12results about How to "Improve passive safety" patented technology

The application relates to the technical field of intelligent driving, and particularly discloses a vehicle blind area passing method, device and system for a person-vehicle co-driving narrow tunnel intersection, which comprises the following steps: acquiring vehicle running state information and road environment information; when it is determined that there is an intersection area in the driving direction of the vehicle, constructing a conflict area and a blind area risk area of the driving road of the vehicle according to the vehicle running state information and the road environment information; determining a comprehensive risk minimum arrival time of a virtual traffic participant to a direct conflict area; determining a time required for the vehicle to completely drive away from the direct conflict area; and determining a vehicle safe passing decision according to the comprehensive risk minimum arrival time of the virtual traffic participant to the direct conflict area and the time required for the vehicle to completely drive away from the direct conflict area. The vehicle blind area passing method for the person-vehicle co-driving narrow tunnel intersection provided by the application can accurately judge blind area risks and perform risk avoidance in the scene of the person-vehicle co-driving narrow tunnel intersection.

The invention provides an energy-absorbing anti-creeper for a railway vehicle and a vehicle head of the railway vehicle, and relates to the technical field of the energy-absorbing anti-creeper for the railway vehicle, the energy-absorbing anti-creeper for the railway vehicle comprises a mounting seat arranged at the front end of the railway vehicle; the energy-absorbing outer pipe is connected to one side of the mounting base, anti-climbing teeth are arranged at the end, away from the mounting base, of the energy-absorbing outer pipe, and the energy-absorbing outer pipe is configured to crumple towards the direction close to the mounting base in the axial direction of the energy-absorbing outer pipe under the condition that the anti-climbing teeth are collided by external force; and the buffering assembly is arranged on the mounting base, and the buffering assembly is constructed to respond to the crumple state of the energy absorption outer pipe and provide damping force opposite to the collision direction so as to absorb at least part of energy generated when the railway vehicle is subjected to external force collision.

The application discloses a manual zero-gravity skeleton with a manual leg support, which comprises a lower slide rail fixed to a vehicle body, an upper slide rail in sliding cooperation with the lower slide rail, a seat frame skeleton fixedly connected with the upper slide rail, a backrest skeleton, and an angle adjuster connecting the seat frame skeleton and the backrest skeleton. The application realizes zero-gravity adjustment through a pure mechanical structure, does not depend on a vehicle electrical system, has long service life and high stability of mechanical components, and can still adjust the seat when colliding and being powered off, thereby improving passive safety. Through linkage unlocking and pneumatic buffering, posture switching is smooth at a constant speed, and the switching is completed within 2-3 seconds, so that balance response speed and comfort are achieved. The leg support is driven by a torsional spring, is convenient and labor-saving, and supports a comprehensive leg support mechanism, the lifting power of which is provided by the torsional spring, is automatically positioned after being unlocked, reduces operation force, and realizes one-key unfolding. In cooperation with the zero-gravity posture, the application provides comprehensive support from legs to back for a passenger, and effectively disperses body pressure.

The invention provides an automobile suspension control system which comprises an information acquisition unit arranged on an automobile and used for acquiring environment information within a preset range of the automobile and state information of the automobile; the control unit is in communication connection with the information acquisition unit and is used for generating collision risk information based on a comparison result of the environment information and a preset collision condition and generating spring control information based on a comparison result of the collision risk information and the self state information; and the suspension execution unit is in communication connection with the control unit and is used for inflating air springs, close to a collision area, on the automobile according to the spring control information and deflating air springs, away from the collision area, on the automobile so as to control the automobile suspension. According to the automobile suspension control system and method and the automobile, the passive safety of the automobile can be improved.

This invention belongs to the field of high-voltage connecting aluminum busbar technology, and specifically relates to a dual-conductor, dual-insulation high-voltage connecting aluminum busbar structure for electric vehicles. It includes: two sets of flat aluminum conductors arranged parallel to each other vertically; a high-temperature resistant insulating tape wrapped around the flat aluminum conductors, allowing the two sets of flat aluminum conductors to form independent positive and negative connecting wires respectively; and an outer insulating layer wrapped around the entire outer side of the positive and negative connecting wires. The manufacturing process of the high-voltage connecting aluminum busbar structure includes the following steps: aluminum busbar extrusion, insulating tape winding, outer insulating layer extrusion, cutting, 3D bending, peeling, conductor punching, labeling, and packaging. The flattened design of this invention significantly reduces vertical space occupation, making it suitable for wiring in narrow areas such as the top and side walls of the battery pack, improving the overall vehicle space utilization. Furthermore, the production process is simplified from 17 steps to 9 steps, reducing carbon emissions and aligning with green manufacturing trends.

This utility model relates to an electric flip-up handle, including a handle base fixed inside a car door panel and having a handle groove facing the door surface; a handle body with a connecting arm and the handle base hinged together by a pivot, having a closed position retracted into the handle groove, an unlocked position rotated out of the handle groove, and an open position flipped outward relative to the unlocked position; the bottom of the handle body has an operating space that can accommodate a hand, and the operating space is exposed in the open and unlocked positions; an unlocking component includes a cam driven by an actuator, and a transmission arm extends from the handle body toward the cam; a transmission component includes a transmission shaft located on the rotation path of the connecting arm, and a cable connected to the inner lock of the car door; the handle body forms an electric opening stroke under the action of the unlocking component, and has a manual opening stroke under the action of external force; a first reset member is provided on the pivot to drive the handle body to reset.

The present invention discloses a tire retaining wall for preventing collision between vehicles and ships and a damage assessment system thereof, comprising a non-collision area and a collision area, wherein the non-collision area adopts a back pack control stabilization reinforcement method to stabilize the retaining wall structure, and the collision area is equipped with an energy absorption component to mitigate the damage caused by vehicle collision, the energy absorption component comprises a lower tire, an upper tire, a coaxial rotation mechanism and a roller transmission device, the lower tire and the upper tire are connected by a coaxial rotation mechanism, the roller transmission device is arranged between the lower tire and the upper tire, and the coaxial rotation mechanism comprises a lower blade bevel gear, a middle blade bevel gear, an upper blade bevel gear and a main shaft. The present invention can not only effectively cope with large-scale and frequent impact loads, reduce the damage caused by collision between vehicles and ships, but also monitor the energy absorption work efficiency of the tire retaining wall structure in real time, and accurately assess its damage state, so as to ensure the continuous stability and safety of the structure.

The invention relates to a commercial vehicle front wall energy absorption structure, a frame and a vehicle, the commercial vehicle front wall energy absorption structure comprises a front wall body, the front wall body comprises a front wall baffle and a front wall beam installed on the front wall baffle, a front wall reinforcing cavity is defined by the front wall beam and the front wall baffle, and a floor longitudinal beam installation position is arranged on the side, away from the front wall beam, of the front wall baffle; the part of the front wall beam protrudes and extends towards the side away from the front wall baffle, so that a first local protruding cavity is formed in the front wall reinforcing cavity. The first energy absorption mechanism is located in the first local protruding cavity, and the first energy absorption mechanism is fixed between the front enclosing beam and the floor longitudinal beam installation position. The first local protruding cavity is formed in the front wall reinforcing cavity, the first local protruding cavity can be firstly impacted when a vehicle is collided, the first energy absorption mechanism installed in the first local protruding cavity can absorb part of impact energy after the vehicle is collided, then the first energy absorption mechanism can move to make contact with the floor longitudinal beam, force conduction is achieved, and the energy absorption effect is improved. Therefore, the passive safety of the commercial vehicle is improved.

The invention relates to a crumple type hinge assembly and an automobile, the crumple type hinge assembly comprises a hinge arm and a fixing plate, the fixing plate is provided with a first end and a second end which are located on the two opposite sides, the first end is pivotally connected with the hinge arm, and the second end is used for being connected with an automobile body; a first bending part and a second bending part are arranged on the fixing plate in a spaced mode in the direction from the first end to the second end, the bending direction of the first bending part is opposite to the bending direction of the second bending part, and the rigidity of the second bending part is larger than that of the first bending part; a crumple part is arranged between the first bending part and the second bending part, and the rigidity of the first bending part is larger than that of the crumple part. According to the hinge assembly, the crumple energy-absorbing part is additionally arranged through the crumple part, the crumple part can conduct first-time energy-absorbing deformation before the first bent part, and in the deformation process of the first bent part and the second bent part, the crumple part can conduct second-time energy-absorbing deformation, so that the crumple energy-absorbing effect of the hinge assembly is further improved, and the service life of the hinge assembly is prolonged. And the passive safety performance of the automobile can be improved.

The present application relates to a remote airbag device, comprising: a gas generator comprising a first igniter, a second igniter, a first gas outlet and a second gas outlet; an airbag body comprising a main cavity, an upper cavity and a lower cavity connected to the main cavity, wherein the upper cavity is in communication with the first gas outlet of the gas generator via a first inflation channel and the lower cavity is in communication with the second gas outlet of the gas generator via a second inflation channel, so that the upper cavity and the main cavity are inflated when the first igniter is activated, and the lower cavity and the main cavity are inflated when the second igniter is activated. Furthermore, the present application also provides a method and a control device for controlling the remote airbag device, and a vehicle equipped with the remote airbag device.

This utility model discloses a rear floor longitudinal beam assembly and a vehicle, relating to the field of vehicle manufacturing technology. The rear floor longitudinal beam assembly includes: a rear floor longitudinal beam with a profile cavity formed within it; a mounting bracket installed within the profile cavity, the mounting bracket forming a receiving cavity that is open at the bottom of the rear floor longitudinal beam; and a connecting sleeve installed within the receiving cavity, which is used to detachably connect to the rear subframe via a connector. The rear floor longitudinal beam assembly of this utility model, by providing a mounting bracket within the profile cavity and installing the connecting sleeve within the mounting bracket and connecting it to the rear subframe, achieves the connection between the rear floor longitudinal beam and the rear subframe, improving the vehicle's passive safety performance. Furthermore, by installing the mounting bracket within the profile cavity, the mounting bracket can form a reinforcing structure within the profile cavity, enhancing the structural strength of the rear floor longitudinal beam and improving its operational reliability.

This invention relates to the field of automotive safety component technology, and discloses an automotive crash beam based on a continuous fiber-printed negative Poisson's ratio structure. The beam comprises a core layer with a negative Poisson's ratio effect integrally formed from continuous carbon fibers and thermosetting resin. The manufacturing method utilizes continuous fiber additive manufacturing equipment to simultaneously extrude continuous carbon fibers and a resin matrix, perform in-situ impregnation, and build up layers to form a green crash beam with the core layer, which is then cured. This invention combines the tensile energy absorption mechanism of the negative Poisson's ratio structure with the high load-bearing capacity of continuous fibers, and utilizes integrated additive manufacturing technology to eliminate weak interfaces in traditional assembly. This effectively solves the technical problems of balancing energy absorption efficiency and lightweight design, as well as stress concentration in the structure. The resulting crash beam exhibits higher specific energy absorption, excellent structural integrity, and a lightweight level.