Simulation and HIL Test for Proportional Relay Valve of Commercial Vehicle Pneumatic EBS

A simulation tool for proportional relay valve of commercial vehicle pneumatic EBS (Electronically controlled Braking System) has been developed using MATLAB/Simulink environment and validated by testing on hardware-in-the-loop test bench focused on its pressure hysteresis characteristic. The simulation and test results show that the simulation model for proportional relay valve characteristics is reasonable and reliable, and it can be used for hardware and control algorithm development of pneumatic EBS for commercial vehicles.