Whereas a knock sensor is reactive, Ferrari's system can predict engine knock before it even happens by directly monitoring the air pressure and initial cylinder wall temperature inside each cylinder.

A knock sensor is typically a piezoelectric sensor mounted on the engine block or cylinder head. The sensor is designed to detect the high-frequency vibrations caused by engine knocking and convert ...

The engine’s knock sensor (or sensors) detects preignition and detonation, potentially damaging forms of abnormal combustion. Though full-blown knocking and pinging are audible to the human ear ...

While knocking is no longer as widespread a problem thanks to the current state of anti-knock sensor technology, it can be an issue for vehicles with gasoline direct-injection engines.

This article discusses how an acoustic knock sensor works with a pre-chamber ignition and evaluates different cylinder pressure-based knock detection strategies and proposes a method that eliminates ...