For vehicle-level testing, brake performance is a
measurement of stopping distance or deceleration as a
function of brake pedal force or air pressure when
applicable. The test can measure the stopping distance
or deceleration for a given brake pedal force or air
pressure, or the brake pedal force or pressure required
to attain a certain stopping distance or deceleration. For
inertia-dynamometer testing, brake output torque or
deceleration replaces stopping distance, and brake
pressure replaces brake pedal force. Using the
appropriate modeling for a given vehicle application,
these values can be converted with good accuracy from
vehicle-level to inertia-dynamometer or vice versa. Other