DE102004064017A1 - Method for detecting load conditions - Google Patents
Method for detecting load conditions Download PDFInfo
- Publication number
- DE102004064017A1 DE102004064017A1 DE102004064017A DE102004064017A DE102004064017A1 DE 102004064017 A1 DE102004064017 A1 DE 102004064017A1 DE 102004064017 A DE102004064017 A DE 102004064017A DE 102004064017 A DE102004064017 A DE 102004064017A DE 102004064017 A1 DE102004064017 A1 DE 102004064017A1
- Authority
- DE
- Germany
- Prior art keywords
- load
- vehicle seat
- motor vehicle
- weight
- sensors
- 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- Withdrawn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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01516—Passenger detection systems using force or pressure sensing means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
- G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
- G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
- G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems
Abstract
Bei einem Verfahren zur Detektion von Verspannungszuständen einer auf Lastsensoren (8, 9, 10, 11) basierenden Einrichtung zur Erkennung der Belegung eines Kraftfahrzeugsitzes (1) und zur Messung einer auf dem Kraftfahrzeugsitz (1) angelegten Last detektieren die Lastsensoren (8, 9, 10, 11) ein Gewicht einer auf dem Kraftfahrzeugsitz (1) befindenden Person. Zu jedem Zeitpunkt des Abtastens des Kraftfahrzeugsitzes (1) durch die Lastsensoren (8, 9, 10, 11) werden Gewichtswerte (G¶1¶, G¶2¶, G¶3¶, G¶4¶) gemessen. Danach wird ein Moment (My) in y-Richtung berechnet. Anschließend wird ein Verspannungszustand der auf die Lastsensoren (8, 9, 10, 11) basierenden Einrichtung bei Unterschreitung eines unteren Schwellwertes oder bei Überschreitung eines oberen Schwellwertes ausgegeben.In a method for the detection of stress states of a load sensor (8, 9, 10, 11) based device for detecting the occupancy of a motor vehicle seat (1) and for measuring a load applied to the motor vehicle seat (1), the load sensors (8, 9, 10, 11) a weight of a person sitting on the motor vehicle seat (1). At each time of the scanning of the motor vehicle seat (1) by the load sensors (8, 9, 10, 11) weight values (G¶1¶, G¶2¶, G¶3¶, G¶4¶) are measured. Then a moment (My) in y-direction is calculated. Subsequently, a state of stress of the load sensors (8, 9, 10, 11) based device is output when falling below a lower threshold value or when exceeding an upper threshold value.
Description
Die Erfindung betrifft ein Verfahren zur Detektion von Lastzuständen einer auf Lastsensoren basierenden Einrichtung zur Erkennung der Belegung eines Kraftfahrzeugsitzes und zur Messung einer auf dem Kraftfahrzeugsitz angelegten Last, wobei die Lastsensoren ein Gewicht einer auf dem Kraftfahrzeugsitz befindenden Person detektieren.The The invention relates to a method for detecting load conditions of a Load sensing based occupancy detection device a motor vehicle seat and for measuring one on the motor vehicle seat applied load, wherein the load sensors have a weight on the Detecting vehicle seat person.
Aus der US 2002/0125051 A1 ist ein Verfahren bekannt, welches eine Sitzlastmessvorrichtung und ein Verfahren zur Ermittlung des Gewichts eines Kraftfahrzeugsitzes offenbart, wobei Lastsensoren zur Ermittlung der Last des Kraftfahrzeugsitzes vorgesehen sind, welche jeweils ein Messergebnis liefern. Diese Messergebnisse werden zur Ermittlung des Gewichts summiert. Danach wird das Gewicht des Kraftfahrzeugsitzes ermittelt, welches auf einem Wert basiert, der anders ist als das Messergebnis einer Addiereinrichtung, wenn wenigstens eines der Messergebnisse einen Schwellwert überschreitet. Somit wird jeder einzelne der gemessenen Gewichtswerte mit einem Schwellwert verglichen sowie auch beispielsweise mit dem Mittelwert von einigen vorangegangenen Messungen. Dies bedeutet, dass dort ein absoluter Schwellwert abgeprüft wird. Nachteilig bei einem derartigen Verfahren ist, dass der absolute Schwellwert beispielsweise bei einem zulässigen Messbereich bis 150 kg nur schwer zu bestimmen ist. Ebenso können sehr geringe Gewichte, beispielsweise die von Kindern, nur ungenügend erfasst werden.Out US 2002/0125051 A1 discloses a method which has a seat load measuring device and a method for determining the weight of a motor vehicle seat discloses load sensors for determining the load of the motor vehicle seat are provided, which each provide a measurement result. These Measurement results are summed to determine the weight. After that the weight of the vehicle seat is determined, which on based on a value other than the measurement result of an adder, if at least one of the measurement results exceeds a threshold value. Thus, each one of the measured weight values becomes one Threshold compared as well as, for example, the mean from some previous measurements. This means that there an absolute threshold checked becomes. The disadvantage of such a method is that the absolute Threshold, for example, for a permissible measuring range up to 150 kg is difficult to determine. Likewise, very low weights, for example, those of children, are detected only insufficient.
Ein prinzipielles Problem bei der Ermittlung von Gewichtswerten eines Kraftfahrzeugsitzes sind Verspannungszustände oder der Missbrauch eines auf der Verwendung von Gewichtssensoren basierenden Systems zur PKW-Insassenklassifizierung. Verspannungszustände können beispielsweise auftreten, wenn sich ein Gegenstand unter dem Kraftfahrzeugsitz befindet und diesen verklemmt. Diese Verklemmung kann in einer nach oben gerichteten Kraft resultieren, welche eine deutliche Verringerung des gemessenen Gewichts zur Folge haben kann. Dies ist insbesondere für die korrekte Unterscheidung von Kindern oder Erwachsenen mit einem relativ geringen Gewicht kritisch, da dann eine entsprechende Auslösung des Airbags nicht gewährleistet ist.One principle problem in the determination of weight values of a Motor vehicle seat are states of tension or misuse of a based on the use of weight sensors based system Car occupant classification. Stress states can occur, for example, if an object is under the vehicle seat and this jammed. This deadlock can be in an upward direction Force resulting in a significant reduction in the measured Weight can result. This is especially true for the correct Distinction of children or adults with a relatively small Weight critical, because then a corresponding triggering of Airbags not guaranteed is.
Es ist daher Aufgabe der vorliegenden Erfindung, ein Verfahren zur Detektion von Verspannungszuständen einer auf Lastsensoren basierenden Einrichtung zu schaffen, mit welchem Verspannungszustände erkennbar und somit eine Verbesserung der Sicherheit der Personen in einem Fahrzeug möglich sind.It is therefore an object of the present invention, a method for Detection of stress states to provide a load sensor based device with which stress states recognizable and thus an improvement in the safety of persons possible in a vehicle are.
Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention this Problem solved by the features mentioned in claim 1.
Durch das erfindungsgemäße Verfahren wird der Belegungszustand eines Kraftfahrzeugsitzes anhand einer Einrichtung zur Gewichtssensierung einer der möglichen Gewichtsklassen zugeordnet. Anhand des erfindungsgemäßen Verfahrens lassen sich Lastzustände weitestgehend erkennen, detektieren und danach beseitigen. Somit trägt das erfindungsgemäße Verfahren wesentlich zur Verbesserung der Sicherheit der Personen in einem Kraftfahrzeug bei.By the inventive method the occupancy state of a motor vehicle seat based on a Means assigned to weighting one of the possible weight classes. Based on the method according to the invention can be load conditions detect, detect and eliminate as far as possible. Consequently wear this inventive method essential to improve the safety of persons in one Motor vehicle at.
Nachfolgend sind Ausführungsbeispiele der Erfindung prinzipmäßig dargestellt.following are exemplary embodiments of the invention shown in principle.
Dabei zeigen:there demonstrate:
In
In
Durch
einen Verklemmungsgegenstand
Um ein Ausgeben von Lastzuständen zu ermöglichen, sollte der Schwerpunkt COGY in y-Richtung größer als ein erster Schwellwert bzw. kleiner als ein zweiter Schwellwert sein. Weiterhin sollte die Standardabweichung der vier ermittelten Gewichtsangaben G1, G2, G3 und G4 zu jedem Zeitpunkt größer als ein dritter Schwellwert sein.In order to enable the output of load states, the center of gravity COG Y in the y direction should be greater than a first threshold value or less than a second threshold value. Furthermore, the standard deviation of the four determined weights G 1 , G 2 , G 3 and G 4 should be greater than a third threshold at any time.
Es wird ebenfalls ein Verspannungszustand ausgewiesen, wenn eine festgelegte (negative) Gewichtsgrenze unterschritten werden sollte.It a state of stress is also reported when a specified (negative) weight limit should be undercut.
