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Thermal Simulation Feedback

Discussion in 'General Discussion' started by Diamondback, Mar 16, 2016.

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  1. B727ClassicFlyer

    B727ClassicFlyer
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    I watched YBR's video on @Nadeox1's SSRB map, and the Civetta Bolide GTR Group 4 engine block temperature reached 1400 degrees Celsius, despite the piston rings and head gaskets being gone. Tuning maybe?
    Watch the video and pay attention to the block temperature and cylinder wall temperature after the head gaskets and piston rings fail. The oil cooler did a good job of keeping oil temperature from rising above 110 degrees Celsius.
     
  2. vicvega

    vicvega
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    Would be great to have oil leak simulation as well, by damaging oil pan.
     
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  3. B727ClassicFlyer

    B727ClassicFlyer
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    I swear a vehicle with damaged piston rings and head gaskets smoke the same color as when a vehicle is getting SeaFoam into the throttle body.

    Skip to 3:01 of the video and you'll see what I mean.
     
  4. Eastham

    Eastham
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    Head gasket? Yeah plumes of white smoke, Piston rings? Nah when oil burns the smoke is blue.

    Oh and on topic, engines don't seem to cool down when you drive them into water, this should be a thing.
     
    #24 Eastham, Mar 18, 2016
    Last edited: Mar 18, 2016
  5. ast5515

    ast5515
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    No smoke on engine braking please. I think it should only smoke when you are giving it gas.
     
  6. RoyalAce2000

    RoyalAce2000
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    the thermals aren't showing up for me I DON'T KNOW WHY!!!!! It only shows up if I crash the car into an unrecognizable shape and even then it only shows up 60% of the time, Can someone please help me I don't know if it's a graphic's card issue or what?

    PLEASE HELP ME!!!
     
  7. Dudeman

    Dudeman
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    Any mods installed?
     
  8. TomiL88

    TomiL88
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    In my opinion some cars overheat too easily. revving engine causes coolant to leak resulting engine failure.
    EDIT: Hold on. Did not try the new update.
     
  9. Diamondback

    Diamondback
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    Sure :)


    Well we don't simulate oil leaks yet and it would take a long time (in game terms) before you lost enough oil by burning it to actually damage your engine.


    Not really sure what you mean, can you do a video?


    I've included some "melting points" as a last resort in the latest rev, so in the future the engine will eventually die from mechanical deformation at least. We are also looking into adding a few more damage types for the more extreme temperatures.
    Also keep in mind that this is still supposed to be a game, so need to balance all the damages so it's still fun.


    See above :)


    Implementing something like a real airflow would be incredibly hard or super hacky, none of those options are particularly nice... So I don't think this is going to happen soon.


    Can you please elaborate some more what you mean with that second video?


    Yea, might look into this at some point :)
     
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  10. LostPup

    LostPup
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    one suggestion, give us an easy way to turn this off until it actually works realistically (and i know devs want realism, still pissed there is no standard in game manual transmission for the Garvil H-series because "the one it's based off in real life doesn't come with one")

    example: 200BX Race, less then 60 seconds of doing a stand still burnout and it over heated and blew the head gasket, i drive around in an oval in 1st or 2nd gear for 15-20min, holding it flat against the rev limiter and just sit there bashing it as i drive around in first or second and the temps stay normal, coolant 90 degrees, oil 110 and wont move but the second the wheels loose traction the temps go though the roof, this is stupid, what's even worse is when i'm driving around in circles reving its guts out and i turn the wheel untill the front wheels start to loose traction and understeer the temp goes up but i straighten the wheels and still holding it on redline the temps go back down . YES i am aware that while the car is moving it will have a cooling affect while i rev its guts out however the temps will not be what they are at idle, i'm reving the tits off the things FFS.

    i did a little test to see if it was because of airflow, i backed up against a wall and used the wind app to put 205m/s wind coming from the front of the car then started doing a burnout, obiously the car wouldn't move forward and sure enough few seconds then temps went though the roof and i blew the head gasket.

    why is this system based around if the tires are loosing traction or not?, that's what it seems like. i can rev it drive it do what ever and the temps barely move but the second a tire loose traction the car has a literal melt down. hell i can just sit there and hold it against redline in neutral and it does nothing, second the wheels are spinning, look out engine.

    this system in its current form is broken, i can't even do 1 lap with the stock configuration of the Race 200BX without blowing the engine and that's no mods to the vehicle or touching the tune, why add a system that breaks the content that's in the game its self. how can i turn this system off or delete it from the game files without breaking the game so i can enjoy driving around without having to reset my car every few minutes because of this system or having massive plumes of smoke in my face as i drive around.

