53 results about "Downforce" patented technology

This utility model belongs to the technical field of new energy vehicle horn frame technology, and particularly relates to a dual-station dimension inspection device for new energy vehicle horn frames. It includes a body, with four evenly distributed sliding grooves on one side of the upper wall and three evenly distributed sliding grooves on the other side. Movable blocks slide within the sliding grooves, and detachable detection columns are mounted on the top surface of the movable blocks. A gantry frame is fixedly mounted on the top surface of the body, with two guide rods sliding within the upper arm of the gantry frame. A pressure plate is fixedly mounted at the lower end of the guide rods, and two uprights are fixedly mounted on the top surface of the gantry frame. A scale is provided on the front of each upright. This utility model allows for the inspection of mounting holes for horn frames of different specifications by adjusting the position of the detection columns. A spring applies downward pressure to the pressure plate, causing the bottom surface of the pressure plate to press firmly against the top surface of the horn frame. The pointer on the scale indicates the thickness of the horn frame.

The application discloses a vehicle model self-adaptive intelligent front wheel air resistance plate system, and belongs to the technical field of automobile aerodynamics optimization. The vehicle model self-adaptive intelligent front wheel air resistance plate system comprises a parameter sensing layer, an intelligent decision layer and an execution control layer. The parameter sensing layer is used for collecting sensing parameters in real time. The intelligent decision layer is used for calculating a minimum wind resistance coefficient, maximizing a downforce and completing adjustment within a response time constraint, and forming a control instruction based on the sensing parameters by using a deep reinforcement learning algorithm under given vehicle model characteristics and working conditions. The execution control layer is used for executing the control instruction. The front wheel air resistance plate is dynamically adjusted under the action of the execution control layer. The disclosed system realizes dynamic adjustment of parameters such as curvature, thickness and chord length by combining multi-dimensional parameter sensing, intelligent decision and execution control three-layer optimization architecture and self-adaptive curved surface material, so that optimal wind resistance and lift control can be realized under various vehicle models and complex working conditions.

This invention discloses an anti-theft manhole cover for municipal engineering water supply and drainage, belonging to the field of municipal engineering technology. It includes a manhole base, a manhole cover body, a shock-absorbing rubber strip, a locking mechanism, and a concealed anti-theft unlocking component. The inner wall of the manhole base has a V-shaped groove, into which a shock-absorbing rubber strip with an internal buffer air chamber and anti-detachment ribs is embedded, significantly improving shock absorption, noise reduction, and self-cleaning performance through aerodynamic effects. The locking mechanism is located at the bottom of the manhole cover. Its pressure-bearing transmission component, when subjected to vertical vehicle loads, converts downward pressure into horizontal thrust, forcing the locking tongue to engage in the locking hole of the manhole base, preventing the manhole cover from eccentric jumping and circumferential rotation. The anti-theft unlocking component uses a concealed rotating rod with a dustproof camouflage cover to retract the linkage cable, pulling the locking tongue back to achieve manual unlocking. This achieves the linkage of adaptive locking, pneumatic buffering, and mechanical anti-theft, thereby eliminating the "road trap" hazard and extending the component's lifespan.

A row cleaner assembly includes an upper subframe mounted to an agricultural planter forward of the planter row unit and longitudinally aligned with the trench opening assembly. A lower subframe rotatably supports first and second row cleaner wheels. An intermediate subframe is pivotally connected at a forward end to the upper subframe and is pivotally connected at a rearward end to the lower subframe. A first and second linkages are pivotally connected at a forward end to the upper subframe and are pivotally connected at a rearward end to the lower subframe. An actuator system is capable of applying a downforce and an optional lift force to the lower subframe. The row cleaner assembly may include a gauge wheel supported by a rear strut subframe. The row cleaner assembly may include a depth selector to change the depth of penetration of the row cleaner wheels into the soil surface.

The application discloses an automobile spoiler assembly and an automobile, and relates to the technical field of automobile aerodynamic outer decoration. The assembly comprises a lightweight composite outer decoration base body, a self-adaptive deformation wing plate, a flexible connecting support and a noise reduction component. The self-adaptive deformation wing plate is made of a memory alloy composite material and is internally provided with heating wires. The self-adaptive angle adjustment is realized by temperature control without the use of a motor and hydraulic drive. The low-speed flatness reduces wind resistance, and the high-speed bending increases the downforce. Meanwhile, the self-adaptive deformation wing plate can be heated to remove ice and snow. The flexible connecting support limits the deformation range, and the base body is embedded with a microporous sound-absorbing layer to absorb airflow noise. The application integrates the functions of self-adaptive deformation, active noise reduction and heating and ice removal. The structure is simplified, the failure rate is low, the lightweight strength is high, the application is suitable for full-condition driving and multi-model assembly, and the problems of poor working condition adaptation, large wind noise, complex structure and easy icing in winter of the traditional spoiler are effectively solved.

The vehicle includes a frame configured to pivot with respect to a support surface over both positive and negative roll angles, and wheel supports coupled to the frame. The wheel supports include axle mounting portions. An axle defining the axis of rotation is mounted to the wheel supports at the axle mounting portions. A downforce generating system is mounted to the wheel supports between the frame and the axle mounting portions. The downforce generating system includes a wing support mounted to the wheel supports and a downforce generating wing pivotably mounted to the wing support. The downforce generating wing includes an aerodynamic surface with a leading edge. The downforce generating system is configured to maintain a substantially horizontal attitude of the leading edge with respect to the support surface when the frame pivots between positive and negative roll angles.

The air spoiler mounting structure according to the present application is capable of changing the angle of attack of the air spoiler according to the speed of the vehicle without mounting a motor and a power transmission mechanism. The air spoiler mounting structure comprises: an air spoiler configured at the upper portion of a vehicle body and generating a downforce when the vehicle is running; an upper support extending downward from the center portion of the air spoiler in the vehicle width direction; a lower support extending upward from the vehicle body; a first wire connecting the lower end of the upper support and the upper end of the lower support and supporting the weight of the air spoiler and the upper support; a second stretchable wire connecting the left front portion of the air spoiler and the vehicle body; a third stretchable wire connecting the left rear portion of the air spoiler and the vehicle body; a fourth stretchable wire connecting the right front portion of the air spoiler and the vehicle body; and a fifth stretchable wire connecting the right rear portion of the air spoiler and the vehicle body.

The utility model relates to the technical field of detection sampling, and disclose a kind of detection sampling device for road construction, including power component, the both sides of power component bottom are uniformly connected with lifting support component, the power component includes first fixed plate, the both sides of first fixed plate top are uniformly connected with U type down pressure handle, the top of first fixed plate is fixedly connected with servo motor, the output shaft of servo motor is fixedly connected with transmission rotating shaft;The utility model when carrying out sampling work, worker only needs to hold U type down pressure handle and press down, so that lifting plate and lifting limit plate move to the bottom of square telescopic groove, and then make spring be compressed, equipment can be kept perpendicular to road under the positioning of lifting support component, worker does not need to spend a lot of strength to ensure that equipment is perpendicular to road, after completion, worker cancels the pressure under spring self resilience effect, equipment returns to original position.

A row cleaner assembly includes an upper subframe mounted to an agricultural planter forward of the planter row unit and longitudinally aligned with the trench opening assembly. A lower subframe rotatably supports first and second row cleaner wheels. An intermediate subframe is pivotally connected at a forward end to the upper subframe and is pivotally connected at a rearward end to the lower subframe. A first and second linkages are pivotally connected at a forward end to the upper subframe and are pivotally connected at a rearward end to the lower subframe. An actuator system is capable of applying a downforce and an optional lift force to the lower subframe. The row cleaner assembly may include a gauge wheel supported by a rear strut subframe. The row cleaner assembly may include a depth selector to change the depth of penetration of the row cleaner wheels into the soil surface.

This invention belongs to the field of ramjet engine direct-drive testing technology. It provides a ramjet engine direct-drive testing method based on operating condition adaptation and control, comprising: during the ramjet engine direct-drive test, gradually adjusting test parameters, performing operating condition scanning, recording combustion chamber pressure fluctuation data under each operating condition, and determining oscillation-sensitive areas; performing multiple repeated tests on each operating condition within the oscillation-sensitive area to identify the probability of pressure oscillation occurring under each operating condition within each oscillation-sensitive area, and determining high-probability pressure oscillation operating conditions; extracting high-probability pressure oscillation operating conditions, and using Fast Fourier Transform to extract the dominant frequency of the direct-drive test oscillation; this invention can effectively avoid engine shutdown, structural damage, and other failures caused by oscillations in actual flight, ensuring engine flight safety and operational stability.

A method for drift detection and control for a vehicle may include determining an intentional drift probability of the vehicle based at least in part on one or more occupant inputs. The method further may include determining an initial aero bias upper bound using a first control system. The method further may include determining an initial aero bias command using a second control system. The method further may include determining a final aero bias upper bound based at least in part on the intentional drift probability, the initial aero bias upper bound, and the initial aero bias command. The method further may include controlling one or more aerodynamic actuators of the vehicle based at least in part on the final aero bias upper bound and the initial aero bias command.

