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R18 e-tron - how to set up the MGU

Discussion in 'Suggestions' started by redadeg, Jul 10, 2017.

  1. redadeg

    redadeg Racer

    Hi there!

    Is there a tutorial/manual avaiable how to set up the e-tron with its MGU/Kers oder what ever thing?

    I barely can follow other e-trons after chikanes when the accelerate. I think it has to do something with the MGU setting?

    Which one i use when?

    And the KERS Button hat not effect, right?

    Thanks for your help

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  3. Berniyh

    Berniyh Alien

    iirc it was in a different energy category, allowing for only smaller amount of energy to be deployed within a single lap.
    Therefore with most mappings the available KERS energy depletes quite fast.

    The concept of the R18 was superior fuel consumption and reliability, not speed, so on sprint races it will be hard to keep up.
    It does as long as the yellow bar in the gear app is not completely gone.
  4. redadeg

    redadeg Racer

    OK, in LeMans i am not able to get power after half of the lap.
  5. Berniyh

    Berniyh Alien

    Yeah, on long tracks it's quite hopeless. There, the best way is to go to charging mode and then hit the KERS button whereever you think it does have the most positive effect (I'd say before the long straights in gear 3-4).

    The other LMP2s will get a bit further but with the presets we have won't be able to get balanced ERS support over a complete lap either, even in the low preserve mode.
  6. redadeg

    redadeg Racer

    OK, thank for your help.

    What does which preset cause?
  7. Schnipp

    Schnipp Alien

    The two 'low' presets are more to add electric power at lower speeds, the 'high' settings add power up to higher speeds.
    Preserve or aggressive is depending on front wheel slip, preserve is cautious, if the tyres slip you will get low or no power (especially while the wheels aren't straight yet), aggressive puts quite a lot of power down even with some tyre slip.
    Hotlap just gives max. power.

    Power consumption from low to high in most cases:
    low preserve, low aggressive, high preserve, high aggressive, hotlap

    Though depending on track length the power won't last a full lap, in some cases even the low settings.

    In general most efficient use is fully manually.
    Use the power out of slow and mid-speed turns that are followed by a fast section because you gain most of it on early acceleration.

    I.e. take Monza:

    Using electric power after Lesmo 1 (T6) would simply be wasted, but using a good part of the power after Lesmo 2 (T7) will help a lot.

    So for Monza I'd say use around 1/4 of the electric energy after T2, T7, T10 and T11, maybe just a bit after T5 because you are at a very low speed.

    And the lower the exit speed of a turn is the more you gain by using the ERS energy, but keep in mind how long the following full throttle section is.
    So I'd use a bit more power out of T2 than out of Parabolica (T11) because you already have a pretty high exit speed in the final turn.

    On Le Mans I'd suggest to use a little bit on the S/F straight and roughly equal parts for the 5 fast sections (3x Mulsanne straights, the straight from Mulsanne to Indianapolis and the straight from Arnage to the Porsche Curves.
    paul_wev and oppolo like this.
  8. redadeg

    redadeg Racer

    Wow thanks. Every clear and understandable now.

    So, if i put it on "charge" no power would be given automatically and i can press "KERS" (assigned in the steering settings) to give it a go?

    Any other buttons needed for the E-Tron or is KERS everything i need?
    Schnipp and garyjpaterson like this.
  9. Yep, thats the way to do it.
  10. Berniyh

    Berniyh Alien

    Nope, only the KERS button.

    It's still not the optimum though. The thing is that the presets give you a modulation of electric support, depending on your speed and gear.
    The KERS button – in this case – rather acts like an overtake button. So when you press it, it's full electric support whatever the situation.

    But to fix that, we would need the ability to program our own presets, which however would give those users that know how to do that a significant advantage, so maybe not.
    Tomcul likes this.
  11. Its just an override, and because we don't have track specific presets its often the best way to go to make the most of your available energy.
    Schnipp likes this.
  12. redadeg

    redadeg Racer

    OK, everything clear now. Thanks a lot.

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