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Hybrid catalyst radiant preheating system

A heating system, radiation heating technology, applied in the direction of machines/engines, mechanical equipment, engine components, etc.

Inactive Publication Date: 2011-11-16
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, catalytic converters may provide limited emission reduction performance when starting a hybrid electric vehicle and starting / stopping the vehicle

Method used

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  • Hybrid catalyst radiant preheating system
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Examples

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Embodiment Construction

[0067] 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 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 understood as 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.

[0068] As used herein, the term "module" may refer to or be part of or include the following: an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor executing one or more software or firmware programs (shared, dedicated, or group) and / or memory, combinational logic, and / or other suitable components that provide the described functionality.

[0069] exist figure 1 In , an exemplary engine system 10 including a catalyst h...

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PUM

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Abstract

The present invention relates to a hybrid catalyst radiation preheating syste, in particular, a catalyst heating system which includes a monitoring module, a mode selection module and an electrically heated catalyst (EHC) control module. The monitoring module monitors at least one of (i) a first active volume of a catalyst assembly in an exhaust system of an engine and (ii) a first temperature of a non-EHC of the catalyst assembly. The mode selection module is configured to select a non-EHC radiant heating mode and generate a mode signal based on the at least one of the first active catalyst volume and the first temperature. An EHC control module increases temperature of the EHC to an elevated temperature that is greater than a stabilization temperature based on the mode signal. The stabilization temperature is greater than a catalyst light off temperature.

Description

technical field [0001] The present disclosure relates to catalytic converters 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 described in this Background section, and aspects of the specification that are not otherwise prior art at the time of filing, are neither expressly nor implicitly admitted to be contrary to the present disclosure of the present disclosure. have technology. [0003] Catalytic converters are used in the exhaust system of internal combustion engines (ICE) to reduce emissions. As an example, a three-way catalytic converter (TWC) reduces nitrogen oxides, carbon monoxide, and hydrocarbons within the exhaust system. A three-way converter converts nitrogen oxides to nitrogen and oxygen, carbon monoxide to carbon dioxide, and oxidizes unburned hydrocarbons to produce carbon dioxide and water. [...

Claims

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Application Information

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IPC IPC(8): F01N3/20F01N9/00
CPCF01N2013/026F01N2900/1404Y02T10/47F01N13/02F01N3/2026F01N2900/08F01N3/035Y02T10/26F01N2900/0602F01N2900/1602F01N9/00F01N3/2013F01N13/009F01N13/0097Y02T10/12Y02T10/40
Inventor E.V.冈策H.G.桑托索B.L.斯波恩B.N.鲁斯
Owner GM GLOBAL TECH OPERATIONS LLC
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