EP2331381A1 - Verfahren zum bestimmen einer eigenschaft eines fahrweglageparameters - Google Patents
Verfahren zum bestimmen einer eigenschaft eines fahrweglageparametersInfo
- Publication number
- EP2331381A1 EP2331381A1 EP09783334A EP09783334A EP2331381A1 EP 2331381 A1 EP2331381 A1 EP 2331381A1 EP 09783334 A EP09783334 A EP 09783334A EP 09783334 A EP09783334 A EP 09783334A EP 2331381 A1 EP2331381 A1 EP 2331381A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- position parameter
- determined
- model
- detection
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000001514 detection method Methods 0.000 claims abstract description 57
- 238000004422 calculation algorithm Methods 0.000 claims description 34
- 238000012545 processing Methods 0.000 claims description 15
- 238000013519 translation Methods 0.000 claims description 9
- 230000001419 dependent effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000013178 mathematical model Methods 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/047—Track or rail movements
Definitions
- the present invention relates to a method for determining a property of at least one position parameter, in particular a position parameter disturbance, of a travel path for a vehicle, in which detection values of at least one detection parameter influenced by the position parameter are detected at a vehicle traveling on a route section of the travel path and from the detection values of at least one position parameter for the route section is determined.
- the present invention further relates to a method for controlling a vehicle and a vehicle for carrying out the method according to the invention.
- the dynamic load of the vehicle components in operation depends heavily on the condition of the traveled route.
- This condition of the route is represented, inter alia, by so-called position parameters, which in the case of a rail vehicle are usually subsumed under the term "track position".
- the track position refers to the rule, the location of a railway track in the horizontal and / or vertical direction and, where appropriate, the mutual altitude of both rails of the track.
- the track position of a particular section of the route is elaborately determined by so-called measuring vehicles, which directly acquire, store and, if appropriate, make available in the form of suitable data sets via a corresponding complex sensor system the properties of the position parameters of the track.
- the measuring vehicles on the one hand (in the purchase and use) are relatively expensive and on the other hand (due to the low realizable speeds during the test drive) only at certain times with a low utilization of the route (for example, at night, at weekends, etc.) can be used to prevent the regular traffic on this route.
- a rapid deterioration of the track condition is to be expected, this leads to insufficiently long intervals between the test drives.
- the present invention is therefore based on the object to provide a method and a vehicle of the type mentioned above, which does not have the abovementioned disadvantages or at least to a lesser extent and in particular in a simple and cost-effective manner a detection and use of the properties of the position parameters a section of track allows.
- the present invention solves this problem starting from a method according to the preamble of claim 1 by the features stated in the characterizing part of claim 1.
- the present invention is based on the technical teaching that a simple and cost-effective detection and use of the properties of the positional parameters of a route section is possible if the current value of the attitude parameter is determined from the detection values as a function of the model data of a previously determined vehicle model of the vehicle. being related to the vehicle model between the positional parameter and the at least one detection parameter influenced by the positional parameter.
- a (previously established) vehicle model it is possible in an advantageous manner (possibly in real time) to draw conclusions about the sought location parameters.
- This can be any suitable mathematical model via which a connection can be established between the acquisition variable and the location parameter.
- the present invention therefore relates to a method for determining a property of at least one position parameter, in particular a position parameter disturbance, of a travel path for a vehicle, in which detection values of at least one detection parameter influenced by the position parameter are detected on a vehicle traveling on a route section of the travel path, and from the detection values, the at least one position parameter for the route section is determined.
- the current value of the position parameter is determined from the detection values as a function of the model data of a previously determined vehicle model of the vehicle, wherein a relationship between the vehicle model and the vehicle model is established
- Position parameter and the at least one influenced by the position parameter detection variable is made.
- the current value of the position parameter is calculated in a recursive method from the detection values as a function of the model data of the vehicle model.
- the vehicle model is in this case designed such that it directly reflects the relationship between the detection values of the detection variable and the desired location parameter (s) or (with sufficient precision, for example in sufficiently good approximation) one to the desired location parameter ( n) leading recalculation on the basis of the acquisition values of the entry size.
- an observer algorithm well known from the field of control technology which, depending on a current detection value, outputs an associated current estimate of at least one state variable of the vehicle, which is influenced by the position parameter, and it is then determined in dependence on the model data of a previously determined vehicle model of the vehicle, the current value of the position parameter.
- the vehicle model may be any suitable mathematical model that determines the relationship between the attitude parameter and the at least one State variable represents. Such models are well known in the field of vehicle dynamics.
- the present method it is possible, inter alia, to draw sufficiently reliable conclusions on the desired position parameter or the desired position parameters, ie, therefore, the current state of the traveled section on the basis of the detection values anyway already present on the vehicle detection devices (for example, the measured values on the vehicle sensors).
- the vehicle detection devices for example, the measured values on the vehicle sensors.
- the state of the guideway be actively influenced, for example, to achieve a particularly quiet vehicle running and / or a desired, optionally optimized wear behavior of the vehicle components, in particular the suspension components.
- the properties of the respective position parameter can be both the current (possibly absolute) value of the position parameter. Likewise, it may additionally or alternatively also be a deviation of the position parameter from a predefined setpoint value, that is to say a position parameter disturbance or a position parameter error.
- the present invention therefore relates to a method for determining a property of at least one position parameter, in particular a position parameter disturbance, of a driving path for a vehicle, in which detection values of at least one detection variable influenced by the position parameter are detected on a vehicle traveling on a route section of the driving path and the at least one position parameter for the route section is determined from the detection values becomes.
- the at least one attitude parameter is determined for the route segment using an observer algorithm, wherein the observer algorithm is designed to output, depending on a current detection value, an associated current estimate of at least one state variable of the vehicle which is influenced by the attitude parameter.
- the current value of the position parameter is determined, the vehicle model representing the relationship between the position parameter and the at least one state variable.
- any suitable mathematical model can be used for the vehicle model, which the different bodies of the vehicle model.
- Vehicle and their coupling represents.
- the vehicle model was determined using a, in particular non-linear, dynamic multi-body model.
- Such multi-body models are well known in the field of vehicle dynamics and are often used to predict the driving safety and running quality of vehicles.
- the model is linearized by a (well-known) suitable procedure, so that a linear state space model is obtained as the vehicle model.
- the inputs of the vehicle model then form the properties to be determined of the desired position parameter or parameters (in the case of a rail vehicle, for example, the track position or the track position interference), while the outputs represent the relevant detection variable or detection variables.
- the states of the modeled system are then, for example, the position or the speed of certain vehicle components of interest (in a rail vehicle, for example, the wheels or wheelsets, the chassis frame and other vehicle components such as the car body, etc.).
- the present inventive method can be carried out in principle with an arbitrarily complex or complex modeling of the vehicle.
- one or more degrees of freedom up to all six possible degrees of freedom can be taken into account for the movement of a vehicle component.
- the observer algorithm can in principle also have been generated in any suitable manner.
- the observer algorithm was determined using the vehicle model, since this can be achieved in a particularly simple way sufficiently precise results.
- the vehicle model may have been included in the determination of the observer algorithm.
- a position parameter disturbance is determined, wherein the vehicle model was determined by linearization of the multi-body system and a suitable shape filter was used to take into account the real noise behavior of the position parameter disturbance in determining the observer algorithm at at least one input of the vehicle model.
- Such shape filters are well known in vehicle technology (see, for example, Laun, R .: Active vibration damping by adhesion control based on a state controller, University of Applied Sciences Offenburg, DE, 1996).
- the corresponding parameters of such shape filters For a rail vehicle, the corresponding parameters of such shape filters
- the publication "ORE Question B 176 - Bends with radially adjustable wheelsets" (Railway Engineering Publications - ETF, Paris, FR) are to be taken.
- any suitable mathematical algorithms may be used for the observer algorithm.
- it may be a so-called Luenberg observer, as described in the publication: Geering, Hans Peter, Control Engineering (5th, Sprintarb, u., Ed., Springer Verlag, Berlin, 2001,! SBN 3-540 -41264-6) is known.
- a Kalman filter is particularly well suited in the present case as an observer algorithm, since these are preferably used when the input variables of the system and / or the measured variables are corrupted by stochastic variables (“noise”) take advantage of that
- the method according to the invention can only be used after passing through the section of track using the values of the relevant detection variable recorded thereby. Preferably, however, it is provided that it is carried out while the vehicle is traveling on the route section, in particular in real time.
- the detection of the detection variable (s) can basically take place at any suitable location in or on the vehicle.
- the detection variable is preferably determined on a chassis of the vehicle, in particular measured, since in this way particularly good results are possible in determining the properties of the position parameter.
- any detection variables can be detected, which allow a conclusion on the properties of the position parameter via a coupling manifested in the vehicle model used.
- a spring travel of at least one spring unit supported on a wheel of the chassis is determined as the detection variable.
- the method according to the invention can basically be used for any desired vehicles. It can be used particularly advantageously in connection with rail vehicles, so that it is preferably provided that the vehicle is a rail vehicle and a property of the track position is determined as a position parameter, in particular a track position disturbance.
- any suitable modeling of the rail vehicle can also be selected here.
- the vehicle model has been determined on the basis of an arrangement with two wheelsets, one supported on the wheelsets chassis frame and supported on the chassis frame car body, since this can be achieved with particularly good results.
- the geometric relationships of the components of the vehicle are taken into account.
- the geometric relationships of the components of the vehicle are taken into account.
- the time delay dependent on the driving speed is taken into account for the effect of a position parameter between the leading wheelset and the trailing wheelset, in particular via a travel-speed-dependent delay element.
- the modeling of the wheel-rail contact has a significant influence on the design of the method.
- the wheel-rail contact via a spring-damper arrangement is taken into account for the vehicle model, wherein in particular a high rigidity of the spring-damper arrangement in the direction of the vertical axis of the vehicle is assumed.
- an adaptive so-called extended Kalman filter is preferably used as the observer algorithm, since this makes possible a particularly simple determination of the position parameter.
- the observer algorithm is designed such that a current estimated value of at least one state variable of the vehicle is used as the current value of the position parameter.
- the wheel-rail contact is assumed to be infinitely stiff for the vehicle model.
- an immediate use of the estimates provided by the observer algorithm for the desired property of the position parameter is not readily possible and it is preferably determined using a current estimate based on the model data of the vehicle model, the associated current value of the position parameter.
- the detected values of the at least one position parameter can basically only be used up-to-date in the vehicle. Preferably, however, it is provided that the at least one position parameter for the traveled section is logged in order to make it accessible for later use.
- the present invention further relates to a method for controlling a vehicle, in particular a rail vehicle, in which a method according to the invention on a leading chassis of the vehicle at least one property of a position parameter of a currently traveled section is determined and a trailing chassis of the vehicle using the determined property the position parameter is controlled.
- the present invention relates to a vehicle, in particular a rail vehicle, having a processing unit, which is designed to carry out the method according to the invention, and a detection unit, which is designed to detect the detection values.
- Figure 1 is a schematic view of a preferred embodiment of the vehicle according to the invention.
- FIG. 2 is a flowchart of a preferred variant of the invention
- FIG. 3 shows a diagram which illustrates the signal flow when carrying out the method from FIG.
- FIGS. 1 and 2 A preferred exemplary embodiment of the vehicle according to the invention in the form of a rail vehicle 101 will be described below with reference to FIGS. 1 to 3.
- a coordinate system is indicated in FIGS. 1 and 2, in which the x-coordinate is the longitudinal direction of the rail vehicle 101, the y-coordinate is the transverse direction of the
- Rail vehicle 101 and the z-coordinate the height direction of the rail vehicle 101 denote.
- the vehicle 101 includes a car body 102, which in the region of both ends each on a chassis in the form of a
- Bogie 103 and 104 is supported.
- the bogies 103 and 104 are in turn supported on a track 105.
- the preceding in the direction of travel bogie 103 comprises two sets of wheels 106 and 107, on the two wheel bearings via a respective primary suspension 108, a bogie frame 109 is supported.
- the car body 102 is in turn supported on the bogie frame 109 via a secondary suspension 110.
- Each of the four primary suspensions 108 is assigned as a detection device a sensor 111 which measures the change in length of the primary suspension 108 in the axial direction (here: z-direction) of the primary suspension 108.
- the measurement signals of the four sensors 111 are fed to a central processing unit 112, and processed in this manner in the manner described below according to the inventive method to determine the track position disturbances of the track 105.
- the sequence of the method is first started in a step 1 13.1 while the vehicle 101 is traveling on a predetermined section of the track 105 to be examined.
- a step 113.2 the current measured values of the four sensors 111 are then detected and forwarded to the processing unit 112.
- a step 113.3 the deviations of the track 105 at the respective wheel contact point of the wheels of the wheelsets 106 and 107 from a target track position in the z-direction are then determined in the processing unit 112 as track position disturbances and stored in a memory of the processing unit 112 for logging (and optionally later processing).
- a step 113.4 it is then checked whether a further determination of the track position disturbances should be carried out. If this is the case, jump back to the step 113.2. Otherwise, the process flow is terminated in a step 113.5.
- FIG. 3 shows the signal flow during execution of the method from FIG. 2.
- the vehicle 101 traveling on the track 105 is acted upon with the real track position as an input variable, whereby the real track position results from the desired track position and the superimposed trackside disturbances.
- the sensors 11 1 on the vehicle 101 each deliver a measuring signal which is superimposed on them by the noise of the sensors and with which the processing unit 112 is fed.
- the processing unit 112 uses a previously determined and stored in the memory of the processing unit 112
- the Kalman filter was previously determined on the basis of a vehicle model in the form of a mathematical model of the vehicle 101.
- the vehicle model was determined using a non-linear, dynamic multi-body model, as they are well known in the field of vehicle dynamics and often used to predict the driving safety and running quality of vehicles.
- the state space of the system is often modeled by linear differential equations that describe the dynamic properties of the system in question and typically have the following form in time-continuous models:
- V n Cx n + you n , (4)
- n denotes the nth sampling cycle.
- the multi-body model has been linearized to simplify the calculations to be performed by the processing unit 112 (particularly with regard to real-time detection of track-bearing disturbances) by a suitable procedure (also well-known) such that a linear state space model was obtained as the vehicle model.
- the vehicle model! based on a multi-body arrangement with the two sets of wheels 106, 107, the bogie frame 109 supported on the wheelsets 106, 107, and the body 102 supported on the bogie frame 109 (which is modeled as a point mass in the model for simplicity).
- an arbitrarily complex or complex modeling of the vehicle 101 is fundamentally suitable for the method according to the invention.
- the degrees of freedom of the above-mentioned vehicle model are used Components 106, 107, 109 and 102 of the multi-body system taken into account, which have a primary influence on the travel (ie the detection size) and / or which are primarily influenced by the track position disturbances (ie the property of the position parameter to be determined).
- a translation in the direction of the vertical axis of the vehicle 101 (z-direction) and a rotation about the longitudinal axis of the vehicle (x-direction) are taken into account as degrees of freedom of the vehicle frame 109, and as degrees of freedom of the chassis frame 109 for the vehicle mode and the car body 102 takes into account a translation in the direction of the vertical axis of the vehicle (z-direction), a rotation about the longitudinal axis of the vehicle (x-direction) and a rotation about the transverse axis of the vehicle (y-direction).
- the modeling of the wheel-rail contact has a significant influence on the design of the method.
- the wheel-rail contact for the vehicle model continues to be considered via a spring-damper arrangement, wherein a high rigidity of this spring-damper arrangement in the direction of the vertical axis of the vehicle (z-axis) is assumed.
- the Kalman filter is usually suitable for the processing of signals that are subject to a so-called white noise.
- corresponding track position disturbances of the track 105 may not be sufficiently accurate for such white noise, so that in the present example a suitable form filter is used to take into account the expected real noise behavior of the track position disturbances in determining the observer algorithm at at least one input of the vehicle model, as described above already described. It goes without saying, however, what use of such shape filters may possibly also be omitted in other variants of the invention.
- the Kalman filter modeled in this manner provides as output a state vector which, in addition to reevaluating the spring travel as discrete states of the vehicle model, provides a sufficiently accurate estimate of the position and velocity of the modeled components of the vehicle 101 in the degrees of freedom considered.
- these are thus 20 discrete states, namely for the two sets of wheels 106, 107 the amount and the speed of translation in the direction of the vertical axis of the vehicle 101 (z-direction) and the amount and the speed of rotation about the longitudinal axis of the vehicle (x-direction) and for the chassis frame 109 and the body 102 respectively the amount and speed of translation in the direction of the vertical axis of the vehicle (z-direction), the amount and the speed of Rotation about the longitudinal axis of the vehicle (x-direction) and the amount and speed of rotation about the transverse axis of the vehicle (y-direction).
- the calculation effort for the processing unit 112 is further reduced by taking into account the geometric relationships of the components of the vehicle 101 in subsequent repetitions of steps 113.2 and 113.3, taking into account that the track position disturbances acting on the trailing axle 107 are limited only by one of the driving speed of the vehicle 101 corresponding time shift of which are different on the leading wheel 106.
- This consideration is made in the present example by inserting corresponding vehicle speed-dependent delay elements at the inputs of the modeled second wheel set 107 in the linearized model.
- the processing unit 112 performs the determination of the track position disturbances during the travel of the vehicle 101 on the track in real time and uses the information obtained about the track position disturbances to control the trailing chassis 104 by transmitting corresponding control commands to the corresponding controls 104.1 of the chassis 104. It is understood, however, that in other variants of the invention, only a corresponding logging of the GieislageDNAen can be done. Second embodiment
- the wheel-rail contact is assumed to be infinitely stiff for the vehicle model, in which case immediate use of the state vector estimates provided by the Kalman filter is not immediately used for the track attitude disturbances can. Rather, in this example, preferably using a current estimate on the basis of the model data of the vehicle model (which reflects just the relationship between the represented by the state vector states of the vehicle and the track position errors) determines the associated current value of the track position disturbances.
- equation (5) A more general approach to determining the current values of the inputs (ie, the attitude parameters) can be derived from equation (5) in the case of an empty matrix D.
- equation (5) the following equation can be used (inter alia for time-discrete models):
- the matrix (C-B) is square (eg the number of inputs and outputs is the same). In this case, by suitably selecting the input and the detection variables, it is preferable to ensure that the matrix C and the matrix B are designed such that the matrix (C-B) has full rank. If the matrix D from the equation (5) or the matrix (C- ⁇ ) from equation (6) is not square or the matrix (C-B) is not full rank, their inverses can not be calculated directly in each case. In this case, so-called (well-known) algorithms can be used to form so-called pseudo-inverses.
- the vehicle model is designed as a time-discrete model such that the current value of the position parameter is calculated in a recursive method from the detection values as a function of the model data of the vehicle model.
- equation (3) the following equations are used:
- the track can be modeled in other variants of the method according to the invention, regardless of the representation of the wheel-rail contact as elastic or elastically mounted component.
- the desired input variable ie the position parameter directly by the observer algorithm estimate without further calculation steps. It should be noted at this point that this represents a self-protected thought.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008048601A DE102008048601A1 (de) | 2008-09-23 | 2008-09-23 | Verfahren zum Bestimmen einer Eigenschaft eines Fahrweglageparameters |
| PCT/EP2009/062329 WO2010034744A1 (de) | 2008-09-23 | 2009-09-23 | Verfahren zum bestimmen einer eigenschaft eines fahrweglageparameters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2331381A1 true EP2331381A1 (de) | 2011-06-15 |
| EP2331381B1 EP2331381B1 (de) | 2013-11-06 |
Family
ID=41280433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09783334.7A Not-in-force EP2331381B1 (de) | 2008-09-23 | 2009-09-23 | Verfahren zum bestimmen einer eigenschaft eines fahrweglageparameters |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20110276203A1 (de) |
| EP (1) | EP2331381B1 (de) |
| AU (1) | AU2009295943A1 (de) |
| CA (1) | CA2737419A1 (de) |
| DE (1) | DE102008048601A1 (de) |
| WO (1) | WO2010034744A1 (de) |
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| US10308265B2 (en) | 2006-03-20 | 2019-06-04 | Ge Global Sourcing Llc | Vehicle control system and method |
| US9950722B2 (en) | 2003-01-06 | 2018-04-24 | General Electric Company | System and method for vehicle control |
| US9956974B2 (en) | 2004-07-23 | 2018-05-01 | General Electric Company | Vehicle consist configuration control |
| US9828010B2 (en) | 2006-03-20 | 2017-11-28 | General Electric Company | System, method and computer software code for determining a mission plan for a powered system using signal aspect information |
| US8914171B2 (en) | 2012-11-21 | 2014-12-16 | General Electric Company | Route examining system and method |
| CN102620943B (zh) * | 2011-01-30 | 2015-06-03 | 国际商业机器公司 | 在车轮检测中调整卡尔曼滤波器的参数的方法及装置 |
| WO2014026091A2 (en) | 2012-08-10 | 2014-02-13 | General Electric Company | Route examining system and method |
| US9255913B2 (en) | 2013-07-31 | 2016-02-09 | General Electric Company | System and method for acoustically identifying damaged sections of a route |
| JP6512588B2 (ja) * | 2013-09-06 | 2019-05-15 | 日本製鉄株式会社 | 軌道状態測定方法及び軌道状態測定可能な営業車両 |
| AT515578B1 (de) * | 2014-03-12 | 2015-12-15 | Siemens Ag Oesterreich | Vorrichtung zur Hinderniserkennung bei Schienenfahrzeugen |
| WO2017164133A1 (ja) * | 2016-03-23 | 2017-09-28 | 新日鐵住金株式会社 | 検査システム、検査方法、およびプログラム |
| CN105923014B (zh) * | 2016-04-27 | 2018-01-02 | 杭州电子科技大学 | 一种基于证据推理规则的轨道高低不平顺幅值估计方法 |
| DE102018207950A1 (de) * | 2018-05-22 | 2019-11-28 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Verarbeitung von Daten im Zusammenhang mit einem Fahrzeug, Decodierverfahren, Codier- und Decodierverfahren, System, Computerprogramm und Computerprogrammprodukt |
| WO2020008525A1 (ja) * | 2018-07-03 | 2020-01-09 | 日本製鉄株式会社 | 検査システム、検査方法、およびプログラム |
| US10771331B2 (en) * | 2018-11-07 | 2020-09-08 | Cisco Technology, Inc. | Closed loop control for fixing network configuration issues to aid in device classification |
| DE102022204758A1 (de) | 2022-05-16 | 2023-11-16 | Siemens Mobility GmbH | Anordnung zur Sicherstellung eines Abstands eines Sensors |
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| JP3733130B2 (ja) * | 2003-07-09 | 2006-01-11 | 泉陽機工株式会社 | 走行装置 |
| US6978858B1 (en) * | 2004-06-14 | 2005-12-27 | Bischoff David R | Visual reference control apparatus for hydraulic actuator systems |
| DE102005028501A1 (de) * | 2005-06-17 | 2007-01-04 | Zf Friedrichshafen Ag | Radaufhängung für ein Fahrzeug |
| DE102006001436B4 (de) * | 2006-01-10 | 2009-08-13 | Zf Friedrichshafen Ag | Verfahren zum Bestimmen wenigstens eines Bewegungszustands eines Fahrzeugaufbaus |
| DE102007051126A1 (de) * | 2007-10-24 | 2009-04-30 | Bombardier Transportation Gmbh | Bestimmung der Restlebensdauer einer Fahrzeugkomponente |
| EP2065688B1 (de) * | 2007-11-27 | 2012-04-18 | Elektrobit Automotive GmbH | Technik zur Detektion von verschobenem Frachtgut |
-
2008
- 2008-09-23 DE DE102008048601A patent/DE102008048601A1/de not_active Ceased
-
2009
- 2009-09-23 AU AU2009295943A patent/AU2009295943A1/en not_active Abandoned
- 2009-09-23 EP EP09783334.7A patent/EP2331381B1/de not_active Not-in-force
- 2009-09-23 US US13/120,266 patent/US20110276203A1/en not_active Abandoned
- 2009-09-23 WO PCT/EP2009/062329 patent/WO2010034744A1/de not_active Ceased
- 2009-09-23 CA CA2737419A patent/CA2737419A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6347265B1 (en) | 1999-06-15 | 2002-02-12 | Andian Technologies Ltd. | Railroad track geometry defect detector |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110276203A1 (en) | 2011-11-10 |
| EP2331381B1 (de) | 2013-11-06 |
| CA2737419A1 (en) | 2010-04-01 |
| DE102008048601A1 (de) | 2010-04-08 |
| WO2010034744A1 (de) | 2010-04-01 |
| AU2009295943A1 (en) | 2010-04-01 |
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