System for assisting the regeneration of a particle filter integrated into an exhaust line of a motor vehicle diesel engine
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United States of America Patent
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-
Nov 26, 2002
Grant Date -
Aug 2, 2001
app pub date -
Jan 22, 2001
filing date -
Jan 20, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This system is characterized in that the engine is linked to various members and to means for checking the operation of these various members in order to control the operation of the engine, these means also being designed to trigger a regeneration phase of the particle filter by combustion of the particles trapped in the latter, at the same time initiating a phase of multiple injections of fuel into the cylinders of the engine during their expansion phase, and in that the checking means comprise means for determining the particle load of the filter, which are connected a differential-pressure sensor arranged at the terminals of the filter and designed to deliver information representing the overall load of the filter, means for estimating the load of the filter in terms of residues other than the particles, and means for calculating the load of the particle filter from the overall load and from the load of other residues of the filter.
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