In an interview with Auto Motor und Sport, FIA Technical Director Nicholas Tombasis spoke about the difficulties of controlling the parameters of modern power plants and the reasons for the prohibition of the “qualification” regime …
Nicholas Tombasis: “Unfortunately, it has become much more difficult to control the operation of power plants than in the days of V8 engines, when it was enough to check the maximum power, dimensions and fuel composition. The problem with today’s power plants is that the equipment can be fully compliant, but it can be irregular when used.
To prevent this, it was necessary to constantly monitor many parameters and sensors on each lap using sophisticated software. And if the driver changed the parameters of the power plant on each lap, the task became more complicated. It was difficult to ensure that all the restrictions of the regulations are respected at all times, including at key moments of the race – on the circle before the pit stop, after it or when overtaking.
We have limited oil consumption to 0.3 liters per 100 km to prevent it from being used in the combustion process. We measured the flow rate not over the entire distance, but after each lap. It was forbidden to exceed it on some short segment, and then save. But with a constant change in engine operating modes, it turned out to be more difficult to track oil consumption, which was one of the reasons for the issuance of a technical directive prohibiting changing modes.
Yes, without the Power Mode, overtaking will be a little harder, but riders will still be able to harness the full power of the hybrid system.
We are thinking about how to provide riders with more short-term power in 2022. But if you rely solely on engine power when overtaking, then the difference in power should be very large. Much more than the drivers lost after the ban on the qualifying regime.
We are also thinking about the new regulations for power plants, which will come into force in 2026. I would like to get better control over the parameters of their work, to ensure even greater environmental friendliness and efficiency. “