner cab photo with the brake control valve. It if really has an independent brake lever, this should be linked to the pushing locomotive by an extra pneumatic control line. The Bombardier cars only have an automatic train brake handle.
Is there any other US DLC with cab cars?

[FanRailer]

I have the version 3 of the F58PHI physics upgrade pack installed.
The author cheated a little by removing the EQReservoirPressurePSI control variable, replacing it with AirBrakePipePressurePSI.
This cheat at least provides us with a moving needle. The actual pressure difference and lag between EQ reservoir and brake pipe is neglible for our train simulation purposes, if properly implemented in the core engine at all.
Adding it back in showed the needle still gets stuck as soon as the cab car is attached to the rear of a loco hauled train.

I've found a small error in the upgrade, both the Regulator and DynamicBrake control values should have 17 notches I think, because of the combined power handle. 7 up, 1 neutral, 7 down.

What is the meaning of the enlarged symbol in the HUD, the locomotive stays small and red, but the cab car gets a larger yellow symbol?
It seems the cab car is actually "powering" the train, so its parameters are the dominant ones. Setting <ApplyToConsist> to False didn't make any difference to me. Neither did setting <GraduatedRelease> to True, but that is perhaps because the 26L <Notch> GraduatedSelfLapLimitedHolding negates it? I have the notches set up like: Release - GraduatedSelfLapLimitedHolding - FullService - Suppression - NeutralHandleOff - Emergency, just to mimic the prototype.

I suppose the engine and cab car controls and simulation script must be exactly the same when it comes to physics like power and braking?
Cab cars are much more common in UK and European DLC, must study some of their workings and bins to help with the Pacific Surfliner.

I haven't yet come across a Surfliner cab photo with the brake control valve. It if really has an independent brake lever, this should be linked to the pushing locomotive by an extra pneumatic control line. The Bombardier cars only have an automatic train brake handle.
Is there any other US DLC with cab cars?

Some of the metro-north DLC has cab cars (shoreliners), but most of the code for those is recycled from the Surfliner cab cars.