Vehicle identification number is a set of unique numbers consisting of seventeen letters or numbers, which can identify the performance data such as automobile manufacturer, engine and chassis serial number. In order to avoid confusion with the numbers 1, 0 and 9, the English letters I, O and Q are not used, and 10 does not use I, O, Q, U, Z and 0 for the year of production.
The third bit of its VIN will use 9 characters, and the 12- 14 bit will be used as the second part of recognition. Some manufacturers will use the third place of VIN as the classification of vehicles, such as trucks or buses. Take the vehicles produced by Volvo Car Factory in Sweden as an example. YV 1 for cars, YV2 for trucks and YV3 for buses and buses.
Function of vehicle bumper
Automobile bumper (anti-collision beam) is located in most areas of the front and rear of the automobile, ostensibly to avoid the influence of external damage on the vehicle safety system. They have the ability to reduce the injuries of drivers and passengers in high-speed collisions, and now they are increasingly designed for pedestrian protection. In order to achieve this goal, the front and rear bumpers of the car are plastic.
Plastic bumper is composed of three parts: outer plate, cushioning material and cross beam. Among them, the outer plate and buffer material are plastic, and the cross beam is punched into a U-shaped groove with a thickness of about1.5 mm; The outer plate and cushioning material are attached to the cross beam, which is connected with the longitudinal beam of the frame by screws and can be disassembled at any time.