DE102004001909A1 - Data processing circuit for data from large number of sensors in road vehicle detects faulty signals or dropout of damaged sensor and has circuit producing substitution signals - Google Patents
Data processing circuit for data from large number of sensors in road vehicle detects faulty signals or dropout of damaged sensor and has circuit producing substitution signals Download PDFInfo
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- DE102004001909A1 DE102004001909A1 DE102004001909A DE102004001909A DE102004001909A1 DE 102004001909 A1 DE102004001909 A1 DE 102004001909A1 DE 102004001909 A DE102004001909 A DE 102004001909A DE 102004001909 A DE102004001909 A DE 102004001909A DE 102004001909 A1 DE102004001909 A1 DE 102004001909A1
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- 238000012545 processing Methods 0.000 title claims abstract description 15
- 238000006467 substitution reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000002950 deficient Effects 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000003278 mimic effect Effects 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 238000011161 development Methods 0.000 description 9
- 230000018109 developmental process Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/0008—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including means for detecting potential obstacles in vehicle path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
- G08G1/163—Decentralised systems, e.g. inter-vehicle communication involving continuous checking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/413—Plausibility monitoring, cross check, redundancy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
- B60W2554/40—Dynamic objects, e.g. animals, windblown objects
- B60W2554/404—Characteristics
- B60W2554/4042—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
- B60W2554/80—Spatial relation or speed relative to objects
- B60W2554/804—Relative longitudinal speed
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulating Braking Force (AREA)
- Traffic Control Systems (AREA)
Abstract
Die vorliegende Erfindung stellt ein Verfahren zur Verarbeitung von Sensordaten (11) mit den Verfahrensschritten bereit: Bereitstellen von Sensordaten (11) durch mindestens zwei Sensoren (10); Analysieren der bereitgestellten Sensordaten (11) zum Detektieren eines Ausfalls eines defekten Sensors (10'); und Generieren von Ersatzdaten (14), welche Sensordaten (11') eines ausgefallenen Sensors (10') bei Auftreten eines vorbestimmten Zustands nachbilden, wenn eine Sensorausfall detektiert wird. Die vorliegende Erfindung stellt ebenfalls eine Vorrichtung zur Verarbeitung von Sensordaten (11) bereit.The present invention provides a method of processing sensor data (11) comprising the steps of: providing sensor data (11) through at least two sensors (10); Analyzing the provided sensor data (11) to detect a failure of a defective sensor (10 '); and generating replacement data (14) which replicates sensor data (11 ') of a failed sensor (10') upon occurrence of a predetermined condition when a sensor failure is detected. The present invention also provides an apparatus for processing sensor data (11).
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Verarbeitung von Sensordaten, und insbesondere ein Verfahren und eine Vorrichtung zur Verarbeitung digitaler Abstandssensordaten eines Fahrzeugfahrregelsystems.The The invention relates to a method and a device for processing of sensor data, and more particularly a method and apparatus for processing digital distance sensor data of a vehicle control system.
Sensorsysteme zur Abstandserfassung in Fahrzeugen weisen in der Regel mehrere gleichartige, insbesondere identische, Sensoren auf, deren Informationen in einem Steuergerät verarbeitet und von diesem an weitere Einrichtungen, wie beispielsweise das Bremssystem, weitergegeben werden.sensor systems for distance detection in vehicles usually have several similar, in particular identical, sensors whose information in a control unit processed and from this to other facilities, such as the braking system, to be passed.
Aus
der Deutschen Patentschrift
Aus
der Deutschen Patentschrift
In
der Deutschen Patentanmeldung
Es ist daher Aufgabe der vorliegenden Erfindung, auch bei einem Ausfall von Sensorwerten eines Sensors bei Auftreten eines vorbestimmten Zustands einen sicheren Betrieb einer Vorrichtung zum Verarbeiten von Sensordaten aufrecht zu halten.It is therefore an object of the present invention, even in case of failure of sensor values of a sensor upon occurrence of a predetermined one State safe operation of a device for processing of sensor data upright.
Erfindungsgemäß wird diese Aufgabe durch ein Verfahren zur Verarbeitung von Sensordaten mit den Merkmalen des Patentanspruchs 1 sowie durch eine Vorrichtung zur Verarbeitung von Sensordaten mit den Merkmalen des Patentanspruchs 8 gelöst.According to the invention this Task by a method for processing sensor data with the Features of claim 1 and by a device for Processing of sensor data with the features of the claim 8 solved.
Demgemäß ist vorgesehen:
- – Ein Verfahren zur Verarbeitung von Sensordaten mit den Verfahrensschritten: Bereitstellen von Sensordaten durch mindestens zwei Sensoren; Analysieren der bereitgestellten Sensordaten zum Detektieren eines Ausfall eines Sensors oder einer Sensoranbindung; und Generieren von Ersatzdaten, welche Sensordaten eines ausgefallenen Sensors bei Auftreten eines vorbestimmten Zustands nachbilden, wenn ein Ausfall eines Sensors oder einer Sensoranbindung detektiert wird. (Patentanspruch 1)
- – Eine Vorrichtung zur Verarbeitung von Sensordaten, mit: mindestens zwei Sensoren zum Bereitstellen von Sensordaten; einer Steuereinrichtung zum Analysieren der bereitgestellten Sensordaten und zum Detektieren eines Ausfall eines defekten Sensors; und einer Datenerzeugungseinrichtung zum Generieren von Ersatzdaten bei einem detektierten Sensorausfall, welche Sensordaten eines ausgefallenen Sensors bei Auftreten eines vorbestimmten Zustands nachbildet. (Patentanspruch 8)
- - A method for processing sensor data with the method steps: providing sensor data by at least two sensors; Analyzing the provided sensor data to detect a failure of a sensor or a sensor connection; and generating spare data which replicates sensor data of a failed sensor upon occurrence of a predetermined condition when a failure of a sensor or a sensor connection is detected. (Claim 1)
- - An apparatus for processing sensor data, comprising: at least two sensors for providing sensor data; a controller for analyzing the provided sensor data and detecting a failure of a defective sensor; and data generating means for generating replacement data at a detected sensor failure, which replicates sensor data of a failed sensor upon occurrence of a predetermined condition. (Claim 8)
Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den weiteren Unteransprüchen sowie der Beschreibung unter Bezugnahme auf die Zeichnung.advantageous Refinements and developments of the invention will become apparent the further subclaims and the description with reference to the drawing.
Die der vorliegenden Erfindung zugrunde liegende Idee besteht im Wesentlichen darin, Ersatzdaten bei einem Sensorausfall zu generieren, so dass ein Steuergerät eine sichere Datenverar beitung durchführen kann, wobei die Generierung der Ersatzdaten auf Basis eines vorbestimmten Zustands, insbesondere eines gegenwärtigen Fahrzustandes, wie beispielsweise einem Bremsmanöver, erfolgt.The The idea underlying the present invention consists essentially in it to generate replacement data in case of a sensor failure, so that a control unit can perform secure data processing, whereby the generation the replacement data based on a predetermined state, in particular of a current one Driving condition, such as a braking maneuver takes place.
