EP0798456B1 - Method of operation of an internal combustion engine using a control apparatus - Google Patents
Method of operation of an internal combustion engine using a control apparatus Download PDFInfo
- Publication number
- EP0798456B1 EP0798456B1 EP97102393A EP97102393A EP0798456B1 EP 0798456 B1 EP0798456 B1 EP 0798456B1 EP 97102393 A EP97102393 A EP 97102393A EP 97102393 A EP97102393 A EP 97102393A EP 0798456 B1 EP0798456 B1 EP 0798456B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- performance data
- vehicle
- actual
- control device
- stored
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2496—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories the memory being part of a closed loop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2487—Methods for rewriting
Definitions
- the invention relates to a method with the features of the preamble of Claim 1.
- US-A-5 111 686 describes an apparatus provided in a vehicle Fault diagnosis. This device diagnoses and stores illegal states of a Electronic control device used to control the vehicle. The device for Fault diagnosis also compares the current operating conditions of the vehicle with the Operating conditions that existed at the time of the irregular conditions.
- DE-A-38 29 949 describes a method for operating an electrical pressure medium service brake device and a control device for performing the method known.
- the control device includes several in parallel and independently of each other Acting safety functions that prevent the brakes from operating incorrectly do. Test results affecting safety are in a non-volatile Semiconductor memory writable. Any that have occurred can also be found in the memory Error states with operating parameters and date and time can be written.
- US-A-5 491 631 is concerned with a fault diagnosis system for vehicles manufactured by different, vehicle equipment-specific fault diagnosis programs makes.
- ECU electronice control devices
- a memory is provided to make vehicles with different equipment the same electronic control devices (ECU) differentiate and use one to be able to analyze the respective equipment adapted to the fault diagnosis system a memory.
- the relevant vehicle is stored in this memory individualizing code stored on the basis of that for the vehicle in question suitable fault diagnosis program can be determined.
- the invention has for its object to a method of the type mentioned create, with the help of changing the target performance data in a simple manner is noticeable.
- the vehicle user By saving the actual performance data when this is from the target performance data deviate, the proof of a change in the target performance data without further possible.
- the vehicle user also has the opportunity to use the Proof that, for example, its target performance data has not changed and can then give his justified vis-à-vis the vehicle manufacturer or the insurance company Evidence of claims.
- the possibility of a change that cannot be completely ruled out the performance data without the influence and intervention of the vehicle user, for example when exchanging the control device and a workshop error can be for the vehicle user also lead easily. If there is a change of ownership, it will the subsequent owner possible, a possible excessive stress to recognize the internal combustion engine on the basis of the stored actual performance data. He can then refrain from buying the vehicle, for example.
- the previous user can use non-saved actual performance data proof of the proper operation of the internal combustion engine to lead. To a certain extent, the buyer of a vehicle therefore has the security purchase an internal combustion engine with a normal service life.
- the information about the temporal effectiveness delivers in particular day, Month and / or year is a good measure of the extent to which the internal combustion engine was overburdened. More ways to do this deliver consist of recording the mileage with which the vehicle with the changed actual performance data was operated.
- the storage of the actual performance data within the control unit enables the comparison of target and actual performance data using the control device perform yourself.
- the redundant storage at a point outside the Control device makes it possible to replace the control device a possible misuse or a change in the target performance data to be able to determine beyond any doubt.
- target performance data with the associated actual data can also be saved. If the manipulation is not carried out by a changed software program, but by "greasing", i.e. by changing the intake air temperature sensor resistance value, this can be done by comparing the intake air and the outside temperature in a stable condition of the vehicle, e.g. at a vehicle speed above 20km / h. Both temperature signals are available via an internal data bus. An implausibility can in addition Memory are documented.
- the possibility of documenting any manipulations can be documented and to be recognized later, can be further improved.
- the Control device with a vehicle-specific identifier, for example in the form the chassis number.
- This identifier can also be used in an additional Memory, for example the memory of another control unit become.
- the control unit is used, for example, in the context of an electronic Immobilizer used. Every time the vehicle is started, it is saved there Identifier compared with the current value of the identifier in the control device. If there is no match, the vehicle can be started, for example can be prevented or the discrepancy documented become.
