1349results about "Vehicle suspension/damping testing" patented technology

The invention discloses a multi-parameter fusion analysis method for fault diagnosis of an automobile shock absorber, and relates to the technical field of shock absorber analys.The method comprises the steps that a vehicle key point position set is obtained, and a sensor set is arranged to obtain a vehicle work sensing module; a vehicle working multi-sensing data flow is monitored and obtained, and a vibration damper working characteristic parameter set is obtained; optimizing to obtain a target data fusion algorithm, and obtaining working state fusion characteristic parameters of the shock absorber; carrying out matching degree calculation on the fusion characteristic parameters of the working state of the shock absorber; and carrying out fault judgment analysis on the dynamic matching degree of the shock absorber, determining fault diagnosis information of the shock absorber, and carrying out fault feedback optimization. The technical problems that the condition of the shock absorber is difficult to comprehensively and accurately detect and the fault part cannot be accurately and rapidly diagnosed and positioned in the existing shock absorber fault diagnosis parameter analysis, so that the comprehensiveness and reliability of the fault diagnosis of the automobile shock absorber are insufficient are solved, and the technical effects of improving the fault diagnosis efficiency and accuracy and the performance of the shock absorber are achieved.

The invention discloses an automatic shock absorber assembling device and method. The automatic shock absorber assembling device comprises a rack, a rotating disc, a graduator arranged on a shell and used for driving the rotating disc to rotate and a plurality of jigs circumferentially arranged on the rotating disc. The shell and lining feeding and press-fitting mechanism, the transferring mechanism, the sealing cover feeding mechanism, the spin riveting mechanism, the torque detection mechanism and the discharging mechanism are arranged on the machine frame. The shock absorber assembling device has the advantages that the integration degree of all the mechanisms is high, products can be rapidly assembled, the shock absorber assembling efficiency is effectively improved, the size of the whole device is reduced, and the manufacturing cost is saved. According to the shell and lining feeding press-fitting mechanism, linings and shells can be fed at the same time, multiple performance detection of the linings can be completed, synchronous movement of the linings in all assemblies is achieved through the linkage transfer mechanism, and the press-fitting efficiency between the shells and the linings is effectively improved.

Aspects of the present invention relate to a diagnostic apparatus (100) for use in testing an electromechanical actuator system of a vehicle (500). The diagnostic apparatus comprises one or more controllers (110), and the diagnostic apparatus configured to: generate a torque demand signal (155) corresponding to a torque demand profile (300), the torque demand profile configured to cause actuators of the electromechanical actuator system to modify a suspension of the vehicle (402); transmit the torque demand signal to the electromechanical actuator system of the vehicle (404); record a suspension characteristic of the vehicle in response to application of the torque demand signal (406); and output the recorded suspension characteristic of the vehicle (408).

The invention discloses an automobile shock absorber testing device, and belongs to the technical field of shock absorber testing. The device mainly comprises a test seat, the upper end of the test seat is fixedly provided with an upper fixing plate, the lower end of the test seat is fixedly provided with a lower fixing plate, and the middle part of the test seat is fixedly provided with an auxiliary plate; the lower clamping jaw is mainly composed of a lower chuck movably installed on the lower fixing plate and a lower chuck hinged to the lower chuck. The first air cylinder is fixedly installed at the bottom of the upper fixing plate. According to the automobile shock absorber testing device, the second air cylinder and the arc-shaped plate are arranged, certain thrust can be exerted on the shock absorber from the side face when the automobile shock absorber is tested, and therefore the situation that the direction of pressure borne by the automobile shock absorber is synchronously changed due to the change of road conditions in the driving process of an automobile is simulated; therefore, the test result of the automobile shock absorber is more accurate and fits the actual use scene.

The invention discloses a motorcycle frame fatigue testing device, and belongs to the technical field of motorcycle fatigue driving, the testing device comprises a supporting platform, a vertical supporting plate installed on the supporting platform, and a vertical pipe positioning hole is positioned and supported through a vertical pipe positioning assembly installed on the vertical supporting plate. The vertical supporting plate is provided with a vibration mechanism used for the frame at the same time. The vertical supporting plate is connected with a main beam pipe supporting shaft, a front supporting pipe supporting shaft, a bottom fork hole supporting shaft and a pedal hole supporting shaft through a plurality of plane adjustable limiting pieces, each plane adjustable limiting piece comprises a U-shaped longitudinal sliding rail and a longitudinal sliding block installed in the longitudinal sliding rail in a sliding mode, and a longitudinal groove is formed in the side wall of each longitudinal sliding rail; a vertical sliding rod is fixed to the back side of the longitudinal sliding rail and arranged in a vertical groove formed in the vertical supporting plate in a sliding mode. The device can be used for testing various types of vehicles with different specifications, so that the testing cost is saved, and more effective design data can be provided for the design of motorcycles.

A suspension system performs calculations using machine learning by mapping sensor information and suspension state information. The suspension system includes: a weighting parameter storage unit; a vehicle state estimation unit; a first vehicle behavior calculation unit that calculates a first physical value based on the estimation result; a second vehicle behavior calculation unit that calculates a second physical value based on the sensor information; an estimation accuracy verification unit that outputs an estimation accuracy of the suspension state by comparing the first and second physical values; and a driving data control unit that instructs weighting parameter learning based on an output result of the estimation accuracy.

The invention discloses a system for predicting performance degradation of an automobile shock absorber, and relates to the technical field of shock absorption, and the system comprises the steps: obtaining a historical monitoring record of a preset shock absorber, matching a record under a first historical node from a plurality of sets of records, carrying out the analysis according to a preset hardness strategy to obtain first historical hardness under the node, and carrying out the prediction of the performance degradation of the shock absorber. Analyzing the corresponding relation between the first historical node and the hardness to obtain the real-time hardness, and finally analyzing the deviation between the real-time hardness and the hardness reference to obtain the real-time performance attenuation index. The technical problem that in the prior art, a means for accurately predicting the performance attenuation of the shock absorber is lacked is solved, and the technical effects of accurately predicting the performance attenuation of the shock absorber of the automobile in real time and improving the driving safety of the automobile are achieved by taking the hardness as a key factor for representing the state of the shock absorber.

The invention relates to the technical field of spring performance testing, in particular to an air spring shock absorber performance testing device which comprises an L-shaped mounting base, a limiting mounting plate, a clamping mechanism and a compression assembly, the limiting mounting plate is arranged on the horizontal section of the L-shaped mounting base, and the clamping mechanism is mounted on the front end face of the limiting mounting plate; according to the air spring shock absorber compression device, multiple positions of an air spring shock absorber are limited, clamped and fixed from bottom to top through the clamping mechanism, and the upper portion of the air spring shock absorber can be clamped and limited in a sliding mode all the time in the compression process through cooperation of a limiting clamping piece and a limiting sliding piece; the stability of the air spring shock absorber is greatly improved, the rotating motor, the limiting mounting plate and the locking assembly are matched to drive the air spring shock absorber to adjust the placement angle and then stably lock the air spring shock absorber, so that compression tests can be performed on the air spring shock absorbers arranged at different angles, and the comprehensiveness of the compression tests is improved.

The invention provides a vehicle NVH comfort assessment method and device based on sound and vibration fusion and electronic equipment. The method comprises the following steps: performing in-vehicle interference noise identification processing on window-level data in a candidate window set to obtain a candidate effective window set; calculating a sound and vibration consistency index between the in-vehicle audio signal and the in-vehicle vertical acceleration signal for the window-level data in the candidate effective window set, and screening an external noise dominant window to obtain an effective window set; respectively calculating an acoustic index and a vibration index based on the effective window set, and performing calibration compensation on the acoustic index and the vibration index based on the sensor calibration information; and performing fusion calculation based on the data volume information of the effective window set, the working condition coverage information, the uncertainty information corresponding to the sensor calibration information and the proportion information of the effective window set in the candidate window set to obtain a comprehensive confidence index. According to the method, the evaluation accuracy and stability can be improved, the cross-equipment comparability is enhanced, and the result credibility is improved.

The invention relates to the technical field of new energy automobile tension spring testing, and discloses a new energy automobile tension spring stability detection device, which comprises a mounting bracket arranged at the top of a supporting bottom plate, a tensile test mechanism arranged on one side of the mounting bracket, and a compression test mechanism arranged on the other side of the mounting bracket. According to the new energy automobile tension spring stability detection device, a transmission gear drives a transmission rack to perform lifting adjustment, a tension spring is conveniently and stably stretched, the tensile strength of the tension spring is further tested, and a hand and a forward and backward lead screw conveniently drive four spring clamping plates to perform telescopic movement through a nut seat; the clamping diameter of a spring clamping plate is flexibly adjusted, an electric air cylinder drives a spring top plate to press downwards, the spring top plate is connected with a spring sleeve rod through a limiting round hole, the tensioning spring is conveniently limited in the spring clamping plate to be compressed, the compression deformation degree of the tensioning spring is conveniently observed, and the compression strength of the tensioning spring is conveniently tested.

The invention discloses an automobile shock absorber and a buffer test device thereof, and relates to the technical field of automobile shock absorbers, the automobile shock absorber comprises a shock absorber main body, one end of the shock absorber main body is provided with a mounting hole, and a position, close to the mounting hole, of the shock absorber main body is provided with a test positioning member; and the other end of the shock absorber main body is provided with a detachable detection top piece. The buffer test device of the automobile shock absorber comprises a test board, a sensing detection mechanism, a telescopic installation clamping piece and a simulation turntable mechanism. The simulation turntable mechanism drives the reciprocating screw rod to synchronously rotate in the rotating process, the reciprocating screw rod enables the matched screw rod sleeve to reciprocate, and the screw rod sleeve drives the linkage ring to transversely reciprocate, so that the linkage ring drives the distributed sliding bumps to slide relative to the simulation turntable mechanism through the first linkage rod to adjust the projection height; therefore, different-degree bumpy road surfaces can be automatically adjusted and simulated.

The present disclosure relates to a device for detecting and identifying play and checking the attachment of wheel, steering-assembly and suspension parts of vehicles. The device includes a linearly displaceable carriage and a supporting plate which is configured to support a wheel of a vehicle. The supporting plate is rotatable, and the carriage is displaceable with respect to the supporting plate in a direction corresponding to the transverse direction of the vehicle. Additionally, the carriage includes a rotatable structure which is configured to rotate the supporting plate about an axis of rotation.

The invention provides an endurance test system and method for a front control arm assembly of a Macpherson suspension. The system comprises a ball head loading constraint tool, a rotating tool and a controller, the ball head loading constraint tool comprises a fixing block, wherein a first side surface of the fixing block is connected with a ball head of the front control arm assembly; the first end of the lateral loading rod is connected with the second side surface of the fixed block; the lateral actuator is connected with the second end of the lateral loading rod; the first end of the longitudinal loading rod is connected with the third side surface of the fixed block; the longitudinal actuator is connected with the second end of the longitudinal loading rod; the restraining assembly is connected with the fourth side face of the fixing block; the rotating tool comprises two lateral fixing plates which are oppositely arranged; the two ends of the rotating pipe in the extending direction are rotationally connected with the two lateral fixing plates; the lining fixing assembly is connected with the outer wall of the rotating pipe; the rotary loading block is connected with the outer wall of the rotary pipe; the rotary actuator is connected with the rotary loading block; the controller is in communication connection with the lateral actuator, the longitudinal actuator and the rotary actuator.

The utility model relates to the technical field of inspection, in particular to a motor vehicle suspension inspection device which comprises a box body with symmetrical openings at the front end and the rear end, universal wheels are installed at the bottom end of the box body in a matched mode, four guide sleeves are fixedly installed at the upper end of the box body, and supporting columns are slidably sleeved with the four guide sleeves. A fixing mechanism used for fixing and clamping motor vehicle tires is fixedly installed at the upper end of the supporting column, and a lifting mechanism used for pulling the fixing mechanism to do reciprocating motion in the vertical direction is arranged in the box body. A silica gel plate is arranged on the inner side of the fixing clamping plate, a strong spring with a buffering effect on clamping and a limiting column for limiting the contraction direction of the strong spring are arranged between the fixing clamping plate and the silica gel plate, and the situation that wheels are damaged when the device clamps the wheels is prevented; a circular plate capable of rotating freely is arranged in the movable plate, and a traction column movably arranged on the transmission strip in a sleeving mode is dragged to do back-and-forth lifting motion, so that the whole fixing mechanism is driven to do back-and-forth lifting motion.

The invention discloses a vehicle fault diagnosis and early warning method and system based on vibration and noise. The method comprises the following steps that vibration signals and noise signals corresponding to different vehicle fault types are collected; obtaining corresponding time-frequency characteristic data, and converting all the time-frequency characteristic data into characteristic picture data; constructing an image-based deep learning model, and training by using the feature picture data to obtain a trained vehicle fault diagnosis model; and performing vehicle fault diagnosis and early warning by using the trained vehicle fault diagnosis model. In the scheme of the invention, the time-frequency feature picture provides the information of the fault signal on time and frequency, so that the analysis of the fault signal is more comprehensive. Through time-frequency analysis, transient characteristics and frequency components in the signals can be identified, and a model is helped to better understand a fault mode. Meanwhile, the time-frequency characteristic picture can effectively capture the characteristics of non-order vibration and noise, so that more accurate information is provided for fault diagnosis.

The invention is suitable for the technical field of vehicle intelligent control, and provides a data-driven semi-active suspension damping self-adaptive calibration method, which comprises the following steps of: firstly, acquiring and preprocessing real vehicle state data, and then designing a semi-active suspension damping self-adaptive calibration network based on deep Q network reinforcement learning, the method comprises the following steps: constructing a composite reward function architecture fused with Bayesian optimization to optimize vehicle performance indexes, then carrying out network training, finally determining a damping coefficient by using a reinforcement learning algorithm based on a deep Q network, controlling a magneto-rheological damper, and evaluating an action effect through real vehicle reward. According to the method, data driving and deep Q network reinforcement learning are combined, real vehicle data are collected and utilized to determine the suspension damping coefficient, and rapid calibration and online iteration are achieved; the generalization performance of reinforcement learning enables the intelligent vehicle to adapt to most typical working conditions after being fully trained, solves the problem of traditional calibration, improves the self-adaptive calibration capability of the suspension, and gives consideration to the smoothness and operation stability of the vehicle.

A method includes obtaining pressure data and temperature data for gas in respective ones of shock struts of a plurality of landing gear. The method includes determining, for each shock strut for a first time corresponding to an end of a first change in gas pressure due to movement of a piston of the shock strut during loading or unloading of the aircraft, a friction value associated with the shock strut based on a gas pressure and a gas temperature at the first time. The method also includes computing, for a particular time before the loading or the unloading of the aircraft causes a second change in gas pressure of one or more of the shock struts, a weight of the aircraft based on the gas pressures of the shock struts at the first times and the friction values associated with the shock struts at the first times.

The invention relates to the technical field of air supply unit testing of an air suspension, in particular to air supply unit testing equipment and a testing system of the air suspension, and the testing equipment comprises a high-low temperature damp-heat alternating testing box, four simulation air spring load devices, an industrial personal computer and a first testing air path; the simulated air spring load device is used for simulating the load of an automobile body on the air spring; the gas supply unit is used for testing in a test room of the high-low temperature damp-heat alternating test box, and the high-low temperature damp-heat alternating test box, the gas supply unit and the first test gas path are all controlled by the industrial personal computer; the first test gas circuit is used for testing the gas supply unit. According to the invention, the air supply unit to be tested of the air suspension is tested in a simulated extreme environment, and the weight is increased or decreased to simulate the load of the vehicle body on the air spring, so that the core capabilities of pressure-flow control, environmental adaptability, reliability and the like of the air supply unit are effectively and systematically verified. The verification of the air supply unit is directly related to the safety, comfort and durability of the automobile.

The invention discloses a service life prediction method and device for a vehicle and an engine silicone oil damper and a medium, and the service life prediction method for the engine silicone oil damper comprises the steps: obtaining the service life of an external characteristic rated point of the damper in a rack endurance test environment; wherein the service life of the external characteristic rated point is the service life of the shock absorber when the engine is at the highest rotating speed and the highest load rate; acquiring a road actual measurement load spectrum of the shock absorber; determining the actual damage value of the shock absorber according to the actually measured load spectrum of the road and the service life of the external characteristic rated point; the actual damage value is the damage value of the shock absorber during the road spectrum acquisition period; and predicting the service life of the shock absorber under the road working condition according to the actual damage value and the driving mileage during the road spectrum acquisition period. According to the technical scheme, accurate prediction of the service life mileage of the shock absorber under the road working condition can be realized based on the torsional vibration test working condition and the actually measured road spectrum, so that reliability evaluation of the shock absorber after the torsional vibration test is guided.

The invention relates to a height adjustment precision calibration method based on a steady-state air suspension system, which is characterized in that the method is static (not influenced by external force), and the pressure difference between the input end and the output end corresponding to the height of a certain air spring is constant (the input end is an air pump and an air storage tank during ascending, the output end is the air spring, and the input end and the output end are opposite during descending); when the sensor rises or falls to a certain target height, the overshoot is constant, and the descending adjustment threshold calibration process of the certain target height comprises the following steps: (1) rising and falling to Hi for many times, recording the height values hi drop 1, hi drop 2, hi drop 3,..., hi drop n (n can be determined by a tester, for example, n = 10) of the sensor after the adjustment is finished and the height is stable, and for a multi-air-spring system, determining the height of the sensor according to the height of the sensor; the absolute values of a plurality of height sensors can be calculated to serve as height adjustment results, a simpler model and a calibration method with higher operability are adopted, and the precision control over height adjustment is more direct and effective.

A vehicle chassis sensor assembly for measuring the ride height of a vehicle which comprises a rotary arm member including an overmolded magnet encapsulated in the rotary arm member. In one embodiment, the overmolded magnet includes a layer of overmold material defining an open overmold window in the side and / or top exterior surfaces of the layer of overmold material. Another embodiment includes a pair of spaced magnets that are completely encapsulated in a two step molding process before being molded into a rotary arm member.

The invention relates to the technical field of suspension system detection, and discloses a suspension system sensor fault diagnosis and signal redundancy fault tolerance method and system, and the method comprises the steps: firstly collecting an unsprung acceleration signal and a vehicle speed signal, and obtaining an unsprung acceleration power spectrum through preprocessing and power spectrum estimation; knee point frequency is determined through piecewise fitting, then speed normalization roll-off frequency is calculated, final roll-off frequency is determined, piecewise power law pavement displacement power spectrum priori is established in combination with a vehicle dynamics model transfer function, and an expected output power spectrum is obtained. And dividing an analysis frequency band based on the roll-off frequency, calculating a single-channel normalized energy statistic, setting a fault threshold according to statistical distribution and a significance level, and judging whether the sensor fails or not. If the fault occurs, performing frequency domain regularization inversion by taking power spectrum prior as constraint to obtain pavement displacement power spectrum estimation and generate target channel virtual output; and finally, according to the difference between the statistical magnitude and the fault threshold, outputting a fault-tolerant result.

The utility model relates to the technical field of automobile suspension testing, and discloses a testing tool of an automobile suspension fatigue test bench, which comprises a base and a fixing frame on one side of the top of the base, two electric slide rails are fixedly connected outside the fixing frame, a moving plate is slidably connected outside the electric slide rails, and the moving plate is fixedly connected with the fixing frame. A connecting frame is fixedly connected to the exterior of the movable plate, a fixing block is fixedly connected to the bottom of the connecting frame, two clamping grooves are formed in the fixing block, a testing instrument is detachably connected to the bottom of the fixing block, and a dismounting assembly is arranged in the fixing block and used for dismounting the testing instrument. According to the utility model, the motor drives and drives the swing disc to rotate, so that the two connecting rods drive the two sliding plates to slide on the sliding columns to move oppositely or oppositely, and the moving blocks on the sliding plates move along with the sliding plates, thereby enabling the clamping blocks to clamp the automobile suspension, and guaranteeing the stability of the automobile suspension in the testing process.

The vehicular state estimation apparatus includes: a physical quantity detector configured to detect a physical quantity indicating behavior by the vehicle; a vehicle behavior estimator configured to estimate current behavior by the vehicle; a distance sensor that is configured to detect a value pertaining to a distance between the vehicle body member and a measurement point on a road surface in front of the vehicle and corresponding to at least a central section of a road surface contact section on a wheel; a distance calculator configured to calculate a road surface distance; a spring constant calculator configured to calculate at least one of spring constants, in a vehicle stopped state; and a suspension controller configured to control operation of the active suspension apparatus based on the spring constants, the road surface distance, and vehicle behavior information.

An accumulator checking method comprises setting a present state of an accumulator check to a first state, determining first target open and closed states for valves of a suspension system based on the present state being set to the first state, selectively opening and closing the valves according to the first target open and closed states, respectively, when the valves are in the first target open and closed states, respectively, selectively operating an electric pump in a first direction and increasing a pressure of hydraulic fluid in a first portion of the suspension system including an accumulator, selectively opening one or more of the valves and decreasing the pressure in the first portion after the increasing, selectively recording the pressure in the first portion based on a second derivative of the pressure while the pressure is decreasing, and selectively diagnosing a fault in the accumulator based on the recorded pressure.

The invention relates to the technical field of image processing, in particular to a damper valve system adjustment method based on an artificial intelligence technology, a product, equipment and a storage medium. The method comprises the steps that parameter combinations of all valve systems of the shock absorber are collected; performing data quantization on the parameter combination to obtain a feature combination; and inputting the feature combination into a neural network model to obtain a change curve of the damping force along with the piston speed predicted by the neural network. According to the method, the external characteristic functions of the passive hydraulic shock absorber under different valve system structures are predicted through the artificial intelligence algorithm, and the number of tests in the chassis adjustment process is reduced.

The invention discloses a new energy automobile shock absorber performance detection device, which comprises a shock absorber performance detection main body, a performance detection structure and a lower clamping seat, and is characterized in that the performance detection structure pushes a lifting piston spring sleeve rod and a pushing piston spring sleeve rod through a transverse electric push rod, a lifting liquid pipe and other parts by utilizing hydraulic pressure generated by safe liquid circulation, and the performance detection structure detects the performance of a shock absorber. The multi-direction stress working condition of the shock absorber is simulated, synchronous detection of static and dynamic performance is achieved, meanwhile, a camera and a rotating ring structure are detected, the appearance and the working state of the shock absorber are shot in real time in the detection process, the detection is carried out synchronously with other performance detection, and the detection comprehensiveness and accuracy are improved; through cooperation with other structures for rapid and accurate detection, the tedious operation of adjusting equipment for multiple times in traditional detection is avoided, the detection time is greatly shortened, the labor cost and the equipment loss are reduced, and an efficient and reliable solution is provided for new energy automobile shock absorber performance detection.

The embodiment of the invention provides a measuring device and a measuring method, the measuring device is used for measuring the height of a suspension system, the suspension system comprises a swing arm arranged between a bearing structure of a vehicle and a wheel and a bushing arranged at the connecting part of the swing arm and the bearing structure or the wheel, and the bushing comprises a bushing inner ring and a bushing outer ring. The measuring device comprises a sensing unit and a processing unit, the sensing unit is used for acquiring relative rotation information between the lining inner ring and the lining outer ring, and the processing unit can be used for determining first indication information for indicating the height of the suspension system according to the relative rotation information. The suspension height measuring device can be suitable for new energy automobiles such as electric automobiles and hybrid electric automobiles, when the suspension height measuring device is used for measuring the suspension height, a specific support does not need to be designed according to the arrangement mode of the vehicle type and the suspension, adaptation work for the vehicle type and the suspension can be reduced, and the suspension height measuring device has good universality for measuring the suspension height.

The invention relates to a ball joint (10) for a motor vehicle, in particular for a chassis of the motor vehicle, comprising: - a joint housing (1) having a joint opening in which a bearing shell (6) is arranged, - a ball pin (2) having a joint ball (4) and a pin (5), which is mounted with its joint ball (4) in the bearing shell (6) in an articulated manner and which projects with its pin (5) through the joint opening out of the joint housing (1), and - a sensor device for detecting wear, wherein the sensor device has a circuit arrangement (11) which is mechanically actuated by the joint ball (4) and which is arranged within the joint housing (1), wherein the circuit arrangement (11) can be transferred, due to wear, from a basic switching position in which an electrical circuit (21) of the circuit arrangement (11) is closed into at least two further switching positions.

The invention provides automobile suspension damping system test equipment, and relates to the technical field of automobile detection equipment, the automobile suspension damping system test equipment comprises a detection mechanism, the detection mechanism comprises a detection chassis, the top of the detection chassis is fixedly provided with a detection cover plate, the top of the detection cover plate is fixedly provided with a support connecting rod, and an annular detection plate is longitudinally and rotatably installed in the detection chassis. A plurality of arc-shaped obstacle plates are hinged to the top of the annular detection plate, a plurality of arc-shaped adjusting plates are installed at the bottom of the annular detection plate in an arc-shaped sliding mode, supporting connecting rods are hinged to the tops of the arc-shaped adjusting plates, and the other ends of the supporting connecting rods are hinged to the bottoms of the arc-shaped obstacle plates. The detection result is more accordant with the actual situation; the adjusting mechanism can adjust and support the angle of the shock absorber during detection, so that the working states of the detector in different road conditions can be simulated conveniently.