DE102004052860A1 - Sensor signals` transmitting device for motor vehicle`s electrical steering system, has two sensors connected with respective main processor and control processor by communication connections, which use different data communication types - Google Patents
Sensor signals` transmitting device for motor vehicle`s electrical steering system, has two sensors connected with respective main processor and control processor by communication connections, which use different data communication types Download PDFInfo
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- DE102004052860A1 DE102004052860A1 DE200410052860 DE102004052860A DE102004052860A1 DE 102004052860 A1 DE102004052860 A1 DE 102004052860A1 DE 200410052860 DE200410052860 DE 200410052860 DE 102004052860 A DE102004052860 A DE 102004052860A DE 102004052860 A1 DE102004052860 A1 DE 102004052860A1
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- processor
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- main processor
- sensor signals
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/0315—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for using multiplexing techniques
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Übertragung von Sensorsignalen in einem mechatronischen System.The The invention relates to an apparatus and a method for transmission of sensor signals in a mechatronic system.
Mechatronische Systeme wie beispielsweise Kraftfahrzeuge umfassen eine Vielzahl von Steuergeräten, die untereinander über ein Bussystem miteinander vernetzt sind. Diese Steuergeräte umfassen neben einem Hauptprozessor meist noch weitere Prozessoren, wie beispielsweise einen Überwachungsprozessor für den Hauptprozessor. Je nach Funktionalität der Steuergeräte sind diesen lokal Sensoren und/oder Aktoren zugeordnet. Insbesondere bei sicherheitsrelevanten Funktionen der Steuergeräte ist eine zuverlässige Übertragung von Sensorsignalen zu den Steuergeräten zu gewährleisten.mechatronic Systems such as automobiles include a variety of control devices, the one above the other a bus system are interconnected. These controllers include in addition to a main processor usually more processors, such as a monitoring processor for the Main processor. Depending on the functionality of the controllers are associated with them locally sensors and / or actuators. Especially in safety-related functions of the control units is a reliable transmission to ensure sensor signals to the control units.
Der Erfindung liegt daher das technische Problem zugrunde, eine Vorrichtung und ein Verfahren zur Übertragung von Sensorsignalen zu schaffen, mittels derer mit geringem schaltungstechnischen Aufwand die Übertragungssicherheit erhöht wird.Of the The invention is therefore based on the technical problem of a device and a method of transmission to provide sensor signals by means of which with little circuit complexity the transmission security elevated becomes.
Die Lösung des technischen Problems ergibt sich durch die Gegenstände mit den Merkmalen der Patentansprüche 1 und 7. Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.The solution the technical problem arises from the objects with the features of the claims 1 and 7. Further advantageous embodiments of the invention result from the dependent claims.
Hierzu sind dem mindestens einen Steuergerät zwei Sensoren zugeordnet, wobei das Steuergerät mindestens einen Hauptprozessor und mindestens einen weiteren Prozessor aufweist, die miteinander verbunden sind, wobei der erste Sensor mit dem Hauptprozessor und der zweite Sensor mit dem zweiten Prozessor über eine Kommunikationsverbindung miteinander verbunden sind, wobei für die beiden Kommunikationsverbindungen unterschiedliche Datenübertragungsarten genutzt werden. Hierdurch wird zum einen erreicht, dass die Datenübertragung redundant erfolgt, ohne einen wesentlichen Hardwareaufwand im Steuergerät, da als redundanter Prozessor ein ohnehin vorhandener weiterer Prozessor verwendet wird. Des Weiteren wird durch diese redundante Datenübertragung der Hauptprozessor nicht stärker von der Rechenleistung her belastet. Dies erlaubt eine Datenverarbeitung der Sensordaten in Echtzeit. Ein zusätzlicher Schritt zur Erhöhung der Datenübertragungssicherheit ist, dass für die beiden Kommunikationsverbindungen unterschiedliche Datenübertragungsarten gewählt werden, da sich insbesondere externe Störquellen bei unterschiedlichen Übertragungsarten unterschiedlich bemerkbar machen. Hierdurch kann besser sichergestellt werden, dass trotz einer Störquelle mindestens eine Datenübertragung zum Steuergerät einwandfrei ist.For this the at least one control unit is assigned two sensors, being the control unit at least one main processor and at least one further processor which are connected to each other, wherein the first sensor with the main processor and the second sensor with the second processor via a Communication links are interconnected, with the two Communication connections different types of data transmission be used. This achieves, on the one hand, that the data transmission is redundant takes place without a significant amount of hardware in the control unit, there as redundant processor used an already existing another processor becomes. Furthermore, this redundant data transmission the main processor is not stronger charged by the computing power. This allows data processing the sensor data in real time. An additional step to increase data transmission security is that for the two communication connections different data transmission types chosen be, because in particular external sources of interference with different types of transmission make different noticeable. This ensures better be that despite a source of interference at least one data transfer to the control unit is perfect.
