Notice of Retraction: Combustion characteristics of test and research on electronic control fuel injection system of cars GDI engine

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

Mathematical Problems in Engineering ◽

10.1155/2020/2803545 ◽

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.

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An Experimental Study on Fuel Injection System and Emission of a Small GDI Engine

2006 2nd IEEE/ASME International Conference on Mechatronics and Embedded Systems and Applications ◽

10.1109/mesa.2006.296988 ◽

2006 ◽

Cited By ~ 3

Author(s):

A. Jiangjian ◽

B. Gao Xiyan ◽

C. Yao Chunde

Keyword(s):

Experimental Study ◽

Fuel Injection ◽

Injection System ◽

Fuel Injection System ◽

Gdi Engine

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Development and Optimization System of Vehicle Electronic Fuel Injection

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.602-605.1512 ◽

2014 ◽

Vol 602-605 ◽

pp. 1512-1517

Author(s):

Ke Cheng Tan ◽

Guan Neng Xu

Keyword(s):

Gasoline Engine ◽

Fuel Injection ◽

The Other ◽

Injection System ◽

Fuel Injection System ◽

Electronic Control ◽

Design And Development ◽

Optimization System

Based on the establishment of a system of electronic control gasoline engine, we try to develop and optimize a set of electronic control fuel injection system which aims at the LJ462Q gasoline engine. At the same time, we can provide the beneficial reference for the other similar product’s design and development.

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Electronic Control Unit Design for a Retrofit Fuel Injection System of a 4-Stroke 1-Cylinder Small Engine

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.229-231.968 ◽

2012 ◽

Vol 229-231 ◽

pp. 968-972 ◽

Cited By ~ 2

Author(s):

Mohd Taufiq Muslim ◽

Hazlina Selamat ◽

Ahmad Jais Alimin ◽

Mohd Faisal Hushim

Keyword(s):

Fuel Injection ◽

Electronic Control Unit ◽

Control Unit ◽

Injection System ◽

Operating Efficiency ◽

Fuel Injection System ◽

Electronic Control ◽

Delivery Method ◽

Fuel Delivery ◽

Unit Design

Most motorcycles in developing countries use carburetor systems as the fuel delivery method especially for models with the cubic capacity of less than 125cc. However, small gasoline fuelled engines operating using carburetor system suffer from low operating efficiency, waste of fuel and produce higher level of hazardous emissions to the environment. In this study, an electronic control unit (ECU) is designed and simulated for a retrofit fuel injection (FIS) system. The ECU is targeted to have a simple design, reliable and offers all of the necessary functions of the modern ECU. The simulation results shows that the designed ECU can determine the injection period as close to the proposed value and can drive the injector efficiently based on the generated PWM pulse.

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