• Spectroscopy and Spectral Analysis
  • Vol. 33, Issue 2, 540 (2013)
CHEN Li-dan*
Author Affiliations
  • [in Chinese]
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    DOI: 10.3964/j.issn.1000-0593(2013)02-0540-04 Cite this Article
    CHEN Li-dan. Application of Atomic Absorption Spectrometry in the Engine Knock Detection[J]. Spectroscopy and Spectral Analysis, 2013, 33(2): 540 Copy Citation Text show less

    Abstract

    Because existing human experience diagnosis method and apparatus for auxiliary diagnosis method are difficult to diagnose quickly engine knock. Atomic absorption spectrometry was used to detect the automobile engine knock in an innovative way. After having determined Fe, Al, Cu, Cr and Pb content in the 35 groups of Audi A6 engine oil whose travel course is 2 000~70 000 kilometers and whose sampling interval is 2 000 kilometers by atomic absorption spectrometry, the database of primary metal content in the same automobile engine at different mileage was established. The research shows that the main metal content fluctuates within a certain range. In practical engineering applications, after the determination of engine oil main metal content and comparison with its database value, it can not only help to diagnose the type and location of engine knock without the disintegration and reduce vehicle maintenance costs and improve the accuracy of engine knock fault diagnosis.
    CHEN Li-dan. Application of Atomic Absorption Spectrometry in the Engine Knock Detection[J]. Spectroscopy and Spectral Analysis, 2013, 33(2): 540
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