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US 2010/0250089 A1Published application
Method and system for generating a diagnostic signal of an engine component using an in-cylinder pressure sensor
AssigneeGM Global Technology Operations LLC
InventorsKenneth J. Buslepp, Douglas R. Verner, Joseph R. Dulzo, Jonathan T. Shibata, Daniel G. Brennan, Joshua Cowgill
Life of this patent
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Abstract
A method and a control module for diagnosing an engine component function includes a comparison module comparing an in-cylinder pressure signal to a threshold and a fault indication module generating a diagnostic signal for an engine component in response to comparing.
Claims20
A method comprising:
- generating an in-cylinder pressure signal for an engine;
- and
- comparing the in-cylinder pressure signal to a threshold;
- and
- generating a diagnostic signal for an engine component in response to comparing.
2 more elements
A control system comprising:
- a comparison module comparing an in-cylinder pressure signal to a threshold;
- and
- a fault indication module generating a diagnostic signal for an engine component in response to comparing.
Dependencies are inferred from the claim text.