METHOD FOR DIAGNOSING A SUPERCHARGING SYSTEM OF INTERNAL COMBUSTION ENGINES
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Abstract
A method for diagnosing a forced induction system is described, in which by measured data acquisition the frequency spectrum generated upon rotation of the forced induction system is acquired, and by measured data evaluation the acquired frequency spectrum is evaluated using frequency analysis. A frequency characteristic of the forced induction system, ascertained by frequency analysis, for at least one predefined operating point of the forced induction system is compared with a predefined vehicle-specific frequency characteristic of the forced induction system for the at least one predefined operating point.
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Citations
16 Claims
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1-8. -8. (canceled)
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9. A method for diagnosing a forced induction system of an internal combustion engine, comprising:
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acquiring by measured data acquisition a frequency spectrum generated by the forced induction system, evaluating by measured data evaluation the acquired frequency spectrum using frequency analysis, and comparing a frequency characteristic of the forced induction system, ascertained by frequency analysis, for at least one predefined operating point of the forced induction system with a predefined vehicle-specific frequency characteristic of the forced induction system for the at least one operating point of the forced induction system. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification