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84results about How to "Avoid secondary collision" patented technology
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Compound vibration-isolating and buffering device
InactiveCN102410329AWide frequency domain of vibration isolationImprove vibration isolation efficiencyHigh internal friction springsResonanceEngineering
The invention discloses a compound vibration-isolating and buffering device. By the compound vibration-isolating and buffering device, when an installation space is limited, electronic equipment can work reliably and durably under the conditions of severe vibration and impact. The compound vibration-isolating and buffering device is compounded by a steel rope vibration absorber and a rubber vibration absorber, and is provided with a lower base and an upper pedestal; the lower base is used for bearing the electronic equipment; the upper pedestal encircles a U-shaped border which is arranged on the side of a lower bottom surface and higher than the bottom surface of the lower base; and the upper pedestal which is higher than the bottom surface is arranged on three sides of the lower base surface. The steel rope vibration absorber is symmetrically and horizontally arranged between the lower base and the upper pedestal and is fixed by a bolt to realize the first-order vibration-isolating function in X, Y and Z directions; and the rubber vibration absorber is vertically arranged between the lower base and the upper pedestal and is fixed by a bolt, and the rubber vibration absorber realizes the second-order vibration-isolating, buffering and limiting functions when the device resonates and is impacted. The intrinsic vibration-isolating and buffering conflict of the conventional vibration isolator is solved to a certain extent, and the resonance peak can be reduced quickly.
Owner:中国兵器工业第二〇六研究所
Vehicular impact absorbing apparatus having cushion pins
InactiveCN1653232AEffective absorptionPrevent springbackRefuge islandsRoadway safety arrangementsEngineeringCushion
A vehicular impact absorbing apparatus is disclosed. The apparatus includes a pair of tubular guide rails having a guide slit longitudinally formed at the upper part of each guide rail fixed to the ground. A plurality of sliders are movably mounted in the guide rail at a predetermined intervals, the upper part of each slider is laid on the upper part of the guide rail through the guide slit. A plurality of cushion units are mounted on the upper part of each slider. Each cushion unit is elastically deformed by vehicular impacts with retracting alongside the guide rail. A group of cushion pins are mounted across the guide rails at predetermined intervals between the sliders. The cushion pins also absorb the kinetic energy of an impact by being broken in turn by the slider that is retracting rearward. A stopper is installed around the rear end of the guide rail for stopping the retracting cushion units. A side fence is retractably mounted alongside the cushion units; the one end of the side fence is fixed to the stopper and the other to the front cushion unit. A successive cushion and deceleration of the impacts is possible in this arrangement.
Owner:姜胜求
Vehicle safety system and method for preventing chain accidents after collision on highway
ActiveCN110920552AChain accident reductionReduce lossesPedestrian/occupant safety arrangementAnti-collision systemsIn vehicleNetwork connection
The invention discloses a vehicle safety system and method for preventing a chain accident from happening after collision on a highway. The system is composed of a visual perception module, a vehicle-mounted computing module, an external communication system, a vehicle-mounted communication module, a network connection communication module, a vehicle control module and a trigger signal generationmodule. The method specifically comprises the following steps: when detecting that a vehicle is collided, triggering a vehicle safety system to work enabling a visual perception module to collect sensor information, judge whether passengers in the vehicle need rescue or not and whether the driving environment is safe or not; taking corresponding measures and re-planning a driving path and an action; checking the device state of the vehicle, judging whether the vehicle meets the self-starting condition or not, transmitting the moving track and the state information of the vehicle to a rear coming vehicle through the network connection communication module, taking corresponding measures according to information feedback of the rear coming vehicle so that vehicle chain accidents are effectively avoided, and the problem that in the prior art, functions of a chain collision prevention system are not perfect is solved.
Owner:JILIN UNIV
Counterguard system for small-bias head-on collision of vehicles
ActiveCN104458186AAvoid secondary collisionLow input costVehicle testingShock testingHead-on collisionRigid wall
The invention discloses a counterguard system for small-bias head-on collision of vehicles. The counterguard system comprises a small-bias counterguard (1), two installing supports (A) parallel to each other are welded to the bottom of the small-bias counterguard, each installing support is correspondingly provided with a row of ground anchors (4) laid on a firm foundation, a cylinder (5) matched with an inner cavity of the ground anchor is placed in each ground anchor, each ground anchor corresponds to one first fastening screw (6), and the first fastening screws sequentially penetrate through the installing supports and the cylinders to be locked with the ground anchors from top to bottom. An existing automobile test site is ingeniously improved, the investment cost is low, the project amount is small, the installing mode of horizontally installing the small-bias counterguard on the ground anchors laid on the firm foundation is creatively changed from the installing mode of vertically installing the small-bias counterguard on a fixed rigid wall, secondary collision after vehicle bodies collide is avoided, and the bottleneck that at present, a small-bias collision test can not be performed due to limitation of sites and equipment in China is broken through.
Owner:CHINA AUTOMOTIVE ENG RES INST
Method, apparatus and system for determining a trajectory of a robot's end effector
ActiveCN110625610AImprove protectionAvoid secondary collisionProgramme controlProgramme-controlled manipulatorSimulationSubject matter
The subject matter relates to a method for determining a trajectory of a robot's end effector, comprising: obtaining a collision force of a robot's end effector caused by a collision of the end effector when the collision is detected; and determining a second trajectory of the end effector based on the obtained collision force of the end effector and a recorded first trajectory of the end effector, wherein the trajectory has trajectory information including a position vector, a velocity vector, and an acceleration vector of each trajectory point, and wherein the first trajectory is a trajectory before the collision, and the second trajectory is a trajectory after the collision. With the method, an efficient protection for the robot and its working environment at the moment of collision maybe achieved.
Owner:SIEMENS AG
Automobile alarming method and device and automobile safety airbag
InactiveCN105835815AAdd external alarm functionRemove road obstacles in timePedestrian/occupant safety arrangementElectric/fluid circuitEmergency rescueTraffic accident
The embodiment of the invention provides an automobile alarming method and device and an automobile safety airbag. The automobile alarming method comprises the steps that a sensor triggers a vehicle accident signal according to a detected vehicle accident; the accident signal is sent to an alarm through a CAN bus; the alarm receives the vehicle accident signal through an input interface of the CAN bus, an alarm signal is generated according to the vehicle accident signal, and the alarm signal is sent through a vehicle-carried communication protocol output interface; and vehicle-carried communication protocols include the V2X communication protocols so that a vehicle emergency rescue server can provide emergency rescue as soon as possible according to the alarm signal, road barriers caused by a traffic accident vehicle are eliminated in time, and the road traffic is recovered as soon as possible, or other vehicles which are located around the traffic accident vehicle and carry with the vehicle-carried communication protocols are made to keep away from the traffic accident vehicle as soon as possible, and secondary collision of the vehicles is avoided.
Owner:LEAUTO INTELLIGENT TECH (BEIJING) CO LTD
Human head impacting test device
InactiveCN103196647AAvoid secondary collisionGuaranteed repeatabilityShock testingImpact testEnergy absorption
A human head impacting test device comprises a support, an impacting mechanism, a lifting mechanism, a sample hanging basket, a head hanging bag and the like. The lifting mechanism is installed at the top of the support, and the lifting mechanism is connected with an electromagnet through a lifting steel rope; a sliding block is embedded in an upper beam of the support and is connected with the sample lifting basket suspended inside the support; a travel switch and a speedometer are installed on a front beam on one side of the support; a buffering energy-absorption device is installed on a support base; and the head lifting bag is suspended on the upper beam of the support, and the impacting mechanism makes two guide posts vertically installed on the support as a guide mechanism, and vertical impacting is achieved. The human head impacting test device is simple and reasonable in structure and convenient to operate; an impacting object collides with the buffering energy-absorption device after impacting the head, the buffering energy-absorption device can automatically rise in a facilitating mode, therefore secondary collision is avoided, and data collection is reliable; and real load characteristics of the human body during impacting are simulated through a spring hanging bracket and the lifting bag, so that test results are more valuable.
Owner:HUNAN UNIV
Braking takeover system and method
InactiveCN107719346ATimely brakingBrake takes over in timePedestrian/occupant safety arrangementAutomatic initiationsVehicle driving
The invention provides a braking takeover system and method, and relates to the field of vehicle driving. The braking takeover system is applied to vehicles, and includes a vehicle body collision sensor, an electronic stabilization system and an electronic parking system, wherein the vehicle body collision sensor is used for monitoring collision of the vehicles, and sending the collision information to the electronic stabilization system when the vehicle collision is detected, and the electronic stabilization system is used for receiving the collision information, controlling the operation ofthe braking takeover vehicles when the collision information satisfies a preset condition, and sending the operation control information to the electronic parking system. The electronic parking systemis used for receiving the operation control information and controlling the stopping and braking of the vehicles. The method can prevent the vehicle from losing control and causing secondary collisions, and reduce the damage of vehicle collision accident by controlling the operation of the vehicles under the preset condition.
Owner:GEELY AUTOMOBILE INST NINGBO CO LTD +1
Telescopic step-by-step layered buffering vehicle bumper
ActiveCN111002934AImprove cushioning performanceAvoid secondary collisionBumpersAutomotive engineeringCoil spring
The invention discloses a telescopic step-by-step layered buffering vehicle bumper, and belongs to the field of vehicle bumpers. The bumper comprises a bumper shell assembly, an energy absorption block, a bumper beam, a bumper support, a first-stage buffer mechanism, a second-stage buffer mechanism, a valve base assembly and a bearing plate. The primary buffer mechanism comprises a first support,a second support and a plurality of spiral springs; the first-stage buffer mechanism can ensure that the bumper absorbs energy during torsional vibration rotation. Therefore, overlarge torsional vibration and impact amplitude in impact are attenuated; a common amplitude value of a resonance region in impact is inhibited and a large torque is transmitted; even if the collision direction of the external force is uncertain, when the vehicle bumper is collided, multi-stage buffering can be carried out through the two-stage buffering mechanism, that is to say, the two-stage buffer mechanism can convert the vertical impact load into the horizontal transverse impact load, and can buffer the horizontal transverse impact load to play an important role in improving the impact energy absorption effect, improving the vehicle collision safety and protecting pedestrians.
Owner:南昌华翔汽车内外饰件有限公司
Pressure disturbance wave opening launching box front cover capable of laterally moving and overturning
The invention discloses a pressure disturbance wave opening launching box front cover capable of laterally moving and overturning. The launching box front cover is characterized in that a flange seatsleeve and a separation cover body are glued through AB glue, so that the rocket missile launching box front cover can be quickly opened under the action of the pressure disturbance wave to do lateralturnover movement, and the rocket missile launching box front cover can be quickly separated from a missile body movement channel; the structure is safe and reliable, the manufacturing process is simple, and the safety of a projectile body and a launcher can be effectively prevented from being influenced by contact of the cover body and the projectile body.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY +1
Rear-independent suspension swing arm mounting bracket assembly for automobiles
InactiveCN106696624APlay a protective effectImprove the protective effectPivoted suspension armsForeign matterVehicle frame
The invention discloses a rear-independent suspension swing arm mounting bracket assembly for automobiles. The rear-independent suspension swing arm mounting bracket assembly comprises a swing arm body formed by butt welding of an upper swing arm and a lower swing arm; connecting elements are arranged at two ends and in the middle of the swing arm body, the connecting element at one end of the swing arm body is connected with a bodywork double-ear hinge support while the connecting element at the other end is connected with a rear suspension steering knuckle, and the connecting element located in the middle is connected with a horizontal stabilizing rod; the bottom of the swing body is covered with a rubber protective layer which is used for protecting the lower swing arm, and direct contact of splashing stones, foreign matters and the like with the lower swing arm is prevented; the swing arm body is provided with two frame connecting ends and one knuckle connecting end, and a front bushing pipe is arranged at one frame connecting end while a rear bushing pipe is arranged at the other frame connecting end; the upper swing arm body and the lower swing arm body are provided with rectangular sediment tanks correspondingly concave to the swing arm body at positions between the center of the swing arm and the rear bushing pipe on the swing arm body.
