Abstract: A spring-loaded pressure indicator inside the low side quick-coupler of the automotive air conditioner recharge hose. As the user adds refrigerant, the user can look at the pressure indicator on the quick-coupler to determine either the correct refrigerant charge has been reached or that it is approaching the correct refrigerant charge so that the user can stop charging and check the vent temperature in the passenger compartment.

Abstract: A tire rolling resistance testing machine has: a main testing set, an X-axis sensing member and a Y-axis sensing member. The X-axis sensing member and the Y-axis sensing member are configured for testing the tire, wherein the first connecting member and the second connecting member are floatingly mounted between the two X-axis positioning plates and the two Y-axis positioning plates which allow the axial rod to be placed through and perform the test. This design greatly improves the sensitivity of the first connecting member and the second connecting member, and avoids the mutual interference between the X-axis moment and the Y-axis moment when the tire is tested. Therefore, the precision of the test and the accuracy of rolling resistance data is improved.

Abstract: A double-robot system for detecting a flaw of a rim or a spoke includes a movable cart, a lifting platform, a lifting rotating mechanism, and robots. The lifting platform is movably connected to the movable cart in a vertical direction. The lifting rotating mechanism is disposed on the lifting platform. A wheel lifting arm is disposed on each of the left side and the right side of the lifting rotating mechanism. The wheel lifting arms are used for lap joint on a rail where a wheel in detection is located. One robot is fixedly connected to each of the front side and the rear side of the lifting rotating mechanism. Each robot is provided with a tread carrier. The lifting rotating mechanism is also provided with two inner carriers.

Abstract: A storage maintains coefficients that map histogram data elements to tire wear, the coefficients being trained based on a correlation of histogram data to measured tire wear. A processor is programmed to receive a wear data histogram from a vehicle, utilize the coefficients to translate the wear data histogram into a measure of physical tire wear; and send an alert message indicating the estimated tire wear.

Abstract: The present invention relates to a wheel mount for a vehicle test bench for motor vehicles having steerable wheels, wherein the wheel mount comprises a floating plate as well as at least one roller supported on the floating plate and movable with the floating plate in a horizontal plane. According to the present invention, the wheel mount has a first working state, in which the part of the floating plate, on which the at least one roller is supported, is rotatably supported around a vertical axis, which is located ahead of the at least one wheel contact point on the at least one roller with respect to the driving direction of a vehicle located in the roller dynamometer. In addition, the wheel mount has a second working state, in which the part of the floating plate, on which the at least one roller is supported, is rotatably supported around a vertical axis, which is located behind the at least one wheel contact point with respect to the driving direction of a vehicle located in the roller dynamometer.

Abstract: A Fatigue Performance Test induces a traffic analogous, 60 cycle, stress-strain environment into a road pavement cross section through a rolling cyclic fatigue platform. Data from the encounter dynamic reveals where strain build-up is occurring well before external, visually detectable evidence of fatigue failure is present in the pavement sample from cracks or permanent deformation. Responsive tuning of the embedded, sensor firmware establishes a baseline status for the sample whereupon incoming data gathered during the stress-strain encounter dynamic reveals details of fatigue build-up.

Abstract: A sensor device is provided for use in tire inspection. The sensor device is configured for removable placement along the inner surface of the tire. The sensor device includes multiple rows of sensors, which are used to provide signals that can compensate for the effect of vibrations or mechanical agitation as the sensors are passed over the inner surface of the tire. The sensor device may have a profile that allows for placement of the multiple rows of sensors in close proximity to the inner surface of the tire.

Abstract: A tire operation service system includes a tire information monitoring device to monitor information on a tire and detect position information and unique identifying information, a tire operation server including a user information database stored with user information corresponding to the identifying information and a shop information database stored with position information on each shop and connected to the tire information monitoring device via a communication network, and a shop terminal and a user terminal connected to the tire operation server via a communication network, wherein the tire operation server includes a user information extraction unit, a nearby shop extraction unit, a shop-with-handling-ability extraction unit, and a shop information transmission unit.

Abstract: A wheel-force dynamometer (1) for measuring, via force sensors (6), force and torque that act upon a vehicle tire (2a) and a vehicle wheel (2). The vehicle wheel (2) is mounted to rotate by way of a wheel axle. The wheel-force dynamometer (1) is characterized in that the wheel axle is in the form of a rotor (3) which is hydrostatically mounted, axially fixed and able to rotate in the circumferential direction, in a rigid and positionally fixed housing (5).

