287results about How to "Improve crash safety" patented technology

The invention provides a high-strength hot-dip zinc plated steel sheet which exhibits high TS-El balance, excellent stretch frangeability, excellent workability due to low YR, and excellent impact characteristics, and a process for manufacturing the same. A high-strength hot-dip zinc plated steel sheet excellent in workability and impact characteristics, having a composition which contains by mass C: 0.05 to 0.3%, Si: 0.01 to 2.5%, Mn: 0.5 to 3.5%, P: 0.003 to 0.100%, S: 0.02% or below, Al: 0.010 to 1.5%, and N: 0.007% or below and further contains at least one element selected from among Ti, Nb and V in a total amount of 0.01 to 0.2% with the balance being Fe and unavoidable impurities and a microstructure which comprises, in terms of area fraction, 20 to 87% of ferrite, 3 to 10% (in total) of martensite and retained austenite, and 10 to 60% of tempered martensite and in which the average grain diameter of the second phase consisting of the martensite, retained austenite, and tempered martensite is 3[mu]m or below.

The invention discloses a seat cushion adjusting mechanism of an integrated automobile safety seat for children, which comprises a seat cushion height adjusting mechanism and a seat cushion length adjusting mechanism, wherein the seat cushion height adjusting mechanism is installed below the middle seat cushion of the back-row seats, and the middle seat cushion of the back-row seats can be lifted by a driving device and a link mechanism, so that the seat for adults can be changed into a heightened seat for children; and the seat cushion length adjusting mechanism is connected with multiple sections of additional seat cushions which can be connected with or separated from each other at the front side of the seat cushion of the seat, so that the length of the seat cushion can be adjusted according to the body sizes of the children. The invention can realize the stepless adjustment of the seat cushion height based on the height of the children and the multistep adjustment of the seat cushion length, thereby protecting the children from being hurt in the process of automobile collision when being used by matching with the traditional three-point safety belt for adults. Besides, the invention can be adjusted to adapt to adults for use, has the advantages of simple structure, low cost and convenient use, and can realize the intelligent positioning of the children.

The invention discloses a vehicle steer-by-wire device with a redundant mechanism, and a control method of the vehicle steer-by-wire device. The vehicle steer-by-wire device comprises a steering manipulation mechanism, a steering execution mechanism, a first clutch device and a controller; the first clutch device is arranged at the rear end of a steering coil column, and used for connecting or disconnecting the steering manipulation mechanism and the steering execution mechanism; the controller controls the steering manipulation mechanism and the steering execution mechanism; and the steeringexecution mechanism comprises a main motor, a rack assisted steering transmission mechanism connected with the main motor, an auxiliary motor, and a pinion electric assistance transmission mechanism connected with the auxiliary motor. Through mechanical disconnecting of the steering execution mechanism and the steering manipulation mechanism, and redundant design of the steering execution mechanism, the reliability of a steering system for high-grade automatic driving is improved, and high-safety design of the steer-by-wire system is achieved.

The invention discloses a railway vehicle head structure. The railway vehicle head structure comprises a vehicle body main structure, a vehicle head anti-collision structure and an anti-creeper. A vehicle head is divided into a safety zone of which the longitudinal load strength is decreased progressively in a gradient mode, a secondary deformation zone and a main deformation zone according to the longitudinal direction of a railway vehicle. The safety zone is the vehicle body main structure and comprises a passenger room zone and a driver seat zone. The secondary deformation zone is a zone from a cab front door to an anti-creeper installation plate and comprises the vehicle head anti-collision structure and an anti-creeper installation structure. The main deformation zone comprises a cab floor located in front of the anti-creeper installation plate and the anti-creeper. A first-stage stopping structure is arranged between the secondary deformation zone and the main deformation zone. A second-stage stopping structure is arranged between the safety zone and the secondary deformation zone. According to the railway vehicle head structure, a vehicle body deforms and absorbs energy in a controllable and orderly mode, and the good safety performance is obtained.

