Integrated Engine Performance and Valvetrain Dynamics Simulation

Paper #:
  • 2016-01-0483

Published:
  • 2016-04-05
DOI:
  • 10.4271/2016-01-0483
Citation:
Wang, H., Nitu, B., Sandhu, J., Zhong, L. et al., "Integrated Engine Performance and Valvetrain Dynamics Simulation," SAE Technical Paper 2016-01-0483, 2016, doi:10.4271/2016-01-0483.
Pages:
5
Abstract:
Valvetrain dynamics modeling and engine combustion modeling are often carried out independently. As a result, the interaction between these two physical responses may not be accurately assessed. The objective of this work is to understand the impact that robust valve timing simulations, implemented using a fully coupled valve train dynamics and engine performance model, have on engine performance prediction. The integrated simulation and detailed technical approach are discussed through the presentation of an example implementation. An I4 engine model is developed in which engine performance and valvetrain dynamics modeling are coupled. A benefit of this multi-physics approach is that it reduces reliance on empirically derived estimates of valve lash in favor of physical modeling of engine valvetrain dynamics that predicts lash during engine performance modeling.
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