19results about How to "Ensure driving stability" patented technology

The invention provides a cumin inter-row harvesting device suitable for a cotton cumin interplanting mode. The cumin inter-row harvesting device comprises a divider, a harvesting and conveying device, a walking device and a control system. The walking device has an adjustable transverse working width and is used for crossing multiple rows of cotton and carrying out cross-row harvesting on multiple rows of cumin among the rows; the dividing device is arranged below the walking device and used for gathering cumin in clusters and conveying the cumin backwards. The harvesting and conveying device is distributed at the lower rear part of the dividing device and is used for cutting the divided and gathered cumin seeds and tiling the cumin seeds backwards in a harvested area; the control system is electrically connected with the dividing device, the harvesting and conveying device and the walking device and used for controlling dividing, cutting and conveying and advancing steering. The power of the whole machine is provided by a range-extended generator, and remote control is realized through a wireless remote control unit. On the premise that cotton is not damaged, cross-row efficient harvesting of multiple rows of cumin can be achieved, the structure is compact, operation is convenient and fast, labor intensity is remarkably reduced, and harvesting efficiency is improved.

The application discloses a distributed four-motor driving redundancy control method and system, relates to the technical field of vehicle driving control, and is applied to a distributed driving system. The distributed driving system comprises four motors. The method comprises the following steps: determining a longitudinal demand torque and a yaw differential torque of a vehicle based on an acceleration operation and a steering operation of a driver; if motor fault information of the vehicle represents single-motor abnormality, constructing a multi-target cost function based on multiple ones of original demand torques of the motors, motor rotating speeds, torque capacity limits, wherein the multi-target cost function comprises multiple ones of a torque adjustment cost sub-function, a system efficiency cost sub-function and a motor reserve capacity cost sub-function; determining target torques of normal motors based on the multi-target cost function, the longitudinal demand torque and the yaw differential torque, and controlling corresponding normal motors to perform driving output according to the target torques.

The invention relates to the technical field of automobile power control, in particular to a vehicle power parameter determination method and device, equipment, a storage medium and a product. The method comprises the steps of obtaining multi-dimensional working condition data corresponding to a target vehicle and a vehicle state of the target vehicle; according to the multi-dimensional working condition data, the driving working condition of the target vehicle is identified, and a target working condition corresponding to the target vehicle is obtained; determining a target power parameter corresponding to the target vehicle according to the target working condition and the vehicle state of the target vehicle; according to the method, it is guaranteed that the power parameters can have certain working condition adaptability in the running process of the target vehicle, and the running stability and running safety of the target vehicle are guaranteed.

The invention discloses an automatic driving multi-dimensional coupling cooperative control method and system considering passenger comfort, and relates to the technical field of intelligent vehicle control, and the method comprises the steps that a perception and state estimation module obtains global state information of a vehicle in a current control period; the transverse controller, the longitudinal controller and the vertical controller run in parallel, local optimization solution is carried out based on the global state information, and a preliminary transverse control instruction, a preliminary longitudinal control instruction and a preliminary vertical control instruction are generated; the central coupling relation coordinator calculates a coupling index of a current control period by using a whole vehicle coupling dynamic model based on the global state information, and performs dynamic compensation correction based on the coupling index to generate a final transverse control instruction, a final longitudinal control instruction and a final vertical control instruction; and the execution module receives and executes the final transverse control instruction, the final longitudinal control instruction and the final vertical control instruction. According to the invention, the passenger comfort and the vehicle performance can be effectively cooperated.

This invention belongs to the field of vehicle control technology and relates to a vehicle motion control system based on angular module dynamics. The system constructs a two-degree-of-freedom driver control system including steering wheel input and vehicle posture lever input, used to represent path curvature tracking requirements and vehicle posture adjustment requirements, respectively. Based on the driver control input, ideal yaw rate control targets and ideal center-of-gravity sideslip angle control targets are constructed, and the four-wheel steering angle feedforward control quantities are determined through vehicle kinematics methods of pure yaw motion and pure lateral motion. Through feedback optimization control, the additional yaw moment and four-wheel steering angle control quantities are coordinated under composite operating conditions. Based on adaptive adjustment of control weights and constraints under operating conditions, the distribution control of four-wheel drive / braking torque and four-wheel steering angle is achieved. This invention achieves decoupled control of vehicle yaw motion and lateral motion by constructing a two-degree-of-freedom driver control system and combining feedforward kinematics and feedback dynamics control.

