EMISSIONS CONTROL IN DIESEL ENGINES

摘要

An exhaust system is configured with a diesel oxidation catalyst that receives first exhaust gases from a diesel engine, a diesel particulate filter that receives second exhaust gases from the diesel oxidation catalyst. A first sensor in the exhaust system determines first exhaust gases data and transmits the first exhaust gases data to a controller while a second sensor determines second exhaust gases data and transmits the second exhaust gases data to the controller. The controller estimates unmeasured exhaust gases data based on the first exhaust gases data and the second exhaust gases data and determines when to initiate a regeneration cycle for the diesel particulate filter.

主权项

1. A system comprising:
a diesel oxidation catalyst that receives first exhaust gases from a diesel engine; a diesel particulate filter that receives second exhaust gases from the diesel oxidation catalyst; a first sensor that determines first exhaust gases data and transmits the first exhaust gases data to a controller; a second sensor that determines second exhaust gases data and transmits the second exhaust gases data to the controller; and the controller that estimates unmeasured exhaust gases data based on the first exhaust gases data and the second exhaust gases data and determines when to initiate a regeneration cycle for the diesel particulate filter.