328results about How to "Improve driving stability" patented technology

The invention relates to the technical field of vehicle control, in particular to an unmanned vehicle control method based on deep learning, and the method comprises the following steps: collecting the multi-modal data of weak participants in a road environment in real time, and recognizing the weak participants; the behaviors of the weak participants at the next moment are predicted through multi-dimensional information fusion, and behavior intention prediction of the weak participants is carried out; the path planning and control strategy of the vehicle is adjusted in real time through the self-adaptive decision control module; and when the predicted behavior intention of the weak participant has high uncertainty or potential risk, an emergency avoidance mechanism is automatically triggered, the risk level of the current traffic environment is dynamically evaluated, an optimal avoidance path is generated, and emergency stop or detour operation is executed. According to the method, double guarantees of high-dimensional analysis of behavior intentions of participants and real-time control of vehicles are combined, and the driving safety in a complex traffic scene is ensured.

The invention relates to the technical field of driving analysis, in particular to an unmanned intelligent analysis method and system, and the method comprises the following steps: S1, collecting multi-dimensional data in real time through a vehicle-mounted sensor, a traffic information network and meteorological data, building a short-term energy consumption prediction model based on the multi-dimensional data, the short-term energy consumption prediction model predicts energy consumption fluctuation in a future driving route; s2, dynamically adjusting a driving mode of the unmanned vehicle according to an energy consumption fluctuation prediction result of the short-term energy consumption prediction model and based on a multi-mode energy efficiency optimization mechanism; and S3, through a self-adaptive friction coefficient feedback mechanism, road surface friction coefficient changes of the tires and the ground under different road conditions are dynamically evaluated, and power output and braking response of the vehicle are adjusted. Acceleration, deceleration, sliding and regenerative braking modes of the vehicle can be adjusted in real time, and it is ensured that the vehicle is in the optimal energy efficiency state all the time.

The invention discloses a path optimization control method and system based on an AGV system, and relates to the related technical field of AGV control, and the method comprises the steps: receiving a first driving path of a first guide vehicle; establishing a plurality of buffer test areas for the plurality of continuous target points according to a preset distance; extracting a first buffer test area, and obtaining a corresponding first target point; when it is detected that the first guide vehicle enters the first buffer test area for deceleration test, generating a first deceleration test result; brake control parameter optimization is carried out, and a first section brake optimization result is generated; and brake optimization control is conducted on the first road section. According to the method, the technical problems that the AGV is unstable in driving and the safety is reduced due to the fact that accurate control is difficult to carry out according to a complex and changeable environment based on fixed path planning and speed control in existing AGV path optimization are solved, accurate braking control of an AGV system is realized, and the technical effects of improving task accuracy, driving safety and stability are achieved.

The invention relates to an agricultural robot, and discloses an animal husbandry pushing robot autonomous navigation method based on a laser radar, which comprises a microsecond-level multi-sensor time synchronization architecture based on an FPGA (Field Programmable Gate Array); in a navigation layer, seamless switching between the GNSS and the laser SLAM is realized by constructing a virtual fusion observation value by utilizing extended Kalman filtering and a self-adaptive dynamic weight algorithm; in the sensing layer, an RGB-I multi-mode model fused with laser reflectivity and a biological micro-motion detection technology are adopted, and feed and biological obstacles are accurately distinguished; and in the execution layer, flexible self-adaptive material pushing is achieved in combination with material groove edge fitting and force-position hybrid control, and the navigation precision, the operation quality and the safety of the material pushing robot in the all-weather and unstructured pasture environment are effectively improved.

The embodiment of the invention provides an electric control clutch semi-combination point position self-learning method and device, and relates to the technical field of clutch control, and the method comprises the steps: controlling a motor to carry out zero position self-learning, and recording a mechanical zero position; determining that the vehicle meets a first vehicle state condition, and performing clutch semi-joint point self-learning; a semi-combination point position obtained through self-learning is stored in a memory, and current odometer data is recorded; determining whether the clutch is completely run-in; through self-learning, change of a clutch semi-joint point caused by long-time work of the clutch and semi-joint point deviation caused by manufacturing and assembling differences of the clutch are corrected, and torque transmission capacity reduction caused by fast change of the semi-joint point when running-in of the clutch in the initial life cycle is not complete is prevented. Therefore, the torque transmission accuracy of the clutch is ensured.

The invention provides a method and device for estimating the quality and speed of an electric motor coach and electronic equipment. The method comprises the steps that current operation parameters of the electric motor coach are obtained; based on the current operation parameters, a recursive least square method is combined with a pre-constructed longitudinal deviation dynamical model to conduct vehicle mass estimation, and mass estimation information of the electric motor coach is obtained; the longitudinal acceleration and the wheel rotating speed in the current operation parameters are preprocessed, and the calibrated acceleration and the wheel linear speed are obtained; the preprocessing comprises Hall effect coding processing of the wheel rotating speed and calibration processing of the longitudinal acceleration; and based on the calibration acceleration and the wheel linear speed, vehicle speed estimation is carried out by adopting a nonlinear digital hybrid filtering algorithm in the current state of the electric motor coach, and vehicle speed estimation information of the electric motor coach is obtained. The real-time estimation precision of the vehicle quality and the vehicle speed is improved, so that the response speed and reliability of a vehicle control system are improved, and the driving safety and stability of the electric motor coach under various complex road conditions 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 discloses a vehicle-mounted camera shooting management method and system, and particularly relates to the technical field of image communication, and the system comprises an intelligent image collection processing module which is used for synchronously collecting high-quality image data through a plurality of cameras and carrying out the preprocessing of the image data, and a vehicle-mounted camera shooting management module which is used for carrying out the real-time analysis and recognition of the collected image data, and the real-time image analysis and identification module is used for extracting useful information and providing real-time feedback according to an analysis result. Through efficient image acquisition, real-time analysis, data management and intelligent auxiliary driving functions, the driving safety, the driving stability and the data management efficiency are remarkably improved. The system utilizes a multi-camera synchronization technology and a convolutional neural network denoising algorithm to ensure that high-quality images are captured in various environments, and a dynamic range adjustment module optimizes the image quality under different illumination conditions.

The invention discloses a multi-channel fluid valve and a control method thereof, and relates to the technical field of valves. The multi-channel fluid valve comprises a valve body, a valve core and a valve core, the driving assemblies are oppositely arranged on the two sides of the valve body in the first direction; the valve element assemblies are connected with the output ends of the driving assemblies respectively, and the tail ends of the valve element assemblies are arranged in the flow channel holes of the valve body respectively. The multi-channel fluid valve solves the problems that control of an existing multi-channel fluid valve generally depends on manual operation or a simple electromagnetic operation mechanism, and many limitations exist: firstly, the manual control mode is not only inconvenient to operate, but also prone to cause misoperation due to human factors, so that the safety and stability of a system are affected; and secondly, the problems that the control modes are insufficient in precision and flexibility, complex and multi-thread fluid distribution and switch adjustment requirements are difficult to meet, and the requirements of the modern industry for autonomous design and precision control cannot be met are solved.

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 provides a double-output air cylinder which comprises a cylinder body, a cylinder cover, a piston, a piston rod and a piston rod. A cavity is formed in the cylinder body, a partition plate is arranged in the cavity, and the partition plate divides the cavity into a front cavity and a rear cavity; the piston assembly comprises a first piston arranged in the front cavity in a sliding fit mode and a piston rod arranged on the head portion of the first piston, and the piston rod extends out of the cylinder body and serves as a first output end. The rotating assembly comprises a rotating assembly body arranged in the rear cavity, a driving shaft is arranged on the rotating assembly body, and the driving shaft penetrates through the partition plate, is in rigid connection with the first piston and can drive the piston rod to rotate in the radial direction. The double-output air cylinder is compact in structure, small in size, capable of adjusting the output shaft at any angle, high in adjusting precision, reliable and stable to use, particularly suitable for mechanical arms of non-standard equipment, and wide in application range, and has a self-locking effect.

