The potential of a transient control method called model-based engine charge control (MCCT) to reduce nitrogen oxide (NOx) emissions of a light-duty diesel vehicle was investigated. The MCCT function was activated by calibrating factor maps adjusted for various parameters. The relationship between electronic control unit signals and NOx emissions was analyzed during both the worldwide harmonized light-duty test cycle (WLTC) and real driving emission (RDE) cycle. The results showed that MCCT could achieve different degrees of reduction in engine-out and tail-pipe NOx emissions during WLTC and RDE.
The potential of a method of transient control of model-based engine charge control (MCCT) is investigated to minimize nitrogen oxide (NOx) emissions of a light-duty diesel vehicle over two driving cycles, the worldwide harmonized light-duty test cycle (WLTC) and real driving emission (RDE) cycle. The MCCT function was switched on by calibrating factor maps corrected for several parameters. In addition, the relationship between electronic control unit signals and nitrogen oxide (NOx) emissions was analyzed under the WLTC and RDE. The engine-out and tail-pipe NOx emissions in the WLTC and RDE could achieve varying degrees of reduction with MCCT.
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