221results about "Vehicle wheel testing" patented technology

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.

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 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.

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.

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.

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 testing, in particular to an automobile part impact test device which comprises a machine body and a connecting plate slidably mounted on the inner side of the machine body, and a hollow impact seat is fixedly mounted at the lower end of the connecting plate. When the hub is subjected to an impact test, the hub is positioned by means of the central hole of the hub, the hub can be quickly, simply and conveniently limited in multiple directions, when the hub is impacted, the hub does not horizontally displace or deflect due to counter-acting force, and the hub impact test device is suitable for hubs of different sizes. Therefore, the accuracy of the impact position and the reliability of test data are prevented from being influenced. The wheel hub can rotate, so that more parts on the wheel hub can be conveniently subjected to an impact test, meanwhile, the convex parts at the edges of the two sides of the wheel hub and the concave part between the convex parts at the edges of the two sides can be selectively and heavily impacted, and the impact resistance of key parts of the wheel hub can be comprehensively verified.

The utility model discloses a wheel rotation fixing device for wheel detection, which comprises an operation table, the top of the operation table is connected with a rotary table through a first driving mechanism, the top of the rotary table is provided with a fixing frame, the top of the rotary table is provided with a positioning table, and the outer ring of the positioning table is circumferentially provided with three groups of sliding rails and is slidably connected with a sliding seat. The second driving mechanism can drive the three sets of sliding seats to synchronously move towards the center along the sliding rails, the sliding seats can drive the positioning blocks to abut against and position wheels, and therefore the wheels can be accurately positioned. The outer wall of the tire can be supported through the auxiliary supporting mechanism, and during detection, the first driving mechanism can drive the rotary table and the wheel to rotate so as to detect various parameters, so that stable fixation and stable rotation of the wheel can be realized through the structure, detection convenience and maintenance convenience are both considered, and the detection efficiency and precision are improved.

A new energy automobile wheel and bolt triaxial endurance fatigue test system and a test method thereof relate to the field of automobile hub processing, and comprise a dynamic test wheel, and strain gauges are pasted at the positions of a spoke, a rim, a rim, a bolt hole and a center hole of the dynamic test wheel; the wheel bolt axial force strain gauge is pre-buried in a shaft core drill hole of the finished wheel bolt; the wheel six-component sensor is assembled on the processing rim; the three-axis endurance fatigue test system is provided with a broadband response road simulation test bench used for installing a suspension clamp of a wheel-tire assembly. And a new generation of wheel and bolt triaxial endurance fatigue test technical scheme with ultrahigh strength, excellent fatigue resistance and reliable anti-loosening capability is developed.

A presumption system includes a first sensor capable of being disposed between a wheel and a tire fitted to the wheel, which outputs a first sensor signal corresponding to a pressing force generated by the wheel and the tire, and a processor that presumes a state of a rotating body including the wheel and the tire based on the first sensor signal, the processor generating a first interval signal by dividing the first sensor signal in a certain interval, and presuming the state of the rotating body based on the first interval signal.

The utility model discloses a wheel multi-dimensional force real-time measuring device, which comprises a multi-dimensional force sensor, a hub bearing and a vehicle-mounted controller, and a rolling body is arranged between the outer ring and the inner ring of the hub bearing; the outer ring of the hub bearing is fixedly connected with the multi-dimensional force sensor; the vehicle-mounted controller is connected with the multi-dimensional force sensor through a signal line. According to the utility model, through the multi-dimensional force sensor arranged on the hub bearing, the wheel multi-dimensional force generated when the wheel interacts with the ground is collected in real time, and the collected data is transmitted to the vehicle-mounted controller; the vehicle-mounted controller can carry out calibration and verification of wheel multi-dimensional force, hub bearing health state diagnosis, wheel health state diagnosis, vehicle motion control, intelligent driving motion control, intelligent cabin active noise reduction control and cloud model control.

A sensor device includes an acceleration sensor that detects an X-axis acceleration and a Y-axis acceleration. The sensor device further includes a signal processor that detects a fastening state of each nut based on a comparison result between a rotation angle of the sensor device calculated based on the X-axis acceleration and the Y-axis acceleration and an initial rotation angle of the sensor device calculated based on an initial value of each of the X-axis acceleration and the Y-axis acceleration. After each of the X-axis acceleration and the Y-axis acceleration becomes equal to a value that can be regarded as a zero value, the signal processor defines an acceleration which is detected by the acceleration sensor and is greater than the zero value as an initial acceleration.

A wheel load estimation device can include a tire information acquisition unit, a wheel speed acquisition unit, a frequency characteristic ratio calculation unit, a load ratio calculation unit, and a wheel load calculation unit. The tire information acquisition unit can acquire type information specifying a type of a tire. The wheel speed acquisition unit can acquire wheel speed information representing wheel speed of each wheel of a vehicle. The frequency characteristic ratio calculation unit can calculate front-rear and left-right frequency characteristic ratios. The load ratio calculation unit can calculate front-rear and left-right load ratios. The wheel load calculation unit can calculate a wheel load ratio representing a relative wheel load. The load ratio calculation unit can calculate the front-rear and left-right load ratios, based on first relationship specification information and second relationship specification information, respectively.

The invention provides a wheel center force testing method, and belongs to the technical field of vehicle testing. The method comprises the steps that a plurality of excitation points are arranged on a wheel around a wheel center virtual point, an excitation device is used for conducting excitation in sequence, excitation force, knuckle vibration response and in-vehicle noise response signals are synchronously collected, and a vibration transfer function matrix and a noise transfer function matrix are obtained; constructing a transfer matrix according to the space coordinate relationship between the wheel center virtual point and the excitation point, and converting the actual measurement transfer function matrix into a transfer function matrix from the wheel center virtual point to each response point; vibration response data and noise response data of the vehicle under the preset working condition are collected; and obtaining the wheel center force acting on the wheel center virtual point based on the converted transfer function matrix and the response data of the preset working condition. According to the method, multi-point excitation, virtual point conversion and indoor controlled working condition testing are combined, so that the testing precision of the transfer function is effectively improved, the environmental interference of outdoor real road testing is eliminated, and the data precision of the wheel center force is remarkably improved.

The invention provides an intelligent monitoring system for the slip rate of an unmanned tractor, and the system comprises a GNSS vehicle speed measurement unit which is used for collecting the ground speed of a vehicle and a system UTC time reference; the multi-node wheel rotating speed measuring unit comprises at least four wheel nodes and is used for collecting rotating speed data of each wheel; the GNSS vehicle speed measuring unit, the multi-node wheel rotating speed measuring unit and the central processing and display unit are connected through a star flash wireless network; and the central processing and display unit is configured to perform fusion processing on the received vehicle ground speed and system time reference data and the rotating speed data of each wheel, calculate the slip rate and interact with a whole tractor controller. The system can provide real-time and accurate four-wheel slip rate data for a traction control system of the unmanned tractor.

This invention discloses a clearance testing machine and method for automotive wheel hub units, belonging to the field of precision testing and automated control technology for automotive parts. The method includes: setting up a probe assembly comprising a primary main drive and a secondary vibration unit, and a multi-point hydraulic adaptive floating support platform below it; placing the automotive wheel hub unit on the platform, utilizing Pascal's principle to connect the hydraulic column, and automatically finding equipotential surfaces through fluid flow to eliminate tilting errors caused by microscopic unevenness; driving the probe to feed and generate axial shear vibration, utilizing thixotropy to destroy the grease network structure and liquefy it, thereby eliminating the virtual stiffness of the oil film; real-time monitoring and feedback, maintaining a static micro-load, and when the system determines a sudden change in stiffness from viscosity to elasticity, locking the position reading and calculating the axial clearance. This invention effectively avoids measurement data distortion caused by workpiece machining tolerances or clamping tilt, significantly improving the physical reference accuracy of clearance testing.