System and method for detecting stochastic pre-ignition
First Claim
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1. A system comprising:
- a vibration intensity module that determines a vibration intensity of an engine over a first engine cycle and a second engine cycle, wherein the first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation; and
a stochastic pre-ignition (SPI) detection module that selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.
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Abstract
A system according to the principles of the present disclosure includes a vibration intensity module and a stochastic pre-ignition (SPI) detection module. The vibration intensity module determines a vibration intensity of an engine over a first engine cycle and a second engine cycle. The first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation. The SPI detection module selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.
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20 Claims
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1. A system comprising:
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a vibration intensity module that determines a vibration intensity of an engine over a first engine cycle and a second engine cycle, wherein the first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation; and a stochastic pre-ignition (SPI) detection module that selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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determining a vibration intensity of an engine over a first engine cycle and a second engine cycle, wherein the first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation; and selectively detecting stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification