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

Control method and system for improving combustion stability of gasoline compression ignition under low load conditions

A technology of combustion stability and control method, applied in the directions of fuel injection control, electrical control, charging system, etc., can solve problems such as combustion instability, improve combustion stability, increase the temperature of the mixture in the cylinder, and early flame merging Effect

Active Publication Date: 2022-02-11
SHANDONG UNIV OF TECH
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a method for improving the combustion stability of the gasoline compression ignition combustion mode under small load conditions, and to solve the problem of combustion instability of the current gasoline compression ignition combustion mode under small load conditions. Control method and system for improving combustion stability of gasoline compression ignition under low load 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 and system for improving combustion stability of gasoline compression ignition under low load conditions
  • Control method and system for improving combustion stability of gasoline compression ignition under low load conditions
  • Control method and system for improving combustion stability of gasoline compression ignition under low load conditions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] Figure 1~6 It is the best embodiment of the present invention, below in conjunction with attached Figure 1~6 The present invention will be further described.

[0053] Such as figure 1 As shown, the control system for improving the combustion stability of gasoline compression ignition under low load conditions (hereinafter referred to as the control system) includes: an engine 16, a variable valve 15 is installed in the engine 16, and the exhaust of the engine 16 is controlled by the variable valve 15. The closing of the door creates a negative valve overlap angle. An in-cylinder pressure sensor 13 and an in-cylinder direct injection fuel injector 14 are installed in each cylinder of the variable valve 15 . Each cylinder intake port of the variable valve 15 is connected with the intake manifold, and all the intake manifolds are connected with the intake pipe of the engine 16 . The in-cylinder pressure sensor 13 is connected to the combustion analyzer 10 through a c...

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 relates to a control method and system for improving the combustion stability of gasoline compression ignition under low-load conditions, belonging to the technical field of engines. It is characterized in that: the main air intake pipe (8) is connected with the intake heater (3) and the intake flow control valve (5) at the same time, and the intake heater (3) is connected in series with the intake heater flow control valve (2) The intake air flow control valve (5) is connected to the engine (16), and the in-cylinder pressure sensor (13) and in-cylinder direct injection injector (14) are installed in the variable valve (15), and the air intake heater flow control valve (2), intake heater (3), intake flow control valve (5), in-cylinder direct injection injector (14) and variable valve (15) are connected with the on-board computer (9). Through the control method and system for improving the combustion stability of gasoline compression ignition combustion under small load conditions, the combustion stability of gasoline compression ignition combustion mode under low load conditions is improved, and the problem of unstable combustion under low load conditions of gasoline compression ignition combustion mode is solved. .

Description

technical field [0001] The invention relates to a control method and system for improving the combustion stability of gasoline compression ignition under low-load conditions, belonging to the technical field of engines. Background technique [0002] With the rapid development of the national economy, the demand for engines in transportation, industry, agriculture and other industries continues to expand, and the negative effects of engines on energy and the environment are becoming increasingly prominent. The dual crises of energy and environment have forced domestic and foreign researchers to devote themselves to exploring technical means to achieve efficient and clean combustion of engines, so as to meet the increasingly stringent energy consumption and emission regulations. [0003] In recent years, new combustion methods characterized by "premixed, low-temperature combustion" have developed rapidly. Among them, the gasoline compression ignition (GCI) combustion method us...

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): F02D41/30F02D41/40F02D41/38F02D41/00F02D41/14F02D13/02F02M31/04F02M31/08F02D35/02F02B39/12
CPCF02D41/3017F02D41/3035F02D41/0002F02D41/0007F02D41/402F02D41/14F02D41/144F02D41/1441F02D41/3058F02D13/0249F02D13/0265F02D35/023F02M31/042F02M31/08F02B39/12F02D2200/101F02D2200/602F02D2041/001F02D2041/389F02D2200/0414F02D2200/0406Y02T10/12
Inventor 杨彬彬刘蕾蕾贾寿珂巩倞妤
Owner SHANDONG UNIV OF TECH
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