    Please, Thank you and Thanks but no thanks on this system. i want to be able to disable it in my game untill it works properly.
     
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  11. Diamondback

    Diamondback
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    While doing a burnout you don't have any airflow going through the rad, rendering it effectively useless. (and no, wind doesn't effect the airflow yet at atll)
    Just revving an engine without any significant load won't produces any high coolant temperatures, oil is much more of a concern at that point. As soon as you add a load though, your engine will burn more fuel and produce much higher temperatures leading to a much higher requirement on the cooling system. If you are at that point standing still... Not much the cooling can do.
     
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  12. LostPup

    LostPup
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    --- Post updated ---
    Driving around in circles at redline with the wheels understeering it took 2min and 53 seconds for the piston rings and headgasket to fail. i did the same thing but drove around without the wheels understeering/skidding and the coolant stayed at 91c, the engine oil stayed at 110 through both and the block and cylnder wall temps never went over 95c while reving it to the mad. the second i turn the wheel till it understeers the coolant temp starts climbing as to the block and cylnder wall temps. i don't understand how the engine doesn't fail when driving around on redline without the wheels skidding. as you said oil becomes much more of a concern but though both tests the oil temp went to 110c and didn't move no matter what even if i stop and do a burnout the oil doesn't go over 110c.

    either all it still doesn't answer my question of how do i turn this system off, with it in place i can't drift for any more then 60 seconds at a time

    Also i'm not hating on the game or the Devs, this game has had some amazing changes and improvements and i love playing it, the handling alone has become so much better then when i bought into it. but this system in its current form i don't want anything to do with, it's taking the enjoyment out of the game having to reset my car every couple of minutes.
     
  13. amarks240

    amarks240
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    @Diamondback
    Thanks for at least hearing me out. I think just having a 1.07 multiplier to cooling efficiency when the bumper and or hood is off would be plenty and don't really want to see you spend the time to do it the "real beamng" way. And yes beamng is synonymous with full assed work not half assed. Just figured it would be cool to milk the stock radiator like I've known people to do before with their backyard turbo builds.
     
  14. Diamondback

    Diamondback
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    I don't see why this would happen from doing what you report. I'll take a look at the airflow calculations for the radiator (because it does take the vehicle orientation vs. the direction of traveling into account, that's also why drifting is much more taxing), maybe there's a bug there. It certainly does not care about understeering front wheels ;)

    As for turning it off, there is currently no way to do that from within the game. You can edit the jbeam files to deactivate it there ("thermalsEnabled" flag).

    The issue is that the car doesn't know about things like "the hood is gone". We could make that work in a static (and suuuper hacky way) but that wouldn't work when you dynamically rip off the hood. :(
     
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  15. LostPup

    LostPup
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    it's not just understeer, it's anything from accelerating and getting wheel slip to cornering under throttle and getting understeer, without throttle there's no temp increase only while under throttle. i can go as hard as i want under acceleration but as soon as wheel slip is involved the temps seem to rise from my observation. i raced the 200BX a few laps around the raceway and i could hammer it down straights and out of corners on the edge of oversteer/understeer but as soon as i started to give it throttle while the car slids out a little i can see the temps rise slowly and each time it degrades until the car just overheats, radiator starts leaking and the car goes into melt down from there.

    Also, the coolant temp only goes to 130c and never goes over that in the Debug app, that supposed to happen?.
     
