DE19819499A1 - Fault detection system for motor vehicle engine and connected units - Google Patents
Fault detection system for motor vehicle engine and connected unitsInfo
- Publication number
- DE19819499A1 DE19819499A1 DE1998119499 DE19819499A DE19819499A1 DE 19819499 A1 DE19819499 A1 DE 19819499A1 DE 1998119499 DE1998119499 DE 1998119499 DE 19819499 A DE19819499 A DE 19819499A DE 19819499 A1 DE19819499 A1 DE 19819499A1
- Authority
- DE
- Germany
- Prior art keywords
- detection system
- car radio
- engine
- fault detection
- noise
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
-
- 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
- G01M15/12—Testing internal-combustion engines by monitoring vibrations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Description
Diese Erfindung betrifft ein System zur Erkennung von Feh lern, die bei Kfz-Motoren und an sie angeschlossenen Aggrega ten auftreten können.This invention relates to a system for detecting flaws learn the motor vehicle engines and units connected to them can occur.
Kraftfahrzeuge, die dem heutigen technischen Standard ent sprechen, sind mit Kontrolleinrichtungen ausgestattet, die es dem Fahrer auch während der Fahrt ermöglichen, die wichtigs ten Motorfunktionen wie Öldruck oder Temperatur am Armaturen brett abzulesen. Sehr viele Fehlerquellen am Motor oder ihm angeschlossenen Aggregaten werden aber dadurch nicht er faßt, wie z. B. zu großes Ventilspiel, schleifende Steuerket ten oder -riemen, Lagerschäden an Lichtmaschinen oder Was serpumpen, geringe Keilriemenspannungen, undichter Auspuff und anderes. Solche Fehler können Folgeschäden und daraus resultierend hohe Reparaturkosten verursachen, weshalb ihre frühzeitige Aufdeckung sehr wichtig ist. Normalerweise werden heute solche Schäden vom Fahrzeuginneren aus kaum wahrgenommen, da eine sehr gute Schallisolierung das Motorge räusch im Fahrzeuginneren auf ein Minimum reduziert. Zum an deren tritt erfahrungsgemäß bei Fahrern, die längere Zeit das gleiche Fahrzeug benutzen, ein Gewöhnungseffekt ein, das heißt, sie gewöhnen sich an ein sich langsam einschleichendes Fehlverhalten, bzw. an die damit verbundene langsame Verän derung der Geräuschemission. So können im normalen Fahrerall tag Fehler übersehen werden.Motor vehicles that meet today's technical standards speak are equipped with control devices that it allow the driver to drive even while driving, which is important engine functions such as oil pressure or valve temperature board read. Very many sources of error on the engine or aggregates connected to it do not become he summarizes how z. B. valve clearance too large, dragging control chain ten or belts, bearing damage to alternators or what water pumps, low V-belt tension, leaky exhaust and other things. Such errors can result in consequential damage result in high repair costs, which is why their early detection is very important. Usually Such damage is hardly ever seen from inside the vehicle perceived because of a very good sound insulation of the engine Noise inside the vehicle is reduced to a minimum. To start experience has shown that this occurs with drivers who use the vehicle for a long use the same vehicle, a habituation effect that means they get used to a slowly creeping in Malpractice, or the associated slow change change in noise emissions. So in normal driving Tag errors are overlooked.
Der im Patentanspruch angegebenen Erfindung liegt die Aufga be zugrunde, ein Fehlererkennungssystem im Kraftfahrzeug zu installieren, das es dem Fahrer erleichtert oder überhaupt erst ermöglicht, bereits vor dem Totalausfall des Motors oder angeschlossenen Aggregates einen sich anbahnenden Fehler aus zumachen. Dadurch können u. U. mit hohen Kosten verbundene Folgeschäden vermieden werden.The invention specified in the claim is the task be based on a fault detection system in the motor vehicle too install that makes it easier for the driver or at all only made possible before the total failure of the engine or connected units from an impending error close. This can u. U. associated with high costs Consequential damage can be avoided.
