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

Control devices for spark ignition engines

A spark ignition type, control device technology, applied in the direction of spark ignition controller, engine control, engine ignition, etc., can solve problems such as pressure rise, combustion noise increase, etc., to avoid increase, reduce exhaust temperature, avoid Effects of premature ignition

Inactive Publication Date: 2016-03-23
MAZDA MOTOR CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compression ignition combustion is a combustion in which the pressure rises sharply as the engine load increases, leading to an increase in combustion noise

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 devices for spark ignition engines
  • Control devices for spark ignition engines
  • Control devices for spark ignition engines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Embodiments of the spark ignition type direct injection engine will be described below based on the drawings. The following descriptions of preferred embodiments are exemplifications. figure 1 , figure 2 The schematic structure of the engine (engine main body) 1 is shown. The engine 1 is a spark ignition type gasoline engine mounted on a vehicle and supplied with fuel containing at least gasoline. The engine 1 has a cylinder block 11 provided with a plurality of cylinders 18 (in addition, although in figure 1 Although only one cylinder is shown in the figure, for example, four cylinders may be arranged in-line), a cylinder head 12 provided on the cylinder block 11, and an oil bottom provided on the lower side of the cylinder block 11 for storing lubricating oil Shell 13. A piston 14 connected to the crankshaft 15 via a connecting rod 142 is inserted into each cylinder 18 so as to reciprocate. On the top surface of the piston 14, such as image 3 As shown enlarged...

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 present invention relates to a control device of a spark ignition type engine. The control device (10) switches from a spark ignition mode in which spark ignition combustion in which the air-fuel mixture is ignited by driving a spark plug (25) to burn the air-fuel mixture to a compression ignition mode in which compression-ignition combustion in which the air-fuel mixture is burned by auto-ignition is executed In the mode, a transition mode in which the in-cylinder temperature is forcibly lowered and combustion is performed is executed.

Description

technical field [0001] The technology disclosed herein relates to a control device for a spark ignition engine. Background technique [0002] For example, as described in Patent Document 1, as a technique for achieving both improvement in exhaust emission performance and improvement in thermal efficiency, a combustion form in which air-fuel mixture in a cylinder is compressed and ignited is known. However, compression ignition combustion is a combustion in which the pressure rises violently as the load on the engine increases, resulting in an increase in combustion noise. Therefore, as also described in Patent Document 1, even in an engine that performs compression ignition combustion, in a high load side operating region, compression ignition combustion is generally not performed, but spark ignition combustion driven by a spark plug is performed. [0003] Patent Document 2 describes that, in the same way as the engine of Patent Document 1, in an engine that performs compre...

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): F02D41/30
CPCF02D41/0057F02D41/3023F02D41/3035F02D41/3064F02D41/402F02P5/1504F02D13/0207F02D2041/001F02D2041/3052Y02T10/12Y02T10/40F02D41/3011
Inventor 高桥敏彰田贺淳一岩井浩平
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