From an interview with Remi Taffin (Renault PU chief engineer).
If you say the easiest thing to do is to take the current race mode: But now there is not only a qualifying and a race mode. There are many modes for the race alone ...
Remi Taffin: Yes, there are. But the FIA is very clear about what they want from us now. It is a single mode. Whatever the number looked like before: There will only be one now.
How many were there before just for the race?
Remi Taffin: It is a combination, because it is a matrix. You can change more than just one parameter. If you say you have four or five possibilities with one parameter, then you might end up with 20 modes. That's the point the FIA made: they have problems monitoring things because there are so many variables that they asked us to help them. That's fair and that's what we try to do. We as Renault are trying to help the FIA monitor that. We want fairness for everyone.
Is it not difficult to draw a line? What is combustion engine, what is not? Turbocharger and MGU-H influence each other ...
Remi Taffin: What is clear is the turbocharger. It is part of the combustion engine. The MGU-H is at its limit. You are right, the MGU-H has consequences for the turbocharger. But this problem cannot be solved. There are parameters that have an influence on the combustion engine. There will always be a connection between the combustion engine and the energy recovery systems. The MGU-H is also there to regulate the boost pressure and to recuperate energy at the same time. We have to come back to what the FIA is trying to do: Minimize the variables they have to look at. They certainly won't freeze everything in one day, but they limit what they have to look at.
In addition to the emergency mode, there should still be an overrun button. Which parameters may it influence? Is it only about the electrical energy flow or also about the combustion engine?
Remi Taffin: It's mainly about the electrical energy. But as a side effect, the
FIA has given us the option of using the waste gate valve. If you activate the overtaking mode, you get rid of any K-clipping (suspension of the MGU-K) you might have and at the same time it might allow you to have a different opening position of the wastegate valves to use more energy.
How long and how often can I use the button?
Remi Taffin: There is no limit.
Can't you transfer your qualifying advantage to the race?
Remi Taffin: You will take a part of it with you. But you can't go from one day to the other 60 laps of qualifying if you could only do three or four laps in qualifying before. We know how it works. I'm pretty sure that - if Mercedes had a qualifying mode that they can't use now - they will work very hard to use it in qualifying and in the race.
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