What’s brake efficiency?
A. The ability of the brakes to perform their function is popularly known as braking efficiency and in most countries; legally enforceable regulations require that all road vehicles have an efficient braking system. In assessing braking efficiency, it is usual to consider the effect which the brakes achieve when they are applied. Brake efficiency is the action of applying the brakes which sets up a force effective at the road surface, this acts in the opposite direction to the motion of the vehicle and causes it to slow down or decelerate. Deceleration is normally compared to a standard value (the acceleration due to gravity g) and reported as a percentage of “g”.
