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System and method for estimating torque output of a homogeneous charge compression ignition engine

A technology of torque output and compression ignition, applied in the field of torque output system, can solve the problems of unstable, difficult to control, lack of

Active Publication Date: 2011-09-28
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the HCCI combustion mode may be more difficult to control (and therefore less stable) due to the lack of a direct combustion initiator

Method used

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  • System and method for estimating torque output of a homogeneous charge compression ignition engine
  • System and method for estimating torque output of a homogeneous charge compression ignition engine
  • System and method for estimating torque output of a homogeneous charge compression ignition engine

Examples

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Embodiment Construction

[0053] 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.

[0054] As used herein, the term module means an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated or grouped) and memory, combinational logic circuits and / or or other suitable components that provide the desired function.

[0055] The engine control system controls the torque output of the engine to achieve a desired torque. For example, the engine control system may control the torque output of t...

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Abstract

The invention relates to a system and a method for estimating torque output of a homogeneous charge compression ignition engine, and concretely provides a control system for a homogeneous charge compression ignition (HCCI) engine including a fuel requirement estimation module, a torque estimation module, and a torque control module. The fuel requirement estimation module estimates a fuel requirement of the HCCI engine based on a desired indicated mean effective pressure (IMEP) of cylinders in the HCCI engine. The torque estimation module estimates a torque output of the HCCI engine based on the estimated fuel requirement. The torque control module adjusts the torque output of the HCCI engine based on the estimated torque output and a desired torque output.

Description

technical field [0001] The present invention relates to internal combustion engines, and more particularly to systems and methods for estimating the torque output of homogeneous charge compression ignition (HCCI) engines. Background technique [0002] The background description provided herein is for the purpose of generally presenting the background information of the disclosure. To the extent described in this Background section, the work of the presently named inventors, and aspects of this description that may not constitute prior art at the time of filing, are neither expressly nor implicitly admitted to the present Invention prior art. [0003] Homogeneous charge compression ignition (HCCI) engines combust an air and fuel (A / F) mixture within cylinders to drive pistons and generate drive torque. The HCCI engine can be operated in spark ignition (SI) combustion mode or HCCI combustion mode to ignite the A / F mixture. Additionally, the HCCI engine may be operated in mi...

Claims

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Application Information

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IPC IPC(8): F02D41/04F02P5/00F02D17/02F02D13/02F02D29/02F02D43/00
CPCF02D11/105F02B37/18F02D2250/18F02B1/12Y02T10/18F02D41/3035F02D2250/22F02D2200/1004F02M25/0707F02D2041/1436F02D13/0219F02D13/06Y02T10/128F02M26/05Y02T10/12
Inventor J·T·施巴塔A·B·雷尔A·P·巴纳斯科J-M·康P·卡法尼克
Owner GM GLOBAL TECH OPERATIONS LLC
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