排気ガス浄化装置 - KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Title:

排気ガス浄化装置

Document Type and Number:

Japanese Patent JP7501433

Kind Code:

B2

Abstract:

To provide an exhaust emission control device which can regenerate a DPF collection function during a non-load deceleration operation, and can improve fuel economy.SOLUTION: An exhaust emission control device comprises a fuel addition control device for controlling fuel so as to be added into an exhaust gas via a fuel addition device when an accumulation quantity of particulate substances accumulated on a particulate substance removal filter reaches a prescribed accumulation quantity threshold, and a floor temperature determination device for determining whether or not a floor temperature of the particulate substance removal filter acquired by a filter floor temperature acquisition device reaches a filter activation temperature at which the particulate substances are oxidized after the fuel is added into the exhaust gas via the fuel addition device. When it is determined that the floor temperature of the particulate substance removal filter reaches the filter activation temperature at which the particulate substances are oxidized via the filter floor temperature determination device, the fuel addition control device controls the fuel so that the addition of the fuel into the exhaust gas by the fuel addition device is stopped.SELECTED DRAWING: Figure 1

Inventors:

Takashi Nagamori

Application Number:

JP2021065739A

Publication Date:

June 18, 2024

Filing Date:

April 08, 2021

Export Citation:

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