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Post-combustion fuel injection control systems and methods

A technology of control system and fuel control module, which is applied in the direction of electrical control, engine control, combustion engine, etc., and can solve the problems of increasing the cost of automobile manufacturing

Inactive Publication Date: 2011-11-09
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Calibrating and adjusting the sensors used for each different car and exhaust system can also increase the cost of manufacturing the car

Method used

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  • Post-combustion fuel injection control systems and methods
  • Post-combustion fuel injection control systems and methods
  • Post-combustion fuel injection control systems and methods

Examples

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Embodiment Construction

[0046] 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 refer to similar elements. As used herein, the phrase "at least one of A, B, and C" should be interpreted to mean a logical (A or B or C) using a non-specific 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.

[0047] As used herein, the term "module" means an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or grouped) and memory, a combinational logic circuit, and / or other suitable components that provide the described functionality.

[0048]Internal combustion engines generate drive torque through the combustion of an air / fuel mixture. Exhaust gas resulting from the combustion of the air / fuel mix...

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PUM

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Abstract

The invention relates to the post-combustion fuel injection control systems and methods. The exhaust control system comprises a total loss determination module and a fuel control module. The total loss determination module determines a total energy loss rate of exhaust upstream of a location in an exhaust system based on a convective energy loss rate upstream of the location, a conductive energy loss rate upstream of the location, and an oxidation energy gain rate upstream of the location. The fuel control module receives a target temperature for the exhaust at the location and determines a target input energy rate based on the target temperature, a temperature of exhaust input to the exhaust system, and the total energy loss rate. The fuel control module controls a rate of fuel injection into the exhaust system upstream of an oxidation catalyst based on the target input energy rate.

Description

[0001] Cross References to Related Applications [0002] This application is related to U.S. Patent Application No. xx / xxx,xxx filed on [insert filing date] (Attorney Docket No. P009991-PTDE-DPH / 8540P-001039) and U.S. Patent Application No. xx / xxx filed on [insert filing date] , xxx (attorney file number P010133-PTDE-DPH / 8540P-001041). The disclosures of the above applications are incorporated herein by reference in their entirety. technical field [0003] The present invention relates to internal combustion engine systems and in particular to exhaust systems. Background technique [0004] The background description herein is for the purpose of generally presenting the context of the invention. The work of the inventors of the present invention described in this Background section, and those aspects of the specification that could not otherwise be referred to as prior art at the time of application, are not to be admitted, either expressly or implicitly, as opposing the pr...

Claims

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Application Information

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IPC IPC(8): F02D43/00
CPCF01N2900/1404F01N2610/146Y02T10/47F01N3/035F01N9/005F01N2900/0411F01N3/0253Y02T10/24F01N3/208F01N9/002Y02T10/12Y02T10/40
Inventor P.巴拉萨
Owner GM GLOBAL TECH OPERATIONS LLC