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Method and system for detecting and reducing engine auto-ignition

A technology of engine and engine speed, applied in the direction of engine components, combustion engine, engine ignition, etc., can solve problems such as impact, and achieve the effect of reducing deflagration

Active Publication Date: 2013-04-24
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the magnitude of knock measured for a single combustion event is affected by the location of the sensor in the combustion chamber and by vibrations in the cylinder block caused by the valve train or other mechanical components

Method used

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  • Method and system for detecting and reducing engine auto-ignition
  • Method and system for detecting and reducing engine auto-ignition
  • Method and system for detecting and reducing engine auto-ignition

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Embodiment Construction

[0054] The following description is merely exemplary in nature and is not intended to limit the invention, its application or uses in any way. For purposes of clarity, the same reference numerals have been used to designate the same elements in the drawings. As used herein, the phrase at least one of A, B, and C should be understood to mean a logical (A or B or C), ie, using a non-exclusive logical or. It should be understood that steps within a method may be executed in different order without altering the principles of the present invention.

[0055] As used herein, the term "module" refers to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or clustered) and memory, a combinational logic circuit that executes one or more software or firmware programs , and / or other suitable components that provide the described functionality.

[0056] Now refer to the attached figure 1 , shows engine 10 in communication with dynamo...

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PUM

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Abstract

A method and a control module for performing the same include a filter module filtering in-cylinder pressure signals using a filter to form filtered in-cylinder pressure signals. The control module further includes a heat release rate determination module generating heat release rate signals based on the in-cylinder pressure signals and a maximum heat rate determination module determining a maximum heat release rate from the heat release rate signals. The system also includes a correction module correcting auto-ignition for the engine based on the maximum heat release rate.

Description

technical field [0001] The present invention relates generally to methods and systems for detecting engine auto-ignition and knock, and, more particularly, to methods and systems for reducing engine auto-ignition or spark-knock. Background technique [0002] The background art provided in this section is for the purpose of generally presenting the context of the invention. The work of the inventors of the present invention described in this background section, as well as other aspects of this background section that are not prior art as of the filing date, cannot be considered, expressly or implicitly, to be prior art that conflicts with the present invention. technology. [0003] Deflagration is an audible sound produced by intense combustion. Repeated deflagration events cause elevated surface temperatures and surface vibrations in the combustion chamber and destructive metal removal on pistons, cylinder heads, valves, spark plugs, and cylinder walls. [0004] However, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02P17/00
CPCF02D35/023F02P5/152F02D2041/1432F02P5/153F02D35/027G01L23/225Y02T10/46Y02T10/40
Inventor C·H·富尔克茨J·C·扎瓦拉朱拉多K·T·基贝尔J·吴
Owner GM GLOBAL TECH OPERATIONS LLC