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Method and system for reducing turbo lag in an engine

A turbine speed, desired technology, applied in the direction of combustion engine, engine control, engine components, etc., can solve the problems of not providing fast response, not accurately controlling engine torque output, etc.

Inactive Publication Date: 2011-10-19
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional engine control systems do not control engine torque output as accurately as desired
Additionally, conventional engine control systems do not provide a quick response to control signals or coordinate engine torque control among the various devices that affect engine torque output

Method used

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  • Method and system for reducing turbo lag in an engine
  • Method and system for reducing turbo lag in an engine
  • Method and system for reducing turbo lag in an engine

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 the sake of clarity, the same reference numbers will be used throughout the drawings to identify similar elements. As used herein, at least one of the phrases A, B, and C should be construed as 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.

[0047] As used herein, the term module refers to application specific integrated circuits (ASICs), electronic circuits, processors (shared, dedicated, or grouped) that execute one or more software programs or firmware programs, and memory, combinational logic circuits , and / or other suitable components that provide the described functionality.

[0048] now refer to figure 1 , a functional block diagram of an exemplary engine system 100 is prese...

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PUM

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Abstract

The invention relates to a method and system for reducing turbo lag in an engine. A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a turbo boost level module that determines a desired boost level based on the driver requested torque. The control module further includes a pulse determination module that determines a primary fuel injection pulsewidth and a secondary fuel injection pulsewidth based on the driver requested torque and the desired boost level and controls a first injection into the cylinder with the primary fuel injection pulsewidth and a second injection into the cylinder with the secondary fuel injection pulsewidth.

Description

technical field [0001] The present invention relates generally to internal combustion engines, and more particularly to reducing lag from turbochargers. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the invention. The work of the presently named inventors to the extent described in this Background section, and aspects of this description that may not constitute prior art at the time of filing, are neither expressly nor implied Inventions that counteract the prior art. [0003] Internal combustion engines combust an air and fuel mixture in cylinders to drive pistons, which produce drive torque. Air flow into a gasoline engine is regulated by a throttle. More specifically, the throttle adjusts the throttle area to increase or decrease the flow of air into the engine. As the throttle area increases, air flow into the engine increases. The fuel control system adjusts the rate of injected fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/02
CPCF02B2039/168F02D41/0007F02D41/10F02D41/405F02D2250/18F02D2250/38Y02T10/12Y02T10/40
Inventor L·C·沃克B·J·宋Z·S·刘
Owner GM GLOBAL TECH OPERATIONS LLC
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