全动力液压制动系统制动阀芯结构特性分析

制动阀作为双回路全动力液压制动系统的关键元件，两阀芯直径的尺寸配合直接影响到工程车辆的制动性能，因此阀芯直径尺寸大小是设计制动阀的关键。以双回路全动力液压制动系统中最常见的串联调节式液压制动阀为例，在掌握其工作原理的基础上。采用MATLAB／Simulink对全动力液压制动系统进行建模仿真。改变上、下阀芯直径大小得出了不同的制动力响应结果。并将其进行研究和对比；结合阀芯内力需求和前、后轮制动力分配要求，对双回路全动力液压制动系统中的制动阀进行结构特性分析。得出阀芯的设计特点为上回路直径大于下回路直径，制动阀阀芯结构设计特点分析为双回路全动力液压制动系统及制动阀提供了设计依据。

Analysis of Structure Characteristic on Full Power Hydraulic-brake System Brake Valve

Brake valve as an important component of double-loop full power hydraulic-brake system,whose two spool diameter's dimension fit directly impact on the vehicle braking performance,therefore,the spool size is key to the design of brake valve.Taking the tandem adjustable hydraulic brake valve used usually in the double-loop full power hydraulic-brake system as an example,on the basis of mastering the operational principle and using MATLAB/Simulink software,the modeling and simulation for the dynamic characteri...