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919 LMP1 Electronics Explained (official)

Discussion in 'Chit Chat Room' started by Coanda, Nov 23, 2016.

  1. Coanda

    Coanda Alien

    official word from Aris:-

    "The Low setting uses less battery, especially on higher speeds/gears
    The High setting uses more battery in higher speeds/gears

    The Preserve from Aggressive setting, changes how torque is transferred to the front wheels, depending on their slip and thus using more or less battery and heating/wearing more or less the front tyres. Obviously the aggressive setting will give faster lap times but put the front tyres in more stress as well as consume more battery/energy per lap.

    Keep in mind that LMP1 drivers use as low a setting as possible and manually boost the ERS with the button in order to overtake slower cars or defend their position"

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  3. Poguinhas

    Poguinhas Alien

    Only thing I don't get. Shouldn't the little whine from the engine only come when ERS is deployed?
  4. magzire

    magzire Alien

    Does the boost (blue bar) recharge at the same rate if it was at Low Preserve or High Aggressive?
  5. Alexander Zim

    Alexander Zim Rookie

    Could you explain about the "heave dumpers"?
  6. The heave dampers are the dampers on the heave spring (also commonly called 3rd spring/element)...you should only adjust them to dampen vertical movement as they don't have any movement in roll.
  7. Alexander Zim

    Alexander Zim Rookie

    Are they used to resist downforce damping? Or something else?
  8. baboon

    baboon Hardcore Simmer

    afaik they are used to minimize vertical chassis movement which helps the aero generate consistant levels of downforce through a corner, which also helps the drivers and tires to be more consistent. Pitch and roll sensitivity is big thing for those cars.

    I wonder if this car is in low-drag (lemans) configuration. iirc Porsche had 2 or 3 different aero packs through the WEC season. And then there was something going on with flexible bodyparts and a hydraulic interconnected suspension system called "Hub-Wank Fahrwerk". It's confusing for me because I read so much about these cars every season and the complexcicity of these machines is overwhelming for me.

    I also watched the last WEC race (byebye Audi) and it is crazy what the drivers have to do nowadays in this class. They constantly talking to their race engineers who are instructing them what settings to adjust on their wheels, much much more so than in F1.
    Seria17hri11er and Cote Dazur like this.
  9. CKraegel

    CKraegel Simracer

    What exactly are the green and yellow bars for?
  10. Jynnantonix

    Jynnantonix Simracer

    the green is how much battery is left. I think blue is how much boost is currently being applied and yellow I don't know. Anyone?
    CKraegel likes this.
  11. CKraegel

    CKraegel Simracer

    Because especially the yellow one is which really kicks in. But it hardly lasts one hotlap.
  12. You are limited as to how much energy you can use per lap, i think its 8MJ for LMP1. That is the yellow bar, and it resets every lap.

    If you are running it out before a lap, then use a lower usage profile, and boost manually as necessary.
    Seria17hri11er, baboon and CKraegel like this.
  13. CKraegel

    CKraegel Simracer

    Thanks for the answers. Will give it a try asap :)
  14. martcerv

    martcerv Alien

    Did a little race with a friend in these at Spa and loved it, I found using very low setting and manual kers to be best. So much strategy in it at Spa it makes for some great racing and id almost say the most fun car to race in AC possibly. Saving up kers in sections to get a run later, forcing the other to defend and use up more of their kers early in the lap to then give you a nice boost in the last sector for example was so much fun. I dont know about the other LMP1 cars coming from Audi and possibly Toyota but hope that we get some from the same year to have some fun racing. A WEC league with LMP1 and GT3 or GT2/e would be pretty cool I think, I think the racing is quite a bit better then in f1 in these cars and I only did 1 10 min qualy and a 12 lap race with 1 others at Spa in it so far.
    NZ-Banana, Seria17hri11er and baboon like this.
  15. DrQ

    DrQ Rookie

    You're talking about 2016 919. It's 2015-spec so it don't have different aero packs AFAIK.
  16. Depends of the car; can choose 2-8MJ.

    All 3 years of the 919 have had multiple aero packages....for some reason, Kunos decided to do the Le Mans version (which has even less downforce than it did IRL -offset by tires that are too grippy at high speeds- and makes it useless on most tracks).
    Seria17hri11er and baboon like this.
  17. herki

    herki Rookie

    Is there any way to lift the 8(?) MJ limit, at least for practice purposes? I think it would be plenty of fun to have no limit on hybrid power on longer tracks, but on the Nordschleife I run over the budget before I get a chance to have real fun with it.
  18. No
  19. baboon

    baboon Hardcore Simmer

    Yes, I probably have it all mixed up. Need to reread some of my old magazines :)
  20. 919 is bonkers. It's like driving a space ship. This is coming from a guy who plays Elite: Dangerous. For what it's worth. :D
  21. bhtooefr

    bhtooefr Rookie

    Worth noting that in the real world, at any track that isn't Le Mans, the allowable energy for a 2015 919 to deploy per lap is 8 * (length of circuit in km / 13.629) * 1.55. (At Le Mans, it's 8 MJ.) So, at the Nordschleife, in the real world, you'd be allowed to deploy 18.93 MJ/lap. (If it's the combined circuit, it becomes 23.61 MJ/lap.)

    Also, is the 919's ERS-H modeled in this? Because I'm noticing that the battery doesn't get charged, and ERS-H power would either go into the battery or to the wheels (and if it were to the wheels, it'd actually take away from the per-lap energy allocation, in LMP1).
    Seria17hri11er and baboon like this.

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