关键词: 差速器轴承, 预紧, 启动摩擦力矩, 模糊控制算法, 比例-积分-微分控制算法

Abstract: Through the analysis of differential bearing assembly in automobile transmission, an intelligent control method of preloading differential bearing and measuring bearing start friction moment on line based on fuzzy and Proportion Integration Differentiation(PID) combined control was presented, and the automatic equipment which realized the measuring and preloading of differential bearing was developed successfully. When the system did the automated assembly for differential bearing, it had the function of measuring the preloading torque and start friction moment on line automatically, thus the suitable preloading of differential bearing was obtained. Through the actual production process, a kind of questions for preloading differential bearing and measuring bearing start friction moment on line were successfully resolved by this system. The quality and efficiency of production was improved by system's high prediction accuracy.

Key words: differential bearing, preloading, start friction moment, fuzzy control algorithm, proportion integration differentiation control algorithm