介绍了汽车传动轴八项功能测试的工作原理,即摆角测试、偏转角度矩测试、移动力测试、移动量测试、滚动矩测试、轴向间隙测试、圆周间隙测试、摆角间隙测试。从精确、可靠的角度出发,论述了测试台总体方案结构、控制系统的原理框图、软件系统的构成及其特点。 This paper introduces the working principle of eight functions test of automobile drive shaft, namely swing angle test, deflection angle moment test, moving force test, moving amount test, rolling moment test, axial clearance test, circumferential clearance test and swing angle clearance test. From the perspective of accuracy and reliability, this paper discusses the overall structure of the test bench, the block diagram of the control system, the composition of the software system and its characteristics.