Die Erfindung macht sich die Tatsache zunutze, daß viele Tei le eines Motors oder Aggregates im Betrieb Geräusche erzeu gen, die für sie charakteristisch sind. Beim Auftreten be stimmter Fehler verändert sich das teiletypische Geräuschbild und verschafft so die Möglichkeit, die Fehlerquelle zu iden tifizieren. Dieses setzt allerdings voraus, daß die Geräu sche auch, und vor allem während der Fahrt im Fahrzeugin neren, auszumachen sind. Die vorher erwähnte, gute Schalliso lierung und während der Fahrt die zusätzliche Dominanz ande rer Fahrgeräusche, die durch den Fahrwind und das Abrollen der Reifen erzeugt werden, macht dieses weitgehend unmöglich. Deshalb werden der Erfindung nach in Motornähe und in Nähe geräuschemittierender Aggregate Mikrofone installiert, die den dort auftretenden spezifischen Schallpegel aufnehmen. Das empfangene Signal wird in das Fahrzeug innere geleitet und dort einem Mikrofonverstärker zugeführt. Dieser gibt das ver stärkte Signal direkt über das Autoradio oder einen separaten Endverstärker an die Lautsprecher. Über Umschalter können die einzelnen Mikrofone angewählt werden sowie der Betrieb des Autoradios oder des Fehlererkennungssystems.The invention takes advantage of the fact that many parts le of an engine or unit generate noise during operation conditions that are characteristic of them. When occurrence be correct error changes the part-typical noise pattern and thus provides the opportunity to identify the source of the error certify. However, this presupposes that the Geräu also, and especially while driving in the vehicle other, can be made out. The good Schalliso mentioned before and the additional dominance while driving Driving noises caused by the driving wind and rolling the tire that is produced makes this largely impossible. Therefore, according to the invention, close to the engine and close noise-emitting units microphones installed, which record the specific sound level occurring there. The received signal is directed into the vehicle and inside fed to a microphone amplifier there. This gives the ver strengthened signal directly through the car radio or a separate one Power amplifier to the speakers. The switch can individual microphones can be selected and the operation of the Car radios or the fault detection system.
Weiterhin werden im Autoradio oder im zusätzlichen Endver stärker eingebaute Tonblenden dazu benutzt, das Frequenzspek trum auf das zu beobachtende Geräusch einzugrenzen, indem störende Nebengeräusche ausgefiltert oder gedämpft werden.Furthermore, in the car radio or in the additional endver more built-in sound screens used to the frequency spec limit the noise to be observed by annoying background noises are filtered out or dampened.
Auf diese Weise kann sich der Fahrer jederzeit überzeugen, ob außergewöhnliche Geräuschveränderungen eingetreten sind, die auf Fehler schließen lassen.In this way, the driver can convince himself at any time whether exceptional noise changes have occurred, that suggest errors.
Ein weiteres Merkmal der Erfindung ist die Verwendung eines Referenzsignales als Hilfsmittel zur Fehlererkennung. Wie vorher erwähnt, erschwert der Gewöhnungseffekt das Erkennen von sich langsam einschleichenden Fehlern. Der Erfindung zu folge wird dem abgeholfen, indem ein Normgeräusch auf eine Kassette gespeichert wird. Die Aufnahme dieses Geräusches ge schieht über die eingebauten Mikrofone und z. B. einen exter nen Kassettenrekorder mit Aufnahmeteil. Das Normgeräusch gibt den Geräuschzustand des Motors und der angeschlossenen Aggre gate im störungsfreien Fall wieder, z. B. im Leerlauf oder im definierten Fahrbetrieb. Durch diese Kassette, die über das Autoradio abgespielt werden kann, kann der Fahrer jederzeit einen Vergleich mit dem augenblicklichen Zustand erhalten.Another feature of the invention is the use of a Reference signals as an aid for error detection. How previously mentioned, the habituation effect makes recognition difficult of slowly creeping mistakes. The invention too follow up is remedied by placing a standard sound on a Cassette is saved. The recording of this sound ge looks over the built-in microphones and z. B. an external NEN cassette recorder with recording part. The norm sound gives the noise level of the engine and the connected units gate in trouble-free case again, e.g. B. at idle or in defined driving operation. Through this cassette that over the driver can play the car radio a comparison with the current state at any time receive.
Ein weiteres, vorteilhaftes Merkmal der Erfindung liegt im akustischen Bereich. Für viele Fahrer, vor allem sportlicher Natur, steigert das Motorgeräusch ihres Fahrzeuges das Fahr erlebnis. Sie können es im Fahrzeuginneren aber nur gedämpft wahrnehmen. Durch die Erfindung erhalten sie die Möglichkeit, das Geräusch ins Fahrzeuginnere zu holen und es außerdem nach Belieben zu verstärken und in seinen Höhen und Tiefen zu ver ändern, es damit dem persönlichen Empfinden anzupassen. Auch ein kräftigerer Motor kann auf diese Weise simuliert werden.Another advantageous feature of the invention lies in acoustic range. For many drivers, especially sporty Nature, the engine noise of your vehicle increases driving experience. You can only dampen it inside the vehicle perceive. The invention gives them the opportunity to bring the noise inside the vehicle and also to follow it To amplify at will and to ver in its ups and downs change to adapt it to personal feelings. Also a more powerful engine can be simulated in this way.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998119499 DE19819499A1 (en) | 1998-04-30 | 1998-04-30 | Fault detection system for motor vehicle engine and connected units |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998119499 DE19819499A1 (en) | 1998-04-30 | 1998-04-30 | Fault detection system for motor vehicle engine and connected units |
Publications (1)
Publication Number | Publication Date |
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DE19819499A1 true DE19819499A1 (en) | 1999-11-04 |
Family
ID=7866390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE1998119499 Withdrawn DE19819499A1 (en) | 1998-04-30 | 1998-04-30 | Fault detection system for motor vehicle engine and connected units |
Country Status (1)
Country | Link |
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DE (1) | DE19819499A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1762831A1 (en) * | 2005-09-13 | 2007-03-14 | Rolls-Royce plc | Health monitoring of a mechanical system |
WO2008133526A1 (en) * | 2007-04-30 | 2008-11-06 | National Oilwell Norway As | Method for detection of a malfunction related to a fluid affected component in a piston machine |
CN106644497A (en) * | 2015-11-02 | 2017-05-10 | 北京爱德盛业科技有限公司 | Method for detecting vehicle based on built-in sensor of intelligent mobile phone |
DE102020108861A1 (en) | 2020-03-31 | 2021-09-30 | Audi Aktiengesellschaft | Method for determining a condition of a component |
CN114112401A (en) * | 2021-11-10 | 2022-03-01 | 中国人民解放军陆军炮兵防空兵学院 | Engine fault diagnosis method of LSTM fault diagnosis model based on spectrogram |
Citations (9)
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DE3033990A1 (en) * | 1980-09-10 | 1982-04-15 | GeWerTec Gesellschaft für Werkstofftechnik mbH, 4600 Dortmund | Sound-emission locator and analyser for non-destructive testing - has test head containing acousto-electric transducers to determine direction of incident sound pulses |
DE3201897A1 (en) * | 1982-01-22 | 1983-08-18 | Daimler-Benz Ag, 7000 Stuttgart | Method for fault diagnosis of motor vehicles and device to carry out the method |
DE3245505C2 (en) * | 1982-12-09 | 1985-11-14 | Rheinisch-Westfälischer Technischer Überwachungsverein e.V ., 4300 Essen | Procedure for early damage detection |
DD238515A3 (en) * | 1984-01-04 | 1986-08-27 | Ifa Automobilwerke Veb | DEVICE FOR MEASURING THE MUFFLER UNIT OF EXHAUST GASES IN MOTOR VEHICLES |
