128 results about "Automobile design" patented technology

The invention relates to the technical field of automobile design, and particularly discloses an automobile wind resistance optimization design method based on a machine learning model, and the method comprises the steps: collecting data of different automobile types, and carrying out the cleaning and standardization processing; constructing a wind resistance prediction model, training the model by using the preprocessed data, and minimizing a prediction error by adjusting model parameters; key design variables are selected, the variation range of the key design variables is determined, and a parameterized model is constructed; selecting sample points in a design variable space, generating a corresponding geometric model, calculating a wind resistance coefficient and establishing a sample point database; dividing sample point data into a training set and a test set, optimizing a machine learning model, searching an optimal solution in combination with an optimization algorithm, and iteratively updating the model by increasing sample points until the precision requirement is met; an optimal design variable combination is determined, an optimized automobile geometric model is generated, CFD simulation verification is carried out, and a design scheme containing detailed parameters and optimization results is output.

The present invention discloses a suspension structure and parameter design method for suppressing high-frequency vibration of a vehicle body by three measures in the automotive field. An existing stiffness-damping inertia autonomous controllable suspension and a wheel high-frequency dynamic vibration absorber are combined to form a suspension for suppressing high-frequency vibration of a vehicle body by three measures. On the basis of vehicle body mass, wheel mass and equivalent stiffness, the mass of the wheel high-frequency dynamic vibration absorber and the minimum stiffness of the suspension in comfort mode are determined according to automobile design requirements. The damping and inertia of the inertia tube, the stiffness and damping of the wheel high-frequency dynamic vibration absorber are optimized with the goal of minimizing the objective function. When the vehicle is traveling on a bad road, the high-frequency vibration suppression measure transmitted from the wheel to the vehicle body is expanded to three measures of wheel high-frequency dynamic vibration absorption, vibration isolation and anti-resonance vibration reduction that work in coordination with each other, so that the advantage of the wheel high-frequency dynamic vibration absorption measure in cutting the peak of the high-frequency vibration of the vehicle body and the advantage of the anti-resonance vibration reduction measure in narrowing the bandwidth of the high-frequency vibration frequency band of the vehicle body are organically combined, and the vibration of the vehicle body in the high-frequency vibration band is completely flattened.

The invention relates to the field of automobile design, in particular to an equipment scheduling method and device, equipment and a storage medium, and aims to realize reasonable scheduling of test equipment. The method comprises the following steps: receiving an equipment use application sent by a user, wherein the equipment use application comprises a user identity code, an equipment identity code of target equipment and a reserved time grid; according to the device identity code and the time grid, determining whether the reservation time of a plurality of different users corresponding to the target device has conflicts; determining a priority weight corresponding to the equipment use application according to the user identity code of each user under the condition that the reservation time has a conflict; and according to the priority weight corresponding to each equipment use application and the time grid corresponding to each user, distributing the use right of the target equipment to the corresponding user.

The invention relates to the technical field of automobile design, in particular to an intelligent generation type design method of an anti-collision beam, which comprises the following steps: firstly, performing experimental analysis on the anti-collision beam to obtain a section image comprising the anti-collision beam and performance response data corresponding to the section image; performing image recognition and text extraction on the section image; fusing the recognized image and the extracted text by using a multi-modal multi-layer fusion model to obtain a multi-modal design variable; training the constructed conditional variation network by using the multi-modal design variables and the performance response data corresponding to the multi-modal design variables to obtain a conditional variation model; generating design variables by using the conditional variation model, and predicting performance response data corresponding to the variables; optimal performance response data are screened out from the obtained performance response data, and then the optimal design scheme of the anti-collision beam to be designed is obtained. According to the method, the optimal design scheme is determined by using the conditional variation network, and the efficiency and the precision of optimization design are effectively improved.

