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Component vibration based cylinder deactivation control system and method

A technology of moving cylinders and cylinders, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve problems such as inappropriate vehicle vibration

Active Publication Date: 2009-07-08
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in some cases, the operation of the engine in cylinder deactivation mode may cause undesired vehicle vibrations

Method used

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  • Component vibration based cylinder deactivation control system and method
  • Component vibration based cylinder deactivation control system and method
  • Component vibration based cylinder deactivation control system and method

Examples

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Embodiment Construction

[0013] The following description is merely exemplary in nature, and is not intended to limit the present disclosure, 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 term module refers to an application-specific integrated circuit (IC), electronic circuit, processor (shared, dedicated, or clustered) and memory that executes one or more software or firmware programs, combinational logic circuits, or Any other suitable device that provides the described functionality.

[0014] see now figure 1 , which schematically shows a typical vehicle 10 . Vehicle 10 may include engine 12 in communication with intake system 14 , fuel system 16 , and ignition system 18 . The engine 12 is selectively operable in an all cylinders mode and a cylinder deactivation mode. The cylinder deactivation mode of engine 12 may generally include operation of engine 12 firing less than all cylinders. F...

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Abstract

The present invention relates to air cylinder stop control system based on component vibrating and method thereof, particularly relates to a method of changing an active cylinder count of an engine may include determining a vehicle vibration limit and a vehicle vibration level. The cylinder count may be modified (increased or decreased) based upon the vehicle vibration limit and the vehicle vibration level. The vehicle vibration limit may be based upon a vehicle speed, and a coolant temperature of the engine. The vehicle vibration level may be based upon at least one of a desired torque of the engine and a number of active cylinders of the engine. According to other features, the vehicle vibration level may be based upon a measured vibration level of a vehicle component.

Description

[0001] Cross References to Related Patents [0001] This application claims the benefit of US Provisional Application No. 61 / 018,956, filed January 4, 2008. The disclosure of the invention of the above application is incorporated herein by reference. technical field [0002] The present disclosure relates to the control of internal combustion engines, and more particularly to a cylinder deactivation control system and method based on component vibration levels. Background technique [0003] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0004] The internal combustion engine is operable in an all-cylinder mode of operation and a cylinder deactivation mode of operation. In such engines, a certain number of cylinders may be deactivated (misfired) during low load conditions. For example, an eight cylinder engine may operate with all eight cylinders during an all cylinders m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D29/02F02D17/02
CPCF02D17/04
Inventor P·E·赖因克
Owner GM GLOBAL TECH OPERATIONS LLC
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