694 results about "Driving safety" patented technology

This invention belongs to the field of tire manufacturing technology and discloses a non-pneumatic tire, including a tire body. The tire body includes a rim, a support body, and a tread ring. The support body includes a first ring, a second ring, a first support leg, and a second support leg. The first ring is fixedly connected to the rim. This invention, by setting up the first ring, second ring, first support leg, and second support leg, provides a stable inner force-bearing foundation for the support body. The second ring evenly bears the force transmitted by the tread ring. The first and second support legs form an elastic frame that adaptively deforms and absorbs vibration under stress. Furthermore, the structure of the support legs and the through-holes allows for a more uniform distribution of stiffness and ground pressure, effectively reducing vehicle vibration and improving ride stability. The synergistic cooperation of multiple structures significantly enhances the elastic buffering capacity of the support body, effectively suppressing wheel deformation under heavy loads or impact loads, further enhancing driving safety.

This application relates to the field of vehicle control technology, specifically to an all-terrain adaptive chassis control method, system, and computer program product. The method includes: identifying the current driving terrain and determining the dominant terrain mode; calculating multiple state indices characterizing the current driving condition based on the vehicle's dynamic state; generating multiple control priority indicators based on the dominant terrain mode, multiple state indices, and driver's operational intentions; querying a pre-calibrated strategy parameter mapping table based on the multiple control priority indicators and the dominant terrain mode to generate target instruction sets for each chassis actuator; and distributing the target instruction sets to each chassis actuator for coordinated execution. This method can dynamically balance passability, stability, and comfort under complex and varied terrain conditions, comprehensively improving the overall vehicle performance and driving safety.

This invention discloses a system and method for lane-changing and clustering of connected autonomous driving fleets in bottleneck areas. It generates corresponding lane-changing and clustering schemes based on the type of vehicle ahead, calculates the lateral offset of the vehicle ahead, and utilizes a cooperative search intelligent optimization algorithm to improve the accuracy of the lateral offset. The impact values ​​of collision factors and the safety thresholds of collision impact factors are input into a collision risk assessment model to determine whether there is a collision risk, thereby controlling the connected autonomous driving fleet. Finally, based on an information matrix, the types of lagging vehicles in the target lane are discussed to complete the lane-changing and clustering process. This invention can improve traffic efficiency in bottleneck areas while ensuring driving safety.

This invention discloses an intelligent terminal system that changes the interface skin according to environmental changes, relating to the field of communication technology. The system includes the following steps: acquiring the driver's gender information and determining the main color scheme of the interface based on the gender information; collecting the driver's facial emotions and generating a face recognition result; collecting the brightness value inside the bus and comparing the brightness value with a set threshold to obtain the current brightness level; acquiring the current location information of the bus and connecting to a server to obtain the current weather conditions based on the location information; comprehensively analyzing the obtained data and searching and configuring it with an interface database, outputting the configured result, and changing the current interface skin to the updated interface skin to complete the skin change; judging the driver's emotional state based on the skin change result and providing reminders to the driver accordingly. This invention not only changes the traditional impression left by in-vehicle terminal devices on customers but also improves vehicle driving safety and enhances user satisfaction.

This application relates to the field of vehicle control, specifically to a method for controlling a sunroof and a vehicle. This application, upon responding to a sunroof opening operation, compares the actual opening degree of the sunshade with the maximum driven opening degree to clarify the relationship between the two, thus mitigating the risk of premature sunroof opening from the control source. Secondly, based on the comparison results, a targeted motion strategy is formulated. If the actual opening degree of the sunshade already meets the maximum driven opening degree, the sunroof can be directly controlled to open normally. If not, the strategy is adjusted to ensure that the sunroof movement does not exceed the sunshade's adaptation range, avoiding an imbalance in the two opening degrees. Finally, this control logic does not require modification of the existing independent mechanical structure. Through linked judgment and strategy adjustment, it achieves dynamic adaptation between the sunroof opening and the sunshade opening degree, completely solving the problem of sunshade damage due to airflow impact and friction during driving caused by mismatched opening degrees, ensuring component lifespan and driving safety.

