Optimization of Operating Parameters for Stable and High Operating Performance of a GDI Fuel Injector System

Tsai, Wen-Chang

doi:10.3390/en13102405

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…In the internal-combustion engine, the injector is an electro-magnetic valve used to dispense fuel either into the intake manifold or directly into the combustion chamber [22][23][24]. The latter case usually guarantees better power performance and lower consumption, and it corresponds to spark-ignition engines with gasoline direct injection (GDI) or diesel engines with common-rail direct injection (CRDI).…”

Section: Injector and Igniter Signalsmentioning

confidence: 99%

CMOS Interface Circuits for High-Voltage Automotive Signals

Boni

Caselli

Magnanini³

et al. 2022

Electronics

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The acquisition of high-voltage signals from sensors and actuators in an internal-combustion engine is often required for diagnostic purposes or in the case of conversion to alternative fuels, such as hydrogen, natural gas, or biogas. The integration of electronic interfaces and acquisition circuits in a single device provides benefits in terms of component-count reduction and performance. Nonetheless, the high voltage level of the involved signals makes on-chip design challenging. Additionally, the circuits should be compatible with the CMOS technology, with limited use of high-voltage options and a minimum number of off-chip components. This paper describes the design and the implementation in 350 nm CMOS technology of electronic interfaces and acquisition circuits for typical high-voltage signals of automotive context. In particular, a novel co-design of dedicated voltage clamps with electro-static discharge (ESD) protections is described. The proposed circuits require only a single off-chip resistor, and they are suitable for the acquisition of signals with peak voltages up to 400 V. The measured performance of the silicon prototypes, in the [−40 °C, +125 °C] temperature range, make the proposed electronic interfaces suitable for the automotive domain.

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Section: Injector and Igniter Signalsmentioning

confidence: 99%

CMOS Interface Circuits for High-Voltage Automotive Signals

Boni

Caselli

Magnanini³

et al. 2022

Electronics

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“…An analysis of relation (9) shows that values of the system degradation z k depend on 2n parameters included inp ∈ R 2n . It should be underlined that for numerous practical applications the number of degradation classes n is rather small.…”

Section: T-s-based Historical Data Approachmentioning

confidence: 99%

“…Apart from the above facts, the research results presented in this paper are motivated by a wide application of MOSFETs in such systems as in, e.g., DC-DC converters [3], wind turbines [7,8], fuel injectors [9], buck converters for photovoltaic panels [10], etc. Thus, the knowledge about MOSFETs' current health status is of paramount importance for the entire system reliability.…”

Section: Introductionmentioning

confidence: 99%

Remaining Useful Life Prediction of MOSFETs via the Takagi–Sugeno Framework

2021

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The paper presents a new method of predicting the remaining useful life of technical devices. The proposed soft computing approach bridges the gap between analytical and data-driven health prognostic approaches. Whilst the former ones are based on the classical exponential shape of degradation, the latter ones learn the degradation behavior from the observed historical data. As a result of the proposed fusion, a practical method for calculating components’ remaining useful life is proposed. Contrarily to the approaches presented in the literature, the proposed ensemble of analytical and data-driven approaches forms the uncertainty interval containing an expected remaining useful life. In particular, a Takagi–Sugeno multiple models-based framework is used as a data-driven approach while an exponential curve fitting on-line approach serves as an analytical one. Unlike conventional data-driven methods, the proposed approach is designed on the basis of the historical data that apart from learning is also applied to support the diagnostic decisions. Finally, the entire scheme is used to predict power Metal Oxide Field Effect Transistors’ (MOSFETs) health status. The status of the currently operating MOSFET is determined taking into consideration the knowledge obtained from the preceding MOSFETs, which went through the run-to-failure process. Finally, the proposed approach is validated with the application of real data obtained from the NASA Ames Prognostics Data Repository.

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“…The fuel pressure in the control chamber is reduced, and due to the pressure difference between the fuel tank and the control chamber, the acting force on the needle is greater than the sum of the force of the control chamber fuel pressure and the spring preload. The needle valve rises to open the injector nozzle and the fuel is sprayed out [ 11 ]. Variations in mechanical, electromagnetic and hydraulic characteristics of the injector have impacts on the fuel injection quantity, fuel injection consistency and spray characteristics of the injector [ 12 , 13 ].…”

Section: Working Principlementioning

confidence: 99%

A Hybrid Taguchi-Regression Algorithm for a Fuel Injection Control System

Tsai

2021

Sensors

Self Cite

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The fuel injection system is one of the key components of an in-cylinder direct injection engine. Its performance directly affects the economy, power and emission of the engine. Previous research found that the Taguchi method can be used to optimize the fuel injection map and operation parameters of the injection system. The electronic control injector was able to steadily control the operation performance of a high-pressure fuel injection system, but its control was not accurate enough. This paper conducts an experimental analysis for the fuel injection quantity of DI injectors using the Taguchi-Regression approach, and provides a decision-making analysis to improve the design of electronic elements for the driving circuit. In order to develop a more stable and energy-saving driver, a functional experiment was carried out. The hybrid Taguchi-regression algorithm for injection quantity of a direct injection injector was examined to verify the feasibility of the proposed algorithm. This paper also introduces the development of a high-pressure fuel injection system and provides a new theoretical basis for optimizing the performance of an in-cylinder gasoline direct injection engine. Finally, a simulation study for the fuel injection control system was carried out under the environment of MATLAB/Simulink to validate the theoretical concepts.

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Optimization of Operating Parameters for Stable and High Operating Performance of a GDI Fuel Injector System

Cited by 5 publications

References 17 publications

CMOS Interface Circuits for High-Voltage Automotive Signals

CMOS Interface Circuits for High-Voltage Automotive Signals

Remaining Useful Life Prediction of MOSFETs via the Takagi–Sugeno Framework

A Hybrid Taguchi-Regression Algorithm for a Fuel Injection Control System

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