A system for sensing an impending collision and controlling a safety device such as an airbag in response to the detection of an impending collision target. Deployment characteristics of the safety device are adjusted based on sensor output. One implementation of the system includes a radar sensor and a vision sensor carried by the vehicle. The radar sensor provides a radar output related to the range and relative velocity of the target. The vision sensor provides a vision output related to the bearing and bearing rate of the target. An electronic control module receives the radar output and the vision output and generates control signals for control safety device and adjusting deployment characteristics.

The invention discloses an ultrahigh-strength steel plate local quenching and hardening forming die. The die comprises an upper die base, a female die fixed on the upper die base, a lower die base and a male die fixed on the lower die base, and the male die and the female die are of splicing type structures, composed of heating inserts and cooling inserts and used for heating and cooling different regions of the die. A plurality of electric heating tubes are embedded into the heating inserts, and cooling water holes are arranged inside the cooling inserts and connected with a cooling water circulating system. Portioned cooling and pressure maintaining quenching of paths after ultrahigh-strength steel plate hot forming can be achieved, and further parts with customized mechanical properties are obtained. The forming die is simple and reliable in structure, deformation of the parts is small as the whole process is completed with the die closed, and the parts are excellent in size precision.

The invention discloses a frontal and off-set collision energy absorption device and an automobile with the same. The energy absorption device is arranged at front end of an automobile frame, and comprises two longitudinal beams of energy absorption, one crossbeam of energy absorption, two supporting crossbeams, and two longitudinal beams of auxiliary energy absorption, wherein, a plurality of energy absorption bars and pilot holes are respectively arranged on the two longitudinal beams of energy absorption. The frontal and off-set collision energy absorption device can effectively induce sequential metal plastic deformation of a bearing carrier, which efficiently absorbs more than 80% of collision energy in a high-efficiency frontal collision energy absorption device; and during offset collision, longitudinal beams of unilateral collision energy absorption and longitudinal beams of auxiliary energy absorption efficiently absorb more than 70% of the collision energy, and transfer 20% of the collision energy to a non-collision by crossbeams, thus effectively reducing acceleration of an car body and passengers within a certain living space for the passengers, and reducing personal injury of the passengers caused by the frontal and off-set collision of the automobile.

A floor structure of a motor vehicle is provided that includes, but is not limited to a mounting for a starter battery in a cross member adjoining wheel arches for rear wheels. The cross member comprises two stiffening webs and is designed tub-shaped between the stiffening webs. Because of this, the starter battery is reliably protected against a crash.

This invention relates to lozenge automobile, whose chassis comprises main rack and level swing, wherein, the main rack comprises left and right carlings and several beams with motor located behind; the motor main axis drives the two driving wheels through gimbal, transmission shaft, differential gear and left and right axis; the left and right wheels are imbedded with nail gear connected to the conductive ring connected to the brush panel; the brush contacts the brush panel and is connected to the electric control carbine through wires and the carbine is connected to battery set and motor through wires; the car has one wheel in front and back for turning by connection.

The invention discloses a metal / composite material integrated bumper device, which belongs to the technical field of automobile lightweight and collision safety. The bumper device comprises a bumper beam metal outer panel, a bumper beam composite material inner panel, an energy-absorbing box, a composite material inner panel reinforcing rib and a composite material lock buckle. Based on the design concept of lightweight and modularized automobiles, the invention comprehensively utilizes the characteristics of strong metal bearing capacity, high specific strength of composite materials, good impact energy absorption and complex geometry, and adopts advanced direct injection molding and adhesion integration Made by molding process. The integrally formed automobile bumper device has high integration, shortens the assembly process, has good economic benefits, and is easy to popularize. The use of composite materials reduces the weight of the bumper, realizes lightweight, reduces vehicle fuel consumption, reduces exhaust emissions, designs and manufactures a rib structure with good load-bearing capacity, and improves the collision safety of the vehicle bumper.

