72 results about "Vehicle engineering" patented technology

This application provides a method, system, equipment, and medium for evaluating the first-order ride comfort of a vehicle, belonging to the field of vehicle engineering and testing technology. The evaluation method includes: acquiring gyroscope signals and triaxial vibration acceleration signals at each measuring point of the vehicle at at least two vehicle speeds on various test roads, including at least long-wave impact surfaces and short-wave disturbance surfaces; processing the gyroscope signals to obtain attitude evaluation parameters characterizing the amplitude of the vehicle's first-order motion; performing frequency domain analysis on the triaxial vibration acceleration signals to obtain vibration evaluation parameters characterizing the abruptness of the vehicle's first-order motion; and evaluating the first-order ride comfort of the vehicle based on the attitude evaluation parameters and vibration evaluation parameters to obtain the evaluation results. This application achieves the separation and quantification of the amplitude and texture of the vehicle's first-order rigid body motions such as pitch, roll, and vertical sway, providing comprehensive and accurate evaluation results that effectively support subjective evaluation and chassis tuning.

The application discloses a differential power switching mechanism, a differential and a vehicle, and belongs to the technical field of vehicle engineering. The differential power switching mechanism comprises a joint member, which is provided with a first joint part and a second joint part, and the joint member has a first working position, a second working position and a third working position arranged along a moving direction; a driving mechanism is in transmission connection with the joint member; wherein in the first working position, the first joint part is kept disengaged from the planet carrier, and the second joint part is kept disengaged from the half shaft gear; in the second working position, the first joint part is engaged with the planet carrier, and the second joint part is kept disengaged from the half shaft gear; and in the third working position, the first joint part is engaged with the planet carrier, and the second joint part is engaged with the half shaft gear. The differential power switching mechanism, the differential and the vehicle provided by the application can realize three functions of disconnection, differential and locking, and have simple structure and convenient control.

This invention relates to the field of vehicle engineering technology, specifically to a method and system for dynamically calibrating motion sickness comfort thresholds for electric passenger vehicles. The method involves acquiring individual occupant information, including physiological parameters and motion sickness susceptibility parameters, and generating an individual feature dataset based on this information; collecting vehicle motion parameters; calculating a dynamic threshold by determining a baseline threshold based on the current driving conditions, calculating a comprehensive correction coefficient using a preset correction model combined with the individual feature dataset, and calculating the current occupant's dynamic motion sickness comfort threshold based on the baseline threshold and the comprehensive correction coefficient; comparing the vehicle motion parameters with the dynamic motion sickness comfort threshold, and outputting a warning signal or executing vehicle control operations when the real-time motion parameters exceed the dynamic motion sickness comfort threshold. This technical solution enables accurate, personalized, and multi-scenario adaptable motion sickness comfort threshold calibration.

The application discloses a high-strength integral type yuanbao beam, a vehicle frame assembly and a vehicle, and belongs to the technical field of vehicle engineering, wherein the yuanbao beam comprises two support bodies; and a connecting member, two ends of the connecting member are respectively welded to the two support bodies to form an integral structure. The application enhances the local support strength of the vehicle frame at the battery frame, effectively improves the structural mode of the region, and makes the region avoid the resonance frequency interval generated by tire operation and a power system, so that the problem of vehicle shaking caused by the rear battery load of a new energy heavy truck is fundamentally solved.

The utility model relates to the field of vehicle engineering, proposes a kind of vehicle generator battery power supply system, including mounting seat, the upper surface of mounting seat is fixedly connected with integrated box, the front of integrated box and the back of integrated box are both provided with heat dissipation opening. The device generates electricity by generator body, can provide power for battery body, while voltage stabilizer starts to work, adjusts the output voltage of generator body, so that it is charged in certain range to battery, then using charging controller, the state of battery body is monitored in real time, and charging parameter is intelligently adjusted, can prevent generator output voltage too high or too low, the working temperature of battery body is monitored by temperature sensor when charging, when temperature rises to a certain degree, can automatically start drive seat to drive cooling fan to rotate, cooperate with heat-conducting paste layer, heat-conducting plate and radiating fin, accelerate the heat dissipation process, reduce system temperature, it is very practical.

