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Residual life prediction of three-way catalytic converter by using non-equidistance grey forecasting model
Author(s): MAO Li1, 2, ZUO Qing-song1, LIU Guan-lin1, GONG Jin-ke1
Pages: 1351-
1354
Year: 2012
Issue:
4
Journal: Journal of Central South University
Keyword: 车用三效催化转化器; 剩余寿命; 非等间隔灰色预测模型;
Abstract: 为了有效预测车用三效催化转化器的剩余寿命,在进行快速老化试验后,采用氮吸附法测定三效催化转化器比表面积,并在其实验比表面积减小率的基础上采用非等间隔灰色预测模型对车用三效催化转化器剩余寿命进行预测,并对其预测结果的残差进行后验差检验。研究结果表明:在进行快速老化试验204 min后,比表面积减小6.42%,即车用三效催化转化器耐久性寿命至少还有12万km;后验差比值C<0.35,小误差概率P>0.95,表明车用三效催化转化器剩余寿命的非等间隔灰色预测模型预测结果具有较高的精度。
Citations
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