Simulation of an Electro hydraulic Brake System with Integrated Master Cylinder

Abstract:

To recover more braking energy and improve braking performance of vehicles, a new electro hydraulic braking system based on integrated master cylinder is developed. According to performance requirements and national standards, key components’ parameters are determined. The software AMESim is used to build hydraulic subsystem’s model in accordance with its constructer and working principles. Vehicle model and system control logic are built on Simulink. The system control logic consists of braking force distribution logic, wheel cylinder pressure precise control method and coordination control strategy for regenerative braking system and anti lock braking system. Eventually, the new system’s necessary functions are verified by simulation results, reflecting the system’s good feasibility.

Key words:integrated master cylinder; electro hydraulic brake system; system control logic