The application belongs to the technical field of paint production equipment, and discloses a mixing mechanism for producing paint, a rack, a storage cylinder, a mixing box and a material control assembly. The rack has an installation space inside, the storage cylinder is arranged in the installation space, and the inside of the storage cylinder has a plurality of storage cavities along the circumference thereof. The mixing box is arranged in the installation space and located at the bottom of the storage cylinder. The material control assembly comprises a material control plate located at the bottom of the storage cylinder and a driving member arranged on the rack. The material control plate has a material dropping opening, the material dropping opening is provided with a material guide pipe in communication with the feed port of the mixing box, and the driving member is connected to the material control plate and used for driving the material control plate to rotate, so that the material dropping opening is in communication with different storage cavities, thereby realizing storage of a plurality of raw materials on one hand, reducing the area occupied by the plurality of storage cavities on the other hand, reducing the required floor area of the mixing mechanism, and improving the space utilization of the factory area.

This invention discloses a method, apparatus, equipment, and storage medium for managing spoil heap maps. By collecting location and movement data of operating vehicles during operation, the spoil heap map, retaining wall positions, and unloading location information are dynamically updated. This solves the technical problems of insufficient reliability of laser sensing due to dust interference and low efficiency of manual retaining wall positioning in existing unmanned mining truck spoil heap operations. By simultaneously collecting terrain and retaining wall data during vehicle operation, production and measurement are integrated, reducing data acquisition costs. Flatness detection effectively filters out positioning errors caused by uneven terrain, ensuring map accuracy. Dynamic map updates and maintenance of unloading locations enable automatic switching of unloading location status, improving the overall turnover efficiency of the spoil heap.

The application discloses a film pasting device and FPC false pasting machine, and relates to the technical field of flexible printed circuit board, and specifically relates to the following technical scheme: a mounting frame is provided with a fixed film pasting assembly at the top; a movable film pasting assembly is installed on the inner wall of the mounting frame and is arranged directly below the fixed film pasting assembly; and an intermittent driving assembly is installed on the mounting frame and is used for intermittent movement of materials; the movable film pasting assembly moves upward to push the materials away from the intermittent driving assembly, and then the materials are in contact with the fixed film pasting assembly for false pasting treatment. Through the above method, after the false pasting forming of the film pasting device, the intermittent driving assembly sends the FPC finished product away, and at the same time, the FPC original product and the reinforcing plate are sent to the top of the movable film pasting assembly for continuous feeding; the feeding and false pasting can be performed synchronously, and continuous production can be realized.

The invention relates to an automatic driving longitudinal control method for a road train, belongs to the technical field of automatic driving road train motion control, and solves the problems that in the prior art, the propagation influence of a front train on a rear train in a road train queue is caused, and the deviation or oscillation between the distance between vehicles in the queue and the speed is amplified and propagated in the train queue; the method comprises the following steps: S1, receiving real-time information provided by an upstream module; s2, for a head train and each slave train in the road trains, respectively constructing MPC models of the own trains; s3, constructing a vehicle dynamics prediction model of the own vehicle; s4, solving the established MPC model by using a solver for real-time vehicle control; and S5, based on the current operation process data in the road train, performing neural network updating through the cloud, and transmitting the updated pre-trained neural network back to the train end for the next round of task.

The invention discloses a pull type vehicle body stability control vehicle-mounted control system based on a mechanical pull rope brake. The pull type vehicle body stability control vehicle-mounted control system comprises a controller box, a fixing device, a transmission mechanism, a sound-light alarm unit and a power supply. Lateral acceleration data of a vehicle body are collected through an LSM6DSOWTR three-axis acceleration sensor in a high frequency mode, a five-level graded braking rule and precise PWM control are combined, precise matching of the swing degree and the braking force of the pull type motor home is achieved, vehicle body swing is effectively restrained, the risk of dead swing is avoided, and the driving safety is remarkably improved; meanwhile, voltage and current dual detection protection and sound-light alarm functions are integrated, the abnormal operation risk of the system can be avoided in time, and the mechanical pull rope transmission mechanism which is simple in structure and small in force transmission loss and the power supply circuit matched with the vehicle-mounted environment are matched, so that installation and maintenance are convenient, adaptability is high, and cost is low. And the driving stability can be guaranteed by dynamically adjusting the braking power, and the service life of core components is prolonged.

This application relates to the field of intelligent scheduling technology in mines, and discloses a collaborative scheduling method for unmanned trucks in open-pit mines based on multi-energy complementarity. The method includes the following steps: collecting road network topology information, calculating the potential energy topology coefficient per unit mass, obtaining the microgrid net power prediction curve and throughput progress deviation rate; calculating the dynamic energy storage acceptance rate; calculating the theoretical basic load mass when the potential energy topology coefficient is less than zero; calculating the dynamic structural fatigue boundary load mass and the dynamic adhesion boundary load mass, and truncating the theoretical basic load mass to output the target load mass; obtaining alternative schemes, and calculating the comprehensive cost value through a multi-objective comprehensive cost function; adjusting the energy replenishment threshold according to the net power prediction curve, selecting the target alternative scheme with the smallest comprehensive cost value, generating scheduling instructions, and issuing them for execution. This invention combines the vehicle's physical boundary with the microgrid's supply and demand fluctuations to achieve comprehensive optimization of mining area electricity costs, transportation progress, and operational safety.

This invention relates to the field of liquid crystal display technology, and more particularly to an intelligent driving method and system for liquid crystal displays. The method includes the following steps: recording the current decay waveform of the source driver charging the pixel capacitor during pixel charging; calculating the charging time constant based on the current decay waveform; calculating the current pixel capacitance value using the charging time constant and the transistor on-resistance; converting the current pixel capacitance value into an orientation angle corresponding to the pixel orientation state; comparing the current orientation angle with the target orientation angle corresponding to the pre-acquired target grayscale, and calculating the orientation angle deviation; and using a driving sequence containing multiple voltage pulses based on the orientation angle deviation. This invention achieves closed-loop precise driving based on pixel state feedback by deriving the pixel capacitance from the current decay and converting it into the pixel orientation state, overcoming the problem of long-term open-loop blind driving in liquid crystal displays.

The utility model relates to a kind of 10 feet container special transport semitrailer and mobile energy storage system.The 10 feet container special transport semitrailer includes frame main body and four locking appliances, and connecting main body and wheel set.Frame main body is used to carry 10 feet container.Four locking appliances are set at the position of the four corner fittings corresponding to the bottom of 10 feet container of frame main body.The rear end of connecting main body is connected with frame main body, and the front end is equipped with towing pin.The top surface of frame main body is lower than the top surface of connecting main body.Wheel set is set to the bottom of frame main body and is close to the rear end of frame main body.The distance from the rotation axis of wheel set to towing pin is greater than or equal to 4200mm, and the distance from the rear end surface of frame main body to the front end surface of connecting main body is less than or equal to 5600mm.The total length of the semitrailer is shorter, and the mobile transportation of single 10 feet container can be realized, the amplitude generated by road bump to 10 feet container is reduced, and the transportation safety of container is improved.

The invention discloses a vehicle control method and device and a readable storage medium, and relates to the technical field of new energy vehicles. The vehicle control method comprises the steps that in the vehicle running process, the vehicle speed value of a vehicle, the first opening degree of an accelerator pedal, the second opening degree of a brake pedal and the electric quantity value of a battery are obtained; according to the vehicle speed value, the first opening degree, the second opening degree and the electric quantity value, the driving mode of the vehicle is determined; determining a torque distribution mode of a front axle motor and a rear axle motor based on the driving mode; and according to the torque distribution mode, the torque of the front axle motor and the torque of the rear axle motor are adjusted, so that the torque zero-crossing process of the front axle motor and the rear axle motor is completed. The torque zero-crossing stability of the vehicle is improved.

This invention relates to the field of intelligent connected vehicle technology, addressing the shortcomings of existing intelligent connected vehicle communication network trust assessment and consistency coordination. Specifically, it relates to a collaborative control method for trusted interaction among intelligent connected vehicle groups under a zero-trust architecture. By fusing direct and indirect trust functions to obtain a dynamic comprehensive trust assessment function, it achieves real-time fusion of the global communication network and the comprehensive trust calculation model, accurately quantifying the degree of interaction between vehicles and significantly improving the safety performance of ICV group interaction. A distributed collaborative control algorithm based on state feedback adapts to differences in vehicle trust levels, achieving the goal of consistent coordination among vehicle queues and ensuring the stability of collaborative control in dynamic communication scenarios for the ICV group. The integrated design of zero-trust security protection and vehicle communication network allows the security of communication relationships in the ICV group system to be updated in real time, adapting to the communication topology changes under dynamic vehicle movement.

