| abstract |
OnenMechanism (6) to mitigate the impact on an active hoodnMaterial is responsive to a signal generated by an impact sensorn(2) or a pre-impact sensor (2) or generated manually,nactivated. The mitigation mechanism (6) is capable of eithernreversible or irreversible the rigidity, the shape, the location,nthe orientation or the shifting force of the hood eithernaltogether or locally before an impact to change the hood. Of thenMechanism (6) for mitigation with active material becomes in one devicenheld, which is designed to be installed in operative connection with the hood surfacento become. The material (14) is defined by a first shape, anfirst dimension or first stiffness and is operational,nto a second figure, a second dimension or ansecond stiffness in response to the activation signal change. Suchnclose active materials (14)na: alloys with memory function,nelectroactive polymers, magnetic alloys with memory function,nPolymers with memory function,nmagnetorheological fluids, magnetorheological elastomers, electrorheologicalnFluids and piezoelectric materials. |