KNOCKING DETERMINATION DEVICE AND KNOCKING CONTROL DEVICE

Title:

KNOCKING DETERMINATION DEVICE AND KNOCKING CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2021/172024

Kind Code:

A1

Abstract:

A waveform of each predetermined series of vibrations included in a vibration waveform is referred to below as an "individual waveform (Wo)". An end determination unit (34) determines an end of each individual waveform (Wo), and thus recognizes a boundary between individual waveforms (Wo). A feature extraction unit (33) extracts features (Ps, Pm, Pe) of each individual waveform (Wo) on the basis of the recognized boundary. A knocking determination unit (35) determines, with respect to each individual waveform (Wo) of which the features have been extracted by the feature extraction unit (33), whether the features are features of a knocking waveform. The knocking determination unit (35) then determines that knocking is present on the condition that the features of one of the individual waveforms (Wo) are determined to be the features of the knocking waveform.

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Inventors:

TSUCHIYA YUUKI (JP)
KUROSAWA MASANORI (JP)
TANAKA KOU (JP)
NISHIGAKI KAZUHIRO (JP)

Application Number:

PCT/JP2021/005021

Publication Date:

September 02, 2021

Filing Date:

February 10, 2021

Export Citation:

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Assignee:

DENSO CORP (JP)

International Classes:

G01H17/00; F02D45/00

Foreign References:

JP2001227400A	2001-08-24
JP2006336604A	2006-12-14

Other References: