Flatness-Based Feedback Control of an Automotive Solenoid Valve

Chung, S.K.; Koch, Charles Robert; Lynch, Alan F.

doi:10.1109/tcst.2006.886440

Cited by 59 publications

(41 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ma et al [17], Shamdani et al [18], and Bianchi et al [19] determined the influencing relation of drive current and air gap on electromagnetic force by a polynomial fit technique based on test data of the static electromagnetic force. Wang et al [20] and Chung et al [21] considered the magnetic saturation characteristics of an HSV by adjusting the coefficient of the fitting formula to limit the maximum electromagnetic force of the valve. Huber and Ulbrich [22] and Chung et al [23] developed a dynamic characteristic mathematical model for the common rail injector.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Electromagnetic Models of High-Speed Solenoid Valve for Common Rail Injector

Zhao

Fan

Liu

et al. 2017

Mathematical Problems in Engineering

View full text Add to dashboard Cite

A novel formula easily applied with high precision is proposed in this paper to fit the -curve of soft magnetic materials, and it is validated by comparison with predicted and experimental results. It can accurately describe the nonlinear magnetization process and magnetic saturation characteristics of soft magnetic materials. Based on the electromagnetic transient coupling principle, an electromagnetic mathematical model of a high-speed solenoid valve (HSV) is developed in Fortran language that takes the saturation phenomena of the electromagnetic force into consideration. The accuracy of the model is validated by the comparison of the simulated and experimental static electromagnetic forces. Through experiment, it is concluded that the increase of the drive current is conducive to improving the electromagnetic energy conversion efficiency of the HSV at a low drive current, but it has little effect at a high drive current. Through simulation, it is discovered that the electromagnetic energy conversion characteristics of the HSV are affected by the drive current and the total reluctance, consisting of the gap reluctance and the reluctance of the iron core and armature soft magnetic materials. These two influence factors, within the scope of the different drive currents, have different contribution rates to the electromagnetic energy conversion efficiency.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigation on Electromagnetic Models of High-Speed Solenoid Valve for Common Rail Injector

Zhao

Fan

Liu

et al. 2017

Mathematical Problems in Engineering

View full text Add to dashboard Cite

show abstract

“…The solubility of nitrogen mainly depended upon the composition of alloy and partial pressure of nitrogen. For instance, the addition of manganese, chromium, molybdenum and vanadium increased the solubility of nitrogen whereas the addition of carbon, silicon and copper decreased it [1,2]. The excellent nitrogen solubility was obtained by reducing the melting temperature and by increasing the nitrogen pressure.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Nitrogen as an Alloying Element in WC9 Grade Steel

Vishnuh

Sudhakar

Tamilarasu

et al. 2017

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

In the present work the effect of nitrogen on WC9 alloy at various weight percentages was analyzed and tested for their microstructural and mechanical properties. The nitrogen was added at 0.05, 0.10, 0.15, 0.20 and 0.25 wt. % in the solid form as nitrided ferrochrome to WC9 alloy. The samples were heat treated by solution annealing process at a temperature of 1100°C for 5 hours to improve the austenitic formation. Microstructures and mechanical properties such as tensile strength, yield strength, hardness, % elongation and % reduction of WC9-N alloy were examined. It was observed that increasing nitrogen wt. % increases the mechanical properties. The obtained mechanical properties were compared with base WC9 and C12A grade steel, where it was found to be replacement for C12A grade steel at its composition at lower end. The material cost analysis for WC9-N and C12A grade steel was done and both were compared.

show abstract

“…The flatness approach is used in the open loop control of the system and this control balances the system between two equilibrium points and thanks to the flatness based controller, the transition between the equilibriums is performed faster and smoother with less oscillation and overshoot. The control of an automotive solenoid valve which is used for the gas exchange in combustion engines is investigated in study [9] and flatness based feedback control is compared with a PI controller. As a result of the study the flatness based control presents a robust performance though it is activated later in the valve motion than PI controller, the reference velocity of the armature is being followed with a smaller error with the flatness based controller than the PI controller.…”

Section: Introductionmentioning

confidence: 99%

A non-linear model based feed forward flatness control approach to speed governor systems of hydropower plants

Koşalay

Özkaya

2017

Teh. vjesn.

View full text Add to dashboard Cite

A NON-LINEAR MODEL BASED FEED FORWARD FLATNESS CONTROL APPROACH TO SPEED GOVERNOR SYSTEMS OF HYDROPOWER PLANTS İlhan Koşalay, Derya ÖzkayaProfessional paper This study is a part of a refurbishment project, which renews the hydro-mechanical speed governor of a hydroelectric power plant (HEPP) with a new digital one. Based on the previous study of the project, which covers the validation of the HEPP model, the simulation studies implemented in Matlab/Simulink environment are conducted to design the best controller philosophy for the digital speed governor controller. In order to be able to give satisfactory response to the load frequency control of the power system, the speed governor should respond to the set point changes as quickly as possible within the safe margins. In order to compensate unsatisfactory performance indices of conventional proportional-integral (PI) controller, a new controller based on the differential flatness theory is designed. The new controller is constructed by adding on a flatness-based feed forward part to the existing PI feedback controller, which results in improved performance compared to the conventional PI controller. Keywords: flatness-based controller; hydroelectric power plant modelling; load frequency control; speed governor Pristup reguliranju ravnomjernosti s unaprijednom spregom sustava regulatora brzine hidroelektrana zasnovan na nelinearnom modeluStručni članak Ovo istraživanje je dio projekta sanacije kojim se hidro-mehanički regulator brzine hidroelektrane (HEPP) zamjenjuje s novim, digitalnim. Na temelju ranijeg istraživanja procjene HEPP modela, simulacijska istraživanja u Matlab/Simulink okruženju provedena su u svrhu razvijanja najbolje filozofije za proizvodnju digitalnog regulatora brzine. Kako bi se moglo ponuditi odgovarajuće rješenje za reguliranje učestalosti punjenja energetskog sustava, regulator brzine bi u okviru dopuštenih granica trebao što brže reagirati na zadane promjene. U svrhu kompenzacije pokazatelja nezadovoljavajuće performanse uobičajenog proporcionalno-integralnog (PI) regulatora, konstruiran je novi regulator zasnovan na teoriji diferencijalne ravnomjernosti. Novi je regulator konstruiran dodavanjem postojećem PI regulatoru povratne sprege na ravnomjernosti zasnovan dio unaprijedne sprege. Rezultat je bolji rad nego s konvencionalnim PI regulatorom.Ključne riječi: modeliranje hidroelektrane; regulator brzine; regulator brzine punjenja; regulator zasnovan na ravnomjernosti

show abstract

Flatness-Based Feedback Control of an Automotive Solenoid Valve

Cited by 59 publications

References 15 publications

Investigation on Electromagnetic Models of High-Speed Solenoid Valve for Common Rail Injector

Investigation on Electromagnetic Models of High-Speed Solenoid Valve for Common Rail Injector

Experimental Analysis of Nitrogen as an Alloying Element in WC9 Grade Steel

A non-linear model based feed forward flatness control approach to speed governor systems of hydropower plants

Contact Info

Product

Resources

About