The invention discloses an automobile three-view generation method, device and equipment based on multi-view splicing training, and relates to the technical field of computer vision and image generation, and the method comprises the steps: collecting three-view pictures of an automobile to construct an image set, and carrying out the labeling of the image set, and obtaining a training set; and training a LoRA model based on the training set, and adjusting a FLUX model based on the trained LoRA model, thereby realizing three-view generation of the target vehicle based on the adjusted FLUX model. According to the method and the device, the three views of the same vehicle can be generated at one time when the automobile design drawing is drawn, the consistency among the three views is ensured, the generated image is high in quality and rich in details, and an efficient and convenient vehicle three-view generation scheme is provided for a user.

The utility model discloses a door plate middle plug-in wrapping assembly capable of changing luminous patterns, which belongs to the technical field of automobile design and comprises a light-transmitting wrapping assembly and a light-transmitting mechanism, the light-transmitting mechanism is mounted on the light-transmitting wrapping assembly, the light-transmitting wrapping assembly comprises a light-transmitting skin, a light-transmitting 3D mesh and a light-transmitting framework, the light-transmitting 3D mesh is adhered to the light-transmitting framework, and the light-transmitting 3D mesh is mounted on the light-transmitting skin. The light-transmitting mechanism comprises a support, a gear, a motor, a rack, a shading modeling plate and a light source, the motor is installed on the support, the gear is matched with the motor and meshed with the rack, the shading modeling plate is connected to the rack through a screw, and the light source plate is installed on the support through a screw. According to the utility model, the conversion of the light-transmitting modeling pattern mapped on the light-transmitting skin is realized, and the light and shadow atmosphere of the whole vehicle is improved. The structure is mainly of a mechanical structure, the reliability is higher, the light source plate does not need a large number of LED bulbs, only LED lamp strips are needed, the number of needed wire harnesses is small, and the cost is low.

The application relates to the technical field of honeycomb sandwich structures, in particular to a double-material curved-edge inner-concave negative Poisson's ratio sandwich plate design method considering material gradient and structure gradient design simultaneously. The method comprises an upper end plate, a core layer and a lower end plate, the core layer is arranged between the upper end plate and the lower end plate and is fixedly connected with the upper end plate and the lower end plate; the core layer is a double-material curved-edge negative Poisson's ratio gradient honeycomb layer structure, and the core layer is obtained by stretching the rear of a double-material inner-concave curved-edge negative Poisson's ratio cell transversely. The internal structure of the plate layer is restructured, so that the problem that lightweight safety cannot be considered simultaneously in the automobile design and production process is solved.

The application discloses a vehicle side window defrosting and defogging area determination method and device, electronic equipment and medium, and belongs to the technical field of automobile design human-machine engineering. The application determines a first design reference area and a plurality of first defrosting and defogging actual need areas corresponding to a left side window of a vehicle based on an eye ellipse model, a rearview mirror observation model and a vehicle side window model in a whole vehicle development coordinate system, and then integrates to obtain a defrosting and defogging design area of the left side window of the vehicle. The defrosting and defogging design area of the left side window of the vehicle can be directly output to a vehicle air conditioner design engineer for left side air outlet design of the vehicle air conditioner. On the premise of meeting the basic use requirements of users and ensuring the actual use comfort of the vehicle, the defrosting and defogging area of the left side window glass is reasonably determined at least in the vehicle design stage, the left side window of the vehicle has good defrosting and defogging effect, and the needs of drivers with different heights and weights for observing the left outside rearview mirror during actual driving are met, so that the driving safety is improved.

The invention provides an automobile design change process data processing method and device, a medium and electronic equipment. The method comprises the steps of obtaining multi-source heterogeneous original design change information through a standardized interface in response to a design change process initiated by a management user for a target automobile change project; performing multi-level classification on the original design change information to obtain at least one category of intermediate design change information; extracting structured target design change information from the intermediate design change information through a pre-trained large language model; and creating a design change application ledger, and importing the target design change information and auditor information auditing the target design change information into the design change application ledger to trigger an approval program of the automobile design change. According to the invention, the efficiency of automobile design change process data processing can be improved.