This invention belongs to the field of tire rubber material technology and discloses a self-healing, puncture-resistant rubber composition and its preparation method. The composition uses solution-polymerized styrene-butadiene rubber, cis-butadiene rubber, and halogenated butyl rubber as the rubber matrix, and incorporates nano-silica, bio-based organic acid surface-modified carbon black, hydrophobically modified lignin, PHA, TESPT coupling agent, compound compatibilizer, and a vulcanization system composed of diphenylurea and sulfur. This invention optimizes interfacial compatibility and crosslinking uniformity through the synergistic effect of multiple components, significantly improving the low-temperature flexibility, abrasion resistance, wet skid resistance, puncture resistance, and puncture repair performance of the rubber, while reducing rolling resistance. It effectively overcomes the problems of rubber embrittlement and uneven filler dispersion in cold environments, and can significantly improve the range and driving safety of pure electric vehicles in low-temperature environments. The preparation method is simple and suitable for large-scale industrial production.

This application discloses a multimodal rain-sensing wiper system for vehicles, comprising: a multimodal sensing module that collects first sensing data characterizing the state of rainwater on the glass surface and second sensing data characterizing the motion state of raindrops in the air; an intelligent control module that fuses the two types of data to generate a fused rainfall feature value and generates a wiping mode command accordingly; and a low-noise execution module composed of vibration-damping composite material and a buffer device that executes the wiping action and suppresses noise. This application solves the problem of low recognition accuracy of a single sensor by fusing optical and radar sensing data from different sources, achieving accurate determination of rainfall intensity; simultaneously, it utilizes the damping properties of the composite material and the buffer device to reduce noise from both the vibration source and the transmission path. Compared with existing technologies, this application improves rainfall detection accuracy and controls operating noise at a low level, significantly improving driving safety and comfort.

The application discloses a bulge self-detecting intelligent tire, a tire bulge detection method and electronic equipment. The bulge self-detecting intelligent tire comprises a tire body, a bulge detection line and a signal processing mechanism, the bulge detection line is fixedly connected with a tire side of the tire body, the signal processing mechanism is fixedly connected with an inner side of a tread of the tire body, the bulge detection line is electrically connected with the signal processing mechanism, and the signal processing mechanism outputs an alarm signal when the resistance of the bulge detection line is greater than or equal to a preset resistance threshold. The application fixes the bulge detection line to the tire body, detects the resistance change of the bulge detection line through the signal processing mechanism electrically connected with the bulge detection line, judges whether the tire is bulged based on the resistance change, and timely alarms when the tire is at the risk of being bulged. The bulge self-detecting device of the application is integrated on the tire body, does not need additional space, does not need to increase a large amount of weight, reduces the risk of tire burst of a vehicle, and greatly improves the driving safety of the tire.

This invention relates to the field of intelligent transportation and road engineering technology, specifically disclosing a method and system for splitting and assembling modular vehicle platoons on mountainous highways. First, it acquires real-time road element parameters, platoon perception characteristic parameters, and operational status parameters. Then, it calculates the available line-of-sight (CASD) for platoon cooperation, establishing a multi-factor nonlinear platoon drivability index (CDI) model with CASD as the core constraint to complete the spatiotemporal partitioning of road segment risks. Subsequently, it constructs a marginal benefit decision-making model to achieve forward-looking decision-making for splitting and assembling. Finally, it formulates a splitting strategy matching the cooperative perception boundary and a drivability recovery-oriented assembly strategy to achieve dynamic adaptation of the platoon structure to the traffic conditions of mountainous roads. This invention solves the shortcomings of existing technologies, such as poor scenario adaptability, delayed passive response, and failure to consider platoon perception characteristics. It can be directly applied to the engineering practice of autonomous driving freight platooning on mountainous highways, balancing driving safety and traffic economy.

The utility model relates to the field of stabilizer bar, especially transverse stabilizer bar's adjustable connecting structure of four -wheel electric vehicle. The utility model discloses stabilizer bar, axle bush and pull rod, stabilizer bar is trapezoidal, and the both ends are punched into the ear piece, axle bush is covered in the middle part of stabilizer bar, and pull rod is provided with two, and is hinged in the both ends of stabilizer bar respectively, and pull rod is installed on the frame, and axle bush is connected with hydraulic device still, and the top of hydraulic device is fixed with bolt and set up on the frame. Axle bush connects hydraulic device, and is electrically connected with automobile ECU and is equipped with electric control proportional valve, can automatically or manually adjust the lateral stabilizer bar roll stiffness according to the intention of driver or road condition. When driving fiercely or high -speed driving, ECU controls electric control proportional valve to adjust hydraulic device output pressure according to sensor group feedback, and the roll stiffness is increased, and the control stability and high -speed driving safety are enhanced.

The application provides a safety belt use state detection method and a vehicle, and relates to the technical field of automobile safety. The method comprises the following steps: acquiring a state signal of a safety belt buckle and an acceleration signal in a safety belt pulling process; determining whether the safety belt buckle is in an insertion state according to the state signal; if the safety belt buckle is in the insertion state, obtaining a pulling dynamics characteristic of the pulling process based on the acceleration signal; and determining a use state of the safety belt according to the pulling dynamics characteristic and a pre-stored reference characteristic. The reference characteristic is determined based on the acceleration signal in the pulling process of the safety belt under different use conditions, so that whether the safety belt is effectively buckled is inferred by analyzing the dynamics characteristic of the safety belt pulling behavior, the accuracy of safety belt state detection is improved, and the driving safety of the vehicle is improved.

The application discloses a method for identifying speed displacement physical mismatch in a suspension system and a vehicle, and relates to the field of automobile control. The method is characterized in that: in the suspension system rebound process, multiple source signals are analyzed, an original topology graph is generated, and the multiple source information is processed from three levels of abnormal information in topology structure, walk offset probability and physical simulation consistency, and the identification result of the speed displacement mismatch of the suspension system is obtained. The method can analyze the physical consistency of the displacement speed in the suspension system rebound process, determine the evolution process of the topology and dynamics of the suspension system, and realize high-precision identification of the speed displacement mismatch, thereby improving driving safety.

This application relates to the field of lens processing and discloses a lens manufacturing method, a glasses manufacturing method, a lens, and glasses. The lens manufacturing method includes: determining target vehicle information based on the application scenario information of the lens; acquiring the display parameters of the vehicle display of the target vehicle information, wherein the vehicle display is configured to output polarized light signals to the target area to form a display image in the target area, and the display parameters include at least the polarization angle parameters of the polarized light signals; providing an optical lens layer; and setting a polarization layer on the optical lens layer with a polarization angle matching the polarization angle parameters to obtain a lens. This improves the brightness of the user's field of vision and reduces glare when wearing glasses containing the lens. Furthermore, the optical effect of the manufactured lens can be flexibly adjusted according to the vehicle model driven by the user, so that the polarization angle of the lens is adapted to the vehicle display of the vehicle being driven, thus combining the functions of blocking sunlight and acquiring information displayed on the vehicle display, thereby improving the driving experience and driving safety.

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 application provides a windshield defrosting and defogging system, method, and vehicle. The method includes: when an obstruction is detected on the windshield, determining a removal type based on pre-acquired environmental information inside and outside the vehicle; obtaining a removal mode based on the environmental information and pre-acquired image information of the windshield; generating control parameters based on the removal type and removal mode; and sending the control parameters to the windshield defrosting and defogging system. This causes the air conditioning unit in the windshield defrosting and defogging system to adjust an electric valve based on the control parameters to generate airflow in a first air duct and / or a second air duct, thereby removing the obstruction. Through intelligent adjustment and efficient air duct design, rapid removal of obstructions from the windshield is achieved, improving driving safety and convenience, while also achieving energy conservation, environmental protection, and enhanced user experience.

The application discloses a drive system fault analysis method and system based on motor current ripple, and relates to the field of electric bicycle drive state monitoring. The method comprises the following steps: collecting motor stator current signals, rotating speed, electric angle and environmental working condition parameters synchronously, removing noise interference by combining adaptive filtering technology, and extracting target ripple signals carrying load information; based on the physical parameters of the motor and the structure of the drive system, a dynamic coupling model is constructed to generate theoretical reference ripple signals under normal and multiple fault states; by comparing the measured ripple signals with the reference signals, system deviation information is obtained, and a composite fault feature vector is further extracted; finally, the feature vector is mapped to a fault mode library to accurately identify fault types such as gear wear, chain slack or bearing defects. Thus, through real-time analysis of the motor current ripple, the health monitoring capability of the electric bicycle drive system and the driving safety are effectively improved.

This application relates to the field of vehicle technology, and particularly to a method and apparatus for lane-changing decision-making and delay compensation control based on predictive information. The method includes: acquiring traffic information collected by a roadside sensing unit; predicting traffic information of vehicles within the sensing range over a future period based on the traffic information, and constructing a multi-objective optimization problem of the target vehicle's future driving environment based on the predicted information; solving the multi-objective optimization problem to obtain the target vehicle's optimal expected speed and lane-changing decision time; and sending the expected speed and lane-changing decision time to the target vehicle. The target vehicle responds to the expected speed and lane-changing decision time using its own lane-changing safety judgment algorithm, lane-changing path planning algorithm, and delay compensation control algorithm to adjust its speed and change lanes in advance. This addresses the problems in related technologies, such as low matching degree between vehicle lane-changing planning and current traffic, and delays in the vehicle control system leading to poor control accuracy and stability, and low driving safety.

This invention provides a dynamic anti-glare highway lighting guardrail system, method, electronic device, and medium, relating to the field of highway traffic safety facilities technology. The system includes a guardrail body, a target detection module, lighting units, a main control unit, and a power supply module. The target detection module is mounted on the guardrail body, facing the direction of oncoming road targets, and collects the target's position and movement parameters in real time. The lighting units are arranged at intervals along the guardrail and can be independently adjusted, with the light emission direction adapted to the traffic direction and at a preset tilt angle relative to the road surface, focusing on the road surface. The main control unit connects each module and dynamically adjusts the working state of the corresponding lighting units based on the collected target information, forming an anti-glare adaptation area that moves synchronously with the target. The power supply module provides stable power. This application can achieve precise and dynamic anti-glare, balancing lighting effect and energy saving requirements, is easy to install and maintain, adaptable to various road scenarios, and improves nighttime driving safety.

The utility model discloses a general vehicle full -color night -vision auxiliary driving system, including multi -objective camera, individual helmet, car machine big screen and panoramic video processor, multi -objective camera all with panoramic video processor electricity is connected with individual helmet, car machine big screen, the multi -objective camera is used for gathering the image of vehicle surrounding environment, individual helmet is provided with head -mounted display, and the head -mounted display of individual helmet is used to present the image of vehicle surrounding environment after the processing of panoramic video processor, car machine big screen is used for presenting the image of vehicle surrounding environment after the processing of panoramic video processor on the vehicle. The utility model solves the problem that the imaging color of traditional vehicle night -vision auxiliary equipment is single, the detail is not clear, cannot provide panoramic visual information, is difficult to effectively integrate with vehicle system, helps the driver to be more accurate in judging the road condition under the night and complex environment, and improves driving safety and convenience.

This utility model discloses a low-temperature resistant and interference-resistant vehicle lamp, including a supporting shell. An isolation cover is fixedly installed on the side of the supporting shell, and a mounting frame is fixedly connected to the outer side of the supporting shell. A fixing screw is inserted into the side of the mounting frame, and an inner isolation plate is fixedly snapped onto the inner side of the supporting shell. Advanced UV electroplating technology concentrates the light pattern, greatly improving luminous efficiency. This not only reduces glare affecting other road users but also increases the illumination distance, allowing drivers to see the road ahead more clearly at night or in adverse weather conditions, effectively ensuring driving safety. The cover is made of UV-resistant material, increasing wear resistance and effectively preventing scratches. During long-term use, even under various harsh environments and external friction, it maintains good appearance and light transmission, extending the lamp's lifespan and reducing the frequency and cost of lamp replacement.

