[Csantucci]

darwins, on 21 January 2022 - 12:21 AM, said:

This is interesting. In UK we do not have "emergency braking" from EoT, but we do have some trains that have both service and emergency braking from both ends of the train. These include the HST sets (with a power car at both ends), Inter City 225 push pull sets and push pull trains with a Class 90 electric loco at one end and Mk III DVT at the other. These use the Davies & Metcalfe E70 or Westinghouse ‘Westcode’ DW1, DW2 or DW3 brake systems. Although the intermediate vehicles are not 'EP' braked, the EP signals from the drivers' brake valve at the front of the train are used to operate the drivers' brake valve at the rear of the train, thus initiating brake application from both ends of the train at the same time. Could this sort of model be used to simulate this kind of braking? (Or would that need to be done differently?)

There is the difference that now only the emergency braking is managed with the EOT, and not the service braking, so I think that using the EOT code would not be the best solution.
What you suggest is however a feature that I suppose is available not only in UK trains. It involves working on the braking code, and this is within the scope of another developer :). For the EOT I only limited myself to open the rear end cock valve when the EOT is asked to vent the brake pipe.

[Csantucci]

R H Steele, on 21 January 2022 - 08:55 AM, said:

Here's Tiger Trains EOT --- free to members. Red Light blinks, I think Ian has made some improvements, and has different models.

Thank you,
I have now found also the Dekosoft one (free download), but I didn't notice that there's one also in the Trainsimulations BNSF Scenic Subdivision free pack, and so I'll use the latter one.

[R H Steele]

Csantucci, on 21 January 2022 - 01:40 PM, said:

Thank you,
I have now found also the Dekosoft one (free download), but I didn't notice that there's one also in the Trainsimulations BNSF Scenic Subdivision free pack, and so I'll use the latter one.

Carlo, I have not kept up with this thread...will the code allow end users their choice of EOT or FRED devices?

[Csantucci]

Gerry,
I'll reply to your question through other questions:
- Should the player have the possibility to select the EOT/FRED from a list?
- Where should OR keep that list? Within an EOT folder in the TRAINS subfolder? Should the player generate the list file? Or should there be various subfolders, one for each EOT/FRED type, in that EOT folder?
- How should the EOT/FRED be selected for AI trains?

Any solution should be applicable for both activity and timetable modes.

[Csantucci]

The first phase of EOT management is available in ORNYMG 115, as described in the first post of this thread and also here http://www.elvastowe...post__p__281011 .
Note that at the moment the EOT does not visually appear and disappear at the end of the train. The EOT is "virtual" as of now.

Attached is a patch that enables to test what has been developed up to now. The demo is again based on Borislav's ES44 cabs, version 3.1, and his SVTX_ES44AC_1912.eng engine, included in Trainsim's svtxes44acset.zip .
Installation is the same as for the pack described here http://www.elvastowe...post__p__280173 .

The attached pack here runs under ORNYMG 115 and includes also the DP features. It can be installed over the DPdemo pack.

This is a rough demo. It does not want at all be a final version of the cab, which is something which pertains to Borislav, if he wants to.

 DP-EOTdemo_V31.zip (84.14K)
Number of downloads: 418

[ebnertra000]

Might I suggest a folder within TRAINSET with a specific name (common.EOT or something), with files for each type of end-of-train marker with information on what features they have (lights, one-way or two-way comms, rear e-brake, etc.). There could then be a menu that would check this folder and display those EOT devices as options for placement

[railguy]

^A great suggestion.

[lineman]

What Railguy said!!

[akioyamamura]

Csantucci, on 19 January 2022 - 10:00 AM, said:

I'm now sharing here the state-of-the-art. I have developed a first version of the EOT operation and of the in-cab interactions.
After this I'll try to find a solution on how to manage the visual presence (and absence) of the EOT at the end of the train.
I have again used the excellent Borislav's SVTX GE ES44AC cabs as starting point. I have added in a rough way what was needed to perform the tests, so the shown layout is not at all an officially publishable solution. I'm showing the operation with the help of a bunch of screenshots (click to enlarge).

Carlo, congratulations and thank you for this feature!
In older EOT systems like the image attached, we don't have many options as the modern locomotives. So, if I understood correctly, it's required only 2 buttons to arm the 2 way state. Is it correct?

Attached thumbnail(s)

• 

[Csantucci]

Thank you.
Actually there are three buttons needed: ORTS_EOT_COMM_TEST to perform the communication test; only after the test is OK, you can arm the EOT two-way with ORTS_EOT_ARM_TWO_WAY. To return to the state before communication test you have to press ORTS_EOT_DISARM.

[william madona]

Csantucci, on 22 January 2022 - 02:23 AM, said:

The first phase of EOT management is available in ORNYMG 115, as described in the first post of this thread and also here http://www.elvastowe...post__p__281011 .
Note that at the moment the EOT does not visually appear and disappear at the end of the train. The EOT is "virtual" as of now.

