Device with adjustable rigidity for absorbing impact energy and method for setting a rigidity of a device with adjustable rigidity

The device (550) has a die (620) for receiving and deforming a deformation element (610) upon movement of the deformation element in a supply direction (680) caused by an impact energy. An energy absorption unit (630) is deformed for receiving an impact energy with a first energy amount, which is larger than a second energy amount of the impact energy. The deformation element is deformed through the die. Independent claims are included for the following: (1) a method for adjusting a stiffness of a device; (2) a control unit for the execution of the method; and (3) a computer program product with a program code.