Von Vorteil dabei ist, dass auch bei einer Fehlfunktion einzelner Sensoren des Sensorsystems im Gegensatz zu einem im Stand der Technik gängigen Abschalten des Systems keine sofortige und unbedingte Abschaltung des Systems erforderlich ist. Das Sensorsystem, welches beispielsweise zur Abstandsdetektion zu einem vorausfahrenden Fahrzeug eingesetzt wird, kann in einem vorbestimmten kritischen Zustand, wie beispielsweise einer Vollbremsung, trotz Sensorausfalls die bereits ablaufende Bremsbetätigung zu Ende führen. Daraufhin kann das Sensorsystem in einem unkritischen Zustand, z.B. im Stillstand des Fahrzeugs, deaktiviert werden und einen Warnhinweis an eine Bedienperson, vorzugsweise den Fahrer eines Fahrzeugs, abgeben. Darüber hinaus kann im Falle eines Sensorsystems eines Fahrzeugs die Bedienperson bzw. der Fahrer auf vorteilhafte Weise in einem Notlaufmodus mit eingeschränkter Funktionalität des Sensorsystems weiterfahren.The advantage here is that even with a malfunction of individual sensors of the sensor system in contrast to a common in the prior art When the system is switched off, no immediate and unconditional shutdown of the system is required. The sensor system, which is used, for example, for detecting the distance to a vehicle in front can, in a predetermined critical state, such as a full braking, despite sensor failure, the already running brake operation to an end. The sensor system can then be deactivated in a noncritical state, for example when the vehicle is at a standstill, and emit a warning to an operator, preferably the driver of a vehicle. Moreover, in the case of a sensor system of a vehicle, the operator or the driver can advantageously proceed in an emergency mode with limited functionality of the sensor system.
Gemäß einer bevorzugten Weiterbildung dient als vorbestimmter Zustand ein Fahrzustand bei einem Fahrmanöver eines Kraftfahrzeugs.According to one preferred development serves as a predetermined state, a driving condition in a driving maneuver of a motor vehicle.
Gemäß einer weiteren bevorzugten Weiterbildung bilden die generierten Ersatzdaten ein imaginäres Sensorziel und/oder Hindernis oder einen Abstand dazu nach.According to one Another preferred development is the generated replacement data an imaginary Sensor target and / or obstacle or a distance to it.
Gemäß einer weiteren bevorzugten Weiterbildung wird das imaginäre Sensorziel und/oder Hindernis oder ein Abstand dazu abhängig von einem gegenwärtigen Fahrzustand zyklisch neu berechnet.According to one Another preferred development is the imaginary sensor target and / or obstacle or a distance depending on a current driving condition recalculated cyclically.
Gemäß einer weiteren bevorzugten Weiterbildung liegt als gegenwärtiger Fahrzustand ein Bremsmanöver bei einem abstandsgeregelten Fahrbetrieb vor, bei welchem die Ersatzdaten bei einem entsprechenden Sensorausfall durch Interpolation von Abstandswerten auf Basis einer abgeschätzten Relativgeschwindigkeit zu einem Sensorziel und/oder Hindernis generiert werden.According to one Another preferred development is as a current driving condition a brake maneuver in a distance-controlled driving, in which the replacement data with a corresponding sensor failure by interpolation of distance values based on an estimated relative speed to a sensor target and / or obstacle are generated.
Gemäß einer weiteren bevorzugten Weiterbildung wird die Relativgeschwindigkeit zu einem Sensorziel oder Hindernis als im Wesentlichen konstant abgeschätzt.According to one Another preferred development is the relative speed to a sensor target or obstacle as substantially constant estimated.
Gemäß einer weiteren bevorzugten Weiterbildung ergeht bei einem entsprechenden Sensorausfall ein Warnhinweis an einen Bediener, insbesondere einen Fahrer.According to one Another preferred training is at a corresponding Sensor failure a warning to an operator, in particular a Driver.
Gemäß einer weiteren bevorzugten Weiterbildung sind die Sensoren durch akustische und/oder optische und/oder radarbasierte Abstandssensoren, vorzugsweise Ultraschall- und/oder Lidar- und/oder Radarsensoren, gebildet.According to one Another preferred embodiment, the sensors are acoustic and / or optical and / or radar-based distance sensors, preferably Ultrasonic and / or lidar and / or radar sensors formed.
Gemäß einer weiteren bevorzugten Weiterbildung ist ein Datenbus, insbesondere ein CAN-Bus, zur Übermittlung der Sensordaten an die Steuereinrichtung vorgesehen.According to one Another preferred development is a data bus, in particular a CAN bus, for transmission the sensor data provided to the control device.