The utility model relates to a self-checking type rear -view mirror air curtain rainproof defogging device belongs to vehicle engineering and automobile safety technical field. Including casing assembly and reflector, still including detection sensor module, gas source module, air curtain nozzle module, control module and manual switch, casing assembly includes outer casing, inner casing and frame, the clearance between outer casing and inner casing is separated and forms upper chamber and lower chamber through partition, detection sensor module is fixed with inner casing and is connected with outside, gas source module includes micro -pump, electromagnetic valve, air blower and gas path, air curtain nozzle module includes long slit nozzle and micro -type rudder, micro -type rudder is switched the working posture of long slit nozzle through angle adjustment, long slit nozzle is fixed with the upper edge of frame in the top of reflector and is connected with micro -pump through air pipe. Advantages: have automatic rainy day rainproof and manual defogging dewdrop's dual working mode, give consideration to low noise, low energy consumption.

The utility model relates to railway vehicle engineering technical field more specifically, especially, especially relates to a multipurpose four axle combined type railway locomotive bogie, include: traction seat, bogie frame, crossbeam, the bogie frame sets up in the both ends of traction seat, and crossbeam fixedly set up in the middle position of bogie frame body, secondary suspension spring is installed in the top of crossbeam, and secondary oil pressure shock absorber is installed on the outer wall of bogie frame both sides, and one end of secondary oil pressure shock absorber is movably connected with bogie frame, the utility model discloses the improvement of multipurpose four axle combined type railway locomotive bogie has good strength, long life, safe and reliable, high efficiency, can guarantee the high -efficient work of more safe and stable, most parts can also realize the commonality with the currently large -scale use locomotive, to save the advantage of use cost, thereby effectively solve the problem and the deficiency in prior art and equipment.

The application discloses a kind of drive steering redundancy control methods of linear control independent steering cross drive steering, belong to vehicle engineering technical field, comprising the following steps: S1: steering angle dynamics analysis is carried out to each angle module wheel, and wheel rotation angle estimated value is calculated;S2: according to wheel rotation angle estimated value, in combination with steering detection angle of kingpin steering gear, steering abnormal angle module with abnormal steering function is screened;S3: for steering abnormal angle module, according to rotation angle estimated value, in combination with steering detection angle of kingpin steering gear, wheel rotation angle measurement value is confirmed;then according to wheel rotation angle measurement value, the fault angle module of kingpin steering gear failure is screened;S4: for fault angle module, determine fault type;S5: according to fault type, re-allocate the wheel driving torque and wheel rotation angle of each angle module, obtain the target wheel driving torque and target wheel rotation angle of each angle module.The application can control vehicle normal driving when kingpin steering gear fails.

The present application relates to the technical field of vehicle engineering, in particular to a kind of active suspension vehicle roll angle measurement and calculation method, by collecting vehicle body roll angular velocity, lateral acceleration and the change of four suspensions' suspension height, and according to lateral acceleration, four suspensions' suspension height change respectively calculates tire deformation and the steady-state roll angle contributed at wheel center, linearly superimposes two steady-state roll angles to obtain the steady-state roll angle of vehicle as a whole, again the vehicle roll angular velocity after filtering is integrated into transient roll angle, finally, the correction degree of steady-state roll angle to transient integral result is adjusted by weight coefficient, and the vehicle roll angle with strong real-time performance and high robustness is fused and calculated, the technical problems that the existing technology exists, such as inaccurate roll angle acquisition, large calculation deviation caused by vehicle load change and suspension nonlinear characteristics, and pure integral calculation prone to drift are solved.