This utility model provides a cup holder assembly and a vehicle, relating to the field of automotive cup holder technology, to solve the problem of drivers finding it inconvenient to unscrew bottle caps; the cup holder assembly includes: a base, a first sliding member, and at least two second sliding members; the first sliding member is slidably connected to the base, and at least two second sliding members are distributed circumferentially along the base and are all slidably connected to the base; the first sliding member has a support portion and at least two first mating portions, and the position of the second sliding members is higher than the position of the support portion, the support portion and each of the second sliding members forming a cup receiving area; the second sliding member has a second mating portion, one of the first mating portion and the second mating portion includes a wedge surface, and the other includes an abutting mating surface, the abutting mating surface abutting against the wedge surface one by one; under the action of the downward pressure transmitted by the support portion, the first sliding member descends relative to the base, and through each wedge surface, the corresponding second sliding members move closer to each other, thus clamping the cup in the cup receiving area.

A vehicle slip control method and a related apparatus, which relate to the technical field of vehicles. The method comprises: acquiring first information; on the basis of the first information, acquiring a target active force to be output by a suspension of a vehicle; and controlling the suspension to output the target active force. The first information comprises the type of a slip road surface that the vehicle is about to pass on a first road section ahead of the vehicle, and friction coefficients between different types of slip road surfaces and the wheels of the vehicle are different. The target active force comprises a downward force that acts on one or more wheels of the vehicle and is directed toward the ground. By means of the present solution, vehicle slippage can be effectively suppressed on a road surface having a low adhesion coefficient.

The utility model provides a kind of foldable wind wing and flying car, the foldable wind wing includes rotary rudder, wind wing plate and two groups of connecting rod assemblies, each group of connecting rod assemblies includes force link, driving link, rocker, upper connecting rod, lower connecting rod and driven link, upper connecting rod is located above lower connecting rod, the driving shaft of rotary rudder is connected with the upper end of force link, the lower end of force link can be slidably matched with driving link;The front end of upper connecting rod is rotatably connected with the upper end of driven link, the rear end of upper connecting rod is rotatably connected with the upper end of rocker;Lower connecting rod front end is rotatably connected with the middle part of driven link, lower connecting rod rear end is rotatably connected with the upper end of driving link;The lower end of driven link is fixedly connected with wind wing plate, and the leading edge of flying car is provided with the leading edge opening matched with wind wing plate.The foldable wind wing of the utility model can be folded in the mode of automobile driving and flying, and can be unfolded forward in the take-off working condition to provide downward pressure.

A method for downforce control includes receiving vehicle inputs. The method includes determining a first normal-force request at the front axle and a second normal-force request at the rear axle using the plurality of vehicle inputs and a prediction model. The prediction model is a combined state space model that integrates a half-car state space model and an actuator state space model, the half-car state space model is developed using a half-car model, and the actuator state space model is developed using a neural network model. The method further includes determining a first position of the first aerodynamic body relative to the vehicle body and a second position of the second aerodynamic body relative to the vehicle body based on the first normal-force request and the second normal-force request, respectively.

The utility model discloses a kind of support mechanisms of wheel shaft dismounting device, it is related to wheel shaft dismounting field.Wheel shaft dismounting device's support mechanism includes rack, mounting plate, support seat, support piece and connecting assembly, connecting assembly includes first mounting ring, second mounting ring and elastic bandage.The arc-shaped groove of support seat top is matched with support piece, can be closely combined with wheel shaft end cylindrical surface, increase contact area, reduce rolling tendency, reduce the shaking after wheel shaft placement;Elastic bandage is flexibly bound to wheel shaft by first mounting ring, second mounting ring and connecting buckle, can be self-adaptively tightened according to wheel shaft size, by with elastic bandage across wheel shaft top, to exert elastic down pressure, constrain the displacement of wheel shaft, solve the rolling risk caused by hoisting shaking, utilize elastic bandage buffer unexpected collision energy, avoid wheel shaft bounce, improve safety.

The utility model relates to a double-layer tail wing device belongs to the technical field of automobile exterior, double-layer tail wing device includes: fixed support, first wing board, second wing board and drive assembly. First wing board activity sets up on fixed support, second wing board fixedly sets up with fixed support, drive assembly drives first wing board to lift. Still relate to a kind of vehicle, including vehicle body, vehicle body has vehicle body covering, double-layer tail wing device is set on the vehicle body covering. The first wing board can be lifted between the first position and the second position by the first wing board activity installation of the present application, when the vehicle high-speed running needs larger down pressure, double-layer tail wing structure is formed;When the vehicle is in the driving condition other than high-speed running, the first wing board and the second wing board are integrated into a whole, the adjustable double-layer tail wing structure is realized, both can meet the performance demand of vehicle under different driving conditions, and can reduce driving resistance to a certain extent, improve vehicle economy.

The utility model relates to aluminium composite board hot rolling technical field, and disclose an aluminium composite board hot rolling compound device, including outer machine case, the front and rear of outer machine case are thorough, and the inside bottom of outer machine case is installed with a plurality of lower roll from front to back in proper order, and the upper roller is provided in the just above of each lower roll, and the inside top of outer machine case is installed with a plurality of respectively connecting each upper roller's down pressure spare from front to back in proper order, and the down pressure spare is by front and rear down pressure force and gradually increases in proper order, and down pressure spare specifically includes mounting bracket, lifting platform, electric hydraulic cylinder and compression spring, and mounting bracket is as upper roller mounting structure, and electric hydraulic cylinder is installed in the top of outer machine case, and lifting platform is docked in the end of electric hydraulic cylinder piston rod, and compression spring has three corresponding installation in the left and right ends and the center position between mounting bracket and susong house lifting platform. Hot rolling compound device adopts the hot rolling technology of step by step increasing pressure through the innovative design, and effectively improves the deficiency of traditional single pressure hot rolling.

The present disclosure provides a vehicle control method and device, electronic equipment, chip and storage medium, the method comprising: determining a first opening degree of a flow guide active grille shutter (AGS) of a vehicle according to state information of the vehicle, the state information comprising a power-on state of the vehicle; adjusting the opening degree of the flow guide AGS to the first opening degree; and controlling at least one of a front-end AGS opening degree and a fan rotating speed of the vehicle according to at least the first opening degree. The joint control of the front-end AGS, the flow guide AGS, and the fan rotating speed of the vehicle can be realized, the control accuracy can be improved, and the energy consumption and the demand for downforce of the vehicle can be coordinated.

The utility model discloses an engine cabin bottom guard plate. Engine cabin bottom guard plate, include: mainboard and install the vice board in the inside of mainboard, the mainboard middle part is equipped with the reserved orifice for installing vice board, the mainboard edge is equipped with the insertion strip, is equipped with the mounting hole of mounting bolt on the insertion strip, vice board is located the inside of reserved orifice, vice board and mainboard flexible connection. The engine cabin bottom guard plate provided by the utility model can reduce the hindrance to the sinking of the engine through the flexible connection of the mainboard and the vice board, when the engine sinks, the huge downward pressure generated by the engine is transmitted to the vice board, and the vice board is pressed to move downward, the spring is elongated, and the pulling force of the spring is smaller than the downward pressure of the transmitter, so the influence on the sinking of the transmitter is smaller.

The application belongs to the technical field of forklifts, and discloses an anti-collapse auxiliary clamping device for a logistics forklift, which comprises an assembly seat and a dynamic control module. The clamping mechanism is installed on the assembly seat, and the dynamic control module is used for monitoring the state of the clamping mechanism and controlling the clamping of goods. The controller, the first torsion sensor, the second torsion sensor and the opposite light-sensing photoelectric sensor are arranged, and are matched with the first motor, the second motor and the steering wheel, so that the full-process dynamic and accurate control of the clamping operation of the equipment is realized. The judgment of the clamping force, the height of the pressing plate and the switching time of the posture does not need manual intervention, the dependence on the experience of the operator is reduced, the labor intensity is reduced, the dynamic monitoring function can respond to sudden conditions such as road bumps and gravity center deviation of goods in real time, the clamping force and the pressing force are stable, and the transfer efficiency and the operation stability are improved.

The application belongs to the technical field of safety protection, and discloses a mobile scissor lifting device and method with high safety protection, which comprises a lifting vehicle with a built-in inclination sensor. The application is characterized by the cooperation of the anti-toppling mechanism and other structures. When the protective plate is folded, the hydraulic rod drives the second protective plate to extend. The length of the first and second protective plates increases and they quickly contact the ground. The folding point of the lifting vehicle changes from the outer side of the tire to the end of the second protective plate. The force required to overturn the lifting vehicle increases, thereby effectively preventing the lifting vehicle from toppling. The positioning plate is pulled downward by the steel wire rope and is folded to adhere to the ground. The barb penetrates into the ground and provides grip for the second protective plate. The longer the distance of the compression spring, the greater the upward force applied to the steel wire rope in the opposite direction. The force pulling the positioning plate gradually increases, improving the downward pressure of the barb on the ground. After the barb completely enters the ground, the friction of the end of the positioning plate on the ground increases, and the lifting vehicle will not continue to roll over.

