22034 results about "Vehicle frame" patented technology

A vehicle includes a chassis including a frame rail extending longitudinally, a tractive element coupled to the chassis, a cab coupled to the chassis and configured to support an operator, an electric motor configured to drive the tractive element to propel the vehicle, a battery configured to supply electrical energy to the electric motor, a heat exchanger, a cable electrically coupling the electric motor and the battery, and a conduit fluidly coupling the battery and the heat exchanger. The cable and the conduit extend laterally from the battery to the frame rail, and the cable and the conduit extend longitudinally along the frame rail.

The invention discloses a blind sidewalk illegal parking identification method based on target detection, comprising the following steps: collecting road automobile illegal parking image data and blind sidewalk image data, and making a data set; a YOLO network model and a GRFB-UNet network model are built; training and improving the YOLO network model, storing the optimal parameters of the YOLO network model in the training process, and naming the file as best.pt; and inputting a preprocessed video to be detected into the trained YOLO network model, inputting the video into the GRFB-UNet network model to obtain a blind sidewalk segmentation mask graph, segmenting the blind sidewalk, and judging whether the blind sidewalk is occupied by illegal parking or not through blind sidewalk pixel points shielded in a vehicle frame. According to the method, a multi-scale convolution adaptive aggregation feature (AMFA) module is designed, an ELA attention mechanism is improved and innovated into AELA, the lightweight characteristic of the improved model is kept, and the performance is remarkably improved.

The invention discloses an automobile front subframe lightweight design method considering modal constraint. The method comprises the following steps: (1) constructing a front subframe parameterized model and a weight-modal simulation model by adopting CATIA (Computer-graphics Aided Three-dimensional Interactive Application) and Altar Optistruct; (2) establishing a population in a design space based on a space filling Latin hypercube sampling method; (3) constructing a classification cooperation speed updating formula based on a particle swarm algorithm to generate offspring particle individuals; (4) constructing a Gaussian process machine learning model and a fitness evaluation function, and screening an optimal offspring particle individual based on a feasibility rule; and (5) constructing a comprehensive score calculation formula according to a statistical ranking method to determine the updating condition of the population individuals, updating the database and skipping to the step (3) until the optimized structure meets the requirement. According to the method, the coverage capability of the filial generation in the target space is enhanced through the classification collaborative speed updating formula, and the prediction precision of the Gaussian process machine learning model is continuously improved, so that the optimization performance of the lightweight of the front subframe of the automobile is improved.

The utility model provides a baby trailer with convenient storage, which comprises a trailer frame and a storage structure. The trailer frame comprises a front side frame, a rear side frame, a rear chassis frame. The front chassis frame is hinged with the front side frame. The rear chassis frame is hinged with the rear side frame. The storage structure is hinged with the front side frame and the rear side frame, so that the front frame and the rear side frame are capable of folded. The storage structure comprises two storage frames, a connecting rod. The connecting rod is connected with the left storage frame, the connecting rod is connected with the right storage frame. The ends of the front chassis frame and the rear chassis frame are movably placed on the connecting rod. The baby trailer has the advantages of convenient storage and small occupied space after storage.

Embodiments herein relate to a battery support structure for an electric vehicle, assemblies with the same, and methods of manufacturing, integrating, and using the same, among other things. In embodiments, a support structure for use on an electric vehicle includes a pair of frame rails and a battery case with a bottom coupled to the frame rails. The battery case is coupled to the frame rails at a location below the frame rails, e.g., with resilient bushings held between the battery case and the frame rails by brackets extending below the frame rails, and away from the battery case.

The present invention relates to the technical field of flatness detection devices, and in particular to a road flatness detection device and detection method. Its technical solution includes: a frame and an extension frame slidably mounted on the frame, the frame and the extension frame constitute a vehicle frame, and also includes: a roadblock shielding component mounted on the vehicle frame, when the wheel assembly component contacts the concave and convex surface and drives the vehicle frame to tilt, the roadblock shielding component drives the detection component to move in the opposite direction of the tilting direction, and controls the ground clearance of the detection component to always remain equal. The present invention uses the roadblock shielding component to move the measuring wheel located in the middle of the frame downward when one end of the frame rotates, and the downward movement distance is half of the rising height of the rising end of the frame, which can avoid the influence of the rising or falling end of the frame on the measuring wheel, and thus can effectively improve the accuracy of the measuring wheel when measuring irregular roads, and can effectively improve the accuracy of calculating the road surface flatness data.

