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384 results about "Head-on collision" patented technology

A head-on collision is a traffic collision where the front ends of two vehicles such as cars, trains, ships or planes hit each other when traveling in opposite directions, as opposed to a side collision or rear-end collision.

Air generator shock absorption device on steering wheel

The invention provides an air generator shock absorption device on a steering wheel and belongs to the technical field of automobile accessories. The air generator shock absorption device comprises a support wheel and a buffer assembly. An air generator is connected onto the buffer assembly made of a rubber material. When head-on collision of a vehicle occurs, the buffer assembly made of the rubber material in an air bag restraint module can effectively buffer recoil force produced by the detonated air generator, namely the contact time of an air bag and a person is prolonged, the buffer time of a safety belt is prolonged, inertia impact of the person is reduced to some extent, impact force between the person and the air bag is reduced, and injury level is reduced. In addition, due to the fact that the air generator is connected onto an elastic connecting column of the buffer assembly, the air generator shock absorption device has certain shaking capacity. When jolt shake produced by the whole vehicle in running is transmitted to the steering wheel, the steering wheel can transmit agglomerated energy to the air generator through the buffer assembly, the air generator and the elastic connecting column shake, the shaking degree of the steering wheel is reduced, noise is reduced, and driving comfort is improved.
Owner:建新赵氏科技股份有限公司

Test method and device for calibrating lateral coming vehicle by head-on collision prevention system

The invention discloses a test device for calibrating a lateral coming vehicle by a head-on collision prevention system. The head-on collision prevention system comprises a control system, a radar arranged on a test vehicle and a vehicle passive safety control device; the test device comprises a simulated object positioned at the periphery of the test vehicle; the control system is provided with at least four control stages, namely a normal stage, a tracking stage, a prewarning stage and a collision buffering stage, and at least four corresponding instruction signals; the simulated object is a lateral coming vehicle simulation plate; the size of the simulation plate is the same as that of an actual vehicle; a vehicle lateral image is arranged on the surface of the simulation plate; and the simulation plate does motion along a direction vertical to a running direction of the test vehicle right in front of the test vehicle under the driving of a driving device. Therefore, the simulation plate can be effectively used for simulating the front lateral coming vehicle, so that traffic accidents easily caused by calibration by using a real vehicle and a real person are avoided, and the safety of testers is guaranteed effectively.
Owner:ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1

Automobile head-on collision dummy lumbar vertebra calibrator

An automobile head-on collision dummy lumbar vertebra calibrator comprises a hydraulic cylinder, a tension sensor, a rigid connector, a connecting assembly and a fixed base, wherein the hydraulic cylinder is connected with the tension sensor, the tension sensor is connected with the connecting assembly slidably by the rigid joint, the bottom of the connecting assembly is fixed with the dummy lumbar vertebra, and the bottom end of the dummy lumbar vertebra is fixedly connected with the fixed base. The automobile head-on collision dummy lumbar vertebra calibrator is simple in structure, low in manufacturing cost and stable in motion, the hydraulic cylinder is used as power output as compared with swing arm collision in lateral-collision dummy lumbar vertebra calibration as power, test accuracy is high, and dynamic performance of the dummy lumbar vertebra can be detected so as to judge whether the dummy can be used for test again or not after several collision tests, so that response accuracy of the dummy in the collision test is guaranteed, and test data is more persuasive. The automobile head-on collision dummy lumbar vertebra calibrator is wide in application range, applicable to calibrating the lumbar vertebra of the Hybrid III 50th male head-on collision dummy and the Hybrid III 5th female head-on collision dummy.
Owner:湖南赛孚汽车科技股份有限公司

Electromagnetic active anticollision device for automobile

The invention discloses an electromagnetic active anticollision device for an automobile. The electromagnetic active anticollision device comprises a rigid inner protective frame, an energy absorption mechanism, a crush resisting and damping mechanism, an electromagnetic field safety shielding cover and a rigid outer protective frame. The energy absorption mechanism is a push-pull mechanism mainly composed of a plurality of electromagnets and a telescopic connecting piece, the crush resisting and damping mechanism is mainly composed of electromagnets, the energy absorption mechanism and the crush resisting and damping mechanism are connected to the rigid inner protective frame and use the rigid inner protective frame as a supporting point, and the shielding cover and the rigid outer protective frame cover the energy absorption mechanism and the crush resisting and damping mechanism in sequence so as to provide the electromagnetic field shielding function and the rigid anticollision function respectively. The strong and effective energy absorption and crush resisting and damping structure is constructed through a special electromagnet pole layout mainly based on the principle of homopolar repulsion and heteropole attraction of the electromagnets, strong impact force generated by the collision of the automobile is offset to the maximum limit, head-on collisions and rear-end accidents of the automobile are prevented or reduced, and the degree of secondary damage is effectively lowered.
Owner:邱洪武

CAE (Computer Aided Engineering)-based method for measuring vehicle body deformation by simulating head-on collision

The invention relates to a CAE (Computer Aided Engineering)-based method for measuring vehicle body deformation by simulating head-on collision. The method comprises the following steps of: establishing a model based on a vehicle body structure; selecting one point from an non-deformation area in a longitudinal beam of a floor at the rear part of a vehicle body as a foundation, and creating a three-direction rigid beam unit; respectively selecting a plurality of measuring target points from a front wall baffle, a column A, an IP beam and a steering tubular column; arranging a three-direction spring unit between each measuring target point and the original point of a beam unit; loading collision conditions according to test requirements to implement the collision simulation; and outputting the deformation in each direction of the three-direction spring unit to each measuring target point of the model subjected to the collision. According to the CAE-based method, the deformations of the front wall baffle, the column A, the IP beam and the steering tubular column which are subjected to the collision are simulated through a computer so as to judge whether the vehicle body structure meets the design requirements, and the test cost in a vehicle design process can be reduced.
Owner:HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2

Passenger vehicle front floor framework structure

The invention discloses a passenger vehicle front floor framework structure. A left longitudinal beam connection plate cover plate is arranged above a front floor and corresponds to a left longitudinal beam connection plate, the left end of the left longitudinal beam connection plate cover plate is connected with a front floor left inner longitudinal beam cover plate corresponding to a left inner longitudinal beam, and the middle of the left longitudinal beam connection plate cover plate is connected with a second left inner longitudinal beam cover plate corresponding to a second left inner longitudinal beam. A right longitudinal beam connection plate cover plate is arranged above the front floor and corresponds to a right longitudinal beam connection plate, the right end of the right longitudinal beam connection plate cover plate is connected with a front floor right inner longitudinal beam cover plate corresponding to a right inner longitudinal beam, and the middle of the right longitudinal beam connection plate cover plate is connected with a second right inner longitudinal beam cover plate corresponding to a second right inner longitudinal beam. Reinforcing parts are ingeniously added above the floor, the longitudinal rigidity of a front floor framework beam and the strength of a front bracket rear installation point are improved, the deformation amount of the inner longitudinal beams in the collision process and the backward movement amount of the front bracket rear installation point are decreased, a living space of passengers is further enlarged, and the head-on collision performance of a passenger vehicle is improved.
Owner:DONGFENG MOTOR CORP HUBEI

Method for designing front longitudinal girder

ActiveCN103770840AConducive to follow-up designSimple designUnderstructuresHead-on collisionEnergy absorption
The invention provides a method for designing a front longitudinal girder. The method includes the steps of (1) obtaining an acceleration-time curve and a conquassation distance-time curve during head-on collision on a benchmarking vehicle, (2) enabling the length from the most front end of the front longitudinal girder of a target vehicle to the front end of a power assembly to be X, and obtaining a first moment t0 when conquassation begins to occur and a corresponding second moment t1 when the conquassation distance is X in cooperation with the conquassation distance-time curve, (3) obtaining a constant equivalent acceleration a of the benchmarking vehicle within the t0-t1 time period, (4) obtaining the testing mass m of the target vehicle, and obtaining equivalent balance collision force F borne by the target vehicle within the t0-t1 time period, (5) obtaining equivalent collision force borne by the front longitudinal girder within the t0-t1 time period according to the specific gravity of collision force borne by the energy absorption section, from the most front end of the front longitudinal girder to the front end of the power assembly, of the front longitudinal girder, and (6) obtaining the length, the width, the wall thickness and the material parameters of the cross section of the front longitudinal girder according to the equivalent collision force borne by the front longitudinal girder within the t0-t1 time period. The method for designing the front longitudinal girder is high in efficiency and low in cost.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD
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