Fault detection device and fault detection method

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United States of America Patent

PATENT NO 9829414
APP PUB NO 20150253221A1
SERIAL NO

14432275

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Abstract

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A fault detection device includes a wastegate valve, a control unit, a working gas amount computation section, and a determination section. The control unit obtains a rotational speed of an engine, a boost pressure, and an intake air temperature. The working gas amount computation section computes a computed value of a mass flow rate of working gas in the engine by using the rotational speed, the boost pressure, and the intake air temperature. The determination section determines that the wastegate valve has a fault when the computed value is not a normal value.

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Patent Owner(s)

Patent OwnerAddress
HINO MOTORS LTD3-1-1 HINODAI HINO-SHI TOKYO 191-8660

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakano, Hitoshi Hino, JP 47 721

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