scholarly journals Analysis on Dynamic Response Characteristics of High-Speed Solenoid Valve for Electronic Control Fuel Injection System

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Jianyu Zhang ◽  
Peng Liu ◽  
Liyun Fan ◽  
Yajie Deng
Keyword(s):  
Dynamic Response ◽  
High Speed ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Electronic Control ◽  
Response Characteristics ◽  
Valve Stem ◽  
Dynamic Response Characteristics ◽  
Residual Air

A 3D numerical simulation model of high-speed solenoid valve (HSV) for electronic control fuel injection system (ECFIS) has been developed. The model has been validated experimentally with acceptable maximum errors of 2% and 8.7% in closure response time and open response time, respectively. Effect of assembly parameters such as residual air gap, maximum lift of valve stem, mass of the moving parts, spring stiffness, and spring pretightening force on dynamic response characteristics of HSV has been analyzed in detail using the simulation model, and influence rules of various parameters on dynamic response characteristics have been established. Moreover, the correlation between interaction factors of main influence factors and dynamic response characteristics of HSV has also been analyzed. It is concluded that residual air gap, maximum lift of the valve stem, and spring pretightening force are the main influencing factors on dynamic response characteristics of HSV, and there are obvious interaction effects between them; when two or three of these main influencing factors are adjusted at the same time, the interaction effects should be considered.

The Theoretical Analysis and Optimization of the Fuel Injection Drive Circuit for Diesel Engine

2015 ◽  
Vol 742 ◽  
pp. 758-767
Author(s):  
Jian Guo Bu ◽  
Ming Zhou ◽  
Ge Dong ◽  
Guang Shuo Feng
Keyword(s):  
Energy Recovery ◽  
High Speed ◽  
Optimization Design ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Electronic Control ◽  
Drive Circuit ◽  
Off Time ◽  
Speed Response

In order to achieve different response indifferent moment of fuel Injection Solenoid, a driving mode of Peak&Hold is generally applied to electronic control fuel injection system of the diesel engine. The theoretical analysis of high speed response and duplicate supply drive circuit based on the energy recovery is made, and a theoretical guidance for optimization design is presented. According to an electronic unit pump developed by ourselves, the optimization design of drive circuit for the fuel injection system is done. The results showed that during the process of injection, the time of current of solenoid valve form 0 to 20A is 224, and the turn-off time is 120which is a little longer than that of the high speed circuit based on the avalanche. And the turn-off time is met the requirement of control precision. With many advantages, such as energy saving and heat reducing, the high speed response and duplicate supply drive circuit based on the energy recovery will become a good choice in electronic control fuel injection system.

Fuel Injection System for a High Speed One Cylinder S.I.Engine

2001 ◽  
Author(s):  
Göran Almkvist ◽  
Tomas Karlsson ◽  
Styrbjörn Gren ◽  
Jörgen Bengtsson ◽  
Conny Andersson ◽  
...  
Keyword(s):  
High Speed ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System

scholarly journals Electronic Control Fuel Injection System Based on GT-POWER and MotoTron

2017 ◽  
Vol 174 ◽  
pp. 773-779 ◽  
Author(s):  
Chaoyi Wei ◽  
Mengqi Chen ◽  
Yinjing Jiang
Keyword(s):  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Electronic Control

Some Problems Connected with High-Speed Compression-Ignition Engine Development

1932 ◽  
Vol 36 (261) ◽  
pp. 733-787 ◽  
Author(s):  
C. B. Dicksee
Keyword(s):  
High Speed ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Engine Development

In this paper the author does not propose to deal with any particular form or type of engine or fuel-injection system, but to discuss some of the problems which are encountered when engaged on the development of a high-speed compression-ignition engine.The main problems to be solved consist in devising suitable means for utilising to the fullest possible extent the oxygen available within the cylinder and for avoiding the production of smoke and noise and, in so far as it is connected with combustion conditions, smell.

A Procedure for Upgrading an Electronic Control Diesel Fuel Injection System by Considering Several Engine Operating Regimes Simultaneously

1999 ◽  
Vol 121 (1) ◽  
pp. 159-165 ◽  
Author(s):  
B. Kegl
Keyword(s):  
Diesel Fuel ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Electronic Control ◽  
Control Parameters ◽  
Design Variables ◽  
Cam Profile ◽  
Diesel Fuel Injection ◽  
Operating Regimes

This paper describes an optimal design procedure for improving the injection rate histories of an electronic control diesel fuel injection system (ECD-FIS) with sleeve-timing-controlled pump. The research objective was to develop an approach for upgrading an existing ECD-FIS by performing only some low-cost modifications on its design. Therefore, the design variables are related to a relative small number of geometrical and control parameters of the injection system. The geometrical parameters influence only the shape of a rational Be´zier curve, representing the cam profile of the pump. The control parameters influence the injection timing and injection quantity. These control parameters are introduced into the set of design variables in order to enable good results over the whole engine operating regime. The design problem is formulated in a form of a non-linear problem of mathematical programming. Several operating regimes are simultaneously taken into account by an appropriate objective function while some geometrical properties of the cam profile as well as some injection parameters are kept within acceptable limits by the imposed constraints. The theory is illustrated with a numerical example.

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