[Andy]

Has anyone noticed that at the start of an act, the first instance of a given loco is powered off even if it is mu'd or DPU'd. The sound is on, however. I did notice that all locos started for V1.0.
Another thing I have noticed is that the compressors for DPU's do not operate. Only the locos in the lead pack. I don't know if they ever worked.

P.S. DPU = Distributed Power Unit.

[Csantucci]

I have just tested an activity with two diesel locos, one at the front and one at the rear of the train, and going to the Locomotive Info HUD the engines of both locos are running at activity start.

To correctly manage the diesel engine on/off sounds the .sms files must manage that. This has been covered somewhere here in the forum.

Also the fact that only the front pack locos have their compressor running has already been covered somewhere. It is a required feature, not a bug. :)

[Andy]

I have included a screenshot at the start of the act. The first 2 locos are the same . The second 2 locos are the same. I have to hit shift-Y to start the first. If I hit cntr-Y the mu'd locos toggle; one on, two off, so I have to use the loco properties to start the third. All locos have idle sound at start. I have a startup and shutdown sequence in the sms files. Once they are all running, it works correctly. The manual says that all locos are powered on and idling at start of act. The same problem exists with DPU locos.

Attached thumbnail(s)

• 

[Csantucci]

This is what I get at startup. Two couples of identical locos, all four have engine running. Mystery.

[ATW]

Question... are there any special parameters you added to the extended Open Rails eng file that could be starting this?

[Fablok]

I had same problem. Fix was repairing exhaust/smoke lines in eng. Check eng for all anomalies.

This are smoke lines for example :

DieselSmokeEffectInitialMagnitude( 0.7 )
DieselSmokeEffectMaxMagnitude( 2.0 )
DieselSmokeEffectInitialSmokeRate( 0.5 )
DieselSmokeEffectMaxSmokeRate( 4.0 )

[Andy]

I have confirmed that the issue is somewhere in here but cant find anything:

ORTSDieselEngines ( 1
Diesel (
IdleRPM ( 450 )
MaxRPM ( 1050 )
StartingRPM ( 302 )
StartingConfirmRPM ( 495 )
ChangeUpRPMpS ( 100 )
ChangeDownRPMpS ( 60 )
RateOfChangeUpRPMpSS ( 5 )
RateOfChangeDownRPMpSS ( 5 )
MaximalPower ( 3281kW )

IdleExhaust ( 1 )
MaxExhaust ( 2 )
ExhaustDynamics ( 2 )
ExhaustDynamicsDown ( 1 )
ExhaustColor ( ffffffff )
ExhaustTransientColor ( ffffffff )
DieselPowerTab (
450 10000
451 14900
525 373000
600 776000
675 1156000
825 1655000
900 2192000
975 2729000
1050 3281000
)
DieselConsumptionTab (
0 0
450 13.5
1050 797
)
ThrottleRPMTab (
0 450
12.5 525
25.0 600
37.5 675
50.0 750
62.5 825
75.0 900
87.5 975
100 1050
)
DieselTorqueTab (
0 0
450 10000
905 23739
)
MinOilPressure ( 40 )
MaxOilPressure ( 90 )
MaxTemperature ( 120 )
Cooling ( 3 )
TempTimeConstant ( 720 )
OptTemperature ( 90 )
IdleTemperature ( 70 )
)
)

[ATW]

Deleting IdleExhaust ( 1 ) will solve your problem.

I never include these lines as they puff up the smoke by doubles an instead use regular MSTS parameters for smoke rates an use the extended eng for color.

IdleExhaust ( 1 )
MaxExhaust ( 2 )
ExhaustDynamics ( 2 )
ExhaustDynamicsDown ( 1 )

[hroch]

Hi Andy
You using ORTSDieselEngines. If using ORTSDieselEngines player locomotive start on stoped. Helper locomotive start on
running.
Carlo no using ORTSDieselEngines. Therefore all locomotives start on running.
That compresor work as DPU you must use twin pipe brake. BrakeSystemType( "Air_twin_pipe" )
Sorry for my bad English.

[Andy]

 hroch, on 12 February 2016 - 02:17 AM, said:

Hi Andy
You using ORTSDieselEngines. If using ORTSDieselEngines player locomotive start on stoped. Helper locomotive start on
running.
Carlo no using ORTSDieselEngines. Therefore all locomotives start on running.

The manual says all locos should be running at the start.

Quote

That compresor work as DPU you must use twin pipe brake. BrakeSystemType( "Air_twin_pipe" )
Sorry for my bad English.

Twin pipe did not work for me either, thanks.