366results about How to "Improve driving safety" patented technology

The invention discloses a Fluent-based numerical simulation and experimental design method for shaking of liquid in a tank of a tank truck, and belongs to the technical field of numerical simulation of fluid dynamics (CFD). The method includes the steps that the hole opening position of the wave-proof plate serves as an independent variable, multiple hole opening position schemes are designed, liquid shaking related indexes are determined to serve as dependent variables, a geometric model is established according to the actual structure of a tank truck tank body, a fluid mechanics model and boundary conditions are set, a solver is configured, output parameters and numerical simulation initial values are set, and an experiment is executed. The liquid shaking process of a certain swash plate trepanning scheme is simulated, acting force data, namely shaking index data, between liquid shaking and the inner wall of the tank body is recorded, the advantages and disadvantages of each trepanning position scheme are evaluated based on the shaking index data, and the optimal scheme is determined. According to the method, a real object experiment is replaced by CFD numerical simulation, parameter setting is carried out, the experiment cost and the experiment risk are remarkably reduced, the experiment efficiency is improved, and data support can be provided for industry design.

The invention discloses a low-speed new energy vehicle driving assistance system based on vision and radar fusion, and belongs to the technical field of automotive electronics, which can adapt to price sensitive attributes, reduce the popularization threshold, adopt hardware combination of a low-cost monocular camera and an angle radar, and are matched with an integrated ADAS domain controller to replace a plurality of independent ECUs (electronic control units). The method does not need to depend on expensive devices such as a high-end millimeter wave radar and a laser radar, hardware and system cost is greatly reduced while multifunctional assistance is achieved, market positioning of low-speed new energy vehicles is perfectly matched, and through the fusion design of vision and a radar sensor and the combination of a front fusion and rear fusion cooperative verification algorithm, the positioning precision of the low-speed new energy vehicles is greatly improved. Visual data accurately identifies visual information such as lane lines, vehicles and pedestrians, radar data accurately detects parameters such as distance and speed and adapts to severe environments such as rain, fog and dark light, the advantages of the visual data and the radar data complement each other, the functional defects of a single sensor scheme are overcome, and the accuracy and stability of environment perception in different scenes are remarkably improved.

The invention discloses a vehicle-mounted audio augmented reality system and method based on virtual-real fusion space anchoring, and relates to the technical field of intelligent cabin man-machine interaction, and the system comprises a controller, an augmented reality display device, a distributed loudspeaker array, and a sensor group. The controller receives the virtual image pixel coordinates, the eyeball position coordinates and the vehicle state semantic identifier, and stores a cabin three-dimensional digital model. The system converts a dynamic pixel coordinate into a three-dimensional virtual sound source coordinate by utilizing perspective inverse projection through vision-space mapping logic; the retrieval model anchors the semantic identifier to the physical component coordinates through the semantic-space mapping logic. The audio rendering module calculates a speaker drive gain based on the virtual sound source coordinates to synthesize a virtual sound source. By constructing a unified cabin three-dimensional digital model and a double-channel mapping mechanism, spatial alignment of an audio sound image, an AR visual track and a physical part of a vehicle body is realized, and audio-visual perception splitting is eliminated.

The utility model discloses a radial tire for engineering machinery, which relates to the field of tire design and comprises a tire tread, a linear pattern wall and a U-shaped pattern wall are fixedly mounted on the periphery of the tire tread, a first reinforcing rib is fixedly mounted between the linear pattern wall and the U-shaped pattern wall, and a second reinforcing rib is fixedly mounted between the linear pattern wall and the U-shaped pattern wall. Side pattern walls are fixedly mounted on the periphery of the tire tread and located on the front side and the rear side of the linear pattern wall, shoulder pattern walls are fixedly mounted on the periphery of the tire tread and located on the front side and the rear side of the side pattern walls, and shoulder grooves are formed in the surfaces of the shoulder pattern walls. The height of the first reinforcing ribs is reasonably arranged, the connecting strength between the pattern walls is enhanced, the overall tear resistance is improved, the second reinforcing ribs are matched, the overall rigidity of the tire is remarkably enhanced, the performance of the tire is improved, and the service life of the tire is prolonged.

