Design, optimization, and control on a novel diesel engine aftertreatment system with multi-chamber catalytic converter (MCCC)

本研究的目的是使MCCC技术从汽油机催化转化器顺利过渡到柴油机后处理系统。多室催化转化器（MCCC）是Vida控股有限公司提出的专利产品，是对现有催化转化器设计的改进。维达控股对汽油发动机的研究表明，它在去除氮氧化物、降低制造成本和提高燃油经济性方面具有明显的优势。虽然MCCC技术在汽油机上表现出上述优点，但其在柴油机后处理系统中的应用仍需要全面研究，因为柴油机后处理系统比汽油机后处理系统复杂得多。

This research aims at smoothly transferring the MCCC technology from gasoline engine catalytic converter to diesel engine aftertreatment system. Multi-Chamber Catalytic Converter (MCCC), which is proposed, patented, and fully owned by Vida Holdings Corp. Ltd., is a modification to the current catalytic converter design. Studies for gasoline engines from Vida Holdings have shown its tangible advantages in the removal of NOx, manufacture cost reduction, and fuel economy improvement. While MCCC technology demonstrated above advantages in gasoline engines, its application in diesel engine aftertreatment system, which is much more complex than that of the gasoline one, still needs to be comprehensively studied. In diesel engines, the MCCC technology will be incorporated in the Diesel Oxidation Catalysts (DOC). This modification will change the downstream chemical contents, pressure, and temperature conditions. Therefore, other aftertreatment components downstream DOC, including Diesel particulate filter (DPF) and selective catalytic reduction (SCR) reactor, need to be redesigned, optimized, and properly controlled. To achieve the optimal operations for the novel diesel aftertreatment system with MCCC, the research will be performed through MCCC design for diesel engines, aftertreatment system optimizations, modelling, and control. The expected outcomes of this project are the novel and systematic technologies on design, optimization, and control for MCCC-based diesel engine aftertreatment system, benefiting the emission reduction, production cost reduction, and fuel economy (through back-pressure reduction). This will significantly extend the application of MCCC and strength the position of Vida Holdings Corp. Ltd. in automotive emission control innovations. This research will also greatly benefit the automotive sector in Canada and worldwide in emission reduction, fuel sustainability, and productions.