System for engine knock control
First Claim
1. A system to control knock in an engine having one or more cylinders in which combustion occurs, comprising:
- a sensor that detects the ionization of the combustion process in one or more cylinders, the ionization being related to the knock intensity occurring in one or more cylinders, the sensor further transmitting a signal associated with the knock intensity; and
a controller that monitors the stochastic behavior of the ionization signal and adjusts the ignition timing of the engine to operate the engine with an actual knock intensity that is below a knock borderline limit, the knock borderline limit defining a desired knock intensity.
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Accused Products
Abstract
The present invention provides a system for controlling knock in an engine having one or more cylinders in which combustion occurs. The system includes a sensor that detects the ionization of the combustion process in the cylinders. The ionization is related to the knock intensity occurring in the cylinders, and the sensor further transmits a signal associated with the knock intensity. The system further includes a controller that monitors the stochastic behavior of the ionization signal and adjusts the ignition timing of the engine to operate the engine with an actual knock intensity that is below a knock borderline limit that defines a desired knock intensity.
62 Citations
16 Claims
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1. A system to control knock in an engine having one or more cylinders in which combustion occurs, comprising:
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a sensor that detects the ionization of the combustion process in one or more cylinders, the ionization being related to the knock intensity occurring in one or more cylinders, the sensor further transmitting a signal associated with the knock intensity; and a controller that monitors the stochastic behavior of the ionization signal and adjusts the ignition timing of the engine to operate the engine with an actual knock intensity that is below a knock borderline limit, the knock borderline limit defining a desired knock intensity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method to control knock in an engine having one or more cylinders in which combustion occurs comprising:
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detecting the ionization of the combustion process in one or more cylinders, the ionization being related to the knock intensity occurring in one or more cylinders; transmitting a signal associated with the knock intensity; monitoring the stochastic behavior of the ionization signal; and
adjusting the ignition timing of the engine to operate the engine with an actual knock intensity that is below a knock borderline limit, the knock borderline limit defining a desired knock intensity. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification