756results about How to "Improve handling" patented technology

The invention discloses an intelligent suspension control system based on complex road condition recognition, relates to the technical field of automobile damping adjustment, and solves the technical problems that the system is difficult to adapt to complex and changeable road conditions, suspension parameters cannot be accurately adjusted in real time according to actual road conditions, and the performance of a vehicle under the complex road conditions is limited. After the road condition information acquisition module acquires data of various sensors, the road condition comprehensive identification and analysis module deeply analyzes the data and judges that a vehicle is in a curve or straight driving state, and when the vehicle is driven on the curve, the curve intelligent analysis module determines whether the vehicle is in a curve or straight driving state according to information such as the steering angle, the quality, the vehicle speed and the turning radius of the vehicle. The turning centrifugal force and the heeling moment are calculated by means of a vehicle dynamics model, the adaptive heeling rigidity and damping requirements are determined accordingly, current suspension parameters are compared, the hydraulic oil and damping hydraulic oil flow and pressure adjusting amount are calculated, and precise suspension regulation and control, vehicle heeling reduction and curve control stability strengthening are achieved.

The invention belongs to the technical field of ship control motion prediction, and discloses a ship control motion real-time prediction method and system based on a fusion technology. According to the method, standardization processing is carried out on ship motion data and marine environment data, the marine environment data and the ship motion data are enabled to be input into a constructed ship motion prediction model based on a Transform architecture in the same numerical range, a sliding time window technology is used, online gradient updating is carried out, and the method adapts to new data features; a physical loss item is introduced, and an improved ship motion prediction model based on a Transform architecture is obtained; and carrying out optimization verification to finish nonlinear ship control motion prediction. According to the method, the defects of a traditional model in the aspect of nonlinear processing can be overcome, the reliability of a data driving model can be improved through physical constraints, and powerful technical support is provided for operation control and safe navigation of intelligent ships in the future.

The invention relates to the technical field of power-assisted robots, in particular to a self-adaptive control lower limb hydraulic power-assisted exoskeleton robot system which comprises a waist supporting device, a leg supporting device, a foot supporting device, a hydraulic power-assisted assembly, an attitude sensor, a lower limb force sensor, a wearable electromyogram sensor, a step obtaining module and a data analysis module. The system can intelligently adjust the output power of the hydraulic power assisting assembly according to the motion posture of the exoskeleton, the pressure data of the foot supporting device and the wearing target muscle state so as to provide proper walking assisting power and bearing support, and the system can further conduct secondary adjustment and fatigue alarm by monitoring the pace frequency and the muscle fatigue degree in real time. The exoskeleton assisting power output power in the carrying process is gradually adjusted according to the comparison result between the weight of the wearing target and the weight of the to-be-moved object, so that assisting power provided by the exoskeleton robot is effectively matched with the weight of the to-be-moved object when the wearing target carries the object.

The invention discloses a heavy commercial vehicle yaw control system with delay compensation and slip suppression. A state sensing unit collects signals and sends data to a yaw control unit and a braking force control unit. The yaw control unit acquires a desired yaw moment and a braking moment. A yaw velocity tracking module calculates a desired yaw velocity. And the wheel slip suppression module obtains a brake torque for avoiding slip through control. The braking force control unit addresses braking force distribution under yaw moment control and wheel slip suppression, and compensates for the delay of the pneumatic brake system. And the braking force cooperative distribution module calculates the expected braking chamber pressure of each wheel according to the required yawing moment and the braking moment. The braking force delay compensation module calculates and predicts the pressure of a braking chamber through a prediction model, and obtains control input of a braking actuator through a PID controller so as to compensate delay. According to the system, the driving safety of the heavy commercial vehicle under the complex road condition is improved through cooperative control.

The invention relates to a hydraulic system of a steering mechanism, the steering mechanism and engineering machinery, the hydraulic system of the steering mechanism is used for controlling forward running steering and reverse running steering of a vehicle, and the hydraulic system of the steering mechanism comprises a hydraulic pump (1); the unloading valve group (2) is arranged on an oil supply path of the hydraulic pump (1), and the unloading valve group (2) is configured to release the pressure of the hydraulic oil; the proportional control valve group (3) is arranged on a working oil way of the unloading valve group (2), and the proportional control valve group (3) is configured to control the steering direction and the steering angle of the first steering axle (10) and the steering angle of the second steering axle (20); the flow amplification valve group (4) is arranged between the proportional control valve group (3) and the steering oil cylinder (5), the flow amplification valve group (4) and the steering oil cylinder (5) are both located on a working oil way of the proportional control valve group (3), and the flow amplification valve group (4) is configured to amplify the flow of hydraulic oil entering the steering oil cylinder (5).

The invention provides a flow control method and system for a hydraulic accessory of an electric excavator and the electric excavator, and relates to the technical field of engineering machinery. The method comprises the following steps: acquiring input gear information and a maximum flow value; according to the motor rotating speed corresponding to the gear information and the maximum flow value, the maximum value of the required displacement is determined; oil supply modes of main pumps of the hydraulic system are determined according to the maximum value of the required displacement, the oil supply modes of the main pumps comprise a single-pump oil supply mode and a double-pump oil supply mode, and the main pumps comprise a front pump and a rear pump; according to the voltage of the handle dial wheel and the maximum value of the required displacement, the current required displacement is determined; and according to the oil supply mode of the main pump and the current required displacement, the output currents of the front pump and the rear pump are determined, and the opening degree of the corresponding reversing valve is controlled according to the output currents of the front pump and the rear pump. According to the method, the flow adjusting range can be widened, the flow can be accurately and gently controlled, and controllability is effectively improved.

The invention discloses a three-dimensional space velocity field measuring device and method suitable for a helicopter nozzle, and belongs to the technical field of aerodynamics test. The problems that in the prior art, a traditional three-dimensional velocity field measuring device and method are complex in arrangement and low in calculation efficiency are solved. A scanning type measuring device is built, a laser plane is calibrated, internal and external parameters of a double-exposure camera are calibrated, a checkerboard calibration plate is used for building a standard space plane grid, and a high-precision translation table is controlled by a computer to move to a designated position. Triggering each component through a digital pulse signal generator and synchronously controlling the two double-exposure cameras to collect particle images when the spray pipe sprays flow; and a three-dimensional velocity field based on the particle image is determined, and a three-dimensional space velocity field of jet flow of the jet pipe is obtained. According to the invention, high-precision and high-resolution velocity field data are effectively provided, accurate measurement of the three-dimensional velocity field of the helicopter nozzle is realized, and the method can be applied to measurement of the three-dimensional velocity field of the helicopter nozzle.

The invention relates to a four-motor traction control method, device and equipment and a readable storage medium, and belongs to the field of control over vehicle transmission systems.The method comprises the steps that the target wheel speed of each wheel is calculated by obtaining the actual vehicle speed of a target vehicle at the current moment and the actual wheel speed and the wheel acceleration of each wheel; calculating the wheel speed change rate correction amount of each wheel based on the wheel acceleration of each wheel at the current moment and a plurality of historical wheel accelerations of each wheel at a set historical moment; determining the slippage control adjustment amount of each wheel and judging whether slippage occurs or not; if the wheels slip, target motor torque of the wheels is calculated based on the wheel speed change rate correction amount of the wheels and a preset motor torque calculation rule, and traction force of the wheels is controlled based on the target motor torque. According to the method, the effects of improving the traction force control precision and stability of the vehicle under different road conditions, reducing the slipping phenomenon and improving the driving safety and comfort are achieved.

The invention provides a dual-rotor water-air amphibious unmanned aerial vehicle with a plume-like electric eel structure, which comprises a main body assembly, and the main body assembly comprises a triangular bracket, a fuselage main body, an electric eel driving mechanism, a rotary connecting piece, a U-shaped clamping groove, the plume-like electric eel structure and a load platform. According to the unmanned aerial vehicle, the line-like electric eel structures are arranged on the two sides of the fuselage main body, so that the unmanned aerial vehicle can enter and exit water without an underwater propeller or mode switching, and the structures are low in movement energy consumption, so that the unmanned aerial vehicle has the capability of working for a long time and can be flexibly switched between an air mode and a water mode; meanwhile, the system has excellent performances such as ultra-silence, high endurance and high efficiency; according to the invention, the attitude control is realized through a double-rotor structure consisting of the waterproof brushless motor, the output shaft and the folding propeller assembly and through the tilting mechanisms which are mounted front and back, the tilting mechanisms enable the rotors to deflect, different attitudes and motions can be realized through different tilting directions and tilting speeds, and the attitude stability and the motion control are enhanced.

The invention relates to the technical field of tire simulation design, in particular to a tire pattern longitudinal groove edge optimization design method and system and a computer program product. The method comprises the following steps: extracting actual grounding pressure data of a tire; establishing a pattern block geometric plane model, and applying proper boundary conditions; according to the condition of non-uniform grounding pressure distribution, the shape of the contact surface of the pattern block is adjusted to realize uniform distribution; the grounding pressure distribution of the edge of the pattern block is optimized by minimizing a grounding pressure skewness value; and finally, calculating and adjusting the outer contour curve of the tire to realize final optimization design. According to the method, the road holding force, the controllability and the driving stability of the tire can be remarkably improved, the service life is prolonged, the modeling and calculation time is relatively low, and the design and development cost is remarkably reduced.

The invention provides a non-contact type multi-direction input rocker potentiometer. The non-contact type multi-direction input rocker potentiometer comprises a base, a cover shell, a metal piece, a supporting frame, a magnetic piece, a reset spring, a rocker structure, a non-contact type Hall sensor and an FPC board. The cover shell covers the base to form an assembly space, and the reset spring is arranged in the assembly space and is coaxial with the rocker structure; an avoiding hole for the rocker structure to move is formed in the top of the cover shell; the FPC board is installed at the bottom of the inner cavity of the base, and the non-contact Hall sensor is correspondingly installed on the FPC board; the support frame correspondingly penetrates through the FPC board through a positioning pin and is connected with the base; the upper surface of the supporting frame is coaxially provided with a metal piece containing groove for containing metal pieces. A sensor accommodating groove for accommodating the non-contact Hall sensor is coaxially formed in the bottom of the support frame; and the magnetic piece is correspondingly arranged at the lower part of the inner cavity of the rocker structure and is coaxial with the non-contact Hall sensor. The rocker can accurately find the gauge midpoint, the resetting accuracy is high, and the pressing hand feeling is good.

The invention provides a double-valve shock absorber and a suspension system.The shock absorber comprises a liquid storage barrel and a piston rod, an energy storage device cavity and a working cylinder are arranged in the liquid storage barrel, the interior of the working cylinder is divided into a recovery cavity and a compression cavity through a piston on the piston rod, and a safety valve is arranged on the piston; a bottom valve is arranged on the working cylinder; a rebuilt valve and a compression valve are arranged outside the liquid storage cylinder, the rebuilt valve comprises a first one-way electromagnetic valve and a rebuilt oil cavity, the rebuilt oil cavity is communicated with a rebuilt cavity, the rebuilt oil cavity is communicated with the energy storage device cavity through the first one-way electromagnetic valve, the compression valve comprises a second one-way electromagnetic valve and a compressed oil cavity, and the compressed oil cavity is communicated with the energy storage device cavity. The compressed oil liquid cavity is communicated with the recovery cavity through a second one-way electromagnetic valve, and the recovery oil liquid cavity is communicated with the compressed oil liquid cavity through conveying equipment. Stepless damping adjustment can be achieved, the wheels can be actively lifted, damping can be adjusted in real time according to different driving conditions when a vehicle is applied, the height of a vehicle body is adjustable, and the driving experience is optimized.

The invention discloses a wall surface self-adaptive wheel type magnetic adsorption pipeline wall-climbing robot, which relates to the technical field of intelligent machinery and comprises a vehicle body, a passive self-adaptive device, a driving device, a permanent magnet adsorption magnetic wheel group and a sensing device, through mutual cooperation of the passive self-adaptive device, the driving device, the permanent magnet adsorption magnetic wheel set and the sensing device, the problem that when the wheel type magnetic adsorption wall-climbing robot walks on an uneven working face, the rotating speeds of all wheels are not synchronous can be solved; the wheel type magnetic adsorption wall-climbing robot smoothly walks on the working face and crosses the external corner of the pipeline, the use reliability of the robot is improved, then the working efficiency of the robot is improved, the front and back network cameras can transmit image information in the pipeline in real time, and an operator can conveniently monitor and adjust the working state of the robot.

The utility model discloses an automatic carrying device for electric power engineering materials, which belongs to the technical field of automatic carrying devices and comprises a cart and connecting plates, the upper surface of the cart is fixedly connected with the connecting plates, and a cable fixing component is arranged between the connecting plates. A cable winding and unwinding assembly is arranged on the outer surface of the connecting plate. A cable roll can be fixed through mutual cooperation of the driving motor, the arc-shaped clamping plate, the two-way lead screw, the sleeve and the sliding rod, the fixed cable roll is easily moved to a needed working position through the cart, carrying operation of the cable roll is greatly facilitated, the cable roll releases a cable through mutual cooperation of a circular groove in the arc-shaped clamping plate and a rolling shaft, and the cable roll is convenient to use. Therefore, friction between the cable and the arc-shaped clamping plate is reduced, the cable releasing process is smoother, the cable is effectively prevented from being wound and knotted, and the problem that a traditional fixing assembly cannot smoothly release the cable when fixing a cable roll is solved.

The invention discloses a double-motor hydraulic mechanical stepless speed change transmission system and method, and relates to the technical field of stepless speed change transmission. The output end of an input shaft module is connected with the input end of a power output shaft module and the input end of a hydraulic pump shaft module, and a motor shaft driven gear is meshed with the output end of the input shaft module; the motor shaft driven gear is coaxially connected with the two hydraulic motors, the output end of the hydraulic pump shaft module is connected with the two hydraulic motors, the two hydraulic motors are connected with the input end of the motor shaft sun gear, and the motor shaft sun gear is meshed with the forward planet assembly and the backward planet assembly. The motor shaft driving gear is connected with the forward planet assembly and the backward planet assembly, the forward clutch is connected with the forward planet assembly, the backward clutch is connected with the backward planet assembly, the motor shaft driving gear is further meshed with the output shaft module, and the output end of the output shaft module is used for being connected with a front drive axle and a rear drive axle. The transmission efficiency, the control performance and the working efficiency can be improved.

The invention discloses a drive-by-wire steering system of a mining dump truck. The drive-by-wire steering system comprises a touch feedback device, a steering control valve, a steering mechanism, a steering angle sensor, a vehicle speed sensor and a controller. The touch feedback device is arranged on the lower portion of the steering wheel, connected with the controller through a CAN bus and used for detecting the rotation angle of the steering wheel and sending a generated rotation angle signal to the controller; the steering control valve is connected with the signal input end of the steering mechanism through a signal line and connected with the controller through a CAN bus, and an output port of the steering control valve is connected with the steering mechanism through a pipeline, receives control signals of the controller and outputs hydraulic flow to the steering mechanism. And the controller forms a control signal according to the deflection angle signal and the driving speed signal. The invention further discloses a mining dump truck and a steer-by-wire method. A hydraulic physical pipeline between the steering wheel and the steering valve is omitted, and steering is achieved in a drive-by-wire mode.

The invention discloses a linear motor shock absorber, belongs to the field of vehicle shock absorbers, and aims at improving the shock absorption performance adjusting capacity. Comprising an upper connecting structure, a spring, an oil storage barrel, a working cylinder and a piston rod, the bottom end of the working cylinder is connected with a compression valve, the working cylinder and the compression valve are arranged in the oil storage barrel, a sliding pair is formed between the piston in the working cylinder and the working cylinder in the axial direction of the working cylinder, the top end of the piston rod is connected to the upper connecting structure, and the bottom end is inserted into the working cylinder and connected to the piston; the spring is telescopically arranged in the vertical direction and is connected between the upper connecting structure and the oil storage barrel; the device is characterized in that the outer wall of the oil storage cylinder is connected with a permanent magnet; the periphery of the oil storage cylinder is sleeved with a motor shell, and a motor coil is arranged on the inner wall of the motor shell; and the motor shell is movably matched with the motor shell along the vertical direction. According to the novel linear motor shock absorber, the linear motor is integrated on a traditional shock absorber, the brand-new linear motor shock absorber is formed, the driving stability and comfort can be improved, and the linear motor shock absorber can achieve rapid and accurate control over a vehicle suspension system.

The invention discloses a magnetic catheter, an intervention device and a catheter intervention method.The magnetic catheter comprises an inner-layer tube and an outer-layer tube which are arranged in a nested mode to form the inner diameter and the outer diameter of the magnetic catheter, a middle layer is fixedly embedded between the inner-layer tube and the outer-layer tube, and the middle layer is an elastic layer and can be bent in the circumferential direction; the thrust effect can be transmitted and delivered along the axial direction; the magnetic part and the developing part are both arranged at the front end of the magnetic catheter in the advancing direction, the magnetic part has single polarity, and the developing part is used for improving the detectability of the magnetic catheter under rays. The inner-layer tube, the outer-layer tube and the middle-layer structure are combined to form a main body structure of the magnetic catheter, so that the catheter has supporting performance, pushing performance and bending adjusting performance, meanwhile, through the magnetic part and the developing part, the end of the catheter can be clearly observed, a non-contact magnetic field force turning effect is provided for the catheter, and the magnetic catheter can be conveniently used. The compatibility of the magnetic catheter is improved, the operation convenience is improved, and the operation difficulty of the operation is reduced.

The invention discloses a six-shaft simple electric control speed change clutch sheet type electric driving system which comprises a power input mechanism, a speed change assembly and a two-shaft power output mechanism, and a power input shaft, a speed reduction shaft assembly, a reverse gear shaft mechanism and the two-shaft power output mechanism of the speed change assembly are arranged on the periphery of a main shaft in the circumferential direction. And the structure is simple and reliable, the expansibility is excellent, and various functional modules such as human-controlled reversing, inertial reversing and active upshift and downshift according to real-time power can be flexibly expanded according to actual requirements. The motor can always and efficiently keep working in the current high-efficiency area according to the change of the driving intention, a multi-parameter control strategy with the consciousness and intention of people as priority is achieved, and harmony and unification of people, vehicles, roads and running resistance / running loads are achieved. The important scientific and engineering technology common key problem of traction / driving force-running resistance / load efficient and accurate balance control is solved.

The invention discloses a vehicle control method, a vehicle controller and a vehicle, and the vehicle control method comprises the steps: obtaining steering wheel angle information and yaw angle information of the vehicle, and obtaining an interference value according to the steering wheel angle information and the yaw angle information; and when the interference value is larger than or equal to the first preset interference value, the brake execution unit is controlled to apply braking force to at least one wheel so as to reduce the interference value. According to the vehicle control method, the steering wheel angle information and the yaw angle information of the vehicle are monitored in real time, the interference value is calculated according to the information, and response can be made rapidly and accurately when the vehicle is subjected to external interference such as crosswind. When the interference value exceeds the first preset interference value, the braking execution unit applies braking force to the wheels so as to reduce the interference value and keep the stability of the vehicle. The controllability and safety of the vehicle under the crosswind condition are improved, and the operation difficulty of a driver under the emergency situation can be effectively reduced.

The invention relates to the field of robot operation and deep learning model algorithm design, in particular to a robot operation method and system based on a waypoint perception world model.The robot operation method comprises the steps that firstly, operation information of a robot is collected, and the operation information comprises an observation image, current state information of the robot and an instruction given by a user; the operation information is input into a preset waypoint sensing world model, the model generates waypoint information of the robot based on input, the waypoint information and state information of the robot are used for calculating motion information of the robot through a preset motion prediction module, the calculated motion information of the robot is combined with the waypoint information, and the motion information of the robot is obtained. According to the method, the waypoint sensing world model captures key information, and good generalization ability is kept in a changing scene.

The invention discloses a shock absorber control method and device, a vehicle and a storage medium, and the method comprises the steps: determining the driving road surface working condition of the vehicle according to the unsprung acceleration of the vehicle, and controlling a shock absorber of a suspension system on the vehicle according to the special road surface working condition when the driving road surface working condition is the special road surface working condition; according to the method, the running road surface working condition is judged through the unsprung acceleration, when it is recognized that the vehicle runs on the special road surface, namely the special road surface working condition is recognized, the suspension shock absorber is controlled according to the special road surface working condition, decoupling of the common road surface working condition and the special road surface working condition is achieved, and the shock absorber is controlled according to different road conditions; the damping force of the shock absorber is changed according to the requirement of the whole vehicle performance, a road surface with large mutability can be effectively dealt with, the control precision of a suspension is improved, and therefore the driving comfort and operation stability of the vehicle are improved.

The invention discloses an electric vehicle thermal management system which comprises a refrigerant management module, a passenger compartment thermal management module, a battery pack thermal management module, an electric drive thermal management module and a low-temperature radiator module, wherein the passenger compartment thermal management module, the battery pack thermal management module, the electric drive thermal management module and the low-temperature radiator module are communicated with a twelve-way valve. The refrigerant management module is provided with a hot gas bypass branch, the hot gas bypass branch is provided with an electromagnetic valve with the opening degree capable of being controlled, and connection or disconnection between the refrigerant module and the passenger compartment heat management module, the battery pack heat management module, the electric drive heat management module and the low-temperature radiator module and the working mode of the refrigerant management module are completed by combining a twelve-way valve. High integration of an electric automobile heat management system can be achieved, normal work of a heat pump under the extremely low temperature working condition is guaranteed, the heating capacity is improved, and the problem that a compressor is frequently started and stopped during refrigeration is solved. The invention further provides a control method of the electric vehicle thermal management system.

The invention relates to the technical field of farming machinery, in particular to a multifunctional mini-tiller which comprises a rotary tillage tool bit and a switching mechanism, the rotary tillage tool bit is rotationally installed on a machine body and comprises a driving shaft and two rotary tillage tool sets, the driving shaft is in transmission connection with an engine, and the rotary tillage tool sets are symmetrically installed at the two ends of the driving shaft; the rotary blade group comprises a plurality of blades which are arranged in the annular direction of the driving shaft, handle parts of the blades are provided with inserting grooves, the switching mechanism comprises a plurality of limiting parts which are arranged corresponding to the blades, when the limiting parts are inserted into the corresponding inserting grooves, the corresponding blades are locked for rotary tillage work, and when the limiting parts are separated from the inserting grooves, the corresponding blades are adjusted in a floating mode. According to the invention, through the cooperation of the rotary tillage tool bit and the switching mechanism, the effect of flexibly adjusting the working state of the blade under different working conditions is achieved, the obstacle is effectively avoided, the damage risk of equipment is reduced, the maintenance cost and the downtime are reduced, and meanwhile, the safety of operators is also ensured.

The utility model discloses an automobile engine expansion type suspension which comprises automobile engine expansion type suspension bodies, a locking assembly is fixedly installed between the two automobile engine expansion type suspension bodies, an engine is detachably installed in the locking assembly, and fixed contact points of the locking assembly and the engine are distributed in a triangular shape. And therefore, the engine can be triangularly fixed. Through the arrangement of the locking component, the engine can be triangularly fixed, the vibration and displacement of the engine can be effectively prevented through the triangular fixation, a stable triangular structure is formed, stronger supporting force is provided, and further the risk of failure and damage of the engine can be reduced.

The invention provides an automobile hybrid power system and an automobile, the automobile hybrid power system comprises a front driving force system, a rear driving force system and a power battery, the front driving force system comprises an engine, a first clutch, an input shaft gear, a front driving motor, a front driving differential component and a second clutch; the engine is connected with the first clutch, and the first clutch is connected with the front-drive motor through the input shaft gear. The input shaft gear is connected with the front-drive differential-reduction assembly, and the front-drive differential-reduction assembly is connected with a front wheel. The second clutch is arranged at a position between the first clutch and the front wheel; the rear driving force system comprises a rear driving motor and a rear driving differential reduction assembly. One end of the rear drive differential reduction assembly is connected with the rear drive motor, and the rear drive differential reduction assembly is connected with the rear wheel; the front-drive motor and the rear-drive motor are both connected with the power battery, so that series connection, parallel connection, front-drive braking energy recovery, range extension and pure electric drive modes of the engine and the front-drive motor are achieved, and the automobile enters different running modes.

The utility model relates to the technical field of medical instruments. The utility model provides a surgical intervention glove which is characterized by comprising a protection part and an operation part, the operation part is arranged at the positions, corresponding to the thumb, the index finger and the middle finger of the human body, of the operation intervention glove; the protection part is an area, except the operation part, on the surgical intervention glove; and the thickness of the operation part is smaller than that of the protection part. On the second aspect, the utility model further discloses a hand mold for manufacturing the surgical intervention glove, and the hand mold comprises an operation surface and a protection surface; the operation surface is the outer surface, corresponding to the operation part of the operation intervention glove, on the hand mold; the protective surface is the outer surface, corresponding to the protective part of the surgical intervention glove, on the hand mold; and the protective surface has stronger calcium ion adsorption capacity relative to the operation surface.

The invention belongs to the technical field of transport vehicles, and particularly relates to a gooseneck hydraulic steering device and a transport vehicle, the gooseneck hydraulic steering device comprises a gooseneck frame, a swing mechanism, a hydraulic cylinder A and a hydraulic cylinder B. The swing mechanism is eccentrically provided with a pin shaft and is hinged with a connecting rod through the pin shaft, and the rear end of the connecting rod is hinged with a swing arm; the middle of the swing arm is hinged to a fixing base in the middle of the gooseneck frame, and the two ends of the swing arm are hinged to the hydraulic cylinder A and the hydraulic cylinder B respectively. The problem that the overall height of the gooseneck is difficult to control due to the structural layout of a hydraulic oil cylinder is solved, a transport vehicle can better adapt to the height limiting requirement of road transportation, the trafficability of the transport vehicle under the complex road condition is improved, the size of loadable goods is further increased, and the transportation cost is reduced. The transportation efficiency and flexibility of the transportation vehicle are guaranteed, meanwhile, the steering sensitivity is improved, the steering accuracy is guaranteed, and the transportation vehicle is more stable and safer in the running process.

The invention relates to the technical field of computers, in particular to a vehicle torque control method, device and equipment, and the method comprises the steps: obtaining a corresponding speed difference between front and rear wheels through the speed difference between the front and rear wheels of a target vehicle, and adjusting the torque of the target vehicle according to the total demand torque and the speed difference between the front and rear wheels of the target vehicle when the target vehicle meets a torque adjustment condition; and adjusting the front and rear axle torques of the target vehicle to obtain target front and rear axle torques. Thus, by monitoring the speed difference of the front and rear wheels of the vehicle in real time, when the vehicle possibly slips or steers unstably, the torque of the front and rear shafts is dynamically adjusted and distributed in a balanced mode through feedback control in time so as to cooperate with the front and rear shafts to work, the out-of-control risk caused by slipping or insufficient adhesive force of the vehicle is reduced, and stable running of the vehicle is guaranteed; the situation that the vehicle slips excessively or the road holding force is insufficient under different terrains or complex road conditions is effectively avoided, and the control performance, safety and stability of vehicle driving are improved.

The utility model discloses a new energy bus tire pattern and a tire thereof, and the new energy bus tire pattern comprises three longitudinal grooves which are longitudinally distributed on a tire tread in a surrounding manner, and each longitudinal groove is in a continuous multi-fold line structure shape; the transverse grooves are formed in the tire middle pattern blocks between the adjacent longitudinal grooves, and each transverse groove is of a V-shaped structure; the tire middle longitudinal grooves are communicated between the adjacent transverse grooves; and the tire middle transverse groove is communicated with the tire middle longitudinal groove in a crossed manner, and two ends of the tire middle transverse groove are respectively communicated with the corresponding longitudinal grooves. Compared with the prior art, the utility model has the beneficial effects that: by improving the groove structure design, the improved groove structure has better controllability and wear resistance.