This invention belongs to the field of assisted driving technology, specifically relating to a lane centering control method and system. The invention acquires the driving environment surrounding the vehicle's lane and determines whether there are obstacles in adjacent lanes based on the driving environment. When only one adjacent lane has an obstacle, if the distance D between the obstacle and the shared lane line satisfies 0 < D < H, the invention controls the vehicle to adjust laterally by a distance Δd from its current position to the side without obstacles. The value of Δd is calculated based on the distance D, the distance L between the vehicle and the other lane line, and a distance threshold H. This solves the problem of existing vehicle centering control methods failing to reasonably adjust the distance to obstacles when only one side of the vehicle has an obstacle, leading to low driving safety or comfort.

The invention provides a vehicle control method and related equipment. The vehicle control method comprises the steps that the curvature variable quantity of a to-be-driven path of a vehicle is obtained; under the condition that the curvature variable quantity is greater than or equal to a preset variable quantity, determining a plurality of first preview distances of the vehicle on the path, and determining cost values corresponding to the first preview distances; determining a second preview distance in each first preview distance according to the cost value, and determining a to-be-driven position of the vehicle on the path according to the second preview distance and the current position of the vehicle; according to the to-be-driven position, the current pose parameter of the vehicle and the wheelbase of the vehicle, a first target steering angle is determined, and the current steering angle of a steering wheel in the vehicle is controlled to be adjusted to the first target steering angle, so that the vehicle is driven to the to-be-driven position. According to the invention, the driving safety of the vehicle is improved.

The application provides a light switching method and system based on Internet of Vehicles. The scheme of the application realizes effective intervention on the wrong use of high beam through Internet of Vehicles communication technology, alleviates the harm of abuse of high beam to a certain extent, and is beneficial to driving safety.

The utility model relates to the technical field of tires, and provides a super high performance car tire, comprising: a carcass; a plurality of longitudinal main drainage grooves are arranged on the tread of the carcass; the inner side of the tread of the carcass has an inner tread pattern area, and the outer side has an outer tread pattern area; a plurality of first auxiliary drainage grooves and a plurality of second auxiliary drainage grooves are alternately arranged on the inner tread pattern area; a knife groove is also arranged between adjacent first auxiliary drainage grooves and second auxiliary drainage grooves; a plurality of third auxiliary drainage grooves and a plurality of fourth auxiliary drainage grooves are alternately arranged on the outer tread pattern area. The utility model can improve the dry and wet grip and drainage performance, reduce the risk of hydroplaning, and improve the wet driving safety and driving comfort.

This invention discloses an interaction method, device, vehicle, and storage medium for a vehicle driver's cockpit, belonging to the field of vehicle interaction technology. The method includes: collecting a multi-dimensional sensor dataset corresponding to a target user based on multi-dimensional sensors installed in the target vehicle; determining driving emotion features corresponding to the target user based on the multi-dimensional sensor dataset; determining an interaction control strategy corresponding to the target user based on the driving emotion features; and controlling the interaction devices in the driver's cockpit according to the interaction control strategy. By extracting driving emotion features, determining corresponding interaction control strategies based on these features, and controlling the interaction devices to provide different interaction modes according to the user's emotion features, this invention achieves effective fusion of multi-modal emotion recognition, deeply integrating emotion recognition with cockpit interaction, forming a complete closed loop from emotion perception to interaction enhancement, improving the user's experience in the driver's cockpit, and enhancing driving safety.

The utility model relates to the technical field of retroreflective sheeting provides an environmental protection type hard PVC retroreflective sheet, solves the problem that the reflectivity of existing retroreflective sheet is low, and the optical performance is relatively weak, and the surface layer anti -peeling impact force is not good, including the retroreflective sheet body, the retroreflective sheet body includes the protective surface layer, prism air microcapsule layer, degradable back film layer from top to bottom sequentially laminated, the prism air microcapsule layer includes wall material and core material, the core material includes prism reflection matrix layer and air layer, the protective surface layer is by PVC material layer and acrylic material layer composite, the prism reflection matrix layer is by several microangle pyramid prism structure unit close arrangement, the microangle pyramid prism structure unit is cutting obtains to cubic angle pyramid prism.

