Human Factors in Braking and Fade Phenomena for Heavy Application : Problems to Improve Brake Performance

抄録

Ability of human being as an operator of braking mechanisms was investigated. Effect of posture on foot and manual force, delay and transient in handling brake pedals or sticks, and experimental formulae for these were discussed. For service brakes, 20kg for passenger cars, 30 kg for commercial vehicles may be desirable. It will take less than 1.2 and 1.4 sec for 80% of males and females respectively from stimulus to full application. Posture of passengers and transient of application has prominent effect on riding comfort at braking. Using actuating mechanism developed for this test, fade phenomena during braking on the road and at the dynamometer were observed. Effect of lining characteristics, shoe type, and thermal condition of brake mechanism were calculated using analogue computors.