192 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.

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.

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 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 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 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.

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.

The invention relates to the field of vehicle protection, and particularly relates to a vehicle collision automatic protection system and method. The protection system comprises a sensing device, a control device and a braking device, wherein the sensing device comprises a contact sensor and a crumple structure, the contact sensor is used for sensing a collision signal generated by collision whena vehicle is collided, and the crumple device is used for generating deformation to absorb impact force of collision when the vehicle is collided; the control device receives the collision signal andgenerates a braking signal lasting for a preset time based on the collision signal; the braking device brakes the vehicle based on the braking signal, automatic braking can be achieved after the vehicle collides, secondary collision is prevented, risks are reduced, and losses are reduced.

Provided is a cost effective apparatus that can be attached to a preexisting guardrail end terminal infrastructure to gradually decelerate a vehicle, after a collision, in a controlled manner to prevent the guardrail from impaling the vehicle and the projection of debris on the highway. The safety guardrail comprises a front plate having an anterior surface and posterior surface. One or more support plates are connected to the posterior surface of the front plate. The safety guardrail also comprises one or more four-walled non-linear diverters defining a path between an open anterior end and open posterior end, the one or more diverters connected to the one or more support plates. One or more guardrails having an anterior end and a posterior end, the anterior end of one or more guardrails located inside the path of the diverter. One or more posts are distributed in a first plane, the first post in the plane having a top part connected to the one or more diverters and the one or more support plates. The anterior end of the one or more diverters flare in a direction away from the first plane. Two or more guardrail layers may be positioned parallel to the first plane and are connected parallel to one another, and at least one of the guardrails is located inside the path of the diverter. Also provided is a method of installing the apparatus to existing highway infrastructure.