Low speed pre-ignition knock detection

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United States of America Patent

PATENT NO 9903334
SERIAL NO

15150796

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Abstract

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A system for and a method of knock detection and control for an engine utilizes a knock sensor configured to generate a knock signal indicative of a vibration of the engine caused by abnormal combustion. A controller is configured to receive the knock signal, determine, with respect to a crank angle of the engine, distinct monitoring windows for low speed pre-ignition (LSPI) knock and spark knock, respectively, based on (i) spark timing and (ii) an appropriate mass fraction burn (MFB) location, monitor the knock signal using the distinct monitoring windows, detect one of LSPI knock and spark knock based on the monitoring, and control the engine to mitigate the detected LSPI knock or spark knock.

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Patent Owner(s)

  • FCA US LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Attard, William P Brighton, US 18 38
Seyfried, Philipp A Rochester, US 2 7

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