The Detroit Diesel Series 60 uses electronic control to optimize turbo and EGR. After treament includes a Diesel Oxidation Catalyst and a Diesel Particulate Filter located in the exhaust system.
According to Green Car Congress, a next-generation Detroit Diesel electronic control unit optimizes EGR (Exhaust Gas Recirculation) to treat NOx.
DDEC VI offers increased power, memory capability and enhanced diagnostics and will be available on three re-developed engines. Detroit Diesel indicates that its two heavy-duty engines, the Series 60 and MBE 4000, and medium-duty MBE 900 will be certified to meet EPA 2007 requirements.
These regulations call for, among other things, a reduction in emissions of oxides of nitrogen to 1.1 g/bhp-hr (more than a 50% reduction from current levels) as well as a reduction of particulate matter emissions to .01 g/bhp-hr (90% reduction).
For all three engines, Detroit Diesel replaced the muffler assembly in the exhaust system with an aftertreatment system. This unit includes a Diesel Oxidation Catalyst and a Diesel Particulate Filter located in the exhaust system.
The automotive electronics monitor how exhaust heat and the catalyst work together to oxidize the soot. When the exhaust temperature is insufficient to achieve passive regeneration (less than 300ยบ C), active regeneration of the particulate filter occurs. Thus, these re-developed Detroit Diesel engines will have electronic control similar to some of the features of advanced diesel engines now being manufactured in Japan.
