Knock sensor deployment on industrial engines
Knock sensor deployment on industrial engines
(OP)
What is the conventional wisdom on deployment of knock sensors on industrial engines - e.g. number of sensors per bank, location of sensors?
On automotive engines, 1-2 sensors for the complete engine is considered quite sufficient for up to 8 cylinders. I understand that a higher concentration of sensors is typically used on industrial engines. What drives using more than 1 sensor/4 cylinders (assuming a capable knock DSP with the necessary windowing & processing speed)?
On automotive engines, 1-2 sensors for the complete engine is considered quite sufficient for up to 8 cylinders. I understand that a higher concentration of sensors is typically used on industrial engines. What drives using more than 1 sensor/4 cylinders (assuming a capable knock DSP with the necessary windowing & processing speed)?





RE: Knock sensor deployment on industrial engines
/signed/ Hammerhead
RE: Knock sensor deployment on industrial engines
RE: Knock sensor deployment on industrial engines
RE: Knock sensor deployment on industrial engines
RE: Knock sensor deployment on industrial engines
RE: Knock sensor deployment on industrial engines
In real life, if a knock sensor detects a problem, it will automatically adjust timing to that cylinder first, then give a warning, then shut the unit down.
Cars do not have an ignition systen that can individually adjust timing (spark timing)unless we put in a more complex programing, so that protection would not be available without more cost to the automobile. Next, we would see more "check engine" lights and customers would be mad.
Finally, would we want our cars to shutdown? So we live with our cars having undetected knock and failures. As a consumer, if an engine fails because of knock, the car company will ponit to the fuel, fuel maker to gas stations, gas stions to the engine, and the consumer is stuck holding the bag. Its the whole risk management game.