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

Control device for spark-ignition engine

A spark ignition type, control device technology, applied in the direction of engine control, engine components, combustion engines, etc., can solve the problems of the mixture ignition and combustion stability degradation

Inactive Publication Date: 2015-11-25
MAZDA MOTOR CORP
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And there is a problem that, for example, when the engine is running cold when E100 is used, the ignitability and / or combustion stability of the air-fuel mixture will be deteriorated due to a decrease in the vaporization rate.
Especially, when using E100 which contains water, this problem will be significant

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 device for spark-ignition engine
  • Control device for spark-ignition engine
  • Control device for spark-ignition engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050]Next, embodiments of a spark ignition engine will be described with reference to the drawings. It should be noted that the following descriptions of the preferred embodiments are only for illustration. Such as figure 1 As shown, the engine system includes an engine (engine main body) 1, various actuators and various sensors attached to the engine 1, and an engine controller 100 that controls the actuators based on signals from the sensors. The engine system includes a high compression ratio engine 1 with a geometric compression ratio of 12 to 20 (for example, 12).

[0051] The engine 1 is a spark ignition four-stroke internal combustion engine, and has a total of four cylinders 11 from the first to the fourth arranged in-line, but in figure 1 Only one cylinder is shown in the figure. However, the engines to which the technology disclosed herein can be applied are not limited to inline four-cylinder engines. The engine 1 is mounted on a vehicle such as an automobile...

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

When an engine main body (an engine (1)) is at a low temperature, that is, when the temperature of the engine main body is equal to or less than a prescribe temperature, and the load on the engine main body is equal to or greater than a prescribed load, a controller (an engine controller (100)) supplies fuel to an air cylinder (11) during a period from the intake stroke to the compression stroke. When the concentration of a special fuel in the fuel is higher than a prescribed concentration, the controller sets the amount of fuel injected by a fuel injection valve (53) during the compression stroke so as to be greater than the amount of fuel injected during an intake stroke, and when the concentration of the special fuel in the fuel is equal to or less than the prescribed concentration, the controller sets the amount of fuel injected during the intake stroke so as to be greater than the amount of fuel injected during the compression stroke.

Description

technical field [0001] The technology disclosed herein relates to a control device for a spark ignition engine, and more particularly, to a control device for a spark ignition engine that is configured to include a temperature below a specified temperature. The engine is supplied with at least one of special fuel having a vaporization rate lower than gasoline and gasoline. Background technique [0002] In recent years, from the viewpoint of environmental problems such as global warming, biofuels have been attracting attention, and FFVs (Flexible Fuel Vehicles, flexible fuel vehicles) that can run on fuels that mix gasoline and, for example, bioethanol at any mixing ratio are constantly being applied in practice. The concentration range of ethanol in the fuel used by FFV is different due to the different mixing ratios of gasoline and ethanol in the fuel circulated on the market. Or from E0 (gasoline 100%) to E85 (gasoline 15%, ethanol 85%). In addition, the E100 mentioned ...

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 Applications(China)
IPC IPC(8): F02D41/06F02D19/08F02D41/02
CPCF02D19/084F02D41/0025F02D41/06F02D41/068F02D41/402Y02T10/44F02D19/085F02D41/401F02D2200/0612Y02T10/30Y02T10/40F02B17/005F02D41/0002F02D41/26F02D41/40F02M61/04F02M61/14
Inventor 安田京平西尾贵史
Owner MAZDA MOTOR CORP
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