Recently, Cummins and Tula Technology, Inc. announced that they will collaborate on a major technical demonstration of diesel dynamic cylinder shut-off technology (dDSF ?). By using dDSF software to control cylinder deactivation, this technology aims to reduce carbon emissions and reduce fuel consumption.
"At Cummins, our mission is to power a more prosperous world. We help our customers succeed through innovative and reliable products that are beneficial to our customers and the environment. We will continue to innovate diesel engine systems to make them lighter and more Reliable, stronger and more fuel efficient, we are encouraged by the progress made in this cooperation and the future advancement of diesel engine technology. "Said Lisa Farrell, Director of Advanced System Integration, Cummins.
The project was launched in early 2019 with the goal of optimizing the diesel engine cylinder deactivation strategy to achieve emission reduction benefits. The progress made through this project is expected to help address future stricter NOx regulations.
The cooperation is carried out on the Cummins X15 efficiency series 6-cylinder diesel engine, which has the same level of leading fuel economy. The joint development team modified the engine system to integrate and utilize Tula's Dynamic Cylinder Shutdown Technology (DSF?) control algorithm to order combustion or deactivation based on cylinder events. In the low-load cycle proposed by the California Air Resources Board, the modeling of dDSF technology predicts that while reducing the emissions of nitrogen oxides (NOx) in the exhaust pipe, it can also reduce carbon dioxide (CO2).
The reduction of nitrogen oxides in the exhaust pipe is mainly achieved by optimizing the exhaust temperature control, thereby significantly improving the conversion efficiency of the aftertreatment system. This technology achieves a reduction in carbon dioxide by improving combustion and reducing pump work. In addition, dDSF technology can reduce fuel consumption while improving exhaust emissions, thereby further optimizing these key parameters.
"Our cooperation with Cummins has given us the opportunity to extend dDSF technology beyond gasoline engines. Demonstrating the ability to achieve very effective emission control while improving fuel efficiency, which will be true for all future diesel engine applications It is extremely important, "said R. Scott Bailey, President and CEO of Tula Technology.
Cummins and Tula jointly published their paper "Dynamic Cylinder Shutdown Technology for Diesel Engines (dDSF?). At the same time reduce carbon dioxide and nitrogen oxides, "the paper introduced and quantified dDSF's successful experience in improving efficiency and reducing carbon dioxide and nitrogen oxides at the 2020 Vienna Automotive Conference. The paper reflects Cummins and Tula's diesel engine The market evaluates the successful partnership of dDSF, which will continue to explore future system optimization and feasibility.
