32 results about "Rear-end collision" patented technology

Techniques for determining a rear end collision probability for a vehicle are discussed herein. The rear end collision probability can be determined based on data associated with the vehicle and an object proximate the vehicle, probability distribution data, and a vehicle maneuver value. The probability distribution data, which can be received, may represent a reaction time of the object and a maneuver value of the object. The rear end collision probability can be utilized to control the vehicle.

A structure (ST) is part of a three-wheeled vehicle (TM) with an electric drive unit and a rechargeable battery. It comprises two lower longitudinal members (LI), right and left, curved and coupled at the front (PVS) by lower cross members supporting the battery just before a rear (PRS), and two upper longitudinal members (LS), right and left, extending throughout this rear (PRS) and coupled to the lower longitudinal members (LI) by support members (PSL1-PSL2). Each of these upper longitudinal members (LS) includes at least one upward or downward corrugation (OV) framed by two straight sub-sections (SPR) such that, in the event of a rear-end impact, the OV and SPR transmit the vertical and longitudinal components of this force, respectively, in order to distribute the impact energy vertically and longitudinally. Figure 2

The objective is to obtain a vehicle rear structure that can suppress the deformation of a skeletal member formed integrally by casting during a rear-end collision of a vehicle whose rear body is composed of such a member. [Solution] A rear vehicle structure 10 comprises a frame member 20 integrally formed by casting and constituting the rear of the vehicle body, a side member 40 extending in the longitudinal direction of the vehicle and attached to the rear of the frame member 20, and a floor member 32 provided on the upper side of the side member 40 and having an elongated hole portion 38 with the longitudinal direction of the vehicle as its longitudinal direction, wherein the floor member 32 is fastened to the side member 40 by fasteners 18 inserted through the rearward portion of the elongated hole portion 38.

This invention belongs to the field of motor vehicle driving safety and discloses a rear-end collision warning system and method for roadside vehicles to avoid pedestrians. The warning system includes a pedestrian detection millimeter-wave radar and a vehicle detection millimeter-wave radar, which are electrically connected to the signal input terminal of a controller, and LED warning lights and a voice device, which are electrically connected to the signal output terminal of the controller. The warning system can determine the collision risk between the vehicle in front and the pedestrian, as well as the rear-end collision risk between the vehicle in front and the vehicle behind, based on the parameter information obtained by the pedestrian detection millimeter-wave radar and the vehicle detection millimeter-wave radar and the information preset in the controller. It then provides graded warnings to pedestrians and drivers of vehicles behind through the roadside LED warning lights and the voice device. The warning method solves the problem of the simultaneous occurrence of pedestrian collision and rear-end collision risks, and has high safety and high reliability.

This invention provides a head and neck protection device for rear-end collisions, including a headrest seat, a first buffer assembly, and a limiting mechanism. When a rear-end collision occurs, the impacted vehicle accelerates forward, causing the head of an occupant to strike the first cushion. Upon impact, the first cushion drives a guide seat to move, compressing multiple sets of buffers. At this time, the first cushion and the multiple buffers work together to cushion the impact on the head, improving the device's buffering effect and reducing head injuries. Simultaneously, the movement of the guide seat drives the fixing assembly to release the limiting rod. The driving component then drives the limiting rod to rotate to a second state, so that the arc-shaped portion of the limiting rod faces the first cushion. When the head moves forward due to the impact reaction force, the limiting rod can contact the head, thereby limiting large-scale forward head movement, preventing neck strain, and improving the device's protective effect.

The invention relates to the technical field of automobile collision safety, in particular to an automobile rear-end collision automatic protection system and method.The automobile rear-end collision automatic protection system comprises a central processing unit, a vehicle-mounted camera, an anti-collision radar, a speed sensor and a suspension executing mechanism, the anti-collision radar, the speed sensor and the suspension executing mechanism are all in signal connection with the central processing unit, the central processing controller comprises a storage unit and an analysis unit, the storage unit stores data, the analysis unit compares the stored data with real-time numerical values, and the central processing unit sends the comparison result to the central processing unit. The problem that at the present stage, an automobile collides with a truck at too high speed per hour and enters the bottom of the truck is solved, and the survival rate of personnel in a cockpit is greatly increased.

To suppress a rear-end collision with a following vehicle during deceleration of a vehicle by deceleration stop control.SOLUTION: The driving support control device 6 of the vehicle 100 is configured to perform the driving support for controlling at least the brake actuator 52 of the vehicle 100 to stop the vehicle 100 when it is determined that the driver of the vehicle 100 is in the abnormal state in which it is difficult for the driver to continue driving the vehicle 100, and control the brake actuator 52 such that the deceleration of the vehicle 100 decreases when the inter-vehicle distance between the vehicle 100 and the following vehicle increases stepwise during the deceleration by the driving support.SELECTED DRAWING: Figure 1

This design makes it easier for the occupant's back to slide into the seatback during a rear-end collision. [Solution] The seat back fan mounting structure comprises left and right lumbar wires 36 stretched between the upper and lower parts of the seat back frame 22 of the vehicle seat, a lumbar support mechanism 42 attached to the left and right lumbar wires 36, a mounting bracket 62 positioned on the upper side of the seat relative to the lumbar support mechanism 42, a fan 66 attached to the rear side of the seat of the mounting bracket 62, and a mounting wire 80 extending from the upper end of the lumbar support mechanism 42 and having left and right mounting portions 82 to which the left and right sides of the mounting bracket 62 are attached. The left and right mounting portions 82 of the mounting wire 80 deform when a load is applied to the mounting bracket 62 from the front side of the seat.

The invention provides a cloud control method for preventing vehicle rear-end collision. The method comprises the following steps: determining a relative position relationship of each vehicle driving on a traffic lane based on driving state parameters received from each vehicle and evaluating a rear-end collision risk of each vehicle (S1); when the rear-end collision risk of the vehicle is higher than a preset risk threshold value, marking a rear-end collision risk level of the vehicle based on the evaluated rear-end collision risk (S2); and in response to a brake signal received from the first vehicle, based on the relative position relationship of each vehicle, sending a first control instruction for preventing vehicle rear-end collision to each marked vehicle running behind the first vehicle on the traffic lane where the first vehicle is located (S3). According to the method and the device, when the brake signal of the vehicle on a certain traffic lane is received, the control instruction is immediately issued to the corresponding marked vehicle, so that longer response time is gained for implementing countermeasures for each marked vehicle, and serial rear-end collision accidents among the vehicles are effectively avoided.

Systems and methods for identifying potential collisions in which another vehicle may collide with the AV. The AV detects the other vehicle and determines the other vehicle speed, acceleration, and trajectory. The AV determines that there is a risk of collision if the other vehicle continues on its current trajectory at its current speed and its current acceleration. When an AV determines there is an imminent risk that another vehicle may collide with the AV, the AV can initiate a honk to alert the other vehicle of the potential collision. In some examples, the AV can identify a potential rear end collision, and the AV can honk at the vehicle approaching it from behind. In other examples, the approaching vehicle can come from any direction. Honking is designed to be limited so that an AV does not initiate too many honks.

Method for operating a collision avoidance system (3) of a vehicle (1), wherein, depending on a collision-critical situation, an intervention strategy for reducing the severity of a detected collision imminent between the vehicle (1) and a collision object is determined, and depending on a predicted collision angle (α) between a motion vector (B1) of the vehicle (1) and another motion vector (B2) of the collision object at a predicted collision time, a distinction is made between an intervention strategy for accident reduction, an intervention strategy for the time of collision, and an intervention strategy for rear-end collision. wherein, after determining the decision strategy by means of the collision avoidance system (3), an emergency braking function or an emergency evasive maneuver function is activated depending on a determined overlap area between the vehicle (1) and the collision object at the predicted collision time, and wherein a decision to perform automatic emergency braking or automatic emergency evasive maneuvers is made depending on a predetermined threshold value with respect to the critical overlap area between the vehicle (1) and the collision object at the predicted collision time. characterized in that a critical overlap area is determined for each intervention strategy, from which point onwards, despite initiated emergency braking, the collision between the vehicle (1) and the collision object is unavoidable and that if it is determined that the threshold value with respect to the critical overlap area per intervention strategy is undershot, the emergency avoidance function of the vehicle (1) is activated.

The invention relates to an underride protection device (6) for a motor vehicle (1), comprising at least one protective element (7, 8, 9) and a fastening device (10, 17, 19) by means of which the protective element (7, 8, 9) is movably held on the motor vehicle (1) between an initial position (11) and a protective position (12), wherein in the protective position (12) in the event of a rear-end collision of the motor vehicle (1) with a truck the protective element (7) can be acted upon by the truck as an energy absorption element.

The invention discloses a self-adaptive avoidance method for coping with vehicle rear-end collision and a corresponding device. The method comprises the following steps: monitoring a rear view range through a vehicle-mounted rearview sensor, identifying a rear vehicle, calculating relative parameters of a target self-vehicle and the rear vehicle, determining that the target self-vehicle has a potential rear-end collision risk by combining vehicle information of the target self-vehicle, and when the target self-vehicle is in a static state and a vehicle exists in front, starting the vehicle-mounted rearview sensor; calculating and executing a first deflection angle of the target self-vehicle, so that the target self-vehicle generates a preset lateral deflection trend, and generates a deflection displacement towards the lateral front side when the rear vehicle collides, thereby reducing the collision to the front vehicle; and when the target self-vehicle is in a low-speed driving state and the rear-end collision of the front vehicle and the rear vehicle is inevitable, planning and executing an avoidance track of the lateral target adjacent lane so as to avoid the rear-end collision of the rear vehicle and the collision of the target adjacent lane. According to the invention, timely avoidance control can be carried out on the rear vehicle, driving accidents are reduced or avoided, and the driving safety is improved.

The utility model relates to the technical field of semitrailers, in particular to a semitrailer and a multifunctional rear protection device arranged at the tail of a frame of the semitrailer, and the multifunctional rear protection device comprises an upper crosspiece, a lower crosspiece and stand columns. The upper crosspiece extends in the transverse direction and is arranged at the tail of the frame, and the top face of the upper crosspiece is flush with the top face of the frame. The lower crosspiece extends in the transverse direction and is located below the upper crosspiece in a spaced mode. The stand columns are arranged between the upper crosspiece and the lower crosspiece, the stand columns obliquely extend downwards from the head end to the tail end, the lower crosspiece exceeds the upper crosspiece towards the tail end, and therefore an anti-collision buffering function area can be formed at the tail of the frame of the semitrailer. When a rear-end collision accident happens to the semitrailer, the multifunctional rear protection device can be in contact with a rear vehicle preferentially, and the impact force of the rear vehicle on the frame is reduced through the anti-collision buffering function area, so that the rear vehicle is prevented from directly colliding with the frame and a tank body on the frame, the rear vehicle and the tank body on the frame can be effectively protected, and the transportation safety of the semitrailer is improved.

The present invention relates to the integration of various sensors used in vehicles into a single sensor. The invention specifically relates to the development of a system using a single piece of equipment to enhance safety during reverse maneuvers through a precise rear-view alarm and parking assistance, hands-free trunk-opening (Radar Kick Sensor), blind spot detection (Blind Spot Detection BSD) to prevent accidents by detecting vehicles in the driver's blind spots, and a rear pre-crash warning system (Rear Pre-crash Warning System RPCW) that alerts the driver of possible rear-end collisions.

To provide a control device of a vehicle that can operate an automatic brake more properly.SOLUTION: A control device of a vehicle makes an automatic brake generate braking force, when an own vehicle is likely to collide with an obstacle in front of the vehicle. The control device calculates rear-ender determination value DEC indexing likelihood that a following vehicle may rear end the own vehicle during deceleration of the own vehicle by the automatic brake, and determines whether or not the following vehicle is likely to rear end the own vehicle, on the basis of a result of comparison of the rear-ender determination value DEC with a predetermined threshold Dth1 for determination, and when determining that the following vehicle is likely to rear end the own vehicle, restricts the own vehicle from being decelerated by the automatic brake. The control device obtains weight data on the following vehicle through communication that is executed between the own vehicle and the following vehicle, and variably sets the threshold Dth1 for determination depending on weight of the following vehicle shown by the weight data. (Dth11 and Dth12).SELECTED DRAWING: Figure 6

IMPROVED EMERGENCY BRAKING FOR MOTOR VEHICLES The present invention relates to a method for managing an automatic emergency braking function for a motor vehicle (2), comprising the following steps: a) real-time detection of a risk of frontal collision in the presence of an obstacle in front of the motor vehicle, by two front detection means (4, 6) of said motor vehicle; b) real-time estimation of whether automatic emergency braking could result in a risk of rear-end collision with a following vehicle, by a rear detection means (8) of the motor vehicle; c) triggering automatic emergency braking of the motor vehicle, when only one of the two front detection means identifies the obstacle in front and provided there is no risk of rear-end collision with the following vehicle in step b), or when both front detection means identify the obstacle in front. (Figure to be published with the abstract: Figure 1)

The invention relates to crash safety, which reduces the damage to the occupants through the use of sensors and equipment already present in the vehicle and is applicable in rear-end collisions with a stationary vehicle within defined limits.

A method and a device control a trailer-mounted vehicle. The method for controlling a trailer-mounted vehicle may include: determining, based on current motion information of a vehicle, a force acting due to a gradient of a trailer mounted to the vehicle and an inertial force of the trailer, determining Z-axis momentum of the vehicle caused by the trailer based on the force acting due to the gradient of the trailer; the inertial force of the trailer, and the current motion information of the vehicle; determining a compensation amount of the Z-axis momentum based on target motion information of the vehicle and the Z-axis momentum; and controlling at least one of a drive source and a brake source so that a lopsided acceleration or a lopsided deceleration is output from a corresponding wheel for implementing the compensation amount Z-axis momentum.

The application relates to the technical field of automobile safety accessories, and provides an energy-absorbing device, a rear protection device and a vehicle, wherein the energy-absorbing device comprises at least one group of main energy-absorbing pieces, the main energy-absorbing piece comprises an outer skin in a pipeline structure and having a first energy-absorbing space, a support structure surrounding the side wall of the outer skin and forming a second energy-absorbing space, and an adapter plate and a mounting plate arranged at opposite ends of the outer skin; at least one second energy-absorbing space is provided with a separation structure from the mounting plate to the adapter plate direction, the separation structure is connected to the outer skin and the support structure, and the second energy-absorbing space is separated to form a plurality of energy-absorbing sub-space areas. The application effectively reduces the impact and energy generated by the collision; when the energy-absorbing device is used at the tail of a large vehicle such as a tank truck, the damage of the front vehicle body during the rear-end collision can be reduced, the energy-absorbing device can realize energy absorption and blocking through deformation buffering, further loss reduction, and damage of the tank structure to cause leakage of dangerous chemicals is avoided.

1. The name of the design product: graphical user interface for intelligent vehicle-mounted communication terminal. 2. The use of the design product: visual display of traffic information received by wireless communication technology. 3. The design points of the design product: the interface content of the graphical user interface in the screen. 4. The picture or photo that best indicates the design points: front view. 5. No design points for rear view, left view, right view, top view, and bottom view. Omit rear view, left view, right view, top view, and bottom view. 6. The use of the graphical user interface: display of car-road cooperation scene early warning information, such as front collision warning, display of vehicle position with collision risk in front of self-driving vehicle in the interface, and support for voice broadcast to issue early warning to driver, remind driver of collision danger with vehicle in front, and take timely measures to avoid rear-end collision.

The invention belongs to the technical field of vehicle collision prevention and provides a vehicle rear collision buffering method and system based on vehicle-vehicle communication early warning and application, and the method comprises the steps that when a rear vehicle detects that the collision risk reaches the braking condition, automatic emergency braking is conducted; if it is judged that the collision still cannot be avoided, a collision early warning signal is sent to the front vehicle in the dangerous direction through the base station; after the front vehicle receives the collision early warning signal, the risk is confirmed in real time, and if it is judged that collision is inevitable, a buffer device pre-triggering instruction is generated; and the buffer device at the rear part of the front vehicle inflates a buffer bag body in the buffer device based on the buffer device pre-triggering instruction, and pops up and unfolds to the outside of the vehicle, so that the braked rear vehicle collides with the buffer bag body to absorb the residual collision energy of the rear vehicle. According to the invention, the external buffer device can be actively unfolded before rear-end collision so as to reduce collision damage.

Method for displaying a braking distance, calculated from a reaction time and the time required for braking, on a display device (1) of a vehicle (6) in the form of a horizontal bar (8, 9), wherein a first horizontal bar (8) is displayed in a virtual representation of the vehicle (6) and other road users (7) or objects in the environment in spatial relation to each other to represent a first braking distance, wherein a second horizontal bar (9) is additionally displayed, which represents a second braking distance, in which a change in the reaction time due to detected fatigue and / or distraction of the person driving the vehicle (6) is taken into account compared to the first braking distance, wherein the two horizontal bars (8, 9) are hidden when a road user (7) ahead is detected and displayed, wherein the two horizontal bars (8, 9) are always displayed despite the road user (7) ahead.if, given a specified theoretical maximum deceleration of the vehicle ahead (7), a rear-end collision could not be prevented even with the aid of brake assist systems in the event of a sudden deceleration of the vehicle ahead.

Device for mounting a vehicle battery, comprising: an underbody having a central floor (10) and a rear floor (20), and wherein one or at least two transverse elements (40, 42), longitudinal elements (50), battery mounting brackets (60) etc. are mounted on a lower section of the underbody, making it possible to selectively mount batteries (100) of different sizes on the underbody and to easily protect the mounted batteries (100) from a rear-end collision.

A vehicle rear structure is created that is capable of protecting a small battery against impact from a rear-end collision or the like. [Means of solving the problem] A vehicle rear structure (100) includes: a main battery frame (122) for holding a main battery (120); frame fixing parts (134a to 134e) fixed in the main battery frame (122) and to the rear floor (102); an auxiliary battery receptacle (126) for holding an auxiliary battery (124); and receptacle fixing parts (132a to 132c) fixed in the auxiliary battery receptacle (126) and to the rear floor (102). The frame fixing parts (134a to 134e) are fixed to the rear floor (102) in areas on the upper surfaces of the rear side elements (106, 108) or the area between them.The mounting fixing parts (132a, 132c) are fixed to the rear floor (102) in areas on the upper sides of the rear side elements (106 and 108) or the area between them and in front of a rear end of the main battery frame (122).

This invention discloses an electromagnetic collision avoidance protection system for vehicle emergency braking and its control method. The system includes electromagnetic coil actuators (1–5) integrated inside the front and rear bumpers of the vehicle, multi-source and logic trigger detection modules (8, 9, 10), a supercapacitor energy storage group (6), a main control ECU (7), and an optional vehicle network communication module (11). When the vehicle brakes suddenly and the estimated time to collision (TTC) is no more than 1.5 seconds, the system drives the electromagnetic actuators of the bumpers to generate a strong magnetic field within 10 milliseconds, forming an electromagnetic repulsion field (12) between the vehicle and the adjacent vehicle, serving as an additional non-contact collision avoidance buffer layer outside the braking system. The system supports two working modes: eddy current induction repulsion and dual-vehicle cooperative direct magnetic repulsion. It automatically adjusts the repulsion force in three levels according to the estimated time to collision and has an event data recording function. The system response time of this invention is no more than 10 milliseconds, which can provide effective physical collision avoidance protection within a very short time window in which the driver cannot react. It works in conjunction with existing safety systems such as AEB and ABS, significantly reducing the incidence and intensity of rear-end collisions, and has high engineering feasibility and application value.

A method and a device to control a trailer-mounted vehicle. The method for controlling a trailer-mounted vehicle may include: determining, based on current motion information of a vehicle, a force acting due to a gradient of a trailer mounted to the vehicle and an inertial force of the trailer, determining Z-axis momentum of the vehicle caused by the trailer based on the force acting due to the gradient of the trailer, the inertial force of the trailer, and the current motion information of the vehicle; determining a compensation amount of the Z-axis momentum based on target motion information of the vehicle and the Z-axis momentum; and controlling at least one of a drive source and a brake source so that a lopsided acceleration or a lopsided deceleration is output from a corresponding wheel for implementing the compensation amount Z-axis momentum.