The application discloses a kind of brake-by-wire control system's auxiliary pressure loop and fault detection method, comprising: liquid storage tank;The output of the liquid storage tank is connected with analog circuit and pressure loop by check isolation valve;Under normal brake assist, the analog circuit is closed, the pressure loop is communicated, and pressure brake is carried out to wheel cylinder, under the activation of ABS brake assist, the liquid supplement valve of the pressure loop is opened, and pressure is built again;Through auxiliary pressure loop, and in the fault diagnosis method in ABS activation condition, the generation of the problem of the decrease of assist performance when the vehicle mechanical backup cannot be timely cut to due to circuit leakage can be prevented, to ensure the driving safety of driver.

The application relates to a driving scene-based song MV automatic generation method and device, and belongs to the technical field of vehicle control, wherein the driving scene-based song MV automatic generation method comprises the following steps: determining a driving scene of a target vehicle based on an average vehicle speed and a steering wheel angle change rate of the target vehicle from a target time to a current time, wherein the time interval between the target time and the current time is a first preset time length; determining picture color saturation, video frame switching frequency and visual element complexity of a song MV based on the driving scene of the target vehicle; and adjusting the picture color saturation, the video frame switching frequency and the visual element complexity of the song MV based on the driving scene of the target vehicle, a currently played lyric segment, a visual feature of a currently played video frame sequence and a next played lyric segment. The application can improve in-vehicle entertainment while ensuring driving safety.

A detection method and apparatus, and a vehicle. The method comprises: acquiring a first group of images collected by a first camera apparatus of a vehicle, wherein the first group of images comprises at least one image frame; when the first group of images does not comprise pixels corresponding to a first object, controlling a second camera apparatus of the vehicle to acquire a second group of images, wherein the second group of images comprises at least one image frame; and on the basis of the second group of images, determining information of the first object. The technical solution can be applied to the field of intelligent driving of intelligent vehicles such as electric vehicles and new energy vehicles. When a front-view camera apparatus of a vehicle cannot detect road information, a camera apparatus with a variable yaw angle is controlled to acquire images in the orientation of the road information, such that relevant road information can be detected in a timely manner, thereby helping to ensure travel safety and traffic efficiency.

The application relates to a city tunnel traffic state prediction system based on deep learning and adaptive decomposition, which comprises a data acquisition module, a data processing module, a model construction and prediction module, an information release module and a data storage module. The data acquisition module is used for acquiring vehicle average speed and flow data of a target city tunnel main line, an entrance and exit ramp and a diverging and merging area. The data processing module is used for determining parameters of a variational constraint signal decomposition to form multi-modal components. The model construction and prediction module is used for constructing a bidirectional space-time gate unit learning mode component based on an Adam gradient descent algorithm, learning time dependence of the mode component and predicting trends of each mode component. The information release module is used for displaying historical and predicted data based on traffic flow and average speed. The data storage module is used for receiving traffic flow and average speed data predicted by the model construction and prediction module and performing storage and management. Through fusion of adaptive decomposition and a deep learning model, the application effectively improves prediction accuracy and robustness, provides decision support for drivers and traffic managers, and improves traffic efficiency and driving safety.

The application provides a vehicle power loss safety control method, device, equipment and storage medium, the method comprises the following steps: acquiring the state information of the vehicle in real time and storing; if it is detected that the first vehicle controller fails, the first vehicle controller is reset, and it is judged whether the first vehicle controller restarts within the first preset time; if it is not restarted within the first preset time, the first vehicle controller is determined as a fault point, and the second vehicle controller is triggered to switch, wherein the first and second vehicle controllers form redundant control; it is judged whether the second vehicle controller completes the switching within the second preset time, if yes, the second vehicle controller performs redundant control according to the state information; if not, a safety control strategy is executed and an alarm is given, the application adopts the above-mentioned mode to avoid the external power abnormality, improves the driving experience, avoids the safety hidden danger caused by the power loss, and greatly improves the driving safety of the vehicle.

This invention provides a method and equipment for evaluating the environmental complexity of autonomous driving. The method senses the driving environment elements of an autonomous vehicle, analyzes the composition and interaction mechanisms of static and dynamic driving environment elements, and determines the influencing factors of traffic environment complexity. Based on the complexity influencing factors and the spatiotemporal characteristics of driving environment elements, it constructs equivalent mass, driving strategy contribution, and static traffic driving environment complexity coefficients, and introduces them into a universal gravitation model to establish a spatiotemporal quantified gravity model to calculate the instantaneous longitudinal traffic environment complexity. The instantaneous complexity corresponding to multiple dynamic elements is weighted and summed to obtain the overall instantaneous complexity, and then the cumulative longitudinal traffic environment complexity is obtained through time integration, thus completing the environmental complexity evaluation. This invention can comprehensively and accurately quantify traffic environment complexity, effectively improving the environmental adaptability and driving safety of autonomous vehicles in complex scenarios.

The application provides a vehicle control method and device, electronic equipment and vehicle. The method comprises: in response to receiving fault information of a rear axle shift controller, generating a corresponding rear axle gear control instruction and a corresponding engine control instruction according to the fault information; sending the rear axle gear control instruction to the rear axle shift controller to make the rear axle shift controller adjust the rear axle gear; and sending the engine control instruction to an engine controller to make the engine controller adjust the running state of the engine. The driving torque output by the rear axle motor and the driving torque output by the engine are combined to provide vehicle power, the driving force provided by the rear axle under fault conditions is fully utilized, the engine driving force is reduced or avoided under the premise of ensuring driving safety and the hardware safety of the rear axle shift controller, and the energy utilization efficiency of the vehicle is improved.

This application discloses a rendering method, apparatus, device, and storage medium, relating to the field of intelligent driving technology. The method includes: receiving a user's theme switching command and loading a theme configuration file corresponding to the command to obtain corresponding theme rendering parameters; acquiring environmental perception data of the vehicle and determining the object to be displayed on the vehicle's in-vehicle interface based on the environmental perception data, the object representing obstacles within a preset range of the vehicle; generating a geometric line drawing of the object to be displayed based on the environmental perception data, the geometric line drawing representing the outline of the obstacles; and rendering the object based on the theme rendering parameters using the geometric line drawing as a constraint to obtain the theme object corresponding to the in-vehicle interface. This application constrains the theme rendering process by combining the geometric line drawing generated from the environmental perception data, achieving theme switching while avoiding visual distortion or obstruction of core safety information, thus improving driving safety.

This invention provides a fault location method, cloud server, and system for an in-vehicle infotainment system. It determines feature vectors for various fault characteristics based on fault data, representing the importance of each fault characteristic to each fault type with quantifiable numerical values ​​(correlation values), thus eliminating biases from human judgment. Because the fault diagnosis model can learn the complex patterns between feature combinations and fault rationality, model-based diagnosis can more accurately identify fault types. Since the three-dimensional correlation matrix associates fault types with possible root causes and corresponding original fault characteristics, it can accurately locate the most likely root cause of the fault. Compared to existing fault location methods that require manual inspection of vehicle logs, this invention utilizes a fault diagnosis model and a three-dimensional correlation matrix of fault root causes to complete most of the fault location work, significantly shortening fault diagnosis time, improving fault diagnosis efficiency, and thus ensuring driving safety.

The present disclosure relates to a method and a device for safety detection during gear changes, a transmission, a vehicle, and a medium. The method comprises: determining that a shift fork within the vehicle's transmission is moving toward a target gear. The method further comprises: determining a first rotational speed of a shift sleeve controlled by the shift fork within the transmission. The method further comprises: determining a second rotational speed of the target gear. The method also further comprises: switching off the drive power to the shift fork in response to the first and second rotational speeds satisfying a predetermined condition.In this way, the method is able to switch off the drive power of the shift fork before the shift sleeve collides with the gear, reduce the shock between the gear and the shift sleeve, extend the service life of the gear and the shift sleeve, and improve driving safety.