531results about "Vehicle tyre testing" patented technology

The invention relates to the technical field of noise measurement systems, in particular to a noise measurement system for a new energy tire, which comprises a tire positioning and driving unit, a sensor unit, a data acquisition and synchronization unit, a data processing unit, a data analysis unit and a man-machine interaction and display unit, the tire positioning and driving unit simulates different loads, different speeds and different road conditions of a tire by using a rack type tire positioning device, and drives the tire to rotate by using a brushless mute motor, so that a high-speed rotating effect without introducing extra mechanical noise is realized; the sensor unit is arranged on the two sides of the tire and at the position close to the ground through an acoustic sensor free field type condenser microphone array, is fixed to the suspension support through an acceleration sensor and is used for collecting vibration signals; the running states of the tire under different loads, speeds and road conditions are accurately simulated, noise data of the tire under various actual working conditions are obtained, and the measurement result is closer to the real situation.

The invention provides an internal detection sensor and a tire inner cavity appearance detection system, and belongs to the field of industrial automatic visual detection. The internal inspection sensor comprises a laser emitting unit and an image collecting unit, and can project an annular laser beam with the covering angle not smaller than 340 degrees and collect an inner wall image. The system comprises the sensor, an industrial robot and a tire expander. The industrial robot sends the sensor to a tire internal channel opened by a tire expander; when the tire expander drives the tire to rotate, the static sensor can perform 360-degree panoramic image acquisition on the rotating inner wall.

Sensor modules mountable on a wheel are described with methods of use. A sensor module for a wheel includes a base module mountable to a rim. The sensor module further includes a first set of piezoelectric sensors coupled to the base module at a first side and a second set of piezoelectric sensors coupled to the base module at a second side. A method includes receiving a first force from a tire on a piezoelectric sensor mounted on a rim, the force resulting from an inflation of the tire and causing a first strain on the sensor. The method further includes receiving a second force on the sensor corresponding to a deformation of the tire due to surface contact, where the second force causes a second strain. The method also includes generating wheel data from electrical signals produced by the sensor; and transmitting the wheel data to a remote device.

The utility model discloses a wheel tire assembly drop impact test device, and belongs to the technical field of vehicle part tests. The device comprises a supporting structure, a lifting structure and a falling structure. The supporting structure is used for supporting the lifting structure and the falling structure; the lifting structure is used for driving the falling structure to move in the vertical direction and disconnecting the lifting structure and the falling structure under the condition that a falling signal is received, so that the falling structure falls down; the falling structure is used for connecting a wheel tire assembly to be tested and driving the wheel tire assembly to fall down. According to the device, the lifting and falling of the wheel tire assembly are realized through the lifting structure, and the test requirement of the reliability of the wheel tire assembly is met.

The invention relates to the technical field of tire manufacturing and detection, in particular to a tire appearance defect detection method and system based on a retrieval enhancement generation technology, and the method comprises the steps: collecting image data, and completing the preprocessing of the image data through an edge calculation end; the retrieval enhancement generation module is used for sequentially carrying out picture vectorization processing on the preprocessed data, carrying out vectorization retrieval in a historical defect vector library and then sending the data into a multi-modal large model through the Ethernet to complete data fusion and an image defect judgment result; and the retrieval enhancement generation module outputs a judgment result to the production management end and the edge calculation end, and the production management end archives the judgment result. Compared with the prior art, the detection automation and intelligence are realized, the detection accuracy and efficiency and the production line quality control capability are also remarkably improved, and the production efficiency is improved. The method is suitable for defect identification and quality evaluation tasks of tire appearance detection.

The invention discloses a self-repairing tire after-puncture healing ability test display device, which comprises a test board, a pressurization cover body, an auxiliary pressing assembly, a centering support assembly and a puncture assembly, and is characterized in that the pressurization cover body is arranged above the test board in a lifting manner, the pressurization cover body is connected with a pressurization assembly, the auxiliary pressing assembly is connected with the pressurization cover body, and the centering support assembly is connected with the puncture assembly; the auxiliary pressing assembly comprises pressing rollers symmetrically distributed on the two sides of the lower portion of the pressurizing cover body, the auxiliary pressing assembly is used for being matched with descending of the pressurizing cover body to press and flatten the inner wall of the to-be-detected tire so that the pressurizing cover body can be attached to the inner wall of the to-be-detected tire to form a sealed space, and the centering supporting assembly is arranged below the pressurizing cover body. The puncture assembly is arranged below the test board and comprises a puncture needle, a puncture opening is formed in the center of the surface of the test board, and the puncture needle is arranged at the puncture opening in a liftable mode. The invention belongs to the technical field of tire performance detection, and particularly relates to a device for testing and displaying the healing capacity of a self-repairing tire after puncturing and rolling.

A tire inspection assembly includes a spindle and a clamping mechanism. The tire inspection assembly generally functions to mount a tire and allow for the inflation thereof to perform a test on the mounted tire. The tire inspection apparatus generally offers more robust centering, higher stiffness versus loads, and greater elimination of variable clearances that can otherwise impede repeatability.

Provided with a sensor unit (SU); a strain signal acquisition unit (201) configured to acquire a strain signal; an index calculation unit (202) configured to calculate an index of deformation rate; a relation value calculation unit (203) configured to calculate in advance a relation value between the index of the deformation rate and a wear degree of the tire; a wear condition estimation unit (204) configured to estimate the wear degree of the tire by comparing the relation value with the index of the deformation rate; and a relation value prediction unit (205) configured to predict a relation value of a tire of another size, and the relation value prediction unit (205) uses data related to at least a thickness of a tire tread portion, which is stored in advance in a data storage unit (206), when predicting the relation value of the tire of another size.

To estimate the depth of a tire groove easily in comparison with a case where information on a vehicle is required.SOLUTION: An estimation device includes: an acquisition part which acquires an image of a tread of a tire attached to a vehicle; and an estimation part which estimates the depth of a tire groove on the basis of the image of the tread of the tire.SELECTED DRAWING: Figure 4

A tire inspection assembly includes a spindle and a clamping mechanism. The tire inspection assembly generally functions to mount a tire and allow for the inflation thereof to perform a test on the mounted tire. The tire inspection apparatus generally offers more robust centering, higher stiffness versus loads, and greater elimination of variable clearances that can otherwise impede repeatability.

To estimate a state of a rotor by a simple configuration.SOLUTION: An estimation system comprises: a first sensor that can be arranged between a wheel and a tyre mounted to the wheel, and outputs a first sensor signal corresponding to pressing force by the wheel and tyre; and a processor that estimates a state of a rotor including the wheel and tyre on the basis of the first sensor signal. The processor is configured to generate a first section signal by dividing the first sensor signal in a specific section, and estimate the state of the rotor on the basis of the first section signal.SELECTED DRAWING: Figure 3

The sound absorption rate calculation unit that calculates the sound absorption rate based on the design information of the sound absorption structure, the modeling unit that generates a finite element model based on the design information of the tire, and the sound absorption rate setting unit that sets a sound absorption boundary having a sound absorption rate in the finite element model based on the arrangement information of the sound absorption structure with respect to the tire, and a sound pressure analysis unit that analyzes the sound pressure distribution in the internal space of the tire based on the finite element model in which the sound absorption boundary is set.

A method of detecting defects on a surface of a buffed casing of a pneumatic tyre The tyre is mounted on a rotation device which comprises an angular encoder for controlling the angular position of the tyre. The method comprises stepwise rotating the tyre, and capturing, using a camera having a single line of pixels, a one-dimensional array of pixel intensity values for a corresponding imaging portion of an equatorial surface of the casing for every halt in the stepwise rotation. The method further comprises associating each one-dimensional array of pixel intensity values with a corresponding angular position of tyre, combining the plurality of one-dimensional arrays to form two-dimensional image data of the equatorial surface of the casing based on the associated angular position of the tyre, and processing the two- dimensional image data of the equatorial surface of the casing to detect defects.

A wear estimation system (10) and method for a tire (12) supporting a vehicle (14) is disclosed. The system (10) comprises a processor being in electronic communication with a CAN bus system of the vehicle and means for determining a total frictional energy of the tire. The processor is configured to: receive the total frictional energy of the tire; divide the total frictional energy into a longitudinal frictional energy estimation and a lateral frictional energy estimation with a separator; receive the longitudinal frictional energy estimation in a longitudinal acceleration classifier; determine at least one of a low, medium, and high longitudinal frictional energy estimate with the longitudinal acceleration classifier; receive the lateral frictional energy estimation in a lateral acceleration classifier; determine at least one of a low, medium, and high lateral frictional energy estimate with the lateral acceleration classifier; generate an output notification including the at least one of the low, medium, and high longitudinal frictional energy estimate and the at least one of the low, medium, and high lateral frictional energy estimate; and determine at least one of an estimated wear rate of the tire and an estimated wear state of the tire from the output notification.

This application discloses an indoor tire wear performance testing method, apparatus, storage medium, and electronic device. The method includes: acquiring a vehicle parameter set of the vehicle to be tested and a first test dataset on a target outdoor wear route; dividing the first test dataset into multiple sets of second test datasets, and calculating a first average test data for each set of second test datasets; sequentially inputting the calculated multiple sets of first average test data into a steady-state rotation equation set, outputting multiple sets of steady-state parameter sets for the vehicle to be tested, wherein the steady-state rotation equation set consists of the formula coefficient expression of the magic formula and a dynamic equation set; and conducting an indoor tire wear performance test on the target tire of the vehicle to be tested based on the multiple sets of steady-state parameter sets. This application solves the technical problem that related indoor tire wear performance testing methods require additional specialized equipment to collect six-component force test data of the tire, resulting in high testing costs and low testing efficiency.

To provide a testing machine, and a method of supporting a test specimen for rotation.SOLUTION: A testing machine for rotating test specimens comprises: a frame; and a roadway assembly. The roadway assembly includes an endless belt that provides a surface for engaging with the test specimen, is supported by rollers, and rolls on the roller. An endless support member supported by the frame is disposed between the rollers, and engages with the endless belt from below. The endless support member moves with, or is synchronized with the endless belt so as to have the same velocity as the endless belt. The endless support member provides a flat reaction structure for a load from the test specimen placed on the endless belt, and is of size corresponding to that needed by a contact patch of the test specimen on the endless belt. Since the endless support member moves at the same velocity as the endless belt, no forces are generated between the endless support member and the endless belt.SELECTED DRAWING: Figure 1

Presented and described is a device (1) for determining a conductivity of a tyre (15). The device (1) comprises the following: a frame, a support device (3), which is mounted on the frame and has a support surface (9) which extends in a support plane and on which a tyre (15) can rest, a first measuring device (5), which is mounted on the frame and which has an electrically conductive first portion, and a second measuring device (7), which is mounted on the frame and which has an electrically conductive second portion, the device (1) being adapted such that, if a tyre (15) which has a radially outwardly running tread surface (17) and a radially inwardly running bead (19) rests on the support surface (9) by a first side facing the support plane, the first measuring device (5) can be moved from a second side of the tyre (15), which is opposite the first side of the tyre (15), to the bead (19), such that, in a test configuration, the first portion and the bead (19) are in contact and the second portion and the tread surface (17) are in contact.

The invention relates to a method for generating processing data, wherein the processing data are provided for determining a vehicle tire parameter of at least one vehicle tire (1) of a vehicle (2), comprising the following steps: - Providing a vehicle (2) wherein the vehicle (2) has at least one vehicle tire (1); - Providing an evaluation device (3) wherein the evaluation device (3) is designed to determine the vehicle maturity parameter of the at least one vehicle tire (1) depending on a driving distance information and a vehicle operating information; - Determining the distance traveled by the vehicle (2); - Dividing the distance traveled by the vehicle (2) into sub-distances using the evaluation device (3); - Determining the route information for at least one segment of the segments; - Determining the vehicle operating information for at least one section of the route. - Generating processing data depending on the route information for at least one sub-section of the sub-sections and the vehicle operating information for at least one sub-section of the sub-sections, wherein the processing data are specifically intended to allow the vehicle tire parameters to be determined depending on the processing data.

The invention relates to a measuring clamp (10) for measuring the conductivity properties of vehicle tires, comprising: i) a main part (12), ii) a first clamp element (14) which is connected to the main part (12), said first clamp element (14) comprising an electrically conductive first contacting element (16), iii) a second clamp element (18) which is connected to the main part (12) and is arranged at a distance to the first clamp element (14), said second clamp element (18) comprising an electrically conductive second contacting element (20), and iv) a measuring unit (22) which is connected to the first contacting element (16) and the second contacting element (20) for measuring the connectivity properties, wherein the first contacting element (16) is arranged on the first clamp element (14) face facing in the direction of the second clamp element (18), and the second contacting element (20) is arranged on the second clamp element (18) face facing in the direction of the first clamp element (14). The measuring clamp (10) is designed such that the distance between the first clamp element (14) and the second clamp element (18) can be modified in a reversible and nondestructive manner, and the first contacting element (16) comprises a plurality of electrically conductive first conductor elements which extend from the surface of the first clamp element (14).

The invention belongs to the technical field of tire performance testing, and discloses a sample preparation method for keeping a tire shoulder groove complete in a tire deflection fatigue test, and the method comprises the following specific steps: 1, obtaining the size of a groove structure, placing a to-be-detected tire on a laser scanner workbench, and setting scanning parameters to identify a tire shoulder pattern block and the groove structure; the actual size of a tire shoulder groove is accurately obtained through laser scanning, a three-dimensional image model is generated, and the most critical and most likely-to-fail original groove geometrical shape of a tire shoulder is completely reserved in combination with a vertical directional cutting technology; meanwhile, the rubber material at the bottom of the groove is not subjected to any secondary machining, so that the original vulcanization state, crosslinking density and internal stress state are kept, and the material performance of the manufactured tire is truly reflected; on the basis, the fatigue crack can be generated and expanded at a real position of stress concentration in an actual design structure, and the form and the rate of the fatigue crack are more fit with a failure mode in actual use.

To provide a sensor assembly and a system mounted on a tire.SOLUTION: A housing configured to hold an electrical sensor device to protect the sensor device, wherein the housing can include indicia associated with some aspects of the sensor assembly. The electrical sensor device comprises electrical components useful for monitoring and transmitting desired data related to operating parameters / conditions of the dynamic article to which the sensor assembly is attached, wherein the data is wirelessly transmitted from the electrical sensor device. The housing is removably attached using a retaining member, which is also attached to the dynamic article or an element connected thereto. A receiver external to the dynamic article determines operating parameters and / or conditions, if the dynamic article is a vehicle tire, an outer diameter, tread depth, pressure, radial load, changes in camber and / or toe alignment of the vehicle, and tire / vehicle position.SELECTED DRAWING: Figure 1

The present application relates to the technical field of tire rubber performance testing, and particularly relates to a method and system for testing low-temperature rolling resistance of tires by using RSA tensile mode deformation scanning. The method comprises pre-cycling, constant temperature and humidity control, peak automatic positioning, cross-validation and error checking, and can predict R 2 up to 0.97 or more, and the error of the sampling inspection is not greater than 5%. The system is composed of an RSA testing subsystem, an environment and clamp assembly, a data processing module, a model engine and a database, and can significantly shorten the testing period and reduce the cost without preparing a whole tire.

The application discloses a kind of measurement method and system of tire belt steel wire angle, including characteristic mark step: in the A surface and B surface of tire section, respectively mark tread pattern design width point, and confirm corresponding endpoint by on-off detection, mark as steel wire corresponding point;Image acquisition step: respectively to the image acquisition of tire section A surface and B surface of completion mark, obtain image;Image registration step: based on tread pattern design width point, A surface image and B surface image are registered in space, coordinate extraction step: from the A surface image and B surface image after registration, based on the mark of steel wire corresponding point, extract position coordinate;Angle calculation step: according to position coordinate, the angle of this steel wire is calculated.The application extracts steel wire coordinate by collecting section image and carrying out image alignment based on tread pattern design width point to calculate angle, realizes non-contact high-precision measurement, significantly improves measurement efficiency and data traceability.

This application relates to a tire puncture performance testing device, which includes a frame, a puncture needle, and a pressure applying mechanism, with a pressure sensor controlling the pressure application; it also includes a support mechanism for supporting the puncture needle; and a reset mechanism for resetting the support mechanism; the support mechanism includes a support frame, mounted on the frame and used for the puncture needle to pass through; a pressure plate, mounted on the puncture needle; and a phase change component, which supports the pressure plate by changing from a liquid to a solid state; when the phase change component is in a liquid state, the pressure plate moves with the puncture needle, and when the phase change is solid, it supports the pressure plate. This application supports the puncture needle through the phase change of the magnetorheological fluid inside the annular bladder to prevent damage to the puncture needle, and simultaneously controls the movement of the extrusion plate through the phase change of the shape memory alloy ring to achieve the effect of flattening the annular bladder.

The tire uniformity testing machine section width detection device provided by the application, when it is necessary to adjust to the test section width, the stop swing arm limits the rotation of the combined assembly of the stop chuck, the width adjusting nut, the lower flange and the lower rim, the laser displacement sensor feeds back the position of the stop chuck in real time, the control device controls the lower spindle driving mechanism to drive the rotation of the lower spindle, the lower spindle drives the rotation of the outer threaded sleeve, the relative rotation of the threaded pair between the outer threaded sleeve and the width adjusting nut occurs, at this time, the combined assembly of the stop chuck, the width adjusting nut, the lower flange and the lower rim axially displaces along the outer threaded sleeve, the position of the lower rim changes, and since the position of the upper rim is fixed, the distance between the upper rim and the lower rim changes, thereby achieving section width adjustment. Since the laser displacement sensor is introduced, the uniformity testing machine does not need to be adjusted to the zero section width position, thereby improving the section width adjustment efficiency and simplifying the section width adjustment process.

A vehicle component balancing apparatus and system for on vehicle balancing of one or more of a tire, a wheel, bearings, brake components, and vehicle components that impart vibrations to the vehicle.

An inspection device includes a shape recognition means for recognizing a shape of a tire from one or more images of the tire and detecting a defect candidate of the tire; and a tire information recognition means for extracting a character from the one or more images of the tire and recognizing tire information including a model number of the tire; a reference dimension setting means for acquiring information about a specification dimension of the tire based on the recognized model number of the tire; a dimension calculation means for calculating a dimension of the defect candidate based on the specification dimension of the tire and the shape of the tire; and a determination means for determining presence or absence of a defect of the tire based on the dimension of the defect candidate.

A vehicle component balancing robot apparatus, system and method for on vehicle balancing of one or more of a tire, a wheel, bearings, brake components, and vehicle components that impart vibrations to the vehicle. The apparatus includes a frame arranged so as to connect with the vehicle. A robot of the apparatus moves relative to the frame, and is configured so that the move, relative to the frame, resolves a predetermined location of a tire-wheel assembly relative to a reference frame of the robot. The robot has at least one end effector arranged to interface the tire-wheel assembly and the robot moves the at least one end effector to other predetermined locations on a wheel rim of the tire-wheel assembly, determined based on resolution of the predetermined location of the tire-wheel assembly relative to the reference frame.

This application provides a tire tread examining device, including: a case component, which includes a detection case and a handle case, the handle case being able to drive the detection case to move, and the detection case and the handle case being spaced apart; a positioning component, including a tire abutting plate disposed on an end of the detection case and perpendicular to a lengthwise direction of the detection case; a detection assembly including a detection element located on an end of the detection case away from the tire abutting plate.

The invention relates to the technical field of vehicle tire testing, and discloses a cyclic working condition construction method, device and equipment for a vehicle tire wear test, and the method comprises the steps: obtaining the original driving data of an actual road test; dividing kinematics fragments by taking a complete start-stop event of the vehicle as a boundary, and extracting motion features of each kinematics fragment; grouping the kinematics fragments and the motion features thereof according to the vehicle speed; performing clustering analysis on each group; screening a plurality of kinematics fragments closest to the clustering center in each class cluster, and constructing a typical kinematics fragment library; selecting candidate kinematics fragments from the typical kinematics fragment library according to a preset cyclic working condition total duration, and splicing the candidate kinematics fragments; and performing optimization selection on the candidate kinematics fragments by taking the condition that the relative deviation between the splicing working condition and the motion characteristics of the original driving data is smaller than a set threshold value as a target to obtain a cyclic working condition. The cyclic working condition constructed by the invention can accurately simulate tire wear under the actual driving condition, and the test accuracy is improved.