Calculate Mean Fully Developed Deceleration (MFDD) using ASI Datalab
Mean Fully Developed Deceleration (MFDD)
It is defined as the maximum deceleration a vehicle can achieve. Normally the deceleration between 80% and 10% of the trigger test speed.
From the test speed, the module scans the data for the last point closest to test speed.
MFDD is calculated using the formula:
From the scanned test speed, other parameters vb, ve, Se and Sb are calculated. If vo is the initial test speed, then
vb = speed at 0.8vo
ve = speed at 0.1vo
Se = distance travelled between vo and ve in meters
Sb = distance travelled between vo and vb in meters
To calculate MFDD in ASI Datalab following input required.
- Test Speed (kmph)- Enter the speed from where breaking started.
Input signal must consist only the part where the braking happens.
The module accepts units kmph, KPH and km/hr.