Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for thermal control of aftertreatment

A control system and control point technology, applied in electrical control, exhaust treatment, engine control, etc., can solve the problems of not providing, not adapting to changing environmental conditions, etc.

Pending Publication Date: 2021-01-29
CATERPILLAR INC
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] While the warming assessment of the '545 patent may be useful in some circumstances, it may not provide a method for controlling the operation of the engine to warm the catalyst at a sufficient rate
Furthermore, the '545 patent may not provide a system for adapting to changing environmental conditions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for thermal control of aftertreatment
  • Method and system for thermal control of aftertreatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the features that are claimed. As used herein, the terms "comprises", "comprising", "having", "including" or other variations are intended to cover a non-exclusive inclusion such that a range of A process, method, article, or apparatus of elements includes not only these elements, but may also include other elements not explicitly listed or inherent in such a process, method, article, or apparatus. Furthermore, in this disclosure, relative terms (eg, "about," "approximately," and "approximately," etc.) are used to indicate a possible variation of ±10% from the stated values.

[0014] figure 1 Components of the control system 10 for ensuring adequate warming of the one or more catalysts 28 , 32 of the internal combustion engine system 12 are shown. The control system 10 may include a number of inputs 40 associated with the internal...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for controlling an internal combustion engine system including a catalyst includes receiving a desired output for an internal combustion engine, and receiving sensor information including information indicative of a temperature of the catalyst. The method includes calculating a plurality of sets of engine performance values based on respective sets of candidate control points, the engineperformance values including a temperature change rate at which the temperature of the catalyst changes over time, and determining whether the temperature change rate satisfies a minimum warmup rate for the catalyst. The method also includes controlling the internal combustion engine based on a selected set of candidate control points and the minimum warmup rate.

Description

technical field [0001] The present invention relates generally to internal combustion engines, and more particularly to methods and systems for controlling an internal combustion engine system having one or more exhaust aftertreatment devices. Background technique [0002] Internal combustion engines are used in various vehicles, mobile machines, and stationary machines to perform work or generate power through the combustion of fuel, such as diesel fuel. Combustion of diesel fuel may produce pollutants such as unburned hydrocarbons, carbon monoxide and nitrogen oxides (NOx). Aftertreatment devices, such as oxidation or selective catalytic reduction (SCR) catalysts, reduce the amount of potentially harmful emissions produced by the internal combustion engine. For example, an oxidation catalyst catalyzes a reaction that converts NOx into NOx, which is a harmless compound. The aftertreatment system may include other aftertreatment devices, such as particulate filters and / or ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F02D41/02F02D41/00F02D41/30
CPCF02D41/024F02D41/0255F02D41/0055F02D41/0002F02D41/30F02D2200/0611F02D2200/0414F02D2200/0406F02D2200/0802F02D2200/101F02D2200/703F01N2900/1602F02D2200/0804F02D41/401F02D41/005F02D41/1406F02D2041/1433F02D2041/1412F01N3/10Y02T10/12F02D41/0235F02D41/0245F02D41/027F01N3/18F02D1/16F01N2900/08F02D2001/167
Inventor S·J·沙博内尔
Owner CATERPILLAR INC
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com