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A Comparative Case Study of Reducing Carbon Emission by Optimal Engine Management with Direct and Indirect CO2-Cost Function

This paper presents a comparative case study for reducing carbon emissions by minimizing total fuel consumption via managing the operation point of combustion engine. As a benchmark example, a hybrid electric vehicle with the planetary gear box is chosen. First, a carbon emission rate map is obtained with the experimental data conducted at a gasoline engine testbench. Then, the optimal strategies for managing the engine operating point are obtained by using different cost functions, the fuel consumption rate and the carbon emission rate. Finally, the effect on reducing carbon emission of two optimization is demonstrated with numerical simulation results.