DE102007031865A1 - Seat i.e. vehicle seat, wear testing and/or soiling behavior testing method for use during seating of human on seat, involves assigning different seat-specific characteristics to seat for standardizable wear and/or soiling testing of seat - Google Patents

Abstract

The method involves incorporating dynamized, kinematic data in a robot controller for determining a motion sequence of a robot arm during the detection of kinematic data of a motion sequence of a test person (10) from a definite vehicle type (12i) i.e. middle class, depending on vehicle-specific and/or seat-specific specifications. A testing dummy is assigned different presettable test person specific characteristics and/or a vehicle seat (14i) is assigned different seat-specific characteristics for standardizable wear and/or soiling testing of the seat. An independent claim is also included for a robot for wear testing and/or soiling behavior testing of a seat.

Description

The The invention relates to a method for wear testing parts, and in particular seats, such as motor vehicle seats, by simulating the sitting activity of a person. The The invention further relates to this suitable system, in particular a robot for simulating the human body.

Background of the invention

Wear resistance tests performed on equipment such as slideway machines or other seat testing equipment are known. For example, the US patent US 3,592,041 from Spencer a seat tester for testing the wear resistance and wear characteristics of a seat. The tester includes a number of weight blocks that engage the seat bottom and seat back of the seat during continuous cycling.

The US patent US 2,670,627 Shaw discloses a device for testing abrasion resistance, flexing and creasing of a textile fabric.

The US patent US 5,373,749 from Strand et al. discloses a tester for applying forces to a rear of a motor vehicle seat.

The US patent US 5,379,646 Andrzejak discloses a robotic device applying a load to a seat back which is capable of exerting a static load as well as a tax load on various points of the rear part of the vehicle seat.

The filed on October 18, 1996 US patent application entitled "Method and System for Creating a Time-lapse Record of Wearout of a Part" and the U.S. Serial No. 08 / 730,897 describes a system for wear resistance simulations based on the total movement of the buttocks of a user on a seat to be tested. However, the system only incompletely reproduces the human-seat interaction.

Some multi-axis systems rely on the ability of a programmer to Transfer video images into machine programming of the systems. Such systems do not have a feedback loop, with their help the correct load of the seat by the simulator could be verified.

The US patent US 3,841,163 discloses a display system for manikins.

The US patents US 4,873,687 . US 4,701,132 . US 4,409,835 and US 4,261,113 reveal test dummies that represent the back, buttocks and legs of the human body.

The US patent US 4,438,650 discloses a manikin whose shape is selected to correspond to the thighs, buttocks and back of a human.

The US patent US 5,394,766 Johnson discloses a human plastic torso that simulates the size, appearance, and movement of a human torso.

The US patent US 5,336,270 discloses a plastic material formed over internal components.

The US patent US 3,501,777 discloses a urethane foam formed over a simulated skeleton.

The US patent US 5,376,127 discloses a polyurethane sheet material surrounding an endoskeleton.

The US patent US 5,166,381 discloses a lower leg cast of a thermoplastic material.

The US patent US 5,526,707 discloses a simulated pregnant manikin for crash tests.

The US patent US 5,703,303 discloses a simulator for testing seats, wherein the simulator is mounted on a boom. In particular, the simulator comprises a base with buttocks and a hinged rear part such that the back can move independently of the buttocks during extension and retraction of an electric actuator or drive. The drive is in the form of a cylinder, one end of which is pivotally connected to an inner surface of the spine. The simulator also includes upper leg portions or thighs, which are pivotally connected to the buttocks via ball joints. Each thigh is also controllably driven by its own respective electric drive or actuator in the same manner as the actuator drives the spine.

The forces and torques occurring on a robot arm can be measured directly by using a joint force sensor, which essentially has a construction of a plurality of associated sections and transducers includes, which measure the deformations of the associated sections. The most widely used transducer for this purpose is the strain gauge, which can be used in addition to piezoelectric, magnetostrictive, magnetic and other transducers. For this purpose, the US patent US 4,320,092 By Giovinazzo, for example, a transducer that has six degrees of freedom and is designed so that it outputs electrical signals that reflect the forces and movements acting on it.

The Forces and torques can do that Beyond that also indirectly by that on the joints a manipulator acting forces are measured. at Joints driven by DC electric motors the force is indirectly proportional to the armature current. In joints, which are powered by hydraulic motors, they are proportional to the back pressure.

Some scientific studies on the movement of the human Body based on the use of markers that attached to the body of a human being. These marks can then depend on time to track the movement patterns of different parts of the body.

The Marking certain examined points, so for example the Joints of the body, this represents only the first step to analyze the movements of the person. Before the execution any analysis must capture the tags and their Positions are measured. Such a measurement can be expensive and be time consuming. For example, athletes wore the early film studies of the human body participated in crosses (X) on their joints while watching a football wait or do some other athletic exercise. The researchers then went through the film one after the other assigned numbers to the positions of the cross marks to data to arrive, the analysis of forces, accelerations and the like served more.

The measurements of the positions of the markers were automated in various ways. An example of this is the one in the US patent US 4,375,674 approach described by Thornton. The Thornton kinesimetry device relies on one or more incandescent lamps attached to a test person's body as markings. The three-dimensional position of each mark is determined by triangulation on the basis of the output signals of a number of video cameras directed to the subject. This allows the creation of a time-dependent motion diagram for each marker.

The use of markers to provide three-dimensional information without triangulation or multiple markers is disclosed in US Pat US 4,539,535 by Spackova et al. proposed. An equilateral triangle is attached to a test person to be photographed by a video camera. With a rotation of the examiner from one side to the other, the shape of the triangle to be seen changes. A computer determines the spatial orientation from the extent of these changes.

all these approaches is the use of markers or Signal sources together, carried by a test person or held, whose movement is measured.

It However, there are also a number of devices on it based that a human user according to the respectively executed Movements captured the properties to be explored. In one In such a system, the inspectors carry no markings, while a picture of them is being recorded. Instead of an operator picks up the properties to be explored Using a light pen or similar Device forth.

The US patent US 4,252,433 by Dewar Jr. et al. discloses a visual motion tracking system in which the movement of an object is accomplished by providing a screened target that moves with the object. A solid line scan camera captures the raster of the target as it moves relative to the camera, the electronic output of the camera reflecting the light and dark areas of the target being analyzed by electronic circuitry for movement of the target and thus the monitored object to determine. The resulting electronic signal representing the movement of the object is useful in coordinating the movement of a robot operating on the object during its movement.

Glastonbury, CT, Qualisys, Inc., sells a kinematic measuring device called "PC Reflex 3D 60 Motion Measurements System." The system is designed to measure the movement of objects in real time, producing both qualitative and accurate results within seconds quantitative results The system comprises the following components: (1) multiple position sensors (camera systems), each comprising a specially designed video camera and a specially designed video processor; (2) software enabling the user to obtain a desired field of view of the camera To build position sensors, the desired field of view calibrate and measure the measured spatial coordinates (x, y) of the target sensors attached to an object in the calibrated field of view in real time; (3) passive reflective target sensors of various sizes and shapes, which also may use "Standard Scotchlite 3M ^™ " brand reflective paint; (4) a calibration frame used to control the volume of the desired field of view using software calibration routines can be calibrated.

Seat force sensors mounted in a seat for generating electrical signals representing a force or weight acting at various locations on the seat are known. For example, the US patent US 5,232,243 by Blackburn et al. Layered sensors for determining the position and weight of seated persons.

The US patent US 5,474,327 von Schousek discloses a seat pressure sensor with eight variable resistance pressure sensors installed in a seat cushion. The response of each sensor to a pressure exerted by the seated person is sensed by a microprocessor which calculates the total weight and weight distribution.

The US patent US 4,507,466 von Baldwin discloses a teaching dummy that simulates many of the touch impressions as well as the outward appearance of a real human body, and that educates medical students to practice real medical techniques.

Disclosure of the invention

A Object of the present invention is to provide a method and a system for wear and tear Soil test of a seat by means of a more accurate simulating the real conditions better by simulating the sitting activity (entry and exit simulation) of a Man-made negative changes to one Seat, especially vehicle seat, is possible.

Known is a method of wear testing a Seat by simulation of the movement sequence during sitting and sitting down of a human (test person) on a seat (entry and exit simulation), which is performed by means of a robot, the its dummy robot arm has a test dummy, the the geometric properties of a human body is modeled and which in a first step by means of recording devices kinematic data of motion sequences of a human Gathered by superposition of body in a second step determined data from a seat pressure distribution measurement be dynamized at the seat, after which the gained dynamic, kinematic data of such a defined sequence of movements in one third step of a robot control of the robot supplied Be the test dummy for wear testing of the seat relative to the seat in perpetual cyclical To move movements according to the movement sequence thus determined.

The Task for providing a method for wear and soiling test of a seat to the more accurate, the real one Conditions better corresponding simulation of the sitting activity (Entry and exit simulation) of a man-made negative Changes to a vehicle seat, starting from the known method solved by that in the won dynamized, kinematic data for defining a movement sequence a robotic arm of a robot in the detection of kinematic Data of the movements of the subjects of at least a vehicle-specific type dependent on a particular type of vehicle and / or seat specific specifications and one on the robotic arm attached test dummy different, specifiable proband specific Properties and / or the seat various seat-specific characteristics for standardizable wear and / or soiling test assigned to a seat.

Known is also a robot with a robot control for wear testing a seat in the obtained dynamized, kinematic data for determining the sequence of movements of a robot arm in sequence the acquisition of the kinematic data of the movement sequences a subject relative to the seat are stored, which also by overlay of determined data from a seat pressure distribution measurement on the Seat were dynamized. The robot also has a test dummy, the geometric properties of a human body is reproduced and in ongoing cyclical movements relative to the seat relative to the set course of motion is movable to the seat.

This Robot becomes more accurate, better suited to real conditions Simulation of sitting activity (entry and exit simulation) human-caused negative changes a vehicle seat improved by the dummy test is formed so that on the body of the dummy test various, predefinable probe-specific properties by attachment different materials and / or devices better simulated are.

Under a kinematic movement The invention understands the movement of a body in space, which is described by the variables path, speed and acceleration. At first the external forces are not considered. If these kinematic movements are superimposed with the forces acting on them, as is the case, for example, when sitting on a vehicle seat as a function of the person sitting up, the forces are also taken into account when determining the motion sequences. The invention then speaks of dynamized, kinematic data for determining the movement of a person when sitting on a vehicle seat.

The Problem is that the movements of the People entering and exiting for a vehicle-specific and / or On the other hand, seat-specific influences are also proband-specific are of great importance and therefore the movements are not uniform. Each vehicle type and within one vehicle type different types of seats call special movements out. These movements in turn change specific to a specific sample by their size, weight, Behavior patterns and especially by their clothing etc.

In preferred embodiment of the invention, the method is through a fourth and fifth step. The steps according to the invention are based on a first to fourth test variant for Wear and contamination behavior test explained.

In preferred embodiment of the invention, the invention follows Method of a first test variant first one fourth step, namely dynamic, kinematic data for determining the movement sequence of the robot arm, by means of at least a standard subject to at least one specific vehicle type determine, wherein in the particular vehicle type a standard seat type or different deviating seat types can be arranged, so that for the particular type of vehicle ["Audi A4" the AUDI AG or "Passat" of the Volkswagen AG] in each case a standardized one Basic data set for a standardized seat type and a standardized one Subjects and deviating variant datasets for determined different seat types for the standardized subjects become.

Under Determination of the dynamic, kinematic data for determination the movement follows the procedure in a second variant in a fourth step, in which the dynamic, kinematic Data for determining the movement sequence of the robot arm on a Standard subjects, different from the norm subject deviating Subjects or a classified subject of a subject spectrum be determined on at least one particular vehicle type by different Seat types, including, for example, the standard seat type, arranged so that for the particular type of vehicle ["Audi A4 "of the AUDI AG or" Passat "of the Volkswagen AG] in each case one variant dataset deviating from the standardized basic dataset for different types of seat of a standard subject, of the standard subject deviant subject type or a classified subject type of a subject spectrum.

Thereby For example, according to the first Test variant for a standard subject, for the same or similar vehicle types (middle class) for example "Audi A4 "of the AUDI AG or" Passat "of the Volkswagen AG and the same standard seat types or different seat types arranged in these vehicle types, for the dynamic, kinematic data for determination of the course of motion have been determined, comparative measurements with regard to wear testing and / or testing the soiling behavior of a seat type, including the standard seat type become.

These Wear test and / or testing of Anschmutzverhaltens of a seat type then depends namely only from the standard subject and the respective seat type.

Further can according to the second test variant for a standard subject, different subject types or Classified subjects of a subject spectrum for the same or similar vehicle types (middle class) for example "Audi A4 "of the AUDI AG or" Passat "of the Volkswagen AG and the same arranged in these types of vehicle standard seat types or different Seat types for the dynamized, kinematic data for Determining the course of motion have been determined, comparative Measurements regarding wear test and / or Testing the soiling behavior of a seat type, including of the standard seat type.

These Wear test and / or testing of Anschmutzverhaltens of several types of seats then depends namely only from the standard subjects, of which evanescent subject types or classified subjects of a subject spectrum and the respective Seat type off.

In addition, however, in a third test variant, for example, for a standard subjects for different types of vehicles ["Polo" or "Passat" of Volkswagen AG] and unequal arranged in these types of vehicles seat types have been determined for the different dynamic, kinematic data for determining the movement sequence , comparative measurements regarding Wear test and / or examination of the soiling behavior of a seat type are performed.

After all can also be in a fourth test variant, for example for a standard subject, deviating subjects or a classified subject of a subject spectrum for different types of vehicles ["Polo" or "Passat" the Volkswagen AG] and unequal, arranged in these vehicle types, Seat types for the different dynamic, kinematic Data that has been determined to determine the movement sequence are comparative measurements for wear testing and / or testing the soiling behavior of a seat type be performed.

The Wear test and / or test of soiling behavior then depends on the third test variant of the Vehicle types, the standard subjects and the respective seat types from.

The Wear test and / or test of soiling behavior then depends on the fourth test variant of the different vehicle types, the standard subjects, from the standard subjects deviant subjects or classified subject types of a Spectrum of subjects, as well as the respective seat types.

All Test variants are according to the invention Procedure extended to that in a fifth Step the respective seat type and / or the test person, the standard test person, deviating subject types or the classified subject types of a subject spectrum, different materials can be assigned variably can.

Now the test result depends on the wear test and / or testing the soiling behavior of the test variants from the materials used, the at the respective subject type and / or Seat type are used. At the test dummy previously attached different materials respectively for the seat type appropriate materials and the wear test and / or testing the soiling behavior is then under the respective selected boundary conditions.

Become the materials on the subject type and / or the seat type also varies, Of course, there is an overlay of the results, which are no longer just different Movement - fourth step - [vehicle type, Seat type, subject type], but also of the different materials seat and / or subject.

particularities The configuration of the method is that the used Materials of test dummy, according to a previous analysis of clothing habits of subjects, special clothing-specific properties such as buttons, Rivets, embroidery, sewing, rhinestones or the like exhibit.

These Materials that are attached to the test dummy, even a particular one by the previous analysis of Clothing habits determined age group of subjects attributable.

moreover are the materials attached to the test dummy be, in a further embodiment of the invention, depending the age group and / or clothing habits of the identified Age group of subjects and those of the respective subjects or the determined age group of the subjects wearing seasonal materials, in particular summer or winter clothing materials assignable.

After all allows the method in a preferred embodiment of Invention that the materials used in the test dummy be attached, in addition to liquids be moistened and / or additionally with dirt particles be provided, so that more accurate investigations of the wear test and / or the soiling behavior of a respective seat type in at least a vehicle type or different types of vehicles with the same or different materials are feasible.

The Materials of the seat to be tested can also be varied by the materials in different Wear and / or contamination behavior tests treated by previous preventive measures.

To the preventive treatment measures to be tested Seat belongs for example a complete or partial surface modification, in particular Impregnation and / or partially modified material usage on the type of seat to be tested.

Further preferred embodiments of the invention will become apparent from the others, in the subclaims mentioned features.

The Invention will become even closer with reference to figures explained. Show it:

1A - 1D a movement of a subject when exiting a certain type of vehicle in which a certain type of seat is arranged;

2 a robot by means of a wear test and / or testing of Schmschmutzverhaltens executable according to the inventive method;

3 a device for measuring the seat pressure distribution by means of their measurement results, the kinematic data of the movements of a subject are dynamizable and

4 a representation of the seat pressure distribution of the measuring device according to 3 of a subject on a particular seat type.

embodiment the invention

In A first step will be taken by recording devices, the are able to capture motion sequences - like Video camera, infrared cameras or the like - kinematic Data of movements of a human body detected.

Such a sequence of movements show in a sequential image sequence 1A to 1D , For example, on each of the figures is a subject 10 presented on the one hand, a standard subject 10 _N can be, for comparative wear and / or soiling behavior tests as a subject 10 _N with standardized sizes and weights. On the other hand, the detection of the movements but also with a normal subject from 10 _N differentiating different subjects 10 _i or a range of subjects 10 _s corresponding subject type 10 _i be determined. The standard subject 10 _N and the subject spectrum 10 _s So are a subgroup of the subject type 10 _i , The standard subject 10 _N is a certain standardized human while in a subject spectrum 10 _s several subjects 10 _i of a spectrum [size, weight, age, habits, etc.].

The determination of the kinematic data of the movement sequence can be dependent on a specific vehicle type 12 _i according to the first and second test variant for a vehicle type 12 _i for example standard vehicle type 12 _N or for different vehicle types 12 _i , be determined according to the third and fourth test variant.

The standard vehicle type 12 _N For example, is a similar type of vehicle various vehicle manufacturers with similar structural dimensions in terms of ground clearance or the size of the available manhole or the position of a seat within the standard vehicle type 12 _N , So there is the possibility kinematic movements of the same or different vehicle types 12 _i to investigate.

The same procedure applies to the seat type 14 , the standard seat type 14 _N can be standardized, while of course also different types of seats 14 _i can be used, in which the kinematic data of a subject 10 _i be determined.

So show the 1A to 1D the starting position, for example, of a standard subject 10 _N when sitting on a standard seat 14 _N for example, in a standard vehicle type 12 _N while through the 1B . 1C and 1D the kinematic movement of the subject 10 _N can be determined when disembarking.

Of course, the reverse process of boarding a subject is also 10 _N equally identifiable in a motor vehicle.

The associated robot 100 according to 2 has a robot controller 104 designed for this purpose from the dynamic, kinematic motion studies according to the 1A to 1D to be able to process dynamic, kinematic data originating from the human body. In a third step, the data storage, so that the dynamic, kinematic movement of the subject 10 _N to 1A to 1D when boarding and alighting accordingly by a dummy test 16 can be adjusted. The test dummy 16 has a buttock shell 16A and a backrest shell 16B on and is the geometric properties of a human body (proband 10 _i . 10 _N . 10 _s ). The seat or seat type to be tested 14 Of course, also has a seat part 14A and a backrest 14B on.

The dynamization of the method is based on the fact that the kinematic data of movements of a human body determined by recording devices in the first step with the data determined from a seat pressure distribution in a second step 200 according to the 3 and 4 be dynamized, after which the obtained, dynamized, kinematic data of the robot controller 104 of the robot 100 can be fed.

The 3 and 4 show a Sitzdruckmessmatte 202 for detecting a seat distribution pattern 208 according to 4 in the seat part 14A a seat 14 is arranged. The seat pressure distribution measurement also has a measuring device 204 and an evaluation device 206 on.

To 4 is a seat pressure distribution pattern 208 can be determined, with strong pressures p _{1 are represented} differently from lower pressures p ₂ and this data with the kinematic data be superimposed, so that on the seat part 14A Acting forces and directions of force allow a dynamization of the kinematic data.

The invention now consists in particular in recognizing that the user according to test variant 1 to 4 is capable of substantially identical or different vehicle types 12 _i and / or substantially the same and / or different seat types 14 _i under determination of a subject 10 _i , for example, a standard subject 10 _N or a spectrum of subjects 10 _s Representative subject type 10 _i can be, a variety of movements with dynamic, kinematic data can be determined.

The invention thus consists in that the determination and storage according to step one to three under certain boundary conditions in the robot 100 or the robot controller 104 takes place, in which data vehicle-specific and / or seat-specific specifications are incorporated, with doing, depending on which subject 10 _i is measured in the determination of the movement sequence, different classifications per vehicle type 12 _i , Seat type 14 _i or subject type 10 _i possible are.

The procedure is carried out by means of the dummy test 16 in a fifth step to that effect even further extended by additionally different, specifiable, proband specific and / or the seat-specific properties can be selected or predetermined, each of the seat type 14 _i or subject type 10 _i be assigned, so that a standardisable wear and / or soiling test of a seat 14 _i with specifiable seat-specific and / or proband specific boundary conditions is feasible.

in the Specifically, the method is applied as follows.

For example, according to the fourth step of the first test variant, the detection of the dynamic, kinematic data for determining the movement sequence of the robot arm 102 by means of a standard subject 10 _N on a specific vehicle type 12 ₁ performed in which, for example, a standard seat type 14 _N or a different seat type 14 _i is arranged so that for the particular vehicle type 12 ₁ in each case a standardized basic data set for a standardized seat 12 _N and deviating variant records for different seat types 14 _i can be determined.

According to the fourth step of the second test variant, the detection of the dynamic, kinematic data for determining the movement sequence of the robot arm 102 of the standard subjects 10 _N or from different from the deviant standard subjects 10 _N or different classified subjects 10 _i a subject spectrum 10 _s on a specific vehicle type 12 _i be determined, in which the standard seat type 14 _N or different seat types 14 _i be arranged so that differs from a specific vehicle type 12 _i starting in each case deviating from the standardized basic data set Variantaufatensätze for different types of seats 14 _i for a standard subject 10 _N and / or for a deviating subject 10 _i and / or one for a subject spectrum 10 _s standing subjects 10 _i can be determined.

According to the fourth step of the third test variant, for example, for a standard subjects 10 _N for different vehicle types 12 _i and unequal in these types of vehicles 12 _i arranged seat types 14 _i are determined for the different dynamic, kinematic data for determining the movement sequence, so that comparative measurements in terms of wear testing and / or testing the soiling behavior of a seat type 14 _i can be performed.

According to the fourth step of the fourth test variant, for example, for a standard subjects 10 _N or deviating subjects 10 _i or a classified subject 10 _i a subject spectrum 10 _s for different vehicle types 12 _i and unequal in these types of vehicles 12 _i arranged seat types 14 _i for the different dynamized, kinematic data for the determination of the motion sequence are determined, whereby comparative measurements in terms of wear test and / or testing the soiling behavior of a seat type 14 _i can be performed.

Here, in the fifth step of the method of the present invention, the various types of seats 14 _i and / or the dummy test 16 different materials are assigned.

The materials used in at least one vehicle type 12 _i used different seat types 14 _i and / or the dummy test 16 are materials that have been determined according to a previous analysis. For example, belts, jeans or fabric clothing, jackets made of leather or jeans material or fabric, other accessories on the clothing - such as mobile phone bags, buttons, rivets, embroidery, sewing, rhinestones or the like. According to the respective clothing habits of the test persons or one of a test person spectrum 10 _s representative subjects 10 _i a clothing-specific examination of the wear and / or soiling behavior can be carried out, whereby respective further conditions [test person type 10 _i vehicle type 12 _i , Seat type 14 _i ] is selected from a series of classified motion sequences as described above have been.

The materials used on the test dummy 16 can be attached, for example, a standard subjects 10 _N or a range of subjects 10 _s representative subjects 10 _i associated with a particular age group of subjects determined by the previous analysis of clothing habits 10 _i assigned.

There may also be materials on the test dummy 16 depending on the age group and / or the clothing habits of the determined age group of the subjects 10 _i . 10 _N 10 _s that of the respective subjects 10 _i . 10 _N 10 _s worn seasonal materials, especially summer or winter clothing materials correspond.

The materials the at the test dummy 16 can be additionally moistened with liquids and / or additionally provided with dirt particles. The test dummy 16 For this purpose has special devices for supplying liquids to the material, so that the amount and time period and distribution of the liquid can be controlled.

The materials of the seat to be tested 14 _i may also be varied to treat the materials in various wear tests and / or soiling tests by previous preventive measures.

This includes, for example, a complete or partial surface modification, in particular impregnation and / or partially modified use of material on the seat to be tested 14 _i ,

10

Family

10 _i

subjects type

10 _N

standard subjects

10 _s

subjects range

12

vehicle type

12 _i

vehicle types

12 _N

Standard vehicle type

14

Seat / Seat Type

14 _i

various seat types

14 _N

Standard seat type

14A

seat part

14B

backrest

16

Prüfattrappe

16A

buttocks shell

16B

backrest shell

100

robot

102

robot arm

104

robot control

200

Seat pressure distribution measurement

202

Seat pressure measuring mat

204

gauge

206

evaluation

208

Seat pressure distribution pattern

p1

stronger print

p2

less print

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

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Claims (13)

Method for testing wear and / or checking the soiling behavior of a seat ( 14 ) by simulating the sequence of movements when a person rises and falls (proband, 10 _i ) on a seat (entry and exit simulation), which by means of a robot ( 100 ) carried out on his free robot arm ( 102 ) a test dummy ( 16 ), which is modeled on the geometric properties of a human body, wherein [in a first step] kinematic data of movements of a human body are detected by recording devices, which are determined by superposition of [in a second step] data from a seat pressure distribution measurement ( 200 ), after which the obtained dynamized, kinematic data [in a third step] of a robot controller ( 104 ) of the robot ( 100 ), characterized in that the dynamized, kinematic data (in a fourth step) for determining the movement sequence of the robot arm ( 102 ) in the acquisition of the kinematic data of the movements of the subjects ( 10 ) [Step 1 to 3] of at least one specific vehicle type ( 12 _i ) dependent vehicle-specific and / or seat-specific specifications and [in a fifth step] the test dummy ( 16 ) various, specifiable probe-specific properties and / or the seat ( 14 _i ) Various seat-specific properties for the standardizable wear and / or soiling test of a seat ( 14 _i ) be assigned to. A method according to claim 1, characterized in that the dynamic, kinematic data for determining the movement sequence of the robot arm ( 102 ) by means of at least one standard subject ( 10 _N ) on at least one specific type of vehicle ( 12 ₁ ), in which a standard seat type ( 14 _N ) or different types of seats ( 14 _i ), so that for the particular vehicle type ( 12 ₁ ) a standardized basic data set for a standardized seat ( 12 _N ) and variant data sets for different seat types ( 14 _i ) be determined. A method according to claim 1, characterized in that the dynamic, kinematic data for determining the movement sequence of the robot arm ( 102 ) on a standard subject ( 10 _N ) or a different subject type ( 10 _i ) or a classified subject type ( 10 _i ) of a subject spectrum ( 10 _s ) on at least one specific type of vehicle ( 12 _i ), in which different seat types ( 14 _i ), so that for the particular vehicle type ( 12 _i ) a standardized basic data set for the at least one standard subject ( 10 _N ) or a subject type deviating from the norm subject ( 10 _i ) variant variant data record or one from the standard subject ( 10 _N ) or deviating subject type ( 10 _i ) or for a classified subject ( 10 _i ) of the subject spectrum ( 10 _s ) for different seat types ( 14 _i ) be determined. A method according to claim 2, characterized in that in at least one vehicle type ( 12 _i ) used different seat types ( 14 _i ) and / or the test dummy ( 16 ) Different materials are assigned. A method according to claim 2, characterized in that in at least one vehicle type ( 12 _i ) used different seat types ( 14 _i ) and / or the test dummy ( 16 ) are assigned to different materials, the materials being analyzed according to a previous analysis of the clothing habits of the test persons ( 10 _i ) have special clothing-specific properties, such as buttons, rivets, embroidery, sewing, rhinestones or the like. A method according to claim 3, characterized in that the materials on the Prüfattrappe ( 16 ) are attached to a specific age group of subjects identified by the previous analysis of clothing habits ( 10 _i ) assigned. A method according to claim 3, characterized in that the materials on the Prüfattrappe ( 16 ), depending on the age group and / or the clothing habits of the test persons ( 10 _i ), by the respective subjects ( 10 _i ) worn seasonal materials, in particular summer or winter clothing materials correspond. Method according to one of Claims 1 to 7, characterized in that the materials used in the test dummy ( 16 ) are additionally moistened with liquids and / or additionally provided with dirt particles. Method according to one of claims 1 to 8, characterized in that the materials of the seat to be tested ( 14 _i ) and the materials are treated in various wear tests by previous preventive measures. A method according to claim 9, characterized in that as preventive treatment measures of the seat to be tested ( 14 _i ) by a complete or partial surface modification, in particular impregnation and / or partially changed use of material on the seat to be tested ( 14 _i ) is carried out. Robot ( 100 ) for the wear test and / or examination of the soiling behavior of a seat ( 14 _i ) with a robot controller ( 104 ) in the previously obtained dynamized, kinematic data for determining the movement sequence of a robot arm ( 102 ) as a result of the acquisition of the kinematic data of the movements of a subject ( 10 _i ) relative to the seat ( 14 _i ) by superimposing determined data from a seat pressure distribution measurement ( 200 ) at the seat ( 14 _i ) are deductible, whereby a test dummy ( 16 ), which is modeled on the geometric properties of a human body, in continuous cyclical movements relative to the seat ( 14 _i ) after the specified movement relative to the seat ( 14 _i ), characterized in that the test dummy ( 16 ) is formed on the body of the test dummy ( 16 ), various predeterminable proband specific properties can be simulated by attaching different materials and / or devices. Robot according to claim 11, characterized in that the test dummy ( 16 ) a buttock shell ( 16A ) and a back shell ( 16 ), which can be provided separately with different, specifiable, probe-specific properties, wherein the shells ( 16A . 16B ) can be provided with the same or different materials and / or the same or different devices can be equipped. Robot according to claim 12, characterized in that on the test dummy ( 16 ) a device for wetting the test dummy ( 16 ) arranged materials is arranged with liquids. (Moisture simulation)