Resources Contact Us Home
Method of determining the amount of particulate accumulated in a particulate filter

Image Number 7 for United States Patent #6941750.

A method of determining the amount of particulate accumulated in a particulate filter, is based on determining possible variations in the spatial distribution and/or physical-chemical properties of the particulate as a function of engine operating conditions and past particulate accumulation in the particulate filter. A number of reference values defining a relationship between the amount of particulate accumulated in the particulate filter and the pressure drop across the particulate filter are mapped, each of the reference values relating to a respective steady engine operating condition in which particulate is accumulated in the particulate filter. In a given engine operating condition, an operating value of the parameter is then determined as a function of the reference value of the parameter relative to the same steady engine operating condition, and of past particulate accumulation in the particulate filter.

  Recently Added Patents
Efficient file system metadata scanning using scoped snapshots
Dye-sensitized solar cell, dye-sensitized solar cell module, and coating liquid for forming electrolyte layer
Inductive antenna coupling
Image forming apparatus
Touchscreen with Z-velocity enhancement
Image recording device, image recording method, and computer program product that adds a fluorescent-whitening-agent onto a recording sheet
Portable electric circular saw
  Randomly Featured Patents
Micro-lens configuration for small lens focusing in digital imaging devices
Method and apparatus for minimizing within-die variations in performance parameters of a processor
Start menu user tiles
Single-pass imaging system using spatial light modulator anamorphic projection optics
Electronic game providing formation changes and method
Antiviral agents
Materials and methods for controlling isotope effects during fractionation of analytes
Insulative modular mounting panels for electrical switchboards
Extruder for modeling compound
Electro-optical apparatus, method of driving same, and electronic apparatus