Abstract: The present invention relates to a device (10) for checking a tyre (200), the device (10) comprising: a detection system (104) comprising a camera (105) having an optical plane (107) passing through the camera (105) and defining a focal plane (121); a first light source (110), a second light source (108) and a third light source (109) adapted for emitting a first light radiation, a second light radiation and a third light radiation, respectively to illuminate a surface portion of said tyre at or close to said focal plane (121), said second light source (108) and said third light source (109) being arranged at opposite sides with respect to said optical plane (107); where said first light source (110) is fixed with respect to said detection system (104) and said second light source (108) and third light source (109) are adapted to be movable from a first inactive configuration where they are controlled to not emit said second light radiation and third light radiation and wherein the distance (d2, d3) of said s

Abstract: In order to provide a method and a device capable of precisely estimating a load acting on a tire with less sensors, a load estimation device 10 for estimating the load acting on the tire is provided with: an acceleration sensor 11; an acceleration waveform detection means 13 that detects an acceleration waveform in a tire radial direction on the basis of an output of the acceleration sensor 11; a differential acceleration waveform computing means 14 that differentiates the acceleration waveform to obtain a differential acceleration waveform; a peak position detection means 15 that detects a position of a peak on a leading edge side and a position of a peak on a trailing edge side appearing in the differential acceleration waveform; a ground contact time ratio calculation means 16 that calculates a ground contact time and a rotation time on the basis of the peak positions and calculates a ground contact time ratio, which is a ratio between the calculated ground contact time and the rotation time; and a load e

Abstract: A tire inflation system for a work vehicle includes a controller with a memory and a processor, where the controller is configured to perform an iterative process until a stopping condition is reached. The iterative process includes receiving a tire pressure sensor signal indicative of a tire pressure a one tire, receiving a draft load sensor signal indicative of a draft load on the work vehicle, determining a draft load difference between the draft load and a maximum draft load, and outputting a target tire pressure output signal indicative of instructions to adjust the tire pressure of the tire in response to determining that the draft load difference is greater than or equal to a first threshold value.

Abstract: A tire pressure detector disposed at a wheel, wherein the wheel includes a rim and a tire mounted around the rim, with a pressure space formed between the tire and the rim. The rim includes an air tap connected with the pressure space. The tire pressure detector includes a main body movably disposed in the pressure space and provided with a housing space, and a detection module disposed in the housing space. The detection module further includes a sensing unit for sensing the air pressure in the pressure space and producing a pressure signal. A central processing unit of the detection module receives the pressure signal and wirelessly transmits the pressure signal through the wireless transmission unit. Therefore, vibration and waving issue due to imbalance weight is avoided, thus balancing the wheel.

Abstract: The present tire management method includes detecting a temperature at predetermined intervals inside a tire air chamber, converting the temperature detected at predetermined intervals inside the tire air chamber into a first multiplication value of load times speed or a second multiplication value of the square of load times speed, and calculating an accumulation value by accumulating the first or second multiplication value for a predetermined period. The present tire management apparatus includes a temperature detector that detects a temperature at predetermined intervals inside a tire air chamber, a converter that converts the temperature detected by the temperature detector at predetermined intervals inside the tire air chamber into a first multiplication value of load times speed or a second multiplication value of the square of load times speed, and an accumulator that calculates an accumulation value by accumulating the first or second multiplication value for a predetermined period.

Abstract: A method for planning and adapting a recommended travel route to a route destination for a vehicle having various subsystems includes identifying the route destination and receiving vehicle health management (VHM)/state of health (SOH) information for each subsystem. The vehicle with a controller programmed to execute the method is also disclosed. The method includes calculating route characteristics of candidate travel routes to the destination using the VHM information and determining, from among the candidate travel routes, travel routes for which the characteristics meet a respective threshold requirement. Thereafter, the controller executes a control action by displaying a candidate route meeting the threshold requirements. An occupant is prompted to revise the mission requirements when no candidate route exists. A default route to a designated parking location or repair depot may be displayed when none of the candidate routes meet the threshold requirements.

Abstract: A protruding portion is provided on a molded resin portion of a tire mount sensor, and the longitudinal direction of the protruding portion is aligned with the longitudinal direction of an antenna. Further, the longitudinal direction of the antenna is set at a predetermined angle with respect to the acceleration detection direction of the G sensor. For example, with a predetermined angle of 0°, the longitudinal direction of the antenna may be matched with the acceleration detection direction of the G sensor.

Abstract: A tire testing apparatus includes a tire supporting structure, a force applying device, a force measuring device and a controller. The tire supporting structure is configured to retain a tire. The force applying device is attached to the tire supporting structure and is configured to selectively apply a static force to the tire with the tire retained by the tire supporting structure. The force measuring device is attached to the tire supporting structure and is configured to measure the static force applied to the tire applied by the force applying device. The controller is electronically connected to the force applying device and the force measuring device. The controller is configured to receive force measurements from the force measuring device and selectively operate the force applying device to apply a predetermined level of static force to the tire for a predetermined period of time.

Abstract: A system is provided for assessing a condition of a tire. The system includes first and second individual modules, a data transmission gateway, and a collaboration device. The first and second individual modules are for assessing the condition of the tire. Each of the first and second individual modules includes a housing, which is structured to be placed on a ground surface, and a data transmitter. The housing includes at least one detector arranged to enable a parameter of the tire to be assessed as the tire passes over the housing. The data transmission gateway is structured to transmit data between the first and second individual modules and a remote database. The collaboration device is structured to enable data from the first individual module to be used collaboratively with data from the second individual module.

Abstract: A decal marker used with a marking station interchangeably carries a decal tape and a marking tape and transfers a decal from the decal tape to a surface to be marked. A marking assembly frame and at least one marker carried by the marking assembly frame which carries the decal tape or the marking tape are included. A tape sensor assembly is carried by the at least one marker and detects an edge of the decal so that the at least one marker properly positions the decal for transfer to the surface.

Abstract: A positioning system has an initiator device configured for emitting a high-speed wireless signal, at least one reference device configured for receiving the high-speed wireless signal and emitting a low-speed wireless signal after receiving the high-speed wireless signal, at least one target device each having one or more components for receiving the low-speed wireless signals, and at least one engine configured for determining the position of each of the at-least-one target device by calculating the distance between the target device and each of the at-least-one reference device based on at least the times-of-arrival of the low-speed wireless signals, each time-of-arrival being the time that the corresponding low-speed wireless signal being received by the target device, and determining the position of the target device based on the calculated distances.

Abstract: An apparatus 1 for measuring a diametrical stiffness of a tread ring 100 for an airless tire 101 comprises: a device 2 for supporting the tread ring, a device 3 for applying a constant load F to the supported tread ring across the diameter of the tread ring, and a device 4 for measuring the amount of deflection of the tread ring across the above-said diameter caused by the applied load F.

Abstract: A method, system and computer program product for calculating highway and airport pavement deflections. A pavement monitoring system includes a tractor and a semi-trailer, where a rigid horizontal beam is suspended under the semi-trailer. Various sensing elements are attached to the rigid beam, such as laser scanning sensors configured to measure a distance from the laser scanning sensors to the same point on the pavement at two different times, a gyrometer configured to estimate a raw pitch rate, an inertial measurement unit configured to estimate an orientation of the beam and accelerometers configured to measure an acceleration at a same level as corresponding laser scanning sensors. By utilizing these sensing elements, a more accurate pavement deflection is estimated by not relying on indirect measurements. Furthermore, the tractor and semi-trailer of the pavement monitoring system may travel at the velocity of traffic.

Abstract: In order to detect a road surface condition, a road surface condition estimation device extracts a detection signal of a portion that detects vibration in a tire tangential direction in a vibration detection and power generation unit which is in a ground contact section, for example, a vibration power generation element. In this case, it is identified that the vibration detection and power generation unit is in the ground contact section, based on whether a centrifugal force acting on the vibration detection and power generation unit is generated, or not, and it is identified that a time when no centrifugal force is generated is in the ground contact section. As a result, even if a pulse level of an output voltage of the vibration detection generation unit changes according to a traveling speed of the vehicle, the ground contact section can be accurately identified.

Abstract: The condition of a tyre (5) on a wheel (2) is assessed while the wheel (2) is mounted on a vehicle (1) and while the vehicle (1) is moving. As the vehicle (1) moves, the tyre (5) rotates and moves longitudinally along a path of movement. An imaging device (3, 4) captures images of a plurality of different portions (7) of the periphery of the tyre (5), which has tread portions (10) separated by tread gaps (11), whilst the tyre (5) revolves. While the images are being captured, longitudinally spaced flash units (F1, F2, F3, F4) are activated to illuminate portions (7) of the periphery of the tyre (5). The flash units (F1, F2, F3, F4) are positioned to one side of the path of movement of the tyre (5) and direct light at an acute angle to the path of movement of the tyre (5) so that the light causes shadows to be cast in the tread gaps (11) between tread portions (10).

Abstract: A tire wear state estimation system includes at least one sensor disposed on a vehicle and a CAN bus system. The sensor measures selected parameters associated with the vehicle and communicates data for the selected parameters through the CAN bus system, including a first set of data, a second set of data and a third set of data. A rolling radius estimator receives the first set of data and estimates a rolling radius for the tire. An acceleration slip estimator receives the second set of data and the estimated rolling radius to estimate the slip of the tire during acceleration. A braking slip estimator receives the third set of data and the estimated rolling radius to estimate the slip of the tire during braking. A tire slip analyzer correlates the acceleration slip estimation and the braking slip estimation and generates an estimated wear state of the tire.

Abstract: A balancing device, a uniformity device and an apparatus including the balancing device and the uniformity device are disclosed. Each of the balancing device and the uniformity device includes at least one multi-axis transducer. Methods are also disclosed.

Abstract: A method of monitoring the pressure of a tire of an aircraft, the method including: taking two or more pressure readings from the tire at different times; calculating an estimated deflation rate based on the pressure readings; and calculating a time for the tire to deflate to a reference pressure level based on the estimated deflation rate. Two or more temperature readings are each associated with one of the pressure readings, and the estimated deflation rate is calculated by normalising each pressure reading based on its associated temperature reading and a common reference temperature to obtain a temperature-normalised pressure reading, and calculating the estimated deflation rate based on the temperature-normalised pressure readings. The estimated deflation rate is compared with a threshold, and a warning provided if the estimated deflation rate exceeds the threshold.

Abstract: In a tire removal processing, a clamping step and a tire removing step are executed. In the clamping step, a tire is clamped by an upper support and a lower support by bringing the lower support into contact with a lower side wall of the tire in a state where a lower rim is fitted in the tire and the upper support is in contact with an upper side wall of the tire. In the tire removing step, the tire is detached from the lower rim by relatively moving the lower rim vertically downward with respect to a lower support while the clamping step is maintained.

Abstract: An in-line laser profilometry inspection system broadly comprises a first laser, a first sensor, a second laser, a second sensor, a camera, a calibration standard, and an interface. The lasers transmit first and second light signals to a stringer charge or other part. The sensors detect the light signals reflecting off first and second edge walls of the part. The camera obtains a top-down image of the part. The calibration standard provides structure for calibrating the inspection system via the lasers and sensors. The interface allows a user to oversee part inspection. Data generated from the reflected light signals corresponding to a part profile may be analyzed based on at least first and second derivatives of the part profile such that the part is inspected during a cutting procedure.

Abstract: A tire-wear detection system for an automated vehicle includes a steering-angle-sensor, a vehicle-path-detector, and a controller. The steering-angle-sensor indicates a steering-angle of a host-vehicle. The vehicle-path-detector indicates a turning-radius of the host-vehicle. The controller is in communication with the steering-angle-sensor and the vehicle-path-detector. The controller determines a wear-status of a tire of the host-vehicle based on the turning-radius and the steering-angle.

Abstract: The present invention relates to a device for the analysis and detection of geometrical features or parameters of an object, which device includes: at least one enlightening means designed to lighten a portion of an object (T); at least two cameras, each designed to detect an image of a portion of the object (T) lightened by the enlightening means; an electronic unit (EU) designed to interpolate the images (OI) of the object (T) received from the cameras.

Abstract: The present invention provides a display status adjustment method, a display status adjustment device and a display device, which belongs to the field of display technology and can solve the problem that the existing display status adjustment method for a display is too simple and has low accuracy. The display status adjustment method of the present invention comprises steps of: collecting information parameter of an environment where a display is located; inputting the collected information parameter to a pre-built wavelet neural network model for analysis, and obtaining a display status in which the display is to display; and adjusting display status of the display based on analysis result.

Abstract: Tire sensor devices, tires equipped with such devices and corresponding methods are disclosed, where a tire sensor chip is provided on a flexible sheet material.

Abstract: Examples of systems and methods for locating movable objects such as carts (e.g., shopping carts) are disclosed. Such systems and methods can use dead reckoning techniques to estimate the current position of the movable object. Various techniques for improving accuracy of position estimates are disclosed, including compensation for various error sources involving the use of magnetometer and accelerometer, and using vibration analysis to derive wheel rotation rates. Also disclosed are various techniques to utilize characteristics of the operating environment in conjunction with or in lieu of dead reckoning techniques, including characteristic of environment such as ground texture, availability of signals from radio frequency (RF) transmitters including precision fix sources. Such systems and methods can be applied in both indoor and outdoor settings and in retail or warehouse settings.

Abstract: In a method for determining a road surface condition, the speed of calculation is improved by applying an appropriate path limitation. To further improve the accuracy of determination, a time-series waveform of tire vibration detected by an acceleration sensor is windowed at time width T by a windowing means, and time-series waveforms of tire vibration in the respective time windows are extracted before feature vectors Xi of the respective time windows are calculated. Then kernel functions KA (X, Y) are calculated from the feature vectors Xi for the respective time windows and road surface feature vectors Yi, which are feature vectors for the respective time windows calculated from time-series waveforms of tire vibration having been determined in advance for distinctive road surface conditions.

Abstract: A tire pressure monitoring device for a wheeled vehicle that is capable of detecting vehicle motion from the output of a pressure sensor. The device determines from the output signal an indication of the power of the signal, for example the variance of the signal, and detects if the vehicle is stationary or in motion depending on the determined indication of power. The device may determine that the vehicle is in motion if the determined indication of power exceeds a threshold value.

Abstract: A small six-dimensional force and torque sensor, includes a cylindrical housing, a base disposed on the inner wall of the cylindrical housing, eight first elastic beams of the same size and structure for connecting the base, a central boss disposed at the center of the cylindrical housing, four second elastic beams of the same size and structure for connecting the central boss with the first elastic beams. The four second elastic beams are arranged in a cross shape. The eight first elastic beams and the four second elastic beams are respectively attached with a plurality of strain gauges, thus forming full bridge circuits. The sensor is simple in structure, small in size, can realize self-decoupling of the structure in six directions, and is suitable to be used in combination with current industrial systems.

Abstract: A method of testing pavement includes repeatedly simulating wheel loading on the pavement by repeatedly applying a plurality of discreet forces with a downwards component, in series and one after the other, to an upper surface of a test strip of the pavement thereby to simulate a load exerted by a travelling wheel and hence subjecting the pavement to accelerated testing. The discreet forces are provided by repeatedly actuating a series of actuators, one after the other, each to exert a force with a downwards component to the upper surface of the test strip of pavement, or to a portion thereof.

Abstract: A system and method configured to measure applied force and pressure on a load cell. The system includes an axial force pressure transducer having a hollow cross section having at least two strain sensitive regions, and a plurality of strain sensors connected to the at least two strain sensitive regions, wherein applied force and pressure is calculated based on strain measurements using mathematical formulae. A method of calibration of the axial force pressure transducer uses known applied force and pressure measurements to calculate a calibration matrix reflecting the strain sensitivities of the at least two strain sensitive regions.

Abstract: A method and apparatus capable of estimating a tire wear amount even on snow-covered road surfaces accurately and reliably are provided. To that end, a differentiated acceleration waveform of a radial acceleration waveform of a tire is obtained, and an operation of calculating a leading-end differentiated peak value and a trailing-end differentiated peak value from the differentiated acceleration waveform is repeated a plurality of times. At the same time, a differentiated peak ratio, which is a ratio between the leading-end differentiated peak value and the trailing-end differentiated peak value, is calculated for each of the leading-end differentiated peak values and the trailing-end differentiated peak values obtained. Either one of the leading-end differentiated peak values and the trailing-end differentiated peak values, having a differentiated peak ratio within a lower limit range of 0.6 to 0.8 and an upper limit range of 1.0 to 1.

Abstract: A measuring apparatus to measure adhesive performance of a Pressure Sensitive tape or label, which includes an electric or pneumatic actuator that can be triggered manually or remotely to perform a rolling ball tack evaluation at different or extreme conditions to those standardized in an adhesives laboratory, by using a small laboratory oven or small weathering chamber to simulate those extreme conditions. Also, installing this apparatus inside of those chambers and triggering it remotely through the mentioned actuator installed in the apparatus.

Abstract: An abrasion inspection apparatus includes: a first imaging unit installed on a track along which a vehicle is traveling, a guide wheel installed on the vehicle, the first imaging unit imaging an inside of the track; a second imaging unit installed on the track in a vehicle traveling direction with respect to the first imaging unit and imaging the inside of the track; an image acquisition unit acquiring a first image of a boundary of the guide wheel captured by the first imaging unit on a first direction side in the vehicle traveling direction, and a second image of the boundary of the guide wheel captured by the second imaging unit at the same time on an opposite side to the first direction side; and a guide wheel detection unit detecting an abrasion situation of the guide wheel according to a position of a boundary indicated in the acquired images.

Abstract: A tire includes a plurality of tire components defining a plurality of layers. A radio frequency identification (RFID) tag is disposed between at least two of the plurality of layers. The RFID tag is in contact with each of the at least two layers and is configured to transmit a response signal in response to receiving a request signal. When no air is in a region surrounding the RFID tag, a first response signal is emitted from the tire at a first frequency and first power. However, when air is in the region surrounding the RFID tag, a second response signal is emitted from the tire at the first frequency and a second power different from the first power.

Abstract: An apparatus and a method for checking tires is described. The apparatus has a first check unit having an inlet for tires and a plurality of check tools. The apparatus has a second check unit having an outlet for the tires and a plurality of check tools. The apparatus has an overturning and transport device operatively interposed between the first check unit and the second check unit. The first check unit, the second check unit and the overturning and transport device define a check path configured to be traversed by each tire step by step. The first check unit and the second check unit have the same check tools configured for executing the same checks on respective axial halves of the tires.

Abstract: A method for detecting a defect on a surface of a tire includes automated steps of: calculating values of a gradient of a plurality of texture parameters from an image of the surface of the tire, determining an image of the gradient, and thresholding of the image of the gradient to obtain a thresholded image.

Abstract: A fastening device is configured to be used for fastening an object to a target device. The fastening device includes a holder part configured to hold the object, a fastening part configured to be bonded to the target device, a contact part allowing the fastening part to be located between the contact part and the holder part, and a connecting part for connecting the contact part with the fastening part while allowing the protruding length to be variable. The contact part protrudes toward the target device more than the fastening part by a protruding length, the contact part contacting the target device before the fastening part contacts the target device when being fastened to the target device. This fastening device improves workability.

Abstract: The present invention relates to an apparatus for monitoring a tire pressure. Provided is a tire pressure monitoring apparatus including: a radius analyzing unit which calculates a radius analysis value using a relative speed difference and an average speed calculated from wheel speeds of the wheels mounted on the vehicle; a regression equation calculating unit which calculates a first regression equation for the calculated radius analysis value and first driving information and a second regression equation for the calculated radius analysis value and second driving information; a mass calculating unit which calculates an additional mass of the vehicle; a calibration unit which corrects the calculated radius analysis value using a combination of the calculated first and second regression equations and the calculated additional mass; and a low pressure determining unit which determines a low pressure of a tire mounted on the vehicle using the corrected radius analysis value.

Abstract: A system includes a millimeter-wave radar sensor circuit configured to be fastened to a wheel having a tire, and a controller. The millimeter-wave radar sensor circuit is configured to transmit a radio-frequency (RF) signal towards a portion of an inner surface of the tire and receive a reflected signal from the tire. The controller is configured to process the reflected signal, determine a property value of the tire based on processing the reflected signal, and generate and transmit a first signal representative of the property value of the tire.

Abstract: A vehicle and method for controlling the same are provided to provide more reliable tire pressure information than the existing tire pressure detecting system using a method of calculating a wheel frequency once every predetermined reference vibration count. The vehicle includes a sensor unit that measures a wheel speed and a controller that divides a vibration count of wheel derived based on the wheel speed by a predetermined reference vibration count to calculate at least one frequency. The at least one frequency is analyzed to derive a state of pressure of a tire mounted on the wheel, and the tire pressure state to be output is adjusted to then be output.

Abstract: Method for determining structural parameters of a railway track having a sensor array, includes measuring vertical and/or lateral irregularities of the rail with the sensor array along the rail, thereby providing signals corresponding to geometrical irregularities at different distance from the wheel-load. A model is provided describing the rail's deflection shape, which is dependent on structural parameters of the rail and on the loads on the rail. The model is stored in a processor where geometrical irregularities are compared under different load influence for generating a measured deflection shape. At least one theoretical rail deflection shape is generated using the model by varying structural parameters and the load in the model. At least one of theoretical deflection shapes is compared with the measured deflection shape for each point of the rail, and the structural parameters of that theoretical deflection shape which best matches the measured deflection shape are determined.