332results about "Vehicle wheel testing" patented technology

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.

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.

The invention relates to the technical field of automobile part detection, in particular to a quality detection device and method for the surface of an automobile hub, and the device comprises a conveying unit, an outer surface regional detection unit, an overturning clamping unit and an inner surface detection unit. The conveying unit is sequentially connected with the outer surface sub-area detection unit, the overturning clamping unit and the inner surface detection unit and is used for sequentially conveying hubs to all detection areas; the outer surface regional detection unit comprises an aluminum profile support, a first linear guide rail and a third linear guide rail, the overturning clamping unit comprises a second linear guide rail, a third servo motor and a first sliding block, and the inner surface detection unit comprises a positioning assembly and a camera support. The conveying unit is sequentially connected with the outer surface regional detection unit, the overturning clamping unit and the inner surface detection unit, full-process automatic detection of the hub from the outer surface to the inner surface is achieved, and the detection efficiency is remarkably improved.

The utility model discloses an impact testing machine for hub detection, which comprises a workbench and an impact assembly, a support is fixedly mounted at the top of the workbench, the impact assembly comprises a magnetic attraction seat, a guide plate, a guide rod, a mounting plate, a bidirectional screw rod, a fixing rod, a knob, an impact hammer and a fixing plate, and an electric telescopic rod is mounted in the middle of the top of the support. The bottom of the electric telescopic rod penetrates through the support and is fixedly provided with a connecting plate. The two-way lead screw is driven to rotate by screwing the rotary knob clockwise and anticlockwise, then the fixing rods on the two sides can be driven to move towards the outer side at the same time, fixing of the fixing plate is lost, the impact hammer can be conveniently taken down, the impact hammer can be conveniently replaced, and when the impact hammer is installed, the fixing plate is placed in the groove body, so that the impact hammer is installed conveniently. The fixing holes are aligned with the fixing rods, then the knob can be screwed anticlockwise, the fixing rods are driven to move towards the inner side at the same time, and the impact hammer is installed.

Systems and methods for predicting anomalies in a wheel system of a semi-trailer truck. One example system includes: a vibration sensor positioned to sense vibrations of the wheel system and an electronic processor communicatively coupled to the vibration sensor. The electronic processor is configured to determine a velocity profile of the semi-trailer truck; obtain a vibration measurement; determine, from the vibration measurement, a classified vibration level; determine whether the classified vibration level is indicative of an anomaly; identify, based on whether the classified vibration level is indicative of the anomaly and both the velocity profile and a reference classified vibration level, an anomaly existing within either or both of the semi-trailer truck wheel system or the road; and perform a mitigation action in response to identifying the anomaly.

The invention provides a calibration assembly and a four-wheel positioning calibration device.The calibration assembly comprises a calibration base body and a plurality of calibration assemblies, the calibration base body defines at least two calibration directions parallel to the calibration base body, the calibration assemblies are arranged on the calibration base body, and projections of the calibration assemblies in the calibration directions do not coincide with one another; and the heights of the plurality of calibration assemblies on the calibration seat body are different. According to the technical scheme, the calibration seat body is provided with the plurality of calibration assemblies of which the projections in the calibration direction do not coincide, so that the four-wheel positioning measurement device can obtain the images of the plurality of calibration assemblies in the calibration direction, and the images of the plurality of calibration assemblies can provide more coordinate values for mutual calibration; therefore, the accuracy of the calibration result is improved, and the accuracy of the tire positioning information detected by the four-wheel positioning measurement device is further improved.

Systems and methods for predicting wheel system anomalies of a semitrailer truck. One example system includes a vibration sensor positioned to sense vibration of a wheel system and an electronic processor communicatively coupled to the vibration sensor. The electronic processor is configured to determine a speed profile of the semitrailer truck; obtaining a vibration measurement; determining classified vibration levels from the vibration measurements; determining whether the classified vibration level indicates an anomaly; identifying an anomaly present in one or both of a wheel system or a road of the semitrailer truck based on whether the classified vibration level is indicative of an anomaly and both the speed profile and the reference classified vibration level; and perform a mitigation action in response to identifying the anomaly.

The invention relates to the technical field of vehicle fault detection, in particular to a hub runout detection method and system based on multi-modal data fusion, and the method comprises the following steps: 1, collecting hub data in real time through a vibration sensor, a vehicle speed sensor, a tire pressure sensor and a steering angle sensor; step 2, carrying out synchronous processing on the collected data; according to the scheme, multi-dimensional data are synchronously collected through multiple types of sensors such as a vibration sensor, a vehicle speed sensor and a tire pressure sensor, preprocessing means such as band-pass filtering, feature extraction and time-frequency domain analysis are combined, and then the fault probability of each modal is fused through the evidence theory. According to the method, the limitation of a single sensor is avoided, for example, interference of abnormal air pressure on vibration data is eliminated through a tire pressure correction coefficient, speed sensitive faults are recognized through vehicle speed-vibration correlation analysis, multi-dimensional accurate judgment of radial / axial runout of the hub is achieved, and the detection accuracy is improved by 30% or above compared with a traditional single-mode scheme.

A sensor device includes: an acceleration sensor that rotates in conjunction with rotation of a nut that fastens a wheel hub to a wheel rim and detects an acceleration along a detection axis that intersects with a rotation axis of the wheel rim; and a signal processor that detects a fastening state of the nut based on the acceleration detected by the acceleration sensor.

The invention belongs to the field of wheel road tests and bench tests, and particularly relates to a wheel bench impact test method and system equivalent to test field road impact. The method comprises the following steps: determining a road impact condition of a vehicle for road test; the road impact working condition is reproduced; in the reproduced road impact working condition, simulation prediction of rack impact test energy is carried out; and generating a bench impact test scheme based on a simulation prediction result. Compared with a traditional road test, the method has the same test effect, the test period can be greatly shortened, test resources and cost are saved, potential risks of the wheel road test are found in advance, and a necessary rapid test verification means is provided for wheel design and verification. The assessment of the road test on the wheel is equivalent to the bench test, the reliability of the road test on the wheel is verified before the whole vehicle road test, the risk of failure of the wheel in the whole vehicle road test stage is reduced, and the method is wide in application range, simple, reliable and low in cost.

Systems and methods for predicting anomalies in a wheel system of a semi-trailer truck. One example system includes: a vibration sensor positioned to sense vibrations of the wheel system and an electronic processor communicatively coupled to the vibration sensor. The electronic processor is configured to determine a velocity profile of the semi-trailer truck; obtain a vibration measurement; determine, from the vibration measurement, a classified vibration level; determine whether the classified vibration level is indicative of an anomaly; identify, based on whether the classified vibration level is indicative of the anomaly and both the velocity profile and a reference classified vibration level, an anomaly existing within either or both of the semi-trailer truck wheel system or the road; and perform a mitigation action in response to identifying the anomaly.

The present application relates to the technical field of wheel hub detection, and discloses a wheel hub bearing device and an impact testing machine, the rotation of the first angle adjusting plate is controlled by the hydraulic cylinder, the angle is adjusted with the rotating column as the shaft, the arc-shaped seat and the concave arc surface of the bearing table always keep the state of close contact, which ensures that the impact force generated by the drop hammer mechanism impacting the wheel hub is offset by the bearing table at any angle of the first angle adjusting plate within the preset range, so that the angle control of the first angle adjusting plate will not produce adjustment error due to multiple impact tests, and the bearing table effectively offsets the impact force of the drop hammer mechanism by lifting the arc-shaped seat, avoiding loosening of the triangular structure due to frequent impact. The existing bearing device of the wheel hub outer edge inclined impact testing machine is prone to loosening of the triangular structure composed of the bottom plate, the angle adjusting plate and the hydraulic cylinder during frequent impact tests, which leads to the decline of the inclination angle adjustment precision of the angle adjusting plate and the failure of the hydraulic cylinder, affecting the accuracy of the test and the reliability of the equipment.

The utility model discloses an adjustable wheel radial fatigue testing machine, and relates to the field of wheel radial fatigue testing machines, the adjustable wheel radial fatigue testing machine comprises a base, the top of the base is fixedly provided with a support frame, the interior of the support frame is rotatably connected with a rotary drum through a bearing, the top of the base is slidably connected with a lifting box, and the interior of the lifting box is provided with a lifting assembly; by arranging the lifting assembly, the height of the test shaft can be rapidly adjusted, so that the installation process of a tire is faster and more convenient, a worker does not need to manually carry the tire to a higher position, physical output and carrying time are reduced, and the working efficiency is improved. Through the arrangement of the protection assembly, a fire source can be rapidly detected in the early stage of a fire caused by overheating of equipment due to long-time overload operation of the testing machine, and the fire is killed in the bud, so that the fire is prevented from further spreading.

This invention discloses a calibration unit for a constant velocity universal four-wheel alignment instrument with a hinged rod, belonging to the field of transportation technology. It includes a unit base, a drive motor mounted on one side of the unit base, a constant velocity rotating seat mounted above the unit base, a kingpin assembly mounted above the constant velocity rotating seat, half-shaft assemblies snapped onto both sides of the kingpin assembly, and angle adjustment assemblies sleeved above the kingpin assembly. Two angle adjustment assemblies are included, each comprising an angle adjustment base, an angle adjustment drive arm, an angle adjustment hinge plate, an angle adjustment kingpin sleeve, and an angle adjustment lever. The upper surface of the unit base is movably connected to the lower surface of the angle adjustment base. The inner side of the angle adjustment base is fitted to one end of the angle adjustment drive arm, and the other end of the angle adjustment drive arm is connected to the angle adjustment lever. The end of the angle adjustment lever away from the angle adjustment drive arm is connected to the angle adjustment hinge plate, and the inner side of the angle adjustment hinge plate is connected to the angle adjustment kingpin sleeve. This invention uses a constant velocity universal joint with a hinged rod, improving measurement accuracy.

Test stand device 1 for the steerable mounting of a wheel R of a vehicle to be tested or a wheel assembly RM comprising: a support element 2 for setting up the wheel R with at least one connecting element 30 in a region of an end section of the support element 2, at least two air bearing elements 40 for supporting the support element 2, wherein each air bearing element 40 supports at least one connecting element 30.

According to the differential wheel limiting detection device and method, the rotating direction and the rotating speed of a wheel set can be limited in advance before the differential wheel moves in two directions and collides with a hard limit, so that the control performance of a vehicle is improved, the situation that an oil cylinder and the like fall off due to collision with the hard limit when the speed is high is avoided, and the problem that a traditional differential wheel set is poor in safety is solved. The system has the advantages of quick response, high safety, simple structure and the like, and is suitable for differential wheel control systems of equipment such as AGVs (Automatic Guided Vehicles) and mobile robots.

Disclosed in the present invention are a vehicle measurement device and a vehicle calibration method. The vehicle measurement device includes a base module, a column module, a cross beam module, and a camera assembly. The column module includes a fixed column, a movable column assembly, and a drive assembly. The fixed column is connected to the base module. The movable column assembly is mounted on the fixed column. The movable column assembly is connected to the drive assembly. The drive assembly is used for driving the movable column assembly to lift or lower relative to the fixed column. The cross beam module is supported by the movable column assembly. The cross beam module is used for supporting a calibration element. The camera assembly is mounted on the cross beam module. The camera assembly is used for capturing wheel information of a vehicle By means of the structure, the vehicle measurement device can not only calibrate an ADAS, but also perform four-wheel positioning, so that it is unnecessary to purchase two devices, and the cost is reduced. At the same time, the vehicle does not need to be moved to two stations for maintenance, so that the maintenance efficiency is improved, and the device is more convenient to use.

The utility model discloses a defect detection device which comprises a detection table and a defect identification detector, an annular groove is formed in the detection table, an annular electric slide way is installed in the annular groove, the defect identification detector is located on the annular electric slide way, and an adjusting mechanism is arranged between the defect identification detector and the movable end of the annular electric slide way; a fixing shaft is arranged at the center of the detection table, a cavity is formed in the fixing shaft, and a fixing mechanism is arranged on the cavity. According to the wheel detection device, after a wheel is sleeved on the fixing shaft, the wheel can move downwards and press the lower pressing plate downwards under the action of gravity, the lower pressing plate pulls the conical fixing sleeve downwards through the cylinder, the conical fixing sleeve is fixed through the fixing mechanism, and then the wheel can be detected. The conical surface of the conical fixing sleeve extrudes the inclined surface of the ejector block, so that the ejector block moves towards the outer side, the wheel is ejected and fixed to the fixing shaft, meanwhile, the lower pressing plate supports the wheel at the bottom, and according to the design, bolt screwing is not needed, and fixing can be completed by means of the weight of the wheel.

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 utility model discloses forklift wheel adhesion degree detection equipment which comprises a base, and a mounting frame and a driving device are arranged on the base. The detection roller is rotationally mounted on the mounting frame, and the detection roller is connected with the output end of the driving device; the hydraulic device is installed at the top of the installation frame, the telescopic end of the hydraulic device is provided with a fixing assembly used for installing forklift wheels, and the hydraulic device is used for controlling the fixing assembly to move towards the detection roller. And the bonding firmness of accessories and wheel bodies in the forklift wheels can be detected.

The invention relates to the technical field of planet detection equipment testing, in particular to a planet patroller wheel and soil coupling physical characteristic experiment platform. Comprising a test frame, a data acquisition and analysis module, an environment and working condition simulation unit, a wheel driving unit and a moving unit, and the test frame is used for loading simulated planet soil or ground soil; the wheel driving unit is used for driving the test wheel to rotate and collecting mechanical parameters of the action of the test wheel and soil; the moving unit is connected with the wheel driving unit and used for achieving horizontal movement and passive vertical movement of the wheel driving unit. The environment and working condition simulation unit is connected with the wheel driving unit or the moving unit and is used for simulating different planet gravity environments or working condition resistance; and the data acquisition and analysis module is used for acquiring and analyzing multi-dimensional physical parameters in the wheel-soil coupling process. The device is flexible and safe in structure, can simulate multiple gravity environments and multiple working conditions, and can realize synchronous test and acquisition of multiple parameters.

This application relates to a wheel detection method, apparatus, computer equipment, and storage medium. The method includes: acquiring noise time-domain data of the target wheel at a preset acquisition frequency using a noise acquisition component corresponding to the target wheel; determining the dominant noise frequency data of the target noise time-domain data in a preset frequency band based on the target noise time-domain data, and determining the target wear order of the target wheel based on the dominant noise frequency data; determining the target sound pressure level density threshold corresponding to the target wear order based on the target wear order and a preset first correspondence between the wear order and a sound pressure level density threshold; and generating detection information indicating wheel abnormality if the dominant frequency sound pressure level density in the noise frequency data is greater than or equal to the target sound pressure level density threshold. This solution allows for real-time detection of the target wheel.

The invention relates to a test charging cable (1) intended for simulating connection / disconnection operations at a charging station and a powertrain test bench. The cable comprises a charging station interface (2) and a test bench interface (3), power (4) and ground (5) electrical cables, as well as a CP line (6) and PP lines (72, 73). The electrical cables and the CP line connect the charging station interface and the test bench interface. The cable further comprises a control interface (10) positioned on the PP lines (72, 73) and the CP line (6), arranged to allow conditional transmission of information on said PP and CP lines. Figure 1

In at least some implementations, a method of determining rotational inertia of a vehicle wheel is accomplished by applying torque to the wheel and determining a rotational characteristic of the wheel resulting from the applied torque. The method includes the steps of applying torque at a first level to a wheel, determining one or more rotational speeds of the wheel caused by the torque at the first level, applying torque at a second level to the wheel, where the second level is different than the first level, determining one or more rotational speeds of the wheel caused by the torque at the second level, and determining a rotational inertia of the wheel as a function of the one or more rotational speeds of the wheel caused by both the torque at the first level and the torque at the second level.

Method for evaluating friction between a ground (10) and a trolley wheel (20) by means of a test device (30) comprising a chassis (31) and an upright (32), the wheel (20) being fixedly mounted on the chassis (31) and in contact with the ground (10) at a contact point (C), the method comprising: applying a test force (ER) to the upright (32) of the test device (30) at a support height (HA); estimating an actual friction coefficient between the wheel (20) and the ground (10) relative to a threshold friction coefficient (µs). Abstract figure: Figure 1

An apparatus configured to be removably attached to a vehicle includes a data collection device that is removably attachable to the vehicle. The data collection device includes an enclosure including a motion measurement sensor housed therein, and a mounting mechanism. The enclosure including the motion measurement sensor housed therein is configured to measure parameters that are used for calculating vibrational anomalies of the vehicle. The mounting mechanism is removably attached to the enclosure including the motion measurement sensor housed therein. The mounting mechanism has a proximal end and a distal end. The proximal end of the mounting mechanism has a fixative for removably attaching the mounting mechanism to the enclosure including the motion measurement sensor housed therein. The fixative is immobile with respect to the enclosure immediately upon attachment to the enclosure including the motion measurement sensor housed therein. The fixative thereby does not require further movement with respect to the enclosure including the motion measurement sensor housed therein immediately upon attachment to the enclosure including the motion measurement sensor housed therein. The distal end of the mounting mechanism is a vehicle mounting interface configured to allow the data collection device to be removably attached to the vehicle.

This invention discloses a comprehensive performance testing machine for bicycle wheelsets. A yaw mechanism is rotatably mounted between the upper platform and the machine base. A height adjustment mechanism for adjusting the height is fixed at the top of the yaw mechanism. A vibration structure for simulating vertical vibration is mounted on the height adjustment mechanism. A yaw component is mounted on the height adjustment mechanism, and a walking structure for bicycle wheel rotation is also mounted on the yaw component. A sliding platform is slidably mounted on the bottom of the machine base via a linear track and a moving cylinder. A roller module is rotatably mounted on the sliding platform via a bearing seat. A high-speed motor and a low-speed motor are also mounted on the sliding platform. This machine integrates multiple testing functions, including riding fatigue, yaw cornering, road bumps, braking performance, acceleration performance, and transmission system compatibility. It comprehensively covers the actual riding scenarios of bicycle wheelsets, completing multiple performance tests of the wheelset in one go, significantly improving testing efficiency.

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.

Anomaly analysis is performed for a subsystem or component of a vehicle that experiences mechanical vibration during rotation of the subsystem or component using a database of trends of the axis of rotation and trends of vibrational frequencies of a plurality of different subsystems or components with known anomalies, and an artificial intelligence (AI) model. In operation, a first processor triangulates a location of the axis of rotation of the subsystem or component of the vehicle at any instance of time using motion data collected from a plurality of motion measurement sensors that are attached to the subsystem or component, thereby defining locations of the axis of rotation at a plurality of successive instances of time. A second processor determines, using the AI model and the trends of the axis of rotation in the database, points of interest from the locations of the axis of rotation of the subsystem or component at the successive instances of time. The anomaly of the subsystem or component is identified using the AI model and the trends of the axis of rotation and trends of vibrational frequencies in the database, wherein the AI model uses the points of interest in its processing. One or both of a cause of the anomaly and a recommended corrective action to be taken to address the anomaly is generated using the AI model, wherein the AI model uses the identified anomaly of the subsystem or component in its processing. The AI model outputs one or both of the cause of the anomaly, and the recommended corrective action to be taken to address the anomaly.