CA2844926A1 - Procedes et appareil d'analyse de moteur utilisant des signaux electriques internes - Google Patents

Procedes et appareil d'analyse de moteur utilisant des signaux electriques internes Download PDF

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Publication number
CA2844926A1
CA2844926A1 CA2844926A CA2844926A CA2844926A1 CA 2844926 A1 CA2844926 A1 CA 2844926A1 CA 2844926 A CA2844926 A CA 2844926A CA 2844926 A CA2844926 A CA 2844926A CA 2844926 A1 CA2844926 A1 CA 2844926A1
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Prior art keywords
engine
signal
electrical signal
engine speed
misfire
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CA2844926A
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English (en)
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CA2844926C (fr
Inventor
Eric G. Horlbeck
John Thompson
Emery Carr
Allen C. Eberhardt
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Thompson Automotive Labs LLC
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Thompson Automotive Labs LLC
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Priority claimed from US13/835,067 external-priority patent/US9200981B2/en
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Publication of CA2844926A1 publication Critical patent/CA2844926A1/fr
Application granted granted Critical
Publication of CA2844926C publication Critical patent/CA2844926C/fr
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Abstract

Il est décrit un procédé danalyse dun moteur pour une activité de raté dallumage. Le procédé consiste à recevoir, par un processeur par lintermédiaire dune interface, un signal électrique associé à une pluralité de cycles du moteur à partir dun capteur. Le signal électrique se répète en synchronicité avec une révolution du vilebrequin du moteur ou un multiple dun mouvement de rotation du vilebrequin du moteur ou une fraction du mouvement de rotation vilebrequin du moteur. Le procédé comprend également le processeur déterminant des pointes dénergie dans le signal électrique lié aux allumages des cylindres dans le moteur, la production destimations de la vitesse du moteur en fonction de lécart entre les pointes dénergie et lanalyse des anomalies dans les estimations de la vitesse du moteur pour cerner une activité de raté dallumage. Le procédé peut permettre au moteur dêtre analysé aux fins dune activité de raté dallumage même si le moteur dépasse la portée des systèmes de diagnostic embarqués (OBD II).
CA2844926A 2013-03-15 2014-03-06 Procedes et appareil d'analyse de moteur utilisant des signaux electriques internes Active CA2844926C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/835,067 2013-03-15
US13/835,067 US9200981B2 (en) 2011-08-10 2013-03-15 Methods and apparatus for engine analysis using internal electrical signals

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CA2844926A1 true CA2844926A1 (fr) 2014-09-15
CA2844926C CA2844926C (fr) 2020-09-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110291472A (zh) * 2017-03-09 2019-09-27 欧姆龙株式会社 伺服参数调整装置以及伺服参数调整方法
US11222379B2 (en) * 2016-12-15 2022-01-11 Snap-On Incorporated Methods and systems for automatically generating repair orders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11222379B2 (en) * 2016-12-15 2022-01-11 Snap-On Incorporated Methods and systems for automatically generating repair orders
CN110291472A (zh) * 2017-03-09 2019-09-27 欧姆龙株式会社 伺服参数调整装置以及伺服参数调整方法

Also Published As

Publication number Publication date
CA2844926C (fr) 2020-09-08

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Effective date: 20190306