Engine sound won't stop

What do you mean by "it seems just to hold around 1600 rpm"?
Just the sound as suggested in the tittle, or the rpm gauche too? Can you rev up from there, or is the engine really off?

 

Ah, okay. It's a turbo engine, right?
btw; you realize there are different buttons for switching the car off and turning the engine off, right? Do they both act the same?

Can you show/send me the engine file?

I had the same problem once, but from memory, I can't help properly. (you know the joke they make sometimes; "I can hide my own easterneggs"? Well, I can )

 

I think your engine curves are stopping the engine from... er... stopping.

 

Sorry mate, in bed now, looking on my phone (small!).
There are some flaws in there as I see it. I will come back on this tomorrow, okay?

 

Just to be more specific... you have negative engine braking at low revs. The second value in the RPMBase lines is 'coast torque', which should always be negative. You have some positive values. So the engine will actually power itself (no fuel required!) at those RPM. I'd probably be reworking those engine curves, because there's also an absolutely massive amount of torque at very low revs for an engine that is still producing a LOT of power at 12000 RPM.

 

Ehm.....what did you tried to achieve with this engine? What kind of power did you want?

It seems to me, the torque is insanely high at low revs because.......the engine didn't run idle? Is that right?
Or did you want high torque at such low revs?

Here's an example (very rough numbers though, may be totally inaccurate, needs testing) how it "should" look like. (The engine may well be acting normal with this)

ReferenceConditions=(101325.0,1.225,0.068)
RPMBase=(0.0, -25.0, -25.0, 0.1, 1.2000)
VolumeFract=(0.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000)
MixtureFract=(1)
RPMBase=(250, -5.0, 75.0, 0.1, 1.200)
VolumeFract=(0.000,0.458,0.652,0.798,0.910,0.965,0.978,0.982,0.989,0.995,0.998,0.998,0.999,0.999,1.000,1.000)
MixtureFract=(1)
RPMBase=(500, -22.0, 145.6, 0.1, 1.200)
VolumeFract=(0.000,0.276,0.478,0.657,0.808,0.902,0.949,0.972,0.984,0.990,0.994,0.997,0.998,0.999,1.000,1.000)
MixtureFract=(1)
RPMBase=(750, -33.9, 191.1, 0.01, 1.224)
VolumeFract=(0.000,0.684,0.772,0.832,0.874,0.903,0.927,0.943,0.956,0.968,0.979,0.985,0.991,0.994,0.997,1.000)
MixtureFract=(1)
RPMBase=(1000, -35.3, 225.9, 0.01, 1.195)
VolumeFract=(0.000,0.223,0.395,0.519,0.637,0.753,0.854,0.924,0.963,0.981,0.991,0.995,0.998,0.999,1.000,1.000)
MixtureFract=(1)
RPMBase=(1250, -37.2, 258.1, 0.01, 1.100)
VolumeFract=(0.000,0.208,0.376,0.488,0.588,0.690,0.791,0.877,0.938,0.974,0.991,0.996,0.999,0.999,1.000,1.000)
MixtureFract=(1)
RPMBase=(1500, -39.1, 270.3, 0.02, 1.015)
VolumeFract=(0.000,0.189,0.355,0.470,0.559,0.647,0.741,0.831,0.908,0.960,0.987,0.994,0.997,0.997,0.999,1.000)
MixtureFract=(1)
RPMBase=(1750, -42.6, 317.3, 0.05, 1.007)
VolumeFract=(0.000,0.169,0.334,0.458,0.545,0.623,0.708,0.795,0.876,0.938,0.976,0.989,0.993,0.995,0.998,1.000)
MixtureFract=(1)
RPMBase=(2000, -44.3, 354.2, 0.05, 1.002)
VolumeFract=(0.000,0.150,0.311,0.442,0.529,0.601,0.677,0.759,0.840,0.909,0.957,0.982,0.991,0.994,0.997,1.000)
MixtureFract=(1)
RPMBase=(2250, -47.2, 392.1, 0.02, 1.000)
VolumeFract=(0.000,0.133,0.285,0.416,0.506,0.573,0.643,0.719,0.801,0.873,0.934,0.974,0.990,0.994,0.996,1.000)
MixtureFract=(1)
RPMBase=(2500, -51.2, 446.6, 0.02, 1.000)
VolumeFract=(0.000,0.119,0.261,0.392,0.486,0.552,0.615,0.687,0.768,0.841,0.911,0.964,0.989,0.995,0.996,1.000)
MixtureFract=(1)