Owner:ANHUI TIANYU AUTO PARTS MFG
Multiple protection integrated helicopter anti-crash seat
PendingCN110606207AExcellent anti-crash performance and protection performanceAvoid secondary collisionSeating arrangementsWeight reductionCrash dataEngineering
The invention discloses a multiple protection integrated helicopter anti-crash seat which comprises a main skeleton, a weighing sensor, a magneto-rheological damping system, an upper torso forced tightening and quick releasing system, a seat bucket, a multifunctional vest and a controller; the seat bucket is in sliding connection with the main skeleton in a vertical direction; the magneto-rheological damping system is fixedly arranged on the seat bucket and is connected with the main skeleton through the weighing sensor; the upper torso forced tightening and quick releasing system is arrangedon the seat basin; the multifunctional vest is connected with the seat bucket through the upper torso forced tensioning and quick releasing system; and the controller is respectively connected with the weighing sensor and the magneto-rheological damping system. The multiple protection integrated helicopter anti-crash seat has excellent anti-crash performance and protection performance, can provideoptimal protection for all percentile occupants, enables a pilot to maintain an optimal posture, prevents secondary collision, has a quick releasing function, can realize one-key unlocking, and meetsthe life-saving requirements for various complex environments after the pilot falls.
Owner:AEROSPACE LIFE SUPPORT IND LTD
Vehicle Collision Protection System
InactiveCN104276043BAvoid accidentsAvoid secondary collisionElectric devicesHigh pressureEmbedded processing
Owner:东莞钜威软件科技有限公司
Two-stage bumper body energy-absorbing bumper
The invention discloses a two-stage bumper body energy-absorbing bumper comprising a first stage bumper body and a second bumper body which are fixedly connected through a bolt; a buffer slot is installed between the first stage bumper body and the second stage bumper body; the buffer slot is provided with an unilateral movement sleeve, a large air spring and a small air spring. The two-stage bumper body energy-absorbing bumper is compact and has simple structure and reasonable design, easy assembly, reliable connection, and can effectively mitigate and absorb the impact pressure from the outside; and by means of the unilateral movement sleeve, secondary bump problem occurs during sudden stop can be effectively prevented; the air bag in the second stage bumper body can play a role of buffer and protection so that failure due to first stage bumper damage caused by excessive impact force is prevented and therefore the impact force is reduced to the smallest; personal property safety is effectively protected, the driving security is greatly increased and the bumper is easy to use and promoted.
Owner:GUIZHOU UNIV
Method and device for controlling vehicle braking and vehicle
ActiveCN111731243AAvoid damageAvoid secondary collisionAutomatic initiationsDriver input parametersDriver/operatorControl theory
The invention relates to a method and a device for controlling vehicle braking and a vehicle, and the method comprises the steps: obtaining the collision type of a current vehicle after the current vehicle is collided; acquiring driving information of the current vehicle according to the collision type; determining whether the current vehicle is in a safe state according to the driving information; under the condition that it is determined that the current vehicle is in the safe state, obtaining driving parameter information of the current vehicle, determining the consciousness state of the driver according to the driving parameter information, wherein the consciousness state comprises a non-intelligence state and an intelligence state; and under the condition that the consciousness stateis determined to be a non-intelligent state, controlling the current vehicle to brake. According to the method, the influence of the driving information of the current vehicle and the consciousness state of the driver on secondary collision after collision can be comprehensively considered, and the problem that beneficial subjective risk avoiding operation implemented by the driver is shielded canbe avoided, so that secondary collision can be flexibly and effectively avoided, and damage of collision to the vehicle is relieved.
