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.
OO7
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Re: Mercedes Power Unit Hardware & Software

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For what it's worth, Mercedes reverted to a more symmetrical layout for 2019.

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henry
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subcritical71 wrote:
Fri Dec 20, 2019 9:06 pm
https://twitter.com/ScarbsTech/status/1 ... 3820147713

Just under 8MJ, I think a bit smaller capacity than expected. Mercedes 2016 ES.
A lot smaller. Given that Mercedes claim 95% efficiency for the ES the average amount of charge that can be cycled per lap during a race might be around 1MJ.

Also given the minimum weight limit this is well short of state of the art which is likely twice this size.
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gruntguru
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Perhaps the label indicates the amount of storage available under racing conditions (high charge/discharge rates). It certainly would not be the absolute capacity of the battery - the top and bottom 20% or so can only be used quite slowly.
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Sierra117
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https://hexus.net/ce/news/general/13818 ... g-battery/

Towards the end is mention of working with Mercedes. Will we see batteries used by the W11 or W12 based on these in 2020 or 2021?
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kudryavchik
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Re: Mercedes Power Unit Hardware & Software

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Data on battery characteristics in F1, LMP1 and FE

Image

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PlatinumZealot
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F1 battery is 25kg or less last time i read...

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Image

via @ScarbsTech

OO7
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Also.........
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via @ScarbsTech

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Mudflap
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The 2016 Merc PU is now exposed at the Silverstone museum. It's a complete unit minus hydraulics and fuel system I am told.

Unless someone beats me to it I will post pics in a couple weeks when I plan to visit.

Not sure if it on permanent display or just a loaner.
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GhostF1
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Looking good for this year. Mercedes, Ferrari and Honda are all publicly confident in another step forward with their 2020 engines. Genuinely excited to see how we start this year!

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GhostF1 wrote:
Mon Jan 06, 2020 7:00 am
Looking good for this year. Mercedes, Ferrari and Honda are all publicly confident in another step forward with their 2020 engines. Genuinely excited to see how we start this year!
The dutch article changed the exact meaning of what Toto told. He did not tell "if we make all necessary adjustments".
The original quote is: "If all necessary measures are being taken, we should have a balanced competition (in regards of the PU) again."

This sounds different and if you ask me it sounds like he expects Ferrari to lose power because of upcoming directives.

saviour stivala
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“this sounds different and if you ask me it sounds like he expects FERRARI to lose power because of upcoming directives”. If Wolff expects FERRARI to lose power because of upcoming directives, how can he be confident that the Mercedes engine department in Brixworth can do something about the (their) backlog engine wise?. In real life the way things work is, if one repeats and repeats, and it doesn’t matter if one sounds like a budgerigar. Chances are that at least some of the repeating stick and will sort of soothe some minds.

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Andy Cowell on 2020 engine
Andy Cowell wrote:“We have had to develop an even wider area of the PU. We have looked at every single system,” said Andy Cowell, Managing Director of Mercedes-AMG High Performance Powertrains. “We have worked on a huge array of projects, and when summed together they will hopefully help propel the car around the track quicker and give the aerodynamics team more opportunities to improve as well.”

In the six years since its introduction, the Mercedes PU has made significant progress not just in terms of power output and reliability, but also in terms of its efficiency. From 2014 to today, the thermal efficiency has improved from about 44 percent to over 50 percent. Thermal efficiency describes an engine’s ability to convert fuel energy into useful work. Achieving more than 50 percent means that that more than half of the energy in the fuel can be used to propel the car – making the current F1 Power Unit one of the most efficient internal combustion engines ever built. A typical road car engine would usually reach about 30 percent of thermal efficiency.

Trying to come up with new solutions to improve performance and reliability for the seventh year of stable regulations is not an easy thing to do – and the success of it depends to a large extent on the right mindset.

“There is no such thing as perfection, there is always the opportunity to improve and all of us have that mindset,” said Andy. “We’re always improving every detail - the materials, the hardware and ingredients, but also things like our design tools. You know there are areas where you can get better. Being self-critical and keeping an open mind is at the core of that mindset.”

Last year’s car struggled in hot ambient temperatures and team members in both Brackley and Brixworth have worked together to improve the cooling package for the W11. In addition to larger radiators in the car, the team has focused on making the cooling more efficient by proving out higher operating temperatures for the engine.

“We are putting significant effort into making sure that all the cooling fluids on the Power Unit operate at a higher temperature,” said Andy. “This increases the temperature difference between that coolant fluid and the ambient temperature that we are racing in, which increases the effectiveness of the cooling system. That’s a tough challenge though, because large parts of the engine are made from aluminium and the temperatures that we are operating at mean the material properties are decaying quite rapidly. Managing that over an eight-race distance Power Unit cycle is a tough engineering challenge but that’s what we are striving for. As Power Unit engineers we don’t just focus on crankshaft power, we also focus a tremendous amount on the packaging and reducing the overheads for the aerodynamicist, so that they can mainly focus on keeping the car planted through the corner.”
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OO7
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Morteza wrote:
Fri Feb 14, 2020 12:12 pm
Andy Cowell on 2020 engine
Andy Cowell wrote:“We have had to develop an even wider area of the PU. We have looked at every single system,” said Andy Cowell, Managing Director of Mercedes-AMG High Performance Powertrains. “We have worked on a huge array of projects, and when summed together they will hopefully help propel the car around the track quicker and give the aerodynamics team more opportunities to improve as well.
I'm interested in the bolded text particularly. :)