304results about "Vehicle shock testing" patented technology

The invention relates to automobile part testing, and relates to the technical field of an automobile door limiter durability testing device, and the device comprises an adjusting mechanism which comprises a first motor, a first rotating disc, a first sliding groove, a threaded rod, a first piston rod, a first sliding block, a second rotating disc, a second sliding groove and a sliding rod. Through cooperation of structures such as the second rotating disc and the arc-shaped plate, simulation testing of the vehicle door limiter is facilitated, the first motor is started to enable the second rotating disc to rotate continuously through transmission, the arc-shaped plate drives the cantilever to swing in a reciprocating mode, and the state of the limiter during door opening and closing is simulated; the durability cycle test, the motion precision verification and the instantaneous impact load evaluation of the vehicle door limiter are realized, the test automation degree and the simulation precision are improved, the negative pressure generates variable damping force, simulates air resistance, spring pre-tightening force and door closing impact, the durability of the limiter under real stress is tested, and the test effect of the device is improved.

The invention discloses a method for reducing the loss of an automatic driving vehicle collision test device, and the method comprises the following steps: obtaining preset test vehicle parameters which comprise the maximum deceleration amax of an automatic emergency braking system, the test vehicle speed vtest and the communication system delay time t delay; when an emergency braking system of the test vehicle is triggered, emergency avoidance triggering time t triggering is calculated through a formula t triggering = v test / amax + t delay; after position data of the test vehicle and the background target object are collected in real time, the real-time relative distance D is calculated, and the collision time t collision is calculated through a formula t collision = D / v test; and when t collision is less than or equal to t trigger, driving the background target object to move away from the collision direction through the mechanical execution mechanism. Before collision, the target object is actively driven to be away from the collision direction, and structural damage caused by direct collision can be avoided.

An overrunable test vehicle includes a chassis, a wheel operatively attached to the chassis, and a suspension system. The suspension system includes a pivot arm mounted to the chassis about a pivot axis, and the wheel rotatably mounted to the pivot arm. The suspension system also includes a first biasing element having a first spring rate. The first biasing element is partially supported by the chassis and arranged to engage the pivot arm to provide a first suspension force in a first direction about the pivot axis. The suspension system further includes a second biasing element having a second spring rate, different than the first spring rate. The second biasing element is at least partially supported by the chassis and arranged to engage the pivot arm to provide a second suspension force in a second direction about the pivot axis, opposite the first direction.

The invention discloses a collision load reconstruction method and system, relates to the technical field of load identification, and aims to solve the problem that the prediction result of the current load reconstruction method is not accurate enough, and the method comprises the following steps: S1, collecting an excitation signal and a response signal when a vehicle body is laterally impacted, performing multi-mode decomposition on the excitation signal and the response signal by using a variational mode decomposition method; s2, according to Spearman correlation, selecting a modal component with the maximum correlation as an optimal modal signal base to perform noise adding processing; s3, establishing a noise feature library, generating composite noise conforming to actual working conditions, and expanding a training data set on the premise of retaining effective features; s4, constructing a prediction model of deep learning, performing model training by using a dual-loss function, and generating a reconstructed load signal by using the prediction model, and further comprising a corresponding system; the method and the system are suitable for vehicle body lateral collision load reconstruction of the sparse sensor array, and the precision of load reconstruction is high.

The invention relates to the technical field of biomechanical detection and automobile safety evaluation, and discloses an automobile collision dummy abdomen safety test device and method. The testing device comprises a human body feature modeling module which is used for establishing a target population abdomen parameterized model based on statistical analysis, determining a key size design domain covering target population percentile and constructing a target population metrology database; the abdominal mechanical property simulation module is used for obtaining a human tissue relative density distribution function based on the hyperelastic constitutive model, taking the density distribution function as an input parameter for manufacturing a gradient honeycomb structure and simulating human abdominal mechanical properties through relative density gradient distribution in the thickness direction; the multi-mode sensor integration module adopts a distributed intelligent sensing network architecture and is composed of a sensing layer, a transmission layer and a processing layer. By integrating pressure, deformation, acceleration and tissue stress sensors and combining a real-time feedback algorithm, collision parameters are dynamically optimized, and the test precision and the biological fidelity are improved.

The invention discloses an impact resistance test device and method for an energy-absorbing anti-collision structural member, and relates to the technical field of automobile anti-collision members. Comprising a support, a drop hammer mechanism arranged on the support and capable of sliding in the Z direction, a clamp arranged at the bottom of the support and used for clamping a test piece, and a force value sensor arranged below the clamp and used for collecting impact force borne by the test piece. The first displacement detection component is arranged above the test piece and can be used for measuring the concave depth of the upper surface of the test piece, the second displacement detection component is arranged between the test piece and the force value sensor and is used for measuring the convex height of the lower surface of the test piece, and the first displacement detection component can move in the X direction and the Y direction. The first displacement detection component can measure the concave depth of the upper surface of the sample in a multi-point mode, the second displacement detection component can measure the protruding height of the lower surface of the sample, it is ensured that the initial error can be accurately deducted from the displacement variation after impact, and the measurement precision of the upper and lower surface deformation of the sample is improved.

The invention relates to the technical field of automobile testing, in particular to an automobile door lock safety performance testing device for an automobile crash test, which comprises a bottom frame and a sliding block, and further comprises a supporting column, an automobile door mounting assembly, a limiting frame, an air bag assembly, an impact assembly, an electromagnetic accelerator and an inductive switch, the vehicle door mounting assemblies are slidably mounted on the inner sides of the supporting columns, the two limiting frames are symmetrically mounted on the two sides of the bottom frame, the air bag assemblies are mounted on the surfaces of the limiting frames, and the ends of the air bag assemblies extend to the two vehicle door mounting assemblies close to the sides of the limiting frames correspondingly. According to the invention, through a mode of correspondingly adjusting the pressure intensity of the corresponding position in the air bag assembly in the automobile collision test process, the problems that the parts of the test device for installing the hinge and the door knob buckle are easy to deform due to impact and the subsequent test operation is influenced are solved; and the problem that single collision data cannot be accurately acquired due to secondary collision between the impact structure and the vehicle door after collision is solved.

The invention relates to the technical field of collision tests, in particular to a fixed rolling collision test bed which comprises a left supporting rack and a right supporting rack, a collision table top is arranged between the left supporting rack and the right supporting rack, a lifting air cylinder is arranged at the bottom of the collision table top, the left supporting rack and the right supporting rack are the same in structure, and guide transverse rods are arranged on the two supporting racks. Sliding assemblies are in sliding fit with the guide transverse rods, driven transmission mechanisms are arranged on the supporting racks respectively, the driven transmission mechanisms are in transmission connection with the sliding assemblies and drive the sliding assemblies to slide in the front-back direction of the guide transverse rods, the two driven transmission mechanisms are in transmission connection with driving transmission mechanisms respectively, and a rotating shaft is arranged between the two sliding assemblies. The rotating shaft is used for installing a test vehicle, and the end of the rotating shaft is connected with a rotating motor. The problems that the vertical speed of an existing rolling collision test is difficult to control and the repeatability is low are solved.

The invention relates to the technical field of vehicle tests, in particular to a material rigidity obtaining method and device for MPDB honeycomb barrier development. The method comprises the following steps: in a simulation environment, comparing 50% bias force wall collision mechanical response at different speeds with 50% bias vehicle-to-vehicle collision mechanical response at 50km / h to obtain a 50% bias force wall test speed matched with the mechanical response; in a real test environment, a test vehicle is controlled to impact the front face of the force wall at the 50% bias force wall test speed, and impact force-time data output by all force measuring units on the force wall are obtained; obtaining stress-displacement data according to the data processing method; and guiding the material development of the front 50% overlapping movement progressive deformation barrier according to the stress-displacement data. The method can guide the material development of the MPDB honeycomb barrier.

The invention provides an automobile collision human body biomechanical response channel construction method and system. The method specifically comprises the following steps: acquiring test data; aligning the biomechanical time domain signal in the signal loading stage to obtain an alignment signal; performing principal component decomposition on the alignment signal, and extracting a feature value of the alignment signal; based on the human body parameters corresponding to the alignment signals, constructing a prediction model between the feature values of the alignment signals and the human body parameters; inputting the target human body parameter into a prediction model, and predicting to obtain a biomechanical response channel parameter corresponding to the target human body parameter; the biomechanical time domain signals in the signal loading stage are aligned to improve the consistency of the signals, and the aligned signals are subjected to principal component decomposition to reduce the calculation amount. And the prediction model between the feature value of the alignment signal and the human body parameter is constructed to realize automatic prediction to obtain the biomechanical response channel corresponding to the target human body parameter, so that the prediction efficiency is improved on the basis of ensuring the prediction accuracy.

The invention relates to a verification method and device for the explosion safety margin of an automobile safety airbag and a storage medium, and the method comprises the steps: setting the braking force of a braking mechanism of an acceleration type trolley according to a weighted acceleration curve, and simulating the forward impact when an automobile is collided according to the braking force of the braking mechanism; monitoring an explosion signal of a safety air bag controller installed on the acceleration type trolley; and comparing the difference between the air bag ignition time actually collected by the current clamp in different weighted states and the target air bag ignition time, and determining the safety margin of the safety air bag controller meeting the preset maximum calibration condition according to the actual comparison data. According to the embodiment of the invention, the ACU can be installed on the acceleration type trolley to simulate the whole process of vehicle collision, and the simulation of the acceleration of the whole vehicle in a low-speed collision accident of the vehicle is realized, so that the airbag unfolding condition and the safety margin of the ACU in an actual accident are verified, the vehicle collision test requirements are reduced, and the vehicle collision test number is reduced.

The invention discloses an AI modeling-based automobile bumper parameter determination method and system, relates to the technical field of AI modeling, is used for solving the problem of deviation in automobile bumper parameter determination, and selects a distance between an impact point and an automobile door according to an impact angle to calculate a side angle impact score by calling an AI modeling bumper parameter data packet and a confirmation mechanism. A simulated impact experiment is conducted, a diagonal deformation difference value and an extrusion force difference value of the front bumper and the rear bumper are obtained to generate a diagonal response score, a collision angle collision coefficient is obtained in combination with a side angle collision score and marked as side face collision or front face collision, a side face collision label is called, the number is counted, and whether a parameter supplement rule is introduced or not is judged; the maximum deformation and the residual deformation are collected to calculate the deformation recovery rate, a fatigue supplement coefficient is obtained by combining the number of the side impact labels, whether the deformation recovery rate is introduced or not is judged according to the fatigue supplement coefficient, a parameter confirmation mechanism is imported after screening, and intelligent distinguishing of impact modes at different impact angles is achieved.

The invention provides a bumper assembly low-speed collision test system and method, and the system comprises a mobile barrier trolley, a universal rapid installation clamp, a multi-sensor integrated measurement module, and a data collection and processing system, and can adapt to different bumper assemblies to be tested through the universal rapid installation clamp, simulates the real collision process, and improves the test precision. In the process that the traction system drives the movable barrier trolley to move along the track to conduct the collision test, the multi-sensor integrated measurement module can collect collision data and draw a data curve, and the accuracy of the collision test result is improved. And then the data acquisition and processing system scores the maintenance economy, the energy absorption efficiency, the passenger protectiveness and the structural integrity according to the collision data and the data curve, grades the collision test result according to the scoring result, and finally can output a depth test report containing rating and improvement suggestions. The method is used for supporting and improving the design and optimization capability of the bumper assembly.

The invention relates to an automatic driving braking test method and device based on bionic vision and tactile fusion, and the method comprises the steps: obtaining environment information in a current test scene based on visual equipment; simulating a collision process of a current vehicle and an obstacle, and acquiring tactile information corresponding to the collision process based on force feedback equipment; based on the original visual features corresponding to the environment information and the original tactile features corresponding to the tactile information, performing multi-modal feature fusion processing to obtain visual and tactile combined features; predicting vehicle body response information of the current vehicle corresponding to the candidate braking strategy based on the visual and tactile joint features, and obtaining an optimal braking strategy corresponding to the candidate braking strategy based on the vehicle body response information; and generating a braking control signal based on the optimal braking strategy. According to the invention, comprehensive and accurate evaluation of the braking performance of the automatic driving system under the emergency condition is realized.

A battery pack bottom scraping test device disclosed by the present invention comprises a base, a platform, a bottom supporting assembly and a driving assembly, the platform is arranged above the base, the bottom supporting assembly is arranged on the top side of the platform, the bottom supporting assembly comprises a bottom supporting head, the bottom supporting head can be ejected upwards, and the driving assembly is arranged on the bottom supporting head. The bottom supporting head is arranged on the base and used for simulating an obstacle and acting on a battery pack, the driving assembly is arranged between the base and the platform, and the driving assembly is used for driving the platform to move relative to the base so as to achieve displacement adjustment of the bottom supporting head in the height direction, the width direction and the length direction of the platform. The battery pack bottom scraping test device has high operation flexibility, and full-dimension bottom scraping test verification of different positions, different heights and the like can be achieved.

The invention discloses a new energy vehicle bottom battery pack inclined impact test system and method, and the system comprises a new energy vehicle and a track, the bottom of the new energy vehicle is loaded with a battery pack, the new energy vehicle is installed on the track, and the new energy vehicle is configured to be capable of moving along the laying direction of the track; the impact simulation piece is installed on the ejection assembly, the ejection assembly is installed on the track, and the ejection assembly is configured to be capable of releasing the impact simulation piece so that the impact simulation piece can impact the moving battery pack; the adjusting assembly is installed on the track, the ejection assembly is installed on the adjusting assembly, and the adjusting assembly is configured to be capable of adjusting the angle of releasing the impact simulation piece by the ejection assembly; the new energy vehicle, the ejection assembly and the adjusting assembly can simulate the actual working condition of high-speed driving of the vehicle, a real and comprehensive impact test object is provided for the impact simulation piece, the real and effective test result is ensured, and the actual impact resistance of the battery pack can be accurately reflected.

The invention relates to a collision test method and system of a power battery, a vehicle and electronic equipment, and relates to the technical field of battery testing. The method comprises the following steps: carrying out a collision test on a vehicle to obtain an extrusion boundary of a power battery assembled in the vehicle; wherein the extrusion boundary comprises the maximum allowable deformation amount and the maximum allowable deformation speed; and based on the extrusion boundary, performing a collision test on the power battery to determine the safety performance of the power battery. Therefore, the collision test can be carried out on the power battery under a more accurate working condition.

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.

The invention relates to the technical field of automobile testing equipment, and discloses a new energy automobile chassis load testing device which comprises a testing table, a ramp is connected to one side of the surface of the testing table, electric sliding rails are symmetrically installed on the two sides of the testing table, and walking frames are slidably arranged in the electric sliding rails. Telescopic rods are arranged on the two sides, close to each other, of the walking frame, pressure detection mechanisms are arranged at the tops of the two sides of each telescopic rod correspondingly, each pressure detection mechanism comprises a mounting plate, the mounting plates are fixedly connected with the two sides of the corresponding telescopic rod correspondingly, and hanging rods are fixedly mounted on the two sides of the center of the bottom of each mounting plate; the bottom of the hanging rod is hinged to a swing arm, an extension arm is movably installed in the swing arm, and the sides, close to each other, of the extension arm are rotationally connected with a gravity roller, the driving test of various different items can be simulated, continuous running is achieved, the integration degree is high, and the test time is highly saved.

The invention is suitable for the technical field of vehicle part testing, and provides a firmness testing system for new energy automobile part manufacturing, which comprises a protection box, a force storage part and an automobile anti-collision frame, a support frame is fixedly mounted at the top of the force storage part; a rotating part is rotationally arranged on the supporting frame; a pull rope penetrates through the peripheral side surface of the Z-shaped pipe in a sliding manner; an impact ball matched with the conical cover is fixed at one end of the pull rope; the end part of the first L-shaped plate is fixedly connected with a force unloading part; the force unloading part comprises a U-shaped plate; according to the system, an impact ball is launched by inflating and boosting the force storage part to carry out a simulation impact test on the automobile anti-collision frame, the launching angle of the impact ball is adjusted by controlling the rotation of the rotating part, and the launching position of the impact ball is adjusted by controlling the movement of the sliding sleeve. Therefore, impact scenes from different directions in the actual driving process are simulated, the diversity of firmness test data is increased, and the test accuracy is improved.

The invention discloses an automobile collision performance evaluation system based on virtual reality, and relates to the field of data processing, the system comprises an evaluation center, the evaluation center is in communication connection with a model acquisition module, a virtual test module, a virtual evaluation module and a result display module; the model acquisition module is used for acquiring an automobile test model of a target automobile; the virtual test module is used for carrying out a virtual automobile collision test based on the obtained automobile test model and carrying out data acquisition on a corresponding collision test process to obtain corresponding automobile collision data and human body injury data; the virtual evaluation module is used for evaluating the automobile collision performance according to the obtained automobile collision data and human body injury data to obtain a corresponding evaluation result; the result display module is used for taking corresponding performance optimization measures according to the obtained evaluation result and displaying a corresponding collision test process; according to the invention, efficient and accurate evaluation of the collision performance of the automobile is realized.

The invention discloses a test method for a vehicle unlocking function, electronic equipment, a storage medium and a product, and relates to the technical field of vehicles, and the test method for the vehicle unlocking function specifically comprises the steps: determining a target impact parameter, so as to enable a test bench fixed with a test vehicle to execute a target action based on the target impact parameter; controlling the test vehicle to enter a collision mode; and controlling the test vehicle to enter a main power supply cut-off state according to a preset first power-off time point, and detecting a vehicle unlocking result of the test vehicle in the main power supply cut-off state. By adopting the method and the device, the reliability of the unlocking function in an extreme environment can be verified under the condition that the tested vehicle does not need to be actually damaged, so that the cost required by the unlocking function testing process is greatly reduced.

The invention belongs to the field of dummy calibration tools, and discloses a Hybrid III dummy neck calibration tool and a calibration method, and the calibration tool comprises a connection base and a potentiometer support assembly. The connecting base is arranged between the swing arm of the calibration equipment and the near-chest end of the dummy cervical vertebra and has the function of stably connecting the near-chest end of the dummy cervical vertebra with the swing arm, so that the dummy neck can simulate the motion state under the real collision condition in the calibration test process. The fixed support is connected with the connecting base, and the movable support is connected to the near head end of the dummy cervical vertebra and can rotate relative to the fixed support. The angle sensor is installed between the fixed support and the movable support and used for measuring the relative rotation angle between the fixed support and the movable support, and therefore angle data support is provided for a neck calibration test.

The invention relates to the technical field of vehicle testing, in particular to a vehicle inspection well cover bottom scraping testing device and method, a vehicle, a medium and a program.The method comprises the steps that an inspection well cover is fixed to the front of the moving direction of a tested vehicle so as to simulate urban road inspection well cover obstacles; the deviation plate is arranged between a traction system and a brake system of the test vehicle, and a characteristic arc surface is arranged at the front end of the deviation plate and used for guiding the release direction of the traction column; the traction column is arranged on the deviation plate and is connected with a test vehicle through a steel wire rope; the brake system is linked with the traction system and used for controlling a traction column of the traction system to turn over in the direction of the characteristic arc surface at the front end of the deviation plate after the brake system is triggered, so that the steel wire rope is separated towards the two sides. Therefore, the problems of limitation, insufficient tool adaptability, insufficient safety early warning mechanism and the like of simulation verification for bottom scraping and collision in the prior art are solved.

The invention discloses a multi-directional impact testing device for a guide vehicle, and belongs to the technical field of guide vehicle performance testing. Comprising an overturning platform capable of taking the Y direction as a rotating shaft and an impact plate capable of impacting towards the guide vehicle. The guide vehicle in a self-locking state can be vertically placed on the top side of a rotating disc arranged on the overturning platform, and the rotating disc can rotate along a rotating shaft perpendicular to the top side of the rotating disc; the impact plate is connected to the output end of a force application air cylinder, the force application air cylinder is hinged to a mounting base capable of vertically ascending and descending in the Z direction and horizontally moving in the Y direction, the force application air cylinder takes the Y direction as a rotating shaft, a traction block capable of vertically ascending and descending in the Z direction is arranged on the mounting base, and a traction rod is connected to the middle of the traction block and the middle of the force application air cylinder. The two ends of the traction rod are hinged to the traction block and the force application air cylinder correspondingly. According to the multi-directional impact test device for the guide vehicle, multi-angle adjustment of impact test of the guide vehicle can be realized, and the accuracy, the reliability and the efficiency of the test are improved.

The invention belongs to the technical field of dummy detection, and particularly relates to a collision test dummy-oriented calibration full life cycle prediction system, which comprises a data source layer, a data layer, a core layer and an application layer, the data source layer covers dummy calibration full-scene data; the data layer accesses multi-source data through an acquisition and storage module and preprocesses and stores the multi-source data, and a time sequence construction module constructs a time sequence data set according to dummy IDs and component IDs; the core layer completes performance degradation modeling and residual available life prediction based on a multi-model fusion algorithm; and the application layer receives the prediction result, automatically updates a dummy state, pushes a spare part purchasing demand and visually displays the spare part purchasing demand. The problems that dummy calibration management depends on manual operation, and systematic data integration and intelligent analysis means are lacked in the prior art can be solved.

The embodiment of the invention provides a longitudinal modal test method and system for an automobile suspension system, and the method comprises the steps: reducing the friction force between a vehicle and the ground when the vehicle slides forwards, controlling the vehicle to slide forwards, enabling the front ends of two front wheels of the vehicle to be collided, and enabling the vehicle to rebound after being collided; three-way acceleration time domain signals of a shock absorber spring, an auxiliary frame, a steering knuckle and a swing arm after collision are monitored; and according to all the three-way acceleration time domain signals obtained through monitoring, the suspension movement form under the longitudinal modal frequency of the suspension is determined. According to the method, the suspension movement form under the longitudinal modal frequency of the suspension can be obtained, reference can be provided for longitudinal modal frequency avoiding design of subsequent vehicle parts such as the suspension, a power assembly and an auxiliary frame, and therefore the comfort of an automobile under the working conditions such as a rough road surface is improved.

Method (3) for monitoring at least one component (4) of a motor vehicle (1), in which at least one detection value (12) of a detection quantity (14) is detected at several times (10, 11) within a time period by means of at least one sensor element (7) of the motor vehicle (1), which characterizes a mechanical load on the at least one component (4) of the motor vehicle (1), wherein it is determined by means of an electronic computing device (15) whether at least one value (16) of a comparison quantity (17) calculated from at least one of the detection values ​​(12) and / or assigned to at least one of the detection values ​​(12), which characterizes a mechanical stress (17a) of the component (4) accumulated over the time period, deviates from a reference value (19) by more than a predetermined amount (18), characterized in thatthat the respective measurement value (12) of the measurement quantity (14) detected by means of the sensor element (7) is assigned to one of a number of values ​​(16a, 16b, 16c) of the comparison quantity (17) and it is determined by means of the electronic computing device (15) whether the respective value (16a, 16b, 16c) of the comparison quantity (17) deviates from a respective reference value (19a, 19b, 19c) by more than the specified amount (18).

A description is given of a braking apparatus system (14, 18, 22) for a test pendulum arrangement (2) for carrying out crash test dummy certifications, having a braking apparatus (14, 18, 22) for braking a moving pendulum (4), on which a head / neck assembly (10) of a crash test dummy can be arranged, in a lower braking range (B), wherein the braking apparatus (14) has a plunger (30) which can be axially actuated by means of a motor arrangement (32) and is designed to come to rest with the pendulum (4) in a defined braking range (B) and to brake the pendulum (4) by means of a braking force (FB) exerted using the plunger (30). A description is also given of a test pendulum arrangement (2) and a method for operating a test pendulum arrangement (2).

The present invention relates to the field of automobile testing technology, and relates to a method for determining a dynamic limit load coefficient of a vehicle based on a suspension system. The method comprises the following steps: modifying a vehicle to a set degree so that wheel friction marks are displayed when the vehicle is dynamically tested under extreme road conditions, marking corresponding modified areas, and obtaining the marked marks of the vehicle after the dynamic test under extreme road conditions; visualizing the marked marks of the vehicle, and processing the vehicle to a set degree so that the tires of the vehicle are in contact with the marked marks of the vehicle, and the relative geometric trajectories of the tires and the vehicle remain consistent, and measuring to obtain a static measurement value; calculating the static measurement value through a suspension disturbance comparison algorithm to obtain a buffer block compression amount and a spring compression amount, combining the buffer block compression amount and the spring compression amount, and performing reverse calculation through a first setting formula, a second setting formula, and a third setting formula to obtain the vehicle limit load coefficient.