Devices and methods for absorbing crash energy are described. A uniform deceleration unit (UDU) includes a first layer having a top and a bottom, the top of the first layer arranged to be outwardly facing towards a direction of a crash force when the UDU is installed, a second layer on the bottom of the first layer, the second layer having a rib and web structure with a first arrangement, a third layer on a bottom of the second layer, the third layer having a rib and web structure with a second arrangement, and a fourth layer on a bottom of the third layer, the fourth layer arranged to be inwardly facing when the UDU is installed, the fourth layer including a reaction beam arranged to allow the first, second, and third layers to crush. The UDU may be installed in or positioned near the side sill beam.
Sill beam uniform deceleration unit
2021-08-24
Patent
Electronic Resource
English