EP3103980A1 - Vorrichtung und verfahren zur diagnose des versagens eines kolbenkühlungsstrahls eines motors - Google Patents

Vorrichtung und verfahren zur diagnose des versagens eines kolbenkühlungsstrahls eines motors Download PDF

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Publication number
EP3103980A1
EP3103980A1 EP15191586.5A EP15191586A EP3103980A1 EP 3103980 A1 EP3103980 A1 EP 3103980A1 EP 15191586 A EP15191586 A EP 15191586A EP 3103980 A1 EP3103980 A1 EP 3103980A1
Authority
EP
European Patent Office
Prior art keywords
oil
solenoid valve
cooling jet
piston cooling
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15191586.5A
Other languages
English (en)
French (fr)
Inventor
Seung Bum Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Kia Corp
Original Assignee
Hyundai Motor Co
Kia Motors Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyundai Motor Co, Kia Motors Corp filed Critical Hyundai Motor Co
Publication of EP3103980A1 publication Critical patent/EP3103980A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/06—Arrangements for cooling pistons
    • F01P3/08—Cooling of piston exterior only, e.g. by jets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M2250/00—Measuring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P2003/006—Liquid cooling the liquid being oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/04—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/22—Motor-cars

Definitions

  • the present disclosure relates to an apparatus and a method for diagnosing a failure of a piston cooling jet of an engine, and more particularly, to an apparatus and a method for diagnosing a failure of a piston cooling jet of an engine, which are capable of determining a failure of a solenoid valve to selectively operate a piston cooling jet.
  • a main oil gallery formed in a cylinder block of an engine for a vehicle serves as a path for lubricating oil from the cylinder block to a crank shaft and various perturbation units.
  • a piston cooling jet (PCJ) can be installed in the cylinder block.
  • a main oil gallery 12 is longitudinally arranged at one side of the cylinder block 10
  • an oil line 14 for a PCJ is longitudinally arranged at the opposite side
  • a PCJ 16 for injecting oil into a piston is mounted at the oil line 14 for the PCJ.
  • a solenoid valve 18 is mounted at an inlet of the oil line 14 for the PCJ. When the solenoid valve 18 is turned on, oil flows to the oil line 14 for the PCJ, so that an oil injection operation of the PCJ 16 is performed. When the solenoid valve 18 is turned off, an oil flow to the oil line 14 for the PCJ is blocked.
  • oil is not continuously circulated to the PCJ. Rather, the oil injection operation of the PCJ is controlled to be on or off in accordance with a running condition of the engine.
  • the oil injection operation of the PCJ is divided into an oil jet injection region, in which oil is injected into the piston, and an oil jet stopped region, in which an oil injection is stopped, according to an engine load and an engine speed to be controlled.
  • the injection operation of the PCJ is run on/off by turning on/off, correspondingly, the solenoid valve.
  • the solenoid valve 18 when the ECU operates the solenoid valve 18 to be turned on according to the running condition of the engine, the solenoid valve 18 is opened and the oil flows to the oil line 14 for the PCJ, so that the oil injection operation of the PCJ 16 is performed.
  • the solenoid valve 18 When the ECU operates the solenoid valve 18 to be turned off, the solenoid valve 18 is turned off, so that an oil flow to the oil line 14 for the PCJ is blocked.
  • the present disclosure provides an apparatus and a method for diagnosing failure of a piston cooling jet of an engine, which are capable of diagnosing failure of a solenoid valve for selectively operating an injection operation of a piston cooling jet by using an oil pressure switch, thereby preventing an excess of an emission regulation value and a cylinder block from being damaged due to failure of the solenoid valve.
  • the present disclosure provides an apparatus for diagnosing a failure of a piston cooling jet of an engine, including: an oil line for a piston cooling jet arranged in a cylinder block in a longitudinal direction; a piston cooling jet mounted at the oil line for the piston cooling jet to inject oil to a piston; a solenoid valve mounted at an inlet of the oil line for the piston cooling jet to selectively allow an injection operation of the piston cooling jet; an oil pressure detecting means mounted at the oil line for the piston cooling jet after the solenoid valve to detect oil pressure; and a control unit configured to receive a detection signal of the oil pressure detecting means and determine whether the solenoid valve is in a failure state.
  • the apparatus may further include a driver warning means operated by the control unit when it is determined that the solenoid valve is in a failure state.
  • the oil pressure detecting means may be an oil pressure switch which is switched at a time of detecting oil pressure to generate a pressure detection signal.
  • the present disclosure provides a method of diagnosing failure of a piston cooling jet of an engine, including: opening or closing a solenoid valve in order to supply oil to an oil line for a piston cooling jet or block oil according to a running condition of an engine; injecting, by the piston oil jet, oil flowing into the oil line for the piston cooling jet when the solenoid valve is opened; blocking oil from flowing to the oil line for the piston cooling jet when the solenoid valve is closed and stopping an injection operation of the piston oil jet; and detecting oil pressure within the oil line for the piston cooling jet, and determining that the solenoid valve is in a failure state when the oil pressure is not detected when the solenoid valve is opened or the oil pressure is detected when the solenoid valve is closed.
  • the solenoid valve when the oil pressure is not detected when the solenoid valve is opened, it may be determined that the solenoid valve has a failure in a closed state.
  • the method may further include operating, by a control unit, a driver warning means when it is determined that the solenoid valve has a failure.
  • vehicle or “vehicular” or other similar term as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
  • a hybrid vehicle is a vehicle that has two or more sources of power, for example both gasoline-powered and electric-powered vehicles.
  • FIG. 4 is a schematic diagram illustrating a piston cooling jet failure diagnosing apparatus of an engine according to the present disclosure.
  • a main oil gallery 12 is longitudinally arranged at one side of a cylinder block 10
  • an oil line 14 for a piston cooling jet is longitudinally arranged at the opposite side
  • a piston cooling jet 16 for injecting oil into a piston is mounted at the oil line 14 for the piston cooling jet.
  • a solenoid valve 18 is mounted at an inlet of the oil line 14 for the piston cooling jet, and when the solenoid valve 18 is turned on and opened, oil flows to the oil line 14 for the piston cooling jet, so that an oil injection operation of the piston cooling jet 16 is performed. In contrast, when the solenoid valve 18 is turned off and closed, an oil flow to the oil line 14 for the piston cooling jet is blocked.
  • an electronic control unit ECU
  • the solenoid valve 18 When an electronic control unit (ECU) operates the solenoid valve 18 to be turned on according to a running condition of the engine, the solenoid valve 18 is opened and the oil flows to the oil line 14 for the piston cooling jet, so that the oil injection operation of the piston cooling jet 16 is performed.
  • the solenoid valve 18 When the ECU operates the solenoid valve 18 to be turned off, the solenoid valve 18 is closed, so that an oil flow to the oil line 14 for the piston cooling jet is blocked.
  • the running on/off of the injection operation of the piston cooling jet 16, that is, whether to perform the injection operation of the piston cooling jet 16, is performed by controlling the solenoid valve 18 to be turned on/off.
  • the present disclosure focuses on a point that it is possible to prevent an excess of an emissions and the cylinder block from being damaged due to failure of the solenoid valve by diagnosing a failure of the solenoid valve 18 being able to run on/off the injection operation of the piston cooling jet 16 as described above.
  • an oil pressure detecting means 20 is mounted in the oil line 14 for the piston cooling jet after the solenoid valve 18.
  • the oil pressure detecting means 20 may be an oil pressure switch which is switched at the time of detecting an oil pressure to generate a pressure detection signal.
  • a control unit 22 that receives a detection signal of the oil pressure detecting means and determines a failure of the solenoid valve 18, is connected to the oil pressure detecting means 20.
  • a driver warning means 24 (for example, a warning lamp of a cluster) is connected to an output terminal of the control unit 22, so that when the control unit 22 determines that the solenoid valve 18 has failure, the driver warning means 24 is operated by a control signal of the control unit 22.
  • the control unit turns on the solenoid valve 18 mounted at the inlet of the oil line 14 for the piston cooling jet, so that the solenoid valve 18 is opened and the piston cooling jet becomes a piston cooling jet active state.
  • oil passes through the solenoid valve 18 and flows to the oil line 14 for the piston cooling jet, and an oil injection operation of the piston cooling jet 16 is performed.
  • the cylinder block is cooled by the piston cooling jet active state in which the oil injection operation of the piston cooling jet 16 is performed.
  • the oil pressure switch adopted as the oil pressure detecting means 20 detects a pressure of oil flowing within the oil line 14 for the piston cooling jet in the piston cooling jet active state.
  • the control unit 22 determines that the solenoid valve 18 is normally opened, so that oil normally flows to the oil line 14 for the piston cooling jet.
  • the control unit 22 determines that oil does not flow within the oil line 14 for the piston cooling jet because the solenoid valve 18 is maintained in a closed state due to the failure (for example, failure due to being stuck in the closed state) of the solenoid valve 18.
  • the control unit 22 may warn a driver of a failure state of the piston cooling jet and induce the driver to repair the piston cooling jet by operating the driver warning means 24 (for example, a warning lamp of the cluster).
  • the control unit turns off the solenoid valve 18 mounted at the inlet of the oil line 14 for the piston cooling jet, so that the solenoid valve 18 is closed.
  • the oil is blocked to flow to the oil line 14 for the piston cooling jet, and the piston cooling jet becomes a piston cooling jet inactive state, in which the oil injection operation of the piston cooling jet 16 is stopped.
  • the oil pressure switch adopted as the oil pressure detecting means 20 detects a pressure of oil flowing within the oil line 14 for the piston cooling jet in the piston cooling jet inactive state.
  • the control unit 22 determines that the solenoid valve 18 is normally closed and the piston cooling jet is in a normal oil blocked state where oil does not flow to the oil line 14 for the piston cooling jet, by the closing operation of the solenoid valve 18.
  • the control unit 22 determines that oil flows within the oil line 14 for the piston cooling jet because the solenoid valve 18 is maintained in an opened state due to the failure (for example, failure due to being stuck in the opened state) of the solenoid valve 18.
  • control unit 22 may warn the driver of a failure state of the piston cooling jet and induce the driver to repair the piston cooling jet by operating the driver warning means 24 (for example, a warning lamp of the cluster).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Fluid-Pressure Circuits (AREA)
EP15191586.5A 2015-06-12 2015-10-27 Vorrichtung und verfahren zur diagnose des versagens eines kolbenkühlungsstrahls eines motors Withdrawn EP3103980A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20150083285 2015-06-12

Publications (1)

Publication Number Publication Date
EP3103980A1 true EP3103980A1 (de) 2016-12-14

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ID=54539819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15191586.5A Withdrawn EP3103980A1 (de) 2015-06-12 2015-10-27 Vorrichtung und verfahren zur diagnose des versagens eines kolbenkühlungsstrahls eines motors

Country Status (3)

Country Link
US (1) US20160363040A1 (de)
EP (1) EP3103980A1 (de)
CN (1) CN106246332A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3940211A1 (de) * 2020-07-16 2022-01-19 Volkswagen Ag Diagnoseverfahren für ein kolbenkühldüsenventil, diagnosevorrichtung, steuergerät, kraftfahrzeug

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102417368B1 (ko) 2017-12-19 2022-07-05 현대자동차 주식회사 오일 압력 스위치 및 이를 이용한 피스톤 쿨링 오일 제트의 고장 진단 장치 및 방법
US10858982B2 (en) * 2018-04-19 2020-12-08 Ford Global Technologies, Llc Piston cooling system
CN108915836A (zh) * 2018-07-09 2018-11-30 廖增强 一种内燃发动机的冷却方法
KR102540557B1 (ko) * 2018-12-10 2023-06-07 현대자동차주식회사 하이브리드 차량의 윤활조절밸브 고착 진단 방법
CN112761807B (zh) * 2021-02-08 2022-06-28 联合汽车电子有限公司 故障诊断方法、活塞冷却系统及车辆
CN114810271B (zh) * 2022-05-11 2024-04-16 潍柴动力股份有限公司 一种用于发动机系统的控制方法及发动机系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049603A2 (de) * 1980-10-04 1982-04-14 The British Petroleum Company p.l.c. Schmiersystem
DE19926350C1 (de) * 1999-06-10 2000-11-02 Daimler Chrysler Ag Ölversorgungssystem
US20110224883A1 (en) * 2010-03-09 2011-09-15 GM Global Technology Operations LLC Method to diagnose a failure of an opcj valve of an internal combustion engine
US20120296518A1 (en) * 2011-05-19 2012-11-22 GM Global Technology Operations LLC Method to diagnose a fault of an oil piston cooling jets valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049603A2 (de) * 1980-10-04 1982-04-14 The British Petroleum Company p.l.c. Schmiersystem
DE19926350C1 (de) * 1999-06-10 2000-11-02 Daimler Chrysler Ag Ölversorgungssystem
US20110224883A1 (en) * 2010-03-09 2011-09-15 GM Global Technology Operations LLC Method to diagnose a failure of an opcj valve of an internal combustion engine
US20120296518A1 (en) * 2011-05-19 2012-11-22 GM Global Technology Operations LLC Method to diagnose a fault of an oil piston cooling jets valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3940211A1 (de) * 2020-07-16 2022-01-19 Volkswagen Ag Diagnoseverfahren für ein kolbenkühldüsenventil, diagnosevorrichtung, steuergerät, kraftfahrzeug
US11649745B2 (en) 2020-07-16 2023-05-16 Volkswagen Aktiengesellschaft Diagnostic method for an oil piston cooling jet valve, diagnostic device, control unit, motor vehicle

Also Published As

Publication number Publication date
CN106246332A (zh) 2016-12-21
US20160363040A1 (en) 2016-12-15

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