Method and system for diagnosing failure of piston cooling device

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United States of America Patent

PATENT NO 10711682
APP PUB NO 20190078493A1
SERIAL NO

15836607

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Abstract

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A method for diagnosing a failure of a solenoid valve of a piston cooling device is provided. The method includes varying a pressure in a variable proportional control oil pump when an opening command or a closing command of the solenoid valve is sent to inject oil from the piston cooling device. Additionally, a variation of an oil pressure in an oil flow path of the piston cooling device is monitoring according to a variation of the pressure in the variable proportional control oil pump and whether a failure occurs at the solenoid valve of the piston cooling device is then determined.

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Patent Owner(s)

Patent OwnerAddress
KIA MOTORS CORPORATION12 HEOLLEUNG-RO SEOCHO-GU SEOUL 06797
HYUNDAI MOTOR COMPANYSEOUL 06797

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Kwang-Seok Gyeonggi-do, KR 15 71
Kim, Jin-Sung Seoul, KR 207 1671

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