The invention discloses a vehicle body of an electric vehicle, and relates to the technical field of automobile manufacturing. The vehicle body of the electric vehicle comprises a left front longitudinal beam, a right front longitudinal beam and a floor. A floor upper portion left reinforcing longitudinal beam and a floor upper portion right reinforcing longitudinal beam are arranged on the floor. The positions of front seats on the floor protrude upwards to reserve battery pack mounting space. The floor upper portion left reinforcing longitudinal beam and the floor upper portion right reinforcing longitudinal beam turn in the protruding positions and extend to a front seat left rear cross beam and a front seat right rear cross beam. A floor lower portion left reinforcing longitudinal beam and a floor lower portion right reinforcing longitudinal beam are arranged in the positions, corresponding to the floor upper portion left reinforcing longitudinal beam and the floor upper portion right reinforcing longitudinal beam, of the bottom face of the floor correspondingly and are connected with the left front longitudinal beam and the right front longitudinal beam correspondingly. A transverse reinforcing beam is arranged between the floor lower portion left reinforcing longitudinal beam and the floor lower portion right reinforcing longitudinal beam. According to the vehicle body of the electric vehicle, the wide and regular mounting space is provided for a battery pack of the electric vehicle, vehicle body deformation in collision of the electric vehicle is effectively reduced, and the safety of passengers and the battery pack is protected.

A vehicle body side structure that has a sub pillar (2) branched downward from a front pillar (1) and in which corner glass (4) is placed in front of the sub pillar (2). In the structure, the branch portion, from which the sub pillar (2) branches and in which the cross-sectional shape of the front pillar (1) varies, is prevented from becoming a weak point in strength to thereby increase the strength of the front pillar (1) against axial force. To achieve the above, a step-like wall section (23) having an installation surface (24) where the peripheral edge of the corner glass (4) is fixed is provided at that portion of an outer panel (11) that is in front of the sub pillar (2) and is near a joint section (17) on the corner glass (4) side. Further, two ridge sections (34, 35) extending in the longitudinal direction are formed on a stiffener (12) such that either of the two ridge sections (34, 35) is located on the inner side of the step-like wall section (23) of the outer panel (11). Thetwo ridge sections (34, 35), formed on the stiffener (12) at portions in front of the sub pillar (2), are continuous to two ridge sections (39, 40) formed at portions behind the sub pillar (2).

A high strength cold rolled steel sheet includes a chemical composition containing, by mass %, C: 0.010% or more and 0.060% or less, Si: more than 0.5% and 1.5% or less, Mn: 1.0% or more and 3.0% or less, P: 0.005% or more and 0.100% or less, S: 0.010% or less, sol.Al: 0.005% or more and 0.500% or less, N: 0.0100% or less, Nb: 0.010% or more and 0.100% or less, Ti: 0.015% or more and 0.150% or less and the balance comprising Fe and inevitable impurities. The microstructure includes, in area fraction, 70% or more of a ferrite phase and 3% or more of a martensite phase. The tensile strength is 440 MPa or more and an average r value is 1.20 or more.

This invention relates to lozenge automobile, whose chassis comprises main rack and level swing, wherein, the main rack comprises left and right carlings and several beams with motor located behind; the motor main axis drives the two driving wheels through gimbal, transmission shaft, differential gear and left and right axis; the left and right wheels are imbedded with nail gear connected to the conductive ring connected to the brush panel; the brush contacts the brush panel and is connected to the electric control carbine through wires and the carbine is connected to battery set and motor through wires; the car has one wheel in front and back for turning by connection.

An automotive structural component needs high strength to ensure collision safety, and meanwhile, the specific part needs relatively low strength and relatively high toughness to realize high comprehensive performance so as to achieve energy absorption effect and realize good comprehensive protection function. The conventional structural component cannot meet the actual using requirement due to consistent integral performance, or has different implementing performance, complex process and hidden performance worries at the combined position due to an assembled mode. According to different local performance requirements of parts, the invention designs a hot stamping die comprising modules of different cooling efficiency, wherein the die is used for manufacturing body safety protection structural components with high performance, light weight and low cost. Only one specific die insert of the hot stamping die comprises a cooling duct, or the positions, the size and the arrangement of cooling ducts of sub blocks are distinguished and designed according to the performance requirements; and the produced hot formed structural component such as a column B reinforcing plate lightens the integral weight of the original part, promotes the lateral collision deformation resistance of an automobile, and meanwhile can well absorb collision energy.

The invention provides a variable-thickness automobile front bumper and a manufacturing method thereof. The automobile front bumper comprises a front bumper body which is of a thin-wall structure. The front bumper body sequentially comprises a left body section, a left transition section, a right body section, a right transition section and a right body section. A left energy absorption box and a right energy absorption box are arranged on the inner side faces of the left body section and the right body section of the front bumper body respectively, so that the front bumper body is connected with an automobile front longitudinal beam. The left body section and the right body section are of a uniform-thickness structure. The left transition section and the right transition section are of a continuous variable-thickness structure and become thinner gradually from the two ends to the middle body section. The middle body section is of a uniform-thickness structure and is the thinnest portion of the whole front bumper body. According to the variable-thickness automobile front bumper, by means of the design of parts of different thicknesses, the requirement for collision safety of the automobile front bumper is met, and the design of light parts can be achieved at the same time.

Disclosed is an automotive rear vehicle body structure which comprises a rear subframe (21) provided with right and left side member segments (22). Each of the right and left side member segments (22) has a rear region provided with a rear fixing section (26) attached to a respective one of right and left rear side frames (7), and a front region provided with a front fixing section (25) attached to a vehicle-body cross member (10). A position of the front fixing section (25) of each of the side member segments (22) is set to be located inward of the respective one of the rear side frames (7) in a vehicle width direction, and each of the side member segments (22) is provided with an arm support section (28) configured to pivotally support a suspension arm (32), at a position rearward of the front fixing section (25).

The invention discloses a correction method for a conceptual model of a vehicle body structure and an application method thereof. The correction method comprises the following steps of: the first step: establishing the conceptual model A of a vehicle body framework structure; the second step: getting the conceptual model A' of a vehicle body cyclic structure, which has equivalent performances with the conceptual model A of the vehicle body framework structure; the third step: getting the conceptual model B of the vehicle body cyclic structure, which corrects parameters of all joint simplified models; and the fourth step: getting the conceptual model C of the vehicle body cyclic structure, which corrects all load transfer path models. According to the correction method disclosed by the invention, by constructing the conceptual model of the vehicle body cyclic structure, the torsional rigidity of the cyclic structure is adopted as an overall performance evaluation index, and the method of getting the parameters of the joint simplified models is also adopted, so that the insufficiencies of the existing conceptual model can be effectively avoided, and the correction method can produce a significant impact on the vehicle body conceptual design method and the flow process and has important guide significance for vehicle body structure design.

The invention discloses a stacked battery pack based on a honeycomb structure which is different from a traditional battery pack stacking mode. The battery pack adopts the design of an integrated honeycomb shell, battery electric cores are placed inside honeycomb holes, and the battery electric cores can be connected in series or in parallel. The hole shape, hole diameter, wall thickness, length,and height of the honeycomb structure in the integrated honeycomb shell are adjusted to adapt the electric cores of cylindrical batteries, square batteries and button batteries, according to the actual needs, and a part of honeycomb holes are selected for use as cooling channels or placement of a phase change material so as to improve heat dissipation and insulation effects of the battery pack. The integrated honeycomb shell of the battery pack has the ability of cushioning, damping, vibration, resisting shock, and protecting battery inner cores, and has good collision safety.

