195 results about "Post collision" patented technology

A system and method to avoid collisions on highways, and to minimize the fatalities, injury, and damage when a collision is unavoidable. The system includes sensors to detect other vehicles, and computing environments programmed to evaluate when a collision is imminent and to determine whether the collision is avoidable. If the collision is avoidable by a sequence of controlled accelerations and decelerations and steering, the system implements that sequence of actions automatically. If the collision is unavoidable, a different sequence is implemented to minimize the overall harm of the unavoidable collision. The system further includes indirect mitigation steps such as flashing the brake lights automatically. An optional post-collision strategy is implemented to prevent secondary collisions, particularly if the driver is incapacitated. Adjustment devices are provided to enable the driver to set the type and timing of automatic interventions.

A method predicts trajectories of traffic objects to avoid collisions. The method estimates the probability for at least two traffic objects to collide, and predicts a potential movement of the traffic objects presumably involved in the collision after the collision. This information about a potential movement of the traffic objects can be used to plan a suitable trajectory path of an evasion manoeuvre for a host-vehicle employing the method. A system detects the collision situation and applies crash situation models to predict the future dynamic properties of other traffic objects that collide or are about to collide with each other. The method and system applies specific crash models like collision models, models derived from crash simulations and tests or models of human reactions in emergency situations.

A system and method that utilizes information relating to vehicle damage information including damaged vehicle area information, crush depth of the damaged areas information, and vehicle component-by-component damage information to determine the relative velocities of vehicles involved in a collision. The change in velocity is estimated using a plurality of methods, and a determination is made as to which method provided a result that is likely to be more accurate, based on the damage information, and the types of vehicles involved. The results from each method may also be weighted and combined to provide a multi-method estimate of the closing velocity. The methods include using crash test data from one or more sources, estimating closing velocity based on the principals of conservation of momentum, and estimating closing velocity based on deformation energy resulting from the collision.

A system and method that utilizes information relating to vehicle damage information including damaged vehicle area information, crush depth of the damaged areas information, and vehicle component-by-component damage information to estimate the relative velocities of vehicles involved in a collision. The change in velocity is estimated using a plurality of methods, and a determination is made as to which method provided a result that is likely to be more accurate, based on the damage information, and the types of vehicles involved. The results from each method may also be weighted and combined to provide a multi-method estimate of the closing velocity. The methods include using crash test data from one or more sources, estimating closing velocity based on the principals of conservation of momentum, and estimating closing velocity based on deformation energy resulting from the collision.

A system and method to avoid collisions on highways, and to minimize the fatalities, injury, and damage when a collision is unavoidable. The system includes sensor means to detect other vehicles, and computing means to evaluate when a collision is imminent and to determine whether the collision is avoidable. If the collision is avoidable by a sequence of controlled accelerations and decelerations and steering, the system implements that sequence of actions automatically. If the collision is unavoidable, a different sequence is implemented to minimize the overall harm of the unavoidable collision. The system further includes indirect mitigation steps such as flashing the brake lights automatically. An optional post-collision strategy is implemented to prevent secondary collisions, particularly if the driver is incapacitated. Adjustment means enable the driver to set the type and timing of automatic interventions.

An electric controller starts post-collision control when an acceleration of the vehicle detected by means of sensors mounted on the vehicle is greater than an acceleration threshold (i.e., after occurrence of a collision of a vehicle). In the post-collision control, the electric controller fixes the throttle valve opening to a predetermined value, and shifts the transmission from the present gear position to an adjacent lower-side gear position. Moreover, the electric controller controls the hydraulic pressure of the brake such that the vehicle deceleration in the front-rear direction detected by means of the sensors becomes a target deceleration.

The invention relates to an automatic emergency braking system based on an AEB system, which is characterized in that the system comprises an environment sensing mechanism, a control strategy and an actuating mechanism. The environment sensing mechanism collects the driving state of the automobile in real time and processes the corresponding data through the control strategy; The control strategydiscriminates the data processing result collected by the environment sensing mechanism through the control strategy, and the execution mechanism executes the operation according to the discriminationinformation of the control strategy. When the system detects a potentially dangerous target object in front of the vehicle, it will alert the driver of the risk and take pre-braking measures if necessary; If the driver's instructions are not received within the reaction time, the system partially brakes to slow the vehicle and then stops the vehicle with a full brake to help the driver avoid a collision or mitigate post-collision damage.

A crash structure is provided that is interposed between a vehicle's bumper and a vehicle side rail, the crash structure providing relatively level loading in a compact structure that is easily removed and replaced during post-collision repairs. The structure includes an actuator member coupled to the bumper, the actuator member passing into, and slidably disposed within, a hollow housing of the crash structure. The hollow housing contains a plurality of deformable members that at least partially surround a first portion of the actuator member. A second portion of the actuator member, which is between the bumper and the first portion of the actuator member, has a larger diameter than that of the first portion of the actuator member and may be coupled to the first portion via a chamfered transition region.

A method predicts trajectories of traffic objects to avoid collisions. The method estimates the probability for at least two traffic objects to collide, and predicts a potential movement of the traffic objects presumably involved in the collision after the collision. This information about a potential movement of the traffic objects can be used to plan a suitable trajectory path of an evasion maneuver for a host-vehicle employing the method. A system detects the collision situation and applies crash situation models to predict the future dynamic properties of other traffic objects that collide or are about to collide with each other. The method and system applies specific crash models like collision models, models derived from crash simulations and tests or models of human reactions in emergency situations.

A mounting system for a control module in a vehicle comprises a housing with a flange formed with an opening adapted to receive a fastener for securing the housing to the vehicle. A crack initiator causes a crack to occur in the flange or the housing and thus reduces bending of the housing during a side impact collision causing lateral forces. Preferably, an attachment bolt extends through the opening into the vehicle and the flange forms a C-shape around the opening to allow lateral forces during the side impact collision to force the attachment bolt to slide out of the opening. Preferably, electronic components in the module include an event data recorder for recording data about the vehicle collision and relaying the data after the collision, a communications system for calling for assistance and a controller for cutting off the vehicle fuel supply.

The invention discloses a multisource data mining-based vehicle intelligent driving system validity evaluation method. The method comprises the steps of 1) obtaining a to-be-evaluated vehicle model, a random traffic scene model and a passenger injury model through multisource data mining; 2) based on the random traffic scene model and the vehicle model, simulating a specific scene of an accident; 3) simulating the scene by utilizing accident reconstruction software, and outputting a post-collision vehicle state; 4) in combination with the passenger injury model, calculating a passenger injury risk and a unit mileage risk after the accident; and 5) replacing the to-be-evaluated vehicle model with a conventional model, and repeating the steps 1) to 4) to obtain unit mileage and passenger injury risks of a vehicle free of a to-be-evaluated system; and then comparing injury results under the conditions that the to-be-evaluated system exists and does not exist, thereby obtaining the validity of the system. An evaluation platform depends on multisource data and known software, can realize evaluation of multiple intelligent driving systems, is low in running cost and high in speed, and has relatively good universal applicability.

The embodiment of the invention provides a narrow slit escape method, device and equipment of a sweeping robot and a readable storage medium. The method comprises the following steps: advancing towards a narrow slit area along a pre-planned route in a first advancing direction, adjusting the first advancing direction to a direction far away from the first collision occurrence direction by a firstangle after detecting that a first collision occurs, and controlling the sweeping robot to advance along a second advancing direction after the first angle is adjusted; and if the second collision isdetected, executing an escape strategy according to the direction of the second collision until the sweeping robot is in a predetermined state. The first collision direction of the sweeping robot is detected, and the advancing direction is adjusted in the direction away from the first collision occurrence direction and the escape strategy is executed according to the second collision occurrence direction until the predetermined state is achieved so that whether the sweeping robot can pass through the narrow slit or not can be determined, effective attempt to pass through the narrow slit or notis achieved, the actual use requirement is met and the user experience of the sweeping robot is improved.

The invention relates to a system and method for establishing target division remote damage assessment of different vehicle types based an artificial intelligence radial basis function neural network method and belongs to the vehicle damage assessment field. The objective of the invention is to solve problems in target detection of collision vehicles after a vehicle collision. According to the technical schemes of the invention, a target detection subsystem is adopted to judge collision objects in the vehicle collision; the target detection subsystem learns target training data so as to generate a target model, wherein the target model is built by adopting the radial basis function neural network method. With the system and method provided by the technical schemes of the invention adopted, target detection in the vehicle collision can be realized; and a machine learning method is used in the remote damage assessment technical field, so that the accuracy of judgment in a damage assessment process can be improved.

The invention provides a correction method for a chest compression deformation amount of a dummy in a collision test. The correction method comprises the following steps of: S1, defining a dummy chestimpact test point, namely taking a measurement point, mapped to a dummy waistcoat along an X axis, of a measurement point of a dummy chest compression deformation amount measurement sensor as a measurement origin P0; S2, selecting a plurality of test points deviating from the measurement origin in the vertical direction of a dummy sagittal plane along a Z-axis direction in the dummy sagittal plane, wherein P is the distance from the test points to the measurement origin P0, and the distances between the test points are equal; and S3, conducting pendulum bob impact tests on all the testing points, so that the chest of the dummy generates a compression deformation amount D. The correction method for the chest compression deformation amount of the dummy in the collision test is simple to operate, sufficient in theoretical basis, simple in test logic and easy to operate,can quickly and accurately compare and accurately correct the chest compression deformation amount of the dummy after collision, and provides a technical support for accuracy and fairness of automobile safety laws and regulations and new automobile evaluation regulations.

The invention, which relates to the radio frequency identification (RFID) field in the internet of things, discloses a multi-label anti-collision guiding identification method for an RFID system. The method mainly comprises the following steps that: a reader sends a query command, all labels return whole label numbers and the reader receives data; after the reader determines that there is collision, a binary tree is obtained by splitting at a highest collision bit, wherein a left sub-tree branch is 0 and a right sub-tree branch is 1, and the reader issues a query instruction again and a query sequence is realized based on a guiding mode; and according to the guide mode, a branch with fewest collision bits is searched first. According to the invention, backtracking searching of a dynamic binary identification method can be avoided and the number of times for query is reduced; identification efficiency of a reader on multiple labels is substantially improved; and the provided method is suitable for rapid identification of the multiple electronic labels by the reader in an RFID system.

The invention discloses an analysis, calculation and simulative representation system for a combined accident of vehicle-vehicle collision and vehicle-fixed object collision, which is used for a public security traffic management department to assess a road traffic accident. By the system, the running speed and the collision speed of each accidental vehicle in an accident can be calculated, and two-dimensional track description and three-dimensional process representation of accidental vehicles, main calculation data table output of the combined accident of vehicle-vehicle collision and vehicle-fixed object collision and accident occurrence process brief description text output are realized by utilizing basic data acquired by accident scene investigation. The system can be widely popularized and applied, and the technical content of traffic accident assessment and settlement can be effectively improved, so the analysis and assessment result of the system can be easily and highly accepted by the traffic management department, an accident assessment organization and accident parties, the important effects of distinguishing responsibility, avoiding contradiction intensification, reducing social instability factors, enhancing social life and harmonious operation and the like are achieved, and the assessment of the road traffic accidents of China is promoted to develop more scientifically, accurately and authoritatively.