Owner:GREAT WALL MOTOR CO LTD
Automobile
InactiveCN111660982AAvoid secondary collisionAvoid secondary damageBelt retractorsPedestrian/occupant safety arrangementBack seat passengerAirbag
The invention discloses an automobile which comprises a rear seat row; the rear seat row comprises at least two seats; the automobile further comprises a rear-row passenger head safety air bag system;the rear-row passenger head safety airbag system comprises a passenger detection module, an airbag controller, at least two safety belt pre-tightening modules, at least one ignition module, a collision sensor and an acceleration sensor which are in communication connection with one another; the collision sensor captures a collision signal, and the acceleration sensor detects an acceleration signal; the airbag controller analyzes, judges and processes the collision signal and the acceleration signal; an ignition instruction is timely sent out to drive an ignition module to start ignition for collision which is about to impose threats to the safety of passengers; the safety belt pre-tightening modules are used for pre-tightening a safety belt; when the automobile is in sharp turn or sharp brake and the passengers incline by a large margin, the heads of the passengers are in contact with each other through the air bag, so that secondary collision between the passengers is prevented, andtherefore secondary injuries are avoided.
Owner:摩登汽车有限公司
Energy absorption type bumper
InactiveCN106143372ASimple structureCompact and reasonable installationBumpersVibration attenuationShaped beam
The invention relates to the technical field of passive safety of vehicles, in particular to an energy absorption type bumper. A front inverted-U-shaped beam and a rear inverted-U-shaped beam of the bumper are fixedly connected together through a bolt, a buffer chamber is formed between the front inverted-U-shaped beam and the rear inverted-U-shaped beam, a folding supporting plate and at least 5 air springs are installed in the buffer chamber, and two round corners at the tail end of the folding supporting plate are of circular-arc T-shaped supporting structures, so that a buffering effect is played when collision occurs at the round corners. The bumper is simple in structure and compact and reasonable in installation, does not need a too large space, can effectively decrease and absorb most of outside impact energy and better plays buffering and vibration attenuation effects, the impact resistance of the vehicle bumper is improved, meanwhile the collision strength can be minimized, accordingly the personal and property safety can be effectively ensured, and the safety of an automobile in running is greatly improved. Therefore, the energy absorption type bumper is easy to use and popularize.
Owner:GUIZHOU UNIV
Tubular composond air pocket
A composite tubular airbag can be more quickly aerated by less air while impact forces to passengers are reduced. It has a trussed structure and an auxiliary bag above the former and connected with each other, and can be equipped with more inlets. Pressure membranes are arranged on the connection points between longitudinal and lateral tubes of each storey.
Owner:HUNAN UNIV
Collision type impact experience device
The invention discloses a collision type impact experience device. The collision type impact experience device comprises a base (17) and a slide rail (16) arranged on the base (17); two ends of the slide rail (16) are provided with a seat bogie (1) and a colliding bogie (9) respectively; the seat bogie (1) and the colliding bogie (9) can collide with each other through a pulling force provided by an elastic traction device; and a seat bogie buttering block (7) and a colliding bogie buttering block (12) which are arranged at the front ends of the seat bogie (1) and the colliding bogie (9) respectively can contact and squeeze each other so as to butter colliding impact. According to the collision type impact experience device of the invention, collision is adopted an impact crash mode, and impact can be an internal force and does not need to be balanced by an extern force, and therefore, a base will not move relative to a field in an impact process, and special fixing processing for the whole device is not needed, and therefore, limitations on a use field can be greatly decreased.
