Door system and a method for improving durability of a vehicle during a roof crush

Abstract

A door system for a vehicle includes a vehicle body structure and a first door structure. The first door structure includes a first door beam extending between a lower part and an upper part of the vehicle body structure when the first door structure is in a closed position. A first bracket is attached to a lower end of the first door beam. The first bracket is arranged to run in a first guide rail arranged in the vehicle body structure. The first guide rail includes a first recession. The first bracket includes a first protrusion arranged at a bottom end of the first bracket. Upon a roof crush, the first protrusion and the first recession in the first guide rail is arranged to engage to prevent separation of the first door structure from the vehicle body structure.