Flexible collision automatic braking parking syste

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Antenna flexible collision automatic braking and parking system

the natural creatures have the talent to give human infinite design inspiration, such as the invention of ultrasonic wave. The ability of insect antennae similar to "sensors" triggered technicians' anti-collision design of the front end of the car

insects have a pair of antennae on their heads, which have different shapes of sensory organs, giving them smell, touch and feeling. When the antennae feel dangerous, they will activate the relevant functions of the body and quickly escape. The rapid identification danger of insect tentacles. What testing machines are needed in the textile industry? And the function of automatic avoidance gives us some design inspiration. The flexible collision automatic braking and parking system of automobile tentacles we are developing imitates some functions of insect tentacles

the system can be expected to achieve the following functions:

1. When facing the danger of accident, if the driver is distracted and does not make a braking response, the safety system will automatically open for intervention due to the restriction of oil source flow

2. When collision is inevitable, prevent continuous collision accidents caused by improper operation of drivers, and significantly reduce the severity of accidents

3. The automatic braking system activates the member protection mechanism

4. the flexible impact belt is opened to effectively protect pedestrians

the automatic braking and parking function is realized through the flexible impact belt integrated system installed on the front bumper. The impact belt automatically expands and contracts according to the speed of the car. When the speed exceeds 6km/h, the impact belt extends forward by 150mm through the rotation of the micro motor, and extends 100mm in the direction of the left and right fenders, which is as beneficial as animals. The performance of Jinan universal testing machine, especially Jinan universal testing machine, is very guaranteed. It uses its tentacles to sense danger. When the vehicle speed is greater than 40km/h, the impact belt retracts and clings to the front bumper to improve the handling. The flexible impact belt is integrated with a high elastomer as the base pressure sensing layer and wrapped with external flexible decorative materials. The base is connected to the micro motor fixed on the anti-collision beam with plastic bolts. The micro motor drives the plastic nut to rotate and drives the collision belt to make telescopic movement. When the flexible impact belt contacts the object and generates a constant pressure, the impact belt begins to deform elastically, the pressure sensor is turned on, and the red warning light on the instrument panel automatically lights up to remind the driver to brake, and the automatic braking system starts to work. The system automatically analyzes the working condition according to the impact force of the vehicle speed to output the required braking pressure (even if the driver does not brake), opens the pre tightening device of the tension limiter of the safety belt and tightens the safety belt in time, so that the passengers cling to the seat to avoid collision injury. At the same time, close the vehicle oil supply system until the vehicle stops and stalls, so as to prevent the driver from misoperation and continuous collision accidents

the front end of the car is the main component that causes pedestrian casualties in the event of a pedestrian vehicle collision. Good energy absorption effect can be achieved through the advance energy absorption structure of the flexible collision belt and the elastic materials used. When pedestrians come into contact with the impact belt, the softness of the impact belt ensures that the component can absorb enough impact energy to reduce the injury to pedestrians. If a collision is unavoidable, the system helps reduce the severity of the accident

in the simulator comparison test, participants drove cars with or without this system, and deliberately simulated the distracted state. The results showed that the automatic partial braking reduced the collision speed from an average of 40km/h to 35km/h, and the maximum deceleration of 0.4g (about 4m/s2) could be achieved. In other words, it can achieve about 40% of the maximum braking efficiency, significantly reduce the casualties of drivers and front passengers, and reduce the maximum pressure on the human body caused by the collision by 20%

at present, the system is in the third phase of trial production and test. In the first two rounds of test data, although it only reaches 73% to 78% of the design state, these data also fully prove the function of the system in terms of personnel safety in vehicles, vehicle serial collision, pedestrian protection, and the necessity of studying the system. At this stage, it is necessary to gradually optimize the strength and elasticity of the flexible impact belt, the sensitivity of the pressure sensor on the impact belt and the electronic compatibility of the whole system

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