Keep in mind that the numbers I used, are very wild gambles; no calculating, no visuals used and not even compared to the line before really.
I only changed the rpm base lines, but the volume fraction is pretty weird too; needs addressing also (a lot).
But I hope it gives you a rough idea of how it is "normally" done in such a file.
I might be (very) off with this, but it needs to be seen as a whole and I just winged it a bit. However; you should notice the problem is different or gone when you copy/paste this in there.

You see, you can still cranck the torque up pretty quick, that is no problem, but this was a bit extreme
Also; the last value in those lines; try to keep them (at first) at 1.000 when above -lets say- idle rpm.

I will get back to it tomorrow, lets see what you think and how it turned out if you have the change to try it.

 

So.....that's it? All done?
Okay.

 

> Insanely high torque

Maybe it's an electric motor?

 

Ehm, I don't understand; you do have the engine, right?
Anyway; just say the word and I'll take a look.


@ Emery, that can very well be yes. However; that doesn't work like that with these files in this game.
Also; he was talking about "running iddle".

 

Coutie and I are not sure about source of the original motor, so no idea what engine it was modeled after. The torque curve has the shape of a diesel, but i don't know of any diesels that rev so high. We were using it as LMP1 engine...but not happy with overall power (650hp) and the low end torque was too extreme and causing problems with rear tyres... we were planning new engine at end of our season. Neither of us realized the 'perpetual motion' feature between 500 and 1250 rpm range... THANKS for pinpointing it as the source of our noise problem.

Here's the new one that we are working on.
Its an imaginary 700HP V8 (4.4L)
Appreciate any feedback...
View attachment 16308

Code:

// LMP1 . . . 4.4L V-8
// 605 Nm @ 6,250RPM
// 522 kW (700 HP) @ 9,750RPM
ReferenceConditions=(101325.0,1.225,0.068)
RPMBase=( 0, -18.0, -18.0, 0, 1)
VolumeFract=(0.000,0.977,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000,1.000)
MixtureFract=(1)
RPMBase=( 250, -21.6, 24.2, 0.14, 1)
VolumeFract=(0.000,0.458,0.652,0.798,0.910,0.965,0.978,0.982,0.989,0.995,0.998,0.998,0.999,0.999,1.000,1.000)
MixtureFract=(1)
RPMBase=( 500, -25.3, 55.1, 0.14, 1)
VolumeFract=(0.000,0.276,0.478,0.657,0.808,0.902,0.949,0.972,0.984,0.990,0.994,0.997,0.998,0.999,1.000,1.000)
MixtureFract=(1)
RPMBase=( 750, -28.9, 85.0, 0.14, 1)
VolumeFract=(0.000,0.684,0.772,0.832,0.874,0.903,0.927,0.943,0.956,0.968,0.979,0.985,0.991,0.994,0.997,1.000)
MixtureFract=(1)
RPMBase=( 1000, -32.5, 115.6, 0.11, 1)
VolumeFract=(0.000,0.223,0.395,0.519,0.637,0.753,0.854,0.924,0.963,0.981,0.991,0.995,0.998,0.999,1.000,1.000)
MixtureFract=(1)
RPMBase=( 1250, -36.1, 145.3, 0.08, 1)
VolumeFract=(0.000,0.208,0.376,0.488,0.588,0.690,0.791,0.877,0.938,0.974,0.991,0.996,0.999,0.999,1.000,1.000)
MixtureFract=(1)
RPMBase=( 1500, -39.8, 170.6, 0.05, 1)
VolumeFract=(0.000,0.189,0.355,0.470,0.559,0.647,0.741,0.831,0.908,0.960,0.987,0.994,0.997,0.997,0.999,1.000)
MixtureFract=(1)
RPMBase=( 1750, -43.4, 195.1, 0, 1)
VolumeFract=(0.000,0.169,0.334,0.458,0.545,0.623,0.708,0.795,0.876,0.938,0.976,0.989,0.993,0.995,0.998,1.000)
MixtureFract=(1)
RPMBase=( 2000, -47.0, 220.2, 0, 1)
VolumeFract=(0.000,0.150,0.311,0.442,0.529,0.601,0.677,0.759,0.840,0.909,0.957,0.982,0.991,0.994,0.997,1.000)
MixtureFract=(1)
RPMBase=( 2250, -50.6, 245.9, 0, 1)
VolumeFract=(0.000,0.133,0.285,0.416,0.506,0.573,0.643,0.719,0.801,0.873,0.934,0.974,0.990,0.994,0.996,1.000)
MixtureFract=(1)
RPMBase=( 2500, -54.3, 272.2, 0, 1)
VolumeFract=(0.000,0.119,0.261,0.392,0.486,0.552,0.615,0.687,0.768,0.841,0.911,0.964,0.989,0.995,0.996,1.000)
MixtureFract=(1)
RPMBase=( 2750, -57.9, 298.0, 0, 1)
VolumeFract=(0.000,0.109,0.242,0.373,0.473,0.540,0.600,0.667,0.743,0.816,0.889,0.952,0.985,0.996,0.998,1.000)
MixtureFract=(1)
RPMBase=( 3000, -61.5, 326.4, 0, 1)
VolumeFract=(0.000,0.101,0.226,0.356,0.462,0.533,0.590,0.653,0.723,0.794,0.867,0.935,0.978,0.995,0.999,1.000)
MixtureFract=(1)
RPMBase=( 3250, -65.1, 354.3, 0, 1)
VolumeFract=(0.000,0.094,0.211,0.340,0.450,0.525,0.581,0.638,0.703,0.771,0.843,0.914,0.967,0.992,0.998,1.000)
MixtureFract=(1)
RPMBase=( 3500, -68.8, 382.9, 0, 1)
VolumeFract=(0.000,0.086,0.198,0.325,0.438,0.516,0.570,0.624,0.684,0.749,0.819,0.890,0.951,0.986,0.997,1.000)
MixtureFract=(1)
RPMBase=( 3750, -72.4, 412.0, 0, 1)
VolumeFract=(0.000,0.078,0.184,0.309,0.424,0.505,0.559,0.609,0.665,0.726,0.793,0.864,0.930,0.976,0.995,1.000)
MixtureFract=(1)
RPMBase=( 4000, -76.0, 439.9, 0, 1)
VolumeFract=(0.000,0.072,0.172,0.294,0.410,0.494,0.549,0.596,0.647,0.705,0.768,0.838,0.907,0.962,0.992,1.000)
MixtureFract=(1)
RPMBase=( 4250, -79.6, 464.1, 0, 1)
VolumeFract=(0.000,0.068,0.161,0.279,0.395,0.483,0.540,0.584,0.631,0.684,0.744,0.812,0.883,0.946,0.987,1.000)
MixtureFract=(1)
RPMBase=( 4500, -83.3, 486.4, 0, 1)
VolumeFract=(0.000,0.062,0.150,0.262,0.378,0.469,0.527,0.570,0.613,0.662,0.719,0.785,0.857,0.927,0.978,1.000)
MixtureFract=(1)
RPMBase=( 4750, -86.9, 506.5, 0, 1)
