Method, system and computer-program product for controlling the particulate combustion during the regeneration of a particulate filter of a diesel engine

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United States of America Patent

PATENT NO 10711671
APP PUB NO 20190085745A1
SERIAL NO

16133913

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Abstract

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A diesel engine system includes a diesel engine, an exhaust line, a particulate filter interposed in the exhaust line and an electronic control unit for controlling fuel injectors associated with cylinders of the engine. When an accumulated particulate mass in said filter reaches a predetermined threshold, a filter regeneration mode is activated, including activating post-injections of fuel by controlling said injectors, to determine a start of an automatic filter regeneration step, which is caused by an increase in temperature of exhaust gases fed to the filter. The temperature increase is sufficient to burn particulate in the filter. The post-injections of fuel are deactivated whenever a critical condition occurs for at least a first period of time, the critical condition being one in which a temperature value upstream of the filter exceeds a first threshold value. In this case, the regeneration mode is resumed following disappearance of the critical condition.

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Patent Owner(s)

Patent OwnerAddress
FCA ITALY S P A10135 TORINO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colandrea, Vincenzo Turin, IT 2 1
Garombo, Danilo Turin, IT 4 16
Mauro, Alessandro Turin, IT 4 34

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