2014 Gear ratios and Final Drives

[turbof1]

Don't forget that the mguk will be delivering power to the mguh to spooling the turbo under braking, which will not go to the ES. Realistically the mguk needs to harvest more then 2MJ to get everything out of a normal lap. The mgu-h will barely contribute anything to the ES. Perhaps a very tiny bit just when braking starts. In a perfect world you want the mgu-h not take anything from the ES, either relying on exhaust gasses or the mguk to spool the turbo, and the mguk harvesting enough to get 2MJ plus enough energy to let the mguh spool the turbo (to negate turbo lag when getting back on the power).

The MGU-H starts harvesting just at soon as the turbo reaches maximum boost.

All the energy will probably be send to the mgu-k to get the extra power on the drive train, so I don't think it'll be getting to the ES.

[mikeerfol]

Will the gear ratios be fixed for the entire year or the half of it, because I think I saw somewhere the latter mentioned.

[Paul]

Unless something has changed very recently, one ratio switch is allowed during the season.

[Holm86]

In 2014 one change of ratios are permitted in season. In 2015 and onwards ratios are fixed before the season starts and can first be changed again next season.

[mikeerfol]

In 2014 one change of ratios are permitted in season. In 2015 and onwards ratios are fixed before the season starts and can first be changed again next season.

If they change their ratios, do they have to stick to it or they can go back to the original one?

[Holm86]

In 2014 one change of ratios are permitted in season. In 2015 and onwards ratios are fixed before the season starts and can first be changed again next season.

If they change their ratios, do they have to stick to it or they can go back to the original one?

They nominate all ratios before the season. IF the choose to change these ratios during the season they cant change back to the old ones

[Holm86]

The exact FIA wording :

9.6.2 Each competitor must nominate the forward gear ratios (calculated from engine crankshaft to drive shafts) to be employed within their gearbox. These nominations must be declared to the FIA technical delegate at or before the first Event of the Championship. For 2014 only a competitor may re-nominate these ratios once within the Championship season, in which case the original nomination becomes immediately void. Ratio re-nominations must be declared as a set.

[mikeerfol]

The exact FIA wording :

9.6.2 Each competitor must nominate the forward gear ratios (calculated from engine crankshaft to drive shafts) to be employed within their gearbox. These nominations must be declared to the FIA technical delegate at or before the first Event of the Championship. For 2014 only a competitor may re-nominate these ratios once within the Championship season, in which case the original nomination becomes immediately void. Ratio re-nominations must be declared as a set.

Thanks

[De Jokke]

Question for you guys:


they need to chose their gear ratios for the whole season?
Why, to prevent engine mapping cheating?


What stupid rule is that. Driving through monaco in 3-5th gear in corners where you would do 1-2nd gear, who invents such nonsense...

[Holm86]

Question for you guys:


they need to chose their gear ratios for the whole season?
Why, to prevent engine mapping cheating?


What stupid rule is that. Driving through monaco in 3-5th gear in corners where you would do 1-2nd gear, who invents such nonsense...

You should seriously take a look at some topics on this forum regarding the 2014 regulations!

[De Jokke]

Anyone else care to explain it to me?

[Owen.C93]

Anyone else care to explain it to me?

Sure, check the regulation threads for more info and discussion!

http://www.f1technical.net/forum/viewto ... start=1905

[De Jokke]

You guys, omg =D>

[wuzak]

How much energy can you roughly realistically harvest with the mguk?

The limit is 2MJ/lap MGUK->ES but that is bottle necked by the 120kw limit in/out on the MGUK. With the amount of time the cars see braking and figuring the MGUK will absorb all 100% of brake energy (which it most certainly will not) it only nets around 1MJ/lap. It will be much less than that with brake bias.

I don't think you can look at it directly like that. Because it takes a hell of a lot more than 120 Kw to stop the car. So even with the brake bias there should still be 120 Kw for the MGU-K to harvest.

And 2MJ with 120 Kw harvest is done in 16.66 sec. I don't know how much time of a lap is pure braking but I think its due able.

I did some quick calcs on another forum, based on Brembo braking data provided to me by another member.

I assumed 60/40 brake bias split.

Code: Select all

Circuit        Energy
SINGAPORE      2460
ABUDHABI       1846
AUSTIN         1567
BAHRAIN        1504
MONACO         1517
MALAYSIA       1463
KOREA          1349
HUNGARY        1284
SPA            1292
CHINA          1216
NURBURGRING    1171
CANADA         1159
CATALUNYA      1138
BRAZIL         1064
INDIA          1064
SUZUKA         1061
AUSTRALIA      992
MONZA          938
SILVERSTONE    730

And then it was pointed out that the bias would be further forward - perhaps 65/35, so I recalculated.

Code: Select all

Circuit        Time  Change
SINGAPORE      2455    5
ABUDHABI       1843    3
AUSTIN         1559    8
BAHRAIN        1504    0
MONACO         1507   10
MALAYSIA       1449   14
KOREA          1347    2
HUNGARY        1284    0
SPA            1288    4
CHINA          1216    0
NURBURGRING    1171    0
CANADA         1159    0
CATALUNYA      1138    0
BRAZIL         1064    0
INDIA          1064    0
SUZUKA         1056    5
AUSTRALIA       992    0
MONZA           937    1
SILVERSTONE     730    0

Even on this very basic analysis, you can see that the cars will struggle to recover 2MJ from braking, and some tracks won't even allow half of that.

[wuzak]

Anyone else care to explain it to me?

8 ratios are more than enough to cover the entire season.

In fact, with Hamilton's admission that they are using 4th or 5th gears in hairpins, it may be more than enough.