Abstract:
Die Erfindung betrifft ein Verfahren zur Zustandsüberwachung einer Antriebsanordnung (1). Das Verfahren umfassend folgende Schritte, • Erfassen von Messwerten verschiedener Parameter durch mehrere Sensoren (7, 8, 9, 10, 11) zu definierten Zeitpunkten, • Abspeichern von jeweils zumindest einer zeitabhängigen Messwertreihe (15, 16,17, 18, 19) zu jedem Parameter in einem Datenspeicher (14), • Auswerten der Messwertreihen (15, 16,17, 18, 19) durch eine Steuereinrichtung (13) zum Zweck einer Zustandsüberwachung zumindest einer Komponente der Antriebsanordnung (10). Beim Auswerten einer ersten Messwertreihe (15, 16,17, 18, 19) werden nur die Messwerte berücksichtigt, bei denen die jeweils zeitgleich erfassten Messwerte zumindest einer zweiten Messwertreihe (15, 16,17, 18, 19) in einem bestimmbaren Messwertbereich liegen. Ferner wird eine entsprechende Antriebsanordnung (1) zur Durchführung eines solchen Verfahrens angegeben.
Abstract:
An engine oil dipstick for monitoring an internal combustion engine comprises a processor and a sensor module. The sensor module is configured to sense a characteristic of the internal combustion engine and to output data representative of the sensed characteristic to the processor. The engine oil dipstick is configured to provide a housing for the processor. The processor is configured to determine a value representative of the firing frequency of the internal combustion engine based on the output data.
Abstract:
The present invention relates to the technology of gasoline direct injection (GDI) in automotive engines. In this context, the present invention provides a method for maximizing the formation of deposits in injector nozzles of GDI engines, said method comprising at least one test cycle, each test cycle comprising at least one testing step in which a predetermined condition of speed and load of the GDI engine is maintained for a specified period of time, wherein, in said cycle, in at least one testing step, the engine speed is maintained between 1300 and 3700 rpm, the engine load is maintained between 10 and 80% and the specified period of time is from 10 to 200 minutes. Thus, the method of the present invention is able to reproduce severe conditions of deposition of material in a few days, so that, in a short period of time, the test fuel can be assessed for tendency to form deposits.
Abstract:
An interface circuit assembly for use with an electronic control unit and oxygen sensor of an internal combustion engine. The assembly includes an input port coupled to receive a signal from the oxygen sensor and a processing unit coupled with the input port. The processing unit increases the signal to an output voltage as a function of hydrogen being provided to the internal combustion engine. An output port is coupled with the processing unit and provides the output voltage to the electronic control unit.
Abstract:
The invention relates to a system (100) for assisting with the diagnosis of the operating condition of at least one industrial rotary machine (M1, M2, M3), consisting of an industrial electric fan unit, or an industrial motorised pump unit including a pumping wheel, said diagnosis assistance system (100) including a base support (50) and a means (10) for receiving signals (S1, S2, S3) secured to the base mounting (50), the means (10) for receiving signals (S1, S2, S3) being designed such as to receive signals (S1, S2, S3) representing raw values (6) of at least one operating parameter of the rotary machine (M1, M2, M3), characterised in that the system (100) also includes a means (20) for interpreting the operating condition designed such as to automatically interpret the raw values (6) received and to generate a diagnosis (De) of the operating condition of the rotary machine (M1, M2, M3) in accordance with said raw values (6). The invention can be used in the field of rotary-machine maintenance.
Abstract:
Method to monitor an operating characteristic in a combustion engine, wherein a monitoring matrix divided into a number of sections for storage of information is created, wherein each section is associated with specific intervals of engine speed ω and torque requested from the engine T 1 . When the engine is used during an operational time window with a determined duration, an operating characteristic is measured or estimated and associated with the monitoring matrix's respective section, associated with the current engine speed and the torque requested. For each section in the monitoring matrix at least one statistical parameter is calculated, describing said operating characteristic associated with this section during the current operational time window. The statistical parameter(s) are stored in the respective section. At the end of the operational time window, information is stored in the monitoring matrix in an individual storage matrix associated with said operational time window, wherein the monitoring matrix is emptied of information.
Abstract:
L'invention propose un procédé de diagnostic de défaillance d'un moteur suralimenté, Une première valeur estimée de la puissance de la turbine est calculée à partir d'un premier ensemble de paramètres associes au circuit d'admission d'air du moteur,, comprenant au moins la pression de l'air à l'entrée du compresseur, la pression cie suralimentation, le débit massique de l'air traversant le compresseur et fa température de l'air à l'entrée du compresseur. Une seconde valeur estimée est calculée à partir d'un second ensemble de paramètres dont certains sont associés au circuit d'échappement des gaz brûles du moteur. Cet ensemble comprend au moins la pression des gaz d'échappement à la sortie, de la turbine, le débit massique des gaz traversant la turbine, la température des gaz à l'entrée de la turbine, une position de l'actionneur actionnant les ailettes de la turbine, et le régime de rotation du turbocompresseur. L'invention prévoit de calculer le rapport de la seconde valeur estimée divisée par la première valeur estimée, et de comparer ce rapport à un seuil prédéfini, au-delà duquel on conclut à une défaillance du moteur suralimenté, On alerte alors le conducteur, par exemple en allumant un voyant au tableau de bord du véhicule. L'invention propose aussi un moteur à combustion interne équipé d'un turbocompresseur à géométrie variable, apte à la mise en oeuvre du procédé de diagnostic de défaillance.
Abstract:
Procédé pour extraire des informations utiles pour le contrôle d'un moteur à combustion interne, basé sur des signatures graphiques. On acquiert un signal portant au moins une information relative au fonctionnement du moteur. Puis, on transforme, pour chaque cycle moteur, ce signal en une signature graphique, traduisant un ensemble de traits caractéristiques du signal sous forme d'un graphique simple à analyser. On détermine ensuite au moins un attribut de cette signature, à partir duquel on estime l'information pertinente, à l'aide d'une relation préalablement déterminée entre l'attribut et l'information. Enfin, on utilise l'information pour contrôler le moteur. Application au contrôle de moteur à combustion interne.
Abstract:
A voice-guided self-scanner for performing comparison analysis, diagnosis and preventive maintenance of a vehicle using detected data of the vehicle, which is detachably mounted in the vehicle to compare sensed values from a variety of sensors (10-13) installed in electronically controlled components (2) in the vehicle with reference values while driving, rapidly and accurately determine from the compared results whether faults are currently or potentially present in the electronically controlled components and output voice messages about the determined results to a driver upon determining that faults are currently or potentially present in the electronically controlled components. The voice-guided self-scanner comprises a controller (40) for performing comparison operations for sense signals from the sensors (10-13) and determining from the compared results whether faults are present in the electronically controlled components (2) and sensors (10-13) and whether driving practices of the driver are safe or dangerous.