In einer bevorzugten Ausführungsform sind die Sensoren unterschiedlich ausgebildet. Hierdurch wird erreicht, dass auch bereits bei der Datenerfassung eine höhere Sicherheit erreicht wird. Bevorzugt sind die beiden Sensoren daher derart ausgebildet, dass diese aufgrund unterschiedlicher physikalischer Prinzipien die Messdaten erfassen.In a preferred embodiment the sensors are designed differently. This will achieve that a higher degree of security is already achieved in the data collection. Preferably, the two sensors are therefore designed such that these due to different physical principles, the measured data to capture.
In einer weiteren bevorzugten Ausführungsform sind die beiden Kommunikationsverbindungen voneinander unabhängig ausgebildet. Dabei können diese beide durch Luftschnittstellen, beide durch Kabelverbindungen und/oder Kombinationen realisiert werden.In a further preferred embodiment the two communication links are formed independently of each other. They can do this both by air interfaces, both by cable connections and / or Combinations are realized.
In einer weiteren bevorzugten Ausführungsform ist der weitere Prozessor als Überwachungsprozessor ausgebildet.In a further preferred embodiment is the other processor as a monitoring processor educated.
In einer weiteren bevorzugten Ausführungsform sind die Datenübertragungsarten als PWM- und/oder Bi-Phase M- und/oder als analoge Signalübertragung ausgebildet. Prinzipiell kommen aber auch andere Signalübertragungsverfahren in Betracht. Vorzugsweise kommen jedoch zwei elektrische Übertragungsverfahren zur Anwendung, da dies die Modifikationen am Steuergerät reduziert. Weiter vorzugsweise kommen dabei zwei digitale Datenübertragungsarten zur Anwendung.In a further preferred embodiment are the data transmission types as PWM and / or Bi-phase M and / or as analog signal transmission educated. In principle, however, other signal transmission methods also come into consideration. Preferably, however, two electrical transmission methods for use, as this reduces the modifications to the control unit. Further preferably two digital data transmission types are used.
In einer weiteren bevorzugten Ausführungsform sind die Sensoren als Momentensensoren ausgebildet, die weiter vorzugsweise in einem elektrischen Lenkungssystem in einem Kraftfahrzeug zur Anwendung kommen.In a further preferred embodiment For example, the sensors are designed as moment sensors, which are more preferably in an electric steering system in a motor vehicle for use come.
Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispieles näher erläutert. Die einzige Figur zeigt ein schematisches Blockschaltbild einer Vorrichtung zur Übertragung von Sensorsignalen.The Invention will be described below with reference to a preferred embodiment explained in more detail. The single figure shows a schematic block diagram of a device for transmission of sensor signals.
Die
Vorrichtung
Die
beiden Sensoren
Ein bevorzugtes Anwendungsgebiet der Erfindung ist der Einsatz in einem elektrischen Lenksystem eines Kraftfahrzeuges.One preferred field of application of the invention is the use in one electric steering system of a motor vehicle.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE200410052860 DE102004052860A1 (en) | 2004-10-26 | 2004-10-26 | Sensor signals` transmitting device for motor vehicle`s electrical steering system, has two sensors connected with respective main processor and control processor by communication connections, which use different data communication types |
Applications Claiming Priority (1)
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DE200410052860 DE102004052860A1 (en) | 2004-10-26 | 2004-10-26 | Sensor signals` transmitting device for motor vehicle`s electrical steering system, has two sensors connected with respective main processor and control processor by communication connections, which use different data communication types |
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DE102004052860A1 true DE102004052860A1 (en) | 2006-04-27 |
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DE200410052860 Withdrawn DE102004052860A1 (en) | 2004-10-26 | 2004-10-26 | Sensor signals` transmitting device for motor vehicle`s electrical steering system, has two sensors connected with respective main processor and control processor by communication connections, which use different data communication types |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014095609A1 (en) * | 2012-12-20 | 2014-06-26 | Continental Teves Ag & Co. Ohg | Device for outputting a measurement signal indicating a physical measurement variable |
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2004
- 2004-10-26 DE DE200410052860 patent/DE102004052860A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014095609A1 (en) * | 2012-12-20 | 2014-06-26 | Continental Teves Ag & Co. Ohg | Device for outputting a measurement signal indicating a physical measurement variable |
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R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20111027 |