A hydro-viscous dynamometer system for zero-speed loading test of hydraulic torque converters was introduced.To meet the command of the performance test of hydraulic torque converters,in particular of the test of torque converters'zero-speed working condition,a hydro-viscous dynamometer for zero-speed loading test system was designed,with application of the hydro-viscous driver(HVD)technology.The system is composed of power and control subsystem,hydro-viscous dynamometer and assistant subsystem,measuring and control subsystem.To get the loading torque control of the viscous dynamometer, the electro-hydraulic proportional control technology was applied.To realize the acquisition and processing of the test data,the ideology of virtual instrumentation was adopted.A wide application prospect of the viscous zero-speed loading test system was introduced.%介绍一种可以实现液力变矩器零速加载的试验系统.为完成液力变矩器的性能试验,特别是液力变矩器零速工况试验,应用液体黏性传动技术设计了液黏零速加载试验系统.试验系统由动力及其控制系统、液黏测功加载及其辅助系统和测控系统组成.试验系统利用电液比例控制技术实现液黏测功机加载转矩控制,应用虚拟仪器思想实现试验数据采集与处理.液黏零速加载试验系统具有广阔的应用前景.
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