- this identifier can also be an additional one times in another memory. This increases the Protection against improper simultaneous replacement of the control device and the control unit contained in the additional memory.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Description
Die Erfindung bezieht sich auf ein Verfahren mit den Merkmalen des Oberbegriffs von Patentanspruch 1.The invention relates to a method with the features of the preamble of Claim 1.
Bei Steuereinrichtungen für moderne Brennkraftmaschine ist es grundsätzlich möglich, die Soll-Leistungsdaten zu verändem. Dies geschieht beispielsweise im Rahmen von Service-Maßnahmen. Damit aber läßt sich die Gefahr einer Veränderung der Soll-Leistungsdaten ohne die Kontrolle des Fahrzeugherstellers nicht ausschließen. Erfolgt diese Veränderung unsachgemäß, so besteht die Gefahr von Überlastungen der Brennkraftmaschine mit der Folge, von Maschinenschäden. Der Nutzer eines derartigen Fahrzeugs läuft ferner Gefahr, die Betriebserlaubnis oder den Versicherungsschutz für das Fahrzeug zu verlieren.In the case of control devices for modern internal combustion engines, it is basically possible to use the Change target performance data. This happens, for example, as part of service measures. However, this eliminates the risk of a change in the target performance data without excluding the control of the vehicle manufacturer. This change takes place improper, there is a risk of overloading the engine with the Consequence of machine damage. The user of such a vehicle also runs the risk of to lose the operating license or insurance coverage for the vehicle.
US-A-5 111 686 beschreibt eine in einem Fahrzeug vorgesehene Vorrichtung zur Fehlerdiagnose. Diese Vorrichtung diagnostiziert und speichert regelwidrige Zustände einer Elektronik-Kontrollvorrichtung, die der Steuerung des Fahrzeugs dient. Die Vorrichtung zur Fehlerdiagnose vergleicht ferner die aktuellen Betriebsbedingungen des Fahrzeugs mit den Betriebsbedingungen, die zum Zeitpunkt der regelwidrigen Zustände vorlagen.US-A-5 111 686 describes an apparatus provided in a vehicle Fault diagnosis. This device diagnoses and stores illegal states of a Electronic control device used to control the vehicle. The device for Fault diagnosis also compares the current operating conditions of the vehicle with the Operating conditions that existed at the time of the irregular conditions.
Aus der DE-A-38 29 949 ist ein Verfahren zum Betrieb einer elektrischen Druckmittel-Betriebsbremseinrichtung und eine Steuervorrichtung zur Durchführung des Verfahrens bekannt. Die Steuervorrichtung beinhaltet mehrere parallel und unabhängig voneinander wirkende Sicherungsfunktionen, die eine elektrische Fehlbetätigung der Bremsen unmöglich machen. Die Sicherheit beeinträchtigende Prüfergebnisse sind in einem nichtflüchtigen Halbleiterspeicher einschreibbar. In dem Speicher können zudem aufgetretene Fehlerzustände mit Betriebsparametern und Datum und Uhrzeit eingeschrieben werden.DE-A-38 29 949 describes a method for operating an electrical pressure medium service brake device and a control device for performing the method known. The control device includes several in parallel and independently of each other Acting safety functions that prevent the brakes from operating incorrectly do. Test results affecting safety are in a non-volatile Semiconductor memory writable. Any that have occurred can also be found in the memory Error states with operating parameters and date and time can be written.
US-A-5 491 631 beschäftigt sich mit einem Fehlerdiagnosesystem für Fahrzeuge, das von unterschiedlichen, fahrzeugausstattungsspezifischen Fehlerdiagnoseprogrammen Gebrauch macht. Um Fahrzeuge mit unterschiedlicher Ausstattung aber an sich gleichen elektronischen Steuereinrichtungen (ECU) unterscheiden und unter Verwendung eines an die jeweilige Ausstattung angepassten Fehlerdiagnosesystems analysieren zu können, ist ein Speicher vorgesehen. In diesem Speicher wird ein das betreffende Fahrzeug individualisierender Code gespeichert, anhand dem das für das betreffende Fahrzeug geeignete Fehlerdiagnoseprogramm ermittelt werden kann.US-A-5 491 631 is concerned with a fault diagnosis system for vehicles manufactured by different, vehicle equipment-specific fault diagnosis programs makes. To make vehicles with different equipment the same electronic control devices (ECU) differentiate and use one to be able to analyze the respective equipment adapted to the fault diagnosis system a memory is provided. The relevant vehicle is stored in this memory individualizing code stored on the basis of that for the vehicle in question suitable fault diagnosis program can be determined.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, mit dessen Hilfe die Veränderung der Soll-Leistungsdaten auf einfache Weise feststellbar ist.The invention has for its object to a method of the type mentioned create, with the help of changing the target performance data in a simple manner is noticeable.
Die Erfindung löst diese Aufgabe durch die kennzeichnenden Merkmale des Patentanspruchs 1.The invention solves this problem by the characterizing features of Claim 1.
Durch die Abspeicherung der Ist-Leistungsdaten dann, wenn diese von den Soll-Leistungsdaten abweichen, wird der Nachweis einer Änderung der Soll-Leistungsdaten ohne weiteres möglich. Der Fahrzeugbenutzer erhält andererseits damit auch die Möglichkeit, den Nachweis zu führen, daß beispielsweise seine Soll-Leistungsdaten nicht verändert sind und kann dann gegenüber dem Fahrzeughersteller bzw. der Versicherung seine berechtigten Ansprüche belegen. Auch die nicht völlig auszuschließende Möglichkeit einer Veränderung der Leistungsdaten ohne Einfluß und Zutun des Fahrzeugbenutzers, beispielsweise beim Austausch der Steuereinrichtung und einem Werkstattfehler läßt sich für den Fahrzeugbenutzer ebenfalls ohne weiteres führen. Bei einem Besitzerwechsel wird es dem nachfolgenden Besitzer möglich, eine mögliche übermäßige Beanspruchung der Brennkraftmaschine anhand der abgespeicherten Ist-Leistungsdaten zu erkennen. Er kann dann beispielsweise von einem Kauf des Fahrzeugs Abstand nehmen. Andererseits kann der Vorbenutzer anhand von nicht abgespeicherten Ist-Leistungsdaten den Nachweis des ordnungsgemäßen Betriebs der Brennkraftmaschine führen. Der Käufer eines Fahrzeugs erhält damit in gewisser Weise die Sicherheit, eine Brennkraftmaschine mit normaler Lebensdauer zu erwerben.By saving the actual performance data when this is from the target performance data deviate, the proof of a change in the target performance data without further possible. On the other hand, the vehicle user also has the opportunity to use the Proof that, for example, its target performance data has not changed and can then give his justified vis-à-vis the vehicle manufacturer or the insurance company Evidence of claims. Also the possibility of a change that cannot be completely ruled out the performance data without the influence and intervention of the vehicle user, for example when exchanging the control device and a workshop error can be for the vehicle user also lead easily. If there is a change of ownership, it will the subsequent owner possible, a possible excessive stress to recognize the internal combustion engine on the basis of the stored actual performance data. He can then refrain from buying the vehicle, for example. On the other hand, the previous user can use non-saved actual performance data proof of the proper operation of the internal combustion engine to lead. To a certain extent, the buyer of a vehicle therefore has the security purchase an internal combustion engine with a normal service life.
Weitere Ausgestaltungen und vorteilhafte Verbesserungen der Erfindung sind Gegenstand der weiteren Patentansprüche.Further refinements and advantageous improvements of the invention are the subject of the other claims.
So liefert die Information über die zeitliche Wirksamkeit dabei insbesondere Tag, Monat und/oder Jahr ein gutes Maß dafür, in welchem Umfang die Brennkraftmaschine übermäßig belastet wurde. Weitere Möglichkeiten, hierzu Informationen zu liefern, bestehen darin, die Laufleistung festzuhalten, mit der das Fahrzeug mit den veränderten Ist-Leistungsdaten betrieben wurde.Thus, the information about the temporal effectiveness delivers in particular day, Month and / or year is a good measure of the extent to which the internal combustion engine was overburdened. More ways to do this deliver consist of recording the mileage with which the vehicle with the changed actual performance data was operated.
Die Abspeicherung der Ist-Leistungsdaten innerhalb des Steuergeräts ermöglicht, den Vergleich von Soll- und Ist-Leistungsdaten anhand der Steuereinrichtung selbst durchzuführen. Die Abspeicherung redundant an einer Stelle außerhalb der Steuereinrichtung hingegen ermöglicht es, auch bei einem Austausch der Steuereinrichtung einen evtl. Mißbrauch oder aber auch eine Änderung der Soll-Leistungsdaten zweifelsfrei feststellen zu können.The storage of the actual performance data within the control unit enables the comparison of target and actual performance data using the control device perform yourself. The redundant storage at a point outside the Control device, on the other hand, makes it possible to replace the control device a possible misuse or a change in the target performance data to be able to determine beyond any doubt.
Die in den Patentansprüchen 6 und 7 angegebenen Möglichkeiten beziehen sich auf besondere Brennkraftmaschinentypen wie Diesel- oder aufgeladene' Otto-Brennkraftmaschinen und bieten mit wenig Daten eine hohe Transparenz für eine evtl. Leistungssteigerung der Brennkraftmaschine. Die im Patentanspruch 8 genannten Merkmale bieten besonders bei Otto-Brennkraftrnaschinen diese Möglichkeit. The possibilities specified in claims 6 and 7 relate special types of internal combustion engines such as diesel or turbocharged 'Otto' internal combustion engines and offer a high level of transparency for one with little data possible increase in performance of the internal combustion engine. The mentioned in claim 8 Features offer this possibility, especially with Otto internal combustion engines.
Ferner können auch andere Soll-Leistungsdaten mit den zugehörigen Ist-Daten abgespeichert werden. Erfolgt die Manipulation nicht durch ein geändertes Software-Programm, sondern durch "Anfetten", d.h. durch Ändern des Ansauglufttemperaturfühler-Widerstandswertes, so kann dies durch Vergleich der Ansaugluftund der Außentemperatur in einem stabilen Zustand des Fahrzeugs, z.B. bei einer über 20km/h liegenden Fahrzeuggeschwindigkeit erfolgen. Beide Temperatursignale sind über einen internen Datenbus verfügbar. Eine Unplausibilität kann im zusätzlichen Speicher dokumentiert werden.Furthermore, other target performance data with the associated actual data can also can be saved. If the manipulation is not carried out by a changed software program, but by "greasing", i.e. by changing the intake air temperature sensor resistance value, this can be done by comparing the intake air and the outside temperature in a stable condition of the vehicle, e.g. at a vehicle speed above 20km / h. Both temperature signals are available via an internal data bus. An implausibility can in addition Memory are documented.
Weitere Verbesserungen des erfindungsgemäßen Verfahrens bestehen darin, den Softwarestand des in der Steuereinrichtung eingesetzten Programms durch eine Prüfsumme zu dokumentieren und die Prüfsumme zusätzlich abzuspeichern. Hierfür kann wiederum der Speicher eines anderen, z.B. im Rahmen einer elektronischen Wegfahrsicherung eingesetzten Steuergeräts verwendet werden. Bei jedem Fahrzeugstart wird dieser Wert mit dem Wert in der Steuereinrichtung verglichen. Liegt ein neuer Wert vor, so wird dieser ebenfalls abgespeichert. Mit dieser Methode kann eindeutig festgestellt werden, ob ein korrekter Wert, d.h. der ursprüngliche Softwarestand, oder eine Manipulation vorliegt.Further improvements of the method according to the invention consist in the Software version of the program used in the control device by a Document the checksum and additionally save the checksum. For this, the memory of another, e.g. as part of an electronic Immobilizer used control unit can be used. With everyone Starting the vehicle, this value is compared with the value in the control device. If there is a new value, it is also saved. With this Method can be clearly determined whether a correct value, i.e. the original Software version, or manipulation is present.
Ergänzend oder alternativ kann die Möglichkeit, evtl. Manipulationen zu dokumentieren und nachträglich zu erkennen, noch weiter verbessert werden. Hierzu ist die Steuereinrichtung mit einer fahrzeugindividuellen Kennung, beispielsweise in Form der Fahrgestellnummer versehen. Auch diese Kennung kann in einem zusätzlichen Speicher, beispielsweise dem Speicher eines anderen Steuergeräts festgehalten werden. Das Steuergerät wird beispielsweise im Rahmen einer elektronischen Wegfahrsicherung verwendet. Bei jedem Fahrzeugstart wird die dort gespeicherte Kennung mit dem aktuellen Wert der Kennung in der Steuereinrichtung verglichen. Bei fehlender Übereinstimmung kann beispielsweise ein Starten des Fahrzeugs verhindert werden oder aber auch eine Dokumentation der Diskrepanz vorgenommen werden. In addition or alternatively, the possibility of documenting any manipulations can be documented and to be recognized later, can be further improved. For this is the Control device with a vehicle-specific identifier, for example in the form the chassis number. This identifier can also be used in an additional Memory, for example the memory of another control unit become. The control unit is used, for example, in the context of an electronic Immobilizer used. Every time the vehicle is started, it is saved there Identifier compared with the current value of the identifier in the control device. If there is no match, the vehicle can be started, for example can be prevented or the discrepancy documented become.
Diese Kennung kann ebenso wie die Soll-Leistungsdaten auch noch ein weiteres mal in einem anderen Speicher festgehalten werden. Dadurch erhöht sich der Schutz vor einem mißbräuchlichen gleichzeitigen Austausch der Steuereinrichtung und des den zusätzlichen Speicher enthaltenen Steuergeräts.Like the target performance data, this identifier can also be an additional one times in another memory. This increases the Protection against improper simultaneous replacement of the control device and the control unit contained in the additional memory.
Claims (9)
- A method of operating an engine of a vehicle by using a control device containing an electronic memory with preset performance data corresponding to the performance of the engine, characterised in that the set performance data are additionally stored in redundant form, the redundant set performance data are compared with the actual performance data relative to the performance of the engine and the actual performance data are stored in the vehicle if altered relative to the set performance data.
- A method according to claim 1, characterised in that the control device also contains an identification signal peculiar to the vehicle and the signal is also additionally stored.
- A method according to claim 1 or 2, characterised in that the actual storage data are stored with regard to their validity at a particular time.
- A method according to claim 3, characterised in that the information about validity at a particular time also contains the day, month and/or year.
- A method according to any of claims 1 to 4, characterised in that the actual performance data are stored in the control device.
- A method according to any of claims 1 to 5, characterised in that the set performance data are stored in redundant form in the vehicle outside the control device.
- A method according to any of claims 1 to 6, characterised in that the actual and the set performance data contain information about the maximum combustion pressure.
- A method according to claim 7, characterised in that the information contains the maximum value of the boost pressure and/or of the quantity injected.