The application discloses a vehicle-mounted camera anomaly detection method and device, equipment and a storage medium, relates to the field of vehicle engineering, and is applied to a target cloud and comprises the following steps: sending an anomaly detection instruction to a target vehicle terminal of a target vehicle based on a preset trigger condition to obtain a target media file; analyzing a target statistical characteristic of the target media file to obtain a first analysis result, determining a target detection model based on a target camera corresponding to the target media file, and performing reference area checking on the target media file by using the target detection model to obtain a corresponding second analysis result; determining a first confidence degree corresponding to the first analysis result and a second confidence degree corresponding to the second analysis result by using a target confidence degree algorithm, and fusing the first analysis result and the second analysis result based on the first confidence degree and the second confidence degree to obtain an anomaly detection result corresponding to the target camera. The application improves the accuracy and efficiency of vehicle-mounted camera anomaly detection.

The utility model provides a container transport semitrailer side guardrail relates to vehicle engineering field, the utility model discloses side guardrail main part, the utility model discloses when using when the side guardrail main part is installed in the chassis both sides of semitrailer through mounting frame contact bolt installs the water tank and oil tank etc. part installed to its side protection, if the side guardrail main part collides or scratches with other objects, will preferentially collide and scratch to the anti -collision net board, pushes to one end, drives piston rod to slide in the air cylinder inner wall one end, extrudes its inside air into the air bag inside, makes its air bag collision, the one side of anti -collision net board is buffered, and if a plurality of damper also will be buffered between support and anti -collision net board, to this to slow down the impact intensity and scratch situation that receives, to this avoids the side guardrail main part directly stressed and produces the possibility of deformation, weld point drop and even component fracture, improves the service life of side guardrail main part, reduces the frequency and cost of maintenance replacement.

The application discloses a kind of vehicle domestic water supply system and water supply method, belong to vehicle engineering technical field, wherein system includes water storage tank, for storing domestic water, the water storage tank is configured with active heating element;Water faucet is set to water end;Water supply pipeline connects the water storage tank with the water faucet;And power component is set on the water supply pipeline, for driving water flow between the water storage tank and the water faucet flow;Wherein, winter water mode, according to the water temperature condition in water storage tank active heating element is opened, and after water is used, power component empties the stored water in the water supply pipeline and flows back to the water storage tank.In the present application, by integrating active heating and dynamic emptying logic, the freezing paralysis problem of vehicle-mounted waterway in extremely low temperature environment is completely solved, and the instant availability and hardware security of the system in subzero environment are guaranteed.

This invention belongs to the field of vehicle engineering technology, specifically relating to a vehicle engineering tie rod with a refueling tank. It includes a tie rod body, a mounting body, a clamping frame, a refueling tank body, a pump, and an oil outlet pipe. The top of the refueling tank body is connected to an oil delivery pipe, which contains a dustproof mechanism to prevent dust from entering during the oil injection process. A layered plate is fixedly connected inside the refueling tank body. The pump is installed at the bottom of the refueling tank body, and its output end is connected to the oil outlet pipe, which is located inside the tie rod body. This invention solves the problem of traditional tie rods requiring frequent lubrication.

The application provides a working condition reproduction method for regional scene adaptability, relates to the technical field of vehicle engineering, and comprises the following steps: constructing a multi-dimensional second regional working condition database based on first regional working condition data; the first regional working condition data is data of an environment in which a target object is located; performing clustering and screening based on first regional test data and the second regional working condition database to obtain a target second regional working condition database; the first regional test data is data obtained by performing vehicle testing based on the first regional working condition data; performing vehicle testing based on the target second regional working condition database to obtain second regional test data; performing standard verification on the second regional test data to obtain a verification result; and the standard verification is performed based on a verification standard of the target object. The application solves the problem that there is a lack of working condition reproduction technology for target object working conditions in the existing vehicle engineering field by using the above method.

The utility model relates to the technical field of vehicle engineering, in particular to a doorsill beam structure and a vehicle body structure. The doorsill beam structure comprises a cross beam formed by rolling a rolling plate, and the cross beam is provided with at least two energy absorption cavities and isolation plates located between the adjacent energy absorption cavities; the first end of the rolling plate is bent to form a first guide edge, the first guide edge is located in one of the energy absorption cavities and abuts against the isolation plate, and the second end of the rolling plate is the end, away from the first guide edge, of the isolation plate. The second end is bent towards the energy absorption cavity where the first guide edge is located to form a second guide edge. Therefore, the cross beam formed by winding the roller plate has rigidity and structural stability and is used for supporting a vehicle body structure. When the cross beam is collided, the first guide edge and the second guide edge curl or move towards the corresponding energy absorption cavities, and the threshold beam structure has a better energy absorption effect in cooperation with the energy absorption effect of the energy absorption cavities.

This invention belongs to the field of vehicle engineering technology, specifically relating to a front wheel arch assembly and front compartment structure for a non-load-bearing body. The aforementioned front wheel arch assembly includes two symmetrically arranged front wheel arch units. Each front wheel arch unit includes a fender inner panel assembly, a wheel arch upper side beam assembly, and a pillar. The fender inner panel assembly is located on the outside of the wheel arch upper side beam assembly in the left-right direction of the body. The front ends of both the fender inner panel assembly and the wheel arch upper side beam assembly are fixedly connected to the pillar. The rear ends of both the fender inner panel assembly and the wheel arch upper side beam assembly are fixedly connected to the A-pillar of the body. The pillar is fixedly connected to the front crossbeam assembly of the body. By setting the pillar, the fender inner panel assembly, and the wheel arch upper side beam assembly, the front compartment structure of the non-load-bearing body equipped with the front wheel arch assembly of this invention can form two collision force transmission channels in the front-rear direction on both the left and right sides.

This utility model relates to the field of component testing technology and discloses a shock absorber performance testing device for vehicle engineering. It includes a base plate, with multiple base columns fixedly connected to the top of the base plate. A vibration mechanism is installed on the top of the base plate. A support plate is fixedly connected to the top of the multiple base columns. Two support columns are fixedly connected to the top of the support plate. A top plate is fixedly connected to the outside of the two support columns. A lifting mechanism is installed on the top of the top plate. A shock absorber is detachably connected inside the lifting mechanism. The vibration mechanism includes two protective boxes, and two fixing plates are fixedly connected to the top of the base plate. This utility model aims to simulate the vibration effect of a car during operation. Furthermore, the drive speed of the motor can be controlled to control the vibration frequency generated by the vibration mechanism to simulate the operation of a car under different road conditions.

This invention discloses a secondary instrument cluster assembly and a vehicle, relating to the field of vehicle engineering technology. The secondary instrument cluster assembly includes a secondary instrument cluster body and a cup holder assembly. The secondary instrument cluster body forms a first storage space and a mounting cavity with at least an upper opening. The cup holder assembly is disposed in the mounting cavity and is located above the first storage space. A second storage space is defined between the bottom of the cup holder assembly and the bottom of the mounting cavity. The secondary instrument cluster assembly also includes a tray storage space located at the front of the mounting cavity and a third storage space located at the rear of the mounting cavity. Both the tray storage space and the third storage space are positioned above the first storage space. The secondary instrument cluster body also forms a fourth storage space, which is arranged opposite to the first storage space in the front-rear direction and is located behind the first storage space. This invention employs a multi-space layout, effectively balancing functional practicality and space utilization, providing passengers with a more comfortable driving experience.

The application discloses a slope auxiliary driving control method, device and equipment of a heavy haul train and a storage medium, relates to the technical field of intelligent transportation and vehicle engineering, and comprises the following steps: analyzing train attributes, a running line and running environment information of the heavy haul train to obtain line slope, slope length information, speed limit information and slope distribution position data; according to the data, a multi-objective optimization model containing a fail-safe function, a smoothness function and an energy consumption function is constructed; according to the line slope, the multi-objective optimization model is solved by using a hybrid multi-objective optimization algorithm based on a non-dominated sorting genetic algorithm, a multi-objective cuckoo search mechanism and a Gaussian disturbance strategy to obtain train control parameters; and the heavy haul train is subjected to auxiliary driving control according to the train control parameters and the speed limit information. The application realizes safe, smooth and energy-saving multi-objective optimization intelligent auxiliary driving control for the long and large slope running scene of the heavy haul train.