This invention discloses a tire transport fixing device for logistics, belonging to the technical field of transport equipment. It includes a base, with a bidirectional threaded rod horizontally rotatably mounted on the lower surface of the base. Two first sliders are threadedly connected to the bidirectional threaded rod. Each first slider has a rectangular structure, and its upper surface slides against the lower surface of the base to prevent rotation. Mounting rods are horizontally fixed to the bottom ends of both first sliders, and the two mounting rods are parallel to each other. Vertically extending limiting rods are connected to the lower surfaces of both mounting rods, and the four limiting rods together form a limiting space for accommodating the tire. This solution uses the bidirectional threaded rod to drive the limiting rods for horizontal centering and clamping, and in conjunction with an electric telescopic rod to drive a pressure plate to apply downward pressure to the tire, thereby improving stability during transport and reducing the probability of relative displacement between stacked tires.

This invention relates to the field of wind turbine maintenance, specifically to a de-icing jet control method and system for a rotating blade de-icing robot. The control method acquires the comprehensive external load vector in a rotating reference frame in real time and estimates the transient recoil vector of the pulsed jet, calculating the jet phase window that meets the fuselage adhesion torque margin requirements. During the de-icing operation within this window, the control fluid distribution component synchronously guides the high-pressure fluid to the first injection end for de-icing and to the second injection end, thereby generating transient aerodynamic downpressure within the omnidirectional convergent surface of the fuselage belly, achieving a dynamic balance between jet flow and recoil. This solution, through the coordinated control of aerodynamic stabilization and mechanical compensation, effectively mitigates the nose-up, overturning, and yaw tendencies caused by high-pressure pulses, significantly improving the adhesion reliability and operational accuracy of the lightweight robot under rotating variable load and variable curvature blade environments, without requiring additional fuselage mass.

1. The name of the design product: tail spoiler. 2. The use of the design product: for improving the downforce of the vehicle tail, improving the modeling of the vehicle tail. 3. The design points of the design product: in the perspective view. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to a vertical load controlled anti-skid management system that continuously or intermittently increases, decreases or keeps the downforce of the wheels constant on the road by changing the damping level of the shock absorber with variable damping according to the change in brake pressure and engine torque during skidding in single-axle or multi-axle drive vehicles, and thus prevents the wheels from skidding or reduces the skidding.

The utility model discloses a kind of self-adapting structures for ultrasonic flaw detection based on double-cylinder combination spring and hinge, including fixed mounting seat (1), its both sides are fixed with a group of multi-axis cylinder (2), the telescopic end of multi-axis cylinder (2) is set downward, and its cylinder joint is respectively connected with corresponding side left lower pressing frame (3) and right lower pressing frame (4), pull spring (5) is connected between fixed mounting seat (1) and left lower pressing frame (3), between fixed mounting seat (1) and right lower pressing frame (4) all, four-side frame (6) is equipped between left lower pressing frame (3) and right lower pressing frame (4), and the hole part of left and right lower pressing frame is hinged with the shaft portion of four-side frame (6) and is connected, the hole part of four-side frame (6) is again hinged with the shaft portion of self-adapting (7) for flaw detection and is connected.The utility model has the advantages that uniform pressing force is provided for self-adapting for flaw detection, the stability of self-adapting for flaw detection and plate surface coupling is guaranteed, and work efficiency and flaw detection effect are improved.

An agricultural machine includes a main frame, a rotate frame, and a row unit. A control method for the machine includes: selecting at least one of: (i) a desired position-based relationship between a portion of the rotate frame and the row unit, and (ii) a desired downforce of the row unit; determining at least one of: (i) an actual position-based relationship defined between the rearward portion of the rotate frame and the row unit, and (ii) an actual downforce of the row unit; and adjusting at least one of: (i) the actual position-based relationship toward the desired position-based relationship, and (ii) the actual downforce of the row unit toward the desired downforce of the row unit; wherein adjusting the actual position-based relationship and adjusting the actual downforce of the row both include moving the rotate frame relative to the main frame of the agricultural machine.