本論文首先建立油品濾清器之數學模型並利用無跡卡爾曼濾波器(unscented
Kalman filter, UKF) 建構估測器進行濾清器雜質累積質量以及油品雜質
濃度之狀態估測，判斷濾芯更換時機及油品清潔度診斷。濾清器在長時間的使
用下，內部所累積的雜質會造成濾清器的阻塞，影響油路系統中其他元件之正
常運作之正常運作。目前油品濾清器多是依據時間和里程來判斷更換時機，本
論文提出透過量測濾清器進出口端壓差以及循環管路流量來即時估測濾心雜質
累積量及油品汙染程度等資訊，主動提醒使用者油品狀況及更換濾芯的時機，
達到預警的作用。實驗結果顯示，以無跡卡爾曼濾波器為基礎之即時估測，可
以在不同操作操作條件下有效的估算出濾清器雜質累積程度與油品汙染程度。

In this paper, we first establish the mathematical model of the oil filter and construct the estimator with unscented Kalman filter (UKF) to estimate the impurity accumulation quality and the impurity concentration of the oil filter. These is able to determine the timing of filter replacement and oil cleanliness diagnosis.In the long-term using of the filter, the internal accumulation of impurities will cause the filter block, and affecting the operation of other components of the oil system. At present, most of the oil filter is based on the time and mileage to determine the timing of replacement. This paper proposed by measuring the filter inlet and outlet pressure and flow of circulation pipeline to instantly estimate the
filter impurity accumulation and oil pollution or other information to take the
initiative to remind users of oil conditions and the timing of the filter replacement
to achieve the goal of early warning. The experimental results show that the
instantaneous estimation based on the unscented Kalman filter (UKF) that can
effectively estimate the accumulative level of the filter impurity and the level of
oil pollution under different operating conditions.

[1] 燃油濾清器先進驗證技術(2013),取自http://km.twenergy.org.tw/KnowledgeFree/knowledge_more?id=778
[2] http://www.arthursclipart.org/
[3] 蔡瀛逸等, 柴油車氮氧化物、多環芳香烴化合物及粒狀污染物排放減
量技術及策略之研究. 環保署/國科會空汙防制科研合作計畫, 2012.
[4] Bonne, Samuel, and Nicolas Arnault.”Oil Filter Clogging Rule-
Correlation between Mileage and Lab Test Clogging.” No. 2012-01-1754.
SAE Technical Paper, 2012.
[5] Lu, Jixia, et al. ”Study on Micro-pore Filter Blockage Model for Oil
Contamination Level Testing Under Constant Pressure.” Power and
Energy Engineering Conference (APPEEC), 2010 Asia-Pacific. IEEE,
2010
[6] Benaicha, Fehd, et al. ”Model based mass soot observer of diesel particle
filter.” IFAC Proceedings Volumes 44.1 (2011): 10647-10652.
[7] 黃科竣, 以無跡卡爾曼濾波器為基礎實現超級電容充電狀態、溫度及
剩餘壽命之及時估測, 國立台灣科技大學碩碩士論文, 台北,2016
[8] ISO 19438:2003,”Diesel fuel and petrol filters for internal combustion
engines – Filtration efficiency using particle counting and contaminant
retention capacity.” International Standard
[9] 燃油濾清器先進驗證技術,2013.
[10] lmfilter, mK667920 Fuel Filter For MITSUBISHI,2016.
[11] Lu, Jixia, et al. ”Study on Micro-pore Filter Blockage Model for Oil
Contamination Level Testing Under Constant Pressure.” Power and
Energy Engineering Conference (APPEEC), 2010 Asia-Pacific. IEEE,
2010.
[12] TOTAL, http:// www.buyoils.co.uk/ ourshop/ prod-2614885-TOTALAEROHYDRAULIC-
520-20-litre-pack.html.
[13] R. Holdich, Fundamentals of Particle Technology, 2012.
[14] 王衍凱, 以擴張型卡爾曼濾波器為基礎之感應馬達無感測控制及定子
轉子阻抗估測, 碩士論文,99 年, 台北.
[15] http:// www.popularmechanics.com/ cars/ how-to/ a8133/ whatsactually-
inside-an-oil-filter-13272754/
[16] G.Welch and G.Bishop,“An introduction to the kalman filter,”Darpartment
of computer Science University of North Carolina at Chapel Hill.
[17] 淺談汽車濾清器基礎知識及其品牌（2016）。2017 年7 月1 日，取自
http://www.duideng.net/article/detail/p308.html
[18] Tien, C. (2012). ”Principles of filtration. Elsevier.
[19] Guide to Contamination Standards ,P69, https://www.parker.com