This New Sensor is How F1 Plans to Stop Teams Cheating in 2020
Arthur T Knackerbracket has found the following story:
One of the big stories in F1 during the latter half of the 2019 season concerned exactly what Scuderia Ferrari was doing to get so much power out of its engine. Its cars were undoubtedly the fastest in a straight line for much of the year, although a "technical clarification" issued in November by the FIA-the sport's governing body-coincided with a drop off in the Italian team's speed.
Things got a little more interesting in February of this year, when the FIA announced that it had reached an agreement with Ferrari following an investigation into the matter. The announcement was more than a little cryptic, and part of the agreement with the team was a condition that while Ferrari wouldn't do it again, exactly what "it" was will remain a secret. The 2020 F1 season is on hold thanks to the coronavirus, but if the cars do get back on track this year, they'll do so with a new sensor that's designed to prevent a possible repeat of last year's shenanigans.
There were two main theories about what the Scuderia was up to. The less imaginative one involves the engine's intercooler, which reduces the temperature of the air after it has been compressed by the turbocharger. [...]
The other theory is far more ingenious. Perhaps Ferrari was somehow manipulating or interfering with the fuel flow sensor, an ultrasonic device that samples fuel flow at 2,200Hz. This theory was given some credence when in November, rival team Red Bull Racing asked the FIA, hypothetically, whether it would be allowed to use the fuel pump to vary the fuel rate, such that it was below the 100kg/hr limit during each sampling event but above it during the gaps in between. In F1, if you suspect another team is cheating, you often ask the FIA whether it would let you do whatever it is you think that other team is doing, hoping for a response in the form of a technical clarification that says "no, doing X is not allowed," and in this case, the FIA did exactly that.
A couple bits of evidence pointed to this indeed being Ferrari's advantage. For one, its cars definitely appeared to lose some straight line performance from this point in the season on. And for another, it would explain how one of its cars was found to be carrying too much fuel at the end of the Abu Dhabi Grand Prix. Not a lot-just 4.88kg-but enough to explain the roughly 5-percent power advantage that the Ferrari engine appeared to generate. (For an explanation on why you'd want to run with more fuel than you declare when that means a weight penalty, I recommend Mark Hughes' explanation over at MotorSport.)
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