A crash structure for absorbing crash energy is provided for installation in a vehicle front, in which an actuating system is provided which sets a rigidity of the crash structure as a function of a signal characterizing a crash. Furthermore, the crash structure has a sensor system which outputs this signal. Moreover, the crash structure has two modules that are connected to each other, the connection breaking as of a predetermined force, so that then the at least two modules move with respect to each other, until at least one stop has been reached. The signal indicates the breaking and the reaching of the stop.
