模糊控制在搅拌筒恒速控制中的应用

混凝土搅拌运输车搅拌筒的转速直接影响混凝土的质量,如何建立搅拌筒恒速控制系统的数学模型是恒速控制的难点.由于受液压油温的影响,搅拌筒恒速控制模型参数会实时变化,为非线性时变系统.提出基于模糊控制方法来实现混凝土运输车搅拌筒的恒速控制并进行实车测试,测试结果表明,搅拌筒空载时的控制效果理想.

Application of Fuzzy Control to Constant Speed Control of Mixing Drums

The rotate speed of concrete mixing truck has direct effect on the concrete quality. The difficulty in constant speed control lies in how to set up the mathematical model for the constant speed control of mixing drums. Influenced by the temperature of hydraulic oil, the parameter of the model will vary with time to be a non- linear time variation system. The text puts forth that the fuzzy control should be applied to realize the constant speed control of the mixing drum for concrete mixing truck while the real truck test has been carried out. It’s been testified that it is more effective with no-load mixing drum.