1. The door impact beam
is well known, when the vehicle is subjected to side impact, the door is easily deformed by the impact, so that damage directly to the vehicle occupants. In order to improve the safety performance of vehicles, many car companies placed twelve very strong steel beams in the middle of automotive laminated on both sides of the door, which is often said that the side door impact bars.
is a bumper impact beam effect: when the side door is hit, sturdy fender poles can greatly reduce the degree of deformation of the side door, which can reduce vehicle impact damage to the vehicle occupant.