WO2005114141A3 - Decoding an alternator output signal - Google Patents

Decoding an alternator output signal Download PDF

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Publication number
WO2005114141A3
WO2005114141A3 PCT/US2005/014108 US2005014108W WO2005114141A3 WO 2005114141 A3 WO2005114141 A3 WO 2005114141A3 US 2005014108 W US2005014108 W US 2005014108W WO 2005114141 A3 WO2005114141 A3 WO 2005114141A3
Authority
WO
WIPO (PCT)
Prior art keywords
engine
output signal
alternator
signal
alternator output
Prior art date
Application number
PCT/US2005/014108
Other languages
French (fr)
Other versions
WO2005114141A2 (en
Inventor
Robert D Decarlo
Michael B Meeker
Dennis M Mutzabaugh
Ronald M J Lammers
Nicolaas M J Stoffels
Original Assignee
Snap On Tools Corp
Robert D Decarlo
Michael B Meeker
Dennis M Mutzabaugh
Ronald M J Lammers
Nicolaas M J Stoffels
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
Priority claimed from US10/840,509 external-priority patent/US7162397B2/en
Priority claimed from US10/840,434 external-priority patent/US7171302B2/en
Application filed by Snap On Tools Corp, Robert D Decarlo, Michael B Meeker, Dennis M Mutzabaugh, Ronald M J Lammers, Nicolaas M J Stoffels filed Critical Snap On Tools Corp
Publication of WO2005114141A2 publication Critical patent/WO2005114141A2/en
Publication of WO2005114141A3 publication Critical patent/WO2005114141A3/en

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
    • G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
    • G01M15/046—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring revolutions
    • 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
    • G01M15/06—Testing internal-combustion engines by monitoring positions of pistons or cranks

Landscapes

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

Abstract

An engine diagnostic system is provided that enables a service technician to evaluate engine cylinder contribution to output power. The service technician couples one or more signal leads to the vehicle's battery, alternator, or accessory receptacle (e.g., cigarette lighter receptacle) to provide an alternator output signal to a signal analyzer. The signal analyzer processes the alternator output signal to generate an engine signature, which represents engine cylinder contribution to engine output power.
PCT/US2005/014108 2004-05-07 2005-04-26 Decoding an alternator output signal WO2005114141A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/840,434 2004-05-07
US10/840,509 US7162397B2 (en) 2004-05-07 2004-05-07 Decoding an alternator output signal
US10/840,509 2004-05-07
US10/840,434 US7171302B2 (en) 2004-05-07 2004-05-07 Determining engine cylinder contribution from indexed engine data

Publications (2)

Publication Number Publication Date
WO2005114141A2 WO2005114141A2 (en) 2005-12-01
WO2005114141A3 true WO2005114141A3 (en) 2006-01-26

Family

ID=34967207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/014108 WO2005114141A2 (en) 2004-05-07 2005-04-26 Decoding an alternator output signal

Country Status (1)

Country Link
WO (1) WO2005114141A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833515A (en) * 2015-05-19 2015-08-12 成都诚邦动力测试仪器有限公司 Reverse-phase amplification type engine test and control system based on low-order filtering circuit
CN104833513A (en) * 2015-05-19 2015-08-12 成都诚邦动力测试仪器有限公司 Engine test and control system based on linear detection circuit
CN110456205A (en) * 2019-09-06 2019-11-15 云南电网有限责任公司电力科学研究院 A kind of alternating current filter out-of-balance current on-line monitoring method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459548A (en) * 1981-11-12 1984-07-10 Snap-On Tools Corporation Alternator testing apparatus
WO2003107020A2 (en) * 2002-06-13 2003-12-24 Snap-On Technologies, Inc. Integrated battery service system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459548A (en) * 1981-11-12 1984-07-10 Snap-On Tools Corporation Alternator testing apparatus
WO2003107020A2 (en) * 2002-06-13 2003-12-24 Snap-On Technologies, Inc. Integrated battery service system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
B.M. JAWORSKI, A.A. DETLAF: "PHYSIK GRIFFBEREIT", September 1974, ROWOHLT TASCHENBUCH VERLAG, REINBECK BEI HAMBURG, XP002339713 *

Also Published As

Publication number Publication date
WO2005114141A2 (en) 2005-12-01

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