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Environmental factor based particulate filter regeneration

A technology of environmental signal and ambient temperature, applied in the direction of machine/engine, electrical control, mechanical equipment, etc.

Inactive Publication Date: 2010-09-15
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first post injection module generates the first post injection signal

Method used

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  • Environmental factor based particulate filter regeneration
  • Environmental factor based particulate filter regeneration
  • Environmental factor based particulate filter regeneration

Examples

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Embodiment Construction

[0035] The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the invention, the application or uses of the invention. For purposes of clarity, the same reference numbers will be used in the drawings to refer to the same elements.

[0036] The following description is exemplary only and is not intended to limit the invention, the application or uses of the invention. For purposes of clarity, the same reference numbers will be used in the drawings to refer to 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 invention.

[0037] As used herein, the term module may refer to, include, or be subordinate to an Application Specific Integrated Circuit (ASIC), electronic circuit, processor ...

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Abstract

The present invention relates to environmental factor based particulate filter regeneration. A control module for a vehicle includes a correction module that generates a correction signal based on a regeneration state of an exhaust system of the vehicle and based on a received environmental signal. The environmental signal includes at least one of an altitude value, an ambient temperature, and anair flow value. The air flow value corresponds to air flow across an external area of the exhaust system. A first post injection module generates a first post injection signal. A second post injection module adjusts the first post injection signal based on the correction signal to generate a second post injection signal.

Description

technical field [0001] The present invention relates to engine control systems for internal combustion engines, and more particularly to particulate filter regeneration systems and fuel injection control. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the disclosure. To the extent described in this Background section, the works of the presently named inventors, and aspects of the description that did not constitute prior art at the time of filing, are neither expressly nor impliedly admitted to be prior art to the present invention. [0003] The combustion cycle of an engine produces particulate matter, which is typically filtered from the exhaust using a particulate filter (PF). The PF is provided in the engine exhaust system. Over time, the PF gradually fills up and the collected particles must be removed. Perform a regeneration process to remove PF particles. The regeneration process i...

Claims

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Application Information

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IPC IPC(8): F02D41/04F02D41/30F01N3/023
CPCY02T10/44F02D2200/0414F02D41/029F02D2200/703F02D2200/501F02D41/405Y02T10/40
Inventor S·芬克T·小拉罗斯E·R·斯奈德P·贾辛基维奇J·D·穆林斯J·M·佩林
Owner GM GLOBAL TECH OPERATIONS LLC
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