Abstract: A multistage airbag impact absorption apparatus of a truck is made of urethane and characterized by an airbag that has a plane shape on one side and an elliptical shape on the other side and has two air perforations attached with a perforated part and air inlet and outlet part, a core part formed with many core perforations attached to the airbag, a base plate formed with plate perforations and attached to the core part that helps the perforated part project out upon collision with the air inlet and outlet part, an air inlet and outlet part attached to air perforations of the airbag, core perforations of the core part and plate perforations of the base plate, a second impact absorption part attached to both sides of the base plate, and a second base plate that is attached to the truck body and supports the second impact absorption part.

Abstract: A vehicle system for automatic repairing of road potholes includes: a laser camera that measures distance from a vehicle to the pothole and calculates surface area based on the image and distance information, a first support shaft that moves back and forth, a multi operation device that cuts and crushes asphalt and flattens asphalt concrete, a heating device that melts asphalt, an asphalt vacuum suction device that sucks in asphalt and stores fragments in a residue storage tank, an asphalt concrete storage tank that stores asphalt concrete and supplies asphalt concrete around the road pothole, a residue storage tank that stores crushed asphalt sucked in, an oil supply nozzle that supplies oil, an air supply pump that supplies strong air for cleaning, and a vehicle device that operates power switch, cutting device motor, asphalt vacuum suction device, air supply pump, asphalt concrete volume calculation part, and roller part.

Abstract: Method for automatically repairing road potholes includes: irradiating and receiving laser to and from potholes, taking image of potholes and storing image information, calculating distance to potholes, calculating surface area of potholes based on distance to potholes and image information, transmitting image information and surface area information to vehicle device, storing surface area information and image information, calculating the amount of asphalt concrete based on surface area information, heating work area of potholes, cutting work area of potholes, crushing asphalt, sucking in crushed asphalt and storing it in residue storage tank, removing scraps of potholes, supplying asphalt concrete from asphalt concrete storage tank to potholes, receiving weight information from digital gauge at the bottom of the asphalt concrete storage tank to calculate the amount of asphalt concrete, flattening asphalt concrete on the potholes, and displaying image after completion of laying of asphalt concrete on the pot

Abstract: A vehicle system for automatic repairing of road potholes includes: a laser camera that measures distance from a vehicle to the pothole and calculates surface area based on the image and distance information, a first support shaft that moves back and forth, a multi operation device that cuts and crushes asphalt and flattens asphalt concrete, a heating device that melts asphalt, an asphalt vacuum suction device that sucks in asphalt and stores fragments in a residue storage tank, an asphalt concrete storage tank that stores asphalt concrete and supplies asphalt concrete around the road pothole, a residue storage tank that stores crushed asphalt sucked in, an oil supply nozzle that supplies oil, an air supply pump that supplies strong air for cleaning, and a vehicle device that operates power switch, cutting device motor, asphalt vacuum suction device, air supply pump, asphalt concrete volume calculation part, and roller part.