The embodiment of the utility model provides a transfer robot and a driving wheel set thereof, the driving wheel set of the transfer robot comprises a swing arm transverse plate, two supporting vertical plates, two frame hinge shafts, two trundles, two driving wheels and a steering wheel assembly, the two sides of the bottom of the swing arm transverse plate are respectively and vertically provided with the supporting vertical plates, the two supporting vertical plates are provided with two frame hinge shafts in a one-to-one correspondence mode, and the two frame hinge shafts are located on the first axis. The two trundles are arranged at the bottoms of the two supporting vertical plates in a one-to-one correspondence mode. The steering wheel assembly is arranged on the swing arm transverse plate, and the two trundles and the two driving wheels are located on the two sides of the first axis. The trundle and the frame hinge shaft are arranged on the supporting vertical plate, so that the cost can be saved, the supporting strength of the trundle is improved, and the integration degree is improved. When the carrying robot driving wheel set encounters a fluctuating road surface during advancing, the two trundles and the two driving wheels can swing on the two sides relative to the first axis, so that simultaneous landing of the driving wheels and the trundles is conveniently achieved, and the running stability of the carrying robot can be improved.

The invention discloses a rotary jacking device, a rotary jacking method and assembly plate machining equipment. The rotary jacking device comprises a supporting assembly and a jacking assembly. The supporting assembly comprises a fixing sleeve, a rotating sleeve arranged in the fixing sleeve and coaxially and rotationally connected with the fixing sleeve, a lifting shaft arranged in the rotating sleeve in a penetrating mode and a supporting piece arranged at the end of the lifting shaft. The lifting shaft and the rotating sleeve are arranged in a synchronous rotating mode, the lifting shaft is arranged in the axial direction of the rotating sleeve in a moving mode, the jacking assembly comprises a jacking plate, an avoiding opening is formed in the jacking plate, the supporting piece penetrates through the avoiding opening, and the lifting direction of the jacking plate is the same as that of the supporting piece. A plurality of first positioning pins are arranged on the jacking plate, and a plurality of second positioning pins are arranged on the supporting piece. The rotary jacking device effectively jacks and separates the carrier, and the stability and accuracy of carrier separation and resetting are improved.

The invention relates to the field of microwave oven switches, and particularly discloses a radio frequency reed high-precision driving structure and a driving method thereof.The radio frequency reed high-precision driving structure comprises a frame, a radio frequency switch and a driving mechanism; the radio frequency switch comprises a radio frequency reed element and two conductor rods, and the two conductor rods are installed on the frame in a spaced mode. The radio frequency reed element is arranged opposite to the two conductor rods and can move towards the two conductor rods; the driving mechanism comprises a push rod and a plurality of leaf springs; the plurality of leaf springs are mounted on the frame; one end of the push rod is connected with the plurality of leaf springs, and the other end is connected with the radio frequency reed element and is spaced from the frame. According to the invention, the driving precision of the radio frequency reed is improved.

The invention discloses a Mecanum wheeled robot driving stability control method and system. The Mecanum wheeled robot driving stability control method comprises the steps that geometric structure data and motion state data of a Mecanum wheeled robot are obtained; according to the geometric structure data and the motion state data of the Mecanum wheeled robot, the incomplete constraint of the Mecanum wheeled robot is obtained, and a kinetic equation of the Mecanum wheeled robot is obtained in combination with the Lagrange principle; mechanism information of Mecanum wheel robot slippage is determined according to the kinetic equation; and a self-adaptive control strategy for tracking the target trajectory in real time is set and executed according to the sliding mechanism information of the Mecanum wheel robot and a preset target trajectory. A slip generation mechanism of the Mecanum wheeled robot is disclosed by coupling a kinematics and dynamics analysis method, the influence of slip on longitudinal control and transverse control of a system is comprehensively considered, high-precision control of the Mecanum wheeled robot is realized, and the driving stability of the Mecanum wheeled robot is improved.

The invention discloses a CAV ecological driving guiding method based on vehicle-road cooperation in a mixed traffic environment. The method comprises the following steps: 1, collecting vehicle information at a t0 moment and a real-time state of a signal lamp at a current intersection; 2, judging the position of a traffic scene where the CAV is located; 3, determining a terminal state of CAV ecological driving according to different traffic scenes; 4, determining an optimal speed trajectory curve of the CAV; and 5, dynamically updating and optimizing the track through a trigger type track updating rule. Through information interaction between the CAVs and the roadside facilities and between the CAVs in the vehicle-road coordination environment, the phenomena of starting, stopping, idling, acceleration and deceleration of the CAVs at the intersection can be reduced, so that the traffic efficiency is improved, the energy consumption is reduced, and the sustainable development of traffic is realized.

The utility model relates to a power supply vehicle which comprises an engineering chassis which comprises a vehicle frame, a front steering drive axle, a rear drive axle and an electric drive device, the front steering drive axle is connected to the front end of the bottom of the vehicle frame in a rotating mode, and the rotating face of the front steering drive axle is a vertical face; the rear drive axle is arranged at the rear end of the bottom of the frame, the electric drive device is arranged on the frame, and the electric drive device is in transmission connection with the front steering drive axle and the rear drive axle; wheels are arranged on the two sides of the front steering drive axle and the two sides of the rear drive axle. The power battery system is arranged on the frame, the power battery system comprises a storage battery and a charging interface, and the storage battery is electrically connected with the charging interface; and the control system is connected with the power battery system and the electric driving device. According to the utility model, energy compensation can be dynamically provided for the electric engineering mechanical equipment, so that the electric engineering mechanical equipment can operate far away from an electric power coverage area.

The invention provides an intelligent vehicle motion control method and device based on a physical information neural network, and the method comprises the steps: collecting the control and state data of a virtual vehicle in a simulation environment, and constructing a first data set; collecting control and state data of the intelligent vehicle in a real environment, and constructing a second data set; inputting the first data set into a constructed vehicle motion prediction model for pre-training, and finely adjusting the vehicle motion prediction model by using the second data set to obtain a trained vehicle motion prediction model; wherein the vehicle motion prediction model integrates a deep neural network and a physical information layer and is used for predicting a vehicle state quantity and a vehicle control quantity at a future time point; and integrating the trained vehicle motion prediction model into a motion controller of the intelligent vehicle, and controlling the intelligent vehicle to run by using the motion controller. According to the method, the environmental adaptability is higher, the optimization control result is more accurate, and the tracking precision, the driving stability and the safety of the vehicle are greatly improved.

The utility model discloses an anti-puncture rubber tire, which comprises a main tire and an outer-layer rubber tread, the outer-layer rubber tread is positioned on the periphery of the main tire, the main tire is connected with the outer-layer rubber tread through a plurality of groups of spokes, the main tire comprises a tread part, an inner layer is arranged on the inner side surface of the tread part, and an outer layer is arranged on the outer side surface of the tread part. A sealant layer is filled between the inner layer and the inner side surface of the tread part, and the inner layer comprises a dividing strip assembly; the outer-layer rubber tread is in contact with the ground, and a gap formed by the avoiding cavity is formed between the outer-layer rubber tread and the main tire, so that a sharp object is blocked by the outer-layer rubber tread when being punctured into the outer-layer rubber tread and is not easy to puncture into the tread part of the main tire, and the puncture prevention of the main tire is realized; the self-repairing of the tire is realized by the sealant layer depending on the viscosity of the sealant layer; and the sealant layers are filled in the multiple groups of separation cavities in a split manner, so that the influence of the mobility of the sealant layers on the dynamic balance of the tire is reduced.

The invention relates to the technical field of agricultural mechanical equipment, and discloses a light power chassis suspension rack device based on a field soil bin and a using method of the light power chassis suspension rack device based on the field soil bin. The light power chassis suspension rack device comprises a walking trolley, a walking beam, a testing trolley, a walking track, a hooking device, a suspension rack and a testing system unit. The walking tracks are arranged in parallel, the front side part and the rear side part are movably installed on the walking tracks respectively, the two ends of the walking beam are connected with the front side part and the rear side part respectively, the test trolley is movably installed on the walking beam, the suspension rack is connected with the hanging device through the connecting device, and the hanging device is connected with the test trolley. The test system unit is installed on the suspension rack. According to the invention, modular design is realized, the overall structure is compact, modification and debugging can be carried out according to actual field requirements, mounting and dismounting are convenient, the working state is stable, vibration characteristics and rules can be clearly explored, and various data under real field working conditions can be measured.

The utility model provides a testing device for a train brake pad friction block texture structure, belongs to the technical field of brake pad friction blocks, and aims to solve the stick-slip vibration phenomenon occurring when a high-speed train is braked. In the prior art, a large number of tests and debugging are needed and wide popularization is difficult to realize when the stick-slip vibration is inhibited by integrally changing the property of a friction block or installing a viscoelastic damper and the like. In the utility model, different textures are designed on the surface of the brake pad friction block; the surface texture design based on the friction blocks is adopted to restrain the stick-slip vibration phenomenon of the train braking system, the method is a method for actively restraining the stick-slip vibration from the source, the structure of the braking system does not need to be modified or increased or decreased, and therefore the operation and maintenance cost of a train is not increased, and popularization is easier to achieve.

The present invention discloses a bomb disposal robot, which specifically relates to the field of bomb disposal technology, including a signal receiver, a protection component fixedly connected to the bottom end of the signal receiver, a real-time monitoring component fixedly connected to the upper front end of the protection component, mechanical arm components rotatably connected to the front left and right sides of the protection component, mobile components fixedly connected to the left and right sides of the protection component, and a clamping component slidably connected to the inner cavity of the protection component. The bomb disposal robot described in the present invention can be equipped with a lighting lamp at the front end of the camera, so that the operator can quickly identify the location of the explosive when conducting an investigation in the case of poor lighting, thereby reducing the risk of further explosions caused by failure to detect. The three bottom ends of the connecting rod have a smoothing block, so that when the device is moving, the smoothing block can smooth the track, thereby reducing the local pressure on the ground, and further enhancing the driving stability on uneven, soft or slippery ground.

The utility model discloses semiconductor process equipment which comprises a cavity, a gas uniformizing part, a rotating motor, a transmission assembly and a plurality of lifting assemblies, the lifting assemblies are distributed in the circumferential direction of the cavity at intervals, the lifting assemblies are connected with the gas uniformizing part, and the gas uniformizing part is connected with the rotating motor. And each lifting assembly is in transmission connection with the rotating motor through the transmission assembly, so that the rotating motor drives each lifting assembly through the transmission assembly to drive the gas uniformizing piece to do lifting motion relative to the cavity. According to the semiconductor process equipment, the problem that the gas uniformizing piece in the current semiconductor process equipment is easy to incline in the lifting process, so that the normal process is unfavorably influenced can be solved.

The invention discloses an engine dragging torque control method and device, electronic equipment and a vehicle. The method comprises the steps that operation parameters of a target vehicle are obtained; the operation parameters comprise the vehicle speed, the wheel slip rate of driving wheels, a driving intention variable, the working state of the integrated brake control system and the operation state of the dragging torque control function; when the operation parameters meet the first preset condition, the dragging torque control function is set to be in an activated state, and torque rising operation is conducted on the target vehicle; when the operation parameters meet a second preset condition, the dragging torque control function is set to be in a balanced state, and torque reduction operation is conducted on the target vehicle; and when the operation parameters meet a third preset condition, the dragging torque control function is set to be in an inactive state. According to the method, the dragging torque is accurately controlled, a balance point is found between energy recovery and wheel locking, the energy utilization efficiency and braking safety of the vehicle are improved, the driving experience is optimized, and the method can be widely applied to the technical field of data processing.

The invention provides a driverless automobile coupling control system based on a kinetic model, and belongs to the technical field of new energy automobiles, and the driverless automobile coupling control system comprises a sensor module which is used for obtaining the driving state of a driverless automobile; the bicycle kinetic model modeling module is used for establishing a kinetic model of the pilotless automobile; the steering control module is used for calculating a tire slip angle during steering based on a tire rigidity model and adjusting a steering torque; the coupling control module is used for generating control instructions for steering, acceleration and speed of the pilotless automobile based on the bicycle model created by the bicycle dynamics model modeling module and the tire rigidity model used by the steering control module; the control strategy is completed by combining a linear quadratic regulator and a model prediction controller in the advanced control field, accurate control over the pilotless automobile is achieved, static and dynamic obstacles can be predicted and avoided in real time, and therefore the driving stability and safety of the automobile are remarkably improved.

The invention provides a tractor inflation and deflation system and method and a tractor. A tractor inflation and deflation system comprises a control valve set, an air source, a plurality of wheel side valves, a plurality of tires, a front axle and a rear axle, the control valve set is connected with the air source and the wheel side valves through pipelines, the wheel side valves are connected with the tires, and the tires are installed on the front axle and the rear axle respectively.

The invention discloses a vehicle cruise control method, device and equipment and a medium. The method comprises the following steps: acquiring a constant-speed cruise speed in a constant-speed cruise driving scene; acquiring a first gradient of the current vehicle on the historical road section; predicting a second gradient of the current vehicle in a future road section according to the first gradient of the current vehicle; according to the second gradient and the constant-speed cruise speed, the required power of the current vehicle in the future road section is determined; and determining a power distribution mode of the current vehicle on the future road section according to the required power of the future road section, and controlling the current vehicle to run on the future road section based on the power distribution mode. The embodiment of the invention can improve the accuracy of predicting the gradient of a future road section and the rationality of vehicle power distribution.

The invention relates to the technical field of vehicle control, and discloses a vehicle scheduling method and device, a vehicle and a storage medium, and the method comprises the steps: obtaining the driving state information of a vehicle before the vehicle is driven to an intersection without traffic lights, and obtaining the relative positions and predicted driving path information of other vehicles in a current intersection region; in each sampling period, determining a corresponding multi-objective optimization function based on the traffic interaction scene where the vehicle is located; wherein the traffic interaction scene is determined based on the driving state information of the vehicle and the relative positions and predicted driving path information of other vehicles; constructing a vehicle longitudinal dynamic model based on the driving state information of the vehicle, and constructing a model prediction control problem in combination with a multi-objective optimization function and a safety constraint condition; and solving the model prediction control problem to obtain a target control input sequence in a control time domain, and outputting the first control input quantity in the target control input sequence to an execution mechanism of the own vehicle to realize real-time regulation and control of the own vehicle.

The invention relates to an automatic driving vehicle steering fault-tolerant control method with dynamic safety constraints. The method comprises the steps that S1, information of obstacles and the real-time vehicle state are obtained; s2, the distance between the vehicle and each obstacle is calculated, the obstacle closest to the vehicle serves as a first obstacle, a trigger function value is generated based on the distance between the first obstacle and the vehicle and a trigger function, and the trigger function is a fast switching continuous function with the value ranging from 0 to 1; s3, based on the trigger function value, the obtained original vehicle error is corrected in combination with a barrier function to obtain a corrected vehicle error, and the vehicle error comprises a vehicle transverse error and a vehicle course angle error; and S4, vehicle steering control is carried out based on the corrected vehicle error. Compared with the prior art, the method has the advantages that the trigger function based on the distance is constructed to be combined with the barrier function, and continuous and stable switching with or without security constraints is achieved. The method has the advantage of reducing the load of the control system while ensuring the safety of the vehicle.

The invention provides an agricultural inflation and deflation system with a load sensor, an agricultural inflation and deflation method and a harvester. An agricultural inflation and deflation system with load sensors comprises a pair of load sensors, a control valve set, an air source, a plurality of wheel side valves, a plurality of tires, a front axle and a rear axle, the pair of load sensors are installed on the front axle and the rear axle respectively, and the control valve set is connected with the air source and the wheel side valves through pipelines respectively. The plurality of wheel side valves are respectively connected with the plurality of tires, and the plurality of tires are respectively arranged on the front axle and the rear axle.