Vorrichtung und Verfahren zur Regenerierung eines Partikelfilters einer Abgasreinigungsvorrichtung einer Brennkraftmaschine

摘要

A regeneration apparatus comprises a regeneration timing determining section that determines the timing at which an accumulated particulate is combusted to regenerate the particulate filter, and a regeneration mode controlling section that performs a control for combustion of the particulate. The regeneration mode-controlling section includes first and second exhaust-gas temperature raising sections. A regeneration apparatus comprises a regeneration timing determining section that determines the timing at which an accumulated particulate is combusted to regenerate the particulate filter, and a regeneration mode controlling section that performs a control for combustion of the particulate. The regeneration mode-controlling section includes first and second exhaust-gas temperature raising sections. The first exhaust gas temperature raising section raises a temperature of the engine exhaust gas to a first target temperature set at a temperature equal to or higher than a criterion temperature that provides a criterion of whether that particulate is combusted to regenerate the particulate filter when the engine falls in a first driving region. The second exhaust gas temperature raising section raises the engine exhaust gas temperature to a second target temperature set at a temperature lower than the criterion temperature when the engine falls in a second driving region different from the first driving region. Independent claims are also included for the following: (a) the regeneration of a particulate filter, comprising determining a timing at which an accumulated particulate is combusted to regenerate the particulate filter, and performing a control for a combustion of the particulate by raising a temperature of the engine exhaust gas to a first target temperature set at a temperature equal to or higher than a criterion temperature, which provides a criterion of whether the particulate is combusted to regenerate the particulate filter when the engine falls in a first driving region, and raising the engine exhaust gas temperature to a second target temperature set at a temperature lower than the criterion temperature when the engine falls in a second driving region different from the first driving region; and (b) a exhaust gas purifying device comprising particulate filter, and regeneration apparatus.