VolumeFract=(0.000,0.055,0.136,0.245,0.358,0.450,0.510,0.551,0.591,0.638,0.692,0.757,0.830,0.904,0.964,1.000)
MixtureFract=(1)
RPMBase=( 5000, -90.5, 526.5, 0, 1)
VolumeFract=(0.000,0.048,0.123,0.226,0.336,0.429,0.489,0.529,0.567,0.612,0.665,0.728,0.800,0.877,0.946,1.000)
MixtureFract=(1)
RPMBase=( 5250, -94.1, 547.1, 0, 1)
VolumeFract=(0.000,0.044,0.112,0.207,0.314,0.406,0.466,0.507,0.544,0.587,0.638,0.699,0.770,0.848,0.926,1.000)
MixtureFract=(1)
RPMBase=( 5500, -97.8, 567.3, 0, 1)
VolumeFract=(0.000,0.041,0.103,0.191,0.295,0.386,0.449,0.491,0.528,0.570,0.618,0.677,0.747,0.826,0.911,1.000)
MixtureFract=(1)
RPMBase=( 5750, -101.4, 587.1, 0, 1)
VolumeFract=(0.000,0.040,0.097,0.179,0.280,0.372,0.439,0.483,0.520,0.560,0.608,0.666,0.734,0.813,0.903,1.000)
MixtureFract=(1)
RPMBase=( 6000, -105.0, 603.2, 0, 1)
VolumeFract=(0.000,0.038,0.093,0.171,0.267,0.361,0.432,0.478,0.515,0.554,0.600,0.657,0.724,0.803,0.895,1.000)
MixtureFract=(1)
RPMBase=( 6250, -108.6, 605.3, 0, 1)
VolumeFract=(0.000,0.036,0.089,0.163,0.256,0.350,0.424,0.473,0.510,0.548,0.593,0.647,0.713,0.790,0.884,1.000)
MixtureFract=(1)
RPMBase=( 6500, -112.3, 603.4, 0, 1)
VolumeFract=(0.000,0.034,0.085,0.157,0.247,0.340,0.416,0.468,0.504,0.542,0.584,0.637,0.701,0.777,0.874,1.000)
MixtureFract=(1)
RPMBase=( 6750, -115.9, 599.1, 0, 1)
VolumeFract=(0.000,0.033,0.082,0.152,0.240,0.332,0.409,0.462,0.499,0.536,0.577,0.627,0.690,0.767,0.866,1.000)
MixtureFract=(1)
RPMBase=( 7000, -119.5, 593.1, 0, 1)
VolumeFract=(0.000,0.031,0.078,0.147,0.234,0.326,0.405,0.460,0.497,0.533,0.573,0.623,0.683,0.760,0.860,1.000)
MixtureFract=(1)
RPMBase=( 7250, -123.1, 586.8, 0, 1)
VolumeFract=(0.000,0.028,0.073,0.141,0.228,0.321,0.403,0.461,0.499,0.534,0.574,0.623,0.681,0.756,0.856,1.000)
MixtureFract=(1)
RPMBase=( 7500, -126.8, 580.6, 0, 1)
VolumeFract=(0.000,0.026,0.069,0.135,0.221,0.317,0.401,0.462,0.501,0.537,0.576,0.623,0.679,0.753,0.851,1.000)
MixtureFract=(1)
RPMBase=( 7750, -130.4, 574.3, 0, 1)
VolumeFract=(0.000,0.024,0.064,0.128,0.214,0.311,0.398,0.462,0.504,0.538,0.575,0.622,0.677,0.748,0.847,1.000)
MixtureFract=(1)
RPMBase=( 8000, -134.0, 568.1, 0, 1)
VolumeFract=(0.000,0.023,0.061,0.122,0.207,0.305,0.394,0.461,0.504,0.538,0.575,0.620,0.675,0.745,0.844,1.000)
MixtureFract=(1)
RPMBase=( 8250, -137.6, 561.9, 0, 1)
VolumeFract=(0.000,0.023,0.059,0.118,0.201,0.298,0.389,0.459,0.504,0.538,0.574,0.619,0.674,0.743,0.843,1.000)
MixtureFract=(1)
RPMBase=( 8500, -141.3, 555.7, 0, 1)
VolumeFract=(0.000,0.023,0.059,0.115,0.195,0.291,0.384,0.457,0.505,0.539,0.574,0.618,0.672,0.741,0.841,1.000)
MixtureFract=(1)
RPMBase=( 8750, -144.9, 549.4, 0, 1)
VolumeFract=(0.000,0.024,0.059,0.113,0.191,0.286,0.379,0.455,0.506,0.540,0.575,0.618,0.670,0.739,0.839,1.000)
MixtureFract=(1)
RPMBase=( 9000, -148.5, 543.2, 0, 1)
VolumeFract=(0.000,0.024,0.059,0.112,0.188,0.282,0.377,0.456,0.509,0.544,0.579,0.620,0.671,0.738,0.838,1.000)
MixtureFract=(1)
RPMBase=( 9250, -152.1, 531.6, 0, 1)
VolumeFract=(0.000,0.025,0.060,0.112,0.186,0.279,0.376,0.459,0.515,0.551,0.585,0.626,0.675,0.740,0.839,1.000)
MixtureFract=(1)
RPMBase=( 9500, -155.8, 520.0, 0, 1)
VolumeFract=(0.000,0.026,0.061,0.113,0.186,0.278,0.378,0.463,0.523,0.560,0.595,0.634,0.683,0.746,0.841,1.000)
MixtureFract=(1)
RPMBase=( 9750, -159.4, 511.0, 0, 1)
VolumeFract=(0.000,0.026,0.062,0.114,0.186,0.279,0.381,0.470,0.534,0.573,0.607,0.645,0.694,0.755,0.845,1.000)
