三效催化转化器智能故障诊断系统知识库设计

在分析三效催化转化器故障诊断知识特点的基础上，采用一些措施构建知识库，如采用神经网络方法对转化器工作状态参数进行处理，采用多层前馈神经网络模型和自组织神经网络模型获取知识，采用产生式规则形式和二元化产生式规则形式表达知识，设计量化模块和知识库模块转化知识，并采用多个神经网络来记忆知识。应用效果表明，三效催化转化器神经网络故障诊断专家系统的预报准确率较高，具有较大的实用性。

Design on knowledge base of intelligent diagnosis system of three way catalytic converters

On the basis of the analysis on the fault diagnosis characteristics of three-way catalytic converter (TWC) knowledge in the automobile,some measurements were used to establish a knowledge base,such as processing work state parameters of TWC in the automobile by using neural network method,acquiring knowledge by using multi-layer neural network model and self-organizing neural network model,expressing knowledge by using the form of production rules and binary production rules,changing knowledge by using quan...