The application relates to a vehicle intelligent control method and device based on tire pressure anomaly grading and a storage medium, and belongs to the technical field of tire pressure monitoring. The method comprises the following steps: determining a tire pressure anomaly grade based on vehicle tire pressure sensor data and wheel speed monitoring data; determining a deviation torque based on the tire pressure anomaly grade and an abnormal wheel position; determining a stability margin grade based on the deviation between an expected yaw rate under the deviation torque and a measured yaw rate, a current vehicle speed and a road adhesion coefficient; and cooperatively controlling an electric power steering system, a braking system and a driving system of the vehicle based on the tire pressure anomaly grade and the stability margin grade. The vehicle intelligent control method based on tire pressure anomaly grading provided by the application upgrades passive alarm of tire pressure anomaly to active intervention, different control strategies can be adopted according to different anomaly severities, and the driving stability of the vehicle under various tire pressure anomaly working conditions is ensured.

The invention relates to a suspension rigidity and transmission output torque self-adaptive adjustment method, which comprises the following steps of: acquiring multi-source time sequence data in a vehicle driving process, constructing a feature vector for judging a driving intention of a driver based on the multi-source time sequence data, matching the feature vector with a preset intention template library, and determining the driving intention of the driver according to the matched intention template library. Performing behavior deduction by adopting a Bayesian network model in combination with time sequence characteristics in a continuous time window, outputting a driver intention probability vector, and determining a current driving intention of the driver based on the intention probability vector; and executing a branch adjustment strategy based on the current driving intention: if the intention is the first intention. According to the method, the current driving intention is recognized, and then the target suspension rigidity and / or the target transmission torque are directly calculated based on the recognized form intention, so that cooperative adjustment of the suspension rigidity and the transmission torque is realized, and dynamic response, driving stability and riding comfort can be considered under different driving working conditions.

The utility model relates to the technical field of agricultural mechanical equipment, in particular to a tractor stepless speed change transmission system which comprises an engine, a clutch is arranged at the output end of the engine, a first front speed increasing box is arranged at the output end of the clutch, a first hydrostatic stepless speed changer is arranged at the output end of the first front speed increasing box, and a second hydrostatic stepless speed changer is arranged at the output end of the second front speed increasing box. A gearbox assembly, a middle power output assembly and a rear power output assembly are arranged at the output end of the first hydrostatic stepless transmission. The front speed increasing box I and the hydrostatic stepless speed changer I are arranged, the front speed increasing box I achieves power speed increasing through gear meshing transmission, the structure is compact, the transmission efficiency is high, power input with the higher rotating speed can be provided for follow-up transmission parts, and the power transmission performance of the whole transmission system is optimized; the first hydrostatic stepless speed changer can flexibly adjust the angle of an internal swash plate according to operation requirements, and stepless speed change is achieved.

The application provides a reinforced railway turnout bonding insulation joint clamp plate and a manufacturing method thereof. The clamp plate comprises a clamp plate body, one side of the clamp plate body is a working surface, and the other side is a non-working surface. The working surface is similar to a fish tail space of a steel rail. The non-working surface is provided with a clamp plate reinforcing rib. The clamp plate reinforcing rib comprises upper and lower transverse reinforcing ribs and a vertical reinforcing rib which is connected to the upper and lower transverse reinforcing ribs from a midpoint. The non-working surface is also provided with a clamp plate top surface which has an L-shaped structure at the top and an inner recess interference structure at the bottom. The inner recess interference structure is arranged on the left and right sides of the lower transverse reinforcing rib. A plurality of clamp plate bolt through holes are symmetrically arranged along the longitudinal center line of the clamp plate body. The through hole position is coincided with the joint hole position of the steel rail which is matched with the clamp plate. The application improves the fatigue performance, eliminates the interference hidden danger in the field laying, has good universality, and guarantees the stability and safety of train driving. The manufacturing method adopts a rolling process, and the material utilization rate is not less than 90%. The method has good machinability and processability.