真空助力器对轿车制动性能影响的分析  

Analysis on Influence of Vacuum Boosters for Braking Performance of Passenger Cars

作　　者：张振鼎[1] 刘彦君 谢东明[1] 

机构地区：[1]中国汽车技术研究中心 [2]北京现代汽车有限公司

出　　处：《汽车工程师》2017年第4期43-46,共4页Automotive Engineer

摘　　要：为了分析真空助力器对轿车制动管路压力、整车制动距离及整车充分发出的平均制动减速度等性能的影响,该文通过采用压力传感器、踏板力计及道路试验系统等试验设备对选取的13辆轿车进行了真空助力器正常工作与失效时的制动对比试验。分析结果表明真空助力器正常工作尤其是当制动踏板力较小时,可大幅提升制动管路压力,提高制动减速度,缩短制动距离,提升轿车制动性能。为后续轿车制动性能的设计提供了分析依据。This paper introduces 13 models of passenger car comparing test with and without vacuum booster working in order to analyze the influence of brake vacuum booster issued for brake pipe pressure, braking distance and MFDD of complete vehicles using pressure sensors, pedal force meters and road test system. The results show that the normal operation of the vacuum booster, especially when the brake pedal force is small, can greatly improve the brake pipe pressure and MFDD, shorten the braking distance, improve the braking performance of the vehicle. It provides the basis for the design of passenger car braking performance.

关 键 词：轿车 真空助力器 制动管路压力 平均制动减速度 

分 类 号：U461.3[机械工程—车辆工程]