[hroch]

Hi.
Please could be you added when is train brake controler in emergency position power going to idle too. Other variants work good.

[Coolhand101]

Testing with one of my diesel and electric engines, i can confirm that i can now get my extra parameters to work:-

ORTSEmergencyEngagesHorn(1) YES
ORTSEmergencyCausesPowerDown(1) NO*
ORTSWheelSlipCausesThrottleDown(1) YES
ORTSEmergencyCausesThrottleDown(1) YES


The player horn seems to be inactive when using the 'ORTSEmergencyEngagesHorn(1)' token. The horn will play automatically once this token is activated.

The ORTSWheelSlipCausesThrottleDown(1) token shuts the throttle and power to zero as soon as there is wheelslip. Once wheelslip stops, you have to re-apply power again manually.

*The ORTSEmergencyCausesPowerDown(1) does not work on a diesel engine, but is hard coded for an electric engine, so this token is not needed for electrics. I was hoping it would just cut the traction power on a diesel engine.

Tested on OR version 1.1.3487


Thanks

[copperpen]

for a diesel engine ORTSEmergencyCausesPowerDown(1) should be ORTSEmergencyCausesThrottleDown(1) and works as long as it is set up like

ORTS (
ORTSEmergencyCausesThrottleDown(1)
)

[Coolhand101]

copperpen, on 30 March 2016 - 01:33 AM, said:

for a diesel engine ORTSEmergencyCausesPowerDown(1) should be ORTSEmergencyCausesThrottleDown(1) and works as long as it is set up like

ORTS (
ORTSEmergencyCausesThrottleDown(1)
)

Yes i meant it works for both diesel and electric locos, however almost all UK diesels before privatisation had the power cut to the traction motors, when the brake pipe had fallen under a certain pressure ( 41 psi ?).

Sometimes, the sudden unloading of the main generator, cause the engine to exceed the maximum RPM, then the overspeed governor would activate and shut down the engine.

The 'ORTSEmergencyEngagesHorn(1)' stops the horn from working manually, i haven't as yet looked into this problem.

Thanks

[copperpen]

I see your drift now. probably easier to add now the diesel code has been reworked into distinct modules. If it is linked to BP how are vac equipped locos affected?.

[Coolhand101]

copperpen, on 30 March 2016 - 10:41 AM, said:

If it is linked to BP how are vac equipped locos affected?.

Good point. I assume that when the vacuum is destroyed to a certain pressure ( 10 Hg ? ) a similar governor cuts the power. Let me dig out a BR brake manual.

[Coolhand101]

Spot on for the class 33!

[Coonskin]

FWIW:

In North American diesel-electric locomotives, any deploying of the Emergency (desired or undesired) will result in the PCS (Power Control Switch) opening: The prime mover returns to idle, the amp load is dropped, and the sanders come on. You must recover your air before the PCS will reset.

The above is not dependent on an alerter system being in place on the locomotive.

[Hamza97]

Here on Indian Railways, as soon as emergency brakes are applied due to any reason, warning lamp or buzzer is sounded, in most locos the master controller undergoes auto-regression, with the notches falling to zero rapidly as the locomotive's motive power is switched off. The guard may also notice the loss of brake pressure (although he may not know it is due to the pulling of the alarm chain) and is expected to apply his brakes as well immediately. In addition to this emergency flasher lights gets activated outside of locomotive.

Here is a video of emergency flasher blinking on a WDP-4 passenger locomotive, near top center.
https://m.youtube.co...h?v=lzwJtRdiNbc

[copperpen]

Looking at the above information it is clear that in all cases the electrical power is cut first and then the throttle is returned to the closed position. There are quite a few variations on the theme to be considered as well.