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Particulate filter and hydrocarbon adsorber bypass systems

An adsorber and filter technology, which is applied in the direction of machines/engines, electronic control of exhaust gas treatment devices, mechanical equipment, etc., can solve problems such as ineffective treatment of HC emissions

Active Publication Date: 2015-03-11
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the warm-up period, the catalytic converter cannot effectively treat HC emissions

Method used

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  • Particulate filter and hydrocarbon adsorber bypass systems
  • Particulate filter and hydrocarbon adsorber bypass systems
  • Particulate filter and hydrocarbon adsorber bypass systems

Examples

Experimental program
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Embodiment Construction

[0055] The following description is merely exemplary in nature and is in no way intended to limit the invention, its application or uses. For purposes of clarity, the same reference numbers will be used in the drawings to identify 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 invention.

[0056] As used herein, the term module may include: application-specific integrated circuits (ASICs); electronic circuits; combinational logic circuits; field-programmable gate arrays (FPGAs); ); other suitable components providing the described functions; or a combination of some or all of the above, for example in the form of a system on a chip, or may be part of the above. The term module may include memory (shared, dedicated, or grouped) that st...

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PUM

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Abstract

A regeneration system includes a first comparison module that at least one of (i) compares a first temperature of an adsorber to an adsorber release temperature and (ii) compares a second temperature of an engine to a predetermined temperature, and generates a first comparison signal. A second comparison module that compares a particulate matter output of the engine with a predetermined output and generates a second comparison signal. A mode selection module that selects a mode and generates a mode signal based on the first comparison signal and the second comparison signal. A bypass valve control module that adjusts position of a bypass valve to bypass at least one of a particulate matter (PM) filter and the adsorber based on the mode signal.

Description

technical field [0001] The present invention relates to particulate matter filters and hydrocarbon adsorbers for exhaust systems. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the disclosure. The work of the presently named inventors to the extent described in this Background section, and aspects of this description that may not constitute prior art at the time of filing, are neither expressly nor impliedly admitted to be Invention conflicts with prior art. [0003] Catalytic converters are used in the exhaust system of internal combustion engines (ICE) to reduce emissions. For example, a three-way catalytic converter (TWC) reduces nitrogen oxides, carbon monoxide and hydrocarbons in the exhaust system. Three-way catalytic converter: converts nitrogen oxides to nitrogen and oxygen; converts carbon monoxide to carbon dioxide; and oxidizes unburned hydrocarbons (HC), thereby producing carbo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N9/00
CPCF01N3/031F01N3/0821F01N9/002F01N3/0878Y02T10/47Y02T10/20Y02T10/12Y02T10/40
Inventor E.V.冈策H.G.桑托索M.J.小帕拉托尔
Owner GM GLOBAL TECH OPERATIONS LLC