- A method according to any of claims 1 to 5, characterised in that in the case of a spark-ignition engine the actual and the set performance data contain information about the associated quantities of fuel and the speeds of rotation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19612857A DE19612857A1 (en) | 1996-03-30 | 1996-03-30 | Method for operating an internal combustion engine with the aid of a control device |
| DE19612857 | 1996-03-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0798456A2 EP0798456A2 (en) | 1997-10-01 |
| EP0798456A3 EP0798456A3 (en) | 1999-05-12 |
| EP0798456B1 true EP0798456B1 (en) | 2003-09-24 |
Family
ID=7790054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97102393A Expired - Lifetime EP0798456B1 (en) | 1996-03-30 | 1997-02-14 | Method of operation of an internal combustion engine using a control apparatus |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0798456B1 (en) |
| DE (2) | DE19612857A1 (en) |
| ES (1) | ES2207692T3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7467035B2 (en) * | 2004-05-18 | 2008-12-16 | Haldex Brake Products Ltd. | Vehicle control system with redundant storage of vehicle control parameters |
| DE102004026582A1 (en) * | 2004-05-28 | 2005-12-15 | Robert Bosch Gmbh | Method for activating learning processes of a control unit and control unit |
| DE102011002805A1 (en) | 2011-01-18 | 2012-07-19 | Bayerische Motoren Werke Aktiengesellschaft | A method for detecting errors in an electronically controlled drive system of a motor vehicle |
| DE102011076682B4 (en) | 2011-05-30 | 2024-03-07 | Bayerische Motoren Werke Aktiengesellschaft | Method and safety concept for detecting errors in a drive system of a motor vehicle |
| DE102012201653B4 (en) | 2012-02-03 | 2024-05-29 | Bayerische Motoren Werke Aktiengesellschaft | Circuit arrangement in an electronic control unit of a motor vehicle for detecting errors |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3829949A1 (en) * | 1988-09-03 | 1990-03-15 | Daimler Benz Ag | METHOD FOR OPERATING AN ELECTRIC PRESSURE OPERATING BRAKE DEVICE AND CONTROL DEVICE FOR CARRYING OUT THE METHOD |
| US5111686A (en) * | 1990-02-26 | 1992-05-12 | Nippondenso Co., Ltd. | Fault diagnosis apparatus for mounting on a vehicle |
| DE4117393A1 (en) * | 1991-05-28 | 1992-12-03 | Kloeckner Humboldt Deutz Ag | DEVICE FOR CONTROLLING THE FUEL INJECTION OF AN INTERNAL COMBUSTION ENGINE |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3430551C2 (en) * | 1984-08-20 | 1997-10-23 | Bosch Gmbh Robert | Device for changing stored parameters in electronic control devices for in particular internal combustion engines |
| DE3720404C1 (en) * | 1987-06-19 | 1988-10-06 | Voest Alpine Automotive | Method and device for changing data in the parameter memory of a motor vehicle controller |
| JPS6483434A (en) * | 1987-09-22 | 1989-03-29 | Mitsubishi Electric Corp | Trouble shooting apparatus for vehicle controlling system |
| JPH0776724B2 (en) * | 1988-02-18 | 1995-08-16 | 富士重工業株式会社 | Vehicle diagnostic device |
| JP2987446B2 (en) * | 1989-06-29 | 1999-12-06 | 富士重工業株式会社 | Vehicle self-diagnosis device |
| JPH076434B2 (en) * | 1991-10-09 | 1995-01-30 | 株式会社ゼクセル | Electronic fuel injection device |
| US5491631A (en) * | 1991-12-25 | 1996-02-13 | Honda Giken Kogyo Kabushiki Kaisha | Fault diagnostic system for vehicles using identification and program codes |
-
1996
- 1996-03-30 DE DE19612857A patent/DE19612857A1/en not_active Withdrawn
-
1997
- 1997-02-14 ES ES97102393T patent/ES2207692T3/en not_active Expired - Lifetime
- 1997-02-14 EP EP97102393A patent/EP0798456B1/en not_active Expired - Lifetime
- 1997-02-14 DE DE59710764T patent/DE59710764D1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3829949A1 (en) * | 1988-09-03 | 1990-03-15 | Daimler Benz Ag | METHOD FOR OPERATING AN ELECTRIC PRESSURE OPERATING BRAKE DEVICE AND CONTROL DEVICE FOR CARRYING OUT THE METHOD |
| US5111686A (en) * | 1990-02-26 | 1992-05-12 | Nippondenso Co., Ltd. | Fault diagnosis apparatus for mounting on a vehicle |
| DE4117393A1 (en) * | 1991-05-28 | 1992-12-03 | Kloeckner Humboldt Deutz Ag | DEVICE FOR CONTROLLING THE FUEL INJECTION OF AN INTERNAL COMBUSTION ENGINE |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19612857A1 (en) | 1997-10-02 |
| ES2207692T3 (en) | 2004-06-01 |
| EP0798456A3 (en) | 1999-05-12 |
| EP0798456A2 (en) | 1997-10-01 |
| DE59710764D1 (en) | 2003-10-30 |
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