Mercedes Power Unit Hardware & Software

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
zibby43
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Re: Mercedes Power Unit Hardware & Software

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Longley wrote:
Fri Mar 26, 2021 9:51 pm
It might also be that Mercedes has something up its sleeve, with what is believed to be a super-cooling system within the inlet plenum for short bursts of extra power.

Source: https://the-race.com/formula-1/mark-hug ... ooks-like/

Interesting. About how many hoursepowers are we probably talking here?
And how are these extra horses deployed with a single engine mode?

flexcon
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Re: Mercedes Power Unit Hardware & Software

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zibby43 wrote:
Longley wrote:
Fri Mar 26, 2021 9:51 pm
It might also be that Mercedes has something up its sleeve, with what is believed to be a super-cooling system within the inlet plenum for short bursts of extra power.

Source: https://the-race.com/formula-1/mark-hug ... ooks-like/

Interesting. About how many hoursepowers are we probably talking here?
And how are these extra horses deployed with a single engine mode?
Are the drivers allowed to use overtake button? Maybe it’s a set parameter within overtake.


Sent from my iPhone using Tapatalk

zibby43
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Re: Mercedes Power Unit Hardware & Software

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flexcon wrote:
Fri Mar 26, 2021 11:36 pm
zibby43 wrote:
Longley wrote:
Fri Mar 26, 2021 9:51 pm

Source: https://the-race.com/formula-1/mark-hug ... ooks-like/

Interesting. About how many hoursepowers are we probably talking here?
And how are these extra horses deployed with a single engine mode?
Are the drivers allowed to use overtake button? Maybe it’s a set parameter within overtake.


Sent from my iPhone using Tapatalk
Interesting. I know they use that for ERS deployment purposes.

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MtthsMlw
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Re: Mercedes Power Unit Hardware & Software

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Just throwing the paragraph from the tech regs in here
5.6.8 Engine plenum (as defined in line 4 of Appendix 2 to these regulations) air temperature must be more than ten degrees centigrade above ambient temperature. When assessing compliance, the temperature of the air will be the lap average recorded by an FIA approved and sealed sensor located in an FIA approved location situated in the engine plenum, during every lap of the qualifying practice session and the race. The first lap of the race, laps carried out whilst the safety car is deployed, laps with a time at least 20% greater than the fastest lap of the session, pit in and out laps and any laps that are obvious anomalies (as judged by the technical delegate) will not be used to assess the average temperature. The ambient temperature will be that recorded by the FIA appointed weather service provider. This information will also be displayed on the timing monitors.

pursue_one's
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Re: Mercedes Power Unit Hardware & Software

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Mercedes W12: la nuova plenum camera altera negativamente il rendimento del motore endotermico
https://www.funoanalisitecnica.com/2021 ... sh_ce=8844

The new plenum is not giving the desired results, not allowing to exploit the endothermic at 100%.
This factor obviously also affects the electricity system, since it is possible to recover a smaller amount of energy than that foreseen in the simulations.


How do you think can be fixed within the rules?

zibby43
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Re: Mercedes Power Unit Hardware & Software

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pursue_one's wrote:
Tue Mar 30, 2021 11:03 am
Mercedes W12: la nuova plenum camera altera negativamente il rendimento del motore endotermico
https://www.funoanalisitecnica.com/2021 ... sh_ce=8844

The new plenum is not giving the desired results, not allowing to exploit the endothermic at 100%.
This factor obviously also affects the electricity system, since it is possible to recover a smaller amount of energy than that foreseen in the simulations.


How do you think can be fixed within the rules?
Reliability fixes throughout the season are still allowed, correct?

Xwang
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Re: Mercedes Power Unit Hardware & Software

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zibby43 wrote:
Tue Mar 30, 2021 7:01 pm
pursue_one's wrote:
Tue Mar 30, 2021 11:03 am
Mercedes W12: la nuova plenum camera altera negativamente il rendimento del motore endotermico
https://www.funoanalisitecnica.com/2021 ... sh_ce=8844

The new plenum is not giving the desired results, not allowing to exploit the endothermic at 100%.
This factor obviously also affects the electricity system, since it is possible to recover a smaller amount of energy than that foreseen in the simulations.


