The goal for this research and development was to create a model via a systems approach that can accurately simulate the brake system dynamics during ABS-assisted braking. The component level model allows detailed study of the influence from individual component parameters on system performance. This paper introduces a new nonlinear model for simulating the dynamics of pneumatic-over-mechanical commercial vehicle braking systems. The model employs an effective systems approach to accurately reproduce forcing functions experienced at the hubs of heavy commercial vehicles under braking. The model, which includes an on-off type ABS controller, was developed to accurately simulate the steer, drive, and trailer axle drum (or disc) brakes on modern heavy commercial vehicles. This model includes parameters for the pneumatic brake control and operating systems, a 4s/4m (four sensor, four modulator) ABS controller for the tractor, and a 2s/2m ABS controller for the trailer. The dynamics of the pneumatic control (treadle system) are also modeled. Finally, simulation results are compared to experimental data for a variety of conditions.
New model for simulating the dynamics of pneumatic heavy truck brakes with integrated anti-lock control
2003
20 Seiten, 34 Bilder, 1 Tabelle, 13 Quellen
Aufsatz (Konferenz)
Englisch
British Library Conference Proceedings | 2003
|SAE Technical Papers | 2003
|Centralized electro-pneumatic control system for truck air brakes
Tema Archiv | 1985
|Centralized Electro-Pneumatic Control System for Truck Air Brakes
SAE Technical Papers | 1985
|