Die
Erkennung der Belegung des Kraftfahrzeugsitzes
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410035358 DE102004035358B3 (en) | 2004-07-21 | 2004-07-21 | Detecting load states on device based on load sensors for detecting vehicle seat occupancy involves outputting load state resulting from tension state of load sensors if load state value falls below lower threshold value |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004064017A1 true DE102004064017A1 (en) | 2007-01-11 |
Family
ID=34673267
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004064017A Withdrawn DE102004064017A1 (en) | 2004-07-21 | 2004-07-21 | Method for detecting load conditions |
DE200410035358 Revoked DE102004035358B3 (en) | 2004-07-21 | 2004-07-21 | Detecting load states on device based on load sensors for detecting vehicle seat occupancy involves outputting load state resulting from tension state of load sensors if load state value falls below lower threshold value |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410035358 Revoked DE102004035358B3 (en) | 2004-07-21 | 2004-07-21 | Detecting load states on device based on load sensors for detecting vehicle seat occupancy involves outputting load state resulting from tension state of load sensors if load state value falls below lower threshold value |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE102004064017A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006026926C5 (en) * | 2006-06-09 | 2010-05-20 | Continental Automotive Gmbh | Method for detecting a jamming of a seat |
DE102017201965A1 (en) * | 2017-02-08 | 2018-08-09 | Robert Bosch Gmbh | Method for detecting a seat occupancy |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232243A (en) * | 1991-04-09 | 1993-08-03 | Trw Vehicle Safety Systems Inc. | Occupant sensing apparatus |
DE19625730A1 (en) * | 1996-06-27 | 1998-01-02 | Teves Gmbh Alfred | Tactile sensor matrix for vehicles |
AU1402599A (en) * | 1997-11-12 | 1999-05-31 | Siemens Automotive Corporation | A method and system for determining weight and position of vehicle seat occupant |
JP2001116614A (en) * | 1999-09-07 | 2001-04-27 | Takata Corp | Deciding method for object on seat and deciding method for air bag unfolding mode |
US6636792B2 (en) * | 2000-09-29 | 2003-10-21 | Siemens Vdo Automotive Corporation | Weight classification system |
JP2002267524A (en) * | 2001-03-08 | 2002-09-18 | Takata Corp | Seat weight measuring instrument |
DE10120978A1 (en) * | 2001-05-01 | 2002-11-14 | Bizerba Gmbh & Co Kg | Device and method for detecting and processing weight forces acting on a vehicle seat |
DE10145370A1 (en) * | 2001-09-14 | 2002-12-05 | Siemens Ag | Load reception device for automobile passenger seat has U-shaped spring element and cooperating sensor for detecting seat loading |
-
2004
- 2004-07-21 DE DE102004064017A patent/DE102004064017A1/en not_active Withdrawn
- 2004-07-21 DE DE200410035358 patent/DE102004035358B3/en not_active Revoked
Also Published As
Publication number | Publication date |
---|---|
DE102004035358B3 (en) | 2005-07-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102007062764B4 (en) | System and method for classifying vehicle occupants | |
DE112006000108B4 (en) | Side impact plausibility with side speed | |
DE10007014C2 (en) | Method and device for seat occupancy detection | |
EP1536988B1 (en) | Method and device for identifying the type of occupancy of a supporting surface | |
WO2004016476A1 (en) | Method and arrangement for the classification of objects occupying a seat | |
DE112005001348T5 (en) | Occupant Classification System and Procedures | |
DE102005057807B4 (en) | Occupant detection device for a motor vehicle | |
DE10223218B4 (en) | Device and method for seat occupancy detection in a motor vehicle | |
DE60017562T2 (en) | SENSOR FOR DETERMINING THE INSIGHT WEIGHT | |
DE102004042840A1 (en) | Seat assembly of motor vehicle, has several vertically disposed weight sensors provided between outer and inner rails and seat to detect force of weight of occupant, exerted downwardly from seat | |
WO2006034756A1 (en) | Control device for automotive occupant protection means | |
DE112006001659T5 (en) | Determination of the peak load detection for triggering load-limiting restraint devices | |
DE102004064017A1 (en) | Method for detecting load conditions | |
DE102005039029A1 (en) | Device for determining occupant-related variables in a vehicle | |
DE102006026926C5 (en) | Method for detecting a jamming of a seat | |
WO2006103237A1 (en) | Device and method for differentiating between a person and an object on a vehicle seat | |
DE102007035924A1 (en) | Sensor system and method for determining the weight and / or position of a seat occupant | |
DE102013004830A1 (en) | Belt force limiter operating method for safety belt of vehicle, involves reducing force level of belt force limiter based on detected belt angle of safety belt, and detecting belt angle by sensor and detecting unit | |
DE102005053744B3 (en) | Seat sensor method for determining an equivalent output value for a failed sensor in a vehicle seat with an occupancy sensor system uses an array of sensors to detect a body's presence | |
DE102006019712B4 (en) | Method and device for classifying passengers in a means of transport | |
DE102006022110B4 (en) | Method and device for detecting a sensor deviation of at least one sensor of at least two sensors | |
DE102004015262B3 (en) | Method of determining a parameter characteristic of a mass located on the seat surface of a seat or chair especially a car seat based on a basic value and a comparison value | |
DE102021133601B4 (en) | AIR BAG DEPLOYMENT APPARATUS AND METHOD | |
DE112015004287T5 (en) | Weight responsive occupancy classification system for a vehicle seat | |
DE102022110567A1 (en) | Assembly and method for classification |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AC | Divided out of |
Ref document number: 102004035358 Country of ref document: DE Kind code of ref document: P |
|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140201 |