FormulaE is introducing an emergency braking system on the rear of each car from this weekend's DiriyahEPrix. Here's how it works and why it has been been brought in:
The Gen3 car was launched without a conventional rear braking system, as the regeneration at the rear axle offered enough stopping power to slow the cars down for each corner.
Jaguar Formula E sporting director Gary Ekerold explained the operation and the logistics in introducing the system. "It is fundamentally a one-use system in the sense that the assumption is that your powertrain has failed by the time you need to activate it, so you're effectively out of the race anyway," he said.
Although it could be perceived as a harsh punishment, the emergency brakes are considered a safety device like a halo. The race in Mexico showed that teams could run a full race distance without encountering any issues with stopping the car, and that adding the emergency system onto the car is purely a"belt and braces" measure.
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