Electric and hybrid off-road vehicles, accessories and frames therefor are provided. An off-road vehicle comprises a frame assembly, at least one front and rear wheel, at least one electric motor, at least one battery and at least one final drive unit operatively coupled to at least one wheel. The electric motor is operatively coupled to the final drive unit for transferring torque from the electric motor to the wheel. A battery assembly having electric components integrated thereto is provided. A structural battery is configured to provide a structural connection between at least two of a top, bottom, front and rear portions of a frame assembly for an off-road vehicle, and for receiving loads therefrom. Improved drivetrain arrangements provide flexibility in operating an off-road vehicle and improve overall performance. The environmental impact of off-road vehicles is reduced. Weight and complexity of off-road vehicle frames are reduced without affecting stability or safety.

The invention discloses a vehicle frame production information management method and system, and relates to the technical field of production optimization. A vehicle frame production information management system comprises a sensing module, a data storage module, a data processing module, a production optimization model module, a plan management module, a quality inspection management module and a data analysis and decision support module. Based on a machine learning model and a neural network technology, historical operation data and real-time parameters of the equipment are analyzed, and the future fault probability and the fault type of the equipment are accurately predicted; and when the equipment fault risk exceeds the preset threshold value, early warning is triggered, and a maintenance or replacement suggestion is generated, so that the shutdown risk caused by the equipment fault in the production process is remarkably reduced, and intelligent and predictive maintenance of equipment management is realized.

Provided are an electric wagon and an electronically power assisted wagon. The electric wagon includes a wagon body including at least a foldable frame; a handle device connected to the wagon body; a walking assembly including at least driving wheels; a drive motor configured to drive the driving wheels to rotate; a power supply connection portion configured to be detachably connected to a battery pack for supplying power to the drive motor, and a controller electrically connected to at least the drive motor to control the drive motor to rotate.

The battery pack support for the new energy vehicle comprises a first battery installation unit, and the first battery installation unit comprises a first suspension support and a second suspension support which are arranged in a spaced mode and horizontally installed on the outer side of a vehicle frame longitudinal beam; the battery frame is used for accommodating and fixing the first battery pack positioned on the upper layer and the second battery pack positioned on the lower layer; the first side bracket and the second side bracket are arranged at the first end of the battery frame; and the third side bracket and the fourth side bracket are arranged at the second end of the battery frame. The battery frame and the side supports can be preassembled in a factory, only the rubber bushings need to be connected to the suspension supports on site, installation is easy, efficiency is high, the rubber bushings can buffer and / or absorb impact force caused by bumping of a vehicle to the battery pack, and safety is improved.

The invention discloses a method and a system for predicting and monitoring frame fatigue based on twinning of the Internet of Vehicles. The method comprises the following steps: analyzing a vehicle use scene and a working condition ratio based on historical data of the Internet of Vehicles; carrying out a frame real vehicle load test, and converting a strain-time history into a load-time history in combination with static loading calibration; performing weighted combination on each load history according to a working condition ratio to obtain a weighted composite load-time history; reconstructing a stress-time history of each measuring point based on finite element analysis, and constructing a stress cyclic spectrum by adopting a rain flow counting method; calculating the fatigue life of the frame by combining a stress-life method and a Miner linear damage criterion; and constructing a frame twinborn model corresponding to the real vehicle at the cloud, accessing vehicle operation data in real time, dynamically updating a stress process and fatigue damage, calculating the residual fatigue life, and triggering early warning when the life is lower than a threshold value. The method can achieve the precise evaluation and online monitoring of the fatigue life of the vehicle frame, and is suitable for the durability design and structural health management of new energy commercial vehicles.

