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Optimal calibration scheme for map-based control of diesel engines

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Abstract

Map-based control has the advantage of a simple control structure. However, in the case of a complex plant, calibrating the map is difficult. Calibration methodology using plant model is increasing in engine calibration industries. However, the models are for steady-state operation and cannot simulate at transient operation well. This study introduces the dynamic empirical model and applies the transient corrective function of an electronic control unit to simulate more realistic behavior. The optimization problem for calibrating maps of diesel engines is constructed, and the formulation of cost function and constraints is discussed. Consequently, the proposed calibration scheme can find an optimal map in satisfied constraints. Finally, the optimized maps are validated using mass production diesel engines.

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Correspondence to Yui Nishio.

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Nishio, Y., Murata, Y., Yamaya, Y. et al. Optimal calibration scheme for map-based control of diesel engines. Sci. China Inf. Sci. 61, 70205 (2018). https://doi.org/10.1007/s11432-017-9381-6

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Keywords

  • optimization
  • Gaussian
  • SQP
  • Diesel engine
  • calibration
  • DoE