Gemäß einer weiteren bevorzugten Weiterbildung ist die Datenerzeugungseinrichtung in der Steuereinrichtung integriert.According to one Another preferred development is the data generation device integrated in the control device.
Gemäß einer weiteren bevorzugten Weiterbildung ist die Vorrichtung in einer Abstands-/Geschwindigkeitsregeleinrichtung oder in einer Einparkhilfeeinrichtung eines Kraftfahrzeugs vorgesehen.According to one Another preferred development is the device in one Distance / speed control device or in a parking aid device a motor vehicle provided.
Die Erfindung wird nachfolgend anhand des in der einzigen Figur der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The Invention is described below with reference to the single FIG Drawing illustrated embodiment explained in more detail.
Es zeigt dabei:It shows:
In
Ist
ein defekter Sensor
Diese
Ersatzdaten
Ist
somit ein vorbestimmter Zustand gegeben, d.h. z.B. ein Abstands-/Geschwindigkeitsregelsystem
aktiviert, und fällt
gleichzeitig eine Sensorfunktion, z.B. durch einen defekten Sensor
Fällt beispielsweise
im Verlauf eines starken Bremsmanövers ein Abstandssensor
Obwohl die vorliegende Erfindung vorstehend anhand eines bevorzugten Ausführungsbeispiels beschrieben wurde, ist sie darauf nicht beschränkt, sondern auf vielfältige Weise modifizierbar. So ist neben dem Einsatz in einem Abstands-/Geschwindigkeitsregelsystem eines Kraftfahrzeugs auch der Einsatz in einem Einparkhilfesystem denkbar. Darüber hinaus ist die vorliegende Erfindung nicht auf den Kraftfahrzeugsektor beschränkt, sondern kann beispielsweise auch beim Betrieb von autarken Transportrobotern eingesetzt werden.Even though the present invention above based on a preferred embodiment It is not limited to this, but in many ways modifiable. So is in addition to the use in a distance / speed control system a motor vehicle and the use in a parking assistance system conceivable. About that In addition, the present invention is not in the automotive sector limited, but also, for example, in the operation of self-sufficient transport robots be used.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004001909A DE102004001909A1 (en) | 2004-01-14 | 2004-01-14 | Data processing circuit for data from large number of sensors in road vehicle detects faulty signals or dropout of damaged sensor and has circuit producing substitution signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004001909A DE102004001909A1 (en) | 2004-01-14 | 2004-01-14 | Data processing circuit for data from large number of sensors in road vehicle detects faulty signals or dropout of damaged sensor and has circuit producing substitution signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102004001909A1 true DE102004001909A1 (en) | 2005-08-04 |
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ID=34716525
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102004001909A Withdrawn DE102004001909A1 (en) | 2004-01-14 | 2004-01-14 | Data processing circuit for data from large number of sensors in road vehicle detects faulty signals or dropout of damaged sensor and has circuit producing substitution signals |
Country Status (1)
| Country | Link |
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| DE (1) | DE102004001909A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102005038616A1 (en) * | 2005-08-16 | 2007-02-22 | Trw Automotive Gmbh | Method for controlling an active restraint system |
| WO2008148589A1 (en) * | 2007-06-07 | 2008-12-11 | Mettler-Toledo Ag | Method for monitoring the state of a force measuring device, force measuring device and force measuring module |
| EP1919083A3 (en) * | 2006-10-31 | 2010-04-14 | Continental Automotive GmbH | Operating device |
| US8648266B2 (en) | 2007-06-07 | 2014-02-11 | Mettler-Toledo Ag | Multiple force-measuring device, force-measuring module, and method for monitoring a condition of the multiple force-measuring device |
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| US8648266B2 (en) | 2007-06-07 | 2014-02-11 | Mettler-Toledo Ag | Multiple force-measuring device, force-measuring module, and method for monitoring a condition of the multiple force-measuring device |
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