    #34 LostPup, Mar 19, 2016
    Last edited: Mar 19, 2016
  16. Diamondback

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    Just tried to replicate your issues, can't really see them. Can you create a video showing your issues?

    As for the water temp: water in liquid form cannot possibly have a higher temperature than its boiling point. 130C means about 1.6 bar overpressure which is around what common cooling systems can sustain.
     
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  17. LostPup

    LostPup
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    the 130c temp boiling point makes sense.

    if i could make a video showing the issues i've described, it'd take a few days between rendering and my almost non existent upload speed. Aussie ADSL1 </3 ontop of that my there's something on my computer failing and i don't even know if it'll be able to render a video. times where i can barely play BeamNG or other games for that fact. it's been okay the last couple of days, can get my usual 40-60fps instead of 15-20fps
     
  18. B727ClassicFlyer

    B727ClassicFlyer
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    Hey, @Diamondback, if you're thinking about adding something to the beater Covet with the blown 1.5L I4, try making the engine so that it's seems to be at the end of its life* (i.e. won't stay running, idling erratically, revs all over the place, etc.)
    (Skip to 1:56)

    *Note how this Cherokee really tries its hardest to stay running.

    Also, what's the smoke coming out of the engine bay of the beater Covet?
     
  19. RoyalAce2000

    RoyalAce2000
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    yes I have a lot why it doesn't show up on beamng base vehicles either
     
  20. Nadeox1

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    Because of mods probably. If they edit original vehicle, there is a chance those mods are making the game use files that do not contain support for thermals.
    Go to the MOD MANAGER and press the 'Disable all' button, then retry.
     
  21. Drivver

    Drivver
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    Well I got new keyboard just yet, so. YouTube failed to compress this vid, it looks terrible, while source vid look fine but move on first I showed that I use only sounds mods and that i used stock vanilla race preset. 0:31 to 0:33 What I showed was that coolant (water) heat capacity is too low. If you look at first seconds of acceleration, you'll see that it went from 83*C to 91*C in less than 2 seconds. I know it's powerfull engine and it produces a lot of heat, but it doesn't look right, it's cooling and overheating too fast, yes I know it's only a game, and it needs balance, but overheating should be something rare, which comes in extreme conditions or by damage. I've been doing a lot of fun with old scrapyard's cars, and coolant isn't like that. Going in 1, 2 gear or reversing for good 5 minutes, all with pedal to the metal, I've driven old minibus (VW transporter) in over 40*C in very long traffic jam after like 4 hours of 1st/neutral/1st/neutral it didn't overheated - it was when known accident happened in Germany on highway with Sindbad bus and Polish bus, lots of deaths but any way. I'm also an mechanic, and I know that cars don't heat their coolant that easy and it takes more time. I drive lots of cars everyday and I'm looking at coolant temperature gauge, and it raises way slower. IMO we should get cars with ambient temperature, you know if we have 20*C on map we should get a car with about that temp coolant, block and rest of components, so we could heat it to normal temp, then we would see how the temperature gauge rises on HUD and in cockpit, and it could take more time, this would be nice, and impressive, while we have at start 80*C it made me kinda sad, becouse to show that it actually works, it heats too fast. Not that I'm specialist, but as car mechanic I have a bit of knowledge, I know that not everything can be simulated, I understand it pretty well, but to balance something in to game I'd made it rather harder to overheat engines than in real life. Next part of video 0:33 - 0:48 shows how it heated from 91*C to 100*C while going over 100km/h to 200km/h !! With open thermostat, shouldn't it stay at 91*C while it was going fast, and air resistance is pretty high at those speeds? Then at 0:59 to 1:05 (6 seconds) I've made small burnout and car overheated from 103*C to 120*C and then next pretty small slide from 1:07 to 1:10 (3 seconds) and it went from 119 to 130 and it started to breaking itself. After that I wasn't able to cool it down in time, so it got broken piston rings and head gasket, but it wasn't problem for this one to reach it Vmax with those 2 damages. Also I'll say it once again interoolers are way to efficient.

    It's a very fast reply becouse I'm very busy last few days so forgive me if I made a lot of grammar mistakes.
     
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