Abstract
The automotive roller brake testers are now very common to see in workshops and service units, for automobile safety testing procedures. Traffic safety on public and private roads depends very much on the technical condition and operation of vehicle brake and steering. That is why these systems are always considered vital for a well traffic operation. The present paper shows the possibility of studying the vehicle brake system behavior and in the same time the analyze of systems operating parameters on the roller brake tester and diagnosis system of Mechanical Engineering Faculty from Technical University of Cluj-Napoca. The roller brake tester allows the user to determine both the braking force of the wheels and the rolling resistance of the tires, while the diagnosis system shows the operating parameters of the engine and the auxiliary equipments. Their modern design and friendly user interface makes it possible to be easy used by students and researchers as well in all academic and scientific purposes. It will be interesting to study how the engine performance change with the variation of external parameters as rolling resistance and brake force. These factors influence the engine power, economic and ecologic performances.
Keywords: brake system, roller brake tester, traffic safety, vehicle wheels, diagnosis.