滑动螺旋副传动式驻车卡钳结构对制动系统的影响研究

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摘要:基于集成机械式驻车功能卡钳原理,对滑动螺旋副传动式驻车卡钳(IPB)的液压制动过程进行了描述,建立了简化的数学模型,分析了滑动螺旋副传动式驻车卡钳对制动系统的影响。

关键词:滑动螺旋副;制动力分配;驻车卡钳;同步附着系数

中图分类号:U463.5      收稿日期:2025-03-10      DOI:1019999/jcnki1004-0226202504027

Research on the Influence of Sliding Screw Pair Transmission Parking Caliper Structure on Braking System

Li Yundong

Bethel Automotive Safety Systems Co.,Ltd.,Wuhu 241009,China

Abstract:Based on the understanding of the principle of the parking function caliper in integrated machinery, the hydraulic brake active process of the sliding screw pair transmission type parking caliper (IPB-integrated parking brake caliper) was described, a simplified mathematical model was established, and the influence of the sliding screw pair transmission type parking caliper on the braking system was analyzed.

Key words:Sliding screw pair;Braking force distribution;Parking caliper;Synchronizing adhesion coefficient

1 符号说明

为方便描述滑动螺旋副传动式驻车卡钳液压驻车制动卡钳动作过程,对相关的变量及符号进行说明:Fo为活塞端输出的力,N;Fpistons为活塞滑动阻力;Ppistons为克服活塞滑动阻力所需的液压;Fcaliper为钳体滑动阻力;Pcalipers为克服钳体滑动阻力所需的液压;Finpads为内制动块滑动阻力;Pinpads为克服内制动块滑动阻力所需的液压;Foutpads为外制动块滑动阻力;Poutpads为克服外制动块滑动阻力所需的液压;Ps为高压保护功能启动液压,MPa;Pn为内制动块与制动盘刚好接触时的液压,MPa;Fs为高压保护弹簧的初始装配预紧力,N;Ks为高压保护弹簧的弹性模量,N/mm;Ac为活塞最大截面积(缸径38 mm),mm2;An为活塞前端与螺杆配合孔的截面面积(孔直径10 mm),mm2;P为钳体腔内实时液压,MPa。(剩余3998字)

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