According to AMUS this is the list of engine parameters that the FIA want to not change between quali and race
Gasoline flow rate
Combustion phase setting
Pressure in pneumatic valve system, crankcase
Wastegate valve timing and MGU-H working time
Control of the power measured at the output shaft
As ever with regulation changes I think this provides an opportunity to explore how the PUs might operate.
The first few are, I think, fairly obvious but:
Do they really vary the pressure in the valve system? Reduce it to reduce valve train losses? Run closer to losing control of the valves?
Does the control of wastegate and MGU-H control the the use of e-boost to be time limited, or perhaps that the parameters that control their operation don’t change? I thought that the choice of timing and duration fell under ERS Strategy rather than PU Control.
The last item I think suffers in translation, not mine sadly, I think Kontrolle refers to measurement rather than management. But I can’t see how that might be a parameter under the teams control.
Here’s the German, in case the translations above are misleading.
Druck im pneumastischen Ventilsystem, Kurbelgehäuse
Wastegateventil-Timing und MGU-H-Arbeitszeit
Kontrolle der an der Ausgangwelle gemessenen Leistung
Fortune favours the prepared; she has no favourites and takes no sides.
Truth is confirmed by inspection and delay; falsehood by haste and uncertainty : Tacitus