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Method of preventing catalyst from being damaged through ignition timing correction

An ignition timing and catalyst technology, applied in ignition safety devices, engine ignition, forward/reverse ignition, etc., can solve the problems of misfire rate and allowable misfire rate difference, misfire detection degradation, etc.

Active Publication Date: 2018-06-29
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] However, according to the related art, when the calorie of the exhaust gas of the normal cylinder is changed under the same driving conditions, a difference occurs between the misfire rate and the allowable misfire rate
When the calorie of the exhaust gas of the normal cylinder is excessive, the misfire is lowered at the reference temperature, deteriorating the misfire detection

Method used

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  • Method of preventing catalyst from being damaged through ignition timing correction
  • Method of preventing catalyst from being damaged through ignition timing correction
  • Method of preventing catalyst from being damaged through ignition timing correction

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Embodiment Construction

[0035] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that this description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

[0036] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0037] figure 1 is a flowchart illustrating a method of preventing catalyst destruction through spark timing correction according to an exemplary embodiment of the present invention.

[0038] like figure 1 As s...

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Abstract

A method of preventing a catalyst from being damaged through igniting timing correction may include confirming a number of engine revolutions, determining whether a misfire occurs; confirming a driving condition of a vehicle when the misfire occurs, determining an ignition timing correction efficiency based on the vehicle driving condition, and determining a misfire rate by determining and confirming a misfire effect of a cylinder based on the determined ignition timing correction efficiency.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority from Korean Patent Application No. 10-2016-0170216 filed on December 14, 2016, the entire contents of which are incorporated herein by reference for all purposes. technical field [0003] The present invention relates to a method of preventing catalyst destruction through ignition timing correction, and more particularly, to a method for preventing catalyst destruction through ignition timing correction by detecting a misfire rate based on ignition timing correction efficiency and misfire effect of a cylinder Methods. Background technique [0004] Generally, ignition timing of an internal combustion engine is controlled based on the number of revolutions of the engine and the engine load to increase engine torque or reduce exhaust gas. [0005] In this regard, a system for controlling ignition timing of an engine according to the related art includes a revolutions per minute (RPM) senso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/22
CPCF02D41/22F02D2200/1015F02D2200/101F02D2041/228F01N9/00F01N2260/10F01N2430/08F01N2900/08F01N3/20F02D37/02F02P5/1522F02P11/06Y02A50/20Y02T10/40F02D45/00F02D41/04F02P5/145F02P5/103G01M15/046G01M15/048G01M15/08G01M15/106G01M15/11
Inventor 金龙植
Owner HYUNDAI MOTOR CO LTD