The invention discloses a control method for unstable motion of an unmanned vehicle after collision. The method is applied to an unmanned vehicle with a distributed independent drive braking executionfunction. The instability motion control of the pilotless automobile under different collision conditions can be realized; tire force potential is fully utilized, reverse generalized tire lateral force is provided through active front wheel steering, reverse yawing moment is provided through coordination of four-wheel motor driving / braking control, and motion control over the unmanned vehicle after collision under the high-speed working condition is achieved. Through simulation verification, the control strategy provided by the invention can effectively reduce the motion deviation of the vehicle in the collision process so as to reduce the occurrence probability of subsequent collision, and has important engineering practical application significance of quick response, strong real-time performance and the like.

The invention discloses an explosion-proof and flame-retardant device for a new energy automobile battery, which relates to the technical field of new energy automobile battery packs, and provides the following scheme aiming at the problems that the battery packs are easy to explode and burn after being collided: the explosion-proof and flame-retardant device comprises a mounting frame and a chassis, and four groups of mounting seats are fixedly mounted at the top of the mounting frame through bolts; a battery is placed at the top of each mounting seat, eight connecting blocks are welded to the periphery of each battery, third boxes are welded to the sides, away from the batteries, of the eight connecting blocks, movable plates are slidably connected to the inner walls of the third boxes, and two hydraulic rods are welded to the sides, away from the batteries, of the movable plates. The explosion-proof and flame-retardant device has the explosion-proof and flame-retardant effects on the battery pack, prevents the battery pack from being easily exploded and fired after strenuous vibration and collision, effectively dampens and fixes the battery pack, simplifies the battery replacement operation of the battery pack, and is high in practicability and suitable for wide popularization.

The invention relates to a system for preventing secondary collision of vehicles, especially a control circuit system. The invention also relates to a running method of preventing the secondary collision of vehicles, a body collision sensor module and a signal transmitter are used in this method. The body collision sensor module is capable of judging whether collision exists; the signal transmitter is mounted on the body collision sensor module, and transmits signals after the body collision sensor module judges collision exists, in the way to protect the vehicle from the rear-end collision from others after the collision.

The invention discloses a road safety anti-collision guardrail, which comprises an impact module, a buffer module, a locking module, a connecting block, a shielding plate and a shielding plate connecting block, wherein the impact module comprises an impact frame, an upper conical plate, an impact column, a conical plate connecting plate and a lower conical plate, the impact column is fixedly connected to the middle of the impact frame, and the top end and the bottom end of the back of the impact column are fixedly connected with the upper conical plate and the lower conical plate respectively.According to the invention, the buffer module is arranged, when an automobile collides with the device, the inertia of the automobile can be buffered, so that the safety of a driver is protected, thestress borne by the device during impact is reduced, and thus the service life of the device is prolonged; and through the arrangement of the locking module, when the device is seriously impacted, the device can be clamped at the corresponding position, the situation that the automobile rebounds due to the elastic force of the pressure spring after being impacted is prevented, and thus the phenomenon of secondary impact generated when the automobile impacts the device is avoided.

It is determined an ADV is inevitable to collide with at least one of the objects surrounding the ADV based on the relative positions and speeds between the ADV and the objects in view of the physicaldimensions of the ADV. An object may be another vehicle, a pedestrian, a bicycle, a static obstacle. For each of the objects, a collision cost between the ADV and the object is calculated using a setof one or more cost functions or cost algorithms. A collision cost represents an amount of potential damage if the collision is to occur. One of the objects is selected whose collision cost is the least amongst the objects. A path or trajectory is planned for the ADV leading or towards to the selected object to minimize the potential damage when the ADV potentially collide with the selected object compared to the remaining objects.

The invention discloses a collision safety detection device for a fuel cell bus, and also discloses a control and use method of the collision safety detection device for the fuel cell bus. According to the invention, a pipeline interlocking detection scheme is adopted, and a simple, economical and high-precision hydrogen pipeline resistance stress detection device is used. Strain gauges are adhered to a hydrogen pipeline and a fuel cell box body to serve as test points, each strain signal is picked up and passes through a bridge balancing circuit and a signal amplifying circuit, and the deformation condition of each test point is judged, so that whether the hydrogen pipeline is damaged can be directly detected. In addition, whether the vehicle is collided or not is judged by integrating electric signals such as triaxial acceleration, an insulation resistance value, a hydrogen leakage value, the liquid level of cooling liquid of a fuel cell system and the like, the hydrogen leakage danger caused by damage of hydrogen management is found in advance, and secondary accidents such as explosion or personnel electric shock caused by hydrogen leakage after vehicle collision can be avoided.

The invention discloses an unmanned aerial vehicle dynamic obstacle avoidance method based on an improved mutual speed obstacle method, which improves a mutual speed obstacle method, reselects a new flight speed direction after judging that an unmanned aerial vehicle collides with an obstacle, and reselects the optimal flight speed and flight direction according to a current position of the unmanned aerial vehicle and a target point after obstacle avoidance is finished. According to the unmanned aerial vehicle dynamic obstacle avoidance method, factors such as time, place and distance of collision between the unmanned aerial vehicle and the dynamic obstacle are comprehensively considered, and particularly, speed selection is performed after the collision is judged, so that a smooth track and a collision-free flight path of the unmanned aerial vehicle are ensured, and therefore, the unmanned aerial vehicle can select the velocity vector according to the size of the unmanned aerial vehicle and the radius and distance of the dynamic obstacle to reduce unnecessary jitter and shorten collision avoidance time.

The invention discloses a gas cylinder container cell with an anti-collision function and a using method, and belongs to the technical field of container cells. The gas cylinder container cell comprises a bearing plate; the upper surface of the bearing plate is fixedly connected with a bottom plate; four corners of the upper surface of the bottom plate are fixedly connected with stand columns; a top plate is arranged above the bottom plate; the upper surface of each stand column is fixedly connected to the bottom surface of the top plate; lifting mechanisms are arranged on the two side faces of the top plate; a moving plate is arranged below the top plate; through holes arranged at equal intervals are formed in the moving plate; and an air bag is fixedly connected into each through hole. According to the gas cylinder container cell, the lifting mechanism is arranged, so that a gas cylinder can be automatically limited; the gas cylinder is convenient to take; the effect of clamping the gas cylinder in advance is achieved by arranging the limiting mechanism; the stability of gas is guaranteed; through an inflation and suction dual-purpose pump, the through holes and the air bags, the situation that a single gas cylinder is impacted and then transferred to other gas can be avoided; and the safety during gas storage is improved.

The invention belongs to the technical field of road traffic safety, and particularly provides asafety protection semicircular groove devicefor a low-grade highway roadside electric power rod piece. The device comprises an anti-collision pad used for automobile collision prevention, the anti-collision pad is a hollow annular sealing sleeve piece, and the inner wall of the annular sealing sleeve piece is fixedly attached to and surrounds an electric power rod piece. The length of the anti-collision pad is not smaller than 90 cm, and the inner side of the anti-collision pad is of a concave-convex circular groove structure with protrusions and grooves arranged alternately. According to the scheme, the contact area of the telegraph pole and an automobile is expanded, and after the device is collided, the device deforms and absorbs energy, so that the reaction is reduced, the deformation and acceleration of the automobile can be effectively reduced, harm to the automobile and passengers caused by collision of the automobile and the telegraph pole is reduced, the road safety is improved, and the passengers are protected; and on the other hand, the anti-collision pad is directly arranged on the power pole in a sleeving mode before the power pole is put into use by adopting an assembling mode, the construction process is simple, and the requirements for manpower and material resources are small.

The embodiment of the invention discloses a collision identification method and device, equipment and a storage medium. The method comprises the following steps that if the motion state of a moving object is detected to abruptly change according to speed information of the moving object, the abrupt changing speed, the abrupt changing acceleration and the abrupt changing time are determined, whether the moving object collides or not is determined according to the abrupt changing speed, the abrupt changing acceleration, a collision speed threshold and a collision acceleration threshold, if the collision occurs, the collision duration span is determined according to speed change information after the sudden change time, and the collision degree of the moving object is determined according tothe collision duration span. According to the method of the embodiment, by acquiring the abrupt changing speed of the moving object, whether the moving object collides or not is determined, the collision degree of the moving object is determined according to the speed change information after collision, hardware equipment for acquiring acceleration information is reduced, the requirement on hardware is reduced, accurate judgment on the collision degree is realized at the same time, and the processing efficiency of a collision accident is improved.

The invention relates to the technical field of parking lot management systems, and discloses an anti-collision mechanism for a parking lot barrier gate rod and application of the anti-collision mechanism. The anti-collision mechanism comprises a control box, wherein a short rod is movably connected to the back surface of the control box, a round nail is fixedly connected to the interior of the short rod, a long rod is arranged outside the round nail in a sleeving manner, and a first groove is formed in the short rod. According to the anti-collision mechanism for the parking lot barrier gate rod and the application of the anti-collision mechanism, when the barrier gate rod is transversely placed, due to the fact that the short rod and the long rod are movably connected through the round nail, the long rod can move front and back when being collided by vehicles, damage to the long rod after being collided is minimized, and the effect of preventing the vehicles from colliding with the barrier gate rod is achieved. When the barrier gate rod needs to be lifted, a positive electrode contact and a negative electrode contact make contact with a first metal rod and a second metal rod underthe action of gravity, so that the electromagnetic device is electrified, then the electromagnetic device attracts the limiting block to enter the first groove, and the effect of preventing the longrod from deviating during lifting is achieved.

A vehicle surrounding situation estimation device includes a collision detection unit that detects that a vehicle collides with an object outside the vehicle; a surrounding situation detection unit that detects a situation of a detection area around the vehicle; a surrounding situation estimation unit that estimates a situation of a prediction area around the vehicle at a collision time based on a detection result of the surrounding situation detection unit before the collision detection unit detects the collision; a surrounding situation recording unit that records the situation of the prediction area; and a surrounding situation prediction unit that predicts a situation of a vehicle surrounding area around the vehicle based on the situation of the prediction area after the collision detection unit detects the collision, the situation of the prediction area being recorded by the surrounding situation recording unit before the collision detection unit detects the collision.

The invention discloses an internal collision type multi-mass damper. A first mass block is connected with a mounting plate through a first elastic element, so that the effect of limiting the movement of all additional mass blocks is achieved, and the situation that the additional mass blocks are separated from a guide rail can be prevented; in addition, the damper has two energy consumption mechanisms, one energy consumption mechanism is collision energy consumption achieved after the adjacent additional mass blocks collide with each other, the other energy consumption mechanism is movement energy consumption achieved in the process that the additional mass blocks move on the guide rail, and the overall vibration reduction efficiency is greatly improved through superposition of the two energy consumption mechanisms; and meanwhile, due to the fact that collision occurs between the adjacent additional mass blocks, huge acting force at the moment of collision cannot be generated on a main body structure provided with the additional mass blocks, and the situation that the main body structure is locally damaged can be effectively avoided.

A method for triggering self-braking in a motor vehicle (1), in which following a first collision during an accident a self-braking request signal (13) is transmitted to a brake controller (ESC) by a collision sensor unit (7) by a communications device (6) of the motor vehicle (1). The multi-collision braking requested should be initiated in the event of damage to the brake controller (ESC) that is caused by the first collision. The request signal (13) is received by a control device of the motor vehicle (1) that is disposed at a distance from the brake controller (ESC). The control device (9) then determines whether the brake controller (ESC) responds to the request signal (13). If no response of the brake controller (ESC) is detected, the self-braking is initiated by the control device (9).