Engine-knocking determining device and method

Abstract

An engine-knocking determining device and method are provided for a pre-chamber engine that causes combustion by discharging flame in a pre-chamber into a main chamber. The engine-knocking determining device includes: a pressure amplitude acquiring unit that acquires pressure amplitudes of the main chamber; a section delimiting unit that delimits the pressure amplitudes acquired by the pressure amplitude acquiring unit into a first section prior to a maximum in-cylinder pressure and a second section subsequent to the maximum in-cylinder pressure; and a determining unit that determines whether knocking has occurred, by comparing a first maximum amplitude of the pressure amplitude in the first section with a second maximum amplitude of the pressure amplitude in the second section.

Dependencies are inferred from the claim text.