21 results about "Crash test" patented technology

The invention relates to a system (100) for optimizing the configuration of crash tests and simulations for vehicle development. The system (100) comprises a data preparation module (200) that splits a data set (210) containing crash test and simulation data into a first training data set (210), a validation data set (230), and a test data set (240); a training module (300) with a first AI model (350) for creating configurations of physical crash tests and virtual simulations, wherein the first AI model (350) is trained with the first training data set (220); and a data value module (400) that calculates data values ​​(φ(i)) for the data points (i) of the crash test and simulation data of the training data set (220) with respect to the validation data set (230).a model optimization module (500) comprising a second AI model (550) and a training data generator (570), wherein the training data generator (570) creates a second training data set (580) which is used to train the second AI model (550) to predict the relationship between input parameters (p) and the computed data values ​​(φ(i)); a parameter module (700) which uses the trained second AI model (550) to find crash test parameters with a maximum data value (φ(i)).

The present invention relates to a method and device for generating augmented reality graphic content representing a vehicle crash test. To this end, initial data representing a three-dimensional video sequence of a vehicle crash test involving a crash dummy are received (31). A digital twin is selected (32) from a plurality of digital twins, each digital twin of the plurality of digital twins being representative of a three-dimensional model of a dummy representing a person with a specific morphology.The augmented reality graphic content is generated (34) from the first and second data received (33) and corresponds to a three-dimensional model of the mannequin associated with the selected digital twin by replacing the mannequin in the three-dimensional video sequence with the three-dimensional model of the mannequin associated with the selected digital twin. Figure for the abstract: Figure 3.

This utility model discloses a strength testing device, including a fixing fixture, a first force sensor, and a second force sensor. The fixing fixture is used to fix the test piece, the first force sensor is used to measure the load on the test piece in a first direction, and the second force sensor is connected to a force application device to measure the load on the test piece in a second direction. The first and second directions intersect, and the fixing fixture is disposed within the angle region between the first and second directions. This strength testing device can perform crash tests on subframes and other test pieces, and can simultaneously acquire loads in both the X and Y directions during the test, thereby providing effective data support for subsequent vehicle design verification.

This utility model discloses a tooling for testing automotive anti-collision beams, including a base plate. A fixing plate is mounted on the top center of the base plate, and fixing seats are mounted on the front and rear ends of both sides of the fixing plate. The anti-collision beam body is fixedly connected to the inner side of the fixing seats. Adjustment mechanisms are provided on the bottom sides of the fixing plate to adjust the synchronous separation or opposite movement of the fixing seats. This utility model, through its reasonable structural design and the coordinated work of its components, provides multiple beneficial effects for automotive anti-collision beam testing. Its stable support and fixing structure ensures the accuracy of the testing. The reinforcing plate enhances the connection stability between the fixing plate and the base plate. The vertical limiting achieved by the hydraulic rod driving the pressure plate, combined with the lateral positioning of the energy-absorbing plate, effectively prevents the anti-collision beam from tilting or shifting during impact testing, making the test data more realistic and reliable, and providing accurate basis for evaluating the quality, strength, and other performance characteristics of the anti-collision beam.

The utility model discloses an unmanned plane test flight platform, through the design of first safety rope and second safety rope, the flight range of unmanned plane is limited from two directions of up and down, under normal control test, two safety ropes will not interfere with the flight of unmanned plane, when unmanned plane appears misoperation or out of control condition, first safety rope cooperates counterweight and limit ring, can ensure that unmanned plane down falls and does not hit test base, second safety rope cooperates with ground anchor, can prevent unmanned plane from moving up and colliding with truss. This double protection mechanism greatly reduces the risk of falling or collision damage of unmanned plane in the test process due to misoperation or out of control, reduces the economic loss caused by test failure, provides reliable guarantee for the pre-test of batch production of unmanned plane, and helps to improve the stability and economic benefit of the whole production process.

The invention relates to a system (100) for optimizing a machine learning model for predicting crash test results for vehicle development. The system (100) comprises a data preparation module (200) that splits a data set (210) containing crash test and simulation data into a first training data set (220), a validation data set (230), and a test data set (240); a training module (300) with an AI model (350) for predicting crash test results, wherein the AI ​​model (350) is trained with the first training data set (220); and a data value module (400) that calculates data values ​​(φ(i)) for the data points (i) of the crash test and simulation data of the training data set (220) with respect to the validation data set (230).a data cleaning module (500) trained to identify and remove training data points (i) with a low impact on the prediction accuracy of the AI ​​model (350), wherein the data cleaning module (500) uses the computed data values ​​(φ(i)) to determine the least valuable data points (i) and to create a second training data set (520), and wherein the second training data set (520) is subsequently used to train the AI ​​model (350) to create a modified AI model (370).

The utility model relates to heating pad detection technical field discloses a kind of heating pad impact test device, including fixing frame, the front end of the fixing frame is provided with clamping mechanism, the clamping mechanism includes placement frame, the lower end of the both sides outer wall of placement frame is rotatably connected with first pulley, the both sides of placement frame front end outer wall are fixedly connected with positioning guide rail, the outer wall of positioning guide rail is slidably connected with positioning plate, the both sides of the outer wall of positioning plate rear end are fixedly connected with first guide block, the center of the upper surface of placement frame is fixedly connected with transmission module, the input end of transmission module is fixedly connected with servo motor. In the utility model, the device structure is simple, and user can place heating pad on positioning plate more conveniently, and install limit by limiting strip on lifting plate, by reducing complex mechanical structure, so that operation process is more intuitive, easy to grasp, and operation difficulty is reduced.

The utility model discloses a kind of fuel tank strength testing devices, belong to strength test field. Including clamping assembly, the clamping assembly includes frame base, limit strip is installed on two side edge positions of frame base, positioning part is installed between two groups of limit strip, clamping part is installed between two groups of limit strip, drive part is provided at the bottom of frame base;Test component, test component is used to impact test to the side edge of fuel tank;Limiting component, limiting component includes the shielding part for covering test area, fixed part is installed on the shielding part for clamping fuel tank, and the pressing part for pressing fuel tank is connected on the shielding part. A kind of fuel tank strength testing device of the application, by clamping, test, limiting component cooperation, positioning part is firmly clamped fuel tank from multidirectional, test component controls impact parameter, all-around limit displacement, impact point precision is kept, data accuracy is proposed.

This invention discloses a constrained free-fall type fragile cover impact test system and method, belonging to the field of mechanical equipment performance testing. It includes: a support base to ensure the guide frame is perpendicular to the ground; an impact projectile suspended within the guide frame, with an adjustable height; the guide frame connected to the fragile cover by fasteners, simulating the constraint and guidance of the launch box / tube on the impact projectile, allowing the projectile to impact the fragile cover in free fall without jamming or eccentricity; and a sensor for measuring the impact force. This invention replaces the constraint and guidance of the launch box (tube) on the projectile with the constraint and guidance of the guide frame, utilizes the principle of free fall to represent the velocity of the projectile impacting the fragile cover, and measures the impact force that breaks the fragile cover using a sensor. The structure is simple, significantly reducing testing costs; it offers good guidance and centering accuracy, preventing projectile eccentricity and accurately simulating actual working conditions; the fragile cover is easy to assemble and disassemble, resulting in high testing efficiency.

This utility model discloses an impact testing structure for axle housings of new energy vehicles, including a test platform with a test bracket. The test platform is equipped with an axle limiting clamping device and a striking device. A scanning detection device is mounted on the test bracket. This utility model relates to the field of new energy vehicle testing technology. It adopts a horizontal-vertical dual-axis drive architecture. The horizontal angle drive motor drives the angle cylindrical block to achieve horizontal rotation, while the vertical angle drive motor drives the telescopic cylindrical block to complete vertical swing through gear meshing. Combined with the angle ball of the ball joint structure and the connecting flange, it can accurately simulate the spatial posture of the axle under complex working conditions. When the angle ball rotates, the limiting electromagnet and limiting magnet inside the ball arc groove form a non-contact force field to absorb impact energy. The neodymium iron boron magnet array of the buffer sector groove and sector slider further disperses stress, reducing mechanical wear and significantly improving equipment durability.

The utility model discloses a lower limbs structure of dummy for blasting test, including shank assembly, the shank assembly is including with the knee joint connecting piece that links with knee assembly, with the ankle joint connecting piece that links with foot assembly and is located between the tibial skeleton of knee joint connecting piece and ankle joint connecting piece, be equipped with shank sensor group for gathering shank stress or / and movement data on tibial skeleton skeleton, tibial skeleton vertical arrangement, and the first pivot center of knee joint connecting piece with second pivot center of ankle joint connecting piece all are located on the line of coincidence with the central axis of tibial skeleton. The lower limbs structure of the utility model ensures that the vertical impact force in the blasting test can be along the central axis of tibial skeleton skeleton high -efficient, directly transmit, and shank sensor group can accurately capture shank axial stress data, and at the same time meet the special working condition requirement that lower limbs keep the upright posture in the blasting test.

The utility model discloses a helmet anti -collision test mechanism belongs to helmet detection technical field. Including base station, a plurality of struts are fixedly connected on the base station, the top of struts is fixedly connected with the top frame, and the outer surface of two struts of same side is sleeved with the support plate, and one side of one support plate is fixedly connected with the first electromagnet disc, the inside of top frame is provided with the tow rope, one end of tow rope is fixedly connected with the test cone, through the utility model, the staff to the first electromagnet disc power off, and the first electromagnet disc loses magnetism, and then the test cone is separated from the first electromagnet disc, and the test cone falls from the side, and the test cone is in the swing state, can impact the side of helmet, thereby the side of helmet is impacted and is tested, and the servo motor can drive the chassis to rotate, thereby control model rotates, and then when the side impact test is carried out, the test cone can impact the side of helmet and detect the different positions of helmet, and the accuracy of test result is greatly improved.

The invention relates to a system (100) for optimizing a machine learning model for predicting crash test results for vehicle development. The system (100) comprises a data preparation module (200) that splits a data set (210) containing crash test and simulation data into a first training data set (220), a validation data set (230), and a test data set (240); a training module (300) with an AI model (350) for predicting crash test results, wherein the AI ​​model (350) is trained using the first training data set (220); and a data value module (400) that calculates data values ​​(φ(i)) for the data points (i) of the crash test and simulation data of the training data set (220) with respect to the validation data set (230).a data cleaning module (500) trained to identify and remove training data points (i) with a low impact on the prediction accuracy of the AI ​​model (350), wherein the data cleaning module (500) uses the computed data values ​​(φ(i)) to determine the least valuable data points (i) and to create a second training data set (520), and wherein the second training data set (520) is subsequently used to train the AI ​​model (350) to create a modified AI model (370).

The application provides a data analysis method and device and electronic equipment, and relates to the technical field of data processing.In the application, first, a crash test data set for stress testing of multiple measured baseboard management controllers (BMC) is acquired; then, based on a data level to which each crash test data in the crash test data set belongs, a target analysis rule corresponding to the data level is selected from an analysis rule set, and each crash test data is analyzed based on the target analysis rule to obtain each target analysis data; finally, each target analysis data is iteratively analyzed, and an analysis result corresponding to each target analysis data is output. In this way, a large amount of crash test data generated by BMC failure can be automatically collected, and the analysis rate of the crash test data is improved.

This invention relates to the field of automotive crash testing technology, and in particular to an automotive crash testing apparatus and system. The automotive crash testing apparatus includes a base, a rigid barrier block, and a rotation positioning assembly. The base is fixed to the crash testing site. The rigid barrier block is mounted on the base via the rotation positioning assembly, which is configured to allow the rigid barrier block to rotate on the base and to fix the rigid barrier block after rotation. By using the rotation positioning assembly to mount the rigid barrier block on the base in a rotatable manner and lockable after rotating a preset angle, the angle of the rigid barrier block can be flexibly adjusted, significantly improving the versatility and adaptability of the automotive crash testing apparatus.

The application discloses a kind of test vehicle-mounted brake equipment, which comprises vehicle-mounted brake host computer, brake receiver and brake remote controller, host computer includes output interface, input interface, pressure storage tank, main control board and other core components, receiver is equipped with double antenna head, state indicator light and buzzer, remote controller is provided with anti-misoperation shield and double antenna module.Equipment is compatible with collision data acquisition equipment mounting hole, supports automatic pressure building, pressure relief process, can trigger brake through strip trigger, remote control, acceleration value multi-mode, and built-in backup battery guarantees continuous operation.The application is convenient to install, easy to operate, stable and efficient, effectively saves the space in the car, improves test safety and emergency response speed, suitable for various automobile crash test scene, with wide popularization and application value.

The utility model discloses a kind of automobile bumper collision test bench devices, the device includes installation platform, the upper surface of the installation platform is provided with impact adjustment mechanism, the impact adjustment mechanism includes impact component, adjustment component and positioning component, the inside of the adjustment component is provided with bumper, to adjust the impact angle of bumper, the positioning component clamps the bumper, the impact direction of the impact component is towards bumper, to impact bumper. The present application can guarantee the stable clamping during bumper collision test process, avoid clamping loose to affect test data, can realize the flexible adjustment of bumper impact angle, collect multi-angle collision data, improve the comprehensiveness of test, support diversified collision scene simulation, adapt to different collision needs, facilitate to observe the deformation effect of bumper after collision, improve the convenience of test data acquisition and device practicality.