Owner:湖南立中科技股份有限公司
Working method of airborne occupant multi-stage airbag cooperative buffer seat
The invention discloses a working method of an airborne occupant multi-stage airbag cooperative buffer seat. The multi-stage airbag cooperative buffer seat comprises an upper air chamber, a middle airchamber and a lower air chamber; the upper air chamber, the middle air chamber and the lower air chamber are arranged by stacking from top to bottom, the upper air chamber can exhaust to the outsidethrough an upper air chamber exhaust valve for decompression, and can exhaust to the middle air chamber through a combined exhaust valve, and the middle air chamber is expanded to achieve first-stagebuffer; the middle air chamber can exhaust to the outside through a middle air chamber exhaust valve, and can further exhaust to the lower air chamber through a second combined exhaust valve, and thelower air chamber is expanded to achieve secondary buffer; the lower air chamber can exhaust to the outside through a lower air chamber exhaust valve to achieve three-stage buffer; the multi-stage buffer method of the multi-stage airbag cooperative buffer seat can prevent a human body from colliding secondly with the interior of a fighting vehicle, achieve multi-stage release of the internal pressure of the airbag buffer seat, and prevent the airbag buffer seat from blasting, thereby effectively ensuring a safe landing of an airborne occupant.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Multi-stage airbag cooperative buffering seat for airborne occupant
PendingCN108357684AReduce volumeReduce weightSupports/holding devicesAircraft ejection meansInternal pressureExhaust valve
The invention discloses a multi-stage airbag cooperative buffering seat for an airborne occupant. The seat comprises an upper air chamber, a middle air chamber and a lower air chamber which are stacked from top to bottom; the upper air chamber can discharge air and release pressure through an air discharge valve of the upper air chamber and also discharge air to the middle air chamber through a first combined air discharge valve, and the middle air chamber expands to achieve first-stage buffering; the middle air chamber can discharge air and release pressure to the exterior through an air discharge valve of the middle air chamber and also discharge air to the lower air chamber through a second combined air discharge valve, and the lower air chamber expands to achieve second-stage buffering; the lower air chamber can discharge air and release pressure to the exterior through an air discharge valve of the lower air chamber to achieve third-stage buffering. Through multi-stage buffering of the multi-stage airbag cooperative buffering seat, not only can secondary collision between the human body and chariot interior parts be prevented, but also the multi-stage release of pressure in the airbag buffering seat can be achieved, the airbag buffering seat is prevented from being blasted, and therefore safe landing of the airborne occupant is effectively ensured.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Secondary collision prevention system, vehicle comprising the same and corresponding method and medium
The invention provides a secondary collision prevention system, a vehicle comprising the same, a corresponding secondary collision prevention method and a computer readable storage medium. The secondary collision prevention system comprises a pre-primary-collision motion trajectory prediction unit configured to predict motion trajectories of other two traffic participants, a primary collision occurrence judgment unit configured to predict whether primary collision occurs or not, an after-primary-collision motion trajectory prediction unit configured to predict motion trajectories of the othertwo traffic participants after the occurrence of the primary collision, a current vehicle motion trajectory prediction unit configured to predict a motion trajectory of the current vehicle, a secondary collision occurrence judgment unit configured to judge whether secondary collision between at least one of the other two traffic participants and the current vehicle occurs or not, and a secondary collision prevention unit configured to initiate secondary collision prevention if a secondary collision occurs. By means of the system, secondary collision can be prevented, and therefore the drivingsafety is improved.
Owner:AUDI AG
Automatic protective device of optoelectronic device
InactiveCN108216924AAvoid secondary collisionAvoid damagePackaging vehiclesContainers for machinesEngineeringSelf protection
The invention discloses an automatic protective device of an optoelectronic device. The automatic protective device comprises a box, a base plate is arranged at the bottom of the box, a plurality of insertion rods are fixedly connected to the top of the base plate, connecting grooves corresponding to the insertion rods are formed in the bottom of the box, the insertion rods are in sliding connection with the inner side wall of the connecting grooves, the insertion rods are sleeved with first springs, the two ends of the first springs are connected with the box and the base plate, the top of the base plate is fixedly connected with a joining rod, a control block is fixedly connected to the top of the joining rod, and the side wall of the box is provided with a first sliding groove corresponding to the control block. According to the automatic protective device, the base plate extrudes the first springs to protect the box, in addition, the base plate supports a side plate open through asupporting rod by means of cooperation of the joining rod and the control block, secondary collision caused after box falling is avoided, the self-protection function is achieved, box damage is avoided, and use by people is facilitated.
