EP3102463A1 - Procédé et dispositif de génération d'un signal représentant l'occupation d'un siège d'un véhicule, programme d'ordinateur correspondant et support de stockage lisible par machine - Google Patents

Procédé et dispositif de génération d'un signal représentant l'occupation d'un siège d'un véhicule, programme d'ordinateur correspondant et support de stockage lisible par machine

Info

Publication number
EP3102463A1
EP3102463A1 EP15704283.9A EP15704283A EP3102463A1 EP 3102463 A1 EP3102463 A1 EP 3102463A1 EP 15704283 A EP15704283 A EP 15704283A EP 3102463 A1 EP3102463 A1 EP 3102463A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
seat
signal
generating
value
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Withdrawn
Application number
EP15704283.9A
Other languages
German (de)
English (en)
Inventor
Thomas Lich
Joerg Moennich
Gian Antonio D'addetta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3102463A1 publication Critical patent/EP3102463A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/02—Arrangements or adaptations of other passenger fittings, not otherwise provided for of hand grips or straps
    • 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
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/22—Status alarms responsive to presence or absence of persons

Definitions

  • the seat belt provides the greatest contribution to protecting the occupant in the event of an accident, with almost 75% - 80% of the restraint.
  • German patent application no. 10 2008 042399 discloses a system which, based on an interior sensor system, e.g. a Gurtauszugsudin- information of the Gurtautomaten, the buckle switch and a seat occupancy recognition and a power-on information of the vehicle detection of a so-called.
  • Belt Misuse state i. the presetting of a correctly inserted belt performs.
  • Variant 3 "Plugging the belt and then sitting on the webbing" will not be used by many people, as the comfort of sitting significantly suffers.
  • a workshop deactivation in accordance with Variant 1 could be restricted for example by legal regulations (for example, examination at main inspection).
  • the focus of the present application is on the above-mentioned use case, namely the placement of a heavy object on the front seats without performing a seatbelt.
  • the aim is to ensure that no warning function or seatbelt interlock function is activated even if the seat belt is not fastened, as there is no person in the respective seat.
  • the system (warning function / interlock) should be designed so "comfortable” that actually only in a not or not properly strapped person a warning / inhibition and not in (person-like in the sense of weight or shape) objects a warning / inhibition occurs ,
  • This object is achieved by a method and a device for generating a signal representing an occupancy of a vehicle seat and a corresponding computer program and machine-readable storage medium according to the independent claims.
  • the determination of the object is based on the dynamic
  • Sensors for example, be a weight sensor based on absolute weight measurement, but also be a seat mats-based solution or based on a capacity measurement of built-in seat or headliner sensors.
  • sensors that are installed in the headrest or center armrest.
  • the basis of the method is the evaluation of the respective characteristics of the seat-integrated or seat-near sensors.
  • the parameters are typically measured force-time profiles, but also current-time profiles depending on which type of sensor is used.
  • the different characteristics of a person sitting in relation to an object placed on the seat are taken up. This characteristic differs both in the single-seat operation, i. directly at the state transition from "seat unoccupied” to "seat occupied", as well as in the first driving state, e.g.
  • FIG. 1 Real traffic accident, fatal accident consequences due to belt misuse (belt support)
  • Fig. 2 Exemplary Gurttationbeam, belt anchoring by connected to the B-pillar & sill bar
  • Fig. 3 Exemplary Gurttationbesch, belt anchorage connected by the B-pillar swivel
  • Fig. 4 "Dummy belt tongue” for deactivating the seat belt buckle (belt misuse) variant 2
  • Fig. 6 Belt guide behind the seat back variant 4
  • Fig. 7 Inserting an unused belt (passenger) variant 5
  • Figure 9 Recognizability of the various systems with respect to the types of Gurttationbeh and previously registered or published principles.
  • Fig.1 1 Block diagram of a first simple embodiment
  • Fig.12 Block diagram - Coupling of different sensor information
  • the detection is carried out whether an object or a person is on the seat by evaluating the Einsitzvorgangs, eg before the start of the ignition, but after opening the vehicle or a vehicle door.
  • the value supplied by the seat-integrated or seat-near sensor system during initialization, ie after power-on, is for example 1000. All values shown below refer to this reference value.
  • the initialization is no longer done in modern vehicles after the ignition, but it is already with the opening of the vehicle (eg. By a remote control to open the vehicle) a (partial) current supply.
  • each occupant experiences a typical pattern, which is additionally dependent on the position of the seat relative to the instrument panel and on the person (body proportions). This case differs markedly from the exemplary use case of loading the seat by an object, cf. FIG. 10.
  • the schematic measurements shown in FIG. 10 show a differentiation possibility by a simple threshold comparison.
  • a possible evaluation provides to form the difference to the initial value, to calculate the absolute value of it and to query about a threshold value. Each time the threshold is exceeded, a counter is incremented, which is then also queried via a further threshold value and a corresponding one
  • the threshold value 3 was set here. As can be seen, an immediate evaluation is not possible, but requires the presence of a certain number of successive measurement points. However, the differentiation is clear, so that a differentiation between the use case "object” and "human” can be safely carried out. The influence of different scanning variations, with correspondingly lower sampling, can be countered by an additional weighting.
  • FIG. 11 A flow chart for a variant of the method of the present invention is shown in FIG. 11.
  • no vehicle dynamics information such as speed or vehicle longitudinal deceleration is used.
  • the Information is used as an input value for checking whether a correct fastening process is present, ie if no object was detected on the seat, but a person was recognized, it must be checked whether it is correctly fastened. If an item has been detected, it does not.
  • step 101 differences are first formed between a predetermined initial value and the sensor signal of a seat-integrated sensor system. These are passed to step 102 as relative changes. In step 102, an amount is then formed of the difference formed.
  • the amount is compared against a first predetermined threshold in step 103.
  • the first predetermined threshold value can be changed. In the flowchart, this is indicated by the incoming arrow labeled "Thd / Threshold.”
  • Threshold of the amount has been exceeded, carried out in step 104, an increase of a counter.
  • the counter reading is compared in step 105 with a second predetermined threshold value.
  • the second predetermined threshold value In one embodiment, the second predetermined
  • Threshold Z the incoming arrow labeled "Threshold Z”.
  • step 106 depending on the threshold comparison in step 105, the generation of a signal which is suitable for indicating whether the vehicle seat is occupied by a person or an object takes place.
  • This signal can be transmitted via a suitable communication interface, for example. Via a CAN bus to other components in the vehicle. For example. to a system that checks whether a belt system for the vehicle seat has been correctly created when it has been detected that the vehicle seat is occupied by a person.
  • a supplementary design provides for additional consideration of vehicle dynamics information such as speed or acceleration information.
  • the algorithm is only executed if the speed is above or below a defined threshold. It is also conceivable to carry out only situation-adaptive evaluations, in which the internal sassen or objects is to be expected, for example when accelerating and / or braking. This could potentially increase the stability of the solution.
  • the vehicle dynamics information already available for example, on the CAN bus is evaluated as additional input. As base information, the vehicle speed and, if available, the longitudinal acceleration (ax) is used. This enables dynamic observation.
  • Another implementation variant is based on saving the last state / status of the sensor information when the vehicle is switched off. It would be possible, e.g. the storage of a value or a value profile in the appropriate control unit. When the vehicle is restarted, the dynamic information is compared with the stored values or value profiles according to the method described above. From this it can be concluded that no change is a "rigid" charge / object, as a human inmate would always behave differently and not remain static over a longer period of time.
  • the sensor for static and dynamic measurement can be image information with subsequent object recognition (eg interior camera), a thermal profile, a noise profile, weight information (eg seat-integrated sensors).
  • the sensor system for detecting an external excitation includes the measurement of a reaction of an object or person to an external excitation, for example "starting" by seat kinematics and / or driving dynamics and / or vehicle dynamics (braking / accelerating).
  • vehicle dynamics information other measured variables or states provided for other functions can also be used for plausibility checking or threshold value adaptation.
  • microswitches in the door handle can detect if the door has been opened / closed from inside or outside. Operation of the seat adjustment with the door closed and the driver-side seat side can also be closed to a person sitting on the seat
  • Detection may be done in a controller, such as e.g. the
  • Airbag control unit Other control devices with corresponding communication possibilities, such as A CAN bus is also conceivable (e.g.
  • the device represents a cost-effective alternative to indoor cameras.

Abstract

L'invention concerne un procédé de génération d'un signal qui représente l'occupation d'un siège d'un véhicule, comprenant les étapes consistant à : - détecter un signal d'un système d'analyse sensorielle servant à détecter un paramètre dynamique relatif à un siège de véhicule ; - évaluer le signal, en particulier une allure du signal ; - générer un signal d'occupation de siège en fonction de l'évaluation du signal, le signal d'occupation de siège étant adapté pour indiquer si le siège de véhicule est occupé par une personne ou un objet.
EP15704283.9A 2014-02-06 2015-02-06 Procédé et dispositif de génération d'un signal représentant l'occupation d'un siège d'un véhicule, programme d'ordinateur correspondant et support de stockage lisible par machine Withdrawn EP3102463A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014202130.8A DE102014202130A1 (de) 2014-02-06 2014-02-06 Vorrichtung und Verfahren zur Erkennung eines nicht wirksam angelegten Gurtbandes und zugehöriges Rückhaltesystem
PCT/EP2015/052553 WO2015118127A1 (fr) 2014-02-06 2015-02-06 Procédé et dispositif de génération d'un signal représentant l'occupation d'un siège d'un véhicule, programme d'ordinateur correspondant et support de stockage lisible par machine