The embodiment of the application provides a kind of data transmission method, system of vehicle, vehicle and readable storage medium, the method comprises: the functional data stream of vehicle is collected, wherein, functional data stream is used to execute the driving control function of vehicle;Based on the data type of functional data stream, the data transmission strategy of functional data stream is determined, wherein, data type is used to characterize driving control function and vehicle's driving safety performance is associated, or, driving control function and vehicle's operation performance is associated, data transmission strategy is used to characterize the rule of transmission functional data stream by different data transmission channel;According to data transmission strategy, functional data stream is transmitted to cloud, wherein, functional data stream is aggregated by cloud according to the data type of functional data stream, and the running state of vehicle is used to make remote cockpit determine aggregated functional data stream.The application solves the technical problem of low communication reliability of vehicle in the related art.

This invention relates to the field of vehicle intelligent control technology, and discloses a windshield wiper intelligent control method, system, and vehicle. The windshield wiper intelligent control method includes: acquiring the windshield wiper operating state; acquiring the environmental occlusion state of the area above the vehicle; and controlling the windshield wiper operating state based on the windshield wiper operating state and the environmental occlusion state. Applying the technical solution of this invention can accurately control the timing of windshield wiper opening and closing, reduce the complexity of driving operations, and improve driving safety.

This invention belongs to the field of vehicle control technology, specifically relating to a pedal feel simulation and coordinated braking control method and system. The method includes: firstly, collecting multiple vehicle operating condition parameters and brake pedal state parameters; determining the current braking intensity based on the pedal state parameters; retrieving the corresponding reference pedal travel-force characteristic curve from a preset database of traditional fuel vehicle pedal characteristics; determining weighting coefficients based on the multiple operating condition parameters; dynamically adjusting the reference curve to generate a target pedal travel-force characteristic curve; and controlling the pedal feedback force output according to the target curve, while simultaneously coordinating the allocation of hydraulic braking torque and regenerative braking torque according to the operating condition parameters. Simultaneously, the actual pedal feedback force is collected, and the weighting coefficients are corrected by comparing the deviation between the actual value and the target curve, thereby recalibrating and updating the target curve to continuously optimize the vehicle braking control effect.

The utility model relates to a kind of suspension hub cover, including base;Several first clamping blocks are set on base;Cover body, coaxially arranged with base and rotate with base;The edge inboard of cover body is circumferentially set with several second clamping blocks;Transparent cover is embedded and set in the inboard of cover body, and second sealing ring is set between transparent cover and cover body;Suspension assembly is set in the cavity enclosed by base and transparent cover;Suspension assembly includes inertial suspension seat, bearing and counterweight, inertial suspension seat is rotatably connected with base by bearing, so that inertial suspension seat can be freely rotated relative to hub, and first sealing ring is set between inertial suspension seat and base;Counterweight is eccentrically arranged on inertial suspension seat;The double sealing ring design of the utility model more effectively protects suspension cover from water dust;Clamp spring is fixed in the inboard of cover body by independent support buckle, the risk of support buckle deformation is reduced, so that hub side clamping force remains stable, push-pull force cannot be attenuated, and driving safety is improved.

The invention discloses a navigation voice broadcasting method and device, electronic equipment and a storage medium, and relates to the technical field of navigation.The method comprises the steps that a navigation destination request is obtained, and common city information is determined through an address information query module; vehicle running state data including administrative city codes, road grade identification values and subsequent action states are monitored in real time; based on the common city information and the vehicle running state data, intelligent guide judgment is executed, and a detailed broadcast mode recommendation instruction or a simple broadcast mode recommendation instruction is generated; and in response to the recommendation instruction, controlling the touch display panel to render the interaction window, and updating the voice broadcast mode state according to the user touch input state value or the overtime default confirmation logic. Detailed broadcasting is recommended when the vehicle is in a non-common city and the road condition is complex, simple broadcasting is recommended when the vehicle is in a common city and the road condition is simple, a countdown automatic confirmation mechanism reduces the driving interaction load, and warning tone conflicts are avoided by detecting the audio channel occupation state.

The application belongs to the technical field of vehicle control, and provides a full-working-condition adaptive cruise control method and system for intelligent networked vehicles, which comprises the following steps: acquiring real-time running data of the intelligent networked vehicle and target object information around the vehicle; identifying the current driving working condition of the vehicle based on the acquired real-time running data; and driving the vehicle to automatically accelerate and decelerate according to the identified current driving working condition of the vehicle and the acquired target object information around the vehicle, so as to complete the full-working-condition adaptive cruise control of the intelligent networked vehicle.

The present application relates to the technical field of highway inspection robots, in particular to a kind of inspection robot cooperative inspection system and method, including the roadside fence robot deployed in roadside guardrail and the road fence robot deployed in central separation belt guardrail, both are equipped with laser projection module, and are connected with cloud dispatch platform communication.When visibility is lower than preset threshold, cloud platform controls robot to move along guardrail, and controls roadside robot to project yellow shoulder light band, road fence robot to project white lane light band and green arrow, two light bands jointly constitute dynamic moving light corridor, provide continuous, active light-emitting driving guidance for vehicle in low-visibility environment.The present application utilizes the space cooperation of roadside and road fence robot and active laser projection, significantly improves the path recognition ability of driver in fog, rain and other bad weather, effectively reduces the risk of vehicle lane deviation and rear-end collision.

The application relates to the technical field of vehicles and discloses a driving behavior processing method, device and equipment and a storage medium, the method comprising the following steps: acquiring current driving data of a vehicle and current road data of a driving road of the vehicle; determining index data corresponding to each driving index according to the current driving data and the current road data; calculating index scores of the driving indexes according to the index data; when it is determined that a user has an abnormal driving behavior according to the index scores of the driving indexes, processing the abnormal driving behavior; in the above manner, the index scores of the driving indexes are calculated by using the index data, and it is determined whether the user has an abnormal driving behavior according to the index scores of the driving indexes; if yes, the abnormal driving behavior is processed, so that the accuracy of determining the abnormal driving behavior can be effectively improved, and the abnormal driving behavior can be processed in time, so that the driving safety is improved.

This application provides a takeover handling method, device, and equipment for autonomous vehicles, relating to the field of autonomous driving technology. The method includes: acquiring data to be filtered based on the driver's physiological and eye-tracking data within the current time window; filtering and calculating the data to be filtered according to multiple preset data indicators and data types to obtain data to be predicted; obtaining the driver's takeover recovery time based on the data to be predicted using a trained time prediction model; and upon confirmation that a warning time has arrived, acquiring a warning level matching a preset warning execution rule and executing a corresponding takeover request warning strategy to achieve a takeover warning reminder for the vehicle. This application's method obtains more accurate and representative data to be predicted by filtering and calculating physiological and eye-tracking data, obtains a more accurate takeover recovery time using a trained time prediction model, and issues a warning reminder, thereby improving driving safety.

An array lens vehicle-mounted illuminating lamp, comprising a shell, a circuit system connected in the shell, a control module and a light source assembly electrically connected with the control module, a reflecting cup connected with the shell, a plurality of lens units connected with the shell along a specific array shape and located at the front end of the light emitting direction of the light source assembly, and the lens unit comprises an upper lens and a lower lens connected in one piece. The array lens vehicle-mounted illuminating lamp can form different lighting combinations by arranging the plurality of lens units along the specific matrix shape and each lens unit comprising the upper lens and the lower lens, thereby enriching the working module and the adapted working scene of the vehicle-mounted illuminating lamp and greatly improving the product use experience and the driving safety performance.

This invention discloses a lane avoidance control system, method, and electronic device based on vehicle-road cooperation. The system includes: a first image acquisition module, a lidar module, an edge computing unit, a second image acquisition module, a communication module, a cloud platform, and an on-board controller. The cloud platform is used to assess the impact of obstacles on the driving trajectory direction based on third motion information and / or height information, and transmits the assessment results to the on-board controller via the communication module. The on-board controller is located at the bottom of the vehicle's cabin and is used to receive the assessment results and send obstacle avoidance control commands to the obstacle avoidance execution component based on the assessment results. The vehicle is controlled by controlling the state of the obstacle avoidance execution component to achieve obstacle avoidance. The obstacle avoidance execution component is located in the vehicle and is configured to have an adjustable state. This invention achieves precise obstacle avoidance, avoids the risk of vehicle rollover, reduces traffic accidents, and thus improves driving safety.

The application discloses a head-up display method, device, equipment, medium and product, the method comprises the following steps: according to the layout position of the orthoview posture stereoscopic model of each instrument information, real-time rendering and projection into the imaging element of the carrier, when the posture of the carrier is deflected, the model rotation is carried out on each orthoview posture stereoscopic model according to the posture deflection parameter, each rotated stereoscopic model is obtained, the target expansion area of the visual angle field is determined in each rendering level, and the layout position of the rotated stereoscopic model corresponding to each new instrument information in the target expansion area is determined. According to the real-time position information of the eyeballs of the eyes of the detected carrier driver and the layout position of all rotated stereoscopic models, real-time rendering and projection into the imaging element of the carrier are carried out. The technical scheme can maximize the effective driving information, and improve the smoothness of human-computer interaction and driving safety.

The utility model discloses a new flash relay of new energy commercial vehicle, include: power supply, power supply is used to provide positive pole power supply, ground wire, ground wire provides ground level, dangerous alarm switch, combination switch, combination instrument, flash relay body, flash relay body is used to provide control dangerous alarm switch, combination switch and the level signal of combination instrument of the utility model discloses a new flash relay of new energy commercial vehicle, through multiple fault detection mechanism and modularization design, the reliability and driving safety of steering lamp system have been improved significantly.

The invention relates to a vehicle control method, a storage medium, a program product, a controller and a vehicle, a preset system of the vehicle is adjusted based on the fatigue degree of the driver in the vehicle to remind the driver, and the preset system comprises a suspension control system. Therefore, at least the suspension control system of the vehicle is adjusted according to the fatigue degree of the driver in the vehicle, so that the purpose of reminding the driver of getting out of the fatigue state is achieved, and the driving safety is improved.

The application discloses a driver attention grading early warning method, device, equipment and program product, comprising: acquiring brain wave data, facial image data, operation behavior data of a target driver and a current driving scene of a target vehicle; extracting brain wave distribution features according to the brain wave data, extracting facial key point features according to the facial image data, and extracting operation sequence features according to the operation behavior data; determining corresponding fusion weight parameters according to the current driving scene, and performing feature fusion on the brain wave distribution features, the facial key point features and the operation sequence features according to the fusion weight parameters to obtain multi-modal fusion features; inputting the multi-modal fusion features into a pre-trained driver attention recognition model to obtain a current attention score of the target driver, and performing grading early warning according to the current attention score. The application improves the driving safety of the vehicle and can be applied to the technical field of vehicle monitoring.

This application relates to an installation device and vehicle for a cab suspension bracket, including a first mounting member connecting to the first suspension bracket, the first mounting member including a first assembly portion and a second assembly portion; and a second mounting member connecting to the second suspension bracket and capable of connecting to the first mounting member; the second mounting member includes a first positioning portion and a second positioning portion respectively matching the positions of the first assembly portion and the second assembly portion; the first positioning portion and the second positioning portion are respectively connected to the first assembly portion and the second assembly portion, so that the first mounting member and the second mounting member are connected. This application can limit and position the first suspension bracket and the second suspension bracket in at least two directions, significantly improving the accuracy of the connection between the first suspension bracket and the second suspension bracket; through the precise positioning of these two brackets during the installation process, the connection quality and stability between the cab and the frame are effectively improved, making the installation process simpler and more reliable.

