Mean Value Engine Modeling for a Diesel Engine with GT-Power 1D Detail Model

Paper #:
  • 2011-01-1294

Published:
  • 2011-04-12
Citation:
Wu, H., Wang, X., Winsor, R., and Baumgard, K., "Mean Value Engine Modeling for a Diesel Engine with GT-Power 1D Detail Model," SAE Technical Paper 2011-01-1294, 2011, https://doi.org/10.4271/2011-01-1294.
Pages:
19
Abstract:
Mean value engine model (MVEM) is the basis of control design for advanced internal combustion engines. The engine performance transient process usually takes a few cycles. The MVEM provides an adequate accurate description of the engine dynamics with reasonable approximation by ignoring the heat loss and sub-cycle events. MVEM is very important for engine system control development, especially when the modern engine becomes more and more complicated when equipped with throttle, turbocharger and after-treatment systems. Usually the MVEM is developed based on data from engine tests, which is a costly and time consuming process. In this paper, the air path MVEM modeling method based on the 1D detail model is discussed for a turbocharged diesel engine. Simulation is applied to demonstrate the effectiveness of this new method. This approach could be used to get the MVEM for control design even before the prototype engine is available. It reduces the cost, risk and labor compared with the test data based approach. This MVEM model can be built in modules and the parameters can be validated for a specific engine. These advantages make it applicable to a wide range of engines.
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