基于模型参考控制的汽车试验台动态加载  

Dynamic Loading of Vehicle Testing Bed Based on Model Reference Control

作　　者：莫志勇[1,2] 张为公[1] 吉同舟[2] 

机构地区：[1]东南大学,南京210096 [2]南京师范大学,南京210042

出　　处：《中国机械工程》2010年第7期877-881,共5页China Mechanical Engineering

摘　　要：动态加载是汽车测试装置中的重要环节,为了克服传统加载方法中转矩控制困难的问题,提出了直接转矩控制技术。由于不同车型的加载参数不同,因此采用模型参考控制方法解决了模型的适应性问题;采用了专家PID设计加载控制器进一步减小动态误差。建立了仿真实验模型,运行结果表明:补偿转矩能够根据动态加载的要求进行快速调整;稳态运行速度误差小于1%,动态误差远远小于传统PID控制。通过对比研究显示,电模拟动态加载满足汽车测试的要求,其综合性能优于传统的静态加载。Dynamic loading is an important technology of vehicle testing device. In order to overcome the difficulty of torque control in traditional loading method, DTC was adopted. Model parameters varied greatly according to different types of vehicle,so model reference control was taken to im- prove the model＇s adaptability. Aimed at reducing dynamic errors further, an expert PID control was selected to design the torque controller. A simulation model was set up. Simulation outcome shows that compensating torque can be rapidly regulated according to demands of dynamic loading. Stable- state error is less than one percent, and dynamic error is much more less than that of traditional PID. In the end,a conclusion is drawn from comparison study that dynamic loading with electrical simulation proposed meets the demands of vehicle testing, and its synthetic performance is superior to traditional static loading.

关 键 词：动态加载 直接转矩控制 模型参考控制 专家PID 

分 类 号：TP276[自动化与计算机技术—检测技术与自动化装置]