汽车制动系统热衰退现象的机理分析与改进措施  

Mechanism Analysis and Improvement Measures of Thermal Decline in Automtive Braking System

作　　者：吴泉成[1] Wu Quancheng(School of Intelligent manufacturing,Nanchong vocational and technical college,Nanchong 637131,China)

机构地区：[1]南充职业技术学院智能制造学院,四川南充637131

出　　处：《专用汽车》2025年第4期49-51,55,共4页Special Purpose Vehicle

摘　　要：为了探讨汽车制动系统中的热衰退现象及其改进措施,分析了摩擦材料、液压系统及结构件在高温条件下的性能变化。结果表明,碳陶瓷制动盘在20次制动后温度控制为420℃,摩擦因数下降8%,制动距离增长12%,明显优于传统灰铸铁制动盘,其温度在相同条件下达到630℃,摩擦因数下降28%,制动距离增长35%。材料优化、结构调整及制造工艺改进可显著提高制动系统的热稳定性和安全性,为制动性能提升提供了有效路径。In order to explore the phenomenon of thermal degradation in automotive braking systems and its improvement measures,the performance changes of friction materials,hydraulic systems,and structural components under high temperature conditions were analyzed.The results showed that after 20 braking cycles,the temperature of the carbon ceramic brake disc was controlled at 420℃,the friction coefficient decreased by 8%,and the braking distance increased by 12%,which was significantly better than the traditional gray cast iron brake disc.Its temperature reached 630℃under the same conditions,the friction coefficient decreased by 28%,and the braking distance increased by 35%.Material optimization,structural adjustment,and manufacturing process improvement can significantly enhance the thermal stability and safety of the braking system,providing an effective path for improving braking performance.

关 键 词：汽车制动系统 热衰退 摩擦材料 

分 类 号：U463.5[机械工程—车辆工程]