基于一体式制动主缸的电液复合制动系统仿真

Simulation of an Electro hydraulic Brake System with Integrated Master Cylinder

摘要:

为了能更多地回收制动能量并改善汽车制动性，设计了一种新型的采用一体式制动主缸总成的电液复合制动系统，根据性能要求和国家标准确定系统中主要组成部件的参数。基于该系统的结构和工作原理，利用AMESim软件搭建系统液压部分的模型，并利用Simulink软件建立整车模型和系统控制逻辑，其中系统控制逻辑主要包括制动力分配逻辑、制动轮缸压力精确控制方法及再生制动系统与防抱死制动系统协调控制策略.最后以联合仿真的形式验证了该电液复合制动系统的必要功能，说明该系统具备良好的可实现性.

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.