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US 8,510,016 B2Granted
Method and system for controlling an engine using in-cylinder pressure sensor signals
AssigneeGM Global Technology Operations LLC
InventorsKenneth J. Buslepp, Douglas R. Verner
Life of this patent
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Abstract
A method and a control system that includes a window module that determines a piston position window, a mean effective pressure determination module that generates a mean effective pressure with in-cylinder pressure signals within the piston position window and an engine control module that controls the engine using the mean effective pressure.
Claims16
A method of controlling an engine comprising:
- generating in-cylinder pressure signals using a cylinder pressure sensor;
- setting filter coefficients for a filter based upon an engine operating condition;
- filtering the in-cylinder pressure signals with the filter to form filtered pressure signals;
- determining a piston position window;
- determining a piston position;
- generating a mean effective pressure based on the filtered pressure signals from within the piston position window;
- and
- controlling the engine using the mean effective pressure.
5 more elements
A control system for controlling an engine comprising:
- a window module that determines a piston position window;
- a filter coefficient determination module that sets filter coefficients for a filter based upon an engine operating condition;
- a filter module that receives in-cylinder pressure signals and that filters the in-cylinder pressure signals with the filter to form filtered pressure signals;
- a mean effective pressure determination module that generates a mean effective pressure based on the filtered pressure signals within the piston position window;
- and
- an engine control module that controls the engine using the mean effective pressure.
3 more elements
Dependencies are inferred from the claim text.