The global path planning method based on potential energy guidance fast search random tree algorithm belongs to the technical field of intelligent vehicle path planning, and solves the technical problem that the traditional fast search random tree algorithm can cause the planned trajectory to travel close to the obstacles. First, the position of the obstacles and the start and end positions are determined through the two-dimensional space map planned by the vehicle. For any point in the map, the potential energy value thereof is calculated, and the potential energy values of all the obstacles are superimposed to obtain the potential energy value of the arbitrary point. The potential energy values of all the arbitrary points in the two-dimensional space map are obtained in the same way. Then, the potential energy values of each point of the whole map are normalized to obtain a potential energy map matrix. The potential energy map matrix is introduced into the fast search random tree algorithm, a potential energy threshold is set, and the randomly generated points are screened. After screening, the potential energy values are introduced into the cost function of the fast search random tree algorithm, and rewiring optimization is performed, so as to perform vehicle path planning.

The utility model relates to a sightseeing vehicle technical field, concretely relates to a kind of tourist sightseeing vehicle safety early warning protection device, including vehicle body, the top of vehicle body is provided with the protection component for the protection when vehicle body is about to impact barrier, protection component includes two connecting barrels fixedly connected in the top of vehicle body, and the one end of connecting barrel is slidably connected with anti-collision plate, the top of vehicle body is provided with alarm component, the utility model is provided with protection component and alarm component, and it has passive protection and early warning function in the process of driving sightseeing vehicle, when the front end of vehicle is about to contact barrier, anti-collision plate in the front of vehicle is compressed under stress simultaneously, can rotate through connecting structure drive gear set and drive alarm structure action, realize the buffer energy absorption and synchronous sound early warning to barrier, avoid the collision risk caused by the driver due to blind area or inattention.

The utility model relates to expressway emergency technology field, put forward a kind of vehicle-mounted automatic expressway rapid road sealing device, including mounting bracket, support plate, multistage telescopic frame, winding shaft, gear, servo motor and pull rope.Mounting bracket is located on vehicle, support plate is fixed in the middle part of mounting bracket, both sides are respectively equipped with multistage telescopic frame, winding shaft is rotatably connected with support plate, winding shaft top is equipped with gear, the output shaft of servo motor is fixedly connected with one gear, two gears are engaged with each other;Winding shaft winding pull rope is connected with multistage telescopic frame end respectively.Multistage telescopic frame is composed of multistage U-shaped frame body sleeve, and elastic sheet is equipped in each telescopic frame.One winding shaft upper end and lower end are equipped with threaded rod, threaded rod drives limit frame lifting by moving plate, limit frame is equipped with spring and limit block in it.Can be through the control multistage telescopic frame unfolding and contraction, form temporary roadblock behind expressway emergency operation vehicle, to realize rapid road sealing and vehicle deceleration.

The application relates to a multi-gear power split hybrid transmission system and a vehicle, which comprises an electronic continuously variable transmission, a planetary gear mechanism composed of a sun gear, a planet carrier and a ring gear, an engine in transmission connection with the planet carrier, a first motor in transmission connection with the sun gear, a ring gear connecting shaft in connection with the ring gear, a double power coupling mechanism comprising an output shaft and an intermediate shaft, a second motor in transmission connection with the intermediate shaft, a first gear shifting mechanism and a second gear shifting mechanism connected between the ring gear connecting shaft and the output shaft and independent of each other, and a third gear shifting mechanism connected between the output shaft and the intermediate shaft. The transmission system of the application is dynamically switched through different transmission paths, power is mutually compensated in the gear shifting stage, the driving jerk is significantly reduced, and the transmission fluency is improved. The engine and the motor can be fully utilized in the high-efficiency working area, different load requirements can be met through the multi-gear design, the vehicle fuel consumption is effectively reduced, and the structure is compact and the layout is reasonable.