16 results about "Unpaved road" patented technology

The invention relates to the technical field of generators, in particular to a power take-off generator for a vehicle-mounted power generation system, which comprises a generator housing, a front end cover and a tail end cover, the front end cover and the tail end cover are respectively mounted at two ends of the generator housing, an annular gland is fixedly arranged on the front end cover, and a counterweight ring is arranged between the front end cover and the annular gland in a limiting manner; supporting springs are arranged on the outer side of the balance weight ring and evenly distributed in a circumferential array mode. The generator is normally used when the generator stably runs on a paved road surface, extra power consumption is not needed when smoke particles are generated on a non-paved road surface and a vehicle jolts, the interior of the shell of the generator can be automatically in a positive pressure state through structural arrangement, and the protection performance is improved.

The invention discloses an aerial operation device, and relates to the technical field of distribution line operation. The device comprises a vehicle body which comprises a first part and a second part; the car hopper is arranged on the car body of the second part; part of the operation assembly is arranged in the vehicle hopper, and part of the operation assembly is arranged on the vehicle body of the first part; and the supporting assembly is connected with the vehicle body. According to the aerial operation device provided by the invention, the small off-road vehicle body is adopted, so that the off-road capability of the vehicle on a non-paved road surface is remarkably enhanced; the stability of the gravity center of the vehicle body during lifting operation is ensured through the unique supporting leg layout and the distribution of the operation assemblies on the vehicle body, and the overturning risk is effectively prevented; due to the compact vehicle body design, the vehicle can be flexibly parked under a tower, the height meeting the operation requirements of most distribution lines can still be achieved on the premise that the overall size of the device is reduced, and therefore the good balance of the vehicle trafficability, the operation stability and the space occupation efficiency is achieved.

The invention discloses an all-terrain four-season wear-resistant tire and a tread pattern structure thereof, and relates to the field of tires, the all-terrain four-season wear-resistant tire has good trafficability on a non-paved road surface, has excellent comfort and low noise on a paved road surface, has excellent wear resistance and safety, and meets all-terrain road surface and four-season requirements. A plurality of pattern units are arranged at intervals in the circumferential direction of the tread, in each pattern unit, two side pattern blocks and two tire shoulder pattern blocks are staggered in the circumferential direction of the tread and are in central symmetry about a central pattern block of a central symmetry structure, and lightning-shaped first grooves are formed between the side pattern blocks and the central pattern block; the central pattern block and the two side pattern blocks are provided with small grooves; the two tire shoulder pattern blocks are provided with semi-closed grooves, shoulder side patterns, nail holes and small grooves; second zigzag grooves are formed between the central pattern blocks and the side pattern blocks in every two adjacent pattern units; and zigzag main grooves extending along the circumferential direction of the tread are formed between the tire shoulder pattern blocks and the side pattern blocks on the same side of the central pattern block.

Method for predicting and activating AWD on a route, where a process - Receives weather data (401) and uses this data to determine whether AWD and / or 4WD should be automatically activated or deactivated, and at the - any areas on the route corresponding to gravel, dirt or otherwise unpaved roads are considered first (403), with a flag being set (405) for each of these areas, and - wherein a predetermined distance or time before reaching these areas the process activates AWD, wherein the process also checks whether any weather warnings indicating possible upcoming weather over regions of the route exist for the time the vehicle is predicted to travel (407), wherein the process sets a flag for AWD or 4WD for these areas (409) if there are any weather warnings for any regions of the route, and wherein if and when the vehicle encounters an area with a flag set (411), the process checks whether a timestamp is associated with the area (413), and if there is no timestamp, activates AWD (417) shortly before the vehicle enters the area with a flag set, or wherein alternatively, a point on the route is set at which AWD is to be activated and another point at which AWD is to be deactivated.

This application proposes a method for identifying drivable road areas based on binocular vision. The method includes: acquiring left and right images of the road using a binocular camera; extracting and matching features from the left and right images based on a spatial attention mechanism to obtain an attention matrix and image features, and generating a disparity map based on the attention matrix and image features; performing a first coordinate transformation on each pixel in the disparity map to obtain a corresponding depth map, and performing a second coordinate transformation on each pixel in the depth map to obtain a corresponding height map; and identifying the drivable area of ​​the road based on the height map. The technical solution of this application is applicable not only to road surface information perception on paved roads but also to road surface information perception on unpaved roads, and the perception result is the drivable area ahead of the road, which facilitates the autonomous driving decision-making module to make decisions directly based on the drivable area.

The invention discloses a risk prompting method and device, a medium and a program product. The method comprises the following steps: acquiring historical vehicle passing information corresponding to a target non-paved road surface; determining a weather improvement degree according to the historical weather information and the current weather information, and determining a current passing rate variable quantity of the current vehicle according to the weather improvement degree and a preset mapping relation between the weather improvement degree and the passing rate variable quantity; the current vehicle passing rate is determined according to the vehicle parameters of the current vehicle, the current passing rate variable quantity and the historical vehicle passing rate; and determining risk prompt information according to the current vehicle passing rate, and displaying the risk prompt information in a navigation prompt module of the vehicle. According to the scheme, the passing rate variable quantity is obtained according to the historical vehicle passing information and the weather improvement degree, so that the current vehicle passing rate is obtained, a corresponding risk prompt is made, the possibility that the vehicle falls into or rolls over is reduced, and then the personal safety of a driver is guaranteed.

Provided is a pneumatic tire which is suitable as a tire for driving on an unpaved road and which has improved driving performance and cut resistance on the unpaved road. A pair of sidewall blocks (21) facing each other across sidewall grooves (22) extending in the width direction of the tire are provided in a sidewall region located on the outside of a shoulder region of a tread portion (1) in the width direction of the tire, and repeating elements (20) comprising the sidewall grooves (22) and the pair of sidewall blocks (21) are arranged at intervals in the circumferential direction of the tire. The tread surface of each sidewall block (21) has a concave-convex shape formed by a reference surface (21a) located on the sidewall groove (22) side and a step portion (21b) located on the opposite side of the sidewall groove (22) and protruding from the reference surface (21a), and the sidewall groove (22) is provided with a bottom raised portion (22a) protruding from the bottom of the sidewall groove (22) and connecting the pair of sidewall blocks (21).

A system for controlling the starting of a vehicle, comprising: a wheel speed sensor (11) which detects the rotational speed of at least one wheel under the wheels of the vehicle, a vehicle speed detector (12) which detects a vehicle speed, an acceleration detector (13) which detects vehicle acceleration, a vertical acceleration sensor (14) which detects a vertical acceleration of the vehicle, a wheel torque detector (15) which calculates a wheel torque, an ambient temperature sensor (16) which detects an ambient temperature, and a control device (20) which calculates a wheel slip amount based on the rotational speed of at least one wheel, the vehicle speed and the vehicle acceleration, determines whether wheel slip occurs by comparing the wheel slip amount with a first predetermined wheel slip amount, determines a road condition based on the ambient temperature and the vertical acceleration of the vehicle when the wheel slip occurs, and performs a start-up control according to the road condition, wherein the control device (20) determines the road condition as a slippery road in a state in which wheel slippage occurs, unless the road condition is an icy road, an uneven road or an unpaved road, and wherein the control device (20) performs the starting control according to the uneven road or the unpaved road when the road condition is the uneven road or the unpaved road.

A system for controlling vehicle operation comprises a controller and a command unit. The command unit is configured to generate a specific surface condition for a given path based on aggregated vehicle trajectories from a multitude of vehicles traveling on that path, including extracting the respective coordinates and trajectories of these multitude of vehicles over a predefined time period. The command unit is also configured to determine the respective lateral distances between these multitude of vehicles and a centerline on the given path. The given path is designated as an unpaved path if one or more predefined conditions based on these lateral distances are met. The unpaved path is defined by the absence of centerline markings.The control system is designed to retrieve the current surface condition and control the operation of the vehicle when the vehicle is traveling on the unpaved road.

The invention belongs to the technical field of heavy-load transportation equipment, and discloses a semi-trailer-loaded frame structure and a semi-trailer. The semi-trailer-loaded frame structure includes: a longitudinal beam, which serves as the core load-bearing structure of the semi-trailer frame; a cross beam, which is connected to the inside of the longitudinal beam and is used to strengthen the local strength of the frame; a rib plate, which is connected to the outside of the longitudinal beam and is used to support objects; a placement box, which is connected to the longitudinal beam and is used to place objects; a light stand, which is connected to the longitudinal beam and is used for warning; an alarm, which is connected to the longitudinal beam and is used for warning; the present invention can enable the hydraulic rod to have the function of deflection adjustment angle. When facing complex terrain such as ramps and potholes, the support plate can actively adapt to the ground shape to avoid local suspension caused by ground undulations, ensure stable support of the support legs, and improve the applicability of the vehicle in scenarios such as unpaved roads and loading and unloading sites.

The invention discloses a rear auxiliary frame assembly and an electric vehicle thereof.The rear auxiliary frame assembly comprises a main body frame structure and a suspension connecting support, and the main body frame structure is an integral frame structure formed by welding a set of longitudinal beams and a set of transverse beams; the suspension connecting support comprises a front suspension mounting support, a rear suspension mounting support and four suspension mounting supports located on the two sides, the front suspension mounting support and the rear suspension mounting support are arranged on the corresponding cross beams, and the suspension mounting supports on the two sides are arranged on the corresponding longitudinal beams. The four suspension connecting supports are accurately distributed on key stress parts of a front cross beam, a rear cross beam, a left rear framework and a right rear framework of the rear auxiliary frame to form a symmetrical supporting system with front-back positioning and left-right stability, compared with existing scattered mounting points, the radial and axial displacement after a motor is fixed is greatly reduced, and the stability of the motor is improved. The motor is prevented from inclining and moving when the vehicle bumps on a non-paved road surface, climbs or suddenly turns; motor installation is stable and reliable, and vehicle operation reliability is improved.

A method for determining a short-term driving tendency index, comprising: Detecting (S100) input variables, Determine (S110) whether an investigative condition of the tendency to travel short-term is met, Calculate (S120, S130, S140) trends and output membership function values ​​according to a plurality of fuzzy rules based on the input variables when the short-term driving trend determination condition is satisfied, and Determine (S150) a short-term trip tendency index based on the tendencies and output membership function values ​​according to the majority of fuzzy rules, where the determination condition of short-term journey tendency is met if a distance to a vehicle ahead is greater than or equal to a predetermined distance, a radius of curvature of a road ahead is greater than or equal to a predetermined curve radius, a gradient of a road is less than or equal to a predetermined gradient, or a road condition is not a slippery road, not an icy road, not an uneven road, or not an unpaved road.

The invention discloses a target pose calculation method and device for an oil-electric hybrid chassis mechanical arm composite robot on a non-paved road surface and a storage medium, and belongs to the technical field of machine vision systems.The method comprises the following steps that hand-eye calibration is conducted on a shot image to obtain a conversion matrix of a camera at the tail end of a mechanical arm; obtaining a target object template point cloud; obtaining a vibration point cloud of a target object; fPFH features are calculated respectively, two sets of feature vectors are obtained, and the two sets of feature vectors are registered to obtain a coarse registration conversion matrix; calculating to obtain a precise registration conversion matrix; performing rigid body transformation on the vibration point cloud of the target object by using the fine registration transformation matrix, calculating the number of matching points, and then calculating to obtain an adaptive threshold value; and iteration is conducted on the rigid body transformation matrix of the target object template point cloud, transformation poses are transformed through the transformation matrix, and the poses of the target under the mechanical arm base are obtained. The method is small in hardware size, low in cost and low in computing power requirement, and the target object pose estimation speed and precision in the shaking state can be improved.

The present invention relates to the technical field of generators, and specifically to a power take-off generator for a vehicle-mounted power generation system, comprising a generator housing, and a front end cover and a rear end cover respectively mounted at both ends of the generator housing, wherein an annular pressure cover is fixedly provided on the front end cover, and a counterweight ring is provided for limiting position between the front end cover and the annular pressure cover; support springs are provided on the outer side of the counterweight ring, and the support springs are evenly distributed in a circular array; the present invention is normally used when driving smoothly on paved roads, but on unpaved roads, when the vehicle is bumpy and smoke particles are generated, no additional power consumption is required, and the internal part of the generator housing can be automatically placed in a positive pressure state through the structural setting, thereby improving protection.

The present invention discloses a turning control method and device for a four-wheel drive vehicle. The target turning control mode selected by the user based on the driving scenario is obtained; the current steering information and the current driving torque output through the accelerator pedal are obtained; if the unpaved road control mode is selected, the current driving torque is distributed to the two front wheels for drive control, and the inner rear wheel is locked and the outer rear wheel is slipped based on the current steering information; if the paved road control mode is selected, the current driving torque is distributed to the two rear wheels for drive control, and the two rear wheels are drifted based on the current steering information; if the in-situ U-turn control mode is selected, the current driving torque is distributed to the four wheels for drive control based on the current steering information. The present invention solves the problem of reducing the turning radius under different working conditions, reduces the complexity of the steering operation and the time taken for steering, and improves the driving experience and the convenience of the vehicle.

This invention discloses a visual perception method and system for autonomous driving in mines based on YOLO real-time inference, relating to the field of environmental perception technology for autonomous driving in mines. The method employs an adaptive deconvolution deblurring algorithm based on inter-frame optical flow estimation to calculate the image plane displacement caused by low-frequency, high-amplitude vibrations from continuous image frames acquired by an onboard camera. Deconvolution operations are then performed on directional motion blur and edge texture degradation. The processed image frames are input into a YOLO real-time inference network with reconfigured anchor frame parameters. These anchor frame parameters are obtained by clustering the labeled dimensions of fallen rocks and eroded rock blocks from the slope in the mine. By performing optical flow deconvolution restoration operations on the blurred frames from the mine's bumpy terrain and reconfiguring the anchor frame parameters based on the clustering results of mine obstacle sizes, this invention enables the YOLO real-time inference network to maintain stable bounding box outputs and continuous trajectory markings for fallen rocks and eroded rock blocks under vibration conditions on unpaved roads.