Brembo, global leader in braking systems, is the sole supplier of the entire standard braking system of the FIA Formula E through constructor Spark Racing Technology. The group’s race engineers have analyzed the Circuit International Automobile Moulay El Hassan in Marrakesh, where the 24 drivers will race on Saturday, February 29th, to determine the most challenging sections for the brakes.
Braking in Marrakesh can be extreme. The circuit is one of the longest of the season, almost 3 km, it has extended straights and multiple tight corners where the brakes are put under severe stress. The Moulay El Hassan circuit builds up the pressure on the brakes corner by corner, with around 27 percent of the racing time in a lap spent braking. The most critical brake point is just before Turn 7, a highly demanding section to manage. To slow down the car, Brembo brakes need to generate a power almost four-times the one delivered by the power unit. Speed needs to go down of more than 100 km/h in around 100 meters and in less than 3 seconds before entering the left-hander.
There’s more, the remaining corners are all medium-high level difficulty and thus they keep the brakes under relentless pressure. At the end of a lap, the amount of energy involved in the process of braking is more than 2.5 percent of the battery’s capacity. Only a small amount of this energy can be regenerated on the rear axle, the majority of it is dissipated through heat.