The utility model provides a pipeline mounting structure and an automobile, and relates to the field of automobile design and manufacturing. The utility model provides a pipeline mounting structure. The pipeline mounting structure comprises a fixed part and a rotating part, a first through hole is formed in the fixing piece, and the fixing piece is fixedly connected with a vehicle structure; the rotating piece is at least partially arranged in the first through hole and is fixed relative to the fixing piece in the axial direction of the first through hole, and a second through hole used for fixing a pipeline is formed in the rotating piece; and the rotating piece is arranged to rotate along the inner circumferential wall of the first through hole under the twisting driving of the pipeline. Through the optimized design of the pipeline mounting structure, the torsional shear stress in the torsional deformation process of the pipeline can be reduced, the fatigue damage easily caused after the pipeline is twisted for multiple times for a long time is inhibited, and the service life of the pipeline is prolonged.

The application discloses a kind of automobile driver knee space design methods, it is characterized in that, acquire several driving postures data, based on data obtains each percentile human knee space limit line, and stretch to form knee space limit surface, then its process is encapsulated into knee space limit surface template and the template is called in automobile design process to complete design.The application can avoid the problem of poor comfort caused by insufficient driver knee space in the design stage.The driver knee space limit surface obtained by the application can be used to limit the design of instrument panel and center console, to leave enough knee movement space for the driver, and improve the driving comfort of the driver.

The invention discloses an automobile network topology based on a domain centralized architecture and an application method and equipment, and relates to the technical field of automobile design and manufacture, the automobile network topology comprises an automobile body domain controller, a power domain controller, an intelligent driving domain controller and a cabin domain controller, the CAN of the automobile network topology comprises a diagnosis CAN, a power CAN, a chassis CAN, an automobile body CAN, an information CAN and a fuel CAN, and each domain controller comprises a plurality of ECUs as child nodes. The power domain controller and the child node ECU of the power domain controller are mounted on the power CAN; the intelligent driving domain controller and the child node ECU of the intelligent driving domain controller are mounted on the chassis CAN. According to different platform vehicle model architectures of pure electricity, hybrid power and fuel oil, only topological cutting is needed, the topological structure does not need to be changed, and generalization and serialization of parts can be achieved.

The utility model provides an air handling unit structure and an automobile, and relates to the field of automobile design and manufacturing. The air handling unit structure is used for being arranged in a front cabin of an automobile. The air handling unit structure comprises an air inlet module, an evaporator module, an air blower module and a double-temperature-area air dividing module, two independent temperature areas are arranged in the double-temperature-area air dividing module, and mode air doors are arranged at the ends, away from the air blower module, of the two temperature areas; wherein the air inlet module is used for switching inner / outer circulation air inlet and guiding air into the air conditioning box structure, and the double-temperature-area air inlet module is arranged to be capable of independently adjusting the temperature of air flowing through each temperature area and capable of switching the mode air door state to convey air exhausted from each temperature area into a passenger compartment in different air outlet modes. The air conditioning box structure is arranged in the front cabin of the automobile, so that the space of an instrument desk can be saved, the convenience in maintenance, disassembly and assembly is improved, the noise in the cabin of the automobile is reduced, and the NVH (Noise Vibration and Harshness) performance of the automobile is effectively improved.

The invention discloses an automobile design optimization method based on perceptual requirements. The method comprises the steps of obtaining target comment data about an automobile; obtaining a comment keyword and a user group type according to the target comment data; performing matching relationship verification on the comment keyword to obtain a target keyword pair; obtaining attention features according to the comment keywords; obtaining a user perceptual demand portrait according to the target key vocabulary pair, the attention feature and the user group type; and optimizing the automobile design according to the user perceptual demand portrait. According to the scheme, the matching relation between the design elements and the perceptual words in the user comments can be systematically mined, the perceptual cognition structure model of the user is constructed in combination with the user background and attention characteristics, the perceptual demand difference of different user groups under different car purchase purposes is visually presented, and the user experience is improved. Therefore, a scientific and data-driven support means is provided for automobile appearance design.

The invention discloses a TRB plate index modulation width control parameter identification method, and belongs to the field of new energy automobile design. In order to solve the problems that in existing TRB material parameter identification, a traditional equal-width sample is fractured in a thin area, a uniform-cross-section-area sample is fractured in a thick area, the testing cost is high, the efficiency is low, and hypothesis lacks physical basis, the method is achieved through the six steps that basic parameters of a TRB plate are measured, a uniform-cross-section-area sample width control function is deduced, and the TRB material parameter identification result is obtained; a novel width control function is designed by using an index modulation method, parametric modeling is performed, width control parameters are optimized to enable the transition area to deform sufficiently and uniformly, and an optimal sample is tested based on a DIC technology to obtain a real stress-strain curve. According to the method, the limitation of the prior art is overcome, only the thin area and the thick area need to be tested, the cost is remarkably reduced, the material plasticity information is efficiently obtained, and support is provided for TRB technical engineering application.

The present invention relates to a rotatable central control large screen installation structure, and relates to the technical field of automobile design and manufacturing. The rotatable central control large screen installation structure of the present invention includes a screen decorative back cover, a screen bracket, an upper bracket and a lower bracket; the upper bracket and the lower bracket cooperate to form a bracket structure, the bracket structure is fixed to the vehicle body, and the screen bracket is arranged on the screen decorative back cover; the connecting plate of the screen bracket passes through the screen decorative back cover and is arranged between the upper bracket and the lower bracket, and the connecting plate cooperates with the upper bracket and the lower bracket through bolts and nuts to realize the hovering of the screen decorative back cover and the screen bracket, as well as the horizontal rotation of the screen decorative back cover and the screen bracket relative to the bracket structure. The rotatable central control large screen installation structure of the present invention solves the problem of unclear screen visibility due to reflection at specific angles by fine-tuning the screen angle, and has a simple structure, reduces occupied space, and reduces parts costs.

To manufacture a vehicle interior material that accommodates various automobile designs while ensuring high production efficiency.SOLUTION: A polyolefin resin foamed sheet is subjected to corona treatment continuously after completion of a heating-foaming step, and exhibits a maximum heating-angle change in the width direction of -10 to +10 degrees when heated for 10 minutes under an environment of the maximum melting point of the base resin +20°C.SELECTED DRAWING: None

The present invention discloses a method for improving automobile vibration, a control device, and an automobile, relating to the field of automobile design technology. The method includes the following steps: obtaining the variable travel of the empty spring and the corresponding drive shaft angle under multiple preset modes of the automobile, and forming a parameter group; obtaining the acceleration amplitude corresponding to each parameter group of the variable travel of the empty spring and the drive shaft angle under rapid acceleration in multiple preset speed ranges of the automobile; comparing the acceleration target value with the multiple acceleration amplitudes to obtain multiple acceleration excess amplitudes that exceed the acceleration target value; and adjusting the multiple acceleration excess amplitudes so that the multiple acceleration excess amplitudes do not exceed the acceleration target value. This configuration enables the automobile to consistently achieve NVH performance targets during operation and effectively guarantees the NVH performance of the entire vehicle batch.

This invention provides a device and method for measuring foot space when getting in and out of a car, belonging to the field of automotive design and measurement technology. It includes: a positioning component for fixing the device to a reference plane of the vehicle door sill; a height adjustment component operatively connected to the positioning component for vertical extension / retraction adjustment; a horizontal measuring component operatively connected to the height adjustment component for horizontal extension / retraction or rotation adjustment; a reading component disposed on the horizontal measuring component for measuring and reading the horizontal dimension of the foot space; and a locking component for selectively fixing the positions of the height adjustment component, the horizontal measuring component, and the reading component during measurement. It provides a simple-to-operate, accurate, and highly repeatable device and method for measuring foot space when getting in and out of a car.

The invention relates to an automobile AI drawing method and system based on a fusion competition strategy, and belongs to the field of artificial intelligence. The method comprises the following steps: inputting a fusion competition strategy, and carrying out strategy decomposition and parameter quantization to obtain a strategy parameter table; performing strategy coding based on the strategy parameter table, and outputting a strategy vector; performing design feature mapping based on the strategy vector to obtain a design feature vector; performing feature layering based on the design feature vector, and outputting layering condition embedding through layering coding; embedding and constructing a diffusion model based on a layering condition, and preliminarily generating an automobile design image; and performing strategy consistency evaluation based on the automobile design image, performing mapping matrix adaptive optimization based on an evaluation result, and outputting a final automobile design drawing. According to the method, multiple elements such as market competition strategies, brand features and cost limitation described by natural languages are quantitatively fused into the AI drawing process, so that the scientificity, efficiency and market adaptability of automobile design are improved.

The present disclosure provides a virtual detection method and system for a steering column with intermediate shaft assembly, and relates to the technical field of automobile design. The method comprises: building a parameterized model of the steering column with intermediate shaft assembly; sequentially performing intermediate shaft torque fluctuation detection, intermediate shaft envelope detection, and model motion envelope detection on the built parameterized model of the steering column with intermediate shaft assembly; wherein building the parameterized model of the steering column with intermediate shaft assembly comprises: determining the initial positions of each hard point in the steering column with intermediate shaft assembly, and obtaining the coordinates of each hard point; generating a hard point design table based on parameterized design, building a simplified boundary model of the steering column with intermediate shaft assembly, and associating the simplified boundary model with the hard point design table; establishing a motion command of a moving part, and a motion trajectory and an envelope type of each motion, and completing the building of the parameterized model of the steering column with intermediate shaft assembly. The present disclosure can improve the development and design efficiency of the steering column with intermediate shaft assembly.

The invention relates to the technical field of automobile design, in particular to a multi-element combination-based frame lightweight optimization method, and solves the technical problems that in existing truss-type frame lightweight design, model establishment is complex, and a traditional Harris eagle algorithm is slow in convergence speed and low in precision. Analyzing strength and rigidity performance under bending and torsion working conditions and acquiring inherent frequency; then, response surface optimization is carried out by taking the I-beam as an object, and three groups of candidate solutions are obtained by taking the maximum deformation and the maximum stress as constraints and the mass as a target; optimizing a traditional Harlisia eagle algorithm to obtain an IHHO algorithm, optimizing the cross section size of the I-shaped beam by using the IHHO algorithm to obtain three groups of optimal solutions, and determining final parameters of the beam cross section after comparison; and optimizing other beams of the frame according to the steps, and finally verifying the strength, rigidity and fatigue life of the optimized frame. The method has a good application prospect in the field of design of truss type frames with lightweight requirements.

The application relates to a flexible-screen-based automobile central control screen structure and relates to the technical field of automobile design and manufacturing. The flexible-screen-based automobile central control screen structure comprises a flexible screen, an upper screen back plate, a lower screen back plate, a folding mechanism, a retainer providing a mounting structure for the folding mechanism, a linear driving motor, a screw rod and a shell. The flexible-screen-based automobile central control screen structure has a smaller space size after being folded, is convenient to arrange, and the flexible screen after being folded can be displayed in a thumbnail mode through a secondary display area, and the interactive demand of a user can still be met.

The utility model discloses a hidden type interactive grating assembly which comprises an exterior trimming part and an interactive light source display structure, the exterior trimming part is a light-transmitting part, a light-transmitting coating is arranged on the surface of the exterior trimming part, and the interactive light source display structure is arranged on the back face of the exterior trimming part corresponding to the light-transmitting coating. The hidden interactive grating assembly and the automobile with the hidden interactive grating assembly are reasonable in design, a corresponding light source display structure on an automobile exterior trimming part does not need to be hollowed out to reserve an installation space, the light source display structure is arranged on the back face of the exterior trimming part, a coating of the exterior trimming part is a light-transmitting coating and can be consistent with an automobile body in color, the integrity of the whole front face can be improved, and therefore the appearance of the whole automobile is improved; and the cost is relatively low.

This invention discloses a method and system for modeling vehicle door structures, relating to the field of automotive design technology. The method includes: determining the large glass surface based on the glass boundary of the door window frame; calling a library of standard door cross-sections with predefined standard cross-sectional references based on the door structure; determining design cross-sectional references for each standard cross-section based on the door structure design parameters; adjusting the standard cross-sectional references to the design cross-sectional references to determine the design position of each cross-section; and generating a door structure model based on all determined cross-sectional positions. This invention achieves rapid and standardized modeling of vehicle door structures through parametric and automated cross-sectional reference alignment and positioning, reducing repetitive manual work, improving design efficiency and consistency, and enabling early verification and optimization of key designs such as hinge arrangement. The system includes corresponding functional modules to implement the method.

The present invention discloses an adjustment method for a small table on a car seat back, a control device, and a car, and relates to the field of automobile design technology. The adjustment method for the small table on a car seat back comprises: obtaining first coordinate information of an occupant's heel point, second coordinate information of the occupant's H point, and third coordinate information of the center point of an opened small table; calculating actual position information of the center point of the small table relative to the occupant's H point based on the third coordinate information of the center point of the small table and the second coordinate information of the occupant's H point, and determining target position information of the center point of the small table relative to the occupant's H point based on a preset correlation between the first coordinate information and the second coordinate information; and determining an adjustment scheme for the small table based on the actual position information and the target position information. Using the above method, after rear passengers are seated, the small table can be controlled to perform adaptive adjustment based on the occupant's position, so that the small table reaches a more optimal position, thereby improving the rear passenger's riding experience.

The invention discloses an auxiliary instrument panel, and belongs to the field of automobile parts, the auxiliary instrument panel comprises an auxiliary instrument main body, one side of the outer wall of the auxiliary instrument main body is fixedly connected with a panel, the top of one side of the outer wall of the panel is provided with an unlocking window and an interface box located below the unlocking window, and the inner wall of the interface box is clamped with a connector; a limiting groove is formed in the top of the connector, so that when the end of the connector makes contact with one side of the inner wall of the interface box, the end of the inclined plate is separated from limitation of the connector, and the end of the inclined plate is embedded into the limiting groove under the action of resilience force of a reset spring; therefore, the connector and the storage box are fixed, and the problem that in the current automobile design, an interface or a fixing platform of a customized storage box meeting the requirements of a user is not provided, so that the universality of the storage function in the automobile is low is further solved.

The invention relates to the technical field of computer-aided engineering, in particular to a construction method of a high-precision whole vehicle fatigue simulation database and related equipment. The method comprises the following steps: acquiring parameters of a test sample, setting parameters of a fatigue machine and fatigue parameters of the test sample; performing modeling processing on the structure of the test sample according to the parameters of the test sample to obtain an initial CAE model; performing fatigue analysis processing on the initial CAE model according to fatigue machine setting parameters to obtain simulation data; comparing the simulation data with the fatigue parameters of the test sample piece; when the data difference exists, performing parameter adjustment on the initial CAE model, and then performing fatigue analysis processing and comparison until the data difference does not exist; when the data difference does not exist, obtaining a target CAE model; and establishing a database according to the parameters of the target CAE model to obtain a fatigue simulation database. The simulation analysis accuracy can be improved, problems can be accurately found in the automobile design stage, and physical prototype testing is reduced.

The invention discloses a simulation prediction method based on reduced-order model machine learning, and relates to the technical field of crossing of computer-aided engineering simulation and machine learning, in particular to a simulation prediction method based on reduced-order model machine learning, which comprises the following steps: firstly, performing finite element simulation on automobile parts (such as an anti-collision beam) to obtain simulation data; secondly, selecting sample points by adopting a Latin hypercube sampling method, and verifying that a data set meets an order reduction requirement; then, carrying out dimension reduction processing on the data by applying an order reduction model (such as intrinsic orthogonal decomposition (POD) or singular value decomposition (SVD)); and finally, predicting the data after order reduction by using a Kriging method machine learning model, and evaluating the prediction precision by using a decision coefficient R2 and a root mean square error RMSE. According to the method, through combination of the reduced-order model and machine learning, the simulation calculation efficiency is effectively improved, meanwhile, the accuracy of a prediction result is ensured, and the method is suitable for rapid simulation optimization in automobile design.