Re:The EV Transition Is Harder Than Anyone Thinks
by kube-system on Tuesday March 28, 2023 @11:02PM
(#35351762)
Have you ever overheated your brakes? I’ve managed to do it twice. It took a $25 dollar set of brake pads about 8 laps on a race track. It takes multiple repeated hard stops of >~50mph delta to overheat even crappy bargain basement brakes on an economy car.
Brake discs on modern cars are vented and work like a centrifugal fan to cool them actively. They continually shed heat, so even dragging a brake pedal the entire way down a long mountain, as many drivers will do, is well within safety margins. So to overheat them, you have to get the heat in fast. Like 0-100-0-100-0-100-0 fast.
On the road, the only vehicles that experience brake fade are loaded trucks descending a grade, or suspects in a police pursuit.
Brake discs on modern cars are vented and work like a centrifugal fan to cool them actively. They continually shed heat, so even dragging a brake pedal the entire way down a long mountain, as many drivers will do, is well within safety margins. So to overheat them, you have to get the heat in fast. Like 0-100-0-100-0-100-0 fast.
On the road, the only vehicles that experience brake fade are loaded trucks descending a grade, or suspects in a police pursuit.