Experimental Demonstration of a Model-Based Control Design and Calibration Method for Cost Optimal Euro-VI Engine-Aftertreatment Operation 2013-01-1061
This paper presents a model-based control and calibration design
method for online cost-based optimization of engine-aftertreatment
operation under all operating conditions. The so-called Integrated
Emission Management (IEM) strategy online minimizes the fuel and
AbBlue consumption. Based on the actual state of engine and
aftertreatment systems, optimal air management settings are
determined for EGR-SCR balancing. Following a model-based approach,
the strategy allows for a systematic control design and calibration
procedure for engine and aftertreatment systems.
The potential of this time efficient method is demonstrated by
experiments for a heavy-duty Euro-VI engine. The Integrated
Emission Management strategy is developed and calibrated offline
over a cold and hot World Harmonized Transient Cycle (WHTC) for the
set emission targets.
The total IEM development and calibration process takes
approximately 20 weeks from model identification to the acceptance
tests. Moreover, by only changing the software settings, the
existing hardware performance increases: the WHTC results show a
1.1% operational cost reduction and corresponding 1.4% fuel
consumption reduction (and by that CO₂) compared to the baseline
Euro-VI strategy. Further potential benefits include reduced heat
rejection in the EGR system and reduced DPF regeneration frequency.
The presented approach offers also a generic framework for future
extension with Waste Heat Recovery and hybrid electric drivetrain
functions: Integrated Emission and Energy Management.
Citation: Mentink, P., Willems, F., Kupper, F., and Van den Eijnden, E., "Experimental Demonstration of a Model-Based Control Design and Calibration Method for Cost Optimal Euro-VI Engine-Aftertreatment Operation," SAE Technical Paper 2013-01-1061, 2013, https://doi.org/10.4271/2013-01-1061. Download Citation
Paul Mentink, Frank Willems, Frank Kupper, Edwin Van den Eijnden