A method for alleviating head collision injury in collision accident between pedestrian and minibus
A technology for mini-buses and collision accidents, which is applied to vehicle components, pedestrian/occupant safety arrangements, motor vehicles, etc., can solve problems such as the unsuitability of mini-buses, increase the cost of automobile manufacturing, etc., to protect pedestrians' heads, reduce collision damage, The effect of optimizing the design
Inactive Publication Date: 2018-10-02
NORTHEAST FORESTRY UNIVERSITY +1
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Problems solved by technology
At present, in the aspect of pedestrian head protection in pedestrian-vehicle collision accidents, the research objects are mainly cars, and minibuses are rarely involved. The proposed pedestrian head protection technologies mainly include automatic engine hood ejection technology and pedestrian protection airbag technology. The application of technology will increase the cost of automobile manufacturing, which is not suitable for low-cost automobiles such as minibuses
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[0020] In a collision between a pedestrian and a minibus, the pedestrian is simplified into two parts, the head and the torso (including the legs), and the influence of the pedestrian's arms on the collision process is not considered. During the collision process, due to the supporting effect of the human skeleton, the pedestrian will rotate around the point A at the front edge of the hood of the minibus, and the head of the pedestrian will eventually collide with the hood or windshield of the minibus at a certain angle α, as shown in figure 1 . The relationship between the collision angle α and the size and structure of the front of the minibus is obtained by studying the motion state of the pedestrian's head at the moment of collision with the hood or windshield of the minibus. By changing the size and structure of the front part of the minibus and changing the collision angle α between the pedestrian's head and the hood or windshield of the minibus, the impact damage to the...
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The invention discloses a method for reducing a head collision injury in a collision accident of a pedestrian and a minibus. A function relational expression between a collision angle alpha of the pedestrian and the minibus and a minibus front portion size structure (including a windscreen inclination angle beta, an engine cover inclination angle gamma, an engine cover front edge height HA, an engine cover rear edge height (or windscreen lower edge height) HC, a windscreen upper edge height HM, an engine cover length AC and a windscreen length CM) is built. According to the built function relational expression, the minibus front portion size structure is changed, and therefore the collision angle alpha between the head of the pedestrian and a minibus engine cover or windscreen can be changed; and the head collision injury of the pedestrian is reduced, and the head of the pedestrian is protected. The method is simple and effective, and the vehicle manufacturing cost is not required to be increased; and the method has the important significance in optimization design of the minibus front portion size structure and head protection of the pedestrian in a traffic accident.
Description
technical field [0001] The invention relates to the field of head protection for pedestrians in traffic accidents, in particular to a method for improving the size of the front part of a miniature bus so as to reduce collision damage to pedestrians' heads in collision accidents between pedestrians and minibuses. Background technique [0002] In collision accidents between people and vehicles, the pedestrian's head is the most frequently injured organ, which can easily cause permanent disability or death. At present, in the aspect of pedestrian head protection in pedestrian-vehicle collision accidents, the research objects are mainly cars, and minibuses are rarely involved. The proposed pedestrian head protection technologies mainly include automatic engine hood ejection technology and pedestrian protection airbag technology. The application of technology will increase the cost of automobile manufacturing, which is not suitable for low-cost automobiles such as minibuses. The...
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IPC IPC(8): B62D65/00B60R21/34
CPCB60R21/34B62D65/00
Inventor 都雪静李昕光王占宇李金鹏郭欢欢
Owner NORTHEAST FORESTRY UNIVERSITY