Variability of data when testing the Handbrake Parking System vs the Electronic Park Brake with three Maha testers at Ministry of Transport facilities

This research is focused on the test of the Electronic Parking Brake (EPB) and the hand brake at several Ministry of Transport (MOT) facilities to see if there are differences between data obtained. The parking brake force have been measured on three different brands of roller bed testers from MOT facilities such as: Maha, Ryme and Vteq. The rejection threshold is the same for all testers, 16% Efficiency. Efficiency measured with all testers used were compared and also the MOT brake tester characteristics were com-pared to study correlations.