Patent ID: 9523327
Filing Date: 2016-12-20
CPC Classification: F02D

Claim Text:
1. A soot accumulation computing and displaying device loaded into a vehicle, which is configured to perform displaying of information with regards to an accumulation amount of soot in a filter provided in a flow path of an exhaust gas from an internal-combustion engine, comprising: a first calculating processor that is configured to calculate a first inferred value of a present accumulation amount of the soot, based on a main fuel injection amount having contributed to driving of the internal-combustion engine, and a post fuel injection amount having contributed to regeneration processing of the filter, both of the fuel injection amounts being detected between a present time and an ending time of a latest regeneration processing of the filter among regeneration processings of the filter completed in past; a first timer that is configured to detect a driving time of the internal-combustion engine, which is detected to the present time from a starting time of the latest regeneration processing of the filter among the regeneration processings of the filter conducted in past; a second calculating processor that is configured to calculate a second inferred value of the present accumulation amount of the soot corresponding to the driving time detected by the first timer, based on a first relation, which has been found beforehand, between the driving time of the internal-combustion engine and the accumulation amount of the soot; a determining processor that is configured to determine a maximum inferred value among the first and second inferred values; and a displaying part that is configured to perform displaying with regards to the maximum inferred value determined by the determining processor.