Control device and control method for internal combustion engine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11698018
APP PUB NO 20220403767A1
SERIAL NO

17749147

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Abstract

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A control device for an internal combustion engine including an upstream cleaning device and a downstream cleaning device that are provided in an exhaust gas passage and a temperature sensor that detects a temperature of exhaust gas between the upstream cleaning device and the downstream cleaning device is provided. The control device includes a first temperature estimating unit configured to estimate a temperature of the downstream cleaning device from the temperature of exhaust gas detected by the temperature sensor and a second temperature estimating unit configured to estimate a temperature of the downstream cleaning device without using the temperature of exhaust gas detected by the temperature sensor. An abnormality determining process for the upstream cleaning device is performed when at least the temperature of the downstream cleaning device estimated by the second temperature estimating unit is equal to or greater than a predetermined threshold value.

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Patent Owner(s)

Patent OwnerAddress
FREEDOM SOLUTIONS GROUP L L C550 WEST JACKSON BLVD SUITE 200 CHICAGO IL 60661

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hasegawa, Kazuhiro Nagoya, JP 144 1814
Idogawa, Masanao Nagoya, JP 89 248
Imai, Sohichi Toyota, JP 14 16
Matsuda, Yoshifumi Toyota, JP 17 49
Uchida, Takahiro Okazaki, JP 66 426
Yabushita, Yuki Toyota, JP 1 0
Yoshikawa, Yuya Toyota, JP 15 63

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