Method to adjust an oil control valve actuation response time using cylinder valve diagnostics
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United States of America Patent
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Oct 9, 2018
Grant Date -
May 24, 2018
app pub date -
Nov 18, 2016
filing date -
Nov 18, 2016
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Abstract
A method to adjust an oil control valve actuation response time using cylinder valve diagnostic results includes commanding an engine cylinder to deactivate/reactive when conditions are met and then detecting if a deactivation/reactivation response time failure has occurred by analyzing the cylinder diagnostics results. If a predetermined number of failures are detected at the cylinder within a predetermined number of engine cycles then the engine controller operates to adjust the oil control valve response time to improve the response time accuracy.
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