The invention discloses an automobile front auxiliary frame installing structure. A front auxiliary frame is installed on an automobile body longitudinal girder through the installing structure, and compared with the prior art, the installing structure can automatically fall off to separate the front auxiliary frame and the automobile body longitudinal girder when an automobile collides. Influence on the deformation mode of the automobile body longitudinal girder is reduced, the acceleration peak value of the automobile body is reduced, intrusion amount of a front wall plate is reduced, keeping of passenger compartment integrity is facilitated, and collision safety performance is improved. Moreover, the installing structure is simple in structure, obvious in effect and low in cost, production is easy to achieve, and part generalization is convenient to achieve.

The invention discloses an automobile collision protection device. The automobile collision protection device comprises a base, a support plate, a telescoping mechanism and an energy absorption panel, wherein the base is fixedly arranged on a vehicle body; the support plate is connected with the base by the telescoping mechanism; the telescoping mechanism comprises two sliding plates, two first connecting rods and driving mechanisms; the two sliding plates are respectively arranged on the left side and the right side of a back plate surface of the support plate in a left-right sliding manner; the back ends of the two first connecting rods are respectively hinged to the left side and the right side of the base, and the front ends of the two first connecting rods are respectively hinged to the two sliding plates; the driving mechanisms are used for driving the two first connecting rods to swing so as to control the support plate to move back and forth; the energy absorption panel is connected with the front plate surface of the support plate by a plurality of energy absorption springs. According to the automobile collision protection device, the support plate and the energy absorption panel can actively extend forwards by virtue of the telescopic mechanism to expand a collision buffering area of an automobile, and collision energy can be absorbed by shrinkage of the whole device, so that the collision safety of the automobile is improved.

A structural part for a motor vehicle includes an inner component having a generally rectangular cross section and configured in the form of a multichamber hollow section made of light metal, and an outer component having a generally rectangular cross section. The inner and outer components are movable in a telescoping manner relative to one another between an idle state and an activated state. A first locking mechanism is provided to lock the idle state and a second locking mechanism is provided to lock the activated state. The movement of the inner and outer components from the idle state to the activated state is hereby realized by an actuator.

The invention relates to a square tapered aluminum alloy automobile front carling based on an embedded carbon fiber. The square tapered aluminum alloy automobile front carling based on the embedded carbon fiber is characterized in that the section of the front carling is composed of two parts, namely the aluminum alloy outer wall and a carbon fiber reinforced plate. An aluminum alloy outer plate is little in elasticity modulus and good in deformation mode and the carbon fiber reinforced plate has the strong collision energy absorption capability. By means of the two new materials are combined and a square tapered structure, the contradiction among the high energy-absorption performance, the low-collision-acceleration peak value and the good crushing mode can be coordinated in a satisfying manner in the collision safety design process. The square tapered aluminum alloy automobile front carling based on the embedded carbon fiber has great significance in improvement of the collision performance and weight reduction.

The present invention relates to a fingerprint chip electrical performance testing device. The fingerprint chip electrical performance testing device includes a testing system, a feeding system, and amaterial collection system; the feeding system includes a tray separating and conveying device, a plurality of tray positioning devices, a fingerprint chip number identification device, and a material collection system, wherein the tray separating and conveying device is provided with two tray delivering conveyor belts, the plurality of tray positioning devices are arranged between the two tray delivering conveyor belts, the fingerprint chip number identification device is provided with a machine vision system located above the first tray positioning device, the material collection system isprovided with an adsorption mechanism located above the last tray positioning device; and the test system includes two test devices and material taking devices, wherein the two test devices are arranged symmetrically outside one side of the tray separating and conveying device, and the material taking devices are located at the test devices and adsorption devices located above the other tray positioning devices. The fingerprint chip electrical performance testing device can automatically feed, transfer and convey fingerprint chips and has high test efficiency.