The invention relates to the technical field of wharf loading and unloading, and discloses a bulk grain wharf ship loading and unloading dual-purpose machine which comprises a conveyor main body and a frame, a discharging hopper is fixedly connected to the top of the conveyor main body, the bottom of the conveyor main body is rotationally connected with the outer wall of the frame, and a supporting frame is rotationally connected to the bottom of the conveyor main body; when a ship needs to be unloaded, a conveying pipeline enters a cabin through a moving assembly, then when a first motor is started to enable a rotating rod to rotate, a connecting rod can be driven to rotate, a concave-convex ring rotates, an extrusion pushing assembly ascends and extrudes gas, and finally high-pressure gas is sprayed out towards grain particles and permeates into gaps of the grain particles to form an air cushion effect; the friction force among grain particles is reduced, the mobility of the grain particles is enhanced, the grains are conveniently conveyed by the spiral auger, the situation that the grains are accumulated at the bottom of the spiral auger due to poor mobility of the grain particles, the grains are extruded and are prone to being damaged is effectively prevented, and the integrity of the grain particles is ensured.

The present invention discloses a simple folding cart, including a cart frame body and a cloth cover sleeved on the cart frame body. The cart frame body includes a side frame and a folding frame, and the folding frame includes an upper folding rod and a lower folding rod. The upper folding rod is hinged to first and second rotating bodies through first and second upper connecting shafts, and the lower folding rod is hinged to the first and second rotating bodies through first and second lower connecting shafts. The underframe can be limited on a lower side of the first rotating body through the upper folding rod and can be limited on an upper side of the second rotating body through the lower folding rod so as to be maintained in an unfolded state and support the two side frames to be maintained in an unfolded state.

The present invention relates to an electric scooter, and in particular to a foldable scooter. A foldable scooter is provided, comprising a front frame and a rear frame, wherein the front frame comprises a front fixation portion, and a first connecting frame and a second connecting frame which extend longitudinally; the front and rear ends of the first connecting frame are oppositely located above the front and rear ends of the second connecting frame; the rear frame comprises a rear fixation portion, and a third connecting frame and a fourth connecting frame which extend longitudinally; both the front end of the first connecting frame and the front end of the second connecting frame are fixed to the front fixation portion in a rotatable manner; the front end of the third connecting frame is fixed to the rear end of the first connecting frame in a rotatable manner, the third connecting frame deviating from its end is fixed to the rear end of the second connecting frame in a rotatable manner, and the rear end of the third connecting frame is connected to the rear fixation portion; and, the rear end of the fourth connecting frame is fixed to the third connecting frame or the rear fixation portion in a rotatable manner, while the rear end thereof is fixed to the first connecting frame in a rotatable manner. The present invention has the advantage that the folded scooter occupies less space and is more convenient for storage and transportation.

The invention provides an aircraft landing gear dismounting and mounting device, belongs to the technical field of aviation equipment, and solves the problem that in the prior art, landing gear dismounting and mounting equipment is difficult to meet the requirements for efficient, accurate and flexible dismounting and mounting in the modern aviation maintenance field. Comprising a frame, a moving frame is arranged on the inner side of the frame, and the moving frame is driven by a first driving device; a moving plate is arranged on the frame and is driven by a second driving device; an arc-shaped guide rail is arranged on the movable plate, a supporting frame is arranged on the arc-shaped guide rail, a lifting device and a fixing device are arranged on the supporting frame, and a clamp is arranged on the top of the lifting device. According to the undercarriage disassembling and assembling device, through cooperative operation of the first driving device, the second driving device and the lifting device, all-directional flexible adjustment of the tool on the X axis, the Y axis and the Z axis is achieved. Due to the design of the arc-shaped guide rail, the supporting frame can flexibly rotate within a certain angle range, and the adaptability and flexibility of the device are further enhanced.

A folding cart includes a frame body and a wheel assembly located at a lower part of the frame body. A pull rod assembly is arranged on the frame body in a matched manner. The frame body includes a bottom frame assembly and a side frame assembly which can be folded or unfolded. The side frame assembly includes a plurality of side rail units and a plurality of leg tube assemblies for connecting two adjacent side rail units. Each leg tube assembly includes a leg tube body, an upper leg tube seat located at an upper part of the leg tube body, and a lower leg tube seat located at a lower part of the leg tube body. The wheel assembly includes a plurality of wheel units configured to be detachably and fixedly installed to the lower leg tube seats by first locking and fixing mechanisms.

A structural assembly for an electric vehicle includes a vehicle frame, a battery structure, a pair of mounting structures, and a plurality of fasteners. The vehicle frame includes opposed longitudinal rails. The battery structure is disposed between the opposed longitudinal rails and includes a battery housing configured to house power storage units. Each mounting structure is secured to a respective side of the battery housing and supports a corresponding longitudinal rail. The plurality of fasteners extend through a corresponding mounting structure of the pair of mounting structures and a corresponding longitudinal rail of the opposed longitudinal rails to secure the vehicle frame and the battery structure to each other. An outer periphery of the corresponding mounting structure is substantially flush with an outer periphery of the corresponding longitudinal rail.

The invention provides a multi-dimensional supporting leg structure for lightweight steel ring splicing equipment, and relates to the field of tunnel engineering. The mounting base is fixedly connected with the frame, the telescopic driving mechanism is arranged between the mounting base and the supporting leg assembly, the angle adjusting mechanism is arranged between the cylinder barrel and the mounting base, and the self-locking mechanism is used for locking the cylinder barrel and the piston rod when the driving unit fails. The telescopic driving mechanism is composed of a cylinder barrel, a piston rod and a driving unit, the angle adjusting mechanism is driven through a first rotating shaft and a second rotating shaft which are perpendicular to each other and corresponding rotation, so that the cylinder barrel achieves double-shaft swing adjustment, the self-locking mechanism is composed of a locking rack, a movable tooth claw, a reset spring, an electromagnet and a permanent magnet, and power-on unlocking and power-off self-locking are achieved. According to the structure, the supporting polygon is obviously enlarged under the complex basic condition, the anti-overturning stability of equipment is improved, reliable supporting is kept when a hydraulic system fails, and the safety and adaptability of steel ring splicing operation in a tunnel are improved.

The invention relates to the technical field of belt conveyor dynamic characteristic research, in particular to a trailer type belt conveyor dynamic characteristic simulation method, which comprises the following steps: respectively carrying out stress analysis on a trailer frame, each wheel and a conveying belt unit in a trailer unit, and sorting the degree of freedom; establishing an overall coordinate system, a vehicle body coordinate system, a contact coordinate system and a conversion relation; respectively establishing kinetic equations of the wheel pair and the vehicle supporting frame; kinetic parameters of the trailer unit are determined; according to the Hamiltonian principle, a vehicle supporting frame vertical motion equation and a vehicle supporting frame nodding motion equation are established, and then a linear second-order differential equation of a vehicle supporting unit is obtained; and compiling a calculation program by using numerical calculation software, and simulating the wheel-rail vibration characteristics of the trailer unit in the straight-line-segment advancing process. On the basis of the multi-degree-of-freedom multi-body dynamics theory, a trailer type belt conveyor system nonlinear dynamics equation is constructed, and a wheel pair, a trailer frame and a six-degree-of-freedom motion equation for coupling the wheel pair and the trailer frame are analyzed.

An electrified vehicle includes a front subframe, a rear subframe, and a body that connects the front subframe to the rear subframe so that forces acting on the front subframe and the rear subframe are transmitted through the body. The vehicle also includes a housing coupled to an underside of the body between the front subframe and the rear subframe. An energy storage system is enclosed in the housing and includes a battery and a battery interface configured to electrically couple the battery to at least one component of the electrified vehicle.

The invention provides an automatic seeder which comprises a frame, a ditching mechanism, a seeding mechanism, a walking mechanism and a control module, the frame comprises a first side frame, a second side frame, a width adjusting frame and a first driver, and the width adjusting frame is arranged between the first side frame and the second side frame; the ditching mechanism comprises a main beam, an adjusting beam, a plough share, a second driver and a third driver, the plough share is movably connected with the main beam through the adjusting beam, the adjusting beam drives the plough share to move in the first direction under the action of the second driver, the plough share moves in the second direction under the action of the third driver, and the plough share comprises a plough rod and a plough head. The plough rod is of a hollow structure with a channel; the seeding mechanism comprises a seeding box, a seeding wheel and a first conduit, one end of the first conduit is communicated with the seeding box through the seeding wheel, and the other end is communicated with the channel of the plough rod. The seeder can flexibly adapt to various complex terrains and meet the requirements of different seeds for ditching, and the convenience of the seeder is improved.

A vehicle frame rail includes a first half having a hole, a second half having a hole, and a spacer. The second half is connected to the first half such that the hole in the first half is aligned with the hole in the second half and so as to form an enclosed space between the first half and the second half. The spacer has a first end, a first projection extending from the first end, a second end, a second projection extending from the second end, and a bore extending from the first end to the second end. The spacer is located in the enclosed space such that the first projection of the spacer extends into the hole of the first half and the second projection of the spacer extends into the hole of the second half. A method of manufacturing a vehicle frame rail includes pressing a projection on one of the spacers against the perimeter of a hole in one of the frame rail halves to connect the spacer to the frame rail half.

The invention discloses a multi-modal data driven commercial vehicle frame performance prediction method and system. The method comprises the following steps: uniformly coding design variables of a frame; constructing a multi-modal performance response data set based on finite element simulation and test results of mass production vehicle models, and realizing fusion of simulation and test data by adopting a maximum mean difference and related alignment algorithm; constructing a graph perception Transform multi-task prediction model fusing the structure topology and the physical position features, and predicting key performance indexes of the frame under a plurality of typical working conditions; through weighted multi-task loss function joint training, an uncertainty mechanism is introduced to dynamically adjust task weights; and after training is completed, deploying to an inference engine to realize second-level prediction and support increment fine adjustment updating. According to the method, repeated modeling and solving processes are avoided, the frame performance prediction efficiency and the adaptive capacity are remarkably improved, and the method is suitable for rapid evaluation of the frame performance of commercial vehicles of various structural configurations and material types.

The invention provides an aluminum alloy frame multistage collaborative topological optimization method based on Internet of Vehicles big data, which is applied to the technical field of new energy vehicle lightweight and comprises the following steps: fusing subjective and objective weights to generate a comprehensive weight; a compromise planning method is adopted to construct a multiplex topological optimization objective function; performing first-stage frame overall topological optimization through an SIMP variable density method to determine the number of cross beams and spatial layout; and constructing a rigid-flexible coupling virtual prototype to extract an equivalent static load at the joint of the longitudinal / cross beam, and carrying out second-stage section topological optimization in combination with extrusion process constraint to obtain an optimal section configuration of the longitudinal / cross beam. Through a multi-stage optimization framework of data driving weight distribution, overall layout optimization and local section collaborative design, the lightweight rate of the frame is improved by 15%-22%, the bending rigidity and the torsional rigidity are improved by 12%-18% and 10%-15% respectively, and meanwhile the technological feasibility of aluminum alloy extrusion forming is guaranteed.

The invention discloses a large workpiece strain measuring point auxiliary positioning system and method, and the system comprises a professional software and automatic control system, and an industrial photogrammetry system, a car lifting system, a laser projection system and a three-dimensional scanning quantitative analysis system which are connected with the professional software and automatic control system. And a positioning target is arranged on the surface of the large workpiece product. According to the system, strain contact auxiliary lineation and laser guide assembly work of a large workpiece and quantitative analysis work of strain gauge pasting are achieved, the system takes a target arranged on a product as a positioning reference, the outline of a product model is extracted in a photogrammetry mode, the product model and a real object are matched and unified to the same coordinate system, and the product model and the real object are obtained. The position contour of the strain gauge needing to be pasted and auxiliary information are projected to the surface of a product through the laser projection technology, the current pasting position information can be efficiently and accurately reflected, and high-efficiency and high-precision assembly of the strain gauge is facilitated.

An energy storage arrangement for a vehicle, the energy storage arrangement comprising a first energy storage module comprising a first surface, and at least one hook member arranged on the first surface, and a second energy storage module comprising a first wall and a second wall, the first and second walls being transversally offset from each other, and a first chassis connecting member arranged on the first wall, wherein the second energy storage module is suspendable to a frame of the vehicle by the first chassis connecting member, wherein the at least one hook member is hooked on a portion of the first wall of the second energy storage module to suspend the first energy storage module to the second energy storage module.

A first part of a side frame as a vehicle frame structure includes: a pair of opposed wall portions extending in a front-rear direction of a vehicle body; a coupling wall portion extending in the front-rear direction of the vehicle body and coupling the pair of opposed wall portions to each other; a straight rib and a V-shaped rib as a plurality of bridging ribs formed so as to couple the pair of opposed wall portions to the coupling wall portion; and a fragile portion formed on the opposed wall portions and / or the coupling wall portion. The fragile portion is formed to be located between two adjacent ones of the bridging ribs in the front-rear direction of the vehicle body.