Algorithmical provision of fuel supply control under the conditions of incomplete information
DOI:
https://doi.org/10.31649/mccs2022.07Keywords:
hardware, computer control system, algorithm support, measuring transducer, application software, frequency-modulated signal, uncertaintly, speedAbstract
An indirect method for assessing the identity of power unit operating cycles is proposed. The frequency-modulated signal of the speed of rotation of the crankshaft is chosen as a source of input information. With the use of nozzles that have piezoelectric control means, the conceptual principles of software movements of hardware devices to ensure the identity of work cycles have been developed. Direct digital control and feedback control methods are used to design the hardware architecture. The torque of an individual cylinder was approximated on the basis of the Fourier transform taking into account the sequence of their work. A mechanical system with four degrees of freedom is proposed as a deterministic mathematical model of the torque circuit of the power unit. The movements of the masses of the model are described by a system of differential equations, provided that friction is taken into account. The parameters of the system are normalized and the Laplace transform under zero initial conditions is used for its solution. The information links between the torques and the measurement information signal were established using the method of determinants and the theory of signal graphs. It was found that these methods give almost identical calculation results. Algorithmic support for assessing the identity of work cycles is built on the solution of a redefined system of algebraic equations with optimization of the result based on the method of least squares. The Monte Carlo method was used as a mathematical tool for the computer simulation of random disturbances. Computer modeling of the effects of interference on the measurement information signal and on the phase delays of individual cylinders established the requirements for the metrological characteristics of the hardware
References
Challen B., Baranescu R. Diesel Engine Reference Book. Butterworth-Heinemann, 1999. 682 p.
Gawande S., Navale L., Nandgaonkar M., Butala D., Kunamalla S. Cylinder Imbalance Detection of Six Cylinder DI Diesel Engine Using Pressure Variation. International Journal of Engineering Science and Technology. 2010. Vol. 2(3). Pp. 433-441.
Gawande S., Navale L., Nandgaonkar M., Butala D. Harmonic Frequency Analysis of Multi-Cylinder Inline Diesel Engine Genset for Detecting Imbalance. International Review of Mechanical Engineering. 2009. Vol. 3. No 6. Pp. 782-787.
Bilyk S., Bozhko E. Analysis of methods and methods of diagnosing internal combustion engines by non-assembly control methods. Bulletin of the National Technical University "KhPI". Series: New solutions in modern technology. – Kharkiv: NTU "KhPI", 2021, no. 4(10), pp. 3-8, doi:10.20998/2413-4295.2021.04.01.
Sivyakov B.K., Truber S.S. Diagnostika na mnogotsilindrovi dvigateli s pomoshtta na neravnomernost na chestotata na vŭrtene Vestnik SGTU. - 2010. - № 1 (44). - S. 76 - 82.
Marchenko B.G., Mislovich M.V. Diagnostika na tsilindro-butalnata grupa na dizel-elektricheski generator chrez neravnomerno vŭrtene na negoviya val: chast 1. Tekhnicheska elektrodinamika. 1998. № 5. S. 36-40.
Pokusaev M. N., Sibiryakov K. O., Shevchenko A. V. Eksperimentalno opredelyane na stepenta na neravnomerno vŭrtene na vala na mashinno-zadvizhvashtiya kompleks na koraba pr. 1557. Vestnik ASTU. 2008. № 2 (43). str. 140–144.
Grebennikov S. A., Grebennikov A. S., Nikitin A. V. Adaptivno upravlenie na zakhranvaneto s gorivo na dvigatelya s vŭtreshno gorene vŭz osnova na pokazatelite za neravnomerno vŭrtene na kolyanoviya val. Byuletin na SSTU. 2013. № 2 (71). str. 80 - 83.
Bashirov R. M., Insafudinov S. Z., Safin F. R. Neravnomerno podavane na gorivo v dizelovi dvigateli: problemi i metodi za tyakhnoto reshavane. Izvestiya OGAU. 2019. № 1(75). str. 78-82.
Bodnar B.Ê., Ochkasov O.B., Chernyaev D.V. Prisvoyavane na metoda za filtrirane na signala za neravnomernata chestota na obvivane na kolyanoviya val na dizelov dvigatel // Byuletin na Dnepropetrovskiya natsionalen universitet po zhelezopŭten transport. - 2013. - VIP. 1 (43). - S. 113 - 118.
Enikeev A. F., Borisenko A. N., Samsonov V. P., Kiseleva G. M. Diagnosis of a diesel generator by the deviation in shaft speed. Measurement techniques USSR. 1988. Volume: 31. Issue: 9. Pages: 868-871. DOI: 10.1007/BF00863884.
Yenikieiev O., Scherbak L. Information technology for protecting diesel-electric station reliable operation. Tekhnichna El-ektrodynamika. – 2019. No 4. Pp. 85-91. http://dx.doi.org/10.15407/techned2019.04.085
Ayasun S, Nwankpa C.O. Transformer tests using MATLAB/Simulink and their integration into undergraduate electric machinery courses. Online ISSN:1099-0542 Wiley Periodicals, Inc. Comput Appl Eng Educ, Vol. 14, No.2, 2006, pp. 142–150. DOI 10.1002/cae.20077.
Yenikieiev O., Zakharenkov D., Gasanov M., Yevsyukova F., Naboka O., Ruzmetov A. Improving the Productivity of In-formation Technology for Processing Indirect Measurement Data. International Conference on Reliable Systems Engineering (ICoRSE) – 2022. Pp 80–94. DOI: 10.1007/978-3-031-15944-2_8.
Bendat D., Pirsol A. Prilozheniya na korelatsionen i spektralen analiz. Moskva: Mir, 1983. 312 s.
