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Method for detecting combustion noise in internal combustion engine, combustion noise detection device, and device for controlling internal combustion engine
Method for detecting combustion noise in internal combustion engine, combustion noise detection device, and device for controlling internal combustion engine
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机译:在内燃机中检测燃烧噪声的方法,燃烧噪声检测装置和用于控制内燃机的装置
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摘要
Although a method for changing a combustion method taking place in an internal combustion engine depending on running condition is proposed, it can be considered that conditions under which a combustion noise occurs naturally differ with different methods. A detection method of prior art is not compatible with different combustion methods and the accuracy of combustion noise detection was low. Accurate combustion noise detection is enabled by identifying a combustion mode taking place in the internal combustion engine, selecting a sensed frequency or frequency band of a combustion noise sensor that detects a combustion noise in a combustion chamber of the internal combustion engine according to the combustion mode, and detecting a combustion noise.
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