Design and implementation of hardware-in-the-loop simulator for EHB systems

HILS (hardware-in-the-loop simulation) is a scheme that incorporates hardware components of primary concern in the numerical simulation environment. Due to its advantages over actual vehicle test and pure simulation, HILS is being widely accepted in automotive industries as test benches for vehicle control units. Developed in this study is a HILS system for EHB (electro-hydraulic brake) systems that includes a high pressure generator and an independent brake pressure control system. The EHB control logic was tested in the HILS system. Test results under various driving conditions are presented.