How do you think can be fixed within the rules?
Reliability fixes throughout the season are still allowed, correct?
It doesn't seem a reliability issue. It is not as efficient as hoped at design time (if true).
I'm still learning English so please excuse me if my English is not good enough and feel free to correct me via PM if you want.

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hUirEYExbN
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Re: Mercedes Power Unit Hardware & Software

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pursue_one's wrote:
Tue Mar 30, 2021 11:03 am
Mercedes W12: la nuova plenum camera altera negativamente il rendimento del motore endotermico
https://www.funoanalisitecnica.com/2021 ... sh_ce=8844

The new plenum is not giving the desired results, not allowing to exploit the endothermic at 100%.
This factor obviously also affects the electricity system, since it is possible to recover a smaller amount of energy than that foreseen in the simulations.


How do you think can be fixed within the rules?
If it is indeed a problem, then I think the plenum is allowed updates?
§5.22 of the technical regulations and appendix 2?

zibby43
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Re: Mercedes Power Unit Hardware & Software

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hUirEYExbN wrote:
Tue Mar 30, 2021 8:24 pm
pursue_one's wrote:
Tue Mar 30, 2021 11:03 am
Mercedes W12: la nuova plenum camera altera negativamente il rendimento del motore endotermico
https://www.funoanalisitecnica.com/2021 ... sh_ce=8844

The new plenum is not giving the desired results, not allowing to exploit the endothermic at 100%.
This factor obviously also affects the electricity system, since it is possible to recover a smaller amount of energy than that foreseen in the simulations.


How do you think can be fixed within the rules?
If it is indeed a problem, then I think the plenum is allowed updates?
§5.22 of the technical regulations and appendix 2?
The way I interpret that is that it’s a part that may be replaced without penalty (unlike the ICE, ES, etc.).

However, since the part meets that definition of replaceable, I’m guessing that you’re right, and thus it would therefore be upgradable.

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PlatinumZealot
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Re: Mercedes Power Unit Hardware & Software

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I don't buy that story.

Their advanced dyno should seen that issue. So if the problem is there then Mercedes already knew of it before the season started.
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hUirEYExbN
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Re: Mercedes Power Unit Hardware & Software

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PlatinumZealot wrote:
Thu Apr 01, 2021 10:30 pm
I don't buy that story.

Their advanced dyno should seen that issue. So if the problem is there then Mercedes already knew of it before the season started.
You would think so. I wouldn't think this would be something that would change whether the engine is in the car or not.

Would the dustiness of the circuit make some difference and perhaps be something they didn't anticipate?

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PlatinumZealot
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Re: Mercedes Power Unit Hardware & Software

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hUirEYExbN wrote:
Thu Apr 01, 2021 10:41 pm
PlatinumZealot wrote:
Thu Apr 01, 2021 10:30 pm
I don't buy that story.

Their advanced dyno should seen that issue. So if the problem is there then Mercedes already knew of it before the season started.
You would think so. I wouldn't think this would be something that would change whether the engine is in the car or not.

Would the dustiness of the circuit make some difference and perhaps be something they didn't anticipate?
For years teams have always brought special air filters for Bahrain for that reason. Even the in Naturally aspirated engine days.
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zibby43
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Re: Mercedes Power Unit Hardware & Software

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PlatinumZealot wrote:
Thu Apr 01, 2021 10:30 pm
I don't buy that story.

Their advanced dyno should seen that issue. So if the problem is there then Mercedes already knew of it before the season started.
I felt the same way, but in a recent article from The Race, it was implied that the issue was either discovered (or discovered to be worse than anticipated) during testing, and then improved for the first race:

“The Mercedes-engined teams have started the season with a small energy recovery limitation that the manufacturer’s Brixworth-based engine operation has already sought to improve since testing.”

Sevach
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Re: Mercedes Power Unit Hardware & Software

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Posting this here just as curiosity.

gruntguru
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Re: Mercedes Power Unit Hardware & Software

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I can still hear the cynics from ten years ago "F1 has never advanced the state of road car technology".
je suis charlie