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SPORT NEWS – INSIGHT: How will Mercedes be affected by F1’s new PU mode guidelines?

INSIGHT: How will Mercedes be affected by F1’s new PU mode guidelines?


Mercedes has defined the totally different energy unit modes it makes use of in System 1 and the way the brand new technical directive will influence the group on the Italian Grand Prix.

From this weekend’s race at Monza, all groups must run the identical energy unit mode from the beginning of qualifying till the top of the race as a result of the realm falls underneath parc ferme rules. Mercedes usually makes a serious step ahead throughout qualifying with its energy unit modes in Q2 and Q3, with a lot of the main target being on how the change may influence the defending champions’ benefit on the entrance.

Mercedes Excessive Efficiency Powertrains managing director Hywel Thomas explains how the facility unit modes differ from one another, and what the group may often change throughout a race weekend.

“An engine mode is a set of management parameters which management precisely how the engine and {the electrical} system work,” Thomas mentioned. “We usually break up the load into two: there’s the ICE (inside combustion engine) combustion parameters, and there’s the ERS electrical parameters.

“Within the combustion engine we’re altering issues like the quantity of air that goes in, the quantity of gas that goes in, maybe after we spark the engine to make the combustion occur, and we’re altering all these issues to get totally different energy outputs, totally different vitality degree outputs and we’re altering that by the race weekend to maximise the lap time on the proper time.

“On the ERS facet, the complication is you can not deploy your MGU-Okay for the complete lap each lap. You’ll be able to’t do this with out working down the battery. So we now have three typical settings. One is impartial, so we deploy the identical quantity of vitality as we get well, and meaning you may run that lap after lap after lap.

“However, in the event you’re wishing to assault someone, you may select to deploy extra MGU-Okay by extra of the straights, however what that does imply is that your battery energy will come down. In the event you’ve carried out that for a few laps, you’ll be attending to the underside of the pack and it is advisable cut back much more the MGU-Okay from the impartial lap, and cost the battery again up. So it’s very tactical, while you use these totally different ERS modes, and the motive force will select these by selecting one of many totally different ‘Strat’ switches.”

Mercedes’ ‘Strat 2’ PU mode – aka ‘Get together Mode’ – has been an efficient qualifying weapon throughout the present engine method. How will the sport change when groups are compelled to make use of a single mode by qualifying and the race? Sutton/Motorsport Photos

The strongest Mercedes mode is named ‘Strat Two’ and often utilized in qualifying, however Thomas explains why it’s not attainable to make use of that all through a race.

“Everytime you discuss modes, what folks ask about is ‘Get together Mode’ and what’s ‘Get together Mode’ and does it exist? For us, ‘Get together Mode’ is Strat Two, and has been because the begin of the hybrid period in 2014. What does Strat Two actually imply? It’s actually fairly simple. It’s technique place two on the steering wheel, and that’s the place the motive force goes for these actually necessary laps in qualifying, perhaps simply by these two laps in Q3 after they’re making an attempt to get pole place.

“And what does Strat Two do? Properly in the event you return and take into consideration what we’ve talked about, it’s about all these management parameters and turning these as much as absolutely the max in order that the engine is screaming, the engineers are wincing, and likewise {the electrical} vitality goes from the complete pack to the underside of the pack – the entire cost we’ve acquired within the electrical vitality all in that one lap. We’re simply giving it the whole lot we’ve acquired to present us one of the best probability of getting on pole.

“As of this weekend, there’s a brand new technical directive – technical directive 37 – and what that claims is which you could solely use a single mode from the beginning of qualifying to the top of the race. So we’d use at present two or three modes throughout that point, from the best crankshaft mode that we’ve acquired to a medium mode, and what we’re now saying is it must be all the identical mode. In order that absolute ‘Get together Mode’ will most likely disappear, however perhaps we’ll have the ability to do some bit extra throughout the race. Simply so long as it’s the identical all over: that’s what the TD says.”

Regardless of the concentrate on the brand new technical directive, Thomas says there’ll nonetheless be instruments out there to drivers to vary the facility unit efficiency throughout a race, however he does envisage some motion within the aggressive order on each Saturday and Sunday.

“What’s the influence on us going to be? We don’t know but,” he admits. “I think about some energy unit producers may discover that they’re going ahead comparatively to the others in qualifying, however perhaps will probably be another person that features somewhat bit greater than the others within the race. I assume we’ll discover out in a few days on the finish of the Monza weekend.

“The drivers will nonetheless be making swap adjustments, they’ll nonetheless be doing that in an effort to handle the vitality within the pack in the best way that we’ve described beforehand after they may wish to assault or they is likely to be wishing to cost the pack to permit them to assault later. So that they’re nonetheless going to be doing these types of swap adjustments. What has modified barely is that the format of what methods are on totally different switches. So there’s going to be numerous work between the engineers and the drivers to make it possible for they perceive what these adjustments are to make it possible for they will optimize their races.”

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SPORT NEWS – INSIGHT: How will Mercedes be affected by F1’s new PU mode guidelines?
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