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.
LookBackTime
622
Joined: Tue Feb 19, 2013 7:33 pm

Re: Mercedes Power Unit

Post by LookBackTime » Fri Feb 05, 2016 5:16 pm

Imágenes del motor Mercedes PU106B Hybrid de 2015 :)

http://www.jamesallenonf1.com/2016/02/h ... gine-base/

Image

Image

Image

LookBackTime
622
Joined: Tue Feb 19, 2013 7:33 pm

Re: Mercedes Power Unit

Post by LookBackTime » Fri Feb 05, 2016 5:25 pm

From the article:

"The turbo has been another key area. Mercedes’ F1 engine department had little experience of turbos, but their truck division had plenty of experience of the size and reliability concerns of a turbo needed to deal with over 900bhp."

"The turbos on the 2016 cars are even larger than in 2014 when the new rules came in."

"Other areas of development have been the software that controls these units and the energy store, or battery. This is now down to around 20kg for an F1 car, from 25.3 kg in the 2009 season when it was attached to a KERS system that had half the power requirement and was deployed for only seven seconds per lap, instead of over 30 seconds as it is today."

"Software wise, when the car is on track, the systems now analyse the lap before to look for improvements in deployment and estimates the best locations for increased or reduced deployment, based on lap time gain."

OO7
90
Joined: Tue Apr 06, 2010 4:49 pm

Re: Mercedes Power Unit

Post by OO7 » Fri Feb 05, 2016 7:06 pm

I love the compactness and neatness of the Mercedes design. You don't see wiring looms, cables and piping snaking willy nilly all over the place.
Formerly known as Blaze1

hemichromis
21
Joined: Tue Nov 17, 2015 2:00 pm

Re: Mercedes Power Unit

Post by hemichromis » Fri Feb 05, 2016 7:20 pm

So Mercedes have a bigger turbo......

ringo
227
User avatar
Joined: Sun Mar 29, 2009 9:57 am

Re: Mercedes Power Unit

Post by ringo » Fri Feb 05, 2016 7:21 pm

The turbo is even bigger, suggesting heavy dependence on mguh spooling.
For Sure!!

SectorOne
392
User avatar
Joined: Sun May 26, 2013 8:51 am

Re: Mercedes Power Unit

Post by SectorOne » Fri Feb 05, 2016 7:28 pm

LookBackTime wrote:"Software wise, when the car is on track, the systems now analyse the lap before to look for improvements in deployment and estimates the best locations for increased or reduced deployment, based on lap time gain."
Now this i find interesting.
"If the only thing keeping a person decent is the expectation of divine reward, then brother that person is a piece of sh*t"

godlameroso
354
User avatar
Joined: Sat Jan 16, 2010 8:27 pm
Location: Miami FL

Re: Mercedes Power Unit

Post by godlameroso » Fri Feb 05, 2016 7:32 pm

ringo wrote:The turbo is even bigger, suggesting heavy dependence on mguh spooling.
What part of the turbo? Compressor, turbine, both? Also is it more efficient to use MGU-H to simply kick start the turbine spooling or deploying continuously until the engine is at around 8k rpm, when the MGU-H goes into generator mode to limit boost pressure?
The height of cultivation is really nothing special. It is merely simplicity; the ability to express the utmost with the minimum. Mr.Lee

LookBackTime
622
Joined: Tue Feb 19, 2013 7:33 pm

Re: Mercedes Power Unit

Post by LookBackTime » Fri Feb 05, 2016 7:34 pm

"Compressor, turbine, both?"

