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Target particulate matter filter regeneration and temperature control system

A regenerative system and filter technology, applied in electrical control, engine control, machine/engine, etc., can solve the problem of reducing the service life of TWC and/or OC

Inactive Publication Date: 2014-05-07
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased temperature of exhaust system components can reduce TWC and / or OC service life

Method used

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  • Target particulate matter filter regeneration and temperature control system
  • Target particulate matter filter regeneration and temperature control system
  • Target particulate matter filter regeneration and temperature control system

Examples

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Embodiment Construction

[0084] The following description is merely exemplary in nature and is in no way intended to limit the disclosure, its application, or uses. For purposes of clarity, the same reference numbers have been used in the drawings to refer to similar elements. As used herein, the phrase "at least one of A, B, and C" should be construed to mean a logical (A or B or C) 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 disclosure.

[0085] As used herein, the term "module" may refer to a portion of or include the following: Application Specific Integrated Circuits (ASICs); electronic circuits; combinational logic circuits; Field Programmable Gate Arrays (FPGAs); (shared, dedicated, or grouped); other suitable components that provide the described functionality; or a combination of some or all of the above, such as a system on a chip. The term "module" may include memory ...

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PUM

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Abstract

A regeneration system includes a particulate matter (PM) filter loading module that determines a current soot loading level of a PM filter. A PM filter temperature module determines a temperature of the PM filter. An exhaust flow rate module determines an exhaust flow rate of the PM filter. A control module deactivates an air pump of an air pump circuit and operates an engine within a predetermined range of stoichiometry based on the current soot loading, the temperature and the exhaust flow rate.

Description

technical field [0001] The present disclosure relates to regeneration of particulate filters of exhaust systems. Background technique [0002] The background description provided here is for the purpose of generally presenting the context of the disclosure. A portion of the work of the presently named inventors is described in this Background section, and that portion, and aspects of this description that were not otherwise prior art at the time of filing, are neither expressly nor impliedly admitted to be a breach of prior art in this disclosure. technology. [0003] The engine produces particulate matter (PM), which is filtered from the exhaust by a PM filter. PM filters are placed in the engine's exhaust system. The PM filter reduces the emission of PM generated during combustion. Over time, the PM filter becomes full. During regeneration, PM may be combusted within the PM filter. Regeneration may involve heating the PM filter to the combustion temperature of the PM...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/032F01N9/00
CPCF02D41/1445F02D2200/0802Y02T10/22F01N2900/1411F01N2013/026F01N3/106F01N2900/1602F01N9/002F01N3/225F01N2900/1606F02D41/029F01N3/035F01N3/101F01N13/0097F02D41/0255Y02T10/12
Inventor E.V.冈策H.G.桑托索M.J.小帕拉托尔
Owner GM GLOBAL TECH OPERATIONS LLC
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