EP0308526A1 (en) * | 1987-09-23 | 1989-03-29 | LuK Fahrzeug-Hydraulik GmbH & Co. KG | Noise assessment of vehicle pumps |
DE3112122C2 (en) * | 1981-03-27 | 1989-10-12 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
GB2225163A (en) * | 1988-11-04 | 1990-05-23 | Daifuku Kk | Testing internal combustion engines for abnormal noise or vibration |
EP0570229A2 (en) * | 1992-05-14 | 1993-11-18 | Auto Konig | Abnormal sound detecting apparatus |
DE19505052A1 (en) * | 1994-04-20 | 1995-10-26 | Fraunhofer Ges Forschung | Anti-theft device for vehicles in parking garages |
-
1998
- 1998-04-30 DE DE1998119499 patent/DE19819499A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3033990A1 (en) * | 1980-09-10 | 1982-04-15 | GeWerTec Gesellschaft für Werkstofftechnik mbH, 4600 Dortmund | Sound-emission locator and analyser for non-destructive testing - has test head containing acousto-electric transducers to determine direction of incident sound pulses |
DE3112122C2 (en) * | 1981-03-27 | 1989-10-12 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
DE3201897A1 (en) * | 1982-01-22 | 1983-08-18 | Daimler-Benz Ag, 7000 Stuttgart | Method for fault diagnosis of motor vehicles and device to carry out the method |
DE3245505C2 (en) * | 1982-12-09 | 1985-11-14 | Rheinisch-Westfälischer Technischer Überwachungsverein e.V ., 4300 Essen | Procedure for early damage detection |
DD238515A3 (en) * | 1984-01-04 | 1986-08-27 | Ifa Automobilwerke Veb | DEVICE FOR MEASURING THE MUFFLER UNIT OF EXHAUST GASES IN MOTOR VEHICLES |
EP0308526A1 (en) * | 1987-09-23 | 1989-03-29 | LuK Fahrzeug-Hydraulik GmbH & Co. KG | Noise assessment of vehicle pumps |
GB2225163A (en) * | 1988-11-04 | 1990-05-23 | Daifuku Kk | Testing internal combustion engines for abnormal noise or vibration |
EP0570229A2 (en) * | 1992-05-14 | 1993-11-18 | Auto Konig | Abnormal sound detecting apparatus |
DE19505052A1 (en) * | 1994-04-20 | 1995-10-26 | Fraunhofer Ges Forschung | Anti-theft device for vehicles in parking garages |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1762831A1 (en) * | 2005-09-13 | 2007-03-14 | Rolls-Royce plc | Health monitoring of a mechanical system |
US7591183B2 (en) | 2005-09-13 | 2009-09-22 | Rolls-Royce Plc | Gas turbine engine with a plurality of bleed valves |
WO2008133526A1 (en) * | 2007-04-30 | 2008-11-06 | National Oilwell Norway As | Method for detection of a malfunction related to a fluid affected component in a piston machine |
US8601874B2 (en) | 2007-04-30 | 2013-12-10 | National Oilwell Norway As | Method for detection of a malfunction related to a fluid affected component in a piston machine |
CN106644497A (en) * | 2015-11-02 | 2017-05-10 | 北京爱德盛业科技有限公司 | Method for detecting vehicle based on built-in sensor of intelligent mobile phone |
CN106644497B (en) * | 2015-11-02 | 2020-01-14 | 北京爱德盛业科技有限公司 | Method for detecting vehicle based on built-in sensor of smart phone |
DE102020108861A1 (en) | 2020-03-31 | 2021-09-30 | Audi Aktiengesellschaft | Method for determining a condition of a component |
CN114112401A (en) * | 2021-11-10 | 2022-03-01 | 中国人民解放军陆军炮兵防空兵学院 | Engine fault diagnosis method of LSTM fault diagnosis model based on spectrogram |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8122 | Nonbinding interest in granting licenses declared | ||
8139 | Disposal/non-payment of the annual fee |