Owner:天津凯莱斯光电设备有限公司
High-speed large-flow valve controlled hydraulic speed generator
InactiveCN101975204AAvoid secondary collisionAvoid oscillationServomotor componentsInlet channelMechanical energy
The invention relates to a high-speed large-flow valve controlled hydraulic speed generator which comprises a pressure source, a high-speed large-flow control device and a hydraulic actuator, wherein the pressure source is connected with an inlet channel of the high-speed large-flow control device, the hydraulic actuator is connected with an outlet channel of the high-speed large-flow control device, and the connections are sealed to prevent leakage; and the high-speed large-flow control device can control the movement speed of a piston of the hydraulic actuator so as to adjust the test speed of impact collisions. The pressure difference between an upper cavity and a lower cavity of a piston valve plug is formed by means of the rapid release of pressure fluid, a large-size valve plug is quickly opened, and a larger flow is controlled by a smaller flow. The hydraulic energy of a power source is instantly converted into mechanical energy by means of the quick opening of a large-flow valve, so the difficulties of quick release of large energy and low reaction speed of the traditional large-flow valve in a project are overcome. A discharge circuit arranged in the hydraulic actuator realizes quick release of fluid pressure in a working cavity so as to avoid the oscillation of a piston assembly and the secondary collision of a test piece. The high-speed large-flow valve controlled hydraulic speed generator is applicable to high-speed heavy-load strong collision impact tests of electromechanical equipment, electronic products and various mechanical and construction structures.
Owner:WUHAN UNIV OF TECH
Obstacle avoidance method and automatic walking equipment
PendingCN114355934AReduce grass areaSimplify the planning processPosition/course control in two dimensionsSimulationObstacle avoidance
The invention provides an obstacle avoidance method and automatic walking equipment. According to the automatic walking device, after collision is detected, the broken-line-shaped obstacle avoidance path is executed, the obstacle avoidance width can be provided through the deflection distance between the bending angle position of the obstacle avoidance path and the original specified path, the automatic walking device returns to the original walking path direction after obstacle avoidance, and traversal operation continues to be executed along the original specified path. According to the obstacle avoidance mode, the obstacle can be bypassed at a short distance, and operation is carried out by being close to the edge of the obstacle as far as possible, so that the defects that the grassland near the obstacle is not cut or the cutting effect is poor and is not flat enough in an existing obstacle avoidance mode are overcome.
Owner:NANJING SUMEC INTELLIGENT TECH CO LTD
Seat device for protecting safety of passenger in bus rollover accident
ActiveCN103661030AImprove rollover safety performanceIncrease distanceVehicle seatsRolloverGyroscope
The invention discloses a seat device for protecting the safety of a passenger in a bus rollover accident. The seat device comprises a frame, a first telescopic rod, a spring, a crank, a food stand, a second telescopic rod and a locking device. An upper rod of the second telescopic rod is movably connected with the other end of the frame, a lower end of the second telescopic rod is fixedly connected with a base plate of a compartment, and the upper rod is movably inserted into the lower rod in a connected mode. The locking device is arranged on the lower rod. The crank is fixedly connected with one end of the first telescopic rod. One end, fixedly connected with the crank, of the first telescopic rod is movably connected with the middle of the foot stand, one end of the spring is connected with the middle of the crank, and the other end of the spring is connected with a transverse rod arranged at the upper end of the foot stand. The locking device comprises a hinge pin, a servo motor and a control system. A gyroscope and an acceleration sensor of the control system are respectively connected with an STM32F407 electronic control unit. One end of the hinge pin is connected with the servo motor, and the other end of the hinge pin is inserted into the upper rod and the lower rod in a telescopic mode. The seat device can effectively avoid second-time collision in the bus rollover accident, and the passenger protection capacity of a bus is greatly improved.
