Particle deposition amount estimation device and exhaust purification system

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United States of America Patent

PATENT NO 12071878
APP PUB NO 20230287824A1
SERIAL NO

18119124

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Abstract

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A control device is configured to estimate a soot deposition amount (PM deposition amount) in a DPF for an exhaust purification device that is configured to purify exhaust of a diesel engine using the DPF, and determine a regeneration timing for the diesel engine based on the estimated PM deposition amount. As a technique of determining the regeneration timing, the control device employs a first determination technique of detecting that the PM deposition amount is a first threshold or more and a state in which the PM deposition amount is the first threshold or more has continued for a first predetermined time and a second determination technique of detecting that the PM deposition amount is a second threshold (>the first threshold) or more and a state in which the PM deposition amount is the second threshold or more has continued for a second predetermined time.

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Patent Owner(s)

Patent OwnerAddress
YANMAR HOLDINGS CO LTD1-32 CHAYAMACHI KITA-KU OSAKA-SHI 5300013

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Itani, Masahiro Osaka, JP 7 4
Jonouchi, Katsunari Osaka, JP 5 3
Kunisawa, Keiji Osaka, JP 2 0

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