Control Device for Internal Combustion Engine and Abnormal Combustion Detecting Method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

15557619

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

There are provided a control device and an abnormal combustion detecting method for detecting occurrence of abnormal combustion during an expansion stroke of an internal combustion engine. The control device of the present invention receives a detection signal of a vibration sensor for detecting pressure vibration in a combustion chamber, and detects occurrence of knocking based on a knocking-specific frequency component extracted from the detection signal in a knocking determination region within the expansion stroke. In addition, the control device detects the characteristic value, different from the knocking-specific frequency component, of the detection signal in an abnormal combustion determination region which includes the knocking determination region and which expands over the compression stroke before ignition timing and the expansion stroke, and detects self-ignition during the compression stroke before ignition timing and self-ignition during the expansion stroke, based on the characteristic value.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
HITACHI AUTOMOTIVE SYSTEMS LTDHITACHINAKA-SHI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
MATSUFUJI, Koji Isesaki-shi, JP 9 120
UEZONO, Shouichirou Isesaki-shi, JP 1 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation