EXPERIMENTAL STUDY OF A NEW ROLLER STAND DESIGN FOR VEHICLE BRAKE DIAGNOSTICS

This article presents the results of experimental research aimed at improving diagnostic methods for braking systems in heavy-duty trucks. The relevance of the topic lies in the fact that most current diagnostic procedures are carried out under conditions far from those encountered in real-world operation-specifically, without load, although trucks rarely operate in an unloaded state. Under such testing conditions, evaluating braking efficiency based on specific braking force often proves inaccurate, which may lead to false conclusions regarding the technical condition of the vehicle and pose risks to road safety. To address this issue, a new design of a roller test stand was developed. The stand simulates actual axle loads through the use of electric winches and a pressure system. The conducted experiments demonstrated that the application of additional load significantly increases the reliability of measurements, reduces data scatter, and provides a more objective assessment of the braking system’s condition. The findings suggest that this method should be integrated into regular vehicle inspection procedures. The proposed development can be employed in modernizing diagnostic equipment and updating regulatory frameworks, ultimately contributing to improved accuracy in brake performance evaluation and higher levels of transport safety. Keywords: brake system diagnostics, heavy-duty vehicles, roller test stand, experimental research, vehicle safety.