Red Bull RB9 Renault

[emmepi27]

Red Bull has the rim's cross-cut inner surface on the front since the pre-season test.
In my personal theory, they should work like an heat sink. What do you think about?



rim's inner surface (Singapore): http://img2.auto-motor-und-sport.de/Red ... 722764.jpg

Video captured photo of Barcellona's test: https://pbs.twimg.com/media/BVKxqIICAAAdful.jpg
Melbourne: https://fbcdn-sphotos-a-a.akamaihd.net/ ... 3799_n.jpg

[Kiril Varbanov]

Red Bull has the rim's cross-cut inner surface on the front since the pre-season test.
In my personal theory, they should work like an heat sink. What do you think about?

https://pbs.twimg.com/media/BVK5xF7CIAAWpnC.jpg

rim's inner surface (Singapore): http://img2.auto-motor-und-sport.de/Red ... 722764.jpg

Video captured photo of Barcellona's test: https://pbs.twimg.com/media/BVKxqIICAAAdful.jpg
Melbourne: https://fbcdn-sphotos-a-a.akamaihd.net/ ... 3799_n.jpg

I have seen similar stuff with photovoltaic systems, but slanted design, not A pin fins.

Comment for the pace of the car from Mark Gillan via James Allen's blog - http://www.jamesallenonf1.com/2013/09/a ... e-to-stay/

[sirexilon]

Good thing that Gian Carlo Minardi openly have questions about the RB.
I hope this is a wakeup call for FIA to do some serious scrutineering and this time with a reaction depending on the results of the scrutineering.
In my opinion F1 is a fake if RB can continue with this blatant cheating (rule bending is not a good description for this practices anymore)

Well even though I'm not a fan of RB much less of finger boy, and even though I like Minardi's comments, I prefer to see real proof before saying that F1 is a fake.

Sometimes we need to think outside our ego for the team we like and see that a superior car can be made by others. We know Adrian is a magician, and he likes to work on the limits of the rules, if the rules are not broken with the testing FIA has is hard to prove that a wing or something else bends more than it should, even if we can think we see it in a picture. Is a hard pill to swallow, but If there was some kind of proof I think teams will make a real complain about it, and not sit still and let them win. Let's not jump to conclusions, let's try to find proof before declaring them guilty.

[BlackSwan]

Also regarding RB9's secret!

http://www.f1analisitecnica.com/2013/09 ... ref=tw&m=1

can someone translate please(whitout robot)

Here I am, directly from Italy

The reporter says that the strange sound coming from Vettel's RB9 is more pronounced in the center of the curve instead of at the exit of it. This means that the sound is not due a sort of TC.

So the sound is due to Vettel's ability because he brakes hard, indeed in the middle of the curve he usually have a lower speed with respect to the other, to compensate this, Vettel is able to accelerate a little bit in the middle of the curve. In this way the exaust gases create the blowing diffuser effect stabilyzing the car.

At the end reporter states that the RB is really efficient exploiting this system at the point that they have recovered the downforce value of the 2011 season.

Apologies to everybody for my bad English

[froggy]

Interesting images of Webber meltdown...

[Owen.C93]

Yeah I've been trying to find some proper images but it's been hard.

[ringo]

The cylinder cut out makes sense. If the engine can produce less power but still have a good mass flow at higher rpm to the exhaust, it bodes well for limiting torque to the wheels corner exit while at the same time blowing the diffuser with a lot of hot gases.

It's kind of a traction control if you think about it, just that it's not a feedback system, maybe vettel manually cuts out the cylinders some how which limits his torque to the wheels, but has that high speed air to blow the rear.
Probably just squeezes a paddle, cuts out 4 cylinders, releases paddle to bring back 8 cylinders when car is up to speed and about to leave the corner.

[Owen.C93]

The cylinder cut out makes sense. If the engine can produce less power but still have a good mass flow at higher rpm to the exhaust, it bodes well for limiting torque to the wheels corner exit while at the same time blowing the diffuser with a lot of hot gases.