My guess is both (because of increase in power of the whole PU).

ringo
227
User avatar
Joined: Sun Mar 29, 2009 9:57 am

Re: Mercedes Power Unit

Post by ringo » Fri Feb 05, 2016 8:27 pm

godlameroso wrote:
ringo wrote:The turbo is even bigger, suggesting heavy dependence on mguh spooling.
What part of the turbo? Compressor, turbine, both? Also is it more efficient to use MGU-H to simply kick start the turbine spooling or deploying continuously until the engine is at around 8k rpm, when the MGU-H goes into generator mode to limit boost pressure?
I think the boost pressure/turbine speed limits come in above 10,500 rpm, where the fuel injection limit of 100kg/hr flattens. There is less demand for boost pressure at higher engine speeds, the turbines power will be best spent going to the MGUH. If you notice the engines rev to over 12k sometimes. I think this is where generator mode dominates.

I think both turbine and compressor are increased in size, also the MGUH located mid-shaft. Increasing size improves efficiency, reduces temperatures, and also capacity. The drawback is packaging and wieght, but who knows if mercedes have some kind of super lightweight turbo structure?
For Sure!!

LookBackTime
622
Joined: Tue Feb 19, 2013 7:33 pm

Re: Mercedes Power Unit

Post by LookBackTime » Fri Feb 05, 2016 9:05 pm

"The turbos on the 2016 cars are even larger than in 2014 when the new rules came in."

That suggest Mercedes are able to harness more electricity from MGUH. This addtional energy is used on the fly (not used to recharge the battery) by MGUK.

allstaruk08
2
Joined: Wed Jan 21, 2009 7:47 pm

Re: Mercedes Power Unit

Post by allstaruk08 » Fri Feb 05, 2016 10:14 pm

"Software wise, when the car is on track, the systems now analyse the lap before to look for improvements in deployment and estimates the best locations for increased or reduced deployment, based on lap time gain"

is the car telling the driver when and where on track to deploy the extra power? kind of cutting out the driver to pit talking radio ban?

LookBackTime
622
Joined: Tue Feb 19, 2013 7:33 pm

Re: Mercedes Power Unit

Post by LookBackTime » Fri Feb 05, 2016 10:34 pm

allstaruk08 wrote:"Software wise, when the car is on track, the systems now analyse the lap before to look for improvements in deployment and estimates the best locations for increased or reduced deployment, based on lap time gain"

is the car telling the driver when and where on track to deploy the extra power? kind of cutting out the driver to pit talking radio ban?
For every tack the Mercedes engine comes with a prepared maping setup.

The software is using this mapping as start up and using feedback from sensors will dynamically improving the maping of the engine on the fly.

More details about engine mapings :

http://www.jamesallenonf1.com/2011/06/f ... -answered/

RicME85
61
Joined: Thu Feb 09, 2012 12:11 pm
Location: Derby

Re: Mercedes Power Unit

Post by RicME85 » Fri Feb 05, 2016 11:48 pm

allstaruk08 wrote:"Software wise, when the car is on track, the systems now analyse the lap before to look for improvements in deployment and estimates the best locations for increased or reduced deployment, based on lap time gain"

is the car telling the driver when and where on track to deploy the extra power? kind of cutting out the driver to pit talking radio ban?
Drivers don't deploy ERS like pre-2014

ME4ME
162
User avatar
Joined: Fri Dec 19, 2014 3:37 pm

Re: Mercedes Power Unit

Post by ME4ME » Fri Feb 05, 2016 11:53 pm

Additional info on motorsport.com
http://www.motorsport.com/f1/news/merce ... 16-671911/
"We've made some huge gains in the last years as we have done the development," he explained during a briefing with media at Mercedes' Brixworth facility on Friday.

"We have good gains over the past two years of racing. I don't see that stopping. I don't think anybody here sees that we have reached the limit.

"Where we are at today with our thermal efficiency is mind blowing when you step back and look at it."

Facts Only
270
Joined: Thu Jul 03, 2014 9:25 am

Re: Mercedes Power Unit

Post by Facts Only » Sat Feb 06, 2016 9:21 am

Blaze1 wrote:I love the compactness and neatness of the Mercedes design. You don't see wiring looms, cables and piping snaking willy nilly all over the place.
That's because its all taken off to make it look nice for the press pictures.
"A pretentious quote taken out of context to make me look deep" - Some old racing driver