Optimal Control of Make-Up Lubricating Systems for Internal Combustion Engines

Resumen: This research deals with the optimal control of make-up lubricating systems for internal combustion engines. Firstly, classic mass balances are proposed to depict the dynamics of the width of the tribological film protecting the rubbing surfaces; this is a competitive “renovation-removal” process that can reach optimal steady state. Secondly, to regulate the film width in this steady state, optimal trajectories of make-up of lubricant in the engine's oil pan and supply of lubricant from the oil pan to the engine are deduced using optimal control methodology. Results show feasible tracks to be followed by lubricating system to reach the optimal steady state, which simultaneously minimize the lubricant consumption.

¿Cómo citar?

Saúl Domínguez-García, Luis Béjar-Gómez, Fabricio Nápoles-Rivera & Rafael Maya-Yescas. Optimal Control of Make-Up Lubricating Systems for Internal Combustion Engines. Memorias del Congreso Nacional de Control Automático, pp. 74-79, 2021.

Palabras clave

Dynamics, Engine, Lubricants, Optimal control, Optimal trajectory

• V.M. Alekseev. Optimal Control. New York, Springer Science + Business Media, LLC, 2013, p.p. 250-275.
• R. Aris, C. Truesdell. Prolegomena to the rational analysis of systems of chemical reactions. Process Systems Engineering, vol. 1, no. 1, pp. 149–169, 1999.
• N.A. Bhore, M.T. Klein, K.B. Bischoff. The Delplot Technique: A New Method for Reaction Pathway Analysis. Industrial & Engineering Chemistry Research, vol. 29, no. 2, pp. 313–316, 1990.
• D. Constales, G.S. Yablonsky, G.B. Marin. Predicting kinetic dependences and closing the balance: Wei and Prater revisited. Chemical Engineering Science, vol. 123, pp. 328–333, 2015.
• S. Domínguez-García, L. Béjar-Gómez, R. Huirache-Acuña, J. Lara-Romero, and R. Maya-Yescas. Delumping strategy to infer lubricating reaction pathways in internal combustion engines. International Journal of Chemical Reactor Engineering, vol. 18, Art. 1, 2020.
• S. Domínguez-García, C.E. Aguilar-Ramírez, L. BéjarGómez, and R. Maya-Yescas. Mass balance of the tribofilm in lubricated systems. Tribology International, vol. 155, Art. 106757, March 2021.
• L. Ma, J. Luo. Thin film lubricating in the past 20 years. Friction, vol. 4, no. 4, p.p. 280–302, 2016.
• A. Malcolm, J. Polan, L. Zhang, B.A. Ogunnaike, A.A. Linninger. Integrating systems design and control using dynamic flexibility analysis. AIChE J, vol. 53, no. 8, p.p. 2048-2061, 2007.
• J. Wei. Structure of complex chemical reaction systems. Industrial & Engineering Chemistry Fundamentals, vol. 4, no. 2, pp. 161–167, 1965.
• B. Zhao, X.D. Dai, Z.N. Zhang, Y.B. Xie, A new numerical method for piston dynamics and lubricating analysis. Tribology International, vol. 94, February, pp. 395–408, 2016.