STOCHASTIC PRE-IGNITION PREDICTION AND MITIGATION SYSTEMS AND METHODS
An engine control system for a vehicle includes a timer module, a stochastic pre-ignition (SPI) mitigation module, and a boost control module. The timer module tracks a period of operation of an engine where vacuum within an intake manifold is less than a first predetermined vacuum. The SPI mitigati...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
12.06.2014
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Subjects | |
Online Access | Get full text |
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Summary: | An engine control system for a vehicle includes a timer module, a stochastic pre-ignition (SPI) mitigation module, and a boost control module. The timer module tracks a period of operation of an engine where vacuum within an intake manifold is less than a first predetermined vacuum. The SPI mitigation module generates an SPI signal when the period is greater than a predetermined period and the vacuum is less than a second predetermined vacuum. The second predetermined vacuum is less than the first predetermined vacuum. The boost control module reduces output of a turbocharger in response to the generation of the SPI signal. |
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Bibliography: | Application Number: US201213712178 |