GB2135061A - Frequency domain engine defect signal analysis - Google Patents

Frequency domain engine defect signal analysis

Info

Publication number
GB2135061A
GB2135061A GB08404190A GB8404190A GB2135061A GB 2135061 A GB2135061 A GB 2135061A GB 08404190 A GB08404190 A GB 08404190A GB 8404190 A GB8404190 A GB 8404190A GB 2135061 A GB2135061 A GB 2135061A
Authority
GB
United Kingdom
Prior art keywords
engine
frequency domain
spectrum signal
domain spectrum
signal analysis
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.)
Granted
Application number
GB08404190A
Other versions
GB2135061B (en
GB8404190D0 (en
Inventor
Raymond C Meier
Stewart V Gable
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Publication of GB8404190D0 publication Critical patent/GB8404190D0/en
Publication of GB2135061A publication Critical patent/GB2135061A/en
Application granted granted Critical
Publication of GB2135061B publication Critical patent/GB2135061B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/05—Testing internal-combustion engines by combined monitoring of two or more different engine parameters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

A signal analyzer for detecting engine defects includes sensors (11-17) for detecting engine operating parameters such as engine speed, engine exhaust manifold pressure, engine intake manifold vacuum, blowby gas pressure in the engine crankcase, and oil pressure. Electrical signals representing the frequency and magnitude of the engine operating parameters are used to produce a frequency domain spectrum signal characteristic of the engine being tested. The frequency domain spectrum signal being tested is compared to a frequency domain spectrum signal from a normal engine thereby determining at what frequencies differences between the two signals exist, such differences being indicative of engine defects.
GB08404190A 1982-07-06 1982-07-06 Frequency domain engine defect signal analysis Expired GB2135061B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1982/000901 WO1984000417A1 (en) 1982-07-06 1982-07-06 Frequency domain engine defect signal analysis

Publications (3)

Publication Number Publication Date
GB8404190D0 GB8404190D0 (en) 1984-03-21
GB2135061A true GB2135061A (en) 1984-08-22
GB2135061B GB2135061B (en) 1985-11-13

Family

ID=22168076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08404190A Expired GB2135061B (en) 1982-07-06 1982-07-06 Frequency domain engine defect signal analysis

Country Status (3)

Country Link
DE (1) DE3390072C2 (en)
GB (1) GB2135061B (en)
WO (1) WO1984000417A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733791A2 (en) * 1995-03-18 1996-09-25 Sun Electric Uk Ltd. Method and apparatus for engine analysis
US6928370B2 (en) 2000-07-05 2005-08-09 Oxford Biosignals Limited Health monitoring
US6999884B2 (en) 2003-01-10 2006-02-14 Oxford Biosignals Limited Bearing anomaly detection and location

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234353B (en) * 1989-07-28 1994-06-01 James Ormond Beaumont Incipient failure detector
DE4025104A1 (en) * 1990-08-08 1992-02-13 Kloeckner Humboldt Deutz Ag Oil pressure level display, esp. for internal combustion engine - has evaluation circuit computing desired pressure from engine revolution rate and oil temp.
US6085732A (en) * 1999-01-25 2000-07-11 Cummins Engine Co Inc EGR fault diagnostic system
RU2474715C1 (en) * 2011-10-12 2013-02-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Челябинская государственная агроинженерная академия" Method of defining ice health and electronic device to this end
US9612174B2 (en) 2014-11-13 2017-04-04 General Electric Corporation Method and systems for exhaust gas recirculation valve diagnosis based on crankcase pressure
US9951703B2 (en) 2014-12-16 2018-04-24 General Electric Company Systems and method for multi-cylinder misfire detection
JP6662627B2 (en) 2014-12-16 2020-03-11 ジーイー グローバル ソーシング エルエルシーＧＥ Ｇｌｏｂａｌ Ｓｏｕｒｃｉｎｇ ＬＬＣ Engine cylinder misfire detection system
US10267249B2 (en) 2016-04-27 2019-04-23 Ge Global Sourcing Llc Systems for an engine
GB2563915A (en) 2017-06-29 2019-01-02 Perkins Engines Co Ltd Engine monitoring apparatus
GB2563914B (en) 2017-06-29 2021-12-08 Perkins Engines Co Ltd Engine monitoring

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853177B2 (en) * 1975-12-25 1983-11-28 日産自動車株式会社 Shitsuka Kenshiyutsu Sochi
US4064747A (en) * 1976-05-07 1977-12-27 United Technologies Corporation Relative and sub-cyclic speed measurements for internal combustion engine diagnostics
US4108362A (en) * 1977-01-28 1978-08-22 Sun Electric Corporation Vehicle diagnosis data entry system
US4128005A (en) * 1977-06-16 1978-12-05 Sun Electric Corporation Automated engine component diagnostic techniques

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733791A2 (en) * 1995-03-18 1996-09-25 Sun Electric Uk Ltd. Method and apparatus for engine analysis
EP0733791A3 (en) * 1995-03-18 1997-03-26 Sun Electric Uk Ltd Method and apparatus for engine analysis
US5978727A (en) * 1995-03-18 1999-11-02 Sun Electric U.K. Limited Method and apparatus for engine analysis by waveform comparison
US6928370B2 (en) 2000-07-05 2005-08-09 Oxford Biosignals Limited Health monitoring
US6999884B2 (en) 2003-01-10 2006-02-14 Oxford Biosignals Limited Bearing anomaly detection and location
US7191073B2 (en) 2003-01-10 2007-03-13 Oxford Biosignals Limited Bearing anomaly detection and location

Also Published As

Publication number Publication date
WO1984000417A1 (en) 1984-02-02
DE3390072C2 (en) 1986-07-10
DE3390072T1 (en) 1985-02-07
GB2135061B (en) 1985-11-13
GB8404190D0 (en) 1984-03-21

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990706