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

Control method of diesel engine intake swirl

A control method and technology for diesel engines, applied in electrical control, engine control, fuel injection control, etc., can solve the problem of not quickly and accurately controlling the eddy current intensity, and achieve the effect of improving control accuracy and response speed.

Inactive Publication Date: 2010-06-09
CHERY AUTOMOBILE CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no control method for the diesel engine intake swirl that can quickly and accurately control the swirl intensity to meet the mixed gas combustion requirements of the diesel engine under various operating 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
  • Control method of diesel engine intake swirl
  • Control method of diesel engine intake swirl
  • Control method of diesel engine intake swirl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Such as figure 1 As shown, the control system of the diesel engine intake vortex that implements the control method of the present invention comprises ECU i.e. electronic control unit 1, engine speed information acquisition unit (not shown in the figure), engine injection fuel quantity information acquisition unit (not shown in the figure) drawn), a vortex valve controller consisting of vacuum valve 2 and variable vortex vacuum valve 3, a vortex valve pull rod 4, a vortex valve position sensor 7 and a vortex valve 6 assembled in the intake manifold 5, the electric The control unit 1 receives the engine speed f1 from the engine speed information collection unit and the injection oil quantity f2 from the engine injection oil quantity information collection unit, and outputs the swirl valve control amount to the vacuum valve 2, and the vacuum valve 2 further controls the variable swirl vacuum valve 3, The opening of the swirl valve 6 is controlled by the swirl valve pull r...

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

The invention aims at providing a control method of air inletting vortex of a diesel engine; the method can control the vortex intensity fast and accurately so as to meet the requirement of the dieselengine under various working conditions; the control method of the invention essentially comprises the following steps: the control amount of open-loop and the control amount of closed-loop of the vortex are determined according to the operating working condition of the engine and the control mode of the vortex is selected; if the open-loop control mode is adopted, the control amount of the open-loop is directly used for adjusting a vortex valve; if the control modes of the open-loop and the closed-loop are adopted, the control amount of the open-loop and the control amount of the closed-loopare added to adjust the vortex valve. The method combines the control mode of the open-loop and the control mode of the closed-loop; and a self-adapting calculating method is adopted in the control modes of the open-loop and the closed-loop, thus leading the vortex intensity to response the requirement of mixed fuel gas burning fast and accurately being compatible with the power, economic efficiency and environmental protection requirement of the engine, and guaranteeing good comfortableness of driving and being applicable to the requirement of the modern automobile.

Description

technical field [0001] The invention relates to a method for controlling the intake vortex of a diesel engine. Background technique [0002] The diesel engine is a compression ignition engine. During the compression ignition process, the fuel oil jet is mixed with air to form a combustible mixture. As the temperature of the compressed air in the cylinder rises, the combustible mixture is compressed and ignited. A well-mixed mixture can make the combustion complete, reduce the generation of pollutants such as soot particles, and is also conducive to improving the combustion efficiency of fuel, and improving the power and economy of diesel engines. However, it is difficult to ensure good mixing of fuel and air only by the atomization of diesel oil. Generally, measures such as air vortex are needed to promote the mixing of fuel and air. The vortex will affect the uniformity of the fuel oil jet mixed with the air and the distribution in various areas in the cylinder, thereby af...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/04F02D41/14F02D41/24
CPCY02T10/146F02D2041/0022Y02T10/42F02B31/06F02D2041/142F02D2041/0015F02D2041/141F02D41/1402F02D41/0002Y02T10/12Y02T10/40
Inventor 周重光吴培周王秋霞
Owner CHERY AUTOMOBILE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com