It's kind of a traction control if you think about it, just that it's not a feedback system, maybe vettel manually cuts out the cylinders some how which limits his torque to the wheels, but has that high speed air to blow the rear.
Probably just squeezes a paddle, cuts out 4 cylinders, releases paddle to bring back 8 cylinders when car is up to speed and about to leave the corner.

Depends how you define engine mapping, you can only change the engine map twice per lap and I believe otherwise you can only control the power output via the throttle.

[tpe]

I am not a mechanical engineer, but if ECU controls the spark plugs, it's easy to have an EBD like effect and at the same time, control the torque via cylinder cutting...

[Owen.C93]

I am not a mechanical engineer, but if ECU controls the spark plugs, it's easy to have an EBD like effect and at the same time, control the torque via cylinder cutting...

Yep, but not via a paddle.

[Jackles-UK]

Not that I actually buy the whole 'fake' traction control conspiracy theory one bit but would it not be easier just to have it controlled by the position of the throttle pedal? I think this is similar to the way Lotus or Ferrari engage their KERS (or DRS - I can't remember off the top of my head!) system.

Imagine if you will: When the throttle is pressed 50% of its travel (mid-corner for example) it opens up 4 of the cylinders, at 75% (corner exit/traction zones) 6 come in and at full throttle on straights the full 8 fire up. Technically it would be fully driver operated and be pretty intuitive allowing the drivers to just have at it rather than second guessing the ignition cycle of the engine! They would need to retard the ignition a bit with a trick engine map but if they make it fire when no cylinders were on back in 2011 I'm sure they can reverse the trick.

[irang]

CRUCIAL DEVELOPMENTS AT RED BULL by Gary Anderson

They have made two significant and inter-related changes to their car which are almost certainly at least partly responsible for this - one to the vertical vanes on the floor in front of the rear tyres; and another to the shape of the trailing edge of the diffuser, the upwardly-curved part of the floor at the back of the car.

More http://www.bbc.co.uk/sport/0/formula1/24347358

[tpe]

I am not a mechanical engineer, but if ECU controls the spark plugs, it's easy to have an EBD like effect and at the same time, control the torque via cylinder cutting...

Yep, but not via a paddle.

You don't need paddle! Just a correct, and clever way to ignite spark plugs...

[ringo]

A paddle doesn't have to be what they are using but it's perfectly possible and ergonomic for the driver to have independent input from the throttle pedal.
I guess it's down to what the regs say about engine torque and what inputs are allowed to vary it.

If it were up to me and the rules permitted, Vettel would have a paddle that he would squeeze on corner exit and control as he sees fit.

End of the day, there is a traction advantage, and this is attributed to more load on the rear axle on corner exit.
Whether that be down to the shape of the car, smart diffuser blowing, or traction limiting, it will be quite difficult to confirm.
I guess we need to watch the hands and feet more closely and listen to the engine more keenly.

[ebare]

It's kind of a traction control if you think about it, just that it's not a feedback system, maybe vettel manually cuts out the cylinders some how which limits his torque to the wheels, but has that high speed air to blow the rear. Probably just squeezes a paddle, cuts out 4 cylinders, releases paddle to bring back 8 cylinders when car is up to speed and about to leave the corner.

As for the paddles, the answer is 'no'. Tech regulations state: "5.5.1 The only means by which the driver may control the engine torque is via a single chassis mounted foot (accelerator) pedal."

Imagine if you will: When the throttle is pressed 50% of its travel (mid-corner for example) it opens up 4 of the cylinders, at 75% (corner exit/traction zones) 6 come in and at full throttle on straights the full 8 fire up. Technically it would be fully driver operated and be pretty intuitive allowing the drivers to just have at it rather than second guessing the ignition cycle of the engine! They would need to retard the ignition a bit with a trick engine map but if they make it fire when no cylinders were on back in 2011 I'm sure they can reverse the trick.

I'm also not an engineer but i think that sequencial fire up of the cilinders is useless because of Article 5.5.5 "At any given engine speed the driver torque demand map must be monotonically increasing for an increase in accelerator pedal position." And forbidden by Article 5.6.6 "Except when anti-stall or idle speed control are active, ignition base offsets may only be applied above 80% throttle and 15,000rpm and for the sole purpose of reducing cylinder pressure for reliability."