MixtureFract=(1)
RPMBase=( 10000, -163.0, 497.0, 0, 1)
VolumeFract=(0.000,0.024,0.059,0.110,0.181,0.276,0.388,0.486,0.555,0.589,0.619,0.655,0.703,0.760,0.834,1.000)
MixtureFract=(1)
RPMBase=( 10250, -166.6, 484.0, 0, 1)
VolumeFract=(0.000,0.035,0.087,0.164,0.266,0.376,0.471,0.535,0.574,0.608,0.646,0.689,0.741,0.803,0.881,1.000)
MixtureFract=(1)
RPMBase=( 10500, -170.3, 460.0, 0, 1)
VolumeFract=(0.000,0.036,0.087,0.163,0.265,0.377,0.475,0.542,0.582,0.617,0.654,0.698,0.749,0.809,0.885,1.000)
MixtureFract=(1)
RPMBase=( 10750, -173.9, 435.0, 0, 1)
VolumeFract=(0.000,0.036,0.088,0.163,0.265,0.380,0.481,0.551,0.593,0.628,0.664,0.708,0.760,0.818,0.891,1.000)
MixtureFract=(1)
RPMBase=( 11000, -177.5, 399.0, 0, 1)
VolumeFract=(0.000,0.037,0.089,0.164,0.266,0.382,0.487,0.561,0.605,0.639,0.675,0.719,0.770,0.828,0.898,1.000)
MixtureFract=(1)
RPMBase=( 11250, -181.1, 352.0, 0, 1)
VolumeFract=(0.000,0.038,0.091,0.166,0.267,0.385,0.492,0.570,0.616,0.650,0.686,0.729,0.780,0.837,0.904,1.000)
MixtureFract=(1)
RPMBase=( 11500, -184.8, 287.0, 0, 1)
VolumeFract=(0.000,0.040,0.092,0.167,0.267,0.386,0.496,0.578,0.627,0.661,0.697,0.737,0.787,0.844,0.909,1.000)
MixtureFract=(1)
RPMBase=( 11750, -188.4, 213.0, 0, 1)
VolumeFract=(0.000,0.041,0.093,0.167,0.267,0.386,0.501,0.587,0.638,0.672,0.707,0.746,0.794,0.850,0.914,1.000)
MixtureFract=(1)
RPMBase=( 12000, -192.0, 115.0, 0, 1)
VolumeFract=(0.000,0.038,0.089,0.160,0.260,0.385,0.515,0.606,0.656,0.681,0.715,0.752,0.799,0.854,0.918,1.000)
MixtureFract=(1)
FuelDensity=0.75
FuelAirMixtureTable=(0.00 , 0.10)
FuelAirMixtureEffects=(0.00 , 0.00)
FuelAirMixtureEffects=(0.10 , 0.11)
FuelAirMixtureEffects=(0.20 , 0.22)
FuelAirMixtureEffects=(0.30 , 0.33)
FuelAirMixtureEffects=(0.40 , 0.44)
FuelAirMixtureEffects=(0.50 , 0.55)
FuelAirMixtureEffects=(0.60 , 0.66)
FuelAirMixtureEffects=(0.70 , 0.77)
FuelAirMixtureEffects=(0.80 , 0.88)
FuelAirMixtureEffects=(0.89 , 0.99)
FuelAirMixtureEffects=(0.98 , 1.00)
FuelAirMixtureEffects=(1.00 , 0.97)
FuelAirMixtureEffects=(0.97 , 0.90)
FuelAirMixtureEffects=(0.85 , 0.80)
FuelAirMixtureEffects=(0.65 , 0.60)
FuelAirMixtureEffects=(0.40 , 0.40)
FuelAirMixtureEffects=(0.10 , 0.10)
FuelAirMixtureEffects=(0.00 , 0.00)
FuelConsumption= 5.22E-05   	                    // affected by throttle position and engine speed
FuelEstimate=0.99   	                            // fudge factor for differences between vehicle types (used for lap estimates and AI pit scheduling)
EngineInertia=0.12500                       // rotational inertia of engine components
//IdleThrottle=0.50000                      // throttle multiplier to help maintain idle speed
IdleRPMLogic=(1350, 1550)                   // attempt to maintain idle speed between these RPMs
LaunchEfficiency=0                          // efficiency (0.0-1.0) of launch control, or 0.0 if N/A
LaunchRPMLogic=(3000, 5000)                 // holds RPM in this range before launch (used for AI even if launch control is N/A!)
RevLimitRange=(9200, 300, 3)   
RevLimitSetting=0   
RevLimitAvailable=1                         // whether to use a rev limit (if 0, you still must have a "rev limit", just make it 40000 or so, and make sure to change [CONTROLS]->UpshiftAlgorithm to fix shifting points)