Owner:SOUTH CHINA UNIV OF TECH
Traction device convenient for trailer
ActiveCN111572297AEasy towingFirmly connectedTowing devicesBumpersElectrical and Electronics engineeringMechanical engineering
Owner:王利君
Novel expansion type safety air bag assembly
InactiveCN111497777AProtection securityPlay a protective effectBelt retractorsPedestrian/occupant safety arrangementAirbagControl theory
The invention discloses a novel expansion type safety airbag assembly, which belongs to the technical field of automobiles, and comprises a seat backrest and a safety airbag assembly, the safety airbag assembly comprises a wiring harness assembly, a first airbag and a second airbag, wherein the first airbag and the second airbag are connected through the wiring harness assembly. The first air bagand the second air bag are installed on a side face metal plate framework of the seat backrest, the wiring harness assembly is clamped into a rear foam groove of the seat backrest, and the upper faceof the wiring harness assembly is covered with the seat skin. An air bag connector of the wire harness assembly is connected with a vehicle body wire harness. The safety air bag assembly is used in cooperation with the electric pre-tightening safety belt; the air bag assemblies are arranged on the two sides of the seat backrest. No matter how each seat in the vehicle faces; when the vehicle control system detects that collision is inevitable, the electric pre-tightening safety belt tightly binds a passenger on the seat, the air bags are popped out from the two sides of the backrest of the seatto annularly surround the passenger, secondary collision between the passenger and vehicle interior trim is avoided, and the safety of a driver and passengers can be protected under the L4-level andL5-level automatic driving situation in the future.
Owner:FAW CAR CO LTD
Compound vibration-isolating and buffering device
InactiveCN102410329BWide frequency domain of vibration isolationImprove vibration isolation efficiencyHigh internal friction springsResonanceEngineering
The invention discloses a compound vibration-isolating and buffering device. By the compound vibration-isolating and buffering device, when an installation space is limited, electronic equipment can work reliably and durably under the conditions of severe vibration and impact. The compound vibration-isolating and buffering device is compounded by a steel rope vibration absorber and a rubber vibration absorber, and is provided with a lower base and an upper pedestal; the lower base is used for bearing the electronic equipment; the upper pedestal encircles a U-shaped border which is arranged on the side of a lower bottom surface and higher than the bottom surface of the lower base; and the upper pedestal which is higher than the bottom surface is arranged on three sides of the lower base surface. The steel rope vibration absorber is symmetrically and horizontally arranged between the lower base and the upper pedestal and is fixed by a bolt to realize the first-order vibration-isolating function in X, Y and Z directions; and the rubber vibration absorber is vertically arranged between the lower base and the upper pedestal and is fixed by a bolt, and the rubber vibration absorber realizes the second-order vibration-isolating, buffering and limiting functions when the device resonates and is impacted. The intrinsic vibration-isolating and buffering conflict of the conventional vibration isolator is solved to a certain extent, and the resonance peak can be reduced quickly.
Owner:中国兵器工业第二〇六研究所
Safe air sac and its preparation method and seat and car comprising same
ActiveCN1951735ADoes not affect expansionCause damagePedestrian/occupant safety arrangementMetallic materialsEngineering
The invention relates to a safety air bubble, which comprises a main body with exhaust holes. Wherein, the air bubble outside the exhaust holes is made from sheet metal without penetration; said holes are embedded into the bubble or sealed by the macromolecule film pasted on the bubble. The invention is anti-sliding diving safety air bubble, which can avoid user to slide under seat or away from the protective area of air bubble.
Owner:BYD CO LTD
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