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基于CAN總線和PSA模型的AMT在線故障診斷系統(tǒng)
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    摘要:

    為解決電控自動變速器故障診斷和維修問題,建立了基于CAN總線和PSA(PCA-subtractive clustering-ANFIS)模型的自動變速器故障在線診斷系統(tǒng)。通過CAN總線實時采集變速器控制單元各傳感器狀態(tài)數(shù)據(jù)作為診斷樣本,利用主成分分析(PCA)實現(xiàn)輸入變量降維和去相關(guān),應(yīng)用減法聚類(subtractive clustering)方法生成初始模糊推理結(jié)構(gòu),并以此建立自適應(yīng)模糊神經(jīng)網(wǎng)絡(luò)(ANFIS)故障診斷模型。仿真結(jié)果表明,結(jié)合CAN總線網(wǎng)絡(luò)應(yīng)用的PSA故障診斷模型能夠準確地診斷出變速器的故障,其擬合能力及收斂速度均優(yōu)于PCA-B

    Abstract:

    P網(wǎng)絡(luò)模型。 For the sake of fault diagnosis and maintenance problems of automated manual transmission (AMT), an online fault diagnosis system was established based on CAN bus and PSA (PCA-subtractive clustering-ANFIS) model. The original sample data of AMT fault diagnosis was derived from sensors of electronic control utilities (ECU) and transmitted on CAN bus. Principal component analysis (PCA) was used to reduce correlations and dimensions of input variables. An original fuzzy inference model was built by using subtractive clustering algorithm, on which an adaptive-network-based fuzzy inference system (ANFIS) was based and adopted to build a new type fault diagnosis model. Experimental result showed that combined with CAN bus,PSA model is effective, and both of its fitting ability and convergence speed are superior to PCA-BP network model.

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劉應(yīng)吉,張?zhí)靷b,聞邦椿,曹萬科.基于CAN總線和PSA模型的AMT在線故障診斷系統(tǒng)[J].農(nóng)業(yè)機械學(xué)報,2008,39(6):132-136.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(6):132-136.

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