Attached is a patch that enables to test what has been developed up to now. The demo is again based on Borislav's ES44 cabs, version 3.1, and his SVTX_ES44AC_1912.eng engine, included in Trainsim's svtxes44acset.zip .
Installation is the same as for the pack described here http://www.elvastowe...post__p__280173 .

The attached pack here runs under ORNYMG 115 and includes also the DP features. It can be installed over the DPdemo pack.

This is a rough demo. It does not want at all be a final version of the cab, which is something which pertains to Borislav, if he wants to.

DP-EOTdemo_V31.zip

Good Morning. I downloaded this EOT test patch you posted, but the EOT settings as described don't show up for me, only DP. Did I do something wrong? I downloaded the loco and the cabs update on trainsim, after I installed your patch!

[ATW]

Did you download ORNYMG MG version 115.2 ?

[ATW]

This topic has motivated me indeed an looking forward to building a pack of variables.
Enjoyed starting this on my off day from working Gemco locals an a break from arming an pushing the EOT button I decided take pics an build.
https://scontent-lax3-1.xx.fbcdn.net/v/t39.30808-6/272735819_4703738249733762_6695330802826827740_n.jpg?_nc_cat=108&ccb=1-5&_nc_sid=8bfeb9&_nc_ohc=OCCec1QNgpkAX_7Juoi&_nc_ht=scontent-lax3-1.xx&oh=00_AT_HquBtwuXijNsrEtMGzuDBzZEEOcwlIqcxjhXC7AwcJw&oe=61F4DDC2
https://scontent-lax3-2.xx.fbcdn.net/v/t39.30808-6/272447335_4703738739733713_8651678103270057175_n.jpg?_nc_cat=111&ccb=1-5&_nc_sid=8bfeb9&_nc_ohc=dbS6RNcjcP0AX831RtI&_nc_ht=scontent-lax3-2.xx&oh=00_AT9ud2vji7Uqs4VpMnTmlEzw4vP9gA-rgG4-_lq9jSq7Vg&oe=61F40C4B

Yes its not finished but is progress needing variable of attach hoses to variable existing stocks as one thing that annoys me is stocks that have the air hoses detached like they in hump yards no air.

[LOP82]

This is very cool! Thank you. I will continue to watch this thread with particular interest.

[Csantucci]

I'm showing here the progress since http://www.elvastowe...post__p__281011 , again using some screenshots.

In the initial situation the player train has no EOT. In fact, no EOT info is shown in the F5 window, and the EOT ID is zero in the cab display. Of course the rear value of the brake pipe pressure is not shown in the cab display.


In fact, looking at the rear of the train with camera 3, no EOT is seen. Pressing Ctrl+F9, the EOT list is shown. For every EOT the filename and the folder name are shown. The Category (one way, two way, simple flag or light) is not yet managed. To avoid changing how EOTs are implemented now, EOTs are managed as .wag files, residing in directories that in turn reside in a ORTS_EOT directory within TRAINS.


By mouse clicking on the desired EOT in the EOT list, the clicked item gets coloured in red and the EOT is attached at the end of the train. In the F5 window a line about the EOT, in Disarmed state, appears.


The EOT (supposing it is a two-way EOT, like in this case) must be correctly connected to the train brake pipe, by connecting the pipe hose and by opening the rear angle cock of the preceding wagon. This must be done using the Car Operations Window. At the end, the EOT gets the train brake pipe pressure.


Entering the cab, the EOT ID appears, but the Rear brake pipe pressure is still not present.


Now, using the procedure described here http://www.elvastowe...post__p__281011 , the EOT can be armed two way and the Rear brake pipe pressure is shown on the cab display. Marker is shown in the ON state, and EM is enabled. The train can be started, if needed using the DPU feature.


After few time, all loco consists are moved to front while the train is accelerating


Later on the run, we must make a cut on the train. The train is stopped and the EOT is disarmed by soft key command. The rear brake pipe pressure indication disappears


With camera 3, the EOT is physically still there


Now we first close the rear angle cock of the preceding wagon, disconnect the EOT from the train brake hose (done with the Car Operations Window), and then we click on the red item in the EOT List window: the EOT is physically removed, The item in the list becomes white, and the EOT indication disappears from the F5 window.

Now we cut the train, not before having arranged brake hoses and angle cocks.


We can now attach an EOT at the new end of the train, using the same procedure.


Entering the cab, the new EOT ID is shown.


And so on...

I am also considering providing EOTs to AI trains, by adding an item with a specific syntax at the end of the .con file. It might e.g. have an ORTS_EOT identification, instead of the Wagon or Engine one.

What I have shown here is not ready for publication. There are remaining problems with brakes, that I must investigate.
Moreover the code architecture is very rough and must be substantially cleaned up.

Blueprint https://blueprints.l...et/or/+spec/eot .