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AssigneeNissan Motor Co., Ltd.
InventorsIsamu UEHARA, Akikazu SAKAI, Hiroyuki ITOYAMA
Estimating the term…
The soot accumulation amount for each of the exhaust particulate filters 7 and 8 of banks in a V-type internal combustion engine is estimated, and when the soot accumulation amount of the exhaust particulate filter 8, which has a lower soot accumulation amount, exceeds a first threshold SL1, regeneration process for both the banks starts. The regeneration process is terminated when the soot accumulation in the exhaust particulate filter 7, which has a higher soot accumulation amount, reaches a lower limit soot amount Min by the regeneration process. Since the soot accumulation in the other exhaust particulate filter 8 does not fall below zero, the difference in soot accumulation amounts between the two exhaust particulate filters 7 and 8 becomes small. The soot accumulation amount of one exhaust particulate filter 7 is limited to the lower limit soot amount Min, the collection efficiency is ensured.
A method for regenerating exhaust particulate filters in a V-type internal combustion engine having a pair of banks and the exhaust particulate filters provided in respective exhaust passages of the pair of banks, the method comprising:
A device for regenerating exhaust particulate filters in a V-type internal combustion engine, wherein the V-type internal combustion engine has a pair of banks and the exhaust particulate filters provided in respective exhaust passages of the pair of banks, the device comprising:
Dependencies are inferred from the claim text.