Disclosed are a shock absorber performance testing device and method for vehicle engineering. The device includes a box body and a box door, where a U-shaped frame is fixedly connected to a bottom of the box body, a motor is fixedly connected to a bottom of the U-shaped frame, a rotating disk is fixedly connected to an output end of the motor, a moving block is connected to the rotating disk by a guide mechanism, two first connecting blocks symmetrically arranged are fixedly connected to a bottom of the moving block, two second connecting blocks symmetrically arranged are fixedly connected to a top of the rotating disk, and insertion holes are formed on side walls of the first and second connecting block. The present invention facilitates continuous multiple impact tests and adjusts the frequency and amplitude of the impact, thereby making the test more convenient and achieving better test results.

A front-end energy absorption structure for a rail vehicle, relating to the technical field of vehicle engineering. In the front-end energy absorption structure for a rail vehicle, a coupler mounting seat is longitudinally arranged on the front side of a main frame, and is slidably connected to the main frame along the longitudinal direction. Energy absorption devices and a coupler guide device are both longitudinally fixed between the coupler mounting seat and the main frame. The coupler mounting seat comprises a main seat body. The middle portion of the main seat body in a horizontal direction is a main connection portion, which has a thickness greater than that of two sides of the main seat body. A center hole passes through the center of the main connection portion along the longitudinal direction, and the center hole is communicated with the coupler guide device. The periphery of the main connection portion located at the center hole is configured to be connected to a coupler assembly. On the main seat body, the part directly connected to the coupler assembly is a high-stress zone compared to the parts at other positions; the structural requirements for connecting the coupler assembly are met by means of the thicker main connection portion, and the remaining parts undergo weight reduction, thereby improving the lightweight effect of the front-end energy absorption structure, while ensuring structural stability.

The application belongs to the field of structural reliability analysis and uncertainty quantification, and specifically discloses an active learning reliability analysis method based on spectral normalized Gaussian process, which comprises the following steps: generating a Monte Carlo sample set according to a joint probability density function of random variables; then constructing an initial training data set and a spectral normalized Gaussian process (SNGP) surrogate model of a structural performance function; predicting the Monte Carlo sample set by using the surrogate model, estimating a system failure probability and screening a candidate sample pool; judging whether the model converges and whether the system failure probability meets the accuracy requirement according to the prediction result; if yes, outputting the surrogate model and the system failure probability estimation result, and completing the analysis. The application can significantly reduce the number of calls to the original calculation model in complex high-dimensional nonlinear reliability analysis, greatly improve the analysis efficiency while ensuring the accuracy, and is suitable for reliability analysis and design optimization of high-dimensional strong nonlinear systems in the fields of aerospace, vehicle engineering and the like.

This invention proposes a magnetorheological-pneumatic coordinated braking system, control method, and vehicle, belonging to the field of vehicle engineering. The system includes: a brake pedal for generating a braking request signal; an electronic control unit (ECU) electrically connected to the brake pedal, receiving the braking request signal and vehicle status signals and sending control commands; a magnetorheological braking unit electrically connected to the ECU for generating braking force; a pneumatic eddy current braking unit electrically connected to the ECU, creating controllable turbulence behind the wheel hub to generate reverse aerodynamic drag; and an energy recovery unit connected to the ECU and the vehicle's drive motor, which, upon receiving commands from the ECU, converts the vehicle's kinetic energy into electrical energy for recovery and generates regenerative braking force. This invention, through the integration and synergy of magnetorheological, pneumatic, and energy recovery technologies, solves the technical problems of slow response, low control precision, single energy recovery method, and poor environmental adaptability in existing braking systems, thereby improving the braking safety and reliability of vehicles.

1. Name of this design: Air intake grille (Armored vehicle engineering). 2. Purpose of this design: For use as an air intake grille in vehicles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application provides a kind of transmission and vehicle, it is related to vehicle engineering technical field.The transmission is constituted by front sub-gearbox assembly, main gearbox assembly and rear sub-gearbox assembly: front sub-gearbox adopts double input shaft structure, it is favorable to realize working condition adaptive load distribution;Main gearbox and rear sub-gearbox are collaboratively built multidimensional speed ratio matrix, significantly widen total speed ratio range and speed ratio span under the premise of not increasing gear number;Three box function decoupling: front sub-gearbox is responsible for power adaptation, main gearbox bears core gear shifting, rear sub-gearbox executes final ratio adjustment.Each box body integrated modular design, respectively optimize support lubrication system, axial force balance mechanism and electro-hydraulic actuator.The whole machine realizes the unity of high power density, wide speed ratio adaptability (covering start traction to overspeed cruising) and high gear shifting smoothness in compact space.

The application relates to an AI-enabled data-driven simulation correction and fault prediction method, belonging to the technical field of vehicle engineering. The method comprises the following steps: obtaining computer-aided engineering historical simulation data, constructing a multi-task artificial intelligence prediction architecture, combining a transfer learning mechanism, adjusting new design variant simulation data to form an adaptive durability performance prediction model; establishing a closed-loop correction mechanism, locating the error source through historical simulation and measured data deviation analysis, dynamically adjusting the correction parameters to optimize the simulation results; constructing a cross-modal attention fusion network, combining a time-space alignment mechanism to fuse sensor time series data and simulation stress spectrum; finally, based on the fusion data, an end-to-end neural network model is constructed to simultaneously complete fault type determination, position positioning and severity evaluation, and is associated with design data. The method realizes rapid adaptation of new design variants, improves simulation accuracy and fault diagnosis accuracy, and provides accurate basis for design optimization.

The application discloses a transverse steel plate spring structure and relates to the technical field of vehicle engineering. The transverse steel plate spring structure comprises a front suspension, two wheels and a transverse plate spring. Opposite sides of the two wheels are respectively provided with control arms. The transverse plate spring is arranged between the two control arms. The middle part of the transverse plate spring is arranged on the front suspension. A rubber elastic pad is arranged between the transverse plate spring and the front suspension. The rubber elastic pad is formed with a hollow cavity with two openings. The transverse plate spring moves up and down when subjected to force. The transverse plate spring moves from top to bottom, so that the hollow cavity is gradually closed. The rubber elastic pad with two openings is arranged between the transverse plate spring and the front suspension. The non-linear and gradual change of the suspension stiffness is realized by using the hollow cavity formed in the rubber elastic pad.

This invention discloses a steel-aluminum heterogeneous connection system with constant force characteristic displacement compensation and its calibration method, relating to the fields of vehicle engineering and structural strength technology. The system includes bolts, an elastic compensation core, and a rigid limiting element. The elastic compensation core forms a constant force characteristic platform area through specific geometric parameter ratios, and the platform width can completely cover the thermal expansion mismatch displacement of the steel and aluminum caused by temperature differences. The rigid limiting element has an axial limiting part, achieving temperature difference displacement compensation under normal conditions and quickly switching to rigid force transmission under collision conditions. The calibration method uses a room temperature mid-position anchoring method, initially compressing the elastic compensation core to the midpoint of the constant force platform to achieve bidirectional displacement compensation. This invention effectively solves the problems of drastic changes in preload, loosening and abnormal noise, stress failure, and unreliable force transmission in steel-aluminum connections under extreme temperature differences, improving structural durability, NVH performance, and simulation accuracy. It is applicable to various vehicle steel-aluminum composite bolt connection scenarios.

This application discloses a method, apparatus, device, and storage medium for adapting the UI layout of an in-vehicle device, relating to the field of vehicle engineering and applied to a target in-vehicle device. The method includes: launching a target application to be adapted on the target in-vehicle device; using the target application to read a target configuration file locally on the target in-vehicle device and parsing the target configuration file to obtain the corresponding parsing results; the target configuration file is a JSON configuration file; adjusting the UI components of the target application based on the parsing results, and adapting the business logic corresponding to the adjusted layout based on the logical rules in the target configuration file to obtain the corresponding target layout; initiating a display request for the adapted layout using the target application; restarting the target application based on the request result to display the main activity interface of the target application based on the target layout. This application achieves efficient and flexible dynamic adaptation of UI and business logic across multiple platforms using a single codebase.