Control of fiat multiair valve-lift system using atmega microcontroller

• Autorzy: Racewicz S. , Olejnik A.

Identyfikatory

DOI

10.5604/01.3001.0010.3083

• Języki publikacji: EN

Abstrakty

EN

The article presents a device based on the ATmega microcontroller for precise Fiat MultiAir valve-lift system control. The Fiat MultiAir system is the patented electromechanical actuation system of the inlet valves. It allows a control of the inlet valves open time for each combustion chamber independently. The described device has been installed in the Fiat 0.9 TwinAir CNG 80 HP internal combustion engine controlled by the ECU Master open motor controller. As the ECU Master Controller software and hardware does not support Fiat’s MultiAir system control, the above-mentioned device had to be designed. The device consists of the ATmega88 microcontroller, which analyses the signals from the shaft and the cam sensors. Then, the DC converter is powering the solenoid valves of the MultiAir system via two transistors. When the solenoid valve is closed, the incompressible hydraulic fluid transmits the inletcam lobe’s motion to the valve as in a traditional engine. When the solenoid valve is open, the oil bypasses the passage, decoupling the valve, which then closes conventionally via spring pressure. In order to find the specific moments of turning the solenoids on and off the measurements on the original Fiat motor controller have been performed. The acquired oscillograms have been analysed and presented in the article. Studied Fiat 0.9 TwinAir engine is a part of the power generation unit and has been coupled with the three-phase electric power generator MeccAlte 16 kW with an AC exciter.

Słowa kluczowe

EN

Fiat MultiAir system; valve-lift system; variable valve timing; open motor controller

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2017
• Tom: Vol. 24, No. 3
• Strony: 229--236
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Racewicz S.

• University of Warmia and Mazury in Olsztyn Department of Mechatronics and Technical-Computer Sciences Education Oczapowskiego Street 11, 10-719 Olsztyn, Poland tel.: [phone], fax: [phone]

autor

Olejnik A.

• University of Warmia and Mazury in Olsztyn Department of Mechatronics and Technical-Computer Sciences Education Oczapowskiego Street 11, 10-719 Olsztyn, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Michna, M., Kutt, F., Racewicz, S., Ronkowski, M., Nonlinear model of synchronous generator for autonomous electrical power systems analysis, in 2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), pp. 853-858, 2014.
• [2] Kutt, F., Michna, M., Kostro, G., Sienkiewicz, Ł., Performance and stability of the powers system supplied from batteries and generators in more electric aircraft, No. 1, pp. 2-4.
• [3] Racewicz, S., Olejnik, A., Feasibility study of the electric power generation unit start-up using the three-phase synchronous generator with the ac exciter, Journal of KONES Powertrain Transport, Vol. 23, No. 3, pp. 411-417, 2016.
• [4] Zharkov, M. A., Kharitonov, S. A., Simin, V. S., Electric starter mode three-stage synchronous generator with damping cage, Int. Conf. Young Spec. Micro/Nanotechnologies Electron Devices, EDM, pp. 444-446, 2014.
• [5] Possidente, R., Roselli, C., Sasso, M., Sibilio, S., Experimental analysis of microcogeneration units based on reciprocating internal combustion engine, Energy Build., Vol. 38, No. 12, pp. 1417-1422, 2006.
• [6] Bernard, L., Ferrari, A., Micelli, D., Perotto, A., Rinolfi, R., Vattaneo, F., Electro-hydraulic Valve Control with MultiAir Technology, ATZautotechnology, Vol. 9, No. 6, pp. 32-37, 2009.
• [7] Ambrozik, A., Ambrozik, T., Conversion of fiat 0 . 9 multiair engine to multi-fuelling, Vol. 20, No. 4, pp. 9-16, 2013.
• [8] Mydłowski, T., Nader, S., Biskup, K., Jasiński, M., Wykorzystanie urządzenia ECU Master EMU do sterowania silnikami z zapłonem iskrowym, Zesz. Nauk. Inst. Pojazdów / Politech. Warsz., Z. 5/86, 2011.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).