RevLimitLogic=0                             // RPM range around current setting where rev limiter operates
RevLimitHardTime=0.002                           
EngineMapRange=(0, 1, 1)                    // 0 = most driveable, max = most power (low gears only) (unimplemented)
EngineMapSetting=0
EngineBrakingParams=(0,900)                 // 0=old-style RPM based throttle increase, 1=throttle-based, 2=torque-based; then RPM step size for "Limit" tables below
EngineBrakingMapRange=(0, 0.00015, 11)      // (min setting, multiplier, max setting) input throttle% = setting * step * RPM. i.e. 10 * .00015 * 10000 rpm = 15%
EngineBrakingMapSetting=5                   // (default garage setting)  
EngineBoostRange=(0, 0, 1)                  // Number of possible boost settings, this can be used in conjunction with BoostTurboPressure to alter turbo boost pressures
EngineBoostSetting=0
BoostEffects=(0.0, 0.01, 0.02)              // RPM increase per setting, fuel increase (1%) per setting, engine wear rate (2%) per setting
BoostTorque=0.10                            // 10% more torque per setting (applies to all RPMs)
BoostPower=-0.0003                          // 0.3% less horsepower per setting
OptimumOilTemp=105                          // degrees Celsius at which engine operates optimally
CombustionHeat=42.50                        // degrees Celsius added per liter of fuel burned
EngineSpeedHeat=0.00242                     // heat added linearly with engine speed
OilMinimumCooling=0.00350                   // heat dissipated without oil/water transfer
OilWaterHeatTransfer=(0.28300, 4.200e-05)   // heat transfer from oil to water (base, w/ engine speed)
WaterMinimumCooling=0.00420                 // base heat dissipated without velocity
RadiatorCooling=(7.500e-04, 6.000e-05)      // cooling rate with velocity (base, per setting)
LifetimeEngineRPM=(9200, 300)               // (base engine speed for lifetime, range where lifetime is halved)
LifetimeOilTemp=(111, 2.0000)                       // (base oil temp for lifetime, range where lifetime is halved)
LifetimeAvg=54000                                   // 15hr - average lifetime in seconds
LifetimeVar=3600                                    // 1hr - lifetime random variance
EngineEmission=(0.0, 0.4,-0.2)                  // where flames and smoke are emitted (relative to ref frame at rear axle)
EngineSound=(0.0, 0.4,-0.2)                     // where engine sound is emitted (relative to ref frame at rear axle)
SpeedLimiter=1                                      // whether there is a pitlane speed limiter
OnboardStarter=1                                    // whether vehicle restarts when stalled
StarterTiming=(2.20, 0.0, 0.0)                      // average and variable cranking time, then blend with starting sound
RamCenter=(-0.17, 0.80,-0.10)	
RamDraftMult=5.0	
RamPressure=(0.0,5.800e-6)	

 

Again; in bed now
But for what I see; this looks much better.

I will take a better look tomorrow, but see no flaws right now. Well done.

 

Ignore the VolumeFract= entries, as those are from the original, and are also doing weird things. Those will be replaced.

 

Well, keeping those lines out; I don't see strange things.

However; it should be a diesel? 700 hp with no turbo? Is that realistic?