| 摘要 |
A bumper system for vehicles includes a B-shaped tubular bumper beam with top and bottom mid-walls defining a channel in its front surface. A polymeric energy absorber has multiple box-shaped sections that abut the front surface of the bumper beam and further includes rearwardly-extending nose sections that extend into the channel. The nose sections include collapse-controlling kick walls that lie along the top and bottom mid-walls and that are connected to the box-shaped sections. Upon impact by an object against the bumper system, the kick walls press into the top and bottom mid-walls, resulting in a consistent and controlled collapse of the energy absorber and tubes of the bumper beam. In another form, an energy absorber having box-shaped sections is positioned on a face of the bumper beam and integral box-shaped end sections designed for a consistent and controlled collapse on impact.
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