METHOD TO REDUCE ENGINE COMBUSTION AND HARMONIC NOISE FOR MISFIRE DETECTION
First Claim
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1. A method to Reduce Engine Combustion and Harmonic Noise for Misfire Detection on a sensor signal in a vehicle comprising the steps of:
- determining combustion and harmonic noise correction factors for current operating conditions of an engine corresponding to the actual vehicle;
applying the combustion and harmonic noise correction factors to a sensor signal, thereby removing engine combustion and harmonic noise from the sensor signal and leaving a misfire data signal in the sensor signal output.
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Abstract
A method and system for determining combustion and harmonic noise correction factors for current operating conditions corresponding to the actual vehicle and applying the combustion and harmonic noise correction factors to a sensor signal, thereby removing engine combustion and harmonic noise from the sensor signal and leaving a misfire data signal in the sensor signal.
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Citations
21 Claims
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1. A method to Reduce Engine Combustion and Harmonic Noise for Misfire Detection on a sensor signal in a vehicle comprising the steps of:
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determining combustion and harmonic noise correction factors for current operating conditions of an engine corresponding to the actual vehicle; applying the combustion and harmonic noise correction factors to a sensor signal, thereby removing engine combustion and harmonic noise from the sensor signal and leaving a misfire data signal in the sensor signal output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle comprising:
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an internal combustion engine; an engine controller comprising a memory and a processor, wherein said memory stores instructions operable to cause said engine controller to perform the steps of; determining a combustion and harmonic noise correction factors for current operating conditions corresponding to the actual vehicle using an advanced replicated learning process; applying the combustion and harmonic noise correction factors to a sensor signal, thereby removing engine harmonic noise from the sensor signal and leaving a data signal in the sensor signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification