2023 Aston Martin | Aramco | Cognizant F1 Team

[diffuser]

The Mercedes Engine engineers {HPP} would have known that AM did not have an issue fueling the engine {as they see all the engine related data}- so the race team assumed it was a braking issue {which data they can't see}.

In previous Races, Qualifying or FPs...I've heard Alonso's engineer refer to a gas gauge. I don't think it's on the steering wheel. I think it reports back internally to the engineer. I wonder if that was malfunctioning and had them concerned.

[AR3-GP]

My guess would be that you end up with less deployment with lift and coast. You loosing some of the regenerative braking.

In theory, the MGU-H is able to harvest when the driver lifts (this will go away from 2026, sadly).

When your off the throttle?

Why not? The wheels are driving the crankshaft on lift off. The crank is rotating the pistons and the pistons are pumping air at 10,000 RPM out of the exhaust manifold. There's some energy in that which would cause the turbine to spin. If the turbine is spinning, there's energy to take from it.

[Zynerji]

In theory, the MGU-H is able to harvest when the driver lifts (this will go away from 2026, sadly).

When your off the throttle?

Why not? The wheels are driving the crankshaft on lift off. The crank is rotating the pistons and the pistons are pumping air at 10,000 RPM out of the exhaust manifold. There's some energy in that which would cause the turbine to spin. If the turbine is spinning, there's energy to take from it.

Ooh! Hot blowing?

[diffuser]

In theory, the MGU-H is able to harvest when the driver lifts (this will go away from 2026, sadly).

When your off the throttle?

Why not? The wheels are driving the crankshaft on lift off. The crank is rotating the pistons and the pistons are pumping air at 10,000 RPM out of the exhaust manifold. There's some energy in that which would cause the turbine to spin. If the turbine is spinning, there's energy to take from it.

I know some superchargers require 60 hp to spin @ 12K rpm and generate 10 psi of boost. I'm sure the MGU-H would require around that. if you take any car or Turbo charged car like a RS5, there is a ton of back(reverse) pressure when they come off the throttle.

[diffuser]

When your off the throttle?

Why not? The wheels are driving the crankshaft on lift off. The crank is rotating the pistons and the pistons are pumping air at 10,000 RPM out of the exhaust manifold. There's some energy in that which would cause the turbine to spin. If the turbine is spinning, there's energy to take from it.

Ooh! Hot blowing?

Hot blowing was burning fuel to generate hot exhaust gases while off throttle.

[saviour stivala]

When your off the throttle?

Why not? The wheels are driving the crankshaft on lift off. The crank is rotating the pistons and the pistons are pumping air at 10,000 RPM out of the exhaust manifold. There's some energy in that which would cause the turbine to spin. If the turbine is spinning, there's energy to take from it.

Ooh! Hot blowing?
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The wheel are 'rotating the crankshaft and not driving it on lift off. And, the crank is 'moving the pistons up and down' and not rotating them.

[saviour stivala]

When your off the throttle?

Why not? The wheels are driving the crankshaft on lift off. The crank is rotating the pistons and the pistons are pumping air at 10,000 RPM out of the exhaust manifold. There's some energy in that which would cause the turbine to spin. If the turbine is spinning, there's energy to take from it.

I know some superchargers require 60 hp to spin @ 12K rpm and generate 10 psi of boost. I'm sure the MGU-H would require around that. if you take any car or Turbo charged car like a RS5, there is a ton of back(reverse) pressure when they come off the throttle.

The formula 1 turbocharged ICE will have no 'ton/s of back (reverse) pressure in the exhaust system when they come off the throttle, because intake to pistons will be totally shut-off. And when the intake to pistons is totally shut-off (throttle lift means throttles closed) fuel to engine (fueling) is also shut-off, So the exhaust system is not only 'cold' and not 'hot' blowing, but blowing at i's weakest of pressures. Cold and at its weakest exhaust pressure is useless for the turbine to do any useful work.

[Rodak]

The Mercedes Engine engineers {HPP} would have known that AM did not have an issue fueling the engine {as they see all the engine related data}- so the race team assumed it was a braking issue {which data they can't see}.

Are you suggesting the Mercedes engine people assigned to AM would communicate AM engine data to the Mercedes team during the race? That would be blatant cheating.

[AR3-GP]

The Mercedes Engine engineers {HPP} would have known that AM did not have an issue fueling the engine {as they see all the engine related data}- so the race team assumed it was a braking issue {which data they can't see}.