Publications (1)

Publication Number Publication Date
EP3102463A1 true EP3102463A1 (fr) 2016-12-14

Family

ID=52469831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15704283.9A Withdrawn EP3102463A1 (fr) 2014-02-06 2015-02-06 Procédé et dispositif de génération d'un signal représentant l'occupation d'un siège d'un véhicule, programme d'ordinateur correspondant et support de stockage lisible par machine

Country Status (5)

Country Link
US (1) US20170166086A1 (fr)
EP (1) EP3102463A1 (fr)
CN (1) CN105980216B (fr)
DE (1) DE102014202130A1 (fr)
WO (1) WO2015118127A1 (fr)

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
US11718255B2 (en) 2017-07-13 2023-08-08 Iee International Electronics & Engineering S.A. System and method for radar-based determination of a number of passengers inside a vehicle passenger compartment
CN107839598B (zh) * 2017-11-09 2020-06-30 爱驰汽车有限公司 车内生命检测警告系统、方法、设备及存储介质
DE102018102724A1 (de) * 2018-02-07 2019-08-08 Autoliv Development Ab Gurtaufroller und Verfahren zur Ermittlung eines Anschnallzustands für ein Kraftfahrzeug
CN110787366B (zh) * 2018-08-01 2023-08-18 上海汽车集团股份有限公司 一种碰撞防护系统、方法及车辆
DE102019102102B4 (de) * 2019-01-29 2021-10-21 Grammer Aktiengesellschaft Sitzbelegungserkennung mit Beschleunigungssignal
EP3816008A1 (fr) * 2019-10-29 2021-05-05 Lorenz Cronenberg Procédé mis en uvre par ordinateur permettant d'afficher des places assises libres
US11724666B2 (en) * 2020-03-18 2023-08-15 Honda Motor Co., Ltd. System and method for remotely monitoring vehicle access

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US5570903A (en) * 1995-02-21 1996-11-05 Echlin, Inc. Occupant and infant seat detection in a vehicle supplemental restraint system
WO1997004984A1 (fr) * 1995-07-29 1997-02-13 Robert Bosch Gmbh Dispositif permettant de reconnaitre le type d'occupation d'un siege de vehicule
CN1240394A (zh) * 1996-10-21 2000-01-05 美国西门子汽车公司 一种乘客检测和碰撞行为系统
US5983147A (en) * 1997-02-06 1999-11-09 Sandia Corporation Video occupant detection and classification
US6438477B1 (en) * 2002-02-27 2002-08-20 Delphi Technologies, Inc. Vehicle seat occupant characterization method including empty seat detection
DE10233098C1 (de) * 2002-07-20 2003-10-30 Bosch Gmbh Robert Verfahren und Anordnung bei der Klassifizierung von einen Sitz belegenden Objekten
DE102005014515A1 (de) * 2005-03-30 2006-10-05 Siemens Ag Vorrichtung und Verfahren zum Unterscheiden einer Person von einem Gegenstand auf einem Fahrzeugsitz
EP2036780A1 (fr) * 2007-09-12 2009-03-18 IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. Procédé et système pour détecter un occupant dans un siège de véhicule
US7966109B2 (en) * 2007-09-14 2011-06-21 Les Innovations Cd Invenio Inc. Reminder device for eliciting behavioral response in a vehicle
DE102008042399B4 (de) 2008-09-26 2019-06-13 Robert Bosch Gmbh Rückhaltesystem für ein Fahrzeug
DE102010029790B4 (de) 2010-06-08 2018-04-26 Robert Bosch Gmbh Vorrichtung und Verfahren zur Erkennung eines nicht wirksam angelegten Gurtbandes und zugehöriges Rückhaltesystem

Non-Patent Citations (2)

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See also references of WO2015118127A1 *

Also Published As

Publication number Publication date
DE102014202130A1 (de) 2015-08-06
US20170166086A1 (en) 2017-06-15
CN105980216B (zh) 2018-05-22
CN105980216A (zh) 2016-09-28
WO2015118127A1 (fr) 2015-08-13

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