Are you suggesting the Mercedes engine people assigned to AM would communicate AM engine data to the Mercedes team during the race? That would be blatant cheating.

No. That has nothing to do with the chassis constructor in Brackley. The engine constructor in Brixworth is a separate entity that provides embedded engine technicians at each customer team.

[Zynerji]

Why not? The wheels are driving the crankshaft on lift off. The crank is rotating the pistons and the pistons are pumping air at 10,000 RPM out of the exhaust manifold. There's some energy in that which would cause the turbine to spin. If the turbine is spinning, there's energy to take from it.

Ooh! Hot blowing?

Hot blowing was burning fuel to generate hot exhaust gases while off throttle.

Which would spin the turbo, and allow off throttle MGUH regeneration.

[saviour stivala]

Ooh! Hot blowing?

Hot blowing was burning fuel to generate hot exhaust gases while off throttle.

Which would spin the turbo, and allow off throttle MGUH regeneration.

While 'hot' blowing was burning fuel, 'cold' blowing was not. They both were used before the hybrid era, because at that time there were no rules re ICE throttles and throttle pedal relationship. Those two modes of blowing the diffuser are not possible nowadays, and neither 'off-throttle' cold blowing of turbine, this as when driver goes off-throttle, ICE intake throttles are ditto-closed. and when cylinders cannot breath, cylinders cannot pump-out into exhaust. meaning the turbine is as good as useless in so much as generating any energy.

[Andres125sx]

when was the last year that there were 3 multiple WDC's on the podium? it had to be last century unless you count lewis before he got his second in 2014.

If Australia this year doesn't count then it would be Qatar 2021.

Ive noticed the car being a looser on the rear end as shown by Lance spinning and Fernando with that uncharacteristic wall hit. Compare to the start of the season when it looked absolutely planted when Stroll drover around the outside on Sainz at the hairpin in Jeddah.

It's likely they haven't fully optimised the car yet as Krack says after the upgrades.

We need Lance to have more consistent weekends, I hope it starts from Austria. Wish I'd know what is the problem if there is any. No one is asking for him to beat Fernando but he needs to be in decent points scoring positions at least. He's not as bad as his last races would say, so I trust he needs to get into a good rhythm.

IMHO problem with Lance is, apart from RBR who is on a different league, all the rest of the grid is as close as ever, so even a normal gap between teammates about 3-4 tenths put Lance a lot of positions down Alonso when traditionally, that gap only meant few positions difference

[-wkst-]

AMUS video blog (Michael Schmidt statements about AM):

- Schmidt thinks the gap between RBR and AM is much closer now with this update, VER didn't hide much pace according to Mercedes engineers
- The internal data before Canada were even better, so the whole upgrade will show his full effect in Austria/Silvestone, once they fully understand it
- Car is a bit more efficient with the update
- Working window of the car is bigger now. He heard that is was quite small (he didn't notice that so far). It helped a lot that they were at street circuits, once they got to a permanent circuit (Barcelona), they fell out of the window because of the ground height they had to drive in Barcelona. This should be fixed now.

[KimiRai]

https://the-race.com/formula-1/whos-won ... s-shuffle/

Aston Martin will soon have its aero testing limit cut from 100% to an 80% due to its 3rd position in the championship.

[Tommy Cookers]

Hot blowing was burning fuel to generate hot exhaust gases while off throttle.

Which would spin the turbo, and allow off throttle MGUH regeneration.

While 'hot' blowing was burning fuel, 'cold' blowing was not. They both were used before the hybrid era, because at that time there were no rules re ICE throttles and throttle pedal relationship. Those two modes of blowing the diffuser are not possible nowadays, and neither 'off-throttle' cold blowing of turbine, this as when driver goes off-throttle, ICE intake throttles are ditto-closed. and when cylinders cannot breath, cylinders cannot pump-out into exhaust. meaning the turbine is as good as useless in so much as generating any energy.

there is a lot of energy in the turbo and MGU-H rotating at c.120000 rpm
telemetry has shown this rpm being rapidly consumed on corner entry by MGU-H generation activity
presumably the rpm thereafter is largely restored by turbo action (not MGU-H motor activity aka spooling-up)

and anyway ....
do we know 'throttle-off'' what air conditions the compressor 'sees' ?
who says the throttles are closed ?
ie is the 10500 rpm ICE is sucking on a vacuum ? - or freely